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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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Форма поиска

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 12. Отображено 12.
15-10-2014 дата публикации

Ammonium polyphosphate with silane structure in main chain and preparation method and application thereof

Номер: CN104098789A
Автор: ZHU FENG, LIU JUNDING, WU WEIJUN
Принадлежит:

The invention relates to the technical field of flame retardant preparation, aims to solve the problems that ammonium polyphosphate is hard to coat, poor in water resistance, moisture-absorbed, poor in compatibility with resin, and easy to precipitate, proposes ammonium polyphosphate with a silane structure in a main chain and a preparation method and application thereof, the ammonium polyphosphate with the silane structure has a structural formula shown as formula (I), R1 and R2 are respectively independently selected from one of CH2=CH, CH3, C6H5, CH3O and C2H5O, n = 1-10000, and m is a positive integer from 1-200. The ammonium polyphosphate with the silane structure solves the technical problems that traditional ammonium polyphosphate is easy in moisture absorption and precipitation.

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Номер записи: 1
17-06-2015 дата публикации

Torsion-shear strength and deformation observation test device for soil cylindrical sample

Номер: CN104713791A
Автор: WANG ZHIJUN, LUO JIANWEN, LI RONGJIAN, DU ZHIWEI, LIU JUNDING, LIU BIN, PAN JUNYI, ZHOU PENG, SU JIAN, YANG PENG
Принадлежит:

The invention specifically provides a torsion-shear strength and deformation observation test device for a soil cylindrical sample. The integral structure comprises a main body part, a three-dimensional imaging and scanning mechanism, a confining pressure loading and measuring mechanism, a torque loading and measuring mechanism, an upper head fixing mechanism of a torque sensor, a sample fixing and mounting mechanism and a lubricating mechanism. The three-dimensional imaging scanner can be used for recording and collecting three-dimensional images of the sample in a test process; a test step is simplified by a confining pressure construction method of transmitting pressure through gas pressure and a novel volume change measuring method, and the soil sample measurement is remarkably changed; torque is transmitted by virtue of a transmission chain connecting a torque output shaft with an upper transmission shaft, and the torque sensor, a torque display, an absolute type angle displacement ...

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Номер записи: 2
09-05-2023 дата публикации

Unsaturated soil diffusion coefficient testing device based on resistivity test

Номер: CN116087274A
Автор: ZHANG WENJIE, HE HAIJIE, WANG SHIFANG, QIU ZHANHONG, LIU JUNDING, WANG BIN
Принадлежит:

The invention discloses an unsaturated soil diffusion coefficient testing device and method based on resistivity testing. Before the test, the conductivity of the soil sample under different water contents and different solute concentrations is calibrated in advance. Preparing a soil sample with preset dry density, saturating the soil sample with water, putting the soil sample into a soil sample barrel, closing a solution inlet valve, applying small air pressure into an air pressure chamber to discharge redundant water in the saturation step, applying first-stage air pressure, recording the amount of water flowing out, and calculating the moisture content of the soil sample; and carrying out a diffusion test under the water content, opening a solution inlet valve, and fitting the concentration distribution in the soil sample at different moments to obtain the diffusion coefficient under the water content. And after the concentration distribution of the solution in the soil sample tends ...

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Номер записи: 3
13-06-2023 дата публикации

Quick forming equipment for bubble concrete

Номер: CN116252392A
Автор: HE HAIJIE, LIU JUNDING, XU KE, LIN CAIYUAN, YANG JIE, TU WENYONG, WANG SHIFANG, YUAN JI, WANG BIN
Принадлежит:

The invention relates to the field of bubble concrete, and particularly discloses bubble concrete rapid forming equipment which comprises a stirring tank, a driving unit and a foaming unit, a communication port is formed in the stirring tank, the driving unit comprises a driver and a driving shaft, the driving shaft is arranged on the driver, and the other end of the driving shaft is concentrically and fixedly connected with the communication port; a hollow cavity is formed in the driving shaft in the axial direction, and an external connection hole is formed in the driving shaft in the radial direction; the foaming unit comprises a foaming machine, a foaming shell and a foaming output pipe are arranged on the foaming machine, the foaming shell is in a hollow annular barrel shape, the foaming shell surrounds the driving shaft and is concentric with the driving shaft, the two ends of the foaming output pipe communicate with the foaming shell and the external connection hole correspondingly ...

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Номер записи: 4
24-09-2014 дата публикации

Lithium battery electrolyte-resistant halogen-free flame-retardant polypropylene reinforced composite material and preparation method thereof

Номер: CN104059298A
Автор: ZHU FENG, HU YAN, WANG YIJIN, LIU JUNDING
Принадлежит:

The invention relates to a lithium battery electrolyte-resistant halogen-free flame-retardant polypropylene reinforced composite material which is characterized by containing the following components in parts by weight: 30-85 parts of polypropylene alloy, 5-20 parts of glass fiber, 10-40 parts of halogen-free flame retardant, 0.1-10 parts of oligomer, 0.1-10 parts of metal oxide and 0.1-10 parts of processing assistant. The preparation method comprises the following steps: (1) preparing the halogen-free flame retardant master batch: uniformly mixing components of the halogen-free flame retardant, adding into an internal mixer, adding the oligomer, uniformly mixing, performing devolatilization treatment, and granulating; (2) preparing the polypropylene alloy: uniformly mixing components of the polypropylene alloy, performing melt extrusion, and granulating; and (3) preparing the composite material: uniformly mixing the prepared polypropylene alloy, the prepared halogen-free flame retardant ...

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Номер записи: 5
07-09-2011 дата публикации

Machine vision method for identifying dial plate information of multi-pointer instrument

Номер: CN0102176228A
Автор: XINNAN FAN, JUNDING LIU, PENGHUA DING, QINGYUAN ZHENG, FAN XINNAN, LIU JUNDING, DING PENGHUA, ZHENG QINGYUAN
Принадлежит:

The invention provides a machine vision method for identifying the dial plate information of a multi-pointer instrument. The machine vision method mainly comprises the following steps of: acquiring an image containing information of the multi-pointer instrument, preprocessing the acquired image, positioning and marking a dial plate of the multi-pointer instrument in the image, segmenting the dialplate of the instrument in the image of the dial plate of the multi-pointer instrument, carrying out mathematical morphological filtering, extracting pointer characteristics in the dial plate by means of a human-eye-vision based jumping searching pointer and a human-eye-vision staring characteristic, calculating readings of the pointers of the instrument and the like. The machine vision method provided by the invention can be used for automatically carrying out vision identification on the information of the dial plate of the multi-pointer instrument in one image, and has the advantages of high ...

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Номер записи: 6
27-06-2012 дата публикации

High-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition

Номер: CN0102120875B
Автор: ZHU FENG, QI QIAOHONG, WANG YIJIN, LIU JUNDING, HU YAN, FENG ZHU, QIAOHONG QI, YIJIN WANG, JUNDING LIU, YAN HU
Принадлежит:

The invention relates to a high-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition. The invention aims to solve the technical problem of precipitation of the halogen-free flame-retardant polyester type polyurethane elastomer in a high-temperature high-moisture environment, maintain the softness and mechanical strength of the elastomer and conform to the RoHS instruction, thereby satisfying the requirements for high-performance electronic/electric appliance materials and the development characteristics of no halogen and flame retardancy. The invention is characterized in that the high-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition is prepared from the following components in percentage by weight: 5.0-40.0% of organic phosphonate flame retardant, 0.0-15.0% of nitrogen-containing compound, 1.0-15.0% of viscosity ...

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Номер записи: 7
15-10-2014 дата публикации

Migration resistant halogen-free intumescent flame retardant and preparation method and application thereof

Номер: CN104098775A
Автор: ZHU FENG, LIU JUNDING, WU WEIJUN
Принадлежит:

The invention relates to the technical field of flame retardants, aims to solve the problems that a halogen-free intumescent flame retardant is easy to absorb moisture, is poor in water resistance, poor in compatibility in polyolefin and other polymers, is easy to migrate and precipitate under high temperature and high humidity conditions, and is low in surface treatment processing efficiency, easy to be damaged, and the like, discloses a migration resistant halogen-free intumescent flame retardant and a preparation method and application thereof, the migration resistant halogen-free intumescent flame retardant and preparation method and application thereof has a structural formula (I) as shown in the specification, the migration resistant halogen-free intumescent flame retardant realizes the flame retardant intermolecular crosslinking, and improves the water resistance, especially migration resistance and precipitation performance under high temperature and high humidity conditions.

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Номер записи: 8
18-04-2023 дата публикации

Concrete aggregate regeneration system

Номер: CN115970805A
Автор: HE HAIJIE, LIU JUNDING, XU KE, LIN CAIYUAN, YANG JIE, TU WENYONG, WANG SHIFANG, YUAN JI, WANG BIN
Принадлежит:

The invention relates to the field of concrete aggregate regeneration, and particularly discloses a concrete aggregate regeneration system which comprises a conveying unit, a transportation unit, a first crushing unit, a second crushing unit and a third crushing unit, the transport unit comprises a first transport vehicle, a second transport vehicle and a third transport vehicle; each crushing unit structurally comprises a machine body, a first crushing part, a second crushing part and a separation part, each first crushing part comprises two first crushing rollers, each first crushing roller is provided with a plurality of first crushing teeth, each second crushing part comprises two second crushing rollers, and each second crushing roller is provided with a plurality of second crushing teeth; the separation part comprises a first screen, a second screen and a first channel, the first screen is arranged between the first crushing roller and the second crushing roller and can be opened, ...

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Номер записи: 9
10-08-2011 дата публикации

Halogen-free flame retardant polyether polyurethane thermoplastic elastomer capable of resisting high temperature and high humidity

Номер: CN0102146205A
Автор: FENG ZHU, YAN HU, QIAOHONG QI, JUNDING LIU, YIJIN WANG, ZHU FENG, HU YAN, QI QIAOHONG, LIU JUNDING, WANG YIJIN
Принадлежит:

The invention relates to a halogen-free flame retardant polyether polyurethane thermoplastic elastomer composite capable of resisting high temperature and high humidity. The invention aims to solve the technical problem of providing the halogen-free flame retardant polyether polyurethane thermoplastic elastomer which has the advantages of high flexbility and mechanical strength, good flame resistance and no halogen, has hydrolysis resistance under the high temperature and high humidity environment, meets the requirements of the RoHS2.0 directive and resists high temperature and high humidity.The elastomer composite is characterized in that the composite product is prepared by premixing and extruding granulation; and the composite comprises the following components by weight percent: 1.0-30.0% of organic phosphonate flame retardant, 0.0-10.0% of phosphate, 0.1-1.2% of the mixture of antioxidant and ultraviolet absorbent, 0.0-10.0% of viscosity regulator and the balance of polyether polyurethane ...

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Номер записи: 10
13-07-2011 дата публикации

High-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition

Номер: CN0102120875A
Автор: FENG ZHU, QIAOHONG QI, YIJIN WANG, JUNDING LIU, YAN HU, ZHU FENG, QI QIAOHONG, WANG YIJIN, LIU JUNDING, HU YAN
Принадлежит:

The invention relates to a high-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition. The invention aims to solve the technical problem of precipitation of the halogen-free flame-retardant polyester type polyurethane elastomer in a high-temperature high-moisture environment, maintain the softness and mechanical strength of the elastomer and conform to the RoHS instruction, thereby satisfying the requirements for high-performance electronic/electric appliance materials and the development characteristics of no halogen and flame retardancy. The invention is characterized in that the high-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition is prepared from the following components in percentage by weight: 5.0-40.0% of organic phosphonate flame retardant, 0.0-15.0% of nitrogen-containing compound, 1.0-15.0% of viscosity ...

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Номер записи: 11
17-06-2015 дата публикации

Strain-control type tension-shearing direct shear apparatus

Номер: CN104713788A
Автор: LUO JIANWEN, WANG ZHIJUN, LI RONGJIAN, GENG SHENGMING, LIU JUNDING, WU JUN, ZHANG HONGJIE, ZHAO SHENGJIE, ZHU QIAOCHUAN, LIU JIAWEN
Принадлежит:

The invention particularly provides a strain-control type tension-shearing direct shear apparatus. The strain-control type tension-shearing direcot shear apparatus comprises a base and a bracket, wherein the base is provided with a horizontal-force applying device, a measuring device, an upper shearing box and a lower shearing box; the bracket is provided with an axial-tension loading device; the horizontal-force applying device consists of a pushing seat, a speed changing box, a sliding frame II, a force-measuring ring bearing, a force-measuring ring part and a locking nut; the measuring device comprises a force measuring ring, a horizontal displacement meter and a vertical displacement meter; and the axial-tension loading device mainly comprises a pneumatic control adjusting device, an air-pressure chamber, a force transferring rod, a piston and a connecting seat. The strain-control type tension-shearing direct shear apparatus provided by the invention has the advantages that the modes ...

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Номер записи: 12