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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 11. Отображено 11.
15-08-2023 дата публикации

Preparation method of Roman musk

Номер: CN116589354A
Автор: YING DENGYU, LI JINQIAN, TANG LIAN, DAI KUN, TANG SHANGMING, MA PANPAN, XIE XIANGBAI, WEI RONGLONG, ZHAO CHENGYE, CHEN FENG
Принадлежит:

The invention relates to a preparation method of Roman musk, which comprises the following steps: carrying out transesterification on herb alcohol and halogenated ester with a structural formula as shown in a formula (1) under the action of a transesterification catalyst to obtain an intermediate with a structural formula as shown in a formula (2), in which R is a halogen element; and reacting the intermediate with propionate under the action of a phase transfer catalyst to obtain Roman musk. According to the preparation method of the Roman musk, the raw materials are easy to obtain, the production cost is low, and the yield of the Roman musk is high.

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Номер записи: 1
30-07-2014 дата публикации

Propylene polymerization production process online forecasting system and method based on group intelligent optimization

Номер: CN103955170A
Автор: LIU XINGGAO, ZHAO CHENGYE, LI JIUBAO, ZHOU YEXIANG, ZHANG ZHIMENG
Принадлежит:

The invention discloses a propylene polymerization production process optimal online forecasting system based on group intelligent optimization. The system includes a propylene polymerization production process, an on-site intelligent instrument, a control station, a DCS database for data storage, an optimal online forecasting system based on group intelligent optimization and a melt index forecasting value display instrument. The on-site intelligent instrument and the control station are connected with the propylene polymerization production process and the DCS database. The optimal online forecasting system is connected with the DCS database and the forecasting value display instrument. The optimal online forecasting system based on the group intelligent optimization includes a model updating module, a data preprocessing module, a PCA principle component analysis module, a neural network model module and a group intelligent optimization module. A forecasting method which is realized through ...

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Номер записи: 2
23-06-2023 дата публикации

Preparation method of cyclamen aldehyde

Номер: CN116283521A
Автор: HU CHENGMING, SHEN LIN, YING DENGYU, ZHAO CHENGYE, WU JINPING, GAO XINLU, MA PANPAN, TANG SHANGMING
Принадлежит:

The invention relates to a preparation method of cyclamen aldehyde. The preparation method comprises the following steps: providing cuminol; adding chloride into the cuminol preparation, enabling the cuminol and the chloride to react under the action of a catalyst to obtain an intermediate with a structural formula as shown in a formula (1), adding a compound with a structural formula as shown in a formula (2) into the intermediate preparation in batches, and in the formula (2), R is alkyl; and reacting the intermediate with the compound under the action of a catalyst to obtain cyclamen aldehyde. The preparation method of cyclamen aldehyde is simple to operate and small in environmental pollution, and the yield of the obtained cyclamen aldehyde is high.

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Номер записи: 3
17-12-2014 дата публикации

Catalyst for catalyzing reaction of dichlorobiphenyl diamine and ammonia and preparation method of tetraminobenzidine

Номер: CN104209130A
Автор: PAN ZHIWEI, LI XIANMING, TIAN GUOXIONG, DONG LIUHONG, ZHANG HAO, ZHAO CHENGYE, LI DAZHAO
Принадлежит:

The invention first provides a catalyst for catalyzing reaction of dichlorobiphenyl diamine and ammonia, wherein the catalyst contains iron oxide, manganese oxide and silicon oxide. The invention also provides a corresponding preparation method of the above catalyst. The invention also provides a preparation method of 3,3',4,4'-tetraminobenzidine. The method uses dichlorobiphenyl diamine and ammonia as reaction materials and in the ferromanganese oxide as a catalyst for preparation of tetraminobenzidine in the presence of a solvent and ultrasonic. The preparation method of tetraminobenzidine is simple, can be conducted under low temperature and low pressure, and can reach high yield and selectivity of 3,3',4,4'-tetraminobenzidine; at the same time, reaction products and the catalyst can be easily separated; and the method is suitable for industrialized production of 3,3',4,4'-tetraminobenzidine.

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Номер записи: 4
10-06-2015 дата публикации

Dry-process recycling method for chloro-silicane-containing slurry in polycrystalline silicon production process

Номер: CN104692391A
Автор: GUO BO, GAO ZHENGQI, TANG MINGYUAN, TU XIAMING, WANG SHAOZU, ZHAO CHENGYE
Принадлежит:

The invention discloses a dry-process recycling method for chloro-silicane-containing slurry in a polycrystalline silicon production process. The dry-process recycling method comprises the following steps: step I, performing rotary evaporation: feeding chloro-silicane-containing slurry into a dryer, starting a rotary stirrer on the end head of the dryer, continuously rotating and stirring chloro-silicane slurry in tube pass of the dryer, introducing low-pressure steam into a dryer jacket, continuously transmitting heat to the chloro-silicane slurry in tube pass of the dryer, and evaporating low-boiling-point chloro-silicane of the chloro-silicane slurry into a gas; step II, condensing and recycling: introducing the chloro-silicane gas into the top of a recycling tank to perform first-stage condensation and then perform second-stage condensation, discharging residual uncondensed gas to waste gas, refluxing chloro-silicane liquid obtained by the first-stage condensation and the second-stage ...

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Номер записи: 5
30-09-2015 дата публикации

Palladium-carbon catalyst for preparing furan through furfural decarbonylation process, and preparation method thereof

Номер: CN104941634A
Автор: LIU JIANHUA, WU YUMIN, LAI YULONG, MENG LINGKUN, LIU CHANGLE, YANG RONG, ZHAO CHENGYE
Принадлежит:

The invention provides a method for preparing a palladium-carbon catalyst for preparing furan through the furfural decarbonylation process. According to the method, a precursor complex palladium chloride of an active component or a salt mixture of the palladium chloride with other noble metal salts is mixed with aqueous ammonia to form a palladium ammonia complex solution. The palladium ammonia complex solution is mixed with an auxiliary alkali metal salt and a carrier activated carbon to steep the auxiliary alkali metal salt and the carrier activated carbon and add a reducing agent so as to cause the occurrence of chemical reduction reaction. After that, through the solid-liquid separation process, the palladium-carbon catalyst can be obtained. The service life of the catalyst is significantly prolonged compared with that of a conventional catalyst in the prior art. Meanwhile, the furan production efficiency based on the furfural decarbonylation process is improved. The catalyst prepared ...

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Номер записи: 6
30-05-2023 дата публикации

Multi-robot path planning method and device

Номер: CN116184996A
Автор: LI JING, TAN WENZHE, WEI XIGUANG, ZHAO CHENGYE, LI HONGBO, HAN HAO
Принадлежит:

The invention provides a multi-robot path planning method and device. The multi-robot path planning method comprises the following steps: acquiring to-be-driven information of a plurality of robots; predicting conflict information of each robot according to the to-be-driven information of each robot; the conflict information of the robots generating the first conflict is counted, the target robots with the statistical results meeting the re-planning conditions corresponding to the first conflict are determined, and the first conflict is any kind of conflict; and performing path re-planning on the target robot according to the first conflict. The method comprises the following steps: according to obtained conflicts between a plurality of robots and other robots, predicting conflict information of each robot, carrying out statistics on the conflict information of the robots generating a first conflict, determining a target robot meeting a re-planning condition corresponding to the first conflict ...

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Номер записи: 7
04-06-2014 дата публикации

Multimode optimal soft measuring instrument and method for polymerization production process of propylene

Номер: CN103838207A
Автор: LIU XINGGAO, ZHAO CHENGYE, LI JIUBAO, ZHOU YEXIANG, ZHANG ZHIMENG
Принадлежит:

The invention discloses a multimode optimal soft measuring instrument for the polymerization production process of propylene. The multimode optimal soft measuring instrument comprises a propylene polymerization production process achievement piece, an on-site intelligent instrument, a control station, a DCS database used for storing data, a multimode optical soft measuring instrument body, and a melt index soft measurement value display instrument. The on-site intelligent instrument and the control station are connected with the polymerization production process achievement piece and the DCS database. The optical soft measuring instrument body is connected with the DCS database and the soft measurement value display instrument. The multimode optical soft measuring instrument body comprises a model updating module, a data preprocessing module, a PCA module and a weighting multimode RBF nerve network optimization module. The invention provides a soft measuring method achieved through the ...

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Номер записи: 8
28-05-2014 дата публикации

Propylene polymerization production process optimal prediction system based on multimode crowd-sourcing and method

Номер: CN103824121A
Автор: LIU XINGGAO, ZHAO CHENGYE, LI JIUBAO, ZHOU YEXIANG, ZHANG ZHIMENG
Принадлежит:

The invention discloses a propylene polymerization production process optimal prediction system based on multimode crowd-sourcing. The system comprises a propylene polymerization production process, a field intelligent instrument, a control station, a DCS database which stores data, an optimal prediction system based on multimode crowd-sourcing and a melt index prediction value display instrument. The field intelligent instrument and the control station are connected with the propylene polymerization production process, and are connected with the DCS database. The optimal prediction system is connected with the DCS database and the melt index prediction value display instrument. The optimal prediction system based on multimode crowd-sourcing comprises a model updating module, a data preprocessing module, a PCA principal component analysis module and a multimode crowd-sourcing optimization module. The invention further provides a prediction method which is realized by using the prediction ...

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Номер записи: 9
02-05-2023 дата публикации

Method for selecting boundary line point and dental CAD device therefor

Номер: CN116056661A
Автор: CHOI KYOO-OK, ZHAO CHENGYE, KIM HYUNG-CHUL
Принадлежит:

A method for selecting a border line point and a dental CAD apparatus for the method are disclosed. According to the method for selecting the marginal line point according to one embodiment, when a user selects the marginal line point, recommendation is performed in a manner that a preset optimal marginal line point is shown on a screen in advance, and therefore, the inconvenience that the user must find and select an accurate point can be reduced.

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Номер записи: 10
05-05-2023 дата публикации

Backfill compaction testing device

Номер: CN116067832A
Автор: WANG JUNPENG, GAO CHAO, GU DUANYU, SONG ZHENGYANG, SONG YONGTAO, HU YONGYUE, ZHANG YU, ZHONG WEICI, LIU ZHIBO, ZHAO KAIWEI, JIANG RUIYUN, ZHAO CHENGYE, SONG HAITAO, REN PANPAN
Принадлежит:

The invention discloses a backfill compaction testing device, and belongs to the technical field of engineering equipment, the backfill compaction testing device comprises a support and a testing mechanism, the testing mechanism comprises a stirrer, a soil storage box, a water tank, a compaction assembly, a support assembly, an auxiliary assembly and a testing assembly; the support is placed above a soil tank, the position of the support can be adjusted through the supporting assembly so as to adapt to the angle of a foundation pit slope, the support can be stably placed on a foundation pit, and backfill compaction operation can be conveniently carried out. Through the auxiliary assembly and the compaction assembly, the backfill soil can be fully and uniformly compacted, and the compaction effect is improved; through the stirrer, the soil storage box and the water tank, the grading combination of soil particles with different particle sizes and different water contents can be accurately ...

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Номер записи: 11