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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3. Отображено 3.
12-05-2023 дата публикации

Protective device for building construction hoist

Номер: CN116101857A
Автор: LIAN YE, MENG QINGBIN, PEI GUIHONG, LI CHANGJIANG, ZHANG LEI, ZHANG TANGYU, GUO MINGCHANG, LI GUOFU
Принадлежит:

The invention belongs to the technical field of elevators, and particularly relates to a building construction elevator protection device. Comprising an electrical control box, a protection plate is erected on the top of the electrical control box, the two sides of the protection plate are inclined downwards, drainage grooves are evenly formed in the protection plate, and storage boxes and sealing frames are fixedly connected to the outer walls of the two sides of the electrical control box; accumulated rainwater is drained into a water supply pipe through a water collecting tank and then sprayed out through a conical nozzle, strong impact force is generated on a waterwheel power plate, the waterwheel power plate is driven to rotate, and a protective curtain is unwound to be matched with a sealing frame to form a rain shielding structure to shield and protect the side wall of the electrical control box; and external rainwater is prevented from entering the box through the heat dissipation ...

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Номер записи: 1
11-02-2015 дата публикации

Numerical analysis method applied to leaking and channeling mechanism and prevention and control method of injection fluid

Номер: CN104345133A
Автор: LIU JIANJUN, JI YOUJUN, SONG RUI, PEI GUIHONG
Принадлежит:

The invention discloses a numerical analysis method applied to a leaking and channeling mechanism and a prevention and control method of an injection fluid. The method is used for carrying out research based on the fluid-solid coupling theory by virtue of a method with combination of indoor test, numerical calculation and field detection. By virtue of the method, typical mudstone is selected for carrying out indoor test under different water ratios and building an inversion model of stress and deformation of a point-changeable stratum of an inversion sleeve of deformation data of a sleeve. On account of a typical injection-production scheme, the accurate positions of leakage, interzone and flowing along fault are judged and optimized by comparing the numerical simulation and the field detection; finally, a reasonable injection-production scheme and a reasonable measure for preventing serious loss of injection water are provided; and the method has important application values of improving ...

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Номер записи: 2
28-01-2015 дата публикации

Method for calculating oil field casing damage under fluid-solid coupling effect

Номер: CN104318032A
Автор: LIU JIANJUN, JI YOUJUN, SONG RUI, PEI GUIHONG
Принадлежит:

The invention discloses a method for calculating oil field casing damage under the fluid-solid coupling effect. The method is based on a fluid-solid coupling theory, research is performed through a method of combining indoor experiments, numerical calculation and theoretical analysis; a seepage flow mathematical model in the petroleum reservoir exploitation process and a stress field calculation mathematical model are established according to the fluid mechanics theory and the elastic-plastic theory, and an elastic-plastic constitutive model of reservoir rock is established according to indoor experiment analysis; and a fluid-solid coupling mathematical model is established by means of the effective stress principle. According to the fluid-solid coupling mathematical model and the solving thinking, a numerical simulation method for reservoir fluid-solid coupling ground stress prediction and casing damage prevention is established on the basis of existing commercial software; with a Qudi ...

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Номер записи: 3