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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 16. Отображено 16.
29-06-2016 дата публикации

Continuous casting slab thickness measurement instrument

Номер: CN0205352268U
Автор: WANG DAZHI, SHI WEI, LIU JUNZHAN, ZHANG CHI
Принадлежит:

... 本实用新型为一种连铸板坯厚度测量工具，解决直尺测量板坯厚度误差大的问题，其是一个由第一测量臂，第二测量臂以及将第一、第二测量臂连接的螺栓组成的剪刀状工具；第一测量臂分为第一前、后臂段，之间设第一螺孔，第一前臂段前端是读数端，尾端是第一板坯测量端；第二测量臂分为第二前、后臂段，之间设第二螺孔，第二前臂段由直臂及与直臂呈一角度的刻度臂组成，其与读数端配合，读出连铸板坯厚度，第二后臂段的结构与第一后臂段的结构对称，其尾端为第二板坯测量端；第一测量臂与第二测量臂用铆钉式螺栓分别通过第一螺孔及第二螺孔铆钉连接。使用本测量工具，可以方便的测量板坯中心部位的厚度，并可以直接读数，提高了测量精度。 ...

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Номер записи: 1
30-12-2021 дата публикации

METHOD FOR DENOISING UNDERWATER ACOUSTIC SIGNAL ON THE BASIS OF ADAPTIVE WINDOW FILTERING AND WAVELET THRESHOLD OPTIMIZATION

Номер: WO2021258832A1
Автор: WANG, Jingjing, LI, Jiaheng, DONG, Xinli, YANG, Xinghai, SHI, Wei, XU, Lingwei, GUO, Ying, LI, Haitao
Принадлежит:

Provided is a method for denoising an underwater acoustic signal on the basis of adaptive window filtering and wavelet threshold optimization. Said method comprises: first describing, in conjunction with an SαS distribution and normal distribution model, a Gaussian/non-Gaussian pulse noise in an underwater acoustic channel; designing a median filtering method based on an adaptive window, and correcting the size of a filtering window according to the number of noise points in the window, so as to suppress the non-Gaussian pulse noise; and then, on the basis of an improved artificial bee colony method (GDES-ABC), optimizing threshold parameters of a wavelet threshold denoising method, thereby improving the capability of suppressing Gaussian noise. Said method can effectively suppress Gaussian/non-Gaussian pulse noises in a complex underwater acoustic environment, improve the receiving capability of underwater acoustic communication signals such as 2FSK, QPSK and 16QAM, and obtain a higher ...

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Номер записи: 2
16-05-2023 дата публикации

Machining method of inner hole smooth arc clearance groove

Номер: CN116117441A
Автор: JIANG SHUI, SHI WEI, ZHANG YULONG, WAN KUI, HONG CHANG-YONG, WEI KUN, ZHANG MINGQING
Принадлежит:

The invention discloses a method for processing a smooth arc clearance groove of an inner hole, which comprises the following steps of: determining the reverse deformation of the inner hole according to the depth requirement of the clearance groove; and pre-tightening force is applied to the outer circle of the clearance groove area of the milling shaft inner hole, so that the area is uniformly reduced to a specified numerical value. And the arc clearance groove with the surface roughness of more than Ra0.8 can be machined in the inner hole of the milling shaft.

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Номер записи: 3
25-04-2023 дата публикации

Colorful high-brightness alternating reflective fabric and preparation method thereof

Номер: CN116009131A
Автор: WANG SHIJIE, SHI WEI, HUANG ZIYUN, LIU GUANGLEI
Принадлежит:

The invention provides a colorful high-brightness alternating reflective fabric and a preparation method thereof.The preparation method at least comprises the following steps that S1, a bead planting film is prepared, specifically, a PE/PET composite film is heated to be softened, then glass beads are distributed on the composite film and settled in the heated state, the glass beads are embedded in the composite film, after cooling, the bead planting surface of the composite film is coated with a layer of glue, and the bead planting film is obtained; and drying to obtain the bead planting film. S2, plating is conducted on the bead planting film obtained in the step S1; and S3, coating glue on the bead planting film on which the coating is completed, and compounding the bead planting film with base cloth. The fabric obtained through a special process can overcome the defects that in the prior art, the product style is simple, and only single reflection or dazzling exists, and the fabric ...

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Номер записи: 4
06-06-2023 дата публикации

Data collection method for AUV (Autonomous Underwater Vehicle) and underwater wireless sensor network

Номер: CN116233784A
Автор: LIU SHUAI, WANG JINGJING, XU JINYUN, SHI WEI, YAN SHEFENG, QIAO GANG, NIU QIUNA, XU LINGWEI
Принадлежит:

The invention discloses a data collection method for an AUV (Autonomous Underwater Vehicle) and an underwater wireless sensor network, and belongs to the technical field of underwater communication. According to the method, firstly, all sensor nodes are divided into different clusters, and each cluster elects a cluster head for interactive communication with an AUV (Autonomous Underwater Vehicle); then the AUV goes to the nearest cluster and sends an activation data packet to a cluster head, after the cluster head is activated, the cluster enters a wake-up stage, then the cluster head sends a wake-up data packet to a member node, necessary information of physical layer power control is embedded in the wake-up data packet, and the member node of the cluster performs power control according to the information; and finally, the clusters enter a data transmission stage, the cluster member nodes send data to the cluster head, and the AUV receives a data packet from the cluster head until all ...

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Номер записи: 5
08-06-2016 дата публикации

Inter -city railway is with a letter mountain type roof beam

Номер: CN0205295907U
Автор: LU CHUNFANG, HE HUAWU, SUN SHULI, WANG ZHEN, SU WEI, SHI WEI, SHANG YAOZHAO, ZHANG SHANG
Принадлежит:

... 本实用新型公开了种城际铁路用简支山型梁，该城际铁路山型梁为简支结构，山型梁的梁体由底板、两侧对称设置的边腹板、中间腹板、各腹板顶部的上翼缘板组成。该梁型基本为对称结构，两侧边腹板自下而上向外侧倾斜，中间腹板与底板垂直。在底板上连接有承轨台，沿梁长方向固定有供电装置、牵引变及电力电缆支撑体、通信及信号光电缆支撑体。本实用新型采用简支山型梁构造，利用底板支撑轨道及列车，降低了桥上轨道标高和线路整体高度，上翼缘板还可兼做人行通道，结构有效利用率高，同时能防止列车脱轨后冲出桥梁，降噪性好，减小了对周边环境的影响，具有单线U梁底板薄和双线U梁横向刚度大的优点，适用于城际铁路15~40米跨度的简支桥梁。 ...

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Номер записи: 6
18-07-2023 дата публикации

Fancy reflective fabric and preparation method thereof

Номер: CN116449471A
Автор: WANG SHIJIE, ZHA WEIQIANG, SHI WEI, ZENG QI
Принадлежит:

The invention discloses fancy reflective cloth. The fancy reflective cloth structurally comprises glass beads, an adhesive B, a metal layer, an adhesive A and base cloth from top to bottom in sequence. The polyurethane polymer with the molecular weight of 50000-200000 and the viscosity of 20000-30000 mpa.s is adopted as the adhesive A, so that an excellent bonding effect between the base cloth and the metal layer can be realized, the bonding fastness is improved, and the washing resistance is improved. And the glass beads with the refractive index of 1.5-2.2 are adopted, after being wrapped by the adhesive B, the glass beads and the metal layer act together to generate an excellent light reflection effect, and different light reflection patterns can be realized through different arrangement modes among the glass beads, so that the light reflection effect is further optimized. Meanwhile, the mode of overall coating of the surface of the base cloth is not adopted, the structure that the metal ...

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Номер записи: 7
04-07-2023 дата публикации

Underwater sensor network cross-layer topology method based on potential game

Номер: CN116390046A
Автор: GAO JIA, WANG JINGJING, SHI WEI, HAN XUEYAN, XU LINGWEI, GU JIANLEI
Принадлежит:

The invention discloses an underwater sensor network cross-layer topology method based on a potential game, and belongs to the field of underwater sensor network energy saving. According to the method, firstly, establishment of a neighbor set and acquisition of related information are completed through interaction of control information; then, an optional power set is determined and sorted in a descending order, cross-layer parameters such as connectivity, residual energy and node delay are introduced into a revenue function, a potential game model is established, and proper transmitting power is selected for nodes in an alternate game mode; and finally, updating the adjacent nodes and the communication radius according to the change of the transmitting power, and dynamically adjusting the network topology structure. According to the method, the Nash equilibrium point of the ordinal number potential game model is ensured, the benefit maximization of each node is kept through the selection ...

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Номер записи: 8
08-06-2016 дата публикации

A single line letter U roof beam for inter -city railway

Номер: CN0205295914U
Автор: WANG ZHEN, SU WEI, BAI HONGGUO, SONG SHUNCHEN, SHI WEI, SHANG YAOZHAO, ZHANG SHANG
Принадлежит:

... 本实用新型公开了种城际铁路用单线简支U梁，该城际铁路单线U梁为简支结构，？U梁的梁体由底板、两侧对称设置的腹板及腹板顶部的上翼缘板组成，两侧腹板自下而上向外侧倾斜，在底板上连接有单线的承轨台，沿梁长方向固定有供电装置、牵引变及电力电缆支撑体、通信及信号光电缆支撑体。本实用新型采用单线简支U梁构造，施工方法灵活方便，降噪性好，减小了对周边环境的影响，同时能防止列车脱轨后冲出桥梁，上翼缘板还可兼做人行通道，结构有效利用率高，利用底板支撑轨道及列车，降低了桥上轨道标高和线路整体高度，综合经济性好，适用于城际铁路15~35米跨度的简支桥梁。 ...

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Номер записи: 9
13-08-2021 дата публикации

Underwater acoustic communication modulation mode identification method based on feature fusion and lightweight hybrid neural network

Номер: CN113259288A
Автор: WANG JINGJING, ZHANG WEILONG, HUANG ZIHAO, WU CHENG'AN, YANG XINGHAI, SHI WEI, SUN YANING, SUN ZHENG, ZHANG XIANGGUANG, 王景景, 张威龙, 黄子豪, 吴承安, 杨星海, 施威, 孙雅宁, 孙正, 张祥光
Принадлежит:

The invention discloses an underwater acoustic communication modulation mode identification method based on feature fusion and a lightweight hybrid neural network. The method comprises the following steps: firstly, extracting entropy features and morphological features in underwater acoustic signals; processing the obtained features by using a linear discriminant analysis method to obtain specific features; constructing a shallow layer of the hybrid neural network by using a long-short-term neural network; carrying out improvement based on a YOLO v2 neural network, taking YOLO v2 neural network as a deep layer of the hybrid neural network, combining the two neural networks, and extracting abstract features of the underwater acoustic signals; combining the abstract features with the specific features to obtain a complete feature set; inputting the feature set into the neural network to realize accurate identification of an underwater acoustic signal modulation mode; training the network ...

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Номер записи: 10
22-06-2016 дата публикации

Cabin cabinet

Номер: CN0205321716U
Автор: WANG CHAO, ZHOU JIA, ZHOU XUE, ZHANG QIONG, ZHANG LIWEI, SHI WEI
Принадлежит:

... 本实用新型公开了一种舱柜，舱柜为立方体状，包括六个蜂窝板、十二个型材和八个榫头，每个铝蜂窝板包括蜂窝芯和蒙皮，蒙皮通过粘胶剂粘接在蜂窝芯上下表面；每个型材包括一个方管和两个U型槽，两个U型槽分别设置在方管相互垂直的两个表面上，且U型槽的宽度与方管的端面边长相等，U型槽的长度与方管的长度相等；每个榫头包括三个相互垂直的榫头分支。六个铝蜂窝板为舱柜的六个墙面，十二个型材构成舱柜的十二棱，相互垂直的两个铝蜂窝板的相邻边缘分别卡设在一个型材的两个U型槽中，八个榫头位于舱柜的八个角，每个榫头的三个分支分别插设于三个型材的方管内腔中。在方舱事先做好的前提下，可将舱柜快速方便的安装于舱内，操作快捷。 ...

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Номер записи: 11
04-08-2023 дата публикации

Projection cloth with novel micro-bead structure and preparation process of projection cloth

Номер: CN116540488A
Автор: WANG SHIJIE, ZHA WEIQIANG, SHI WEI, ZENG QI
Принадлежит:

The invention discloses a novel projection cloth with a micro-bead structure, the projection cloth sequentially comprises a base cloth, a composite adhesive layer and a light condensation layer from bottom to top, and the light condensation layer comprises a light condensation microstructure and a light reflection coating. According to the projection screen, the cured resin spherical structure is formed through reaction of the polyurethane resin, the isocyanate curing agent and the initiator, so that the projection screen has certain light transmittance, meanwhile, too large difference of pictures at different angles cannot be caused, and the viewing angle of the projection screen is enlarged. And the light-gathering microstructure adopts a 1/2 spherical outer surface, and the light-gathering microstructure and the reflective coating made of a silver material act together, so that the picture brightness of the projection screen can be improved, and the color resolution and saturation of ...

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Номер записи: 12
09-05-2023 дата публикации

Signal modulation mode identification method based on One2ThreeNet

Номер: CN116094885A
Автор: WANG JINGJING, HUANG ZIHAO, YU ZEHUI, SHI WEI, YAN SHEFENG, QIAO GANG, WANG HAIHONG
Принадлежит:

The invention discloses a signal modulation mode identification method based on One2ThreeNet, and belongs to the technical field of underwater acoustic communication. The method comprises a microscopic scale selection step, an underwater acoustic signal preprocessing step, a neural network construction step, a neural network training step and an underwater acoustic signal modulation mode identification step. According to the method, a micro-scale concept and a time sequence feature extractor One2Three Block are provided, detailed and complete time sequence feature extraction is carried out on signals from three scales, and the effectiveness of the time sequence features is ensured; according to the method, a dual-compression excitation convolution module Dual-Stream SE Block is provided, on one hand, the network width is widened, the diversity of feature extraction is ensured, on the other hand, the weight of each channel of the feature map is optimized, invalid feature expression is inhibited ...

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Номер записи: 13
02-06-2023 дата публикации

High-precision thin-wall guide sleeve machining method

Номер: CN116197609A
Автор: SHI WEI, JIANG SHUI, WEI KUN, HE XUEBIN, CHEN XIANGLI, TAO ZEXU, ZHOU HUI, ZHOU YU
Принадлежит:

The high-precision thin-wall guide sleeve machining method comprises the following steps that the outer circle, an inner hole and two end faces of a guide sleeve are subjected to rough turning, and machining allowance is reserved; the outer circle, the inner hole and the two end faces of the guide sleeve are roughly turned, and machining allowance is reserved; machining deformation is greatly reduced, the technical problem of machining of the high-precision thin-wall guide sleeve is solved, and the machining qualification rate is increased.

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Номер записи: 14
08-06-2016 дата публикации

Urban rail transit is with continuous U roof beam

Номер: CN0205295908U
Автор: SUN SHULI, WANG ZHEN, SU WEI, SHI WEI, SHANG YAOZHAO, ZHANG SHANG, SUN DABIN, LIU KAI, WANG SHUMIN, CHEN FENG, ZHANG SUJIE, LIU AIQIAO, HOU JIEPING, LI SHIGUANG, JIANG FEI
Принадлежит:

... 本实用新型公开了种城市轨道交通用连续U梁，该U梁为连续结构，由两端的边跨和中间的个或多个中跨组成，边跨和中跨连成体，两个边跨的外端部由边墩支撑；边跨和中跨的连接处，及相邻两个中跨的连接处由中墩支撑；U梁的梁体由底板、两侧对称设置的腹板及腹板顶部的上翼缘板组成，在底板上连接有双线或者单线的承轨台，沿梁长方向固定有供电装置、牵引变及电力电缆支撑体、通信及信号光电缆支撑体。本实用新型采用连续U梁构造，利用底板支撑轨道及列车，降低了桥上轨道标高和线路整体高度，且具有降噪性能好，对周边环境的影响小，防列车落桥安全性好、结构可兼做桥面附属构造等优点，同时梁长可达300m以上，可以满足道岔区不设伸缩缝的要求。 ...

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Номер записи: 15
07-07-2023 дата публикации

Bionic signal processing method based on wavelet transform and generative adversarial network

Номер: CN116403590A
Автор: WANG JINGJING, CAO RUNQI, LIU SHUAI, SHI WEI, YANG XINGHAI, WANG MENG, JIANG SHUAI, JIANG JIAMING
Принадлежит:

The invention discloses a bionic signal processing method based on wavelet transform and a generative adversarial network, and belongs to the technical field of underwater acoustic signal processing. The method comprises the following steps: firstly, carrying out wavelet decomposition on marine mammal sounds to obtain wavelet components; designing and building a bionic generative adversarial network for the one-dimensional audio data set; inputting the third-stage wavelet high-frequency component and the modulation signal into a bionic generative adversarial network for training; the trained encoder carries out information embedding on a wavelet component, a bionic signal is obtained through wavelet reconstruction, the bionic signal is received by a receiver through an ocean channel and then is subjected to wavelet decomposition, and a modulated signal embedded in a third-stage wavelet high-frequency component is decoded by using the trained decoder. According to the method, high-concealment ...

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Номер записи: 16