Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 9. Отображено 9.
25-04-2023 дата публикации

Spectral peak determination method and system, storage medium and electronic equipment

Номер: CN116008250A
Автор: ZHOU HUI, YUAN DING, WU HONGYAN, XIA ZHENG
Принадлежит:

The invention belongs to the field of spectrums, and particularly relates to a spectrum peak determination method and system, a storage medium and electronic equipment. The method comprises the following steps: sequentially carrying out baseline removal processing and spectrum de-noising processing on an actually measured Raman signal to obtain a high-frequency noise signal and a standard spectrum; performing basic data calculation on the high-frequency noise signal and the standard spectrum, and obtaining a global signal-to-noise ratio of an actually measured Raman signal based on the basic data; and judging the global signal-to-noise ratio and a threshold value to obtain a judgment result, determining all spectrum peaks in the standard spectrum data, and screening the spectrum peaks according to a preset condition adjusted based on the judgment result to obtain a final spectrum peak. According to the method, the extra calculation work in the peak searching process can be reduced by preprocessing ...

Подробнее
Номер записи: 1
30-06-2023 дата публикации

Drug identification method and system, storage medium and electronic equipment

Номер: CN116359201A
Автор: LI ZHENYING, YUAN DING, WU HONGYAN, XIA ZHENG
Принадлежит:

The invention relates to the technical field of medicine identification, in particular to a medicine identification method and system, a storage medium and electronic equipment, and the method comprises the following steps: obtaining a Raman spectrum of each preset medicine sample of a preset type, carrying out pretreatment to obtain a plurality of first Raman spectrums, and then calculating a threshold value; by utilizing an L1-KernelPCA method, carrying out non-multiplication kernel operation on all the first Raman spectrums to obtain a matrix and feature vectors sorted according to feature values from large to small; selecting the first m feature vectors as principal component vectors, calculating the cumulative variance of each first Raman spectrum and the corresponding first reconstruction vector, and judging the quality of each preset drug sample according to the size relationship between the cumulative variance and a threshold value. Accuracy can be guaranteed, and high efficiency ...

Подробнее
Номер записи: 2
18-04-2023 дата публикации

Gate device and method for rapidly detecting trace explosives

Номер: CN115985005A
Автор: WANG CHEN, LIU YANG, HAN JUN, ZENG HUI, ZHENG QIANG, YUAN DING, WU HONGYAN, XIA ZHENG
Принадлежит:

The invention relates to a gate device and method for rapidly detecting trace explosives. The gate device comprises a gate shell, and an explosive detection mechanism, a detection sampler, an enhanced sampler, a detection belt, an identity verification mechanism and a detection belt transmission mechanism which are assembled on the gate shell, a ticket sampling opening is formed in the gate shell, the detection sampler is located below the ticket sampling opening, and a gap for the detection belt to penetrate through is reserved between the detection sampler and the ticket sampling opening; the detection belt sequentially penetrates through the enhanced sampler, the gap and the explosive detection mechanism and is driven by the detection belt transmission mechanism to operate; wherein the enhanced sampler comprises an electrostatic mechanism for increasing static electricity to the detection belt or a solvent mechanism for forming a solvent film on the detection belt. A detected person ...

Подробнее
Номер записи: 3
02-05-2023 дата публикации

Aerosol collecting device and method capable of adjusting sampling particle size

Номер: CN116046484A
Автор: WANG CHEN, SU YONG, LIU YANG, YUAN DING, WU HONGYAN, XIA ZHENG
Принадлежит:

The invention relates to an aerosol collecting device and method capable of adjusting the sampling particle size, the aerosol collecting device capable of adjusting the sampling particle size comprises a collecting shell, a mounting shell, a sampling carrier and a flow pump, a part of the collecting shell is mounted in the mounting shell, an air inlet is formed in one end, located outside the mounting shell, of the collecting shell, and an air outlet is formed in the other end, located outside the mounting shell, of the collecting shell; hard side walls are hinged to the two opposite side walls of the end, located in the installation shell, of the collection shell correspondingly, and the two hard side walls are connected through two soft side walls and define a sample collection channel. Slit adjusting mechanisms are installed on the two hard side walls, the sampling carrier and the flow pump are both installed in the installation shell, the sampling carrier makes contact with the free ...

Подробнее
Номер записи: 4
30-05-2023 дата публикации

Overlapped ion gate

Номер: CN116190199A
Автор: WANG CHEN, TONG JIE, WU TAO, YUAN DING, WU HONGYAN, XIA ZHENG
Принадлежит:

The invention provides an overlapped ion gate, and relates to the technical field of ion gates. Comprising a first metal sheet and a second metal sheet which are oppositely arranged, an insulating spacer is arranged between the first metal sheet and the second metal sheet, the voltage control circuit is connected with the first metal sheet and the second metal sheet, and the input end of the voltage control circuit is connected with conductive ends used for connecting the first metal sheet and the second metal sheet with a power supply respectively; the two sides of the insulating spacer abut against the side walls of the first metal sheet and the second metal sheet respectively. The voltage in the first metal sheet and the second metal sheet is controlled through the voltage control circuit, the direction of an electric field formed between the first metal sheet and the second metal sheet is changed, the purpose of opening and closing the ion gate is achieved, the electric field for pushing ...

Подробнее
Номер записи: 5
23-06-2023 дата публикации

Floating bacteria counting method

Номер: CN116287098A
Автор: WANG CHEN, SU YONG, XIONG SHENGJUN, LI ZHENYING, YUAN DING, WU HONGYAN, XIA ZHENG
Принадлежит:

The invention relates to the technical field of planktonic bacteria counting, in particular to a planktonic bacteria counting method which comprises the following steps: sampling at a fixed flow rate in an actual environment; when the planktonic bacteria detector detects any aerosol particle, the particle size of any aerosol particle is determined according to the scattered light corresponding to any aerosol particle, the layer number of the flat plate to which the particle size belongs in the Anderson sampler is determined by looking up a table, and the fluorescence of any aerosol particle is detected at the same time; calculating the fluorescent light intensity/scattered light intensity ratio of any aerosol particle, and calculating the probability that any aerosol particle is the planktonic bacteria by using a probability calculation function corresponding to the range to which the particle size of any aerosol particle belongs until the sum of the probabilities that each aerosol particle ...

Подробнее
Номер записи: 6
09-05-2023 дата публикации

Handheld gas detector and multifunctional gas detector

Номер: CN116087414A
Автор: MA FUCHAO, YUAN DING, WU HONGYAN, XIA ZHENG
Принадлежит:

The invention provides a handheld gas detector and a multifunctional gas detector. The handheld gas detector comprises a shell, a rotating cover, a sensor, a fan and a fan fixing seat, the sensor is installed in the shell, the bottom end of the fan fixing seat is connected with the shell, the fan is installed in the fan fixing seat, the sensor is located below the fan, the output end of the fan is communicated with the input end of the sensor, and the rotating cover is arranged on the shell. A plurality of first air inlet holes and a plurality of first exhaust holes are formed in the top end of the fan fixing seat, the first air inlet holes communicate with the input end of the fan, the first exhaust holes are formed in the peripheral sides of the first air inlet holes in a one-to-one correspondence mode, and the first exhaust holes communicate with the input end of the sensor; the rotating cover is provided with a plurality of through holes in one-to-one correspondence with the first air ...

Подробнее
Номер записи: 7
23-06-2023 дата публикации

Inner-coated hollow waveguide, preparation method, detection system and application

Номер: CN116299831A
Автор: XIONG SHENGJUN, ZHOU RIGUI, DING ZHIQIANG, YUAN DING, WU HONGYAN, XIA ZHENG
Принадлежит:

The invention relates to an internally-coated hollow waveguide, a preparation method, a detection system and application, and relates to the field of optical detection.The internally-coated hollow waveguide is formed by connecting two sets of matrixes which are symmetrical up and down, and semi-micro-channels which correspond to each other and are semicircular are arranged on the opposite sections of the two sets of matrixes respectively; the inner walls of the semi-micro-channels are internally plated with reflecting films, and the two semi-micro-channels form a micro-channel which is communicated with the two sides of the hollow waveguide and has a circular cross section. The hollow waveguide with the inner coating film can be applied to optical detection of gas and liquid, the collection efficiency of optical signals can be enhanced, and the intensity of the optical signals can be remarkably improved.

Подробнее
Номер записи: 8
28-04-2023 дата публикации

Raman spectrum discrimination method and system

Номер: CN116026808A
Автор: ZHOU HUI, YUAN DING, WU HONGYAN, XIA ZHENG
Принадлежит:

The invention discloses a Raman spectrum discrimination method and system, and relates to the field of Raman spectrum analysis. The method comprises the following steps: preprocessing a to-be-detected sample signal to obtain a first Raman scattering signal of the to-be-detected sample signal; calculating a correlation coefficient according to the first Raman scattering signal in combination with a preset spectrum database; according to the scheme, the correlation coefficient is calculated according to the first Raman scattering signal in combination with the preset spectrum database, and the matched spectrum type of the to-be-detected sample is obtained according to the correlation coefficient, so that compared with a traditional method, the calculation amount is greatly reduced, and the detection accuracy is improved. The algorithm operation time is shortened, the algorithm time consumption is greatly reduced, and the operation is simple.

Подробнее
Номер записи: 9