СИСТЕМА, МАШИНОЧИТАЕМЫЙ НОСИТЕЛЬ И СПОСОБ КОМПЬЮТЕРНОЙ ОБРАБОТКИ ДАННЫХ CCE-ТЕСТА ПЛАСТОВОЙ НЕФТИ ТИПА "BLACK OIL"

Изобретение относится исследованию и компьютерной обработке данных пластовых углеводородных флюидов с ярко выраженными признаками образования паровой фазы. Предложен способ компьютерной обработки данных ССЕ-теста пластовой нефти типа «black oil», который включает следующие шаги: получают данные, включающие по крайней мере массивы однофазной и двухфазной областей экспериментальных PV-изотерм; производят оценку корректности данных и сглаживание экспериментальных данных путем построения аппроксимирующей данные полиномиальной кривой, причем оценка корректности данных включает по крайней мере следующие проверки: отсутствия экстремумов и перегибов на графике аппроксимирующей функции, невыпуклости графика аппроксимирующей функции, превышения коэффициентом достоверности аппроксимации заданного критического значения непревышения максимальных расхождений между расчетными значениями и значениями, определенными экспериментально, допустимых величин; в случае некорректности данных осуществляют исключение ...

СИСТЕМА И СПОСОБ НАСТРОЙКИ/КАЛИБРОВКИ СЕМЕЙСТВ СТУПЕНЕЙ ТУРБОМАШИН

Группа изобретений предназначена для автоматического определения набора параметров для проектирования турбомашин. Технический результат - создание алгоритма оптимизации определения набора параметров настройки/калибровки для проектирования турбомашин. Для этого предложен способ, включающий ввод исходного набора параметров настройки/калибровки; вычисление количественных параметров семейства турбомашин на основе исходного набора параметров настройки/калибровки; сравнение вычисленных количественных параметров семейства турбомашин с измеренными количественными параметрами и вычисление первого расхождения между вычисленными количественными параметрами семейства и измеренными количественными параметрами; вычисление второго расхождения между исходным набором параметров настройки/калибровки и заданными по умолчанию значениями переменных турбомашины; формирование модифицированной целевой функции, которая включает как упомянутое первое, так и упомянутое второе расхождение; изменение, в течение итеративной ...

СПОСОБЫ ИМИТАЦИИ РАЗРЫВА ПЛАСТА-КОЛЛЕКТОРА И ЕГО ОЦЕНКИ И СЧИТЫВАЕМЫЙ КОМПЬЮТЕРОМ НОСИТЕЛЬ

Группа изобретений относится к методологии сбора данных для оценки и анализа подземных ресурсов на пригодность хранения ценных флюидов или минералов. Изобретения содержат варианты способа имитации разрыва пласта-коллектора и носитель информации, считываемый компьютером. Обеспечивает повышение эффективности способа и надежности устройства. Сущность изобретения: в соответствии с изобретениями собирают данные, связанные со свойствами пласта-коллектора, а также свойствами разрыва в пласте-коллекторе. Эти данные затем используют в сочетании с корреляционной матрицей для определения параметров модификации модели пласта-коллектора. Обеспечивают возможность соответствия корреляционной матрицы эмпирическому функциональному соотношению между параметрами модификации и данными на основе множества экспериментальных разрывов, заданных в пласте-коллекторе. Эффекты разрыва затем эмулируют путем селективной модификации модели пласта-коллектора с использованием параметров модификации для генерирования модифицированной ...

СПОСОБ ВЫЧИСЛЕНИЯ ФИЗИЧЕСКОГО ЗНАЧЕНИЯ, СПОСОБ ЧИСЛЕННОГО АНАЛИЗА, ПРОГРАММА ВЫЧИСЛЕНИЯ ФИЗИЧЕСКОГО ЗНАЧЕНИЯ, ПРОГРАММА ЧИСЛЕННОГО АНАЛИЗА, УСТРОЙСТВО ВЫЧИСЛЕНИЯ ФИЗИЧЕСКОГО ЗНАЧЕНИЯ И УСТРОЙСТВО ЧИСЛЕННОГО АНАЛИЗА

Изобретение относится к способам, устройствам и машиночитаемым носителям для вычисления физического значения и численного анализа. Технический результат заключается в снижении рабочей нагрузки при формировании модели расчетных данных и снижении вычислительной нагрузки в решающем процессе без ухудшения точности анализа. Способ вычисления физического значения, выполняемый компьютером, содержит этап вычисления физических значений, на котором посредством центрального процессорного модуля вычисляют физические значения в области анализа, разделенной на множество разделенных областей, с использованием дискретизированного основного уравнения, которое использует значения, не требующие координат вершин (Вершина) разделенных областей и информации о связности вершин (Связность), и которое выводят на основе метода взвешенных невязок и модели расчетных данных, в которой объемы разделенных областей и характеристические значения граничной поверхности, указывающие характеристики граничных поверхностей соседних ...

СИСТЕМА И СПОСОБ ОЦЕНКИ ВОЗДУШНОЙ СКОРОСТИ ЛЕТАТЕЛЬНОГО АППАРАТА НА ОСНОВАНИИ МОДЕЛИ НАКОПЛЕНИЯ ДАННЫХ О ПОГОДЕ.

Группа изобретений относится к системе и способу оценки множества параметров воздушной скорости. Система содержит один или более процессоров и память, хранящую данные и программный код, который при его исполнении процессором, приводит к осуществлению способа, заключающегося в том, что принимают множество рабочих параметров, представляющих рабочие режимы летательного аппарата, на основании которых определяют модельное динамическое давление, основанное на установившихся режимах полета, определяют переходное динамическое давление, основанное на экстремальных режимах полета, на основании отклонения температуры и вектора инерционной скорости оценивают устойчивость летательного аппарата определенным образом, на основании которой определяют, находится ли летательный аппарат в экстремальном режиме полета. При обнаружении факта нахождения в экстремальном режиме оценивают параметры воздушной скорости на основании переходного динамического давления. Обеспечивается улучшение оценки воздушной скорости ...

ПРОГНОЗИРОВАНИЕ БУРИМОСТИ ИСХОДЯ ИЗ ЭЛЕКТРОМАГНИТНОГО ИЗЛУЧЕНИЯ, ИСПУСКАЕМОГО В ХОДЕ БУРОВЫХ РАБОТ

Изобретение относится к системе, устройству и способу прогнозирования буримости горных пород на основе данных измерений электромагнитного излучения (ЭМИ) в ходе буровых работ. Техническим результатом является повышение эффективности бурения. Способ включает получение данных измерений электромагнитного излучения (ЭМИ), порожденного разрушением буровым ставом пород пласта в ходе буровых работ, при этом данные измерений ЭМИ получают от датчика низкой частоты, предназначенного для измерения сигналов ниже примерно 300 кГц, датчика средней частоты, предназначенного для измерения сигналов примерно от 300 кГц до 3 МГц, и датчика высокой частоты, предназначенного для измерения сигналов выше примерно 3 МГц, причем каждый датчик размещен на буровом ставе и измеряемые сигналы связаны с растрескиванием и дроблением горных пород в процессе бурения, выбор входных параметров, включающих параметры бурового става, параметры режимов и данные измерений ЭМИ на низкой, средней и высокой частотах; ввод входных ...

Способ применения информации о сложной группе биомаркеров для диагностики злокачественной опухоли легкого у субъекта, диагностический набор и вычислительная система с её использованием

Группа изобретений относится к медицине, а именно к онкологии, и может быть использована для диагностирования злокачественной опухоли легкого у субъекта. Способ предусматривает следующие стадии: 1) применяют вычислительную систему для получения модели диагностирования злокачественной опухоли легкого. Модель устанавливают с использованием: данных уровня экспрессии отдельных биомаркеров в сложной группе биомаркеров, измеренных из биологических образцов выборки, состоящей из пациентов со злокачественной опухолью легкого и людей без злокачественной опухоли легкого, или их обработанных данных B, где k представляет собой индекс для отдельных биомаркеров и i представляет собой индекс для отдельных биологических образцов выборки; 2) применяют вычислительную систему для получения данных уровня экспрессии отдельных биомаркеров, измеренных в биологическом образце субъекта, или их обработанных данных B, или данных уровня экспрессии отдельных биомаркеров, или их обработанных данных Bи возраст субъекта ...

УСТРОЙСТВО И СПОСОБ МОДЕЛИРОВАНИЯ МАГНИТОГИДРОДИНАМИКИ

Изобретение относится к области исследования плазмы. Магнитогидродинамическое моделирующее устройство включает в себя плазменный контейнер, в который помещен первый ионизируемый газ, первый электрический контур, расположенный рядом с плазменным контейнером, содержащий промежуток, электрические контакты на первой и второй сторонах промежутка, и первое вещество, имеющее, по меньшей мере, низкую магнитную восприимчивость и высокую проводимость. Первый электрический контур может быть составлен из совокупности одного или избыточного количества проводных контурных катушек. В таких случаях электрический контакт установлен через концы проводов катушки. Кроме того, магнитогидродинамическое моделирующее устройство включает в себя электропроводную первую катушку, намотанную вокруг плазменного контейнера и через первый электрический контур. Технический результат - обеспечение возможности моделирования магнитогидродинамики плазмы в нежидкостной среде. 19 з.п. ф-лы, 4 ил.

МЕТОД ДИСКРЕТНЫХ ЭЛЕМЕНТОВ ДЛЯ МОДЕЛИРОВАНИЯ РАЗВИТИЯ РАЗЛОМА В ПОРОДЕ, ОКРУЖАЮЩЕЙ ШТРЕК

Представлен метод дискретных элементов для моделирования развития разлома в породе, окружающей штрек, который включает: взятие колонок породы из угольного пласта в месторождении и запись значений RQD, наблюдение за деформацией штрека и выполнение статистического анализа характеристик распространения разломов в угольном пласте; испытание механических параметров образцов угольной породы в помещении и вычисление прочности породной массы в соответствии со значениями RQD; создание численной модели путем использования модуля UDEC-Trigon для регулировки параметров для обеспечения соответствия прочности породной массы и коррекцию параметров модели; и создание численной модели проектного масштаба для регулировки параметров для обеспечения соответствия характеристикам деформации в месторождении, и, в конечном итоге, имитация развития разлома в породе, окружающей штрек. Технический результат – в настоящем изобретении обеспечены точные и базовые механические параметры для численной имитации деформации ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ВЫДЕЛЕНИЯ СИГНАЛОВ В ДАННЫХ

Изобретение относится к области вычислительной техники для восстановления данных от устройства обнаружения излучения, которые были подвержены наложению импульсов. Технический результат заключается в повышении точности оценки в реальном времени параметров входящих событий обнаружения излучения. Технический результат достигается за счет приема выходных данных устройства обнаружения; преобразования выходных данных устройства обнаружения для формирования ступенчатых данных; обнаружения сигнала на основании ступенчатых данных и оценки параметра, связанного с одним или несколькими сигналами; причем выходные данные устройства обнаружения содержат множество образцов и сигнал, и причем преобразование выходных данных устройства обнаружения основано на преобразовании сигнала в преобразованный сигнал, причем преобразование сигнала в преобразованный сигнал содержит: моделирование сигнала на основании переменной переднего фронта и переменной заднего фронта; преобразование переменной переднего фронта ...

СПОСОБ ПРОГНОЗИРОВАНИЯ ДАННЫХ ИЗМЕНЕНИЯ ДАВЛЕНИЯ ОКРУЖАЮЩИХ ПОРОД ОЧИСТНОЙ ВЫРАБОТКИ

Изобретение относится к вычислительной технике. Технический результат заключается в обеспечении надежного прогнозирования характеристик изменения давления окружающих пород очистной выработки за короткое время. Способ прогнозирования данных изменения давления окружающих пород очистной выработки включает создание модели прогнозирования для скорости изменения данных изменения давления окружающих пород для любого участка очистной выработки и ее интегрирование для получения прогнозной вариационной модели данных изменения давления окружающих пород в определенном интервале; многократное получение серии фактических отличий данных изменения давления окружающих пород путем сбора данных изменения давления окружающих пород с различных станций наблюдения в различных положениях относительно фронта очистного забоя и использование прогнозной вариационной модели данных изменения давления окружающих пород в определенном интервале для выполнения нелинейной регрессии на серии фактических отличий данных изменения ...

СПОСОБ ПРОГНОЗИРОВАНИЯ РАЗРЫВОВ, УСТРОЙСТВО ПРОГНОЗИРОВАНИЯ РАЗРЫВОВ, ПРОГРАММА, НОСИТЕЛЬ ЗАПИСИ И СПОСОБ ВЫЧИСЛЕНИЯ КРИТЕРИЯ РАСПОЗНАВАНИЯ РАЗРЫВОВ

Изобретение относится к способу прогнозирования разрывов, устройству прогнозирования разрывов и способу вычисления критерия распознавания разрывов. Сущность: прогнозируют разрыв соединительного участка объекта, подлежащего анализу, включающего в себя пару элементов, соединенных друг с другом, посредством использования метода конечных элементов, при этом способ содержит: первый этап, на котором получают по меньшей мере размер элемента участка основного материала, из числа параметров, заданных в элементной модели для объекта, подлежащего анализу; второй этап, на котором вычисляют, в качестве критерия распознавания разрывов, предельный момент разрыва, заданный посредством функции, включающей в себя в качестве переменной размер элемента участка основного материала; и третий этап, на котором распознают, превышает или нет момент, прикладываемый к соединительному участку при анализе деформаций элементной модели для объекта, подлежащего анализу, предельный момент разрыва, и выводят результат распознавания ...

СПОСОБ АНАЛИЗА И ПРОЕКТИРОВАНИЯ СТИМУЛЯЦИИ ПОДЗЕМНОГО ПЛАСТА

Группа изобретений относится к способам стимуляции подземного пласта и прогнозирования распределения материала в процессе и после стимуляции подземного пласта. При этом способ содержит получение входных данных обработки пласта, моделирование переноса, по меньшей мере, одного материала в проекте обработки пласта. Определение и подготовку проекта обработки и выполнение обработки пласта в соответствии с выбранным проектом обработки. Моделирование переноса, по меньшей мере, одного материала в проекте обработки пласта при помощи модели, которая содержит допущение, что для каждой временной стадии обработки пласта известны поле скоростей для переноса, по меньшей мере, одного материала и геометрия зоны стимуляции, и вычисление, по меньшей мере, одной физической величины, описывающей распределение материала на каждом временном шаге с использованием Лагранжева подхода. Технический результат заключается в повышении эффективности обработки пласта. 2 н. и 11 з.п. ф-лы, 9 ил.

УСТРОЙСТВО И СПОСОБ МОДЕЛИРОВАНИЯ МАГНИТОГИДРОДИНАМИКИ

Изобретение относится к области магнитогидродинамики. Магнитогидродинамическое моделирующее устройство включает в себя плазменный контейнер. Магнитогидродинамическое моделирующее устройство также включает в себя первый ионизируемый газ, содержащийся по существу в пределах плазменного контейнера. Кроме того, магнитогидродинамическое моделирующее устройство также включает в себя первый электрический контур, расположенный рядом с плазменным контейнером, в котором первый электрический контур включает в себя разрядник, первый электрический контакт на первой стороне разрядника, второй электрический контакт на второй стороне разрядника и первое вещество, имеющее, по меньшей мере, низкую магнитную восприимчивость и высокую проводимость. Первый электрический контур может быть составлен из совокупности одного или избыточного количества проводных контурных катушек. В таких случаях электрический контакт установлен через концы проводов катушки. Кроме того, магнитогидродинамическое моделирующее устройство ...

УСТРОЙСТВО ИМИТАЦИОННОГО МОДЕЛИРОВАНИЯ ДЛЯ ПРОГНОЗИРОВАНИЯ ПОВЕДЕНИЯ СИСТЕМЫ ТОЧЕЧНЫХ МАСС

... 1. Устройство имитационного моделирования для прогнозирования поведения системы точечных масс, образованной моделируемыми N точечными массами, причем устройство содержит:средство задания координат для задания медленных координат, которые представляют собой M координат, в основном предполагающих структурное изменение в системе точечных масс на основании 3N координат точечных масс, описывающих структуру системы точечных масс, и быстрых координат, которые являются координатами, описывающими структуру системы точечных масс, и не зависят от медленных координат;средство извлечения координат для получения структуры быстрых координат как функции медленных координат путем подчинения быстрых координат медленным координатам и получения, с учетом влияния изменения быстрых координат на медленные координаты вследствие изменения медленных координат, структуры медленных координат как функции K коллективной координаты (коллективных координат) общей координаты, которая связана с медленными координатами каноническим ...

СИСТЕМА И СПОСОБ ВЫПОЛНЕНИЯ МОДЕЛИРОВАНИЯ ПЛАСТОВОГО РЕЗЕРВУАРА С ИСПОЛЬЗОВАНИЕМ ПРЕДОБУСЛОВЛИВАНИЯ

... 1. Способ решения линейных систем уравнений, возникающих при моделировании пластового резервуара, при этом способ содержит этапы, на которых:(a) предоставляют линейную систему уравнений потока текучей среды, которая представляет свойства потока текучей среды в геологических породах подземного пластового резервуара, причем линейная система уравнений потока текучей среды содержит множество неизвестных переменных;(b) применяют блочно-диагональное масштабирование к линейной системе уравнений потока текучей среды, чтобы получить блочно-диагональную матрицу;(c) применяют неполную нижнюю-верхнюю приближенную факторизацию с пороговым значением к блочно-диагональной матрице, чтобы получить матрицу предобусловливания; и(d) итеративно решают линейную систему уравнений потока текучей среды для неизвестных переменных с использованием матрицы предобусловливания.2. Система для решения линейных систем уравнений, возникающих при моделировании пластового резервуара, при этом система содержит:- базу данных ...

СИСТЕМА И СПОСОБ НАСТРОЙКИ/КАЛИБРОВКИ СЕМЕЙСТВ СТУПЕНЕЙ ТУРБОМАШИН

... 1. Способ автоматического определения окончательного набора параметров настройки/калибровки для проектирования новой турбомашины, включающий:ввод исходного набора параметров настройки/калибровки;вычисление количественных параметров семейства турбомашин на основе исходного набора параметров настройки/калибровки;сравнение вычисленных количественных параметров семейства турбомашин с измеренными количественными параметрами и вычисление первого расхождения между вычисленными количественными параметрами семейства и измеренными количественными параметрами;вычисление второго расхождения между исходным набором параметров настройки/калибровки и заданными по умолчанию значениями переменных турбомашины;формирование модифицированной целевой функции, которая включает как упомянутое первое, так и упомянутое второе расхождение;изменение, в течение итеративной процедуры, упомянутого исходного набора параметров настройки/калибровки таким образом, чтобы найти окончательный набор параметров настройки/калибровки ...

СПОСОБ ОПРЕДЕЛЕНИЯ ВНУТРЕННИХ НАПРЯЖЕНИЙ МАТЕРИАЛА СПЛОШНОЙ ВЫЕМКИ И ЗАКЛАДКИ

ОПРЕДЕЛЕНИЕ КРАЕВЫХ ТРЕЩИН

Materialeigenschaftsprädikator für gegossene Aluminium-Legierungen

Eine Einrichtung und ein Herstellungserzeugnis zum Voraussagen von Materialeigenschaften einer gegossenen aluminiumbasierten Komponente. Gemäß einer Form umfasst ein computerbasiertes System zahlreiche Berechnungsmodule, die programmtechnisch derart miteinander zusammenzuwirken, dass die Module beim Empfangen von Daten, die der gegossenen aluminiumbasierten Komponente entsprechen, Leistungsmerkmale des Materials bereitstellen. Die Module umfassen ein Modul zur thermodynamischen Berechnung, ein Modul für thermophysikalische Eigenschaften, ein Modul für mechanische Eigenschaften und ein Modul zur Materialauswahl oder Legierungsausgestaltung. Die Kombination der Module zusammen mit bekannten Material- und Geometriedatenbanken zusätzlich zu Mikrostruktur- und Defektdatenbanken unterstützt die Erzeugung von Materialeigenschaften, die für die Gussteilausgestaltung, die Gießprozesssimulation, eine CAE-Knoteneigenschaftsabbildung und eine Haltbarkeitsanalyse benötigt werden.

Verfahren zur Ermittlung der Dämpfung eines Bauteils

Es wird ein Verfahren (200) zur Ermittlung der Dämpfung eines Bauteils (100) beschrieben. Das Verfahren (200) umfasst das Ermitteln (201) von mechanischen Spannungen in dem Bauteil (100), die in Reaktion auf eine Schwingungs-Anregung des Bauteils (100) entstehen. Des Weiteren umfasst das Verfahren (200) das Identifizieren (202), auf Basis der mechanischen Spannungen, einer Vielzahl von lokalen Schwingungsquerschnitten durch das Bauteil (100). Dabei verbindet ein Schwingungsquerschnitt einen ersten Punkt (102) des Bauteils (100), der eine Druckspannung aufweist, mit einem zweiten Punkt (103) des Bauteils (100), der eine Zugspannung aufweist. Außerdem umfasst das Verfahren (200) das Ermitteln (203) einer Vielzahl von lokalen Abstandswerten (104, 105) für die entsprechende Vielzahl von lokalen Schwingungsquerschnitten. Das Verfahren (200) umfasst weiter das Ermitteln (204) einer lokalen Dämpfung des Bauteils (100) für jede der Vielzahl von lokalen Schwingungsquerschnitten unter Verwendung ...

VERBESSERTE DATENERFASSUNG UND -SCHÄTZUNG

Ein System oder Verfahren zum Bestimmen virtueller Daten eines Systems, bezogen auf einen Messpunkt mit einem in der Nähe befindlichen Sensor, wird von einer Steuerung bestimmt. Das System berechnet modellierte Daten an dem Messpunkt, filtert die modellierten Daten, um gefilterte Daten zu bestimmen, und berechnet eine Differenz zwischen den modellierten Daten und den gefilterten Daten, um einen Kompensationsterm zu bestimmen. Das System bestimmt auch gemessene Rohdaten vom Sensor an dem Messpunkt und kombiniert diese gemessenen Rohdaten mit den Kompensationsdaten, um die virtuellen Daten an dem Messpunkt zu berechnen. In einigen Konfigurationen werden die modellierten Daten aus einem physik-basierten Modell bestimmt. Darüber hinaus kann das Filtern der modellierten Daten das Verwenden eines Tiefpassfilters beinhalten, und eine Zeitkonstante für den Tiefpassfilter kann basierend auf den Betriebsbedingungen des Systems berechnet werden.

Unendliches akustisches 3D-Element auf der Basis einer elliptischen vielpoligen Erweiterung

VERFAHREN UND RECHNER-VORRICHTUNG ZUR MODELLIERUNG DES SPRITZENS EINES FLUIDUMS IN EINE FORMKAVITÄT

System und Verfahren zum Vorhersagen einer analytischen Anomalie bei der rechnerischen Fluiddynamikanalyse

Es werden ein System und ein Verfahren zum Vorhersagen einer analytischen Anomalie geschaffen. Das Verfahren zum Vorhersagen einer analytischen Anomalie kann das Erzeugen eines Signalerzeugungsmodells und eines Analysemodells für ein Entwurfsobjekt basierend auf ersten Analysedaten, das Anwenden eines durch das Signalerzeugungsmodell erzeugten Signals auf das Analysemodell basierend auf zweiten Analysedaten, um einen oder mehrere geschätzte Werte zu berechnen, das Vergleichen der geschätzten Werte und der zweiten Analysedaten, um mehrere Frühwarninformationen zu erzeugen, und darauf basierend, ob die mehreren Frühwarninformationen eine vorgegebene Bedingung erfüllen, das Bestimmen, ob eine Frühwarnung auszugeben ist, enthalten.

Verfahren des Vorhersagens einer Deformation eines Harzformteils

Ein Verfahren des Vorhersagens einer Deformation eines Harzformteils umfasst: Schritt (S1) des Beschaffens von Harztemperaturverteilungsdaten zur Zeit des Formens des Harzformteils; einen Schritt (S2) des Erzeugens von Kristallinitätsverteilungsdaten entsprechend den Harztemperaturverteilungsdaten basierend auf einer ersten Korrelation zwischen einer Temperatur und einer Kristallinität des Harzformteils, die unter Verwendung einer tatsächlich gemessenen Kristallinität des Harzformteils erhalten wird; einen Schritt (S3) des Erzeugens von Verteilungsdaten eines mechanischen Eigenschaftswerts entsprechend den Kristallinitätsverteilungsdaten basierend auf einer zweiten Korrelation zwischen der Kristallinität und dem mechanischen Eigenschaftswert des Harzformteils, die von der tatsächlich gemessenen Kristallinität und dem mechanischen Eigenschaftswert des Harzformteils erhalten wird; und einen Schritt (S4) des Vorhersagens der Deformation des Harzformteils unter Verwendung der Harztemperaturverteilungsdaten ...

Finite vortex model for use in fluid flow numerical simulation, especially for modeling unsteady flows, whereby a general roll-off model is used to model the finite edge vortex

Finite vortex model for modeling oscillating structures in fluid flows, without use of complex Navier-Stokes methods. The method is based largely on replacement of the KUTTA condition of current airfoil theory, i.e. smooth flow on the trailing edge, with a general roll-off model for the finite edge vortex.

For the production of an internal combustion motor, a mathematical model is prepared to give the lowest possible piston/cylinder friction at maximum working temperatures

In the production of an internal combustion motor a mathematical model is prepared in advance for the friction between the pistons and the cylinder walls and the contour changes between the friction surfaces are computed for different working temperatures. The pistons and cylinders are produced to give the lowest possible friction at maximum working temperatures.

Standardized method for calculating elastic and electromagnetic fields, involves initially coupling of two field variables by using polar unit vector

A method for standardized calculation of electromagnetic and elastic fields in which two assigned field variables p = (x,y,z,t) and q = (x,y,z,t) are coupled by an E-triad F according to the relationship c div F.p = -qo and c div F power -1.q = -po ...

System and method for predicting fluid flow characteristics within fractured subsurface reservoirs

System and method for performing reservoir simulation using preconditioning

Simulation of rotor-stator flow interaction

Predicting downhole mechanical cleaning efficiency in wellbore walls during wellbore fluids displacements

Predicting the efficiency of downhole mechanical removal of one or more accreted materials from one or more wellbore walls may prevent the unnecessary consumption of resources in a wellbore fluids displacement operation. A method and system for removing accreted materials in a wellbore is provided, wherein the efficiency of mechanical removal of accreted materials may be characterized based, at least in part, on a comparison between one or more actual shear stresses exerted by a wellbore servicing fluid at one or more depths of the wellbore and one or more required shear stresses to remove the accreted materials from the depth. The one or more required shear stresses may be determined using one or more of one or more known properties of the one or more accreted materials, one or more rheology models, one or more hydraulic parameters, one or more wellbore hydraulic models, and one or more downhole conditions. To account for one or more effects of eccentricity in the wellbore, the one or ...

System and method for performing oilfield simulation operations

Method of simpifying the construction of a model simulating a physical process in a meterial environment

Display of fluid body simulation using concentration spheres

Thin films or sharp edges in a fluid body are expressed in the display of a particle-based fluid-body simulation. The surface construction method is a method applied to a method for rendering calculation results on the screen of a display device using data that are obtained by calculation of a fluid-body simulation based on a particle method executed by a CPU or the like. The method has a first stage of allocating a concentration sphere to a particle that is a calculation object and computing an implicit function curved surface, and computing a plurality of base vertices (V0) for creating a fluid-body surface by the implicit function curved surface; and a second stage that is executed at least one time for adjusting a surface sharpness for each of the plurality of base vertices (V0) for creating the fluid-body surface that is computed in the first stage.

Prediction method

Modelling sand production

A coupled non-linear finite element model of a fluid flowing through the porous structure of a wellbore, carrying with it suspended particulates. The method includes providing a finite element mesh and using the finite element mesh to model a mechanical field, a porous flow field and a mass field at the wellbore. The method further comprises exchanging information two ways between each field in the model and then updating the simulation, such that there is a three way coupling between the mechanical field, porous flow field and mass field in the model. The mass field may be modelled using an Eulerian formulation and solving the advection-diffusion equation with an implicit solver. The mechanical field may be modelled using a Lagrangian formulation and solved with an explicit method. Also disclosed is a method of optimising hydrocarbon extraction via hydraulic fracturing by simulating sand production using the above model.

Method for simulating fluid flows, a computer program and a computer readable medium

Diffusion flux inclusion for a reservoir simulation for hydrocarbon recovery

DATA PROCESSING APPARATUS

... 1284421 Determining optimum path J L SAUVAN 18 Sept 1969 [19 Sept 1968] 45976/69 Heading G4A Data processing apparatus is arranged to perform a method for the search for a set of optimum component trajectories in a set of networks, which includes starting a retrograde search from each of the target points of the networks and, when all the starting points have been reached by the search, identifying and storing for each network, as belonging to the optimum component trajectory sought, the last node reached by the retrograde search before the starting point, this last node then being used as a fresh starting point for a further retrograde search from the same target point. The set of optimum component trajectories, one per network, constitute an optimum trajectory for the set of networks, i.e. minimum length consistent with constraints. Assuming a network can be defined on a 12 x 12 grid with the links between nodes being no more than 2 units in either direction along each of the two co-ordinate ...

Method and apparatus for facilitating HVAC design for a building

Well simulation

The method comprises determining one or more zones in hydrocarbon formation14, whereby each zone surrounds a wellbore 12, and then associating a particular viscous resistance with each zone 16, 18 & 20. The viscous resistance may be derived from a formation sample material having been subjected to formation damage (e.g. from the permeability of the formation sample material having been subjected to simulated formation damage ). The method comprises modeling the production through the one or more zones into the wellbore using the associated viscous resistance with computational fluid dynamics techniques. Modeling also takes account of production liner 30 and layer of mud cake 28 within annular region 32. There is also described a method of determining the viscous resistance derived from the permeability.

Condition based maintenance program based on life-stress acceleration model and time-varying stress model

Methods and system for implementing Condition Based Maintenance (CBM) of downhole systems and equipment, including drilling tools, wireline tools and production tools is presented in this disclosure. The presented CBM-based approach combines the use of a tool life distribution with a life-stress acceleration model and a time-varying stress model to model failure times of a tool. One or more failure parameters related to operation of the tool during the operational run can be calculated based on a life measure of the tool determined for each step in the series of steps of the operational run, a time duration of each step, and a life duration of the tool at reference levels of stress variables. Maintenance of the tool can be performed based on the calculated failure parameters.

Simultaneous analysis of two data sets from a formation test

Microseismic processing using fiber-derived flow data

Simulation of quantum optical systems

Well simulation

Passive virtual synchronous machine with bounded frequency and virtual flux

A power electronic converter is operated as a virtual synchronous machine (VSM) with bounded frequency and virtual flux. The converter can be operated in grid-connected or islanded mode to take part in regulation of frequency and voltage. A real power-frequency channel regulates frequency and a reactive power-flux channel regulates virtual flux, equivalent to voltage amplitude. An interconnection block ƩI takes the frequency w, the virtual flux j, and an input current to generate voltage e’, quasi-torque signal T~, and quasi-“quorte” signal Г~, where quorte is a dual quantity to torque. A block ƩPQ converts the quasi-torque and quasi-quorte signals into negative real power P and negative reactive power Q feedback signals respectively. A virtual damper generates output voltage e, i.e., a control signal, according to the voltage generated by the interconnection block and measured voltage v. A virtual impedance Z(s) generates a virtual current iv according to the difference of the two voltages ...

METHOD FOR TRANSIENT QUASI THREE-DIMENSIONAL SIMULATION OF MULTIPHASE FLUID FLOW IN PIPELINES

SOLUTION PROCEDURE AND DEVICE FOR SIMULATION OF LAYER FORMATIONS IN LARGE YARDSTICK

OBJECT-ORIENTED SIMULATION OF A HYDROCARBON RESERVOIR

Modellierung der Alterung eines Bauteils aus einem nichtlinear elastischen Werkstoff unter Belastung

The invention relates to a method for the computational modeling of the aging of a component composed of a nonlinearly elastic material under a specified load and is characterized in that the unloaded component (1) is replaced with a plurality of node points (3) in the model, which node points are connected among each other by a plurality of bars (2), wherein a mathematical material model is imposed on each bar (2) and the bars form a first mesh; the component (1) is deformed in the model in accordance with the real load and additional bars (4) are inserted between the node points (3) in this deformed state, wherein the additional bars (4) form a second mesh, while bars (2) of the first mesh are deleted; and the extent of the interconnection of the second mesh is made dependent on the duration of the deformed state.

Method to engineer dependability into abandonment/kick-off plugs

A system and method comprising utilizing numerical analysis to determine the dependability of plug formulations and locations in wells. The plugs are typically used for abandonment or kick-off purposes. The system and method rely on defining initial physical and material properties, generating a geometric model, and applying loads and boundary conditions to the model. The numerical analysis is preformed to determine stress or deformation for the components of the well, thus providing a basis for selecting a suitable well plug formulation and location.

Particle data computing apparatus and particle data computing method

PARTICLE DATA COMPUTING APPARATUS PARTICLE DATA COMPUTING METHOD Disclosed herein are a computer-readable medium including a particle data computing program for computing particle data used in simulation which is carried out in a computer, based on a discrete element method (DEM), a 5 particle data computing apparatus that is operated using this program, and a particle data computing method used when this program is executed. When an integrated displacement amount of the particles constituting a contact candidate pair is equal to or more than one-quarter cell 10 or more, likelihood becomes high that the particles of the contact candidate particle pair, which was not in contact with each other, would come into contact with each other. In such high likelihood, data relating to contact candidate particle pairs are updated. With this arrangement, even 15 if contact candidate particle pair data updating is decimated and part of contact determination is omitted to increase computing speed of ...

Apparatus, method and system for reservoir simulation using a multiplicative overlapping Schwarz preconditioning for adaptive implicit linear systems

Object discretization to particles for computer simulation and analysis

Methods, systems, and computer-readable media for fast updating of oil and gas field production models with physical and proxy simulators

Stability testing in reservoir simulation flash calculations

System and method for modeling flow events responsible for the formation of a geological reservoir

A system configured to model geometric architectures of flow events in geological reservoirs. In one embodiment, the system comprises a geological control input, a rules module, and a modeling module. The geological control input is configured to receive a set of environmental conditions that act as geological controls impacting a geometric architecture of a geological reservoir at a point in geologic time. The rules module is configured to apply a set of rules to the set of environmental conditions present at the point in geologic time to determine geometric flow parameters of the geometric architecture, wherein the set of rules comprise one or more empirical rules. The modeling module is configured to model the geometric architecture based on the geometric flow parameters determined for the flow event by the rules module.

Methods For Predicting Warp Of A Wood Product Produced From A Log

WOOD PRODUCT AND METHODS FOR PREDICTING WARP OF A WOOD PRODUCT PRODUCED FROM A LOG The present disclosure relates to methods for predicting warp of a wood product produced from a log. Some embodiments include performing a three dimensional scan of the log to obtain geometric data, using the geometric data to construct a log profile, partitioning the geometric data into geometric components, removing one or more selected geometric components to create one or more residual grid profiles, deriving geometric statistics from the one or more residual grid profiles or from the log profile, and entering the geometric statistics into a model for predicting warp of the wood product. The geometric statistics may include orientation dependent and orientation independent statistics. Raw Log Surface 120-PaI!Ilil 60- 20- 14 ! 2 1o 60 2 5 YfDiameter (in) XDiameter (in) ...

METHOD AND SYSTEM FOR INTEGRATED RESERVOIR AND SURFACE FACILITY NETWORKS SIMULATIONS

SYSTEM AND METHOD FOR EVALUATION OF FLUID FLOW IN A PIPING SYSTEM

Geomechanical and geophysical computational model for oil and gas stimulation and production

In some aspects, a number of subsystem models is accessed by a computer system. Each subsystem model represents dynamic attributes of a distinct physical subsystem in a subterranean region. At least one of the number of subsystem models represents dynamic attributes of a mechanical subsystem in the subterranean region. A discrete fracture network (DFN) model representing a fracture network in the subterranean region is accessed at the computer system. The DFN model includes junction models. Each junction model represents interactions between a respective set of subsystem models associated with the junction model. Junction variables of the junction model can be defined based on dynamic attributes of the respective set of subsystem models associated with the junction model. A stimulation treatment for the subterranean region can be simulated by operating the DFN model including the junction variables.

System and method for flexible and efficient simulation of varying fracture density in a reservoir simulator

Simulation system and method for a reservoir represented by a model having a plurality of matrix nodes, a plurality of fracture nodes, a fracture zone and a fracture-free zone are described. One embodiment includes computer-implemented steps of, for each of a plurality of matrix nodes in interconnected zones, characterizing the matrix nodes as dual matrix nodes or non-dual matrix nodes. Dual matrix nodes may be treated as a block and eliminated, after which the coefficient matrix and RHS vector for the model are updated. In-fill patterns between and among fracture nodes and non-dual matrix nodes resulting from the elimination are determined. For non-dual matrix nodes, the nodes are merged to a fracture grid, after which the coefficient matrix and RHS vector for the model are updated accordingly. The resultant linear system is linearly solved, and backsolving is performed for any eliminated dual matrix nodes.

Temperature coupling algorithm for hybrid Thermal Lattice Boltzmann method

A method includes simulating, in a lattice velocity set, transport of particles in a volume of fluid, with the transport causing collision among the particles; and generating a distribution function for transport of the particles, wherein the distribution function comprises a thermodynamic step and a particle collision step, and wherein the thermodynamic step is substantially independent of and separate from the particle collision step.

Method of calculating force acting on interface between immiscible fluids in fluid simulation

Variable discretization method for flow simulation on complex geological models

A variable discretization method for general multiphase flow simulation in a producing hydrocarbon reservoir. For subsurface regions for which a regular or Voronoi computational mesh is suitable, a finite difference/finite volume method ("FDM") is used to discretize numerical solution of the differential equations governing fluid flow (101). For subsurface regions with more complex geometries, a finite element method ("FEM") is used. The invention combines FDM and FEM in a single computational framework (102). Mathematical coupling at interfaces between different discretization regions is accomplished by decomposing individual phase velocity into an averaged component and a correction term. The averaged velocity component may be determined from pressure and averaged capillary pressure and other properties based on the discretization method employed, while the velocity correction term may be computed using a multipoint flux approximation type method, which may be reduced to two-point flux ...

Determining active constraints in a network using pseudo slack variables

A method for determining active constraint equations in a network of wells and surface facilities includes constructing at least one constraint equation for a connection in the network. Each constraint equation includes a respective slack variable and a respective slack variable multiplier. The method further includes constructing a base equation for the connection. The base equation includes the respective slack variable and another respective slack variable multiplier. The method further includes introducing a pseudo slack variable for another connection in the network such that a Schur complement, of a matrix of constraint and base equations dependent only on slack variable multipliers, is sparse. The method further includes solving for each respective slack variable using the Schur complement matrix. The method further includes adjusting a variable parameter of the network using results from solving for each respective slack variable.

IMPROVED VISUALIZATION OF ANATOMICAL CAVITIES

Described embodiments include a system that includes a display and a processor. The processor is configured to modify 5 an image slice by filling a portion, of the image slice, that corresponds to an anatomical cavity with a representation of a wall of the anatomical cavity, and to display the modified image slice on the display. Other embodiments are also described. 3429894v1 CDe CNb ...

Solution dependent output time marks for models of dynamic systems

A method of simulating a dynamic system includes receiving input data and applying the input data to a numerical forward model, and executing the forward model to simulate the dynamic system and generate solution data values. The method also includes, during execution of the forward model, comparing the solution data values to a pre-selected criterion. The method further includes, in response to at least one solution data value satisfying the pre-selected criterion, automatically generating a time mark for a time at which the at least one solution data value satisfied the pre-selected criterion and automatically outputting one or more solution data values associated with the time mark.

System and method for predicting the behavior of a component

DEVICE AND METHOD FOR SIMULATION OF MAGNETOHYDRODYNAMICS

A magneto-hydrodynamic simulator that includes a plasma container. The magnetohydrodynamic simulator also includes an first ionizable gas substantially contained within the plasma container. In addition, the magnetohydrodynamic simulator also includes a first loop positioned adjacent to the plasma container, wherein the first loop includes a gap, a first electrical connection on a first side of the gap, a second electrical connection of a second side of the gap, and a first material having at least one of low magnetic susceptibility and high conductivity. The first loop can be made up from an assembly of one or a plethora or wire loop coils. In such cases, electrical connection is made through the ends of the coil wires. The magnetohydrodynamic simulator further includes an electrically conductive first coil wound about the plasma container and through the first loop.

MAGNETIC ALIGNMENT OF NANOPARTICLES WITHIN A POLYMER

A method for magnetically aligning non-particles within a polymer, involving adding a magnetic nano-particle filler to a plastic material, such as a molten thermoplastic. The magnetic property allows the filler or particles to be aligned through the use of magnetic fields during the molding process. In one embodiment, the nano-particles are synthesized to a specific size, and are made by applying suitable coatings to existing fillers.

NUMERICAL METHOD OF CALCULATING HEAT, MASS, CHEMICAL AND ELECTRIC TRANSPORT FOR THREE-DIMENSIONAL POROUS SOLID

This invention relates to a method of estimating fluxes for the processes of matter and field transport through fluid-saturated or gas-saturated porous solid. The method comprises obtaining three-dimensional porous solid images by, but not limited, X-ray microtomography, 3D NMR imaging, 3D reconstruction from petrographic thin-section analysis etc., digital processing and morphological analysis of the 3D core images by consecutive application of the image filtering, segmentation and multiple property recognition for obtaining digital 3D models of porous solid samples and performing a set of morphological and geometrical statistical property analysis. For the above mentioned 3D model (models) heat, mass, chemical and electric fluxes are modeled (separately or in combination) under given boundary conditions by means of numerical solver. The new models, which are statistically equivalent to the abovementioned model (models) are generated by means of random field and stochastic geometry theory ...

COMPUTER-AIDED METHOD FOR PREDICTING THE COLLECTION OF PARTICLES BY A SURFACE OF A MOVING OBJECT

The invention relates to a computer-aided method for predicting particle uptake by a surface of an object moving in a flow current, comprising the following steps: preparing a discrete model of said object and the surrounding flow, including a projection area (21) for projecting said particles formed by a mesh of cells (23) with an identical size, and a mesh of cells (13) of said surface (11); simulating the projection of particles with a different size from said projection area (21) on the surface (11), both the density Di of projected particles and their size distribution being identical for the cell (23); obtaining for each cell (13) of said surface (11) the local uptake efficiency parameter ß by dividing the density Df of particles impacting against said cell (13) by the density Di of particles projected from the projection area (21).

SIMULATION OF QUANTUM OPTICAL SYSTEMS SUBJECT TO AN ELECTROMAGNETIC PULSE

This specification describes methods, systems and apparatus for simulating quantum optical systems. According to a first aspect of this disclosure, there is described a computer implemented method of simulating a quantum optical system, the method comprising: receiving properties of the quantum optical system; receiving properties of an electromagnetic pulse; determining a set of pseudospin equations based on the properties of the quantum optical system; determining initial values of electric field components and/or magnetic field components, and pseudospin components on a grid corresponding to a region of space comprising the optical system based on the pseudospin equations and the properties of the electromagnetic pulse; performing temporally shifted updating of the electric field components, the magnetic field components and the pseudospin components on the grid based on Maxwell's curl equations and the pseudospin equation to simulate time evolution of the quantum optical system under ...

DATA PROCESSING APPARATUS FOR NETWORK ANALYSIS

SPECTRAL LIGHTING MODELING AND CONTROL

Spectral irradiance distributions are calculated within a virtual environment based on arbitrary light source spectral power distributions. Architectural, horticultural and aquacultural lighting control systems use the calculated results to control both the intensity and spectral power distribution of the electric light sources. Energy consumption may be minimized while maintaining optimal occupant visual comfort and plant health.

SIMULATING FLUID PRODUCTION USING A RESERVOIR MODEL AND A TUBING MODEL

Fluid production can be simulated using a reservoir model and a tubing model. For example, pressure data and saturation data can be received from a reservoir model simulating a hydrocarbon reservoir in a subterranean formation. A tubing model can be generated by performing nodal analysis using the pressure data and the saturation data. A well-test result can be received that indicates an amount of fluid produced by the wellbore at a particular time. A tuned tubing model can be generated by adjusting the tubing model such that a tubing-model estimate of the amount of fluid produced by the wellbore at the particular time matches the well-test result. An estimated amount of fluid produced by the wellbore can then be determined using the tuned tubing model. The estimated amount of fluid produced by the wellbore may be used for production allocation or controlling a well tool.

METHODOLOGY FOR ANALYSIS OF VALVE DYNAMIC CLOSURE PERFORMANCE

A method for calculating a valve closure time includes performing a computational fluid dynamics model simulation of the valve. The method also includes performing multiple functional performance analysis model simulations of the valve based on the computational fluid dynamics model simulation of the valve to calculate the valve closure time. The functional performance analysis model simulations are based on a numerical solution of a second order differential equation according to an equation of motion given by: (I), where mL is a mass of translating components, y(t) is a piston displacement at a given time t, Ft is a force on the valve due to fluid flow, ?µ is a friction force, FD is a hydraulic damping force on the piston, FD is a spring force, FPPA is a hydraulic piston pressure assist force, FBPA is a hydraulic bore pressure assist force, and FG is a force due to gravity.

SYSTEMS AND METHODS TO INTEGRATE ENVIRONMENTAL INFORMATION INTO MEASUREMENT METADATA IN AN ELECTRONIC LABORATORY NOTEBOOK ENVIRONMENT

An empirical data management system (EDMS), such as an electronic laboratory notebook (ELN) system, includes an application server running an EDMS server application, a data storage system containing data in communication with the application server, and an environmental sensor unit in communication with the application server. The data comprises environmental data received from the environmental sensor unit.

OPTIMIZATION DEVICE AND CONTROL METHOD OF OPTIMIZATION DEVICE

A mechanism is provided by which exchange with the replica exchange method can be sufficiently performed in an optimization device. This optimization device includes: multiple annealing units in which states of each and different temperatures corresponding to the states of each are assigned, evaluation function values corresponding to the states are calculated, and the states are transitioned with a probability corresponding to the temperature and the evaluation function value; an exchange unit which exchanges the temperature or state between annealing units with a prescribed exchange probability that is based on the temperature and evaluation function value; and a temperature adjusting unit which changes the temperature of a target annealing unit of the multiple annealing units such that the exchange probability between the target annealing unit and a first annealing unit which is adjacent in order of temperature on the lower temperature side and the exchange probability between the target ...

MODELING TRENDS IN CROP YIELDS

A method and system for modeling trends in crop yields is provided. In an embodiment, the method comprises receiving, over a computer network, electronic digital data comprising yield data representing crop yields harvested from a plurality of agricultural fields and at a plurality of time points; in response to receiving input specifying a request to generate one or more particular yield data: determining one or more factors that impact yields of crops that were harvested from the plurality of agricultural fields; decomposing the yield data into decomposed yield data that identifies one or more data dependencies according to the one or more factors; generating, based on the decomposed yield data, the one or more particular yield data; generating forecasted yield data or reconstructing the yield data by incorporating the one or more particular yield data into the yield data.

COLLAPSE STRENGTH PREDICTION METHOD

A steel pipe collapse strength predicting method is characterized in being provided with: a step of using a plurality of standard steel pipes of which a collapse strength has been obtained in advance to derive a prediction formula indicating a relationship between D/t, being the outer diameter D (mm) of the steel pipe divided by the thickness t (mm) thereof, the material properties, a collapse strength controlling factor and a collapse controlling yield strength (sCDOS), and a predicted collapse strength; a step of obtaining D/t, the material properties and the collapse strength controlling factor for a steel pipe being evaluated; a step of obtaining a compressive stress-strain curve in the circumferential direction of the steel pipe being evaluated; a step of obtaining, as the collapse controlling yield strength, a stress that generates permanent strain in the steel pipe being evaluated, on the basis of the compressive stress-strain curve; and a step of calculating, on the basis of the ...

METHOD, COMPUTER-READABLE DATA CARRIER, COMPUTER PROGRAM, AND SIMULATOR FOR DETERMINING STRESSES AND SHAPE DEVIATIONS IN AN ADDITIVELY PRODUCED CONSTRUCTION

The invention relates to a method for determining production-related shape deviations (el,i) and stresses in a construction (11) produced by means of an additive production method, which construction is produced by solidifying construction material in successive layers (12). The invention further relates to a use of said method to produce corrected production data (19) and to the application of said production data in an additive production system. The invention further relates to a computer-readable data carrier and to a computer program for performing said method and to a simulation in which such a computer program can run. In the method, superlayers (13) are used in order to reduce the computational complexity of the simulation. According to the invention, in order to ensure a simulation result of sufficient accuracy with justifiable computational complexity, effective shrinkage factors (ai or al,i) are determined for the solidified construction material in order to calculate the effective ...

SYSTEM AND METHOD FOR THE GENERATION AND USE OF AN ELECTRO-THERMAL BATTERY MODEL

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for the generation and use of an electro-thermal battery model. One of the methods includes obtaining battery data comprising voltage values, with each voltage value corresponding to an operating state of the battery. The method includes selecting a battery model having convex parameters and non-convex parameters. The method includes processing the battery data by performing a fitting procedure to determine values of the convex parameters and non-convex parameters. The fitting procedure includes fitting the convex parameters with respect to the battery data during which the non-convex parameters are held fixed. The fitting procedure includes fitting the non-convex parameters with respect to the battery data. The fitting procedure also includes creating an electro-thermal model for a battery from the selected battery model using the fitted values.

MODELING OF OIL AND GAS FIELDS FOR APPRAISAL AND EARLY DEVELOPMENT

A method, apparatus, and program product model address a modeling gap existing between basin and reservoir modeling through the use of a Reservoir Fluid Geodynamics (RFG) model usable for simulations conducted at a relatively fine spatial resolution and over a geological timescale.

SIMULATION DEVICE, COMPUTER PROGRAM, AND SIMULATION METHOD

The purpose of the present invention is to provide a simulation device, computer program, and simulation method which are capable, while avoiding a first-order phase transition, of resolving a minus-sign problem. Provided is a simulation device, comprising: a magnetization computation unit which computes, as the magnetization in a prescribed direction, the mean of the sum of the prescribed direction components of a plurality of spins; an initial Hamiltonian computation unit which computes, as an initial Hamiltonian, a magnetic field function which includes a first-order term and at least a second-order term of the magnetization; a first probability distribution function computation unit which computes a probability distribution function with regard to the first Hamiltonian, said function including a multiplication term of a magnetic field function and a delta function which takes as a variable the difference between the magnetization and the mean of the sum of the prescribed direction components ...

PROCESS FOR EXPLOITING AN OIL DEPOSIT USING A SIMULATION OF A BASIN AND A COMPOSITIONAL KINETIC MODEL

... - La présente invention concerne un procédé pour déterminer la quantité et/ou la qualité des hydrocarbures présents dans un bassin sédimentaire, au moyen d'un simulateur numérique de bassin comprenant un modèle cinétique, le modèle cinétique étant appliqué avec des paramètres cinétiques pour reproduire la transformation de la matière organique en au moins un composé chimique sous l'effet de l'augmentation des températures. La présente invention vise à convertir des paramètres cinétiques relatifs à une première représentation compositionnelle en des paramètres cinétiques relatifs à une deuxième représentation compositionnelle, au moyen d'une référence compositionnelle établie à partir d'une pluralité de roches mères de référence et du taux de transformation d'une roche de référence.

REVISED CURE CYCLE FOR ANNULAR PACKING UNITS

A method to manufacture a blowout preventer seal including disposing at least one insert and at least one elastomeric material in a mold, heating the mold to a cure temperature, curing the at least one elastomeric material, measuring a temperature of the at least one elastomeric material during the curing, adjusting a cure time and the cure temperature based on the measured temperature of the elastomeric material, and removing the cured blowout preventer seal from the mold.

ENRICHED MULTI-POINT FLUX APPROXIMATION

Methods and systems to reduce or eliminate numerical oscillations in solutions that occur when using conventional MPFA when modeling flow in a reservoir are provided. The technique may be referred to as enriched multi-point flux approximation (EMPFA) and may be used to improve the consistency and accuracy in constructing pressure interpolations in cells for the purpose of determining flux equations used in predicting flow in a reservoir.

SIMULATION SYSTEM AND METHOD

A method and system are described that enhance the computational simulation, such as a fluid flowing through a porous media, under the present techniques. In particular, a computer implemented simulation method is described that includes initializing a simulator and utilizing an intelligent performance assistant to select a set of parameters and algorithms for the simulator. Then, equations are solved with the set of parameters and algorithms and the solution to the equations is then obtained.

METHOD AND WORKFLOW FOR ACCURATE MODELING OF NEAR-FIELD FORMATION IN WELLBORE SIMULATIONS

Methods and systems are presented in this disclosure for accurate modeling of near-field formation in wellbore simulations. The approach presented herein is based on splitting a transient three-dimensional solution of finding heat and mass transfer parameters in a wellbore and a near-wellbore region into coupling modeling of a flow inside the wellbore with several transient two-dimensional solutions in the vicinity to the wellbore.

DEVICE AND METHOD FOR CALCULATING STABILITY AND PREDICTING ERROR OF POWER SYSTEM NETWORK

The present invention relates to a device and a method for calculating stability and predicting an error of a power system network, the device comprising: a standard object information reception unit for receiving standard object information provided by a power system network; a connection state stability calculation unit for calculating connection state stability (Sstate) using the standard object information; a connection time stability calculation unit for calculating connection time stability (Stime) using the standard object information; a network connection stability calculation unit for calculating a final network connection stability using the network connection state stability (Sstate) and the connection time stability (Stime); and an error prediction information display unit for displaying error prediction information including at least one of network path information, a network state value, the final network connection stability, the connection state stability (Sstate), and the ...

SYSTEMS AND METHODS FOR SENSORLESS STATE ESTIMATION, DISTURBANCE ESTIMATION, AND MODEL ADAPTION FOR ROTARY STEERABLE DRILLING SYSTEMS

A method of estimating a state of a rotary steerable drilling system comprising applying a control input to a rotary steerable drilling system, sensing an actual output of the rotary steerable drilling system, inputting the control input into a mathematical model of the rotary steerable drilling system, receiving an estimated output of the rotary steerable drilling system from the mathematical model, generating an error compensation signal based on a difference between the actual output and the estimated output, and applying the error compensation signal to the mathematical model.

VISUALIZATION OF DISTANCES TO WALLS OF ANATOMICAL CAVITIES

Described embodiments include a system that includes a display and a processor. The processor is configured to modify an image that includes a representation of a wall of an anatomical cavity, by overlaying an icon that represents an intrabody tool on a portion of the image that corresponds to a location of the intrabody tool within the anatomical cavity, and overlaying a marker on a portion of the representation of the wall that corresponds to a location at which the intrabody tool would meet the wall, were the intrabody tool to continue moving toward the wall in a direction in which the intrabody tool is pointing. The processor is further configured to display the modified image on the display. Other embodiments are also described.

MODELING FLUID DISPLACEMENT IN A WELL SYSTEM ENVIRONMENT

In some aspects, a one-dimensional flow model is generated. The one-dimensional flow model can represent flow of a first fluid and a second fluid in a flow path in a well system environment. The one-dimensional flow model comprises an effective diffusion coefficient model for a composite fluid volume comprising the first and second fluids. The effective diffusion coefficient model calculates an effective diffusion coefficient for the composite fluid volume based on a difference between the respective densities and viscosities of the first fluid and the second fluid.

OPTIMIZED FLOW CONTROL DEVICE PROPERTIES FOR ACCUMULATED GAS INJECTION

A computer implemented method, system, and computer program product are provided for determining flow control device (FCD) properties for a gas injection well that would yield a prescribed shape of a gas injection front according to a target gas injection profile. An FCD distribution function is adjusted based on the results of a simulation of injected gas flow distribution in the gas injection well over a period of time. The simulation and resulting adjustment of the FCD distribution function is repeated until a convergence between a shape of a displaced oil volume front obtained using the adjusted flow control device distribution function and a target gas injection profile is reached within a predetermined convergence range. The FCD properties are then determined based on the adjusted FCD distribution function.

MULTIDIMENSIONAL DATA REPOSITORY FOR MODELING OILFIELD OPERATIONS

A method for performing oilfield operations including collecting a model data set from the oilfield for populating a location of a plurality of locations in a multidimensional data repository, the plurality of locations accessible based on a plurality of dimensions of the multidimensional data repository, performing, using a processor of a computer, analysis of at least the model data set retrieved from the location of the plurality of locations to generate a result, adjusting, using the processor, the multidimensional data repository based on the result, and adjusting the oilfield operations based on the multidimensional data repository.

Wave modelling

A computer implemented method of modelling propagation of a wave through a first space. In one embodiment, the instructions store data in the memory representing a first space and a second space, the first space being within the second space, wherein the second space comprises a plurality of calculation blocks, each calculation block that generates a value representing propagation of a wave at a point in the second space, each calculation block carrying out a calculation to determine a value for the point in the second space represented by the calculation block based upon a value generated by at least one other calculation block, and store data in the memory defining at least one boundary defining the first space within the second space, the at least one boundary further dividing the second space into at least two spaces outside of the first space.

Use of devices for measuring fluid movement conditions at a distance to reduce the design and manufacturing cost of moving-fluid-driven working devices

The present invention incorporates a device for measuring fluid movement conditions at a distance, such as LIDAR, into an underlying device for extracting useful work from a moving fluid, such as a wind turbine, for the purpose reducing the cost of designing and manufacturing the underlying device.

Developing Programs in a Graphical Specification and Constraint Language

System and method for specifying and implementing programs. A graphical program is created in a graphical specification and constraint language that allows specification of a model of computation and explicit declaration of constraints in response to user input. The graphical program includes a specified model of computation, a plurality of interconnected functional blocks that visually indicate functionality of the graphical program in accordance with the specified model of computation, and specifications or constraints for the graphical program or at least one of the functional blocks in the graphical program. The specified model of computation and specifications or constraints are useable to analyze the graphical program or generate a program or simulation.

Numerical method of calculating heat, mass, chemical and electric transport for three-dimensional porous solid

This invention relates to a method of estimating fluxes for the processes of matter and field transport through fluid-saturated or gas-saturated porous solid. The method comprises obtaining three-dimensional porous solid images by, but not limited, X-ray microtomography, 3D NMR imaging, 3D reconstruction from petrographic thin-section analysis etc., digital processing and morphological analysis of the 3D core images by consecutive application of the image filtering, segmentation and multiple property recognition for obtaining digital 3D models of porous solid samples and performing a set of morphological and geometrical statistical property analysis. For the above mentioned 3D model (models) heat, mass, chemical and electric fluxes are modeled (separately or in combination) under given boundary conditions by means of numerical solver. The new models, which are statistically equivalent to the abovementioned model (models) are generated by means of random field and stochastic geometry theory; heat, mass, chemical and electric fluxes are simulated for new models. The obtained fluxes are averaged over realizations to be used in macroscopic calculations.

Methods and apparatus for manufacturing objects having optimized response characteristics

A method for manufacturing an object having a potential {x} which is generated in response to a field {f} applied thereto is provided. The method includes the step of designing a geometric model of the object. A computerized mathematical model of the object is generated by discretizing the geometric model of the object into a plurality of finite elements and defining nodes at boundaries of the elements, wherein values of the field {f} and potential {x} are specified at the nodes. A material property matrix [k] is then calculated based on the relationship {f}=[k] {x}. Material property coefficients are then extracted from the material property matrix [k] for each finite element in the computerized mathematical model and the extracted material property coefficients are compared to material property coefficients for known materials to match the extracted material property coefficients to the material property coefficients for known materials. Manufacturing parameters corresponding to the matched material property coefficients are then determined. The object is then manufactured in accordance with the determined manufacturing parameters.

Simulator and method for simulating an acoustic field of an acoustic waveguide

Simulators and methods for simulating an acoustic field of an acoustic waveguide are provided. A sound speed profile of the acoustic waveguide is generated, where the acoustic waveguide has a region of a first fluid within a second fluid, and the first fluid has a different acoustic index of refraction than the second fluid. The sound speed profile and predetermined parameters of a sound source and a receiver are applied to a parabolic equation (PE) model of sound propagation in the acoustic waveguide. The acoustic field of the acoustic waveguide is determined from the PE model. The acoustic field includes an interference pattern from interference between an acoustic signal of the acoustic source and at least one signal refracted by the region of the second fluid.

System and Method For Performing Reservoir Simulation Using Preconditioning

A computer-implemented system, method, and software are provided for solving linear systems of equations arising in reservoir simulation. A linear system of fluid flow equations, including a plurality of unknown variables, is provided that represents fluid flow properties in a geological formation of a subterranean reservoir. Block diagonal scaling is applied to the linear system of fluid flow equations. Threshold incomplete lower-upper approximate factorization is applied to obtain a preconditioning matrix, which can be used to iteratively solve unknown variables associated with the system of fluid flow equations. Preconditioning can be used directly as part of a preconditioned Krylov subspace method or alternatively as a 2 nd stage preconditioner in a CPR algorithm.

Numerical analysis method of a vehicle drive

A first analyzing step is a step that conducts numerical analysis of a flow field but does not conduct numerical analysis of a temperature field in a state in which a motor rotor is rotating. The second analyzing step is a step that conducts numerical analysis of both the flow field and the temperature field after the first analyzing step ends. Accordingly, before numerical analysis of the flow field and numerical analysis of the temperature field are conducted together, numerical analysis is conducted first on the flow field in first analyzing step before it is conducted on the temperature field. As a result, compared with when the second analyzing step is executed from the beginning without conducting the first analyzing step, the calculation load of the numerical analysis on an electronic calculator can be reduced, which enables the time that it takes to conduct the numerical analysis to be shortened.

Particle simulator and method of simulating particles

The memory size used in DEM calculation of particle having a particle diameter distribution is suppressed. A particle simulator includes a particle-information retaining unit 11 holding particle information including position and velocity information of a particle group, a particle-number changing unit 14 assigning particle numbers specifying particles in an order in accordance with the positions of the particles to the particle, a contact-candidate-list preparing unit 16 selecting particle pairs of a target particle and another particle that may be in contact with the target particle, a contact determining unit 18 calculating contact forces generated between particles in the particle pairs on the basis of particle information and storing the contact forces in the contact-force tables, a contact-force calculating unit 19 extracting contact forces of particles having a diameter greater than particles from contact-force tables using a contact-force reference table 54 , extracting contact forces of particles having a diameter smaller than the particles by specifying the storage positions in the contact-force tables using integrated-contact-candidate numbers s_jgi[i], and calculating the sum of the contact forces, and a particle-information updating unit 20 updating the particle information on the basis of the contact forces of the particle.

Method for tuning patient-specific cardiovascular simulations

Computational methods are used to create cardiovascular simulations having desired hemodynamic features. Cardiovascular modeling methods produce descriptions of blood flow and pressure in the heart and vascular networks. Numerical methods optimize and solve nonlinear equations to find parameter values that result in desired hemodynamic characteristics including related flow and pressure at various locations in the cardiovascular system, movements of soft tissues, and changes for different physiological states. The modeling methods employ simplified models to approximate the behavior of more complex models with the goal of to reducing computational expense. The user describes the desired features of the final cardiovascular simulation and provides minimal input, and the system automates the search for the final patient-specific cardiovascular model.

Simplified Smoothed Particle Hydrodynamics

For efficient smooth particle hydrodynamics using more particle information, virtual particles are created. Each virtual particle represents an averaging of properties for the fluid particles in a cell. For density, force, or other calculations for a given fluid particle, the interaction between the particles within a cell are calculated. For calculating the influence of particles outside the cell on the particle in the cell, the virtual particles from the neighboring cells are used. The interaction with these aggregate particles reduces the number of calculations while still including the influence from particles of other cells.

Computational fluid dynamics modeling of a bounded domain

A method for hybrid computational fluid dynamics (CFD) approach for modeling a bounded domain, such as a data center, is disclosed. The CFD modeling approach divides the bounded domain into one or more viscous regions and one or more inviscid regions, and then performs a viscous domain solve for the viscous region(s) using a computational fluid dynamics model with turbulence equations (i.e., a turbulence model), and performs inviscid domain solve for the inviscid region(s) using a set of inviscid equations (or potential flow equations). After solving for the different regions, results of the viscous domain solve and the inviscid domain solve are provided as a model of the bounded domain.

Estimating building thermal properties by integrating heat transfer inversion model with clustering and regression techniques for a portfolio of existing buildings

A static heat transfer model is derived from a system of dynamic equations by integrating the dynamic equations over different time periods. That static heat transfer model links periodic (e.g., monthly) energy usage with cooling and heating degree hours, humidifying and dehumidifying hours. Its coefficients of measuring correlations correspond to the thermal parameters of buildings. Temporal data from a building may be used to estimate the overall heat transfer parameters. A clustering scheme may be developed to decompose all the buildings into different clusters based on one or more similarity criteria. The overall heat transfer parameters are separated into values for the wall, roof and window using multiple buildings' data in the same cluster or group.

Boundary Handling for Particle-Based Simulation

Boundary handling is performed in particle-based simulation. Slab cut ball processing defines the boundary volumes for interaction with particles in particle-based simulation. The slab cut balls are used for collision detection of a solid object with particles. The solid object may be divided into a plurality of independent slab cut balls for efficient collision detection without a bounding volume hierarchy. The division of the solid object may be handled in repeating binary division operations. Processing speed may be further increased by determining the orientation of each slab cut ball based on the enclosed parts of the boundary rather than testing multiple possible orientations.

Hierarchical Modeling of Physical Systems and Their Uncertainties

A hierarchical modeling tool or process is provided that represents the fill range of behavior of a hydrocarbon system, accurately including uncertainties and potential events affecting the system. The potential events may include actions taken and information learned. The hierarchical modeling tool may be embedded within a decision support system or used in a stand-alone fashion. Disclosed aspects may link from accurate (high-detail) physics models to an accurate uncertainty representation, and then reduce the accurate uncertainty representation to a high-speed representation of both the physics model and the uncertainty that can be used in an optimizer.

System and method for computing thermal boundary conditions from an unstructured cfd simulation on structural components

A system and method for computing thermal boundary conditions from an unstructured computational fluid dynamics (CFD) simulation for a thermal simulation of a structural component are disclosed. The thermal boundary conditions include convective heat transfer coefficient (HTC) and reference temperature (T ref ). In one embodiment, prism cells are formed to capture boundary layer substantially next to a wall of the structural component. Further, tetrahedral cells are formed to capture a diffused temperature layer substantially next to the formed last prism cell and in a direction normal to the wall. Furthermore, temperature of each of the prism cells is computed in the direction normal to the wall until a substantially first tetrahedral cell. In addition, the computed temperature of the prism cell that is substantially adjacent to the first tetrahedral cell is declared as the T ref . Also, the HTC is computed using the obtained T ref .

Simulation apparatus and simulation method

A computer-readable medium stores a magnetic substrate simulation program causing a computer to execute a process that includes calculating an effective magnetic field for each area of an element in the magnetic substrate, when magnetization of each area changes and based on a magnetic field generated from magnetic energy in each area and a rate of change of magnetization working in a direction inhibiting change in the average magnetization of the areas; obtaining for each area and based on the calculated effective magnetic fields and magnetization of each area, changes in magnetization and calculating for each area, magnetization after the changes; judging based on magnetization of each area before and after the changes, whether magnetization in the element converges; and storing a combination of the average magnetization of the areas for which magnetization in the given element converges and a static magnetic field based on the average magnetization.

Pipeline flow modeling method

A method of modeling a segment of a pipeline transporting a product comprising defining within the segment a plurality of discrete cells, each disposed between knots, preparing a system of equations relating the conservations of mass, momentum and energy for each cell along with equations for the liquid phase flow area of cells with tight, slack and minimum area flow modes, providing data relating to the product and the location and elevation of the cells, sensing a plurality of conditions within known cells, solving the system of equations, initiating a re-stepping process by re-assessing the flow modes of each cell and re-setting flow modes for cells with unstable flow modes, and re-solving the system of equations using stable flow modes. An embodiment of the method includes excepting one or more cells from the re-stepping portion where a recurrent pattern of flow mode change is detected.

Computer simulation of physical processes

A computer-implemented method for simulating flow and acoustic interaction of a fluid with a porous medium includes simulating activity of a fluid in a first volume adjoining a second volume occupied by a porous medium, the activity of the fluid in the first volume being simulated so as to model movement of elements within the first volume and using a first model having a first set of parameters, simulating activity of the fluid in the second volume occupied by the porous medium, the activity in the second volume being simulated so as to model movement of elements within the second volume and using a second model having a second set of parameters and differing from the first model in a way that accounts for flow and acoustic properties of the porous medium, and simulating movement of elements between the first volume and the second volume at an interface between the first volume and the second volume.

Methods and systems for constructing and using a subterranean geomechanics model spanning local to zonal scale in complex geological environments

In an exemplary embodiment, a method and system is disclosed for developing a subterranean geomechanics model of a complex geological environment. The method can include estimating a pore pressure field, a stress field, a geomechanics property field, and a geological structure field from a geological concept model; geostatistically interpolating vectors and tensors from the estimated fields; and combining the results from the estimated fields and the geostatistically interpolated vectors and tensors to derive a geostatistical geomechanical model of the geological environment.

Method and system for reservoir modeling

A method is presented for modeling reservoir properties. The method includes constructing a coarse computational mesh for the reservoir. The coarse computational mesh comprises a plurality of cells. The method further includes determining a plurality of flows for each of the plurality of cells based on Dirichlet boundary conditions. Additionally, the method includes determining a solution to a coarse pressure equation for the reservoir based on the plurality of flows.

Method for the modeling of cryogenic spills and pool fires on the maritime transportation of liquefied natural gas (lng)

Mathematical modeling of the flow and spreading mechanics of a cryogenic fluid poured into the sea forming a pool, and the subsequent thermal plume coming from fires of turbulent diffusion, with conservative integral formulation considering the balance between the quantity poured from the ship and that which vaporizes in the pool. The contributions of the mechanisms of heat transfer at the interface between the substrate and the cryogenic film and the radiative feedback coming from the combustion in the lowest region of the thermal plume and the pool are taken into account. The modeling provides a scheme for the development of dimensionless scale parameters, allows correlation and extrapolation of the length or height of the visible flame with the slope of said flame, the emissive power of its surface, and mass flow rate of vaporization of the liquid fuel in the pool.

System and method for nesting a nonhydrostatic model in a hydrostatic model

System and method for adjusting the values of the prognostic variables near the interface between a nonhydrostatic, high resolution model embedded in a hydrostatic, coarser resolution model. The system and method condition the outer domain lateral boundary values to enforce conservation of volume when the variables are interpolated onto the inner domain grid. The conditioning adjusts the baroclinic normal velocities at the open boundaries before interpolation. The system and method also include a relaxation scheme which matches the values of the prognostic variables across a zone near the open boundaries of the submesoscale inner domain to prevent the development of discontinuities, reflections and perimeter currents at the periphery of the inner domain.

Variable Discretization Method For Flow Simulation On Complex Geological Models

A variable discretization method for general multiphase flow simulation in a producing hydrocarbon reservoir. For subsurface regions for which a regular or Voronoi computational mesh is suitable, a finite difference/finite volume method (“FDM”) is used to discretize numerical solution of the differential equations governing fluid flow ( 101 ). For subsurface regions with more complex geometries, a finite element method (“FEM”) is used. The invention combines FDM and FEM in a single computational framework ( 102 ). Mathematical coupling at interfaces between different discretization regions is accomplished by decomposing individual phase velocity into an averaged component and a correction term. The averaged velocity component may be determined from pressure and averaged capillary pressure and other properties based on the discretization method employed, while the velocity correction term may be computed using a multipoint flux approximation type method, which may be reduced to two-point flux approximation for simple grid and permeability fields.

Generating inviscid and viscous fluid-flow simulations over a surface using a fluid-flow mesh

Fluid-flow simulation over a computer-generated surface is generated using inviscid and viscous simulations. A fluid-flow mesh of fluid cells is obtained. At least one inviscid fluid property for the fluid cells is determined using an inviscid fluid simulation that does not simulate fluid viscous effects. A set of intersecting fluid cells that intersects the surface are identified. A surface mesh polygon of the surface mesh is identified for each intersecting fluid cell. At least one boundary-layer fluid property for each identified surface mesh polygon is determined using the at least one inviscid fluid property of the corresponding intersecting fluid cell and a boundary-layer simulation that simulates fluid viscous effects.

Analysis Supporting Method and Analysis Supporting Apparatus

To enable a response surface to be built with reduced analysis time and to thereby shorten time for objective value calculation using the response surface. Provided are a connection information generating unit ( 13 ) which divides data of a machine structure which is an analysis target into a plurality of parts via an input unit ( 30 ), and parameterizes a distribution of a physical quantity at a connection boundary thereof so as to be given and received as a parameter of a physical quantity of adjacent divided shape data, and a response surface generating unit ( 14 ) which parameterizes a response surface based on the parameterized distribution of the attribute value.

Method for simulating high-viscosity fluid

A computerized method for simulating a high-viscosity fluid in a chamber is disclosed, wherein a model of the fluid is set in a model of the chamber and a flow calculation is performed. In the flow calculation, with respect to a contact surface of a wall of the chamber model with which the fluid model contacts, a slip velocity of the fluid model is defined by specific equations.

Method of Reservoir Compartment Analysis Using Topological Structure In 3D Earth Model

There is provided a system and method for automatically identifying potential compartments of a reservoir based on the reservoirs geological structure. A method of identifying compartments of a reservoir structure includes obtaining structural data corresponding to a geological structure of a reservoir. The method also includes generating a topological net based on the structural data, the topological net comprising critical points and poly segments connecting the critical points. The method also includes identifying potential compartments of the reservoir structure based on the topological net. The method also includes identifying spill or break-over relationships among the potential compartments based on the topological net.

Methods and systems for accurate simulation of surfaces and interfaces of fcc metals

The Lennard-Jones parameters for metals, such as fee metals, have been developed which are suitable for the simulation of the metals, alloys, and interfaces with water, organic, inorganic, and biological molecules. The models are compatible with common materials-oriented and biomolecular force fields, and can thus be integrated in commercial simulation packages to extend their applicability to any metal-related systems.

System And Method For Fuzzy Concept Mapping, Voting Ontology Crowd Sourcing, And Technology Prediction

The invention provides a system and method for providing ttx-based categorization services and a categorized commonplace of shared information. Currency of the contents is improved by a process called conjuring/concretizing wherein users' thoughts are rapidly infused into the Map. As a new idea is sought, a goal is created for a search. After the goal idea is found, a ttx is concretized and categorized. The needs met by such a Map are prior art searching, competitive environmental scanning, competitive analysis study repository management and reuse, innovation gap analysis indication, novelty checking, technology value prediction, investment area indication and planning, and product technology comparison and feature planning.

System and methods using real-time predictive virtual 3d eye finite element modeling for simulation of ocular structure biomechanics

Disclosed are systems, devices and methods for performing simulations using a multi-component Finite Element Model (FEM) of ocular structures involved in ocular accommodation.

METHOD FOR DETERMINING DESIGN PARAMETERS OF A ROTOR BLADE

The invention relates to a method for determining design parameters () of a rotor blade () of a machine interacting with a fluid, in particular of a wind turbine, in which quality parameters () of the rotor blade are determined non-destructively, in particular by way of measurements, in which target parameters of the rotor blade () are determined, and in which the determined target parameters are predefined in an optimization process (), wherein the design parameters are varied in the optimization process in such a way that the target parameters are achieved, taking the determined quality parameters into consideration. In this way, it is possible to determine the parameters of a present rotor blade which can be non-destructively determined, so as to determine the parameters that cannot be determined non-destructively, or that are difficult to determine, by way of a computer model. 1. A method for determining design parameters of a rotor blade of a machine interacting with a fluid , in which quality parameters of the rotor blade are determined non-destructively , in which target parameters of the rotor blade are determined , and in which the determined target parameters are predefined in an optimization process , wherein the design parameters are varied in the optimization process in such a way that the target parameters are achieved , taking the determined quality parameters into consideration.2. The method according to claim 1 , wherein the quality parameters used in the optimization process includes at least one of the following parameters: infusion material used claim 1 , core material used claim 1 , fiber material used claim 1 , fiber volume content claim 1 , at least one outer dimensions of the rotor blade.3. The method according to claim 1 , wherein the design parameters determined during the optimization process includes at least one of the following parameters: type and thickness of material layers of a shell of the rotor blade claim 1 , reinforcement ...

COMPUTER-IMPLEMENTED METHOD FOR IDENTIFYING MECHANICAL PROPERTIES BY COUPLED CORRELATION OF IMAGES AND MECHANICAL MODELLING

A computer-implemented method for identifying mechanical parameters of an object subjected to mechanical stress is provided. The method comprises a step of acquiring, by an imaging means, images of the object taken before and during the application of the mechanical stress, three steps of calculating the effects due to the stress carried out either on the basis of the modeling of the recorded images or on the basis of a theoretical mechanical modeling of the stress, a step of defining a functional equal to the difference between the two models and a last step of minimizing said functional so that the experimental model is as close as possible to the theoretical mechanical model. Additional measurements make it possible to refine the method. 1. A computer-implemented method for identifying at least one mechanical parameter called “target parameter” of an object subjected to a mechanical stress , wherein said method comprises the following steps:Step 1: acquiring, by an imaging means, at least two images of the object taken before and during the application of the mechanical stress and measuring the scale factor of the object;{'sub': CIN', 'CIN', 'CIN', 'CIN, 'Step 2: calculating a first functional T(U) corresponding to the correlation of the digital images depending on the displacement field Urepresented using a first kinematic base, said displacement field Ubeing measured at any point of the object under stress between the images of the object under load and without load;'}{'sub': 'CAL', 'Step 3: calculating the calculated displacement field Uat any point of the object;'}{'sub': CAL', 'CAL', 'CAL, 'Step 4: calculating a second functional T(U,{p},{q}) on the basis of the calculated displacement field Urepresented using a second kinematic base, this second functional corresponding to the variational formulation of a mechanical model of the stress depending on the geometry of the object, the forces applied, the boundary conditions, at least the target parameter {p} and ...

Information processing apparatus and method and system for particle simulation

Technique includes acquiring first contact data of first time, associated with first particle in first region; calculating first position data on particles in the first region at second time, and receiving second position data on particles in second region at the second time; detecting second particle being in contact with the first particle and in the first region at the first time and being in the first region at the second time; copying, when the first and second particles are in contact at the second time, displacement of the second particle from the first contact data to second contact data of the second time; detecting third particle being in the first or second region at the second time and in contact with the first particle; and copying, when the third particle is listed in the first contact data, displacement of the third particle to the second contact data therefrom.

METHOD FOR DETERMINING FAVORABLE TIME WINDOW OF INFILL WELL IN UNCONVENTIONAL OIL AND GAS RESERVOIR

A method for determining a favorable time window of an infill well of an unconventional oil and gas reservoir, which comprises the following steps: S1, establishing a three-dimensional geological model with physical properties and geomechanical parameters; S2, establishing a natural fracture network model in combination with indoor core-logging-seismic monitoring; S3, calculating complex fractures in hydraulic fracturing of parent wells; S4, establishing an unconventional oil and gas reservoir model and calculating a current pore pressure field; S5, establishing a dynamic geomechanical model and calculating a dynamic geostress field; S6, calculating complex fractures in horizontal fractures of the infill well in different production times of the parent wells based on pre-stage complex fractures and the current geostress field; S7, analyzing a microseismic event barrier region and its dynamic changes in infill well fracturing; and S8, analyzing the productivity in different infill times, and determining an infill time window. 1. A method for determining a favorable time window of an infill well of an unconventional oil and gas reservoir , comprising the following steps:S1, establishing a three-dimensional geological model with a plurality of physical parameters and a plurality of geomechanical parameters, wherein horizon information in the three-dimensional geological model matches a real formation horizon, the plurality of physical parameters comprise at least a porosity, a permeability, a saturation and a plurality of sedimentary facies, and the plurality of geomechanical parameters comprise at least a Young's modulus, a Poisson's ratio, a lithology, a lithofacies and a three-way geostress;S2, identifying a plurality of microscopic natural fracture parameters by a rock core analysis, obtaining a three-dimensional configuration and a distribution of a plurality of fractures around a well through an analysis of imaging log data, obtaining a distribution of a ...

STRAIN DECOMPOSITION METHOD

Strain information may define strain of a material to stress. The strain of the material may be decomposed into classical strain, hysteretic strain, and residual strain. The classical strain, the hysteretic strain, and the residual strain may be used to facilitate modeling of the material. For example, the classical strain, the hysteretic strain, and the residual strain of a rock may be used to facilitate modeling of a subsurface region that includes the rock such as a reservoir simulation to predict hydrocarbon recovery. 1. A system for decomposing material strain , the system comprising: obtain strain information, the strain information defining strain of a material to stress;', 'decompose the strain of the material into classical strain, hysteretic strain, and residual strain; and', 'facilitate modeling of the material based on the classical strain, the hysteretic strain, and the residual strain., 'one or more physical processors configured by machine-readable instructions to2. The system of claim 1 , wherein the strain of the material to stress includes measurement of change in the strain of the material to change in stress.3. The system of claim 2 , wherein the change in stress includes one or more cycles of stress increase and stress decrease.4. The system of claim 1 , wherein facilitation of the modeling of the material based on the classical strain claim 1 , the hysteretic strain claim 1 , and the residual strain includes determination of an effective modulus of elasticity of the material for the modeling of the material based on the classical strain claim 1 , the hysteretic strain claim 1 , and the residual strain.5. The system of claim 1 , wherein the material includes a rock claim 1 , and the modeling of the material includes simulation of a reservoir that includes the rock to predict hydrocarbon recovery from the reservoir.6. The system of claim 5 , wherein the simulation of the reservoir that includes the rock to predict the hydrocarbon recovery from ...

Multi-level occupant movement simulation method and apparatus, and storage medium

The disclosure provides a multi-level occupant movement simulation method and apparatus. The method includes: establishing a multi-level architectural topology according to a structure of a building; obtaining a schedule of multiple occupants in a simulation experiment; obtaining a time period of stay of each occupant of the multiple occupants according to the schedule, and simulating, according to a preset simulation algorithm, the state transition position of each occupant in the multi-level architectural topology during the time period of stay; and calculating an operating energy consumption parameter of the building according to the state transition position.

DENSITY-FUNCTIONAL THEORY DETERMINATIONS USING A QUANTUM COMPUTING SYSTEM

Techniques facilitating density-functional theory determinations using a quantum computing system are provided. A system can comprise a first computing processor and a second computing processor. The first computing processor can generate a density-functional theory determination. The second computing processor can input a quantum density into the density-functional theory determination. The first computing processor can be operatively coupled to the second computing processor. Further, the first computing processor can be a classical computer and the second computing processor can be a quantum computer. 1. A circuit , comprising:a first computing processor that generates a density-functional theory determination; anda second computing processor that inputs a quantum density into the density-functional theory determination generated by the first computing processor, wherein the first computing processor is operatively coupled to the second computing processor.2. The circuit of claim 1 , wherein the first computing processor is a classical computing processor claim 1 , and wherein the second computing processor is a quantum computing processor.3. The circuit of claim 1 , wherein the density-functional theory determination is an active density matrix claim 1 , and wherein the second computing processor provides an updated active density matrix based on the quantum density.4. The circuit of claim 1 , wherein the second computing processor iteratively communicates an updated active density matrix to the first computing processor.5. The circuit of claim 4 , wherein the first computing processor reoptimizes orbitals of the density-functional theory determination.6. The circuit of claim 1 , wherein the first computing processor determines inactive short-range contributions resulting in the density-functional theory determination.7. The circuit of claim 1 , wherein the second computing processor determines long-range contributions based on the density-functional theory ...

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM

An information processing device includes a storage unit and a processing circuit. The storage unit is configured to store a first variable and a second variable. The processing circuit is configured to update the first variable based on the second variable, which corresponds to the first variable, weight the first variable with a first coefficient and add the weighted first variable to the corresponding second variable, calculate a problem term using the plurality of first variables, add the problem term to the second variable, calculate a first correction term including a product of a constraint term and a second coefficient, add the first correction term to the second variable, and increase absolute values of the first coefficient and the second coefficient depending on the number of updates. The constraint term is based on a constraint condition and has the first variable as an argument. 1. An information processing device comprising:a storage unit configured to store a first variable which is an element of a first vector and a second variable which is an element of a second vector; anda processing circuit configured to update the first variable based on the second variable, which corresponds to the first variable, weight the first variable with a first coefficient and add the weighted first variable to the corresponding second variable, calculate a problem term using a plurality of the first variables, add the problem term to the second variable, calculate a first correction term including a product of a constraint term and a second coefficient, add the first correction term to the second variable, and increase absolute values of the first coefficient and the second coefficient depending on a number of updates,wherein the constraint term is based on a constraint function representing a constraint condition and has the first variable as an argument.2. The information processing device according to claim 1 , whereinthe processing circuit is configured to ...

Fluid-solid coupling numerical simulation method for evaluating effect of wellbore strengthening in fractured formation

A fluid-solid coupling numerical simulation method for evaluating the effect of wellbore strengthening in a fractured formation includes steps of: establishing an elastic deformation equation of rocks around the wellbore; establishing and solving the fluid flow equations within fractures and plugging zone, respectively; substituting the discretized elastic deformation equation of the rocks around the borehole wall into the fluid flow equations of fractures to obtain a fluid-solid coupling equation set for wellbore strengthening in a fractured formation; and finally solving the fluid-solid coupling equation set; and substituting basic parameters into the fluid-solid coupling equation set, and simulating mechanical response characteristics, width evolution characteristics and flow distribution characteristics of plugged fractures under different parameter combinations. The present invention systematically considers the complex flow states of plugged fractures during wellbore strengthening, as well as the deformation and seepage characteristics plugging zone under multi-force coupling. 19-. (canceled)124. The fluid-solid coupling numerical simulation method claim 10 , as recited in claim 10 , wherein in the step S claim 10 , the basic parameters comprise in-situ stress parameters claim 10 , rock mechanics parameters claim 10 , fracture geometric parameters claim 10 , plugging zone geometric and permeability parameters claim 10 , a fluid viscosity and a displacement. The present invention claims priority under 35 U.S.C. 119(a-d) to CN 202010928300.1, filed Sep. 7, 2020.The present invention relates to a technical field of oil and gas exploration, and more particularly to a fluid-solid coupling numerical simulation method for evaluating an effect of wellbore strengthening in a fractured formation.With the global oil and gas exploration and development transiting to deep formations and unconventional oil and gas resources, the occurrence of drilling into broken formation, ...

Atomic Structure Optimization

Computer system provided with a control module for controlling ab initio atomic structure modules for simulating the behavior of structures and materials at multiple scales with different modules, for purposes of evaluating such structures and materials for use in integrated circuit devices. The computer system can simulate the behavior of structures and materials at atomic scale with parameters or a configuration that varies across iterative transformations.

3d object internal hollowing form lightweight method based on function representation

The present invention discloses a 3D shape internal hollowing form lightweight method based on function representation, and belongs to the field of computer-aided design. First, function representation is used and effective analytical calculation of shape optimization is explored; then, under the constraint of given external conditions, the stress structure design of a 3D object as well as the problems of center of mass, stand stability, tumbler design and buoyancy of an object are modeled by building an energy function model, and a corresponding discrete computation is given; finally, the above modeling problems are geometrically optimized to obtain an optimized internal shape of the object under given constraint conditions. The present invention greatly shortens the design and optimization cycles of this kind of cavity structures and can give theoretically optimal results.

Search and poll method for solving multi-fidelity optimization problems

A computer-implemented search and poll method can iteratively solve a multi-fidelity optimization problem including an objective function and any constraints. A search step of the method includes constructing and optimizing surrogates of the objective function and any constraints to identify a new set of trial points, and running lower fidelity simulations in ascending order to reduce a number of trial points in the new set. The search step further includes evaluating the reduced number of trial points with the objective function and any constraints using a high fidelity simulation.

Same-Band Combiner for Co-Sited Base Stations

The invention is a compact three-port signal combiner suitable for use in a base station having two different wireless systems. The combiner is designed as a four-port network, but one of the ports is terminated with a predetermined load, thus leaving three ports for connection to user equipment. A first port (A) receives from an antenna a first input signal comprising first and second receive bands and transmits to the antenna a first output signal comprising a transmit band. A second port (R), connected to the first wireless system, outputs to the first wireless system a second output signal comprising the first and second receive bands. A third port (T\R) outputs, to the second wireless system, a third output signal comprising the first and second receive bands and receives from the second wireless system a second input signal that is to be transmitted from the first port.

MESHLESS METHOD FOR SOLID MECHANICS SIMULATION, ELECTRONIC DEVICE, AND STORAGE MEDIUM

The present disclosure discloses a meshless method for solid mechanics simulation, which includes the following steps: first constructing a trial function and a test function by distributing points according to a geometric shape of a structure; then introducing numerical flux to correct the traditional Galerkin weak form; and finally substituting the trial and test functions into the weak form to construct a global stiffness matrix of the structure and a system of algebraic equations, and solving the system of algebraic equations to obtain displacement and stress of each point, thus completing simulation and analysis of the structure deformation and stress. 1. A meshless method for solid mechanics simulation , comprising the following steps:a step of constructing a trial function and a test function, wherein obtaining expressions of the trial function and the test function with point displacements in each subdomain according to points distributed in a structure;a step of developing a Galerkin weak form, wherein introducing numerical flux corrections to obtain a Galerkin weak form with the numerical flux corrections;a step of generating and solving a system of algebraic equations, wherein constructing a global stiffness matrix of the structure and a system of algebraic equations according to the expressions of the trial function and test function in each subdomain and the Galerkin weak form with the numerical flux corrections, and solving the system of algebraic equations to obtain a displacement of each point; anda step of calculating structural deformation and stress, wherein calculating the deformation and the stress of each position in the structure according to the displacement of each point, to complete simulation and analysis of the structure.2. The meshless method for solid mechanics simulation according to claim 1 , further comprising:a simulating step for according to a sequence of loads in chronological order, performing the step of constructing a trial ...

SYSTEM AND METHOD FOR MULTI-MATERIAL MESH GENERATION FROM FILL-FRACTION VOXEL DATA

Systems and methods for multi-material mesh generation from fill-fraction voxel model data are discussed. Voxel representations of model data are used to generate robust and accurate multi-material meshes. More particularly, a mesh generation pipeline in a virtual fabrication environment is described that robustly generates high-quality triangle surface and tetrahedral volume meshes from multi-material fill-fraction voxel data. Multi-material topology is accurately captured while preserving characteristic feature edges of the model. 1. A non-transitory medium holding computer-executable instructions for performing multi-material mesh generation in a virtual fabrication environment , the instructions when executed causing at least one computing device to:receive, in the virtual fabrication environment, fill-fraction voxel model data of a semiconductor device as an input domain;create, in the virtual fabrication environment, a feature graph using the fill-fraction voxel model data; andgenerate, in the virtual fabrication environment, a multi-material mesh for the semiconductor device, the generating of the multi-material mesh performing a Delaunay triangulation using the feature graph and material identifiers from the fill-fraction voxel model data.2. The medium of claim 1 , wherein the instructions when executed further cause the at least one computing device to:receive user-defined refinement settings for the Delaunay triangulation; andperform the Delaunay triangulation iteratively until the user-defined meshing criteria are satisfied to optimize the multi-material mesh.3. The medium of claim 1 , wherein the instructions when executed further cause the at least one computing device to:perform material interface reconstruction on the fill-fraction voxel model data to extract interface cells and to generate an initial feature graph.4. The medium of claim 3 , wherein the instructions when executed further cause the at least one computing device to:extract multi- ...

Aircraft component qualification system and process for target based inventory qualification

The system then identifies as-manufactured parameters of a second engine component, and applies the as-manufactured parameters of the second engine component to each of the predicted response models, thereby generating a predicted response output from each of the predicted response models. An optimum predicted response from each of the generated predicted response models is identified and the engine type or engine assembly that corresponds with the optimum predicted response is associated with a unique part identifier of the second engine component.

Low-loss tunable radio frequency filter

A method of constructing an RF filter comprises designing an RF filter that includes a plurality of resonant elements disposed, a plurality of non-resonant elements coupling the resonant elements together to form a stop band having a plurality of transmission zeroes corresponding to respective frequencies of the resonant elements, and a sub-band between the transmission zeroes. The non-resonant elements comprise a variable non-resonant element for selectively introducing a reflection zero within the stop band to create a pass band in the sub-band. The method further comprises changing the order in which the resonant elements are disposed along the signal transmission path to create a plurality of filter solutions, computing a performance parameter for each of the filter solutions, comparing the performance parameters to each other, selecting one of the filter solutions based on the comparison of the computed performance parameters, and constructing the RF filter using the selected filter solution.

SYSTEMS AND METHODS FOR IDENTIFYING SUBSURFACE FEATURES AS A FUNCTION OF POSITION IN A SUBSURFACE VOLUME OF INTEREST

Systems and methods are disclosed for identifying subsurface features as a function of position in a subsurface volume of interest. Exemplary implementations may include obtaining target subsurface data; obtaining a conditioned subsurface feature model; applying the conditioned subsurface feature model to the target subsurface data, which may include generating convoluted target subsurface data by convoluting the target subsurface data; generating target subsurface feature map layers by applying filters to the convoluted target subsurface data; detecting potential target subsurface features in the target subsurface feature map layers; masking the target subsurface features; and estimating target subsurface feature data by linking the masked subsurface features to the target subsurface feature data. 1. A computer-implemented method for identifying subsurface features as a function of position in a subsurface volume of interest , the method being implemented in a computer system that comprises a physical computer processor and a non-transitory storage medium , the method comprising:obtaining, from the non-transitory storage medium, target subsurface data comprising a subsurface energy value;obtaining, from the non-transitory storage medium, a conditioned subsurface feature model comprising a conditioned subsurface feature extraction sub-model, a conditioned subsurface object detection sub-model, and multiple conditioned network sub-models, the conditioned subsurface feature model having been generated by applying an initial subsurface feature model to training subsurface data and training subsurface feature data, wherein the training subsurface data comprises subsurface energy values, and wherein the training subsurface feature data comprises the training structural identification values defined by structural identification parameters and corresponding training categorization values defined by categorization parameters and one of the training structural identification ...

Pore-scale, multi-component, multi-phase fluid model and method

A method for calculating a fluid flow in a given underground medium, the method including receiving initial molar densities for components of the fluid; introducing a scalar auxiliary variable r into an inhomogeneous Helmholtz free energy equation F with a Peng-Robinson equation of state; calculating a molar density ni of each component of the fluid based on a discretized scalar auxiliary variable rk; and determining the flow of the fluid based on the calculated molar densities ni.

RECONSTRUCTION OF A TOPOLOGY OF AN ELECTRICAL DISTRIBUTION NETWORK

The disclosed method reconstructs a topology of an electrical distribution network. An ohmic matrix model is generated as a function of consumption measurements provided by smart meters in the network. A tree table of nodes to which the smart meters are connected is defined. A branch in exploration is defined in the table and the nodes of the branch meeting preestablished relations are entered in the table as a function of connection values derived from resistive quantities in the matrix model. One of the relations determines a junction of the branch in exploration with a branch already explored connectable to a root to which a distribution transformer of the distribution network is connected. The topology is reconstructed by iteratively proceeding with sequences of decreasing values derived from the resistive quantities. 1. Computer-implemented method for reconstructing a topology of an electrical distribution network having nodes to which smart meters are connected , the method comprising the steps of:(i) generating an ohmic matrix model of the distribution network as a function of consumption measurements provided by the smart meters, the ohmic matrix model having matrix terms indicative of resistive quantities between the nodes and a root to which a distribution transformer of the distribution network is connected;(ii) defining a tree table of the nodes; and (a) defining a new branch as branch in exploration in the tree table;', '(b) entering the node having the highest resistive quantity as terminal node of the branch in exploration in the tree table; and', '(c) entering in the tree table, in successive upstream positions from one another towards the root, all the nodes other than the terminal node meeting preestablished decision criteria as a function of connection values derived from the resistive quantities and, as other nodes are progressively entered for the branch in exploration, with said other nodes, one of the preestablished decision criteria ...

EFFICIENT METHOD FOR REPRESENTATION AND OPTIMIZATION OF POROUS STRUCTURES

An efficient method for representation and optimization of porous structures belongs to the field of computer aided design. Firstly, a representation method of a multi-scale porous structure described by a function is provided. Based on the function representation, an optimization frame is designed. Then, an optimization problem model is established by taking structural energy minimization as a goal and taking a volume and a gradient as constraints. Finally, topological optimization is conducted firstly, and then geometric optimization is conducted. The topology and the thickness of the porous structure are optimized to obtain an optimization model filled with the porous structure. The present invention completely represents, analyzes, optimizes and stores the porous structure by functions, which greatly reduces the calculation complexity and greatly shortens the design and optimization period. Moreover, the present invention can provide an optimization model with strong structural hardness and stiffness under the volume constraint. The structure is suitable for frequently-used 3D printing manufacturing technologies. The internal structure does not need additional support in the printing process, which can save printing time and printing material. 1(I) multi-scale porous shell structure {'br': None, 'sub': 'P', 'i': r', 't', 'r', 'x', 't', 'r', 'y', 't', 'r', 'z, '{tilde over (φ)}()=cos(2π·()·)+cos(2π·()·)+cos(2π·()·)\u2003\u2003(1)'}, 'firstly, establishing a multi-scale porous surface{'sup': '3', 'wherein r=(x, y, z)∈Ris a point in a space, and t(r)>0 is a continuous periodic distribution function, which controls a continuous change of a hole size;'}then, constructing a multi-scale porous shell structure with thickness: using a closed region determined by two different isosurfaces with a same periodic distribution as an inner space of a porous shell, defining:. An efficient method for representation and optimization of porous structures, comprising the following ...

Depth peeling based nuclear radiation shield calculation grid generation method and system

A depth peeling based nuclear radiation shield computational mesh generation method and a depth peeling based nuclear radiation shield computational mesh generation system are provided. The method includes: generating an outline pixel matrix of geometries with the depth peeling technique, performing conversion in an image space to obtain outline meshes of the geometries; then obtaining internal meshes of the geometries based on the outline meshes by a scanning line method, so as to fast generate the nuclear radiation shield computational meshes.

Techniques for determining coagulation results

An automated method for determining a coagulation result of a biological sample is presented. The method includes obtaining a time series representing measurement data of a sample. The time series spans a period in which a clotting reaction is supposed to take place. The method includes obtaining a global model function configured to model measurement data of a sample in which a clotting reaction takes place. The global model function is configured to model the measurement data as a sigmoidal shape with at least one inflection point. The absolute value of the maximum curvature of the sigmoidal shape is larger on one side of the at least one inflection point than on the other side. The method includes fitting the model function to the time series representing measurement data to obtain a fitted model function and determining a coagulation result of the sample based on the fitted model function.

KINEMATIC MODELING OF BIOCHEMICAL PATHWAYS

The present disclosure relates to general and scalable techniques for modeling in silico the kinetics of systems of connected biochemical reactions. Particularly, aspects of the present disclosure are directed to deconstructing a reaction into a plurality of component steps, translating each component step into a set of rate equations to obtain a standard mathematical construct or model representing each component step, numerically integrating across the standard mathematical constructs or models using a system of ordinary differential equations to determine a contribution of each component step to a rate of change of molecules within reaction, and deriving a in silico behavior of a system utilizing the reaction based on the contribution of each component step to the rate of change of the molecules within the reaction. The standard mathematical constructs or models may be parameterized based on an energy profile for the reaction inferred from machine-learning approaches. 1. A system comprising:one or more data processors; anda non-transitory computer readable storage medium containing instructions which, when executed on the one or more data processors, cause the one or more data processors to perform actions including:obtaining an initial energy profile for a reaction, wherein the reaction is part of a pathway or process in a system to be modeled;deriving forward and reverse rate constants for each component step of a plurality of component steps representing the reaction based on the initial energy profile, wherein each component step is represented by a standard mathematical construct comprising a set of forward and reverse rate equations that apply the forward and reverse rate constants to one or more concentrations of molecules, respectively;deriving a in silico behavior of the reaction based on the contribution of each component step of the plurality of component steps to a rate of change of the molecules within the reaction, wherein the contribution of each ...

SYSTEMS AND METHODS FOR MACHINE LEARNING

A hybrid computer comprising a quantum processor can be operated to perform a scalable comparison of high-entropy samplers. Performing a scalable comparison of high-entropy samplers can include comparing entropy and KL divergence of post-processed samplers. A hybrid computer comprising a quantum processor generates samples for machine learning. The quantum processor is trained by matching data statistics to statistics of the quantum processor. The quantum processor is tuned to match moments of the data. 1. A method of operation of a computational system comprising at least one processor , the method comprising:receiving information defining a target distribution and a sampling process by the at least one processor;receiving a plurality of samples using the sampling process by the at least one processor;generating a sampling distribution based on the plurality of samples by the at least one processor; determining a first and a second subset of variables; and', 'expressing a post-processed distribution in a mixture model comprising the sampling distribution and an analytic form for conditional resampling on the first and the second subset of variables;, 'generating a post-processed distribution from the plurality of samples by the at least one processor, wherein generating a post-processed distribution includesevaluating a Kullback-Leibler (KL) divergence from the target distribution to the post-processed distribution by the at least one processor; andcomparing the sampling distribution to the target distribution based at least in part on the KL divergence by the at least one processor.2. The method of wherein receiving a plurality of samples using the sampling process by the at least one processor includes receiving a plurality of samples from an analog processor.3. The method of wherein receiving a plurality of samples from an analog processor includes receiving a plurality of samples from a quantum processor.4. The method of wherein receiving information defining a ...

Motor selection device and motor selection method

A motor selection device is equipped with a speed calculation unit that calculates an average speed from a speed waveform of a motor that drives a predetermined driven object, the speed waveform being obtained when the driven object is made to perform a prescribed operation, a current calculation unit that calculates a root mean square current from a current waveform of the motor that drives the driven object, the current waveform being obtained when the driven object is made to perform the prescribed operation, a storage unit that stores a motor characteristic corresponding to a speed of a target motor serving as an object to be selected, and a determination unit that determines whether or not the prescribed operation by the target motor is possible, using the motor characteristic corresponding to the average speed, and the root mean square current.

HIERARCHICAL CASCADING IN TWO-DIMENSIONAL FINITE ELEMENT METHOD SIMULATION OF ACOUSTIC WAVE FILTER DEVICES

A method of analyzing a microwave acoustic wave (AW) structure comprises defining a physical model of the AW structure, partitioning the physical model into a plurality of unit blocks, identifying at least one core block within the plurality of original unit blocks, computing characteristics of each of the at least one core block, deriving characteristics for each of the original unit blocks from the computed characteristics of the core block(s), combining the original unit blocks into a single block having computed characteristics derived from the characteristics of the unit blocks, such that the single block subsumes the plurality of original unit blocks, and deriving at least one electrical response of the physical model at least partially from the computed characteristics of the single block. 124-. (canceled)25. A method , comprising:hierarchically cascading, by a computing system, sets of adjacent unit blocks of a physical model of a microwave acoustic wave (AW) structure partitioned into a plurality of unit blocks into a combined single block having characteristics based on characteristics of a first unit block of the plurality of unit blocks; andoptimizing, by the computing system, the AW structure to provide an optimized design based on a comparison of a frequency response of the combined single block to a set of frequency response requirements of the AW structure, the optimized design serving as an input to a manufacturing process.26. The method of claim 25 , further comprising:determining, by the computing system, the characteristics of the first unit block; anddetermining, by the computing system from the characteristics of the first unit block, characteristics of the unit blocks of the first plurality of unit blocks other than the first unit block.27. The method of claim 26 , wherein determining characteristics of the unit blocks of the first plurality of unit blocks other than the first unit block further comprises:deriving, by the computing system, ...

System modeling, control and optimization

A method for modeling an operation of a system that may include a disturbance rejection model that is configured to generate a predicted value for a system output at a future time. The disturbance rejection model may include a neural network for mapping system inputs to the system output. The method may include the steps of: training the disturbance rejection model per a training dataset; and calculating a confidence metric for the disturbance rejection model. The confidence metric is configured to indicate a probability that a predicted sign of a gain in the system output at the future time made by the disturbance rejection model is correct.

Dynamic collar swage conformance checking based on swage tool parameters

Systems and methods are provided for inspecting fastener installation. One embodiment is a method for inspecting installation of a fastener. The method includes determining an initial distance between a nose of a swage tool and an Inner Mold Line (IML) of a part, operating the swage tool to swage a collar onto a fastener that protrudes through the IML of the part, determining a terminal distance of the nose to the IML during swaging, prior to a pintail of the fastener breaking, and arriving at a conclusion indicating a state of a fastener installation, based on the terminal distance.

COMPUTER-IMPLEMENTED METHOD FOR LOW-LATENCY GENERATION AND INPUT OF SENSOR DATA INTO A CONTROL UNIT OR INTO CONTROL UNIT NETWORKS

A method for low-latency generation and input of sensor data for control units or control unit networks includes: computing, by a simulator system or device, environmental data sets at a simulation frequency using an environment model of a virtual environment scene, wherein each environmental data set is associated with a respective point in time in an overall simulation time at which point in time the respective environment data set is available for further processing; and executing, by the simulator system or device or by at least one additional system or device, at least one sensor simulation model, wherein the at least one sensor simulation model generates sensor data sets at a sampling frequency, based on the environmental data sets, for further processing by at least one control unit, wherein each sensor data set is associated with a respective start time and respective time of completion in the overall simulation time. 1. A method for low-latency generation and input of sensor data for control units or control unit networks , comprising:computing, by a simulator system or device, environmental data sets at a simulation frequency using an environment model of a virtual environment scene, wherein each environmental data set is associated with a respective point in time in an overall simulation time at which point in time the respective environment data set is available for further processing; andexecuting, by the simulator system or device or by at least one additional system or device, at least one sensor simulation model, wherein the at least one sensor simulation model generates sensor data sets at a sampling frequency, based on the environmental data sets, for further processing by at least one control unit, wherein each sensor data set is associated with a respective start time and a respective time of completion in the overall simulation time, and wherein a respective sensor data set is stored in an output memory of the simulator system or device or of ...

PREDICTION MODEL FOR LIP STICKING FORCE OF CIGARETTE TIPPING PAPER, CONSTRUCTION METHOD AND PREDICTION METHOD THEREOF

The present invention relates to a prediction model for a lip sticking force of a cigarette tipping paper, a construction method and a prediction method thereof, which belongs to the technical field of analysis and detection. In the method, the stepwise regression analysis is performed on the lip sticking force and values of the dynamic friction coefficient and the grammage of the cigarette tipping paper to obtain a model for predicting the lip sticking force of the cigarette tipping paper. When checking the accuracy of the model, it is found that the predicted value and the measured value basically fall near the 1:1 line, Rindex is 0.99, and the normalized root mean square error (nRMSE) is 2.64%. The present invention provides a method capable of quickly and simply quantifying a sticking force of the cigarette tipper paper to lips 1. (canceled)2. (canceled)3. A construction method of a prediction model for a lip sticking force of a cigarette tipping paper , wherein{'sub': lip sticking force', 'friction coefficient, 'the prediction model is Y=0.205+1.038×Mwhen a thickness of the cigarette tipping paper belongs to a range of 0.069 mm-0.112 mm;'}{'sub': lip sticking force', 'friction coefficient', 'grammage, 'the prediction model is Y=−0.335+1.181×M×Dwhen the thickness of the cigarette tipping paper does not belong to the range of 0.069 mm-0.112 mm;'}{'sub': lip sticking force', 'friction coefficient', 'grammage, 'wherein Yis a predicted lit sticking force of the cigarette tipping paper; Mis a dynamic friction coefficient of the cigarette tipping paper; and Dis a grammage of the cigarette tipping paper, and indicates gram weight per unit area;'}the construction method comprises:step (1), using a tester to measure a sticking force, wherein the sticking force is between printing surfaces of different tipping paper and an artificial mouth skin that are bonded together through artificial saliva, and calculating the sticking force per unit area as a measured lip sticking ...

MACHINE LEARNING PLATFORM FOR GENERATING RISK MODELS

The disclosed embodiments concern methods, apparatus, systems, and computer program products for developing polygenic risk score (PRS) models with improved performance across different ethnicities and for different target phenotypes. 1. A method for generating a cross-traits polygenic risk score (PRS) model , comprising:selecting a phenotype of interest having a set of summary statistics from a genome wide association study (GWAS);selecting a plurality of candidate phenotypes, each candidate phenotype having a set of summary statistics from a corresponding GWAS for that candidate phenotype;determining a set of genetic correlations between the phenotype of interest and each candidate phenotype of the plurality of candidate phenotypes;filtering the plurality of candidate phenotypes based on the set of genetic correlations to assemble a cohort of filtered candidate phenotypes;retrieving a plurality of PRS models, each PRS model corresponding to a phenotype of the cohort of filtered candidate phenotypes; anddetermining the cross-traits PRS model based at least in part on the plurality of PRS models.2. The method of claim 1 , wherein the set of genetic correlations comprises p-values between the phenotype of interest and each candidate phenotype claim 1 , and filtering the plurality of candidate phenotypes based on the set of genetic correlations is further based on a p-value threshold.3. The method of claim 2 , wherein the p-value threshold is less than about 1e-3.4. The method of claim 1 , further comprising determining a genetic correlation between the phenotype of interest and a candidate phenotype based on the set of summary statistics for the phenotype of interest and the set of summary statistics for the candidate phenotype.5. The method of claim 1 , wherein the set of summary statistics from a GWAS comprise a p-value for each of a plurality of single nucleotide polymorphism (SNP) sites.6. The method of claim 5 , further comprising determining a genetic ...

METHOD FOR ANALYZING THE RESOURCE CONSUMPTION OF A COMPUTING INFRASTRUCTURE, ALERT AND SIZING

The invention relates to a method and a device for analyzing a consumption of resources in a computing infrastructure for the prediction of a resource consumption anomaly on a computing device, said method comprising:—a step () of determining a plurality of resource consumption modeling functions (MF); 1133. A method () for analyzing a consumption of resources in a computing infrastructure , said computing infrastructure comprising a plurality of computing devices () , for the prediction of a resource consumption anomaly on a computing device () , said method comprising:{'b': '200', 'a step () of determining, for a given period, a plurality of resource consumption modeling functions (MF), each of said functions modeling the temporal evolution in the consumption of a resource for a time interval of the period;'}{'b': '230', 'a step () of proximity searching between modeling functions (MF), said proximity search being carried out between modeling functions (MF) of the same resource and of different data periods;'}{'b': '300', 'a step () of determining a correlation between said resource consumption modeling functions (MF), said correlation determination step comprising the calculation of at least one correlation between modeling functions (MF), preferably for different time intervals;'}{'b': '400', 'a step () of measuring a resource consumption, said step comprising a measurement of a consumption value of a first resource; and'}{'b': '500', 'a step () of predicting the resource consumption of the computing infrastructure, said prediction step comprising a calculation of a value of future consumption of a resource to be predicted from the consumption value of the first resource and from a previously calculated correlation between modeling functions (MF), said previously calculated correlation then corresponding to a correlation between a modeling function of the first resource and a modeling function of the resource to be predicted.'}21210. The analysis method () ...

LOW NOISE PORT TUBE

One embodiment provides a method that includes receiving, by a processor, port tube design parameters for a port tube for a speaker device. The method further includes predicting, by the processor, pressure and pressure gradients by performing a numerical simulation process based on the port tube design parameters. The processor further determines a measure of shear within the port tube and at exits of the port tube based on the predicted pressure and pressure gradients. The method additionally includes updating, by the processor, the port tube design parameters and repeating performing the numerical simulation and the determining of the measure of shear until a minimized shear measure result is determined. 1. A method comprising:receiving, by a processor, port tube design parameters for a port tube for a speaker device;predicting, by the processor, pressure and pressure gradients by performing a numerical simulation process based on the port tube design parameters;determining, by the processor, a measure of shear within the port tube and at exits of the port tube based on the predicted pressure and pressure gradients; andupdating, by the processor, the port tube design parameters and repeating performing the numerical simulation process and the determining of the measure of shear until a minimized shear measure result is determined.2. The method of claim 1 , wherein the port tube design parameters define a shape of the port tube.3. The method of claim 2 , wherein the port tube design parameters comprise one or more of port length claim 2 , minimal cross-sectional area claim 2 , flare rate claim 2 , maximal cross-sectional area or parameterization.4. The method of claim 1 , wherein the measure of shear is based on determining a difference between at least two points between a graph of air velocities at a center of the port tube and a graph of air velocities adjacent walls of the port tube.5. The method of claim 1 , wherein the measure of shear is based on ...

METHOD AND DEVICE FOR MODELLING AND FATIGUE STRENGTH ASSESSMENT OF WELD SEAMS BETWEEN MECHANICAL PARTS

A method for modelling and fatigue strength assessment of weld seams between mechanical parts includes providing a finite element model for an assembly, in which a first finite element mesh for a mechanical part, a second mesh for a second mechanical part, and a third mesh for a weld seam joining the mechanical parts comprising a number of notches are generated. The third mesh has fewer than 20 finite elements in cross-section, the notches are modelled sharp-edged, and the distribution of the finite elements follows a defined mesh pattern. The method includes calculating the finite element model. Result values of the finite elements and nodes are provided from the defined mesh pattern of the third mesh. The method includes applying an effective notch stress prediction algorithm matched to the defined mesh pattern to predict occurring notch stresses in the notches using the provided result values as input parameters. 1. Computer-implemented method for model generation and fatigue strength assessment of weld seams between mechanical parts of an assembly with the aid of a finite element method , characterized by:a) providing a finite element model for the assembly, in which a first finite element mesh for a mechanical part, a separate second finite element mesh for a second mechanical part and a third finite element mesh for a weld seam joining the first mechanical part and the second mechanical part comprising a number of notches are generated, wherein the third finite element mesh has a number of less than 20 finite elements in cross-section, the notches of the weld seam are modelled sharp-edged and the distribution of the finite elements follows a defined mesh pattern,b) calculating the finite element model, wherein result values of the finite elements and nodes are provided from the defined mesh pattern of the third finite element mesh for the weld seam, andc) applying an effective notch stress prediction algorithm matched to the defined mesh pattern of the third ...

Similar Principle Analysis Method of Input and Output Characteristics for Fuel Cell

Analysis method of fuel cell input and output characteristics, which utilizes π theorem and principle of similarity to carry out dimensional analysis and equation analysis for model parameters and governing equations respectively for a given proton exchange membrane fuel cell theoretical model, includes the steps: determine model parameters and dimensions of each parameter, and filter out basic parameters for dimensional analysis; use π theorem to perform dimensional analysis to obtain dimensionless numbers; use principle of similarity to analyze model governing equations to obtain dimensionless numbers; compare the two sets of dimensionless numbers to determine the dimensionless number of the fuel cell model under study; define dimensionless voltage and dimensionless current to serve as the ordinate and abscissa of the dimensionless polarization curve, then any point on the dimensionless polarization curve represents a set of similar working conditions and the number and time of experiment or simulation can be greatly reduced.

Induction motor flux and torque control with rotor flux estimation

A rotor flux estimator is provided. The rotor flux estimator includes an estimation module that generates a first rotor flux vector expressed in a phase voltage reference frame and a second rotor flux vector expressed in the phase voltage reference frame, from a stator voltage vector expressed in a phase voltage reference frame, a rotational speed of a rotor, and a stator current vector expressed in the phase voltage reference frame. The estimation module includes at least one processor and the estimation module includes a rotor flux current model and a rotor flux voltage model.

Integrated solver for fluid driven fracture and fragmentation

An integrated solver may be used for both a fluid phase and a solid phase. The integrated solver may use constitutive equations for the fluid phase and the solid phase, and calculate the stress in the fluid and solid using the same integration point. The integrated solver may also calculate other state variables using the same integration point.

Calculating thicknesses of applied coating material

Systems and a method for calculating thickness values of a coating material applied by a coating gun on object surfaces in industrial processes include measuring, on real test surfaces, the thickness values of coating material samples applied by the coating gun on the real test surfaces. The measured thickness values are used to generate 3D virtual objects modeling the coating dispersions of the coating gun at given angles formed between the coating gun and the test surface. The thickness values of the coating material applied on the surface of a simulated object by a simulated gun at a certain angle are calculated by detecting the collision between the 3D virtual object mounted on the simulated coating gun and surface elements of the simulated object surface.

Techniques for warm starting finite element analyses with deep neural networks

A simulation application receives simulation parameters associated with a simulation to be generated. The simulation parameters include geometry associated with the simulation and corresponding boundary conditions. The simulation engine processes the simulation parameters and then, using a neural network, generates a solution estimate. Based on the estimated solution, the simulation engine then executes a finite element analysis solver using the solution estimate as a starting point. The FEA solver iterates until a converged solution is reached. The converged solution is then provided to the end-user.

METHOD FOR CALCULATING TEMPERATURE-DEPENDENT MID-SPAN VERTICAL DISPLACEMENT OF GIRDER BRIDGE

A method for calculating a temperature-dependent mid-span vertical displacement of a girder bridge includes: setting a joint rotation of a main girder at each support as an unknown quantity, and establishing an equation according to a bending moment equilibrium condition at the joint; then introducing a sequence to establish a quantitative relationship between each unknown quantity; substituting the relationship into the equation, to obtain an analytical formula for a rotation at each joint; establishing an analytical formula for a bending moment at each joint through a principle of superposition; and finally, establishing an analytical formula for a mid-span vertical displacement of each span girder through a principle of virtual work. This method provides an analytical formula with exact solutions for prismatic girder bridges which have equal side spans yet have any number of spans. 2. The method according to claim 1 , whereinthe girder bridge is a straight bridge, and the girder bridge has a constant cross section and made of an identical material;the temperature difference between the top surface and the bottom surface of the main girder is equal everywhere along the girder bridge;if the total number of the plurality of spans is the odd number, a middlemost span is the main span and the plurality of spans excluding the middlemost span are the side spans;if the total number of the plurality of spans is the even number, two middlemost spans are the main spans and the plurality of spans excluding the two middlemost spans are the side spans; andthe side spans of the girder bridge each have an identical length. This application is based upon and claims priority to Chinese Patent Application No. 202010814388.4, filed on Aug. 13, 2020, the entire contents of which are incorporated herein by reference.The disclosure relates to the technical field of structural analysis and monitoring of bridges, in particular to a method for calculating a temperature-dependent mid-span ...

Methods and Apparatus for Quantitative Flow Analysis

Method for quantitative flow analysis of a tree of conduits perfusing an organ from at least two bi-dimensional images, the method comprising the following steps: a) making a 3 D reconstruction of at least part of the tree from said at least two bi-dimensional images; b) identifying a segment of interest within the 3 D reconstruction either automatically or semi-automatically upon user input; c) making calculations based on the 3 D reconstruction to determine geometrical features of the conduits such as diameters, lengths, curvatures, centrelines or the like; d) receiving indication from the user to input a multi-scale functional model of the tree to be considered for the flow analysis and to input the location of the segment of interest within such model; e) adjusting the part of the functional model related to the segment of interest using geometrical features of the 3 D reconstruction; f) performing quantitative flow analysis based on the functional model so obtained. A corresponding apparatus and computer program are also disclosed.

Break prediction method, break prediction device, program, recording medium, and break discernment standard calculation method

A break prediction method according to the present invention predicts a break of a joint portion of an object to be analyzed including a pair of members joined to each other by using a finite element method, and includes a first step of acquiring at least an element size of a base material portion, from among parameters set in an element model for the object to be analyzed; a second step of calculating, as a break discernment standard, a break limit moment defined by a function including the element size of the base material portion as a variable; and a third step of discerning whether the moment applied to the joint portion in a deformation analysis of the element model for the object to be analyzed exceeds the break limit moment, and outputting the result of the discernment as a break prediction result for the joint portion.

EVALUATING ANISOTROPIC EFFECTIVE PERMEABILITY IN ROCK FORMATIONS HAVING NATURAL FRACTURE NETWORKS

A fracture simulation system is provided to determine anisotropic effective permeability of rock formations having natural fractures therein. 1. A computer-implemented method to determine anisotropic effective permeability of a hydrocarbon-bearing rock formation , the method comprising:using formation data to generate a model of a natural fracture network (“NFN”) within a rock formation, wherein a distribution of fractures within the NFN is determined using the formation data;generating a poroelasticity model of the rock formation;{'claim-text': ['reservoir fluid flow and rock deformation of the rock formation;', 'fluid flow within fractures of the NFN;', 'fluid exchange between the NFN and rock formation; and'], '#text': 'using the poroelasticity model to simulate:'}using the simulation to obtain a pressure depletion profile of the rock formation; andusing the pressure depletion profile to determine the anisotropic effective permeability of the rock formation.2. The method of claim 1 , wherein the distribution of the natural fractures comprises a density or orientation of the natural fractures.3. The method of claim 1 , wherein the poroelasticity model defines an effective stress tensor of the rock formation.4. The method of claim 3 , wherein the effective stress tensor is calculated using an elasticity tensor of the rock formation claim 3 , strain tensor of the rock formation claim 3 , pore pressure of the rock formation claim 3 , and a coefficient representing a coupling between effective stress and the pore pressure.5. The method of claim 1 , wherein the poroelasticity model is used to simulate the fractures of the NFN as a function of effective stress applied to surfaces of the natural fractures.6. The method of claim 1 , wherein the anisotropic effective permeability is used to plan claim 1 , perform claim 1 , or analyze a wellbore operation.7. The method of claim 1 , wherein the anisotropic effective permeability is used to predict productivity of a well.8. A ...

METHOD FOR SOLVING COMPLETE FLUTTER TERMINATION PARAMETER BASED ON DOUBLE MASS BODIES OF NON-FIXED CONSTRAINT

The present invention proposes a method for solving a complete flutter termination parameter based on double mass bodies of non-fixed constraint, including the following steps: obtain model input parameters at a flutter termination moment t0, wherein the model input parameters includes the mass ratio of the double mass bodies as well as position coordinates, a speed, an acceleration speed and a restoration coefficient of each mass body, the mass ratio and the restoration coefficient are both constants; establish a first solution model to obtain a parameter at a flutter termination moment t; establish a second solution model to obtain position parameters of the double mass bodies at the flutter termination moment t; establish a third solution model to obtain speed parameters of the double mass bodies at the flutter termination moment taccording to the third solution model and the model input parameters. The present invention continues to complete numerical simulation directly from a certain flutter moment, can skip over a flutter process, and directly obtain the flutter termination moment and the positions and speeds of the double collision mass bodies at the flutter termination moment, thereby improving calculation accuracy and saving a lot of calculation time. 1. A method for solving a complete flutter termination parameter based on double mass bodies of non-fixed constraint , comprising the following steps:{'b': '1', 'sub': '0', '#text': 'Step S: obtain model input parameters at a flutter termination moment t, wherein the model input parameters comprises the mass ratio of the double mass bodies as well as position coordinates, a speed, an acceleration speed and a restoration coefficient of each mass body, and the mass ratio and the restoration coefficient are both constants;'}{'b': '2', 'sub': '∞', '#text': 'Step S: establish a first solution model to obtain a parameter at a flutter termination moment taccording to the first solution model and the model input ...

Systems and methods for hydraulic fracture treatment and earth engineering for production

Provided herein are systems and methods for hydraulic fracturing in earth. Systems may comprise a first well comprising sensors configured to collect sensor data at the first well. The calibration data may comprise sensor data, hydraulic fracture treatment conditions of the first well, geological data from an area containing the first well, or production date of oil or gas from the first well. The calibration data may be analyzed with the aid of one or more processors to generate an integrated 3-D model of hydraulic fracturing and fluid flow in the wellbore and reservoir of the first well. The system may further comprise a second well configured to operate according to simulation data generated from the integrated 3-D model of the first well and hydraulic fracture treatment conditions received from a user device. The user device may be configured to communicate with a server comprising the one or more processors.

System, Method and Computer Readable Medium for Modeling Biobehavioral Rhythms from Mobile and Wearable Data Streams

A technique for providing biobehavioral rhythm models that generate a series of characteristic features which are further used for measuring stability in biobehavioral rhythms and to predict different outcomes such as health status through a machine learning component. A computational framework is provided for modeling biobehavioral rhythms from mobile and wearable data streams that rigorously processes sensor streams, detects periodicity in data, models rhythms from that data and uses the cyclic model parameters to predict an outcome. The framework can reliably discover various periods of different length in data, extract cyclic biobehavioral characteristics through exhaustive modeling of rhythms for each sensor feature; and provide the ability to use different combination of sensors and data features to predict an outcome. 1. A computer-implemented method for modeling biobehavioral rhythms of a subject , said method comprising:receiving sensor data collected from a mobile device and/or wearable device;extracting specified sensor features from said received sensor data;modeling biobehavioral rhythms for each of said extracted specified sensor features to provide modeled biobehavioral rhythm data of the subject;determining rhythmicity characteristics of cyclical behavior of said modeled biobehavioral rhythm data of the subject;measuring stability of said determined rhythmicity characteristics of the subject across different time windows and/or across different populations to determine the deviation of the subject's rhythmicity characteristics from normal rhythmicity characteristics to predict health status and/or readiness status of the subject using a machine learning module; andtransmitting said predication of health status and/or readiness status to a secondary source.2. The method of claim 1 , wherein said secondary source includes one or more of anyone of the following:local memory;remote memory; ordisplay or graphical user interface.3. The method of claim 1 , ...

Thermal model creation device, method, and program

There is provided a thermal model creation device capable of creating a highly accurate thermal model. A constraint-condition setting means 72 sets constraint conditions of parameters in the thermal model. A parameter determination means 73 determines all unknown values of parameters in the thermal model under the constraint conditions.

Collapse strength prediction method

A collapse strength prediction method of a steel pipe includes deriving a prediction equation indicating a relationship among D/t obtained by dividing an outer diameter D (mm) by a thickness t (mm), material characteristics, a collapse strength dominant factor, and a collapse dominant proof stress (σ CDOS ) of the steel pipe using a plurality of reference steel pipes collapse whose strengths have been obtained in advance, obtaining D/t, material characteristics, a collapse strength dominant factor, and a predicted collapse strength of a steel pipe that is an evaluation subject, obtaining a compressive stress-strain curve in a circumferential direction of the steel pipe that is the evaluation subject, obtaining a stress that causes a permanent strain to be generated in the steel pipe that is the evaluation subject as the collapse dominant proof stress on the basis of the compressive stress-strain curve, and computing the predicted collapse strength of the steel pipe that is the evaluation subject from the D/t, the material characteristics, the collapse strength dominant factor, and the collapse dominant proof stress, which have been obtained, on the basis of the prediction equation, and the permanent strain is set according to a value of the D/t of the steel pipe that is the evaluation subject.

A sensor placement method for capturing structural local deformation and global modal information

Sensor placement for structural health monitoring relating to modal estimation of bridge structures using structural data from strain gauges and accelerometers. Arrange strain gauges at large deformation positions of the structure for monitoring local deformation information. Adjust positions of strain gauges to include as much important displacement modal information as possible. Use strain mode shapes of strain gauge positions to estimate the displacement mode shapes of the structure and increase accelerometer to improve distinguishability of estimated displacement mode shapes, while reducing redundancy information among obtained displacement mode shapes. Different structural information contained in the strain gauges and the accelerometers are used, and placement of strain gauges can give local deformation information of key positions of the structure and obtain accurate structural displacement modal information. Placement of accelerometers improves displacement modal information obtained by estimation of strain mode shapes, and high-quality structural overall displacement modal information is obtained.

METHOD FOR OPTIMIZED OPERATION OF A FAN OR A FAN ASSEMBLY

In a method for optimizing the operation of a fan or a fan arrangement, using a digital replica of the fan or the fan arrangement and at least one operating parameter-specific algorithm, the data and findings obtained during operation are fed to a constant innovation and algorithm analysis with the goal of generating product innovations while at the same time generating improved “intelligent” algorithms. 1. A method of optimizing operation of a fan or a fan arrangement , the method comprising:generating a digital replica of the fan or of the fan arrangement as a representation of properties of the fan or fan arrangement, the representation based on one or more mathematical calculation models;generating at least one operating parameter-specific algorithm, based on at least one of known relationships and characteristic curves;generating a system behavior algorithm that calculates operating parameters of the fan or fan arrangement based on the digital replica and the at least one operating parameter-specific algorithm;determining, by the system behavior algorithm, optimized control variables for the fan or fan arrangement during operation of the fan or fan arrangement; andproviding the determined optimized control variables to a machine learning algorithm; andgenerating product innovations to the fan or fan arrangement and/or improved control algorithms based on information determined by the machine learning algorithm.2. The method according to claim 1 , further comprising:generating detailed numerical models that describe component-specific or function-specific characteristics of the fan;performing a model/data reduction on the detailed numerical models to thereby generate component-specific or function-specific reduced behavior models;generating the system behavior model having input and output variables by coupling and/or combining reduced data of the reduced behavior models; andperforming an optimization algorithm based on the input and output variables of the ...

Methods and apparatus for predicting glass dynamics

Computer-implemented methods and apparatus are provided for predicting/estimating (i) a non-equilibrium viscosity for at least one given time point in a given temperature profile for a given glass composition, (ii) at least one temperature profile that will provide a given non-equilibrium viscosity for a given glass composition, or (iii) at least one glass composition that will provide a given non-equilibrium viscosity for a given time point in a given temperature profile. The methods and apparatus can be used to predict/estimate stress relaxation in a glass article during forming as well as compaction, stress relaxation, and/or thermal sag or thermal creep of a glass article when the article is subjected to one or more post-forming thermal treatments.

METHODS AND SYSTEMS FOR DESIGNING METAMATERIALS

Systems and methods for computing linear and non-linear explicit, matrix-free, statics with applications to functionally graded mechanical metamaterials. In some aspects, these systems and methods use an algorithm based on a special finite element formulation called the Jacobian Free Newton Krylov (JFNK) method. 1. A computer-implemented method for reducing the computational burden , in terms of time and resources , when modeling a problem involving shell finite elements , the method comprising:a) a pre-processing phase, wherein a mesh is generated by a processor, and problem data is specified; deriving one or more element equations;', 'deriving one or more global system matrix-free shell finite element equations, wherein said deriving step comprises defining elements that include i) bending and ii) membrane stiffness degrees of freedom;', 'executing, by the processor, calls to one or more internal force routines from an explicit dynamics element and material library to incorporate material models;', 'evaluating coefficients in said element equations using the derived element equations and the derived global system matrix-free shell finite element equations;', 'adding load and boundary conditions to said element equations; and', 'solving said element equations; and, 'b) a solution phase comprising the steps ofc) a post-processing phase wherein computed data based on the solved element equations is displayed on a user interface of a display device.2. The method of claim 1 , wherein the step of deriving said global system matrix-free shell finite elements equations comprise equations for:a) static homogenization,b) functionally graded metamaterial design,c) hydrostatic loading,d) long-duration dynamics using implicit integration, and/ore) vibroacoustics in the frequency domain.3. The method of claim 1 , wherein said step of deriving one or more global system matrix-free shell finite element equations further comprises one or more of the following steps:a) defining a ...

Process simulator, layout editor, and simulation system

According to an embodiment, a process simulator has a layout processing unit to extract vertex coordinates of a first graphic of a layout of a semiconductor device described in a layout file used for a simulation, an initial mesh generation unit to generate a first initial mesh passing through the vertex coordinates in a plane direction of the layout, and a simulator unit to execute a process simulation of the semiconductor device based on simulation data in which a process flow of the semiconductor device is described, the layout, and the first initial mesh.

Method for detecting collision between cylindrical collider and convex body in real-time virtual scenario, terminal, and storage medium

A method for detecting a collision between a cylindrical collider and a convex body in a real-time virtual scenario performed at a computer includes: converting a cylindrical collider into a preset polygonal prism concentric to the cylindrical collider; transforming the preset polygonal prism to a local coordinate system of the convex body; obtaining a projection of the cylindrical collider on one or more testing axes according to each testing axis and the location of the preset polygonal prism in the local coordinate system of the convex body, and obtaining a projection of the convex body on each testing axis; and in accordance with a determination that the projections of the cylindrical collider and the convex body intersect with each other on each testing axis, moving the cylindrical collider away from the convex body in the real-time virtual scenario to avoid the collision.

Detecting appliances in a building from coarse grained meter data with partial label

Detecting appliance in a building, in one aspect, may comprise receiving meter data associated with energy consumption, the meter data comprising at least energy consumption data associated with usage of the appliance, receiving customer data associated with the meter data, extracting features for training a model for detecting the appliance, based on at least the meter data and the customer data, and constructing the model based on the features.

Rapid screening method of processing raw rice for rice products

A rapid screening method of processing raw materials for rice products is disclosed. The invention establishes a membership function between the raw materials and the processing suitability of raw materials by adopting theories in fuzzy mathematics. In combination with the analytic hierarchy process to obtain the weight of each evaluation index, the invention then establishes a two-level evaluation model for evaluating the quality of the rice products to improve the scientificity and accuracy of rice products' quality evaluation. On the basis of the above, a mathematical model between the characteristics of raw materials and the comprehensive evaluation values of the quality of rice products is constructed through regression analyses, which can quantitatively calculate the suitability of different varieties of raw materials in the processing of rice products and can provide support for reasonable use of the raw materials.

METHOD AND SYSTEM FOR QUANTITATIVELY EVALUATING KEROGEN SWELLING OIL IN SHALE

A method and system for quantitatively evaluating kerogen swelling oil in shale is provided. The method includes: establishing different types of kerogen molecular models, and loading each of the kerogen molecular models into a graphene slit-type pore composed of a lamellar structure; performing energy minimization (EM), relaxation and annealing to obtain a kerogen slit-type pore; loading a shale oil molecule into the kerogen slit-type pore to obtain an initial model of swelling and adsorption of shale oil in kerogen; assigning a value to a force field of the shale oil molecule and the kerogen molecule in the swelling and adsorption model to obtain a density of the kerogen and the shale oil; plotting a density curve of the kerogen and the shale oil; calculating kerogen swelling oil mass; determining per-unit kerogen swelling oil mass; and determining the kerogen swelling oil mass in different evolution stages. 1. A method for quantitatively evaluating kerogen swelling oil in shale , comprising:establishing different types of kerogen molecular models, and loading each of the kerogen molecular models into a graphene slit-type pore composed of a lamellar structure to obtain an initial model;subjecting each initial model to energy minimization (EM) and relaxation to obtain a compacted kerogen aggregate model;simulating an annealing process of the compacted kerogen aggregate model to obtain a kerogen slit-type pore;loading a shale oil molecule into the kerogen slit-type pore to obtain an initial model of swelling and adsorption of shale oil in kerogen;assigning a value to a force field of the shale oil molecule and the kerogen molecule in the initial model of swelling and adsorption of the shale oil in the kerogen to obtain a density of the kerogen and the shale oil;plotting a density curve of the kerogen and the shale oil according to the density of the kerogen and the shale oil;calculating kerogen swelling oil mass according to the density curve of the kerogen and the ...

Friction Design Method and Surface Roughness Control Method for Sliding Member and Production Method for Sliding Mechanism

Provided is a friction design method capable of estimating sliding friction generated between mutual sliding surfaces of two sliding members lubricated with lubricant with high precision. The friction design method sets a friction coefficient μ in a sliding surface model corresponding to mutual sliding surfaces of two sliding members ( and ) lubricated with lubricant (step S), and, based on a correlation between the friction coefficient μ and an oil film parameter (Λ(Rk) or Λ(Rk+Rpk)) calculated using a core portion level difference (Rk) or a sum of the core portion level difference (Rk) and reduced peak height (Rpk) as a parameter representing surface roughness in the sliding surface model (step S), sets a target value for surface roughness of the sliding surfaces required to be controlled as a product (steps S to S). 1. A friction design method for a sliding member comprisingbased on a correlation between a friction coefficient acquired using a sliding surface model corresponding to mutual sliding surfaces of two sliding members lubricated with lubricant and an oil film parameter calculated using a core portion level difference or a sum of the core portion level difference and reduced peak height as a parameter representing surface roughness in the sliding surface model, setting a target value for surface roughness of the mutual sliding surfaces of the two sliding members required to be controlled as a product.2. The friction design method for the sliding member according to comprising:calculating a target oil film parameter value corresponding to the target value from a correlation between the friction coefficient and the oil film parameter; andby calculating a composite roughness σ* of sliding surfaces corresponding to the target value from the calculated target oil film parameter value and an estimated or actually measured oil film thickness of lubricant between the mutual sliding surfaces of the two sliding members, setting a target value for a core portion ...

MODELING METHOD FOR A FAN ASSEMBLY OF AN AERO ENGINE

A modeling method for a fan assembly includes constructing non-axially symmetric end wall curved surfaces in a cascade channel. Constructing the non-axially symmetric end wall curved surfaces in the cascade channel includes: determining, using a flow path design method for a dual flow path of a blade end area, an initial axially symmetric curve radius and a recessed curve lowest point radius of non-axially symmetric curved surfaces; and constructing the non-axially symmetric end wall curved surfaces in the cascade channel according to the initial axially symmetric curve radius and the recessed curve lowest point radius. The modeling method constructs the non-axially symmetric end wall curved surfaces in the cascade channel using the flow path design method for a dual flow path of a blade end area, to implement the control of flow directions by the non-axially symmetric curved surfaces, thereby reducing end wall loss. 1. A modeling method for a fan assembly of an aero engine , the fan assembly comprising a hub , a case , and a plurality of blades arranged between the hub and the case , wherein the modeling method comprises constructing non-axially symmetric end wall curved surfaces of the hub in a cascade channel , the constructing the non-axially symmetric end wall curved surfaces of the hub in the cascade channel comprising the following steps:determining, using a flow path design method for a dual flow path of a blade end area, an initial axially symmetric curve radius and a recessed curve lowest point radius of non-axially symmetric curved surfaces; andconstructing the non-axially symmetric end wall curved surfaces of the hub in the cascade channel according to the initial axially symmetric curve radius and the recessed curve lowest point radius.2. The modeling method for a fan assembly of an aero engine according to claim 1 , wherein the flow path design method for a dual flow path of a blade end area comprises:determining an initial axially symmetric ...

POWER SUPPLY NETWORK DESIGN METHOD AND APPARATUS, AND STORAGE MEDIUM

Disclosed are a power supply network design method and apparatus, and a storage medium. The method includes: identifying a coordinate of each memory macro cell in a power domain to be processed; determining a coordinate of a first area, a coordinate of each second area, and a coordinate of each third area according to the coordinate of the each memory macro cell; determining a first metal wire arrangement parameter in the first area according to a design requirement, determining a second metal wire arrangement parameter in each second area according to the coordinate of each second area, determining a third metal wire arrangement parameter in each third area according to the coordinate of each third area; performing a power supply network arrangement on the first area, each second area, and each third area according to the coordinate of the first area, the coordinate of each second area, the coordinate of each third area, and the corresponding first metal wire arrangement parameter, second metal wire arrangement parameter, and third metal wire arrangement parameter. 1. A power supply network design method , comprising:identifying a coordinate of each memory macro cell in a power domain to be processed, the memory macro cell being rectangular, the coordinate comprising plane coordinates of four corners of the memory macro cell;determining a coordinate of a first area, a coordinate of each second area, and a coordinate of each third area in the power domain to be processed according to the coordinate of the each memory macro cell in the power domain to be processed, wherein the second area comprises an area between adjacent memory macro cells, the third area comprises an area of each independent memory macro cell, and the first area comprises an area excluding the first area and the second area;determining a first metal wire arrangement parameter in the first area in the power domain to be processed according to a design requirement, and determining a corresponding ...

SIMULATION OF MICROSTRUCTURE EVOLUTION OF MATERIAL AS SOLVED BASED ON EXPONENTIAL TIME-DIFFERENCE FORMAT

A method and device for simulating microstructure evolution of a material based on solution in an exponential time-difference format. The method includes: establishing a reaction rate theory model for substance defects, wherein the model is expressed with equations that comprise linear terms having coefficients characterized with matrixes; and iteratively solving the equations by using an exponential time-difference format, wherein during the iterative solving, the linear terms with exponential powers of the matrixes as the coefficients are integrated. Since a rate theory is not limited by spatial-temporal scales, the advantages of the rate theory can be significantly reflected when the microstructure evolution is simulated under a high damage dose condition; and then, the equations are solved by using the exponential time-difference format, with a solved result better in accuracy and higher in precision. 1. A method for simulating microstructure evolution of a material , comprising:establishing a reaction rate theory model for substance defects, wherein the model is expressed with equations that comprises linear terms having coefficients characterized by matrixes; anditeratively solving the equations by using an exponential time-difference format, wherein during the iterative solving, the linear terms with exponential powers of the matrixes as the coefficients are integrated.2. The method according to claim 1 , wherein the reaction rate theory model for substance defects comprises: a point defect concentration equation claim 1 , a double-defect cluster concentration equation claim 1 , and a defect cluster concentration equation.3. The method according to claim 1 , wherein the equations comprise non-linear terms; and during the iterative solving claim 1 , the non-linear terms are numerically solved.4. The method according to claim 3 , wherein during the iterative solving claim 3 , the non-linear terms are processed by using a predictor-corrector method.5. The method ...

ESTIMATION APPARATUS, OPTIMIZATION APPARATUS, ESTIMATION METHOD, OPTIMIZATION METHOD, AND PROGRAM

An estimation apparatus includes an input unit configured to input data related to a plurality of optimization problems, and an estimation unit configured to estimate a parameter of a function model that models a function to be optimized in each of the plurality of optimization problems. Additionally, the optimization apparatus includes an input unit configured to input a function model that models a function to be optimized in each of a plurality of optimization problems, and an optimization unit configured to optimize a target function by repeatedly evaluating the target function to be optimized in an optimization problem different from each of the plurality of optimization problems, using the function model. 1. An estimation apparatus , comprising:a receiver configured to receive data related to a plurality of optimization problems; andan estimator configured to estimate a parameter of a function model that models a function to be optimized in each of the plurality of optimization problems.2. The estimation apparatus according to claim 1 , wherein the estimator is further configured to:determine a gradient of an objective function according to the function model and the data, andestimate the parameter of the function model using the gradient so that a value of the objective function is at a maximum or a minimum.3. An optimization apparatus claim 1 , comprising:a receiver configured to receive a function model that models a function to be optimized in each of a plurality of optimization problems; andan optimizer configured to optimize a target function by repeatedly evaluating the target function to be optimized in an optimization problem different from each of the plurality of optimization problems, using the function model.4. The optimization apparatus according to claim 3 , wherein the optimizer is further configured to:determine a distribution of the target function using a parameter of the function model, andevaluate the target function with a value ...

Method for rigidity enhancement and weight reduction using laser peening

A method for rigidity enhancement and weight reduction using laser peening, includes the following steps: determining a limit size of a component; performing laser peening strengthening test on the component, and setting multiple groups of strengthening parameters; performing material performance test on the component, and acquiring material performance improvement data; determining a topological optimization strengthening region; optimizing the cross-sectional size of the component according to the material performance improvement data; and estimating static/dynamic strength, rigidity, bearing capacity and reliability indexes of the optimized component, judging whether design requirements are met or not, and repeating the step of determining the topological optimization strengthening region if NO, or completing the design of the component if YES.

Method of modeling multi-mode degradation process and predicting remaining useful life

Disclosed is a method of modeling a multi-mode degradation process and predicting a remaining useful life, which belongs to the technical field of health management. The method comprises the following steps: firstly collecting degradation data of equal-interval sampling; performing change point detection for the degradation data; performing clustering with a degradation rate as a feature for degradation segments segmented by change points; establishing a degradation model comprising mode switching, wherein the mode switching is described by one continuous-time Markov chain; estimating a Hurst exponent in a degradation process by a quadratic variation method; estimating a state transition probability matrix of the Markov chain and both a drift term coefficient and a diffusion term coefficient in each mode by a maximum likelihood method respectively; obtaining an obeying distribution of a drift term under an influence of state switching in a period of time in future based on a Monte Carlo algorithm; and obtaining a distribution of a remaining useful life with a given threshold. The distribution of the remaining useful life of a system or equipment comprising a plurality of degradation modes is predicted more accurately.

Predicting transition from laminar to turbulent flow over a surface using mode-shape parameters

In accordance with embodiments disclosed herein, there are provided methods, systems, and apparatuses for predicting whether a point on a computer-generated aircraft or vehicle surface is adjacent to laminar or turbulent flow is made using a transition prediction technique. A plurality of boundary-layer properties at the point are obtained from a steady-state solution of a fluid flow in a region adjacent to the point. Included in the list of boundary-layer properties are computed coefficients or weights of mode shapes that describe the boundary-layer profiles. A plurality of instability modes are obtained, each defined by one or more mode parameters. A vector of regressor weights is obtained for the known instability growth rates in a training dataset. For each instability mode in the plurality of instability modes, a covariance vector is determined, which is the covariance of a predicted local growth rate with the known instability growth rates. Each covariance vector is used with the vector of regressor weights to determine a predicted local growth rate at the point. Based on the predicted local growth rates, an n-factor envelope at the point is determined.

Magnetization analysis apparatus, magnetization analysis method, and recording medium

A magnetization analysis apparatus includes a processor configured to execute a process. The process includes: first calculating, using a magnetization vector of each of elements obtained by mesh division in which a magnetic substance is divided into a plurality of meshes and a magnetization vector of an element adjacent to each element, intermediate magnetization that is a magnetization vector at the halfway point between each element and an element adjacent to each element; second calculating an effective magnetic field using the intermediate magnetization calculated at the first calculating; and third calculating a magnetization vector of each element after a unit time based on the effective magnetic field calculated at the second calculating.

Method for providing reliable sensor data

A method for making reliable sensor data available and a device for making reliable sensor data of a system available is provided, including the following steps: receiving sensor data from at least one sensor unit that monitors a system component of the system, and processing the received sensor data using at least one stored ontology and a statistical data analysis model for generating the reliable sensor data.

Dimensions in Additive Manufacturing

An example method includes obtaining, by at least one processor, a plurality of categorised indications of deviations from expected dimensions for at least one object generated using an additive manufacturing apparatus wherein the categories comprise at least two of a first dimension type comprising dimensions which are expected to increase on application of a positive offset to object model data used to generate an object, a second dimension type comprising dimensions which are expected to decrease on application of a positive offset to the object to object model data used to generate an object, and a third dimension type comprising dimensions which are expected to be unaffected by application of an offset to object model data used to generate an object. The method may include determining a geometrical compensation model to apply to object model data for generating objects using additive manufacturing to compensate for anticipated deviations in dimensions.