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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 19. Отображено 19.
12-05-2023 дата публикации

Limiting stopper for compressor, pump body assembly, compressor and air conditioner

Номер: CN116104763A
Принадлежит:

The invention provides a limiter for a compressor, a pump body assembly, the compressor and an air conditioner. The limiting stopper for the compressor comprises a straight section (81) and a bent section (82), the straight section (81) is provided with an assembly hole, the bent section (82) is in a cantilever state, a molded line of the limiting stopper for the compressor comprises a straight line section L1 and an arc line section L2, the arc line section L2 comprises a plurality of arc sections (821) which are sequentially connected, the radiuses of the arc sections (821) are different, the radiuses of the arc sections (821) are sequentially R1, R2, R3... Rn in the direction from the straight section (81) to the bent section (82), r1, R2, R3... and Rn meet the condition that R1 < R2 < R3 <... < Rn. According to the limiting stopper for the compressor, the instantaneous speed of the exhaust valve plate impacting the limiting stopper can be reduced, the high-frequency reliability of the ...

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23-06-2023 дата публикации

Valve full life cycle management method and system based on two-dimensional code

Номер: CN116308431A
Принадлежит:

The invention discloses a valve full life cycle management method and system based on a two-dimensional code, and the system comprises a valve information data center system, a valve purchase order access system generates a corresponding two-dimensional code, and can provide manufacturing information, inspection information, acceptance information, installation information, use information, maintenance information and replacement information according to the two-dimensional code; the information can be obtained by scanning the two-dimensional code, and information collection, management and application of the whole life cycle of the valve are achieved. According to the invention, a user can track and manage the full life cycle state of valve purchase, manufacturing, installation, use, repair and maintenance and valve replacement, and the user can rapidly obtain the information of each stage of the valve from the beginning of an order to the current by scanning the two-dimensional code on ...

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26-05-2023 дата публикации

Oil retaining and silencing structure of rotor assembly, compressor and air conditioner

Номер: CN116163957A
Принадлежит:

The invention provides an oil retaining and silencing structure of a rotor assembly, a compressor and an air conditioner, the oil retaining and silencing structure of the rotor assembly comprises the rotor assembly and an oil retaining seat, an oil retaining seat circulation hole is formed in the oil retaining seat, and the oil retaining seat circulation hole is communicated with a rotor circulation hole; an oil guide part is arranged on the second axial end face in a protruding mode in the direction away from the rotor assembly, a resonant cavity is formed in the oil guide part and extends in the protruding direction of the oil guide part, a resonant cavity neck channel is further formed in the oil blocking base, one end of the resonant cavity neck channel communicates with the oil blocking base circulation hole, and the other end of the resonant cavity neck channel communicates with the resonant cavity. Part of fluid in the oil baffle seat circulation hole can be guided into the resonant ...

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22-08-2023 дата публикации

Accurate statistical method for completion percentage of passive supervision task

Номер: CN116629649A
Принадлежит:

Contract completion percentage is an important economic index of service enterprises, but for passive technical service enterprises such as supervision, supervision manufacturing or third-party inspection, the contract completion percentage is not only a certain economic index in the service implementation stage. The construction period delay or the construction period advance is completely limited by the influence of project arrangement, investment fund resources, materials, processes, tool matching problems, project quality problems and the like of a main construction party or a contractor, and a service providing party cannot effectively control services through subjective efforts to complete a contract on schedule and is completely in a passive position. It is generally believed that passive technical service enterprises cannot count contract income and cost by adopting a contract completion percentage based on a workload method, only can use a process node method irrelevant to a man-hour ...

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18-08-2023 дата публикации

Preparation method and application of paper-based sensor for detecting ammonia gas

Номер: CN116609302A
Принадлежит:

The invention belongs to the technical field of nano science and fluorescence sensing, and particularly relates to a preparation method and application of a paper-based sensor for detecting ammonia gas. The method comprises the following steps: firstly, preparing Zn (PA) (BPE), and adsorbing ammonia gas by utilizing a porous structure on the surface of the Zn (PA) (BPE) so as to improve the reaction sensitivity to the ammonia gas; further embedding Zn (PA) (BPE) and CNQDs to form a Zn (PA) (at) CNQDs ratio-type fluorescent substance, and finally dissolving the Zn (PA) (at) CNQDs ratio-type fluorescent substance in ultrapure water to obtain a solution; and carrying out nitrogen blowing so as to load the fluorescent powder on the filter paper, thereby obtaining the ratio-type fluorescent paper-based sensor. According to the invention, Zn (PA) (BPE) and CNQDs are embedded to form the ratio-type fluorescent paper-based sensor, so that the CNQDs are more stable, the background anti-interference ...

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07-04-2023 дата публикации

Preparation and application of diatomic electrocatalyst for efficient electrocatalytic reduction of CO2 into CO

Номер: CN115928107A
Принадлежит:

The invention discloses preparation and application of a diatomic electrocatalyst for efficient electrocatalytic reduction of CO2 into CO, and the preparation method comprises the following steps: grinding ZIF-8 into powder, and putting the powder into a tubular furnace for high-temperature carbonization to obtain a nitrogen-doped carbon product; the method comprises the following steps: adding two metal salts, namely nickel acetate and zinc acetate, and 1, 10-o-phenanthroline into absolute ethyl alcohol, and stirring to form a complex; adding the nitrogen-doped carbon product into the complex, stirring and drying to obtain a precursor; grinding the precursor into powder, putting the powder into a quartz boat, transferring the quartz boat into a tubular furnace, carrying out high-temperature calcination in an argon atmosphere, and naturally cooling to room temperature, so as to obtain the diatomic electrocatalyst for efficiently electrocatalytically reducing CO2 into CO. According to the ...

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26-05-2023 дата публикации

Pump body assembly and compressor with same

Номер: CN116163952A
Принадлежит:

The invention provides a pump body assembly and a compressor with the pump body assembly, the pump body assembly comprises an air cylinder, the air cylinder is arranged between flange assemblies, and a working cavity is formed between the air cylinder and the flange assemblies; the crankshaft is provided with an eccentric part, the eccentric part is located in the working cavity, and the crankshaft is provided with a first oil supply channel; the roller is arranged in the working cavity, and the roller is arranged in the circumferential direction of the eccentric part; at least one second oil supply channel is formed in the cavity wall of the working cavity, and the oil inlet is communicated with the first oil supply channel. According to the crankshaft, the second oil supply channel is formed in the working cavity, and the oil outlet is formed in the cavity wall face, facing the eccentric part, of the working cavity, so that the face, opposite to the eccentric part of the crankshaft, of ...

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08-04-2015 дата публикации

Gold nanorod biotic compound and preparation method and applications thereof

Номер: CN104493160A
Принадлежит:

The invention discloses a gold nanorod biotic compound and a preparation method and applications thereof and belongs to the technical field of electrochemical analysis. A gold nanorod modified by silicon dioxide (AuNRs@SiO2) is used as a carrier and combined with a detection antibody (dAb) and ferrocenecarboxylic acid (Fc) to prepare dAb-AuNR-Fc which is used for amplifying escherichia coli in an electrochemical immunoassay dairy product. A 'sandwich' immunoassay model is established on basis of specificity interaction between the escherichia coli and escherichia coli antibody, and Fc combined with an electrode surface is measured by a differential pulse voltammetry to obtain a current signal. According to the gold nanorod biotic compound and the preparation method and the applications thereof, the electrochemical immunoassay method based on dAb-AuNR-Fc biotic compound is used for escherichia coli detection, the detection sensitivity, the specificity and the accuracy are high, and a novel ...

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08-04-2015 дата публикации

Carbon nano tube/nanogold composite membrane electrochemical immunosensor and application thereof

Номер: CN104502583A
Принадлежит:

The invention discloses a carbon nano tube/nanogold composite membrane electrochemical immunosensor and application thereof, belonging to the technical field of electrochemical analysis. The surface of a glass carbon electrode is modified by a carbon nano tube, and a multi-potential-step method is adopted for depositing nano gold on the surface of the carbon nano tube, and thus the carbon nano tube/nanogold composite membrane is obtained; under the adsorption effect between nanogold and microcystic toxin-(leucine-arginine) antibody, an antibody is fixed on the surface of an electrode, a non-specific adsorption site is closed by utilizing bovine serum albumin, and an electrochemical immunosensor used for detecting microcystic toxin is researched; an immunoassay analysis mode of a 'sandwich'-structure is constructed by utilizing specific recognition effect between the microcystic toxin and an antibody thereof; and horse radish peroxidase labelled antibody is taken as a detection beacon, and ...

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07-04-2023 дата публикации

Multi-frame fusion low-illumination image enhancement method based on Retinex theory

Номер: CN115937024A
Принадлежит:

The invention discloses a multi-frame fusion low-illumination image enhancement method based on a Retinex theory, and the method comprises the steps: inputting a low-illumination image, and converting the low-illumination image from an RGB space to an HSV space, thereby obtaining a hue component H, a brightness component V, and a saturation component S; v is used as an initial irradiation component, an irradiation component Li is generated by adopting an image brightness estimation method, and each frame of input image is divided by Li to obtain a reflection component Ri; using an S curve capable of retaining image details to optimize Li, and using a weighted average method to obtain a final irradiation component L; de-noising the Ri by using a non-local mean filter, optimizing the de-noised reflection component by using an anti-sharpening mask method, and obtaining a final reflection component R by using a weighted average method; and L and R are multiplied to obtain an enhanced brightness ...

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30-04-2014 дата публикации

Method for determining quantity of fed specimens in breathable cylinder of brinell breathable specific surface area instrument

Номер: CN103760070A
Принадлежит:

The invention discloses a method for determining the quantity of fed specimens in a breathable cylinder of a brinell breathable specific surface area instrument. The method comprises the following steps: adding specimens which ensure that after a weight is placed on a bruiser, a support ring of the bruiser is higher than the top edge of the breathable cylinder, into the brinell breathable specific surface area instrument, and compacting the specimens; measuring a height h1 from the bottom edge of the breathable cylinder to the top end of the bruiser, and according to a formula h2=h1-a-b-c-f, calculating a height h2 of the specimens, wherein a refers to the distance between the lower edge of a perforated plate in the breathable cylinder to the lower edge of the breathable cylinder, b refers to the thickness of the perforated plate, c refers to the sum of thickness of filter paper placed between the upper and lower ends of the specimens, and f refers to the height of the bruiser; calculating ...

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04-04-2023 дата публикации

Pump body assembly, rolling rotor type compressor and air conditioner

Номер: CN115898878A
Принадлежит:

The invention provides a pump body assembly, a rolling rotor type compressor and an air conditioner, the pump body assembly comprises an upper flange and a crankshaft, a crankshaft assembly hole is formed in the upper flange, the crankshaft is rotatably assembled in the crankshaft assembly hole, the crankshaft is provided with an eccentric part, and the crankshaft is provided with a central upper oil blind hole extending in the axial direction of the crankshaft; an annular flexible groove is formed in the end face of the first end, an oil storage annular groove is formed in the inner wall of an orifice, close to the second end, of the crankshaft assembly hole, an oil return groove is formed in the hole wall of the crankshaft assembly hole, and a side oil hole is formed in the hole bottom of the center oil feeding blind hole. Lubricating oil pumped in the center oiling blind hole at least partially flows back to the oil pool through the side oil holes, the oil storage ring groove and the ...

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02-05-2023 дата публикации

Exhaust assembly for compressor, pump body assembly, compressor and air conditioner

Номер: CN116044770A
Принадлежит:

The invention provides an exhaust assembly for a compressor, a pump body assembly, the compressor and an air conditioner. The exhaust assembly for the compressor comprises an exhaust valve plate and a limiting stopper, the exhaust valve plate covers a flange exhaust port, the limiting stopper is arranged on one side of the exhaust valve plate and comprises a straight section and a bent section, the straight section is provided with an assembly hole, the bent section is in a cantilever state, the maximum operation frequency of the compressor is f, the diameter of the flange exhaust port is d, and the thickness of the limiting stopper is T, the maximum lift of the bent section is H, the projection length of the bent section on the mounting plane of the straight section is L, the curvature radius of the bent section is R0, the radian angle is beta, the exhaust volume of the working cavity is V, and the parameters f, beta, H, L, R0 and V meet the following conditions: 0.8 < = f * V/[L * (H-R0 ...

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04-07-2023 дата публикации

Waste gas treatment filtering system and method

Номер: CN116371127A
Принадлежит:

The invention discloses a waste gas treatment filtering system and method.The waste gas treatment filtering system comprises a spraying mechanism and an adhesive removing mechanism, the spraying mechanism comprises a spraying tower body, an alkali liquor spraying pipe is installed at the top of an inner cavity of the spraying tower body, a plurality of alkali liquor nozzles are installed on the lower end face of the alkali liquor spraying pipe, and the alkali liquor spraying pipe communicates with an alkali liquor storage box installed outside the spraying tower body; a pump body is installed in the alkali liquor storage box, a waste gas filter box is installed on the other side of the spray tower body, the gas inlet end of the waste gas filter box is connected with a waste gas inlet pipe, the gas outlet end of the waste gas filter box is connected with a gas inlet pipeline arranged below the spray tower body through an exhaust pipe, a blowing mechanism is further installed at the bottom ...

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29-08-2023 дата публикации

Preparation method and application of quaternized polyimide film

Номер: CN116656126A
Принадлежит:

The invention discloses preparation and application of a quaternized polyimide film. The preparation method comprises the following steps: firstly, synthesizing polyimide macromolecules by adopting a monomer polymerization strategy; the preparation method comprises the following steps: firstly, dissolving a quaternized polyimide polymer into N, N-dimethylformamide, adding 2, 3-epoxypropyltrimethylammonium chloride for reaction to obtain a membrane casting solution, pouring the membrane casting solution onto a glass plate, casting to form a membrane, drying, and finally, soaking, cleaning and drying the quaternized polyimide membrane in absolute ethyl alcohol; and soaking the dried quaternized polyimide membrane in a KOH solution, washing, and drying to obtain the diaphragm in the electrocatalytic CO2 reduction device. According to the invention, polyimide is used as a hydrophobic polymer main chain of the anion exchange membrane, and a hydrophilic side chain containing a quaternary ammonium ...

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30-05-2023 дата публикации

Exhaust valve plate, pump body assembly, compressor and air conditioner

Номер: CN116181654A
Принадлежит:

The invention provides an exhaust valve plate, a pump body assembly, a compressor and an air conditioner. The exhaust valve plate comprises a fixing part, a connecting part and a head part, the connecting part is connected with the fixing part and the head part, the head part covers an exhaust port, the connecting part and the head part form a free bending section, the total length of the free bending section is L0, the width of any position between one end, close to the fixing part, of the free bending section and the center of the head part is w, the thickness is t, the head part is round, and the diameter is d0. The maximum operation frequency of the compressor is f, the exhaust volume, communicated with the exhaust port, of the compressor is V, the diameter of the exhaust port is d, and the parameters L0, w, t, d0, f, V and d meet the condition that f is larger than or equal to 120 Hz. According to the exhaust valve plate, the high-frequency reliability of the valve plate can be improved ...

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30-10-2020 дата публикации

Pump body assembly of rotor compressor, rotor compressor and air conditioner

Номер: CN0211819906U

The utility model provides a pump body assembly of a rotor compressor, the rotor compressor and an air conditioner. The pump body assembly of the rotor compressor comprises an air cylinder structure,the piston is arranged in the air cylinder structure, a mounting space is formed in the piston, and an opening of the mounting space is formed in the first end face of the piston; the balance block isarranged in the mounting space; the crankshaft is connected with the first end face of the piston. According to the technical scheme, the problem that a crankshaft is prone to deflection deformationdue to eccentric arrangement of the mass center of a pump body assembly in the prior art is effectively solved.

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01-08-2023 дата публикации

Exhaust valve plate, pump body assembly, compressor and air conditioner

Номер: CN116517839A
Принадлежит:

The invention provides an exhaust valve plate, a pump body assembly, a compressor and an air conditioner. The exhaust valve plate comprises a fixing part (71), a connecting part (72) and a head part (73), a mounting hole (74) is formed in the fixing part (71), the fixing part (71) is constructed to be used for assembling and fixing the exhaust valve plate, the connecting part (72) is connected with the fixing part (71) and the head part (73), the head part (73) is constructed to cover a flange exhaust port (11), the connecting part (72) and the head part (73) jointly form a free bending section (82), the first-order structure modal frequency of the exhaust valve plate is f1, and the first-order structure modal frequency of the exhaust valve plate is f2. The modal frequency of the second-order structure is f2, the maximum operation frequency of the compressor is f, and the parameters f1, f2 and f meet the conditions that f1 is larger than 2f, and f2 is larger than 10f. According to the exhaust ...

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07-04-2023 дата публикации

Pump body oil way structure, pump body, compressor and air conditioner

Номер: CN115929644A
Принадлежит:

The invention provides a pump body oil way structure, a pump body, a compressor and an air conditioner, the pump body oil way structure comprises an upper flange, an upper oil groove, an oil storage groove and a lower oil groove are formed in the inner wall of a shaft hole of the upper flange, the lower end of the upper oil groove can be used for sucking oil, and the upper oil groove extends upwards to the upper end to communicate with the oil storage groove; the oil storage groove extends on the inner wall of the upper flange in the horizontal direction, the upper end of the lower oil groove is communicated with the oil storage groove so that oil can be sucked in from the oil storage groove, the lower oil groove extends downwards, an oil return inclined hole is further formed in the upper flange, the oil return inclined hole extends downwards in an inclined mode, and the upper end of the oil return inclined hole is communicated with the lower end of the lower oil groove. The lower end ...

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