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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 20. Отображено 20.
25-09-2013 дата публикации

Rectification efficiency test device for rectification station in electrolysis series

Номер: CN103323689A
Автор: Liu Xueyi
Принадлежит:

The invention discloses a rectification efficiency test device for a rectification station in an electrolysis series. The rectification efficiency test device comprises a voltage and current acquisition box (1) and a rectifier unit (6). The voltage and current acquisition box (1) is connected to a main incoming and outgoing line of a potroom rectifier unit. The voltage and current acquisition box (1) is connected to an intelligent recorder (3) through a wire (2). The intelligent recorder (3) is connected to a monitoring system (5) through one wire (4). A measurement point is set at a rear connection position of an outgoing breaker (11) of the rectifier unit (6). An intelligent measuring and control device (7) is connected to the measurement point which is set at the rear connection position of the outgoing breaker (11). The intelligent measuring and control device (7) is connected to the monitoring system (5) through another wire (4). The rectification efficiency test device solves the ...

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Номер записи: 1
19-06-2013 дата публикации

Power supply circuit of smoke exhaust fan of flue gas cleaning system

Номер: CN103166541A
Автор: Liu Xueyi
Принадлежит:

The invention discloses a power supply circuit of a smoke exhaust fan of a flue gas cleaning system. A first breaker (11), a first alternating current contactor (2) and a thermal relay (3) of a first power supply return circuit are sequentially connected, and the thermal relay (3) is connected with a first smoke exhaust motor M1. The first smoke exhaust motor M1 is connected with a second power supply return circuit through a second alternating current contactor (5) and a first variable-frequency drive VFD2. A second breaker (12) of a second power supply return circuit is connected with the first variable-frequency drive (41), the first variable-frequency drive (41) is connected with a third alternating contactor (6), and the third alternating current contactor (6) is connected with a second smoke exhaust motor M2. The second alternating current contactor (5) and the third alternating current contactor (6) are mutually latched. A third breaker (13) of a third power supply return circuit ...

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Номер записи: 2
02-01-2013 дата публикации

Modeling method of transmission line support devices in DMS (Distribution Management System) system power grid model

Номер: CN102855380A
Автор: Liu Xueyi, Yuan Jie, Li Fei, Wu Wei, He Peng, Ma Dingli, Ma Mingjian, Wang Jian, Wang Yahui, Zhou Yongji, Huang Lin
Принадлежит:

The invention discloses a modeling method of transmission line support devices in a DMS (Distribution Management System) system power grid model. The method is characterized in that the devices only with the function of supporting a transmission line are transformed from joint models into universal models in the power grid model. In the prior art, when a power grid is managed by using a DMS system, all transmission line support devices (such as an electric pole) included in power objects are used as joint models having connection relation with the power grid; and due to participation in computational analysis of the DMS, the performance of the system is lowered. According to the method provided by the invention, the devices only with the function of supporting the transmission line in the power grid model are transformed from the original joint models into the universal models without electric connection function; the universal models do not participate in system operation and only serve ...

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Номер записи: 3
20-11-2013 дата публикации

Method for repairing plate type concrete retaining shoulder of ballastless track and drilling device

Номер: CN103397579A
Автор: Yang Rongshan, Ren Juanjuan, Wang Ping, Liu Xueyi, Zhao Pingrui, Guo Likang, Liu Kefei, Xu Guangxin, Cai Shiyu
Принадлежит:

The invention discloses a method for repairing a plate type concrete retaining shoulder of a ballastless track and a drilling device. The method comprises the following steps: cleaning repair areas of the retaining shoulder; drilling holes in the repair areas vertically, implanting twisted steel bars in holes and fixing the twisted steel bars; repairing the repair areas by adopting repairing materials. The drilling device adopted by the repair method comprises a base, a scale bar, a spacing ring, a brake bar and a drilling mechanism, wherein a drill head is arranged on a drilling machine; the base is fixed on the retaining shoulder; the scale bar is fixed on the base and is perpendicular to the base; a plurality of scale grooves are formed in the scale bar; one end of the spacing ring is fixedly connected with the drilling machine; the other end of the scale bar is clamped into the scale grooves; the spacing ring can moves in two adjacent scale grooves; the brake bar is arranged on the ...

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Номер записи: 4
27-03-2013 дата публикации

Freight car drum brake impulse welding bottom plate and forming process thereof

Номер: CN102996687A
Автор: Kang Zhongdi, Xie Mingzhi, Liu Xueyi
Принадлежит:

The invention belongs to the technical field of automotive brake fittings, and specifically discloses a freight car drum brake impulse welding bottom plate and a forming process thereof. The freight car drum brake impulse welding bottom plate comprises a bottom plate body, a shaft sleeve and a stiffening plate sleeved on the two ends of the bottom plate body, wherein the middle of the bottom plate body is provided with a round hole, and the surface of the middle of the bottom plate body is provided with a dust cap fixed ring which is arranged coaxially with the round hole; the bottom plate body is integrally formed through a stamping flanging and a ribbing, and the shaft sleeve is a circular pipe which penetrates through the bottom plate body and is welded with the upper and lower surfaces of the bottom plate body; and the dust cap fixed ring and the stiffening plate are both welded on the bottom plate body, and the freight car drum brake impulse welding bottom plate is finished through ...

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Номер записи: 5
12-09-2012 дата публикации

Flower-like Fe2O3/Ag composite particle and preparation method thereof

Номер: CN102664085A
Автор: Liu Yaqing, Zhou Xing, Zhao Guizhe, Liu Xueyi
Принадлежит:

The invention discloses a flower-like Fe2O3/Ag composite particle and a preparation method thereof, belonging to the technical field of electromagnetic functional materials. Flower-like Fe2O3 is used as magnetic nuclei. Silver-ammonia solution is reduced into nano silver, which is orderly born on the petals of the surface of the flower-like Fe2O3. The magnetization intensity is 0.6-0.1emu/g. The volume resistivity is 0.04310-0.00016 ohm-cm. The preparation method comprises the steps of: dissolving silver nitrate in deionized water, agitating and clarifying the solution and dripping ammonia water to enable the solution to become milky white from clear and then become clear from milky white, so as to obtain clear silver-ammonia solution; adding the flower-like magnetic Fe2O3, fully agitating, heating to 40-80 DEG C and dripping formaldehyde solution for reaction for 10-120min; and washing with deionized water and absolute ethyl alcohol and drying to obtain the finished products. By adopting ...

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Номер записи: 6
10-04-2013 дата публикации

Method for controllably preparing FeNi3 micro-nano materials in various shapes

Номер: CN103028738A
Автор: Liu Yaqing, Chen Huiyu, Zhao Guizhe, Liu Xueyi
Принадлежит:

The invention discloses a method for controllably preparing FeNi3 micro-nano materials in various shapes, which relates to magnetic alloy FeNi3 micro-nano materials. The method comprises the following steps that ferric chloride hexahydrate and nickel dichloride hexahydrate are dissolved in deionized water, so as to obtain a solution with the Fe<3+> concentration of 0.005 to 0.03 mol/L and the Ni<2+> concentration of 0.015 to 0.09 mol/L, and the mole ratio of the ferric chloride hexahydrate to the nickel dichloride hexahydrate is controlled to be 1:3; then sodium hydroxide is added to full stir; then hydrazine hydrate is dropwise added to stir; the mixture is moved to a reaction kettle to be sealed, and reaction is performed at 120 to 200 DEG C for 0.5 to 24 hours; and a magnet is used for separating products, and the products are respectively washed with deionized water and absolute ethyl alcohol and then dried. According to the method, any template or external magnetic field is not used ...

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Номер записи: 7
11-12-2013 дата публикации

Rare earth co-doped barium ferrite/polyaniline composite material

Номер: CN103435798A
Автор: Liu Yaqing, Wang Yan, Zhao Guizhe, Sun Youyi, Wang Xiaofeng, Liu Xueyi, Li Xianhua
Принадлежит:

The invention relates to the field of magnetic conductive composite materials, and specifically relates to a rare earth co-doped barium ferrite/polyaniline composite material. The preparation method of the composite material is as follows: (1) preparation of loosened rare earth co-doped barium ferrite; (2) preparation of the composite material; and the chemical formula of the rare earth co-doped barium ferrite is Ba0.7(LaxNdy)0.3Fe12O19, wherein 0<=x<=1, 0<=y<=1, and x+y=1. Compared with the prior art, the rare earth co-doped barium ferrite/polyaniline composite material of the invention has the beneficial effects that: (1) lanthanum and neodymium enter into crystal lattices of barium ferrite, and thus the crystal lattice dimension of barium ferrite is enlarged and the magnetic property of barium ferrite is improved; (2) by adjusting coping ratio of lanthanum and neodymium, the magnetic property of barium ferrite is adjustable; (3) the coping of barium ferrite helps to adjust electrical ...

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Номер записи: 8
15-05-2013 дата публикации

Controllable hydrothermal preparation method of preparing metallic copper nanometer materials

Номер: CN103100723A
Автор: Chen Huiyu, Xu Chunju, Zhou Ruihua, Zhao Guizhe, Wang Xiaofeng, Liu Xueyi, Hao Yaowu
Принадлежит:

The invention discloses a controllable hydrothermal preparation method of preparing metallic copper nanometer materials and relates to the preparation method of single substance metallic copper nanometer materials. The preparation method comprises the steps of preparing solution with Cu2+ concentration of 0.026 mol per liter by using copper chloride dihydrate as a copper source and deionized water as solvent, adding surface active agent sodium dodecyl benzene sulfonate and stirring fully, dropping hydrazine hydrate into the solution in a drop-by-drop mode, stirring the solution fully, transferring the solution to a reaction kettle, sealing the reaction kettle, placing the reaction kettle into an oven of 50-180 DEG C for reacting for 1-30 hours, collecting products in a centrifugation mode after reaction is finished, respectively washing the products with the deionized water and absolute ethyl alcohol, drying the products in a vacuum mode, or directly storing the products into the absolute ...

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Номер записи: 9
15-05-2013 дата публикации

Soybean transcription active protein GmPHD5, and coding gene and application thereof

Номер: CN103102402A
Автор: Chen Shouyi, Zhang Jinsong, Wei Wei, Zhang Yuqin, Liu Xueyi, Zhang Wanke, Ma Biao, Lin Qing
Принадлежит:

The invention discloses a soybean transcription active protein GmPHD5, and a coding gene and application thereof. The soybean PHD transcription factor is: (a) a protein composed of an amino acid sequence shown as Sequence 2 in a sequence table; or (b) a protein which is derived from the Sequence 2, is formed by the amino acid sequence shown as the Sequence 2 in the sequence table through the substitution and/or deletion and/or addition of one or some amino acid residues and is related to stress tolerance of plants. Experiments of the invention prove that the soybean PHD transcription factor GmPHD5 and the coding gene thereof can be used for the cultivation of stress-tolerant plant species, and the GmPHD5 gene can obviously improve the salt tolerance and drought tolerance of plants.

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Номер записи: 10
13-02-2013 дата публикации

Human eye sight estimation method and device

Номер: CN102930278A
Автор: Che Ming, Chang Yisong, Liu Xueyi, Li Weichao, Qin Chao, Li He
Принадлежит:

The invention discloses a human eye sight estimation method and device and relates to the field of man-machine interaction. The method comprises the following steps of: carrying out eye rough positioning on a human face region; roughly selecting a 1/2-7/8 part of a face part image as an eye part region; determining a human eye vertical coordinate position through a mixed integral projection function to obtain a human eye accurate boundary; carrying out pupil scanning on the human eye accurate boundary; determining a frame which is similar with an eyeball in size according to an experience value and carrying out window scanning on the inner part of the human eye accurate boundary; selecting a window with the smallest gray value sum as a pupil and taking the center of the window as a pupil center; utilizing a corner matching algorithm to obtain an inner eye contact coordinate inside the human eye accurate boundary; and transmitting a pupil center coordinate and an inner eye contact coordinate ...

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Номер записи: 11
12-09-2012 дата публикации

Magnetic ferric oxide micrometer flower material with multi-stage structure and preparation method thereof

Номер: CN102659188A
Автор: Zhao Guizhe, Zhou Xing, Liu Yaqing, Liu Xueyi
Принадлежит:

The invention discloses a magnetic ferric oxide micrometer flower material with a multi-stage structure and a preparation method of the magnetic ferric oxide micrometer flower material. The magnetic ferric oxide micrometer flower material with the multi-stage structure has the shape of a flower which is arranged by nano-pieces with the thickness of 85-95nm in an interlaced way assembled by spherical particles with the particle sizes from 20nm to 30nm and has the multi-stage structure, and integrates the nano-grains, the nano-pieces and the micro flower. The preparation method comprises the following steps of: preparing a solution with the concentration of 0.05-0.6mol/L based on hexahydrated ferric trichloride as an iron source and ethylene glycol as solvent, adding a surface active agent, stirring to obtain clear solution, adding urea, reacting for 30-90min by an ethylene glycol auxiliary method at the temperature of 190-197 DEG C, centrifugally separating, cleaning and drying, and calcining ...

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Номер записи: 12
11-12-2013 дата публикации

Ballastless track board lifting support

Номер: CN103434970A
Автор: Ren Juanjuan, Yang Rongshan, Wang Ping, Liu Xueyi, Zhao Pingrui, Guo Likang, Liu Heng, Zhang Sifang
Принадлежит:

The invention relates to the field of communication and transportation, in particular to a ballastless track board lifting support. The ballastless track board lifting support comprises a threaded rod, a plurality of buckles, two fixing nuts matched with the threaded rod, and four supporting rods made of channel steel; the ends of two adjacent supporting rods are rotationally connected with one buckle, and the four supporting rods are connected end to end in sequence to form a quadrilateral supporting frame; the lengths of two adjacent supporting rods in the supporting frame are the same; the threaded rod penetrates through two through holes in one group of the symmetrical buckles in the support at the same time to be connected with the through holes in a sleeved mode, and the two fixing nuts are arranged at the two ends of the threaded rod to be used for positioning the two buckles; in another group of vertexes, one vertex is fixed onto a base board through one buckle, and the other vertex ...

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Номер записи: 13
18-07-2012 дата публикации

Reactive intumescent flame retardant for polyurethane and synthesis method of reactive intumescent flame retardant

Номер: CN102585135A
Автор: Liu Yaqing, Wu Denghui, Zhao Peihua, Liu Xueyi, Wang Xiaofeng, Zhang Mei
Принадлежит:

The invention discloses a reactive intumescent flame retardant for polyurethane and a synthesis method of the reactive intumescent flame retardant, relates to a flame retardant technology, in particular to a novel intumescent flame retardant which contains an acid source, a carbon source and a gas source simultaneously and contains a hydroxyl group serving as an active group. The chemical name of the reactive intumescent flame retardant for polyurethane is 3,9-di{N,N-di(2-ethoxyl)-amino}-2,4,8,10-4-oxo-3,9-diphosphate spiro-3,9-dioxo-[5,5]-undecane. The structure of the reactive intumescent flame retardant is shown as a formula (I). The synthesis method comprises the following steps of: adding 3,9-di{N,N-di(2-ethoxyl)-amino}-2,4,8,10-4-oxo-3,9-diphosphate spiro-3,9-dioxo-[5,5]-undecane into water; dropwise adding diethanolameine and triethylamine at the temperature of 0-5 DEG C; reacting at the temperature of 50-60 DEG C for 4-6 hours; concentrating under reduced pressure; purifying; and ...

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Номер записи: 14
10-04-2013 дата публикации

Preparation method of pattern and size controllable CuInSe2 nanoparticles

Номер: CN103030118A
Автор: Chen Huiyu, Xu Chunju, Liu Yaqing, Zhao Guizhe, Liu Xueyi
Принадлежит:

The invention discloses a preparation method of pattern and size controllable CuInSe2 nanoparticles, and relates to CuInSe2 nanoparticles. The method comprises the following steps that indium trichloride and cuprous chloride are dissolved in an oleylamine solvent, heated, stirred and prepared to form an oleylamine solution of indium trichloride and cuprous chloride; elemental selenium powder is added to the oleylamine solution, stirred and heated, and dissolved; the solution obtained in Step (1) is injected into a solution obtained in Step (2), heated to 190-290 DEG C and reacted for 10-240min; after the reaction is accomplished, a product is cleaned, centrifuged and collected; and the CuInSe2 nanoparticles are obtained. The method can selectively synthesize the CuInSe2 nanoparticles with different sizes and patterns through one step, is low in cost and environment-friendly, and facilitates large-scale production; the sizes and the patterns of the product are controllable; and the repeatability ...

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Номер записи: 15
25-09-2013 дата публикации

Electrolysis tank insulation detection apparatus

Номер: CN103320815A
Автор: Liu Xueyi
Принадлежит:

The invention discloses an electrolysis tank insulation detection apparatus, which comprises a positive electrode bus (1), a negative electrode bus (2) and an electrolysis tank (11), wherein the positive electrode bus (1) is connected with a voltage isolation tank (5) through a first high-voltage fuse (3), the negative electrode bus (2) is connected with the voltage isolation tank (5) through a second high-voltage fuse (4), an input of a first voltage isolator (6) is connected to the positive electrode bus and a ground wire in the voltage isolation tank (5), an input of a second voltage isolator is connected to the negative electrode bus and the ground wire in the voltage isolation tank, an input of a third voltage isolator is connected to the positive electrode bus and the negative electrode bus in the voltage isolation tank, the three voltage isolators are connected to an analog input port of an intelligent control unit (9), and the intelligent control unit (9) is connected to a monitoring ...

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Номер записи: 16
17-10-2012 дата публикации

Bi-component polyurethane coating with low infrared emissivity and preparation method thereof

Номер: CN102732145A
Автор: Liu Yaqing, Jiu Hongfang, Li Zhenghao, Zhao Guizhe, Liu Xueyi
Принадлежит:

The invention discloses a bi-component polyurethane coating with low infrared emissivity and a preparation method thereof, relating to coatings with low infrared emissivity. The bi-component polyurethane coating with low infrared emissivity is prepared from the following raw materials by weight: 91.7 of hydroxy acrylic resin, 8.3 of terpolycyantoamino-formaldehyde resin, 5 to 15 of floatable flake aluminum powder, 13.7 to 16.7 of titanium dioxide, 75 of acrylic paint thinner, 1.55 of a levelling agent, 1.55 of an antifoaming agent and 33.3 of an HDI biuret curing agent. The bi-component polyurethane coating prepared in the invention has a good color, good flowing performance and good infrared stealth performance; usage amount of metal powder in the coating is substantially reduced; and the coating has excellent comprehensive properties and is a low-infrared-emissivity coating satisfying practical needs.

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Номер записи: 17
07-08-2013 дата публикации

Visualized detection device of wheel-rail contact relationship and detection method thereof

Номер: CN103234526A
Автор: Xiao Jieling, Liu Xueyi, Wang Ping, Xu Jingmang, Liu Tinglin, Zhao Pingrui, Zhang Yu
Принадлежит:

The invention relates to the field of track traffic, and particularly relates to a visualized detection device of a wheel-rail contact relationship and a detection method thereof. The visualized detection device of the wheel-rail contact relationship comprises a speed measuring unit, a trigger unit, two shooting units, a light source, a processing unit and a marker list, wherein the light source comprises two area light sources; the speed measuring unit, the area light sources, the trigger unit and the shooting units are orderly distributed along the advancing direction of a train; the two area light sources are arranged and respectively located at two sides of a detected steel rail; the two shooting units are arranged and respectively located at the two sides of the detected steel rail; the shooting unit arranged at one side of the tested steel rail is opposite to the area light source at the other side of the detected steel rail; and the marker list comprises a plurality of markers which ...

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Номер записи: 18
18-09-2013 дата публикации

Groove cutting machine, groove cutting machine for repairing sleeper, and railroad sleeper repairing method

Номер: CN103306171A
Автор: Ren Juanjuan, Zhao Pingrui, Guo Likang, Liu Xueyi, Yang Rongshan, Wang Ping, Cai Shiyu, Liu Kefei
Принадлежит:

The invention relates to the field of rail transit, in particular to a groove cutting machine, a groove cutting machine for repairing a sleeper, and a railroad sleeper repairing method. The groove cutting machine comprises a limiting mechanism and a cutting mechanism, wherein the limiting mechanism comprises a limiting groove, a limiting insertion plate and a limiting stopper, the limiting insertion plate is inserted into the limiting groove, and is connected with the limiting stopper through an adjustable connecting piece, the thickness of the limiting insertion plate is the same as the width of the limiting groove, the limiting stopper is used for limiting the inserting depth of the limiting insertion plate in the limiting groove, the cutting mechanism comprises a cutting gear and a bracket, the cutting gear is mounted on the bracket through a rotatable connecting pipe, and the limiting insertion plate is fixedly connected with the bracket. The limiting insertion plate is inserted into ...

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Номер записи: 19
18-12-2013 дата публикации

Steel rail fastener longitudinal resistance testing device and method

Номер: CN103452019A
Автор: Yang Rongshan, Ren Juanjuan, Wang Ping, Liu Xueyi, Zhao Pingrui, Guo Likang, Cai Shiyu, Lin Hongsong
Принадлежит:

The invention relates to the field of rail construction, in particular to a steel rail fastener longitudinal resistance testing device and method. The device comprise a horizontal force applying device, a vertical force applying device, a displacement measuring device and a fixing device. The horizontal force applying device is used for applying a horizontal pushing force to one end of a steel rail. The vertical force applying device is used for applying vertical pressure to the steel rail. The displacement measuring device is used for measuring horizontal displacement, generated by the horizontal pushing force and the vertical pressure, of the steel rail. By the device high in accuracy, actual steel rail fastener longitudinal resistance of the steel rail under a load state (such as the load of a train) can be simulated and reflected.

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Номер записи: 20