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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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Форма поиска

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.
29-08-2023 дата публикации

Hole-opening positioning device for fire-fighting spray header in suspended ceiling

Номер: CN116653129A
Автор: LI ZHONGJIAN, ZHU SHENGJIE, LI LIGUO, REN XIAOFENG, WANG TIANPENG, LIU ZHENDONG, GAO WEISUDAN, CHI LINGLI, WANG SHAOHENG, ZHANG XUECHEN
Принадлежит:

The invention relates to a drilling and positioning device for a fire-fighting spray header in a suspended ceiling. The drilling and positioning device comprises a screw thread, a main body, an infrared lamp switch and an infrared lamp holder, an infrared emitting device and a battery are arranged in the main body, an infrared lamp switch is arranged on the side edge of the main body, and an infrared lamp holder is arranged at the lower end of the main body. The device is convenient to use, the working efficiency of workers is greatly improved, fire-fighting spraying trepanning is accurate, and the mounting effect of a fire-fighting spraying head is standard and attractive.

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Номер записи: 1
01-07-2010 дата публикации

AUTOMATIC DETECTION METHOD AND APPARATUS FOR ROTOR INITIAL POSITION ANGLE OF DOUBLE-FED MACHINE

Номер: WO2010072154A1
Автор: REN, Xiaofeng, WEI, Ru
Принадлежит:

An automatic detection method and apparatus for a rotor initial position angle of a double-fed machine (2). The method comprises the following steps: giving a reference voltage angle θgiven, and combining with a given reference voltage amplitude Vref to generate a reference voltage vector; converting the reference voltage vector into a driving signal by space vector width modulation SVPWM to drive a rotor side PWM converter (5) to generate an alternating current voltage signal and apply it to a rotor winding of the double-fed machine (2); obtaining a rotor mechanical angle n*θrotor of the double-fed machine (2); obtaining a stator voltage vector angle θ1; and subtracting the rotor mechanical angle n*θrotor and the given reference voltage angle θgiven from the stator voltage vector angle θ1 to obtain the rotor initial position angle θinital; wherein n is the number of pole pairs of the double-fed machine (2). The automatic detection for the rotor initial position angle of the double-fed ...

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Номер записи: 2
22-09-2011 дата публикации

METHOD, APPARATUS AND SYSTEM FOR ADJUSTING WORKING PERFORMANCE OF OPTICAL COMMUNICATION DEVICE

Номер: WO2011113267A1
Автор: REN, Xiaofeng
Принадлежит:

A method, an apparatus and a system for adjusting working performance of optical communication device are disclosed by the present invention, which all can generate performance adjustment information according to the Forward Error Correction (FEC) information generated by a receiving-side decoder, and feed it back to a receiving-side converter (810); the receiving-side converter adjusts its working performance according to the received performance adjustment information (820). Under the condition that the working performance of the receiving-side converter is improved, the bit error rate of the data sent to the receiving-side decoder will be reduced, and finally the feedback loop will adjust the working performance of the receiving-side converter to an optimal state, and enable the data received by the receiving-side decoder to avoid bit error as much as possible, thus achieving the purpose of improving the system performance. Therefore, the present invention can solve the actual problems ...

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Номер записи: 3
04-08-2023 дата публикации

Assembly tool for speed regulation lever

Номер: CN116533182A
Автор: WANG LIANHONG, LI XIAOXIA, LI ZHENG, ZHANG XUEDONG, REN XIAOFENG, QIANG PEISHAN, DING YUELING
Принадлежит:

The invention provides an assembling tool for a speed regulating lever. The assembling tool comprises a base plate, a reference column, a first limiting assembly and a second limiting assembly. The base plate comprises a positioning part and an assembling part, the top surface of the assembling part is higher than that of the positioning part, a reference hole is formed in the top surface of the positioning part, the bottom end of the reference column is inserted into the reference hole, and an avoiding hole, a first assembling hole and a second assembling hole are formed in the top surface of the assembling part. And a first mounting hole communicated with the first assembly hole and a second mounting hole communicated with the second assembly hole are formed in the side wall of the base plate. The first limiting assembly is detachably arranged in the first mounting hole, and the second limiting assembly is detachably arranged in the second mounting hole. According to the assembling tool ...

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Номер записи: 4
23-05-2023 дата публикации

Preparation method of topiroxostat

Номер: CN116143756A
Автор: HU WEIDONG, LI PEI, ZHENG JIANG, REN XIAOFENG, GAO SHIJING
Принадлежит:

The invention belongs to the technical field of topiroxostat, and discloses a preparation method of topiroxostat, which comprises the following steps: condensing a compound IV with hydrazine hydrate to generate a compound III, reacting with a compound V to generate a compound II, cyclizing the compound II to obtain a topiroxostat I crude product, salifying the topiroxostat I crude product with organic sulfonic acid, and dissolving the salt by potassium carbonate to obtain the topiroxostat. A certain amount of metal ion complexing agent is added in the salt dissolving process to remove residual heavy metal ions, and then the I-crystal-form topiroxostat is obtained through water pulping and water-miscible solvent pulping. According to the preparation method, a plurality of mutagenic warning structure impurities generated in the production process can be effectively controlled, the generation of cyano hydrolysis impurities can be remarkably reduced, the product quality is improved, the production ...

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Номер записи: 5
04-07-2023 дата публикации

Electric drill stabilizing additional device

Номер: CN116373128A
Автор: LI ZHONGJIAN, ZHU SHENGJIE, LI LIGUO, REN XIAOFENG, LIU ZHENDONG, DENG XIUHUA, WANG TIANPENG, ZHANG XUECHEN, WU LINGLING, GAO WEISUDAN, CHI LINGLI, MA XINHAO, ZHANG MAOSEN, LI XIAOPENG
Принадлежит:

The invention relates to an electric drill stabilizing additional device which comprises an electric drill, a limiting block, a limiting column, a spring, a positioning block, a tubular buckle, a locking bolt and a nut. The tubular buckle is of an annular structure, four supports are arranged on the tubular buckle, and limiting rings are arranged at the ends of the supports. A locking bolt is arranged below the annular structure, and when the annular structure sleeves the front end of the electric drill, the device is fixed by screwing down the locking bolt; the limiting column is sleeved with the spring, the positioning block is arranged at the front end of the limiting column, and the limiting block is arranged at the back of the limiting column; the limiting ring slides on the limiting column, and the limiting block limits the farthest sliding distance behind; when the four positioning blocks abut against the working face, the electric drill is limited to do vertical movement, and the ...

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Номер записи: 6
28-07-2023 дата публикации

Dismounting tool for large plug of fuel injection pump

Номер: CN116494183A
Автор: WANG LIANHONG, LI XIAOXIA, REN XIAOFENG, ZHANG XUEDONG, QIANG PEISHAN, QI HUIQING, DING YUELING
Принадлежит:

The invention provides a fuel injection pump large plug dismounting tool which comprises a fixed platform, a pressing unit is fixedly arranged on the fixed platform, the pressing unit comprises a pressing head, and the pressing head can be tightly pressed on the upper surface of a fuel injection pump; the dismounting unit is arranged on one side of the fixed platform, the dismounting unit can move in the length direction of the fixed platform, the dismounting unit comprises a base, a threaded sleeve, a lining and a mandrel, a guide hole is formed in the base, the threaded sleeve is inserted into the guide hole and can rotate in the guide hole, the outer wall of the lining is in threaded connection with the threaded sleeve, and the outer wall of the lining is in threaded connection with the mandrel. The core shaft is inserted into the bushing and can rotate in the bushing, and a dismounting head and the core shaft rotate synchronously. The oil injection pump is fixed through the pressing ...

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Номер записи: 7
14-07-2023 дата публикации

Clamp for dismounting and mounting bearing

Номер: CN116423416A
Автор: WANG LIANHONG, LI XIAOXIA, LI ZHENG, ZHANG XUEDONG, REN XIAOFENG, QI HUIQING
Принадлежит:

The invention provides a clamp for dismounting and mounting a bearing, which comprises a bottom plate, two sets of supporting units are correspondingly arranged at the two ends of the bottom plate, and an auxiliary support is mounted on the bottom plate and between the two supporting units; the supporting unit comprises a support, a mounting groove is formed in the top of the support, a connecting end is arranged at the position, located on one side of the mounting groove, of the upper portion of the support, a locking end is arranged on the other side of the mounting groove, an end cover is hinged to the connecting end, a movable rib bolt is hinged to the locking end, and a locking mechanism is installed on the movable rib bolt and comprises a sleeve arranged at the screw end of the movable rib bolt in a sleeving mode. A nut is screwed at the screw end of the movable rib bolt, and a rebounding piece is arranged between the nut and the sleeve bottom plate so that the sleeve can be kept ...

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Номер записи: 8
13-04-2021 дата публикации

Measuring tool

Номер: CN212947437U
Автор: WANG LIANHONG, YE RUI, REN XIAOFENG, LI ZHENG, WU XIN, 王连宏, 叶锐, 任晓峰, 李峥, 吴鑫
Принадлежит: SHANXI DIESEL ENGINE IND CO LTD, SHANXI DIESEL ENGINE INDUSTRY CO., LTD., 山西柴油机工业有限责任公司

The utility model discloses a measuring tool which comprises an L-shaped support, a supporting plate and a toothed bar. The L-shaped support comprises a vertical rod and a transverse rod, the toothed rod is movably inserted into the vertical rod and is horizontally arranged, the supporting plate is installed on the transverse rod and can move along the transverse rod, a limiting device is installed at one end of the supporting plate, and the limiting device limits movement of the toothed rod. The diesel engine adjusting device is high in universality, the production efficiency is greatly improved, the adjusting precision is high, and the effect of the batch production capacity of various diesel engines is achieved.

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Номер записи: 9
06-06-2023 дата публикации

Green full-automatic express sterilizing device

Номер: CN116212074A
Автор: LI ZHONGJIAN, ZHU SHENGJIE, MA XINHAO, LI LIGUO, REN XIAOFENG, WANG TIANPENG, LIU ZHENDONG, GAO WEISUDAN, ZHANG XUECHEN, CHI LINGLI, LI XIAOPENG
Принадлежит:

The invention relates to a green full-automatic express sterilizing device which comprises a goods shelf, a solar panel, a solar storage battery, an ultraviolet lamp, a light reflecting plate, an alcohol barrel, a water flow supercharger, an automatic induction switch, a PVC pipe and an atomizing and pressurizing spray head. The double disinfection modes are as follows: 1, the ultraviolet lamp stores electricity through solar energy to disinfect articles; and 2, performing alcohol disinfection on the articles through the automatic sensing system. The method can be used for a cargo disinfection system, can disinfect express cargoes and the like, and blocks virus transmission.

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Номер записи: 10
11-07-2023 дата публикации

Portable fuel injector test tool

Номер: CN116412052A
Автор: YE LAN, GUO JUNBAO, REN XIAOFENG, YIN GUOHUA, JIANG LIKUN, YU JINGONG
Принадлежит:

The invention provides a portable oil injector test tool which comprises a hand pump and an oil suction pump, the hand pump comprises a hand pump body, an oil pressing channel and an oil inlet channel are arranged in the hand pump body, the oil pressing channel is provided with a plunger, and the hand pump body is provided with an oil pressing structure corresponding to the plunger; oil storage cavities are formed in the oil suction pump body and share one inlet and outlet, the inlet and outlet are communicated with an outlet of the oil inlet channel, and pistons are arranged in the oil storage cavities. The portable oil injector testing tool is compact in structure, convenient to carry and easy to operate, oil suction operation is carried out through the oil suction pump, then sucked fuel oil is output to the oil injector through the hand pump, the opening pressure of the oil injector is detected, and the opening pressure and the atomization quality of the oil injector are tested under ...

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Номер записи: 11