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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 10. Отображено 10.
23-06-2023 дата публикации

Chassis structure for railway punctuality

Номер: CN116279627A
Автор: ZHOU JIONG, GU MEINA, FENG CHENGLI, LIU YING'AN, ZHONG XIAOFENG, JIANG MINGXING, LU QIANG, WANG LI, TAO BIN, YANG CAN, YANG QINGFAN, YU JINFENG, WEI QINGLING, JIA LUOYUN, ZHANG XIAOXIA, ZHANG LIPING, LEI HANXIANG, TANG ZIYUN, GAN JUNLIN, SHI SHANCHENG, CHENG HUIXIA, ZHAO SHOUXIN
Принадлежит:

The invention provides an underframe structure for railway vehicle keeping. The underframe structure comprises an underframe and a floor arranged on the underframe. The chassis comprises a framework of a frame structure and sleeper beams, the framework is composed of a plurality of beam body components, the sleeper beams are arranged close to the two ends of the framework, four bearing points are arranged on the framework in the direction of the center line, and each bearing point is used for being connected with a traction base of the two-stage suspension bogie to transmit longitudinal loads and transverse loads; and two mounting stations are formed on the two sides of the framework, and inclined pedal turning plate devices are assembled on the mounting stations. The chassis center sill is different from an existing railway freight freight punctuality chassis center sill in structure, a center sill center plate of a traditional wagon is omitted, a center sill lower cover plate is an integral ...

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Номер записи: 1
23-06-2023 дата публикации

Student score prediction method of convolutional long and short term network based on attention mechanism

Номер: CN116306785A
Автор: ZHANG XIAOLI, KONG CHEN, ZHU GUIFU, XU NUO, WEN JUN, NIE JIALEI, YANG CAN
Принадлежит:

The invention relates to a student score prediction method of a convolutional long and short term network based on an attention mechanism, which predicts a professional course score by utilizing a pre-repair course score of a student and can be applied to early warning before the professional course starts. The method comprises the following steps: inputting obtained pre-repair course score data into a convolutional long-short-term memory network layer for feature learning; the learned sequence features are input to an attention mechanism layer, and different weights are distributed to different pre-repair course score features; the learned sequence features and weights generated by the attention mechanism are sent to a merging layer for feature merging; the merged features are sent to two full-connection network layers for classification, and the final output is a prediction result; the long-short-term memory network is a prediction network capable of processing time sequence data, the ...

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Номер записи: 2
25-07-2023 дата публикации

Unsupervised cornea contour extraction method, system and equipment

Номер: CN116485830A
Автор: WANG RIWEI, TAN ZUOPING, CHEN XUAN, LI KEDI, YANG CAN, YUE LIJUAN, ZHU CHAOJIE, XU QIANG, HUO YAN, WANG YAN
Принадлежит:

The invention discloses an unsupervised cornea contour extraction method, system and device, and relates to the technical field of image processing, and the method comprises the steps: carrying out the SLIC superpixel segmentation of each frame of sample cornea image in each sample cornea video, so as to obtain a plurality of pixel point groups and corresponding grouping labels; if the sample cornea image is a first frame in the first sample cornea video, inputting the sample cornea image and grouping labels corresponding to the plurality of pixel point groups into an initial cornea contour extraction model for training; if the sample cornea image is not the first frame in the first sample cornea video, inputting the sample cornea image and the grouping labels corresponding to the plurality of pixel point groups into the cornea contour extraction model which completes training of the previous frame of sample cornea image for training; and when the loss function value corresponding to the ...

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Номер записи: 3
27-08-2021 дата публикации

Rail-replaceable stone ballast hopper car underframe

Номер: CN214057542U
Автор: XUE HAILIAN, LIU CAN, PENG LIAO, LI GUO, CHENG HUIXIA, ZHANG RUIGUO, SHU MEI, HUANG RUI, LI GAOLIANG, YANG CAN, YUAN LIANG, LI JUNSHENG, LIU BING, LONG JIANGUO, ZHANG XIANFENG, 薛海莲, 刘灿, 彭燎, 李国, 程会霞, 张瑞国, 淑梅, 黄瑞, 郦高亮, 杨璨, 袁亮, 李军生, 刘兵, 龙建国, 张显锋
Принадлежит: CRRC MEISHAN CO LTD, CRRC MEISHAN CO., LTD., 中车眉山车辆有限公司

The utility model relates to the technical field of rail transportation, in particular to a ballast hopper car chassis capable of changing rails, which comprises a pair of side beam assemblies arranged in parallel, end beam assemblies are arranged at two ends of each side beam assembly, the end beam assemblies are inwards connected with traction beam assemblies, and the two traction beam assemblies are connected through a middle beam assembly. The lower portion of the traction beam assembly is provided with a narrow rail side bearing suitable for a narrow rail and a standard rail side bearing suitable for a standard rail. The stable and reliable frame structure is obtained by arranging the side beam assemblies, the end beam assemblies, the traction beam assemblies and the middle beam assemblies, the self weight of the frame structure can be reduced under the condition that the strength requirement is met, and energy consumption in the operation process is reduced; meanwhile, the narrow ...

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Номер записи: 4
23-06-2023 дата публикации

Floor of cargo-carrying vehicle, mounting structure and mounting method of floor

Номер: CN116279613A
Автор: ZHANG CHAODE, LI DONG, WU CHANG, LU QIANG, HUANG RUI, LIU BING, YANG SHIWEI, ZHANG RUIGUO, WEI QINGLING, XUE HAILIAN, YANG CAN, CAO ZHIHONG, LI JUNSHENG, YU JINFENG, SHUMEI, LIU CAN, HUANG BOTAO, DU YING
Принадлежит:

The invention relates to the technical field of cargo-carrying vehicle structures, in particular to a cargo-carrying vehicle floor, a mounting structure and a mounting method thereof.The floor comprises a bearing plate, the bearing plate is connected with a supporting structure, and a connecting structure used for being connected with a vehicle frame is arranged on the lower portion of the supporting structure; the supporting structure is provided with a lap joint arm set extending towards the outer side of the bearing plate, the lap joint arm set at least comprises a lower meshing arm and an upper meshing arm which are oppositely arranged and extend in the opposite directions, and the lower meshing arms and the upper meshing arms of every two adjacent spliced floors are in lap joint in a matched mode. The structure of the floor provided by the invention can be matched with the adjacent floor to realize compression, so that the overall mounting stability is improved; and meanwhile, the ...

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Номер записи: 5
04-04-2023 дата публикации

Method for drawing functional vibration spectrum of airborne equipment of jet aircraft

Номер: CN115901147A
Автор: TU MEIXIA, LEI CHANGCHUN, ZHANG CUIQING, YANG CAN, WANG ZHIQIANG, A XIDA, LI KAI
Принадлежит:

The invention discloses a method for drawing a functional vibration spectrum of airborne equipment of a jet aircraft. The method comprises the following steps: dividing and determining an installation area of the equipment on the aircraft; 2, acquiring a low-frequency-band vibration quantity value of the equipment according to the national military standard; 3, calculating a high-frequency-band vibration quantity value of the equipment according to a national military standard related formula; 4, drawing a test vibration spectrum according to the low-frequency-band vibration quantity value and the high-frequency-band vibration quantity value; 5, the low-frequency-band vibration quantity value and the high-frequency-band vibration quantity value of the equipment in the installation area are revised; and 6, drawing a final functional vibration spectrum according to a revision result. According to different installation areas, the low-frequency-band vibration quantity value and the high-frequency-band ...

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Номер записи: 6
14-04-2023 дата публикации

Lookout workshop and watch car

Номер: CN115959162A
Автор: ZHONG XIAOFENG, ZHOU JIONG, TAO BIN, WANG LI, GU MEINA, YANG CAN, LU QIANG
Принадлежит:

The invention relates to the technical field of railway vehicles, in particular to a lookout workshop and a guard bus.The workshop comprises a frame structure and a covering part arranged on the frame structure, the frame structure comprises a bottom beam frame and a top beam frame, and the perimeter defined by the bottom beam frame is smaller than that of the top beam frame; a plurality of supporting columns are arranged on the side portion between the bottom beam frame and the top beam frame for connection and fixation. The supporting columns are obliquely arranged, and the longitudinal projection of the bottom beam frame falls into the top beam frame. The covering part comprises a ceiling structure covering the top beam frame and a light-transmitting side wall structure covering the side portion where the supporting columns are located. According to the invention, through the structural optimization of the workshop parts, the observation convenience of the surroundings is improved, the ...

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Номер записи: 7
29-06-2016 дата публикации

Gin unginned cotton feed cleaning device

Номер: CN0205347631U
Автор: LU QIUSONG, YANG CAN, MIAO CAIHUA, ZHAI HONGHU, YAN XIUGUANG, GUO DAWEI, DUAN TIANYOU
Принадлежит:

... 本实用新型公开了一种轧花机籽棉喂料清理装置，涉及棉花加工机械技术领域，该清理装置上端带有进料口，内部包括第一清理机构、第二清理机构和出料通道，第一清理机构和第二清理机构的右侧均与出料通道连通，第一清理机构带有连通口，在连通口处设有第一过滤栅，第二清理机构设有出杂口，在出杂口处设有第二过滤栅，在第一清理机构内设有钉齿辊，在钉齿辊与第一过滤栅之间为第一弧形间隙，在第二清理机构内设有齿条辊和拨料辊，齿条辊与第二过滤栅之间为第二弧形间隙，连通口位于齿条辊的左上方，拨料辊位于齿条辊的右侧。该装置能够有效的对籽棉上的杂物进行清理，而且结构简单实用方便。 ...

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Номер записи: 8
08-08-2023 дата публикации

Fuel cell purging control method, device and equipment and readable storage medium

Номер: CN116565262A
Автор: FEI SHANGBAO, FANG YANHUA, LI DONGSHENG, YANG CAN, WANG JIAN
Принадлежит:

The invention provides a fuel cell purging control method, device and equipment and a readable storage medium, and the fuel cell purging control method comprises the steps: if the environment temperature is lower than a first preset temperature, obtaining the current vehicle speed when the shutdown of a fuel cell is detected; if the current vehicle speed is greater than the preset vehicle speed, purging an electric pile of the fuel cell by using a decompression purging mode; if the current vehicle speed is not larger than the preset vehicle speed, whether the power battery can continue to supply power independently or not is detected according to the remaining electric quantity of the power battery and the power consumption of the vehicle; if yes, when it is detected that the vehicle is powered off, a mixed gas purging mode is used for purging an electric pile of the fuel cell; and if not, purging the stack of the fuel cell by using a decompression purging mode. According to the invention ...

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Номер записи: 9
13-07-2016 дата публикации

Flight insect trapper

Номер: CN0205378723U
Автор: WEI AOSONG, YANG YAOJUN, YANG CAN, WANG ZHIYONG
Принадлежит:

... 本实用新型公开了种飞行昆虫诱捕器，涉及诱捕装置技术领域。本实用新型包括信息素扩散器和诱捕腔，所述信息素扩散器包括扩散器本体和超声波发生器，所述超声波发生器设置在扩散器本体内部，信息素通过超声波发生器的超声雾化，通过出雾通道管扩散至外界，增加了信息素气息的扩散范围，从而使得大范围内的昆虫能够被信息素引诱，从而实现大范围的昆虫诱捕的目的。 ...

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Номер записи: 10