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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.
30-06-2023 дата публикации

Lightweight aggregate concrete mold for preventing floating of lightweight aggregate and preparation method of concrete

Номер: CN116352856A
Автор: YAO WEIJING, WANG CHENGJUN, PANG JIANYONG, LIU YUSHAN, LIU YU, HAN JINXIU
Принадлежит:

The invention is suitable for the technical field of indoor tests of concrete, and provides a lightweight aggregate concrete mold for preventing lightweight aggregate from floating and a preparation method of concrete. The concrete mold is composed of a first cover body, a middle main body and a second cover body. The first cover body and the second cover body can be placed in the middle body, and the area of the first cover body and the area of the second cover body are the same as the cross sectional area in the middle body. The invention provides a preparation method of light aggregate concrete, which comprises the following steps: putting light aggregate, stones, sand and 70% of water into a concrete mixer, stirring for 0.3-1 minute, adding cement and an additive, stirring for 0.3-1 minute, finally adding 30% of water, and stirring for 1-2 minutes to prepare a light aggregate concrete mixture. According to the method, the mixture is put into the mold to be vibrated step by step and ...

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Номер записи: 1
02-05-2023 дата публикации

Data center equipment operation data dual-scale prediction method

Номер: CN116048910A
Автор: ZHUANG YAN, DONG LIANG, GUO YUE, ZHU ZHAOYU, LI DESHI, HU YAODONG, KE WANGSONG, LI XIANG, LIANG YUAN, HUANG CHAO, ZHOU ZHENG, LIAO RONGTAO, YUAN HUI, HE LIANG, FENG WEIDONG, WANG JIE, WANG YIXI, LUO XIAN, YAO WEIJING, HU HUANJUN, LI LEI, QIU SHUANG, ZHU GUOWEI, DAI DANGDANG, ZHAN WEI, ZHOU LEI
Принадлежит:

The invention relates to a dual-scale prediction method for operation data of data center equipment. The dual-scale prediction method comprises the following steps: reading time series data generated by operation of the data center equipment; obtaining a large-scale fluctuation sequence and a small-scale fluctuation sequence; in the large-scale fluctuation sequence, in order to reduce the calculation complexity and predict the long-term change trend of the equipment state, data at all moments in the large-scale fluctuation sequence are combined to form all time periods, namely a large-scale equipment operation state sequence, and the time periods are used as scales for predicting the large-scale equipment operation state sequence; performing large-scale prediction by using a sliding window k-nearest neighbor prediction method and a pre-matching mode; performing small-scale prediction by using an AR prediction model; and obtaining equipment operation data at the next moment based on the ...

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Номер записи: 2
08-08-2023 дата публикации

Device and method for preparing concrete doped with rice hull ash

Номер: CN116553866A
Автор: ZHAO CHUANXIANG, MIAO YUSHENG, PANG JIANYONG, ZHANG XUEGONG, TANG YISHENG, HUANG YISHOU, YAO WEIJING, LIU TIANYOU, SHEN YANG, HE ZIMING, SUN JIAN
Принадлежит:

The invention relates to the technical field of concrete preparation, in particular to a rice hull ash doped concrete preparation device and method.The rice hull ash doped concrete preparation method comprises the steps that rice hulls are combusted at high temperature to obtain fine rice hull ash, then sand, pebbles and half of water are mixed and stirred to obtain mortar, then an adhesive is added into the mortar to be stirred and mixed for 2-5 min, and the mixture is stirred and mixed for 2-5 min; finally, cement, a grinding aid, the remaining water and the prepared fine rice hull ash are added into the mixture and mixed for 3-5 min, concrete is obtained, the rice hull ash contains active ingredients such as nanoscale SiO2, the active ingredients and a product Ca (OH) 2 obtained after cement is hydrated can be subjected to secondary hydration, hydrated calcium silicate (C-S-H) gel is generated, the fine rice hull ash can optimize the grading structure of the concrete, and therefore the ...

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Номер записи: 3
28-04-2023 дата публикации

Network deployment method with maximum communication service coverage rate

Номер: CN116033437A
Автор: LIANG YUAN, DONG LIANG, LI XIANG, LIU XIN, KE WANGSONG, LI DESHI, ZHU ZHAOYU, HUANG CHAO, GUO YUE, ZHUANG YAN, DAI JUNFENG, LIAO RONGTAO, YUAN HUI, HE LIANG, WANG JIE, LI LEI, LUO XIAN, YAO WEIJING, WANG SHENGWEI, CHEN SHI, WEI XIAOYAN, WANG YIXI, MENG HAOHUA, ZHOU LEI
Принадлежит:

The invention relates to a network deployment method with the maximum communication service coverage rate, which comprises multi-unmanned aerial vehicle cooperative flight deployment planning and comprises the following specific steps: establishing a hovering-flight trajectory model by analyzing sight distance and non-sight distance communication link characteristics, and calculating the number of unmanned aerial vehicles and the number of deployment time slots; searching an optimal hovering position where M unmanned aerial vehicles are connected in a single time slot, and ensuring that the user coverage rate is maximized under the condition that multiple unmanned aerial vehicles are connected in the time slot; a multi-unmanned aerial vehicle cooperative flight trajectory planning algorithm is expanded to K time slots, K deployment points of each unmanned aerial vehicle are solved, and a mobile deployment trajectory of the multiple unmanned aerial vehicles is obtained; and obtaining a multi-unmanned ...

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Номер записи: 4
24-02-2010 дата публикации

Preparation method of coal-based granular activated carbon with molecular sieving effect and application thereof in pressure-transformation adsorption and separation concentrated gas

Номер: CN0101653721A
Автор: GU MIN, YAO WEIJING, XIAN XUEFU, MIN GU, WEIJING YAO, XUEFU XIAN
Принадлежит:

The invention relates to a preparation method of coal-based granular activated carbon with molecular sieving effect and an application thereof for concentrating strongly adsorptive components of methane, carbon dioxide, and the like in mixed gas with methane and carbon dioxide by a direct deflating step and an inverse vacuum pumping step. The preparation method of coal-based granular activated carbon comprises the following steps: (a) pulverizing coal; (b) adding adhesives of coal tar, and the like into coal powder, and evenly mixing by adding water; (c) molding cylindrical granules, and drying; (d) carbonizing the molded cylindrical granules under nitrogen protection; (e) activating the carbonized cylindrical granules by vapor under the nitrogen protection; and (f) cooling the carbonizedcylindrical granules at room temperature, cleaning by water, and drying after the carbonized cylindrical granules are discharged. The prepared coal-based granular activated carbon has low cost, low pollution ...

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Номер записи: 5
08-03-2017 дата публикации

Even watered laboratory concrete mixer

Номер: CN0205997177U
Автор: FU TENGFEI, YAO WEIJING
Принадлежит: UNIV ANHUI SCIENCE & TECH, ANHUI UNIVERSITY OF SCIENCE & TECHNOLOGY

The utility model provides an even watered laboratory concrete mixer relates to the indoor experimental field of civil engineering. Include to add water installation, evenly add water steel sheet and rabbling mechanism that adding the water installation and passing through welding installation on the rabbling mechanism, the steel sheet of evenly adding water passes through the hinge hub connection and on the rabbling mechanism, adds the water installation and include water containing ware, stereoplasm water pipe, soft water pipe and rivers control valve, through the interact of each parts, evenly adds water in the time of can realizing the concrete mix to can add the water yield and add water the number of times by the accurate control, the utility model discloses structural design is simply ingenious, and the preparation is convenient, watered homogeneity when having improved concrete mixing for characteristic of materials is stable, and the test result is more accurate reliable.

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Номер записи: 6
12-05-2023 дата публикации

Directed link dynamic prediction method for multi-dimensional service sharing equipment of data center

Номер: CN116112379A
Автор: DONG LIANG, ZHUANG YAN, KE WANGSONG, LI XIANG, LI DESHI, HUANG CHAO, HU YAODONG, ZHU ZHAOYU, LIANG YUAN, GUO YUE, GUO ZHAOFENG, ZHANG YONG, LIAO RONGTAO, HE LIANG, FENG WEIDONG, WANG JIE, WANG YIXI, LI LEI, LUO XIAN, WANG SHENGWEI, XU NING, YAO WEIJING, YE YUXUAN, ZHAN WEI
Принадлежит:

The invention relates to a directed link dynamic prediction method for multi-dimensional service sharing equipment of a data center. The directed link dynamic prediction method comprises the following specific steps: calculating an Adamic-Adaar index of a kth-dimensional network; calculating a service flow dependency index of the kth-dimension network; dynamically empowering network links of all dimensions and all time sampling; designing a prediction model for link modeling of the node pairs based on an exponentially weighted moving average method; modeling an expression containing expectation and covariance of a smoothing coefficient alpha based on a Gaussian mixture model; carrying out objective function modeling and modeling constraint conditions; the obtained optimal solution is the value of the corresponding smoothing coefficient alpha; and performing iterative prediction on the network at the T + 1 moment according to the established prediction model, and outputting a prediction ...

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Номер записи: 7
07-07-2023 дата публикации

Mine thermal insulation grouting material and preparation method thereof

Номер: CN116396048A
Автор: YAO WEIJING, LIU TAO, SHENG HONGXING, XU XIAOJIAN, CAI HAIBING, MA XIANG
Принадлежит:

The invention discloses a mine heat insulation grouting material and a preparation method thereof, the raw materials comprise 110-280 parts of cement, 130-330 parts of water, 12-40 parts of glass beads and 420-740 parts of water glass, the water cement ratio is 0.6-1.2, and the volume ratio of water glass to glass bead cement paste is 0.4-1.0. The preparation method comprises the following steps: 1, preparing required raw materials including cement, water, glass beads and water glass, pre-wetting the glass beads for 1 hour for later use, and meanwhile, providing a calculation method for the dosage of each raw material; 2, putting the pre-wetted glass beads and 70% by weight of water into a stirrer, and stirring for 60 seconds; 3, adding cement into the stirrer, and stirring for 60 seconds; and 4, adding the water glass and the rest 30% by weight of water into the stirrer, and stirring for 30 seconds to obtain the heat-insulating grouting material for the mine. The heat insulation grouting ...

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Номер записи: 8
02-05-2023 дата публикации

Data center network equipment board card level temperature inversion method, system and medium

Номер: CN116050248A
Автор: ZHUANG YAN, GUO YUE, LI XIANG, LI DESHI, HU YAODONG, HUANG CHAO, DONG LIANG, ZHU ZHAOYU, KE WANGSONG, LIANG YUAN, GUO ZHAOFENG, LIAO RONGTAO, HE LIANG, FENG WEIDONG, WANG JIE, YUAN HUI, LONG FEI, WANG YIXI, WANG SHENGWEI, LUO XIAN, LI LEI, YAO WEIJING, WANG BOTAO, HU HUANJUN, ZHOU LEI
Принадлежит:

The invention relates to a data center network equipment board card level temperature inversion method and system and a medium, and the method comprises the following specific steps: collecting the interface data of each board card, the operation data of the equipment and the temperature data of the equipment in the historical operation process of the data center network equipment; performing data cleaning and normalization, and constructing a data set according to time alignment; carrying out dimension reduction on all interface data on the same board card through data fusion; designing a full-connection neural network model 1; designing a full-connection neural network model 2; respectively training the two full-connection neural network models; and inputting interface data of a target board card, wherein the output of the model 2 is the temperature of the target board card. By freezing the data of other board cards except the target board card, inversion of the temperature corresponding ...

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Номер записи: 9
23-06-2023 дата публикации

Preparation method of thermal insulation sprayed concrete for mine laneway

Номер: CN116283135A
Автор: YAO WEIJING, SHENG HONGXING, CAI HAIBING, MA XIANG, XU XIAOJIAN, PANG JIANYONG
Принадлежит:

The invention discloses a preparation method of heat-insulating shotcrete for mine laneways, which comprises the following steps: pre-wetting ceramsite, pottery sand and glass beads for 1 hour for later use; performing modified soaking treatment on the straw fibers by using a polyvinyl alcohol solution for 3 days for later use; the pre-wetted ceramsite, the pre-wetted pottery sand, the pre-wetted glass beads, the pre-wetted melon-seed-shaped pieces and the pre-wetted sand are evenly mixed, then the basalt fibers and the modified straw fibers are evenly scattered, and a mixture is prepared for use; the mixture and 70% of water are mixed for 0.5 min, then cement, fly ash and 30% of water are added and mixed for 0.5 min, the mixture is put into a wet spraying machine for spraying construction, and the thermal insulation sprayed concrete for the mine laneway is obtained. The preparation method can remarkably improve the heat insulation property and strength of the sprayed concrete, and has ...

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Номер записи: 10