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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 22. Отображено 22.
09-09-2015 дата публикации

Reciprocating type single tube suction dredge

Номер: CN0204619449U
Принадлежит:

The utility model provides a reciprocating type single tube suction dredge, sets up in fan -shaped clarifying basin, is equipped with settling zone and mud groove in the fan -shaped clarifying basin, including center support, one end articulate spiral arm on center support, disposed on spiral arm other end below the road wheel, locate suction dredge on the settling zone bottom surface, hang disposed on spiral arm below inhale the mud pipe, wherein, the center support disposed on on the centre of a circle position of fan -shaped clarifying basin, the length of spiral arm is greater than the pond inside radius of fan -shaped clarifying basin, the one end of inhaling the mud pipe is access to with suction dredge intercommunication, the other end of inhaling the mud pipe a siphoning installation is provided on the mud pipe should be inhaled to the mud inslot. The suction dredge uses with fan -shaped clarifying basin is supporting, and simple structure easily realizes.

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15-08-2023 дата публикации

Unmanned distribution vehicle and working method thereof

Номер: CN116587818A
Принадлежит:

The invention relates to an unmanned distribution vehicle and a working method thereof. The unmanned distribution vehicle comprises a chassis device, a compartment body and a storage cabinet located in the compartment body, and a window is formed in the front face of the compartment body; the storage cabinet comprises a cabinet body, a retractable door is arranged on the front face of the cabinet body, the retractable door is composed of an upper side moving curtain door, a lower side moving curtain door, a left side moving curtain door and a right side moving curtain door which move independently, goods taking windows adjustable in position and size are formed among the four side moving curtain doors, and the side moving curtain doors rotate to the periphery of the cabinet body when moving outwards. The positions and the sizes of the goods taking windows are adjusted through movement of the four side-moving curtain doors, the goods taking windows corresponding to any storage grid in position ...

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27-05-2015 дата публикации

Inner flame type energy-gathered vertical pipe combustion system

Номер: CN104654298A
Принадлежит:

The invention discloses an inner flame type energy-gathered vertical pipe combustion system. The system comprises a stove base, and a big fire combustor and a soft fire combustor both of which are arranged above the stove base; the big fire combustor and the soft fire combustor are arranged in a thermal insulation ring; the thermal insulation ring is arranged on a stove face plate; a boiler holder is arranged on the upper part of the thermal insulation ring; a water receiving plate is arranged on the outer circumference side of the stove base; the upper edge of the water receiving plate is connected with the thermal insulation ring, and the lower edge of the water receiving plate is connected with the stove base; ejection pipes of both the big fire combustor and the soft fire combustor are of Venturi ejection structures. By utilizing the additionally arranged thermal insulation ring, the combustion system has three functions of gas feed, thermal insulation and boiler holder supporting, ...

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27-01-2016 дата публикации

A transition device for butt joint of wide screen area

Номер: CN0205001444U
Принадлежит:

The utility model discloses a transition device for butt joint of wide screen area, cross the cab apron including support piece and at least two sections, each section is crossed the cab apron and is met into whole section and set up butt joint department at two guipures through support piece, support piece's both ends respectively with the guipure curb plate fastening connection of both sides. This transition device has simple structure, simple to operate, can avoid the cab apron to be out of shape, can effectively to reduce the advantage of transfer chain blind spot area.

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29-08-2023 дата публикации

Defrosting control module and defrosting control method

Номер: CN116659166A
Автор: CHEN GUANFENG, WANG XIN
Принадлежит:

The invention discloses a defrosting control module and a defrosting control method. The defrosting control module comprises a detection module and a controller. The detection module is arranged in an air supply duct of the refrigerator. The controller comprises a storage unit and a comparison unit. And the storage unit is used for storing the time ta required for reducing the standard heat conduction sample piece from the preset temperature T1 to the preset temperature T2 at different preset environment temperatures a under the preset fan rotating speed. And the comparison unit is used for calculating the actual time t * required for reducing the current standard heat conduction sample piece from the preset temperature T1 to the preset temperature T2 under the preset fan rotating speed. Time ta corresponding to the current environment temperature is determined, and the ratio of (t *-ta)/ta is calculated. And whether the ratio is larger than a preset threshold value or not is judged, and ...

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09-06-2010 дата публикации

Inner flame energy-concentrating riser pipe type gas burner

Номер: CN0101725987A
Принадлежит:

The invention discloses an inner flame energy-concentrating riser pipe type gas burner, which comprises a big fire burner, a small fire burner, a mixing tube of the big fire burner, a positioning tube of the small fire burner, and a water collector. An inner ring of an annular shell of the big fire burner is an inverted frustum which forms an angle between 20 and 80 DEG with a horizontal plane, and 1 to 5 fire exhaust holes are formed on the inner ring. One end of the mixing tube of the big fire burner is connected with the annular shell and communicated with an inner cavity of the annular shell, while the other end is communicated with a big fire nozzle which is arranged on the lower part of the water collector. The small fire burner comprises a frustum cap shell and an inner cavity of the frustum cap shell, wherein 1 to 5 fire exhaust holes are formed on external side face of the frustum cap shell, and the inner cavity of the frustum cap shell is communicated with a small fire nozzle ...

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04-07-2023 дата публикации

Powder disc finish turning parameter optimization method based on numerical model and combination test

Номер: CN116384056A
Принадлежит:

The invention provides a powder disc finish turning parameter optimization method based on a numerical model and a combination test. The powder disc finish turning parameter optimization method comprises the steps that firstly, finish turning parameters are screened; 2, establishing a surface residual stress simulation model and a surface stress concentration coefficient simulation model; 3, acquiring surface residual stress simulation model parameters and surface stress concentration coefficient simulation model parameters; 4, establishing a surface state life model considering the surface residual stress sigma RS and the surface stress concentration coefficient Kt based on the Walk life model, and estimating the low-cycle fatigue life of the powder disc according to the surface state life model; and 5, according to the surface state life model, optimizing through a dichotomy to obtain an optimal feed amount parameter y. The method is high in applicability, the requirement for finish turning ...

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05-06-2020 дата публикации

Gas alarm with globally universal power-off socket

Номер: CN0210691556U

The utility model discloses a gas alarm with a globally universal power-off socket. The device comprises a front shell and a rear shell which are fixed together, the circuit board is arranged betweenthe front shell and the rear shell; a vent hole is formed in the front shell; the front shell is provided with a universal jack which can be matched with various plugs to supply power to air source equipment; the rear shell is connected with a convertible plug which is inserted into an input power socket to achieve power supply of the gas alarm. The circuit board comprises a single-chip microcomputer circuit, an acquisition circuit connected with the single-chip microcomputer circuit, a display circuit, an alarm circuit, an exhaust fan control interface, a gas stop valve control interface anda power switch. According to the utility model, a multi-national standard jack free selection mode is adopted, while power is supplied to an alarm product, the gas concentration is detected, when an alarm ...

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11-07-2023 дата публикации

Rigidity equivalent model construction method of porous laminated structural member

Номер: CN116415348A
Принадлежит:

The invention provides a stiffness equivalent model construction method of a porous laminated structural member. The method comprises the following steps: S1, acquiring unit cell feature size parameters of pores in a laminate; s2, constructing a unit cell entity model of the laminate; s3, constructing a unit cell entity finite element analysis model of the laminate; s4, pre-processing the unit cell entity finite element analysis model; s5, calculating the rigidity equivalent modulus of the laminate at different temperatures; s6, repeating the steps S1 to S5, and calculating rigidity equivalent moduli of all laminates in the porous laminated structural member at different temperatures in all directions; and S7, carrying out integrated boundary treatment on the rigidity equivalent modulus calculated in the step S6, and constructing a rigidity equivalent model of the porous laminated structural member. According to the method, the porous laminated structure component can be simplified into ...

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18-11-2015 дата публикации

A pass in and out skip automatically for on freeze -drying line

Номер: CN0204776307U
Принадлежит:

The utility model provides a pass in and out skip automatically for on freeze -drying line, including base subassembly and rotation connect in butt joint platform on the base subassembly, be equipped with the supporting component that is used for supporting the butt joint platform between base subassembly and the butt joint platform, the supporting component includes ball, ball cage and two annular support rail, two annular support rail mutual dispositions in on base subassembly and the butt joint platform, two annular support rail's the centre of a circle is located the center of rotation department of butt joint platform, the circumferencial direction interval arrangement is followed between two annular support rail to the ball to through locating the ball cage location between the two annular support rail. The utility model has the advantages of preventing to dock the platform and rocking, a bottle risk is hung to the bottle, the platform movement precision is docked in the assurance ...

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02-06-2023 дата публикации

Return air duct structure, refrigerator and pre-dehumidification control method

Номер: CN116202280A
Принадлежит:

The invention provides an air return duct structure, a refrigerator and a pre-dehumidification control method. The air return duct structure comprises an air return pipeline, an evaporator and a water guide plate. The air return pipeline receives air flowing out of a refrigerating chamber and a temperature changing chamber of the refrigerator through the air inlet connector, and air flowing through the interior of a pipe body of the air return pipeline flows out to a freezing chamber through the air outlet connector. The evaporator is arranged on the outer wall of the air return pipeline in a winding mode so that the temperature in the air return pipeline can be reduced through refrigeration of a refrigerant in the evaporator, water vapor in air in the pipeline can be condensed into water, the water is gathered to the water guide plate and then flows to the water outlet through the water guide plate to be discharged, and the probability of water vapor frosting is reduced. The water guide ...

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25-11-2015 дата публикации

Ghost cancelling circuit and LED scanning screen of LED scanning screen

Номер: CN0204808832U
Принадлежит:

The utility model relates to a LED the ghost cancelling circuit of scanning screen, its circuit includes: messenger's ability input module's output is connected with drive control module's input, and drive control module's first output is connected with the input of the module of discharging, and drive module's second output is connected the output with forming circuit with the output of the module of discharging, and the output and the LED scanning screen of circuit are connected, and drive control module still is connected with external power source, the utility model discloses still relate to a LED scanning screen, scanning is shielded and is included several ghost cancelling circuit, is gone the drive control bus, is listed as drive control bus, LED array. Adopt the ghost cancelling circuit and the LED scanning screen of the LED scanning screen of this kind of structure, can eliminate the ghost phenomenon, and can not produce " caterpillar " phenomenon, simple structure, the low power ...

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09-06-2023 дата публикации

High voltage level shift module and gate drive circuit

Номер: CN116248093A
Принадлежит:

The invention relates to a high-voltage level shifting module which comprises a junction field effect transistor, a third PNP transistor, a fourth NPN transistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor and a second PNP transistor. The invention also relates to a gate drive circuit comprising the high-voltage level shift module. By adopting the high-voltage level shift module and the corresponding gate drive circuit, the characteristics and advantages of a bipolar preparation process device are fully utilized, the function realization of the circuit is simpler, and particularly, the structure realization of the high-voltage level shift part is more compact. The high-voltage level shifting function can be achieved without a complex narrow pulse time sequence conversion process, the number of devices needed by the whole circuit is remarkably reduced, the reliability, impact resistance and interference resistance of the ...

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13-06-2023 дата публикации

Unthreaded hole self-adaptive sealing device for combustion chamber casing pressure test

Номер: CN116255457A
Принадлежит:

The invention provides an unthreaded hole self-adaptive sealing device for a combustion chamber casing pressure test, and the device comprises a conical plug which is installed on a casing unthreaded hole through a casing inner cavity, and the conical plug is sleeved with a sealing gasket which is in contact with the inner wall of a casing; and the fixing piece is located outside the casing, and the fixing piece is used for fixing the conical plug on the casing. The unthreaded hole self-adaptive sealing device can seal and plug the unthreaded hole without reinforcing structures such as a boss and a mounting seat on the hole edge of the combustion chamber casing, solves the problem of sealing failure caused by deformation of the unthreaded hole of the casing in a pressure test, is simple in operation method and easy to implement, can greatly reduce the operation difficulty of testers, and improves the test efficiency. And the test efficiency is improved.

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06-06-2023 дата публикации

CMC blade tenon based on metal edge covering

Номер: CN116220834A
Принадлежит:

The invention relates to the technical field of turbine blades, and discloses a CMC blade tenon based on a metal covered edge, the CMC blade tenon comprises a metal layer capable of being arranged outside the CMC blade tenon in a sleeving mode, and the metal layer comprises a first contact layer attached to the working face of the CMC blade tenon and a second contact layer attached to the non-working face of the CMC blade tenon; a first pin hole is formed in the non-working face, and a second pin hole matched with the first pin hole is formed in the second contact layer. According to the invention, the metal layer is coated outside the CMC blade tenon, and the non-working surface of the CMC blade tenon is inserted into the first pin hole and the second pin hole through the pins to realize the connection and fixation of the metal layer and the CMC blade tenon, so that the micro slippage between the CMC blade tenon and the metal layer can be effectively reduced; therefore, the problem of ...

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11-06-2014 дата публикации

Construction method of long-service-life pass-through induced drainage pavement

Номер: CN103850164A
Принадлежит:

The invention discloses a construction method of a long-service-life pass-through induced drainage pavement. The construction method comprises the following steps: 1, preparing filtering materials of the pass-through water-induced pavement, including coarse aggregate, fine aggregate and modified bituminous mixture according to the weight ratio of 58.5 to 35.85 to 5.65, wherein the modified bituminous mixture comprises slaked lime, red mud and conjugate fiber according to the weight ratio of 58.5 to 35.85 to 5.65, and the conjugate fiber comprises wood fiber and basalt fiber according to the weight ratio of 1 to 2; 2, processing a substrate of the construction pavement; 3, arranging an adhesive layer or sealing layer which has the thickness of 0.1-0.2mm and the porosity of 30%; 4, arranging a substrate filtering material layer which is 0.05-0.15mm thick between a soil layer and a gravel layer of the substrate; 5, mechanically paving; 6, treating joints; and 7, maintaining the pavement. The ...

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02-04-2014 дата публикации

Manufacture method for realizing bipolar IC (integrated circuit) structure of Schottky diode and bipolar IC structure

Номер: CN103700590A
Принадлежит:

The invention relates to a manufacture method for realizing a bipolar IC (integrated circuit) structure of a Schottky diode and the bipolar IC structure, and belongs to the technical field of semiconductors. The method comprises the steps of forming an N well, a base region and a P-layer of an epitaxial layer through a directrix isoplane technology, forming a Schottky contact hole through primary etching, and finally evaporating aluminum, so as to form a silicon compound Schottky barrier layer in the Schottky contact hole. The method ensures that the technology does not require additional Schottky contact photoetching, and noble metal, such as titanium, platinum, palladium and the like, simultaneously keeps the stability and the repeatability of a Schottky barrier formed by the noble metal, such as titanium, platinum, palladium and the like, is compatible with the universal bipolar IC production technology, effectively simplifies the technical process, and reduces the production cost, and ...

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25-08-2023 дата публикации

Hovering structure and refrigerator

Номер: CN116641619A
Автор: CHEN GUANFENG, WU GENHUI
Принадлежит:

The invention provides a hovering structure and a refrigerator. The hovering structure comprises a hinge assembly and a connecting part pivoted to the hinge assembly. The hinge assembly comprises a hinge shaft, a hinge shaft sleeve, a roller and a sliding ring, the sliding ring is arranged on the hinge shaft sleeve in a sleeving mode and fixedly connected with the hinge shaft sleeve, the hinge shaft sleeve is arranged on the hinge shaft in a sleeving mode and rotationally connected with the hinge shaft, a limiting notch is formed in the hinge shaft sleeve, and the roller is rotationally arranged in the limiting notch; the outer surface of the roller abuts against the surface of the limiting notch and the inner surface of the sliding ring. A refrigerator body and a door body of the refrigerator are pivotally connected through a hovering structure, when the door body opens the door body around a hinge shaft, force consumption during door opening is reduced by forming a rolling motion mode ...

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30-12-2009 дата публикации

Perforated plastic-aluminum composite pressure pipe

Номер: CN0101614305A
Принадлежит:

The invention discloses a perforated plastic-aluminum composite pressure pipe, which comprises an outer layer, an outer adhesive layer, an aluminum pipe layer, an inner adhesive layer and an inner layer, wherein small ventilation holes are distributed on the aluminum pipe layer, and the aluminum pipe layer is formed by welding aluminum strips through butt joint or lap joint. The perforated plastic-aluminum composite pressure pipe has the advantages of reasonable structure, effective prevention of foaming, scaling, blockage and leakage of a pipeline, long service life, safety, reliability, energy conservation, consumption reduction, significant economic and social benefits and the like.

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26-08-2015 дата публикации

Foldable turnover mesh belt and feeding and discharging system provided with turnover mesh belt

Номер: CN104859999A
Принадлежит:

The invention discloses a foldable turnover mesh belt and a feeding and discharging system provided with the turnover mesh belt. The foldable turnover mesh belt comprises a conveying belt, a first rotating shaft and a turnover frame capable of rotating around the first rotating shaft; the foldable turnover mesh belt further includes a folding frame and a folding drive device; the folding frame is connected with the turnover frame and rotates relative to the turnover frame; the conveying belt is wound on the turnover frame and the folding frame; the turnover of the turnover frame drives the folding drive device which synchronously drives the folding frame to rotate relatively to the turnover frame. The foldable turnover mesh belt has the advantages that space is saved, low pollution is realized, and the factory building height limitation for the turnover mesh belt is avoided; the feeding and discharging system includes the foldable turnover mesh belt, and has the same advantages that space ...

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23-06-2023 дата публикации

Engine blade multi-order dynamic stress measurement design method based on strain gauges

Номер: CN116305542A
Принадлежит:

The invention discloses an engine blade multi-order dynamic stress measurement design method based on a strain gauge. The method comprises the following steps: S1, determining a blade vibration range; s2, analyzing the strength of the blade and analyzing the vibration of the blade according to the vibration range of the blade; s3, determining the vibration monitoring order of the blade and the patch position and patch direction of the strain gauge; s4, calculating a limit value of the strain gauge according to a vibration principle and based on the maximum vibration risk factor; s5, calculating a multi-order conversion coefficient and a multi-order limit value of the strain gauge; and S6, determining vibration orders which can be monitored by the strain gauges at the same time through sensitivity analysis. During the test, the number of strain gauges is reduced.

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11-07-2012 дата публикации

Inner flame energy-concentrating riser pipe type gas burner

Номер: CN0101725987B
Принадлежит:

The invention discloses an inner flame energy-concentrating riser pipe type gas burner, which comprises a big fire burner, a small fire burner, a mixing tube of the big fire burner, a positioning tube of the small fire burner, and a water collector. An inner ring of an annular shell of the big fire burner is an inverted frustum which forms an angle between 20 and 80 DEG with a horizontal plane, and 1 to 5 fire exhaust holes are formed on the inner ring. One end of the mixing tube of the big fire burner is connected with the annular shell and communicated with an inner cavity of the annular shell, while the other end is communicated with a big fire nozzle which is arranged on the lower part of the water collector. The small fire burner comprises a frustum cap shell and an inner cavity of the frustum cap shell, wherein 1 to 5 fire exhaust holes are formed on external side face of the frustum cap shell, and the inner cavity of the frustum cap shell is communicated with a small fire nozzle ...

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