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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.
16-05-2023 дата публикации

Seven-channel water valve adjusting mechanism

Номер: CN116123315A
Автор: ZENG NIANSHU, CAO LINGLI, LIU XIUZHENG
Принадлежит:

The invention discloses a seven-channel water valve adjusting mechanism which comprises a valve body, a sealing ring, a valve element, a steel shaft and a valve deck. The valve body is of a hollow structure, the sealing ring is arranged on the outer side of the valve element in a sleeved mode, the sealing ring and the valve element are connected in the valve body in an inserted mode, a steel shaft is arranged at the position of a central shaft of the valve element, a rotating hole is formed in the position of the axis of the valve deck, and the valve deck covers the outer side of the sealing ring and the outer side of the valve element and is fixedly welded to the valve body. The steel shaft is inserted into the rotating hole, so that the valve element rotates with the steel shaft as the axis. According to the seven-channel water valve adjusting mechanism, the external shape is not changed, meanwhile, the layout of the internal valve element is improved, the interior is divided into a plurality ...

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Номер записи: 1
09-09-2015 дата публикации

Preparation method for rubber peptizer DBD

Номер: CN104892475A
Автор: LIU WANXING, LIU XIUZHENG
Принадлежит:

The invention relates to the technical field of synthesis of chemical raw materials, in particular to a preparation method for a rubber peptizer DBD. The preparation method comprises the following steps: synthesizing 2-aminobenzothiazole; synthesizing 2,2'-disulfide diphenylamine; synthesizing 2,2'-dibenzoylamino diphenyl disulfide. The rubber prepared with the preparation method is good in peptization effect; no toxic substances generate during preparation; the body health of production workers is ensured; the technological process is simple; the production cost is low; the productivity is high.

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Номер записи: 2
18-04-2023 дата публикации

Rolling bearing cross-domain intelligent fault diagnosis method under small sample condition

Номер: CN115979647A
Автор: WANG BO, ZHANG MENG, XU HAO, WANG CHAO, YANG WENLONG, LIU XIUZHENG
Принадлежит:

The invention discloses a rolling bearing cross-domain intelligent fault diagnosis method under a small sample condition, relates to the field of mechanical intelligent fault diagnosis, and solves the problem that a target domain has no available label through artificial limitation of the number of training samples of a source domain and a target domain, simulation of small sample conditions and pseudo-label learning. Through calculating the cosine similarity of the source domain and the target domain and combining with the conditional adversarial network, deep sub-domain self-adaption is realized, meanwhile, the training sample size of the classifier is expanded, and the fault diagnosis accuracy of the fault diagnosis model under the small sample condition is improved.

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Номер записи: 3
05-06-2020 дата публикации

Harmful gas treatment device for earth pressure balance shield

Номер: CN0210685989U
Автор: WANG GUOYI, YANG JIANJUN, JIANG ZONGQUAN, MENG QINGMING, WANG CHENG, LIU XIUZHENG, TIAN CHUNYU
Принадлежит: POWERCHINA RAILWAY CONSTR CO LTD, POWERCHINA CHENGDU CONSTRUCTION INVESTMENT CO LTD, POWERCHINA RAILWAY CONSTRUCTION CO., LTD., POWERCHINA CHENGDU CONSTRUCTION INVESTMENT CO., LTD.

The utility model discloses a harmful gas treatment device for an earth pressure balance shield, which comprises a gas detection device, and the gas detection device comprises a filter screen, a waterinlet pipe, a first valve, a second valve, a storage box, a gas sensor and a third valve; a filter screen is arranged at the front end of the connecting pipeline which is communicated with the waterinlet pipe; a first valve is arranged on the water inlet pipe, and a second valve is arranged on the connecting pipeline which is connected with the storage box; the bottom of the storage box is connected with a water outlet pipe which is provided with a third valve; the storage box is further connected with a detection pipeline provided with a gas sensor. The harmful gas detection device can detect harmful gas and ensure the construction safety. The filter screen can block soil particles outside, only water and gas enter the storage box, and the filtering effect is achieved. The storage box is arranged ...

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Номер записи: 4
09-09-2015 дата публикации

Novel tackifying resin material for tire and synthesizing method

Номер: CN104892878A
Автор: LIU WANXING, LIU XIUZHENG
Принадлежит:

The invention discloses a novel tackifying resin material for a tire and a synthesizing method, and relates to the technical field of synthesis of chemical raw materials. The novel tackifying resin material for the tire and synthetic raw materials comprise tert-butyl phenol, phenyl dimethyl ethanolamine, tetramethylammonium and methylbenzene. The substituent group of the novel tackifying resin material has a certain branching degree. Compared to rubber molecules, the novel tackifying resin material has the advantages that the compatibility is excellent, the novel tackifying resin material is easy to disperse in a sizing material, the rubber bonding performance is good, the initial bonding performance is improved, the bonding holding period is prolonged, the tackifying effect is remarkable, the preparation process is simple, and the production cost is low.

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Номер записи: 5
05-06-2020 дата публикации

Novel earth pressure balance shield tunneling machine

Номер: CN0210685994U
Автор: WANG GUOYI, WANG TINGWEN, JIANG ZONGQUAN, WANG CHENG, MENG QINGMING, LIU XIUZHENG, FANG SHITAO
Принадлежит: POWERCHINA RAILWAY CONSTR CO LTD, UNIV XIHUA, POWERCHINA CHENGDU CONSTRUCTION INVESTMENT CO LTD, POWERCHINA RAILWAY CONSTRUCTION CO., LTD., XIHUA UNIVERSITY, POWERCHINA CHENGDU CONSTRUCTION INVESTMENT CO., LTD.

The utility model discloses a novel earth pressure balance shield tunneling machine which comprises a cutterhead, a front shield, a middle shield, a man gate, a shield tail, an erector, a main drive and a spiral conveyor, a front shield partition plate is arranged between the front shield and the middle shield, a middle partition plate is installed in the front shield to divide the front shield space into two parts, the front part is a soil cabin, and the rear part is an air cushion cabin; the lower part of the middle clapboard is not closed; the cutter head is connected with a large gear ringof the main drive through a supporting arm; a first gate, an air inlet and an air overflowing opening are formed in the front shield partition plate, and a second gate is arranged on the man lock; achannel door and a driven stirring rod are arranged on the middle partition plate; a driving stirring rod is arranged behind the cutter head; the first gate is arranged on the upper portion of the anterior ...

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Номер записи: 6
23-06-2023 дата публикации

Rock-soil static lateral pressure simulation device and effective stress calculation method

Номер: CN116296839A
Автор: WANG GUOYI, JIANG ZONGQUAN, WANG CHENG, JIN LI'AN, LIU XIUZHENG
Принадлежит:

The invention discloses a rock-soil static lateral pressure simulation device and an effective stress calculation method.The rock-soil static lateral pressure simulation device comprises a first metering cylinder, a liquid inlet box, an experiment cylinder, a liquid outlet box and a second metering cylinder; a supporting structure is arranged at the top of the liquid inlet box and comprises a hydraulic oil cylinder and an axial force meter, the axial force meter is arranged at the top of the liquid inlet box, and a hydraulic rod of the hydraulic oil cylinder abuts against the axial force meter; a plurality of pressure sensors are arranged on the side of the experiment cylinder. According to the rock-soil static lateral pressure simulation device and the effective stress calculation method, the rock-soil static lateral pressure of remolded soil or undisturbed soil taken on site can be directly measured, the actual site situation of the rock-soil on the side of a foundation pit is directly ...

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Номер записи: 7
02-09-2015 дата публикации

Preparation method of rubber-plastic cross-linking agent BIPB and application in rubber-plastic blending

Номер: CN104876846A
Автор: LIU WANXING, LIU XIUZHENG
Принадлежит:

The invention relates to a preparation method of a chemical material, more specifically to a preparation method of a rubber-plastic cross-linking agent BIPB and its application in rubber-plastic blending. The preparation method of the rubber-plastic cross-linking agent BIPB comprises the following steps: peroxidatic reaction of diisopropylbenzene; preparation of 2-hydroxy isopropylbenzene; and synthesis of the cross-linking agent BIPB. The invention also discloses composition of a rubber-plastic synthetic cross-linking system with the addition of the above cross-linking agent. The BIPB cross-linking agent prepared by the method has advantages of low toxicity, no taste, simple preparation technology, high safety, high yield and low cost. The prepared rubber-plastic synthetic cross-linking system has mechanical properties such as high tensile strength, high hardness and the like and has good chemical stability.

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Номер записи: 8
02-09-2015 дата публикации

Polyurethane adhesive for rubber tyres and preparation method thereof

Номер: CN104877615A
Автор: LIU WANXING, LIU XIUZHENG
Принадлежит:

The invention discloses a polyurethane adhesive for rubber tyres and a preparation method thereof and relates to the technical field of chemical material synthesis. The polyurethane adhesive comprises the following ingredients, by weight, 40-45 parts of ethylenediamine pentaerythritol, 33-36 parts of 2-hydroxyethyl isocyanate, 20-23 parts of polyglycerol polyricinoleate, 10-12 parts of benzimidazolyl substituted amine, 5-8 parts of urethane, 2-3 parts of cobalt stearate, 3-5 parts of tetrahydrofuran and 2-5 parts of a reinforcing agent. Expensive resorcinol is not used during the preparation process, and no toxic materials are generated so as to guarantee good health of production workers. The polyurethane adhesive can be used in tyres prepared from a novel aramid fiber skeletal material and also can be used in aero radial tyres and common tyres. The polyurethane adhesive has excellent effects.

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Номер записи: 9
18-07-2023 дата публикации

Synthetic method of resorcinol-itaconic acid-formaldehyde copolymer resin

Номер: CN116444747A
Автор: LIU WANXING, LIU XIUZHENG, CAO CUILIAN, CHEN WENWEN, WANG BAOLEI, YANG YANBIN, LIU DONG
Принадлежит:

The invention discloses a synthesis method of resorcinol-itaconic acid-formaldehyde copolymer resin, which comprises the following steps: dissolving itaconic acid in a formaldehyde aqueous solution to obtain a mixed solution for later use; adding water and resorcinol into a four-neck flask with a stirrer, a dropping funnel, a reflux device and a thermometer, starting stirring, dropwise adding the mixed solution obtained in the step 1 by using the dropping funnel for 0.5-1.5 hours, heating to react, adjusting the pH value to 6.5-7.0 by using a NaOH solution, carrying out reduced pressure distillation to remove water in a reaction system to obtain a reddish brown transparent viscous liquid, and removing the reddish brown transparent viscous liquid out of the reactor while the liquid is hot to obtain the resorcinol. And cooling to obtain the reddish brown transparent resorcinol-itaconic acid-formaldehyde copolymer resin. The molecular structure provided by the invention has both phenolic hydroxyl ...

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Номер записи: 10