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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 11. Отображено 11.
08-08-2023 дата публикации

Network marshalling method for heavy haul railway freight cars and wireless ad hoc network system

Номер: CN116552570A
Автор: LI GUOPING, LI ZHIWEI, TIAN GUANGKUO, MENG XIANGZHEN, LI CHUANHU
Принадлежит:

The invention relates to a heavy haul railway wagon network marshalling method and a wireless ad hoc network system, and the method comprises the following steps: a plurality of wagons in the same physical marshalling enter a marshalling station track one by one, the station track line number of the station track is obtained, and a wireless communication channel is selected based on the station track line number; recording time information for acquiring the station track line number, and generating marshalling information based on the time information and the vehicle identifier ID of the truck; a plurality of trucks in the same physical marshalling carry out marshalling information exchange and marshalling information comparison in the same wireless communication channel, the marshalling position of each truck is determined, and a marshalling first truck generates a marshalling list based on a marshalling information comparison result. According to the method, the railway wagons on different ...

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Номер записи: 1
13-06-2023 дата публикации

Regenerative code-based threshold secret sharing method and system

Номер: CN116260577A
Автор: LI HUI, MENG XIANGZHEN, WANG XIAOPENG, HOU HANXU, PENG MING, ZHANG CAIFANG, YIN WEIJUAN, MA HUAJUN
Принадлежит:

The invention provides a threshold secret sharing method and system based on a regeneration code, and the method comprises the steps: S1, carrying out the secret processing through the regeneration code, determining a secret participant and a secret reconstruction threshold through a secret distributor, determining a secret share restoration threshold, a coefficient matrix and a message matrix according to the principle of the regeneration code, and calculating a coding matrix; s2, distributing secret shares, wherein a secret distributor distributes each secret share to each secret participant through a secure transmission channel; s3, repairing the secret share: when the secret share of the participant is lost, repairing the lost secret through at least other participants; and S4, reconstructing the original secret, and performing calculation through the secret share of at least one participant to obtain original secret information. The method is more in line with the operation mode of ...

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Номер записи: 2
20-08-2014 дата публикации

Train broadband communication network architecture suitable for railway vehicle

Номер: CN103997545A
Автор: XU YANFEN, JIANG SHIJUN, XUE SHUKUN, GUO RUI, MENG XIANGZHEN
Принадлежит:

The invention relates to a train broadband communication network architecture suitable for a railway vehicle. Specifically, the network architecture is a broadband communication network architecture provided according to train control and an information service network. The train broadband communication network architecture mainly comprises two-level bus architectures which are a train-level network bus and a vehicle-level network bus. According to a train-level network, a broadband network bus is adopted, penetrates through carriages of a whole train, is in linear connection with train-level network elements, and is used for achieving communication between the train-level network elements. According to a vehicle-level network, a broadband network bus is adopted and used for achieving communication between the train-level network elements and vehicle-level network elements, communication between the vehicle-level network elements, and communication between the vehicle-level network elements ...

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Номер записи: 3
18-07-2023 дата публикации

Powder coating for engine cylinder body and cylinder cover and preparation method of powder coating

Номер: CN116445060A
Автор: WANG YAN, WU YANTING, JIANG CHUN, MENG XIANGZHEN
Принадлежит:

The invention relates to the technical field of coating preparation, in particular to a powder coating special for a cylinder body and a cylinder cover of an engine and a preparation method thereof. The coating comprises the following substances: 30%-40% of phenolic aldehyde modified epoxy resin, 30%-40% of hydroxyl saturated polyester resin with the acid value of 30 +/-1mg KOH/g, 6%-18% of pigment, 10%-15% of superfine barium sulfate, 0%-5% of soft composite silica powder, 0.4%-1% of modified polyethylene wax and the balance of auxiliaries. According to the present invention, the scientific and reasonable ratio is adopted, the powder coating suitable for the engine cylinder body and cylinder cover surface film coating and the production process thereof are developed, and the coating can be completely cured at the temperature of 140 DEG C for 60 min when the coating is sprayed on the engine cylinder body and cylinder cover surface by using the electrostatic spraying construction method, ...

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Номер записи: 4
16-04-2014 дата публикации

16-marshalling train network integration testing table

Номер: CN103728973A
Автор: XU YANFEN, SUN GUOBIN, JIANG SHIJUN, MENG XIANGZHEN, GUO RUI, XUE SHUKUN
Принадлежит:

The invention discloses a 16-marshalling train network integration testing table aiming at a CRH5 type train. The 16-marshalling train network integration testing table comprises a network system, an ACU/TCU hauling system, an air-conditioning control system, a passenger information system, an axle box detection controller, a local display, a firework system and a charger. The 16-marshalling train network integration testing table further comprises a train bus and a vehicle bus. The network system achieves bi-directional information interchange between the train bus and the vehicle bus through a gateway, every system of the network integration testing table is communicated with a main processing unit through the vehicle bus, and the train bus is a bus running through a train, transmits control, monitoring and fault diagnostic information and guarantees system information transmitting accuracy and efficiency in the train application process. The network integration testing table further ...

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Номер записи: 5
13-06-2023 дата публикации

Method for controlling charring process in light hydrocarbon cracking device

Номер: CN116254131A
Автор: YANG WEIDONG, SHE XINGJIN, GUO YUAN, YANG CHI, ZHANG SHIYIN, XUE MIAO, LI JIANLIANG, ZHANG CHENGLONG, LI JINLOU, SHANG ZHAOHUI, CHENG QIANG, HU PENG, MENG XIANGZHEN
Принадлежит:

The invention discloses a control method for a coke-burning process in a light hydrocarbon cracking device, belonging to the field of preparation of ethylene by cracking light hydrocarbon in petrochemical industry, which adopts diluted steam (DS) and coke-burning air (DA) in the light hydrocarbon cracking device as coke-burning reaction raw materials, adopts a method of combining time gradient and furnace tube outlet temperature (COT) temperature rise gradient, and adopts a chemical reaction equilibrium principle to control the coke-burning process in the light hydrocarbon cracking device. The charring reaction rate is controlled. According to the control method of the charring process, raw materials are cheap and easily available in a light hydrocarbon cracking device, and the charring is orderly and controllably carried out by fully utilizing the chemical equilibrium principle and changing the reaction temperature, the reactant concentration and the reactant partial pressure mode. Compared ...

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Номер записи: 6
13-08-2021 дата публикации

Train Ethernet general ground test system and test method thereof

Номер: CN113259204A
Автор: MENG XIANGZHEN, HAN KUN, LI CHUANHU, XU YIHUANG, 孟祥振, 韩坤, 李传虎, 徐逸煌
Принадлежит:

The invention provides a train Ethernet universal ground test system, and the system comprises a topology editing module, a topology generation management module and at least one network equipment access module; the topology editing module is used for man-machine interaction, a user completes topology configuration of a network to be tested, topology configuration information and port configuration information are issued, and switching of different network topologies is achieved; the topology generation management module is connected with the topology editing module and is used for receiving the topology configuration information, completing topology configuration of the to-be-tested vehicle-mounted terminal equipment and realizing distributed data communication between the to-be-tested vehicle-mounted terminal equipment; the network equipment access module is connected with the topology generation management module and the to-be-tested vehicle-mounted terminal equipment and is used for ...

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Номер записи: 7
09-05-2023 дата публикации

Intelligent energy management and control method and system for rail transit

Номер: CN116094173A
Автор: WANG TINGTING, SUN GUOBIN, WEI XIONG, WANG ZHI, DUAN JIAJUN, WANG HAIRUI, ZHANG JUNJIE, YIN GUANGHUI, MENG XIANGZHEN, XIA MENG
Принадлежит:

The invention discloses an intelligent energy management and control method and system for rail transit, and the method comprises the steps: data collection and processing: collecting first real-time operation data of a power supply system and second real-time operation data of a train, and correcting the first real-time operation data and the second real-time operation data; a model construction step: constructing a power flow optimization calculation model based on the historical real-time operation data of the substation and the train in combination with a preset constraint condition; and a control step: according to the working state of the substation, obtaining an optimization instruction through a power flow optimization calculation model based on the corrected first real-time operation data and the second real-time operation data, and carrying out optimization control on the controllable power supply device. Through intelligent identification of section train power requirements and ...

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Номер записи: 8
30-10-2020 дата публикации

Portable equipment capable of automatically spraying and brushing characters

Номер: CN0211831481U
Автор: XU LONGTAO, MENG XIANGZHEN
Принадлежит: LUOYANG KUTUI NETWORK TECH CO LTD, LUOYANG KUTUI NETWORK TECHNOLOGY CO., LTD.

The utility model discloses portable equipment capable of automatically spraying and brushing characters, and relates to the technical field of spraying and brushing. The device comprises a protectionbox, a placement groove is formed in the surface of the protection box, a door body is movably arranged on the surface of the placement groove, a positioning spring is fixedly installed at the left end of the protection box, a positioning rod is fixedly installed at the top of the positioning spring, the positioning rod is movably connected with the door body, and sliding grooves are formed in the two sides in the placement groove. The fixing ring is separated from the second connecting block; the rope body is wound on the surface of the rotating shaft; the fixing ring is connected with the first connecting block; meanwhile, the connection between the fixing rods is released; the lifting spring drives the fixing rod to return to the interior of the lifting groove through the elasticity ofthe ...

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Номер записи: 9
11-08-2023 дата публикации

1, 3, 5-triarylbenzene compound and preparation method thereof

Номер: CN116573983A
Автор: MENG XIANGZHEN, CHENG DONG, YE BOHANG, XIA YIMING, WANG QINGPING, PAN XUQING, LIU MENGRU
Принадлежит:

The invention provides a 1, 3, 5-triarylbenzene compound and a preparation method thereof, the 1, 3, 5-triarylbenzene compound is obtained by uniformly mixing alpha, beta-unsaturated ketone, 2-phenylpropionaldehyde and iodine elementary substance and heating for reaction. Compared with the prior art, the method has the following beneficial effects that the reaction condition is mild, the method is simple and rapid, the substrate applicability is wide, industrial production is facilitated, and the prepared 1, 3, 5-triarylbenzene compound is more complex and diversified in structure.

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Номер записи: 10
06-06-2023 дата публикации

Wood-based hydrogel and preparation method thereof

Номер: CN116214655A
Автор: YANG RUI, MENG XIANGZHEN, JIN XIN, ZHOU JING, LUO YUJIA, LIU CHAOZHENG, LI XIAOJUAN, XU JUN
Принадлежит:

The invention belongs to the technical field of preparation of wood impregnated composite materials, and relates to wood-based hydrogel and a preparation method thereof. Aiming at the technical problems that in the prior art, when wood-based hydrogel is prepared, lignin is not removed, the strength of the hydrogel is weak, the dispersity of a system is poor, and after lignin is removed, the size stability is low, the wood-based hydrogel is provided, the lignin is reserved, the size stability is improved, meanwhile, the strength reaches the standard, and the wood-based hydrogel has excellent dispersity. The invention further provides a preparation method of the wood-based hydrogel. The transverse dry shrinkage rate, the longitudinal dry shrinkage rate, the transverse swelling rate, the longitudinal swelling rate and the mechanical strength of the prepared hydrogel all reach industrial indexes.

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Номер записи: 11