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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 12. Отображено 12.
14-04-2023 дата публикации

Flexible direct current reactive power control method and device

Номер: CN115967133A
Принадлежит:

The embodiment of the invention discloses a flexible direct current reactive power control method and device, and the method comprises the steps: carrying out the voltage drop deviation value U according to the voltage drop deviation value U of a current conversion bus of a flexible direct current receiving end converter station during the short-circuit fault of an alternating current system and the voltage drop value Ui after the reactive power disturbance of the alternating current system; according to the deviation value U and the voltage drop value Uj of other direct current conversion buses after reactive power disturbance occurs in the alternating current system, calculating a flexible direct current multi-infeed short circuit ratio KSCRi according to the voltage drop value Ui and Uj of the direct current receiving end conversion bus, and calculating and determining a reactive power adjustment coefficient according to the deviation value U and the KSCRi; and determining a reactive ...

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06-06-2023 дата публикации

Heavy object transportation electric device installed on stair handrail

Номер: CN116216457A
Принадлежит:

The invention discloses a heavy object transportation electric device installed on a stair handrail in the technical field of transportation equipment, and aims to solve the problems that an object-carrying stair climbing machine used in the prior art is large in operation difficulty, prone to damage a stair structure and the like. The heavy object transportation electric device comprises a device body and a track, the track is arranged on the stair handrail in a sleeving mode, and the device body is arranged on the track; an electric motor is arranged in the device body and connected with a driving wheel, and the driving wheel can drive the device body to move up and down stairs along a rail under driving of the electric motor. A dry reed type sensor is arranged in the device body, a permanent magnet is embedded in the position, located at the stair corner, of the track, when the device body runs to the position near the permanent magnet, the dry reed type sensor can be closed and communicated ...

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18-07-2023 дата публикации

Transparent pore stratum flowing water grouting test system and method considering temperature effect

Номер: CN116448620A
Принадлежит:

The invention provides a transparent pore stratum flowing water grouting test system and method considering the temperature effect, and the system comprises a transparent pore stratum model, a grouting system, a data collection system, a high-temperature flowing water simulation system, a temperature monitoring system and an analysis system, and the transparent pore stratum model is used for simulating a pore stratum with the target porosity; the grouting system is used for providing grout in a target grouting mode; the high-temperature flowing water simulation system is used for analyzing the influence of high-temperature flowing water with different temperatures and/or flows on grouting slurry diffusion; and the grouting slurry diffusion process under the high-temperature flowing water conditions of different temperatures and flows is recorded, and temperature changes in the model in the grouting process are recorded and analyzed. The grouting slurry diffusion process can be well observed ...

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13-12-2018 дата публикации

AIR FRYER HAVING ROTATION FUNCTION

Номер: WO2018223713A1
Автор: ZHANG, Yichi
Принадлежит:

An air fryer having a rotation function comprises a main body (1) and an inner cavity (2) arranged at a lower inner portion of the main body (1). A first fan (6) is installed at an upper inner side of the inner cavity (2). A heating tube (15) is installed under the first fan (6). A partition plate (3) is provided inside the main body (1) and positioned above the inner cavity (2). A cooling circulation channel (13) is arranged between the inner cavity (2) and the partition plate (3) and between the inner cavity (2) and the main body (1). A second fan (4) is installed at an upper end of the cooling circulation channel (13). A rotating frame (10) is laterally provided at a middle portion of the inner cavity (2). One end of the rotating frame (10) is driven to rotate by a driving motor (7) at an outer side of the inner cavity (2). An opening is arranged at one side of the inner cavity (2) and a panel (14) capable of being rotatably opened is provided at the opening. The air fryer can rotate ...

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07-04-2023 дата публикации

Method and system for judging whether chopping energy consumption resistor is put into operation or not

Номер: CN115940238A
Принадлежит:

The invention discloses a method and system for judging whether a chopping energy consumption resistor is put into operation or not, and belongs to the technical field of ultra-high voltage power transmission. The method comprises the following steps: when a short-circuit fault occurs in a flexible direct-current receiving-end alternating-current system, determining a bus voltage of a fault point of the flexible direct-current receiving-end alternating-current system; according to the bus voltage, determining a voltage increase value of a receiving-end converter station caused by surplus energy in a short-time fault ride-through period of the flexible direct-current receiving-end alternating-current system; and determining a voltage critical increase value when the chopping energy consumption resistor is put into the flexible direct current system, and if the voltage critical increase value is not greater than the voltage increase value, putting the chopping energy consumption resistor ...

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04-08-2023 дата публикации

Optimized image block feature selection loop filtering method

Номер: CN116546226A
Автор: DING DANDAN, ZHANG YICHI
Принадлежит:

The invention discloses an optimized image block feature selection loop filtering method. According to the method, a big data set is constructed by using a reconstructed image as a sample and an original image as a label, and a quality enhancement network is pre-trained. And then carrying out grouping training on the feature extraction part of the pre-trained quality enhancement network. And calling the quality enhancement network after grouping training in image coding, performing quality enhancement on the reconstructed image, and selecting an optimal feature index according to the loss value between the output image and the label. And then compressing the optimal feature index and the image together, and transmitting the compressed optimal feature index and the image to a decoding end. And in the decoding process, outputting a quality enhancement result of the corresponding group through the optimal feature index. And splicing to obtain a final quality enhanced image. And the decoding ...

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16-05-2023 дата публикации

Fractured rock mass high-temperature flowing water grouting simulation method and system

Номер: CN116127859A
Принадлежит:

The invention discloses a fractured rock mass high-temperature flowing water grouting simulation method and system, and the method comprises the steps: designing a slurry viscosity characterization model under the action of high-temperature flowing water, obtaining slurry injection durations at different moments through an injection duration transmission equation, and obtaining slurry injection time fields at different moments; temperature change rules of the grout at different positions under the action of high-temperature hot water are obtained through the temperature equation so as to obtain grout temperature fields at different moments, and grout viscosity fields at different moments in the high-temperature flowing water grouting process of the fractured rock mass are continuously updated through the viscosity updating equation; therefore, the spatio-temporal evolution characteristics of the slurry viscosity in the simulation of the whole process of high-temperature flowing water grouting ...

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15-08-2023 дата публикации

Construction method of prefabricated bridge bearing platform splicing surface pier column embedded bars

Номер: CN116591043A
Принадлежит:

The invention discloses a construction method of prefabricated bridge bearing platform splicing surface pier column pre-embedded bars, and relates to the technical field of municipal bridge construction, the construction method comprises the following steps: 1, construction preparation; step 2, supporting the foundation pit; thirdly, a bearing platform foundation pit is excavated, and a foundation pit cushion layer is constructed; fourthly, bearing platform steel bars are welded, and embedded bars are installed; fifthly, a positioning jig frame is supported; sixthly, prefabricated pier column embedded bars are welded to the splicing face of the bearing platform; seventhly, bearing platform formwork installation and concrete pouring are conducted; eighthly, the positioning jig frame and the bearing platform formwork are removed; ninthly, a bearing platform foundation pit is backfilled, and pier column embedded bars are protected; and tenthly, pier columns are installed. By means of the positioning ...

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05-05-2023 дата публикации

Testing device and method for monitoring disturbance of stratum grouting to tunnel structure

Номер: CN116067845A
Принадлежит:

The invention discloses a test device and method for monitoring disturbance of stratum grouting to a tunnel structure. The method comprises the steps that a grouting device and a water injection device adjust the grouting pressure and the water injection speed through a pressure control valve and a water pressure control valve respectively; in the test device, a test box body is loaded with a soil medium, a lining is placed in the soil medium, and the test box body is connected with a water injection device and a grouting device; according to the lining pressure and the slurry diffusion diagram at different moments, different grouting pressures and different water injection speeds, simulation of slurry diffusion under different grouting pressures and simulation of slurry diffusion at different water injection speeds under the flowing water condition are conducted. And in combination with the lining pressure and the real-time slurry diffusion point cloud picture, visual simulation of the ...

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13-04-2021 дата публикации

Safe and reliable air fryer

Номер: CN212939430U
Автор: ZHANG YICHI, 张一驰

The utility model discloses a safe and reliable air fryer which comprises an air duct plate, a temperature control probe is installed on the side wall of the air duct plate, a fixing support fixed to the side wall of the air duct plate is arranged on one side of the temperature control probe, and at least two limiting hook parts are arranged on the fixing support. The limiting hook parts limit the temperature control probe and press and fix the temperature control probe on the side wall of the air duct plate, and the two limiting hook parts limit the temperature control probe, so that the two ends of the temperature control probe are consistent in height and do not incline, and the accuracy of temperature detection is ensured.

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13-04-2021 дата публикации

Sealing structure of air fryer with cooking function

Номер: CN212939423U
Автор: ZHANG YICHI, 张一驰

The utility model relates to a sealing structure of an air fryer with a cooking function, which comprises an air duct plate positioned in a shell of the air fryer and a cooking cavity positioned below the air duct plate, a heating pipe is arranged below the air duct plate, and the heating pipe is positioned at the upper part of the cooking cavity. A steam generating assembly is further arranged in the air fryer shell, a steam inlet communicated with the steam generating assembly is formed in the cooking cavity, a through hole allowing the power source connecting end of the heating pipe to penetrate out is formed in the air duct plate, and a heating pipe fixing piece connected to the power source connecting end of the heating pipe in a sleeved mode is installed in the through hole. And a sealing gasket for sealing the through hole is arranged on the heating tube fixing sheet. The air fryer has the advantages of being simple in structure, preventing hot air and water vapor from overflowing ...

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06-06-2023 дата публикации

Power grid toughness evaluation method and device

Номер: CN116227955A
Принадлежит:

The invention discloses a power grid toughness evaluation method and device, and the method comprises the steps: selecting power grid toughness measurement based on a complex network mapping model; based on the power grid toughness measure, constructing a staged toughness index from a time sequence dimension; wherein the staged toughness indexes comprise a resistance stage toughness index, a survival stage toughness index, a recovery stage toughness index and a whole process toughness index; and calculating a power grid survival recovery curve in stages by matching a power grid simulation tool with a strategy fitting model to obtain a numerical value of the staged toughness index so as to evaluate the toughness of the power grid. According to the method and the device provided by the embodiment of the invention, the problems that the index homogenization degree is serious, the calculation method is disjointed with the actual recovery process of the power grid, the modeling of the toughness ...

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