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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 8. Отображено 8.
11-07-2023 дата публикации

Gravel migration tracking system and method

Номер: CN116415604A
Автор: WANG ZHIWEN, WANG WEIWEI, MA GONGBO, YUAN LEI, FU YUANBIN
Принадлежит:

The invention relates to the technical field of geology, and particularly discloses a gravel migration tracking system and method.The gravel migration tracking system comprises a handheld rod, a recognizer, an electronic tag and a handbook, the recognizer is fixed to one end of the handheld rod and used for recognizing the electronic tag, and the electronic tag is implanted into gravel and used for marking the gravel; the handbook comprises a receiving module, a storage module and a transmission module, the receiving module is used for receiving the information of the electronic tag recognized by the recognizer, the storage module is used for storing the received information, and the transmission module is used for sending the stored information into the information processing device; the electronic tag is implanted into the gravel, the gravel naturally moves on the beach and is scanned after a period of time, the movement data of the gravel is obtained, the movement rule of the gravel ...

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Номер записи: 1
12-05-2023 дата публикации

JP cabinet thermostat

Номер: CN116111491A
Автор: PANG ZHEN, SONG GUOHAO, YUAN LEI, XU YANRU, ZOU CHANGJUN, LI WEI, WANG RUI
Принадлежит:

The invention discloses a JP cabinet constant temperature device, and particularly relates to the technical field of JP cabinets, the JP cabinet constant temperature device comprises a JP outer cabinet, a first JP inner cabinet is arranged on one side of the interior of the JP outer cabinet, and a second JP inner cabinet is arranged on the other side of the interior of the JP outer cabinet, the JP outer cabinet, the first JP inner cabinet and the second JP inner cabinet are arranged, and a cooling cavity is formed between the outer sides of the first JP inner cabinet and the second JP inner cabinet and the inner side of the JP outer cabinet; according to the JP cabinet, the cooling mechanism and the heat dissipation mechanism are arranged, the two partition frames are used in cooperation, the cooling cavity is divided into the top cavity, the middle cavity and the bottom cavity, circulation of cooling liquid in the cooling cavity can be carried out, the internal environment of the JP cabinet ...

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Номер записи: 2
07-07-2023 дата публикации

User occupational prediction method and device based on multi-label unbalanced machine learning

Номер: CN116402211A
Автор: YI LI, HUANG TIANLI, CHENG XIAYING, WANG LAI, GU YONGXING, WEN YANG, WANG HUIFENG, YUAN LEI, WANG YUHE, LI XIANG, ZHANG KUNKUN
Принадлежит:

The invention relates to a user occupational prediction method and device based on multi-label unbalanced machine learning. The method comprises the following steps: obtaining user basic data from a bulk steel transaction platform; taking the user basic data as input of a trained occupational prediction model, and obtaining a corresponding first prediction probability; adjusting the first prediction probability to obtain a second prediction probability, and obtaining a user occupational prediction result based on the second prediction probability; wherein when the occupational prediction model is trained, based on a sample label, the training data is sampled according to a set positive and negative sample proportion, a plurality of training sets are constructed for training, and an optimal model is selected as the occupational prediction model. Compared with the prior art, the problems that the model prediction probability is high and output results are difficult to compare due to unbalanced ...

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Номер записи: 3
15-08-2023 дата публикации

Ultrasonic communication method without channel fading compensation in steel rail

Номер: CN116599600A
Автор: YANG YUAN, ZOU ENDE, YUAN LEI
Принадлежит:

The invention discloses an ultrasonic communication method without channel fading compensation in a steel rail, and the method comprises the steps: transmitting a reference signal on a complete steel rail before the ultrasonic communication of the steel rail, storing the received reference signal in a microprocessor at a receiving end, transmitting a modulation signal during the ultrasonic communication of the steel rail, and transmitting the modulation signal at the receiving end of the steel rail; and amplifying and filtering the modulated signal, and then performing related demodulation on the modulated signal and a reference signal stored in an earlier stage to restore an original signal so as to realize the ultrasonic communication of the steel rail. According to the method, the problem that the irregular steel rail channel is difficult to model is solved, and errors such as fading and the like which are easily generated when ultrasonic guided waves are propagated in the steel rail ...

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Номер записи: 4
01-08-2023 дата публикации

Power module packaging structure with low parasitic inductance and high power density

Номер: CN116525580A
Автор: YANG YUAN, MA HAOHAO, WEN YANG, LI XUEPING, LI QIANG, YUAN LEI
Принадлежит:

The invention discloses a power module packaging structure with low parasitic inductance and high power density, which comprises a second copper substrate, a third direct copper-clad plate, a second direct copper-clad plate, a first direct copper-clad plate and a first copper substrate which are sequentially arranged from top to bottom, one end of the second direct copper-clad plate is provided with a via hole, and the via hole is filled with a conductive material. A power chip A, a fly-wheel diode A, a direct current input positive terminal and an alternating current output terminal are arranged on the upper surface of the second direct copper-clad plate; and a power chip B, a fly-wheel diode B and a direct current input negative terminal are arranged on the lower surface of the second direct copper-clad plate. The power chip and the diode are welded on the upper surface and the lower surface of the direct copper-clad plate at the same time, and the upper surface and the lower surface ...

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Номер записи: 5
16-05-2023 дата публикации

Vehicle non-emergency collision avoidance method and system based on long-time trajectory prediction

Номер: CN116118724A
Автор: DING TONGQIANG, ZHANG KEXIN, LI ZHIQIANG, YANG LICHENG, WANG DI, TIAN JIAN, REN BAIHAN, YUAN LEI, LI MIN, FENG TING, XI JIANFENG, ZHENG LILI
Принадлежит:

The invention belongs to the technical field of road vehicle driving control considering driver characteristics, and particularly relates to a vehicle non-emergency collision avoidance method and system based on long-time trajectory prediction. The information acquisition module is used for acquiring real-time response time of a driver, brake performance parameters of a driving vehicle and road parameters; the trajectory prediction module is used for predicting driving trajectories of the vehicle and surrounding vehicles according to the constructed PINN vehicle long-time trajectory prediction model and the information acquired in the information acquisition module; the collision risk coefficient analysis module is used for obtaining a collision risk coefficient through the predicted driving tracks of the vehicle and the surrounding vehicles and analyzing a threshold risk interval where the collision risk coefficient is located; and calling a corresponding vehicle control scheme according ...

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Номер записи: 6
29-06-2016 дата публикации

Blood transfusion integral type of drawing blood storage bag

Номер: CN0205339557U
Автор: YUAN LEI, SUN YAN, ZHANG XIAONA
Принадлежит:

... 本实用新型公开了一种抽血输血一体式存储袋,包括袋体、储血袋、输血袋、过滤器、导管、输血管、穿刺针、刻度、挂钩和出液口，所述袋体呈正方形状内上部设有储血袋，所述储血袋下部设有输血袋，所述输血袋与储血袋通过导管连通，所述导管上设有过滤器，所述袋体顶部设有挂钩，所述挂钩左侧设有输血管，所述输血管一端上设有穿刺针，所述袋体上部储血袋外部设有刻度，且袋体底部设有出液口。该抽血输血一体式存储袋，用于采血、过滤、分离、混合、储存，一次性完成，避免了开封污染的机会，保证了密封性能，提高了血液的安全性。同时一次性使用，安全卫生，具有结构简单、使用方便、保存期长的效果，且操作方便、设计合理，有利于推广使用。 ...

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Номер записи: 7
07-04-2023 дата публикации

Film covering device for cover plate of electric energy metering box

Номер: CN115924178A
Автор: PANG ZHEN, YUAN LEI, ZOU CHANGJUN, XU ZHENJUN, WANG RUI
Принадлежит:

The invention discloses a film covering device for an electric energy metering box cover plate, and particularly relates to the technical field of electric energy metering box cover plate machining, the film covering device comprises a first bottom frame and a second bottom frame, the top end of the first bottom frame is fixedly provided with a first material conveying assembly, and the top end of the second bottom frame is fixedly provided with a second material conveying assembly; a packaging mechanism is arranged between the first bottom frame and the second bottom frame, and a rotating mechanism is fixedly installed on the side, away from the packaging mechanism, of the second bottom frame. Therefore, the multiple metering box cover plate bodies are subjected to comprehensive film covering, the protection performance of the metering box cover plate bodies during follow-up transportation is improved, the metering box cover plate bodies are prevented from being damaged during follow-up ...

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Номер записи: 8