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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 17. Отображено 17.
13-05-2009 дата публикации

Growth method of group III nitrides

Номер: CN0101428752A
Принадлежит:

The invention relates to a method for growing group III nitride materials, which is characterized in that the method comprises the following steps: a cantilever beam is selected and provided with a fixed end and a free end; a buffer layer is grown on the upper surface of the cantilever beam; and a group III nitride layer is grown on the surface of the buffer layer. The invention has the advantages that the cantilever beam is adopted as a substrate for growing group III nitrides; and because only one end of the cantilever beam is fixed, the stress in the group III nitride layer can be reduced, and the crystal quality is improved.

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18-08-2023 дата публикации

Flow choking type eccentric semi-ball valve for slurry

Номер: CN116608287A
Принадлежит:

The invention relates to the technical field of valves, in particular to a flow choking type eccentric semi-ball valve for slurry. Comprising a valve body, a first pipeline, a second pipeline, a rotating rod, a rotating valve element, a sliding plate, a reset spring and the like, the first pipeline is communicated with the second pipeline through the valve body, the rotating rod is rotationally connected with the valve body, the rotating valve element is connected with the rotating rod, the rotating valve element is located in the valve body, and the sliding plate is slidably connected with the first pipeline and can slide up and down. The rotary valve element makes contact with the sliding plate when rotationally closed, and the reset spring is connected with the sliding plate and the first pipeline. The rotary valve element can be controlled to rotate to be opened or closed by rotating the hand wheel forwards and backwards, so that on-off of slurry can be controlled, meanwhile, when the ...

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23-01-2008 дата публикации

Multi-layer insulator silicon material used for MEMS and method thereof

Номер: CN0101110428A
Принадлежит:

The present invention relates to a multilayer SOI material and production method belonging to the field of MEMS, which is characterized in that a multilayer complex substrate made from SOI material (Silicon-On-Insulator) or similar SOI material is adopted. In addition, silicon-silicon bonding or melting bonding, bonding grinding and polishing or intelligent peeling are utilized to obtain the multilayer SOI material provided with a crystalline silicon layer and an embedded insulating layer staggered towards each other. The material conveniently realizes specific production of complex MEMS element and accurately controls some characteristic sizes of elements, thus consummating application of SOI to MEMS. As for micromechanical processing microelectronic elements isolated with grooves, the material is an effective solution to realize single chip integration.

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04-08-2023 дата публикации

Microscope automatic positioning and focus locking method, device and equipment and storage medium

Номер: CN116540396A
Принадлежит:

The invention discloses a microscope automatic positioning and focus locking method, device and equipment and a storage medium. The method comprises the following steps: acquiring a plurality of images of a reflection light spot on a glass slide, taking a pixel point position corresponding to a maximum pixel value as a centroid position according to one-dimensional image data corresponding to each image, and then generating a first equation according to a relationship between the centroid position and the pixel value; a second equation is generated according to the relation between the coordinate of the Z axis of the microscope and the mass center position; according to the first equation, the optimal centroid position when the image value is maximum is determined, then according to the second equation, the optimal microscope Z-axis coordinate corresponding to the optimal centroid position is determined, and the Z-axis controller controls the objective lens to move to the designated position ...

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11-05-2011 дата публикации

Paralleling microprocessor and its realization method

Номер: CN0101334766B
Принадлежит:

The invention relates to a parallel microprocessor and a corresponding realization method which are based on FPGA development. The parallel microprocessor comprises a CPU which is a 32-bit fixed-point CPU formed by a fetch decoding unit, a process management unit and an integer instruction execution unit; a communication module formed by a plurality of units of LINK channels and In/Out controllers; an arbitration controller used for arbitrating internal and external address buses and a data bus of the CPU; an external memory interface used for providing reading/writing time-sequence logic foran external memory; an interruption/time-sequence controller used for providing timing and interruption for the CPU; an internal memory used for providing the instructions of the CPU and quickly accessing data. The CPU is also provided with a floating point unit (FPU) combining the 32-bit fixed-point CPU to form a 64-bit floating point CPU. The 32-bit fixed-point parallel microprocessor and the 64-bit ...

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22-06-2011 дата публикации

FPGA-based nuclear magnetic resonance data communication implementation device and method

Номер: CN0102104427A
Принадлежит:

The invention relates to a field programmable gate array (FPGA)-based nuclear magnetic resonance data communication implementation device and an FPGA-based nuclear magnetic resonance data communication implementation method. An optical fiber Ethernet scanning control board is interconnected with an optical fiber communication card through a multimode optical fiber; the optical fiber Ethernet scanning control board comprises a back panel interface, an I-type communication protocol converter and a first optical fiber transceiving module, wherein the I-type communication protocol converter is in communication connection with a spectrometer system through the back panel interface and performs bidirectional transmission with the optical fiber communication card through the first optical fiber transceiving module; and the optical fiber communication card comprises a peripheral component interconnect express (PCIe) interface, a second optical fiber transceiving module and an II-type communication ...

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26-10-2005 дата публикации

Electrical parameter characterization method of silicon on insulation body

Номер: CN0001687800A
Принадлежит:

This invention offers a kind of electrical parameter characterization method for silicon in semi conduction. It belongs to one of characterization method in micro-electronic and solid-state electronics, silicon based integrated phoelectron material. The attribute of the invention is it base on four-feeler testing platform, added with conductive sample platform which made up of pseudo MOS system. It can characterize charging density in buried layer of silicon material and interface state density etc. It similar to the analyze method of MOSFET. It has merits such as easy taking, low cost and quick test. It can serve as an online characterize method for massive OSI material production.

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01-05-2018 дата публикации

Changes in temperature cushion ventilation structure

Номер: CN0207291767U
Автор: SUN JIAYIN
Принадлежит: SUN JIAYIN

The utility model provides a changes in temperature cushion ventilation structure, including the handle, the box is connected to the one -level, the one -level mounted cushion, and the box is connected to one -level ventilation pipe, second grade, the connection gasket, the second grade ventilation pipe, the one -level connexon is detained, the fixed band device, the intake pipe, manual control valve, the connecting pipe, communicating pipe, the second grade connexon is detained, massages excellent device and second grade mounted cushion, the handle paste at the upper portion of connection gasket intermediate position, the one -level connect the box and paste the upper portion left and right sides at the connection gasket respectively. The utility model provides the setting of hand is favorable to the convenient the device that carries of operating personnel, the setting of fixed band device is favorable to fixed more firmly, avoids operating personnel to remove because of the seatpadwhen ...

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07-07-2023 дата публикации

Intelligent recommendation system and method based on product concept design characteristic combination

Номер: CN116401468A
Принадлежит:

The invention discloses an intelligent recommendation system and method based on product conceptual design characteristic combination. The system comprises an external commodity information processing module, an enterprise internal product information module, a data fusion treatment module, a conceptual design generation module and a product characteristic recommendation module. The external commodity information processing module acquires information of related commodities on the market based on external data; the enterprise internal product information acquisition module is used for acquiring functions, characteristics, technical specifications and parameter information of internal products; the data fusion management module is used for performing unified standardized coding on the function, characteristic, technical specification and parameter information of the internal product and the information of the external related commodity to form structured data; a concept design generation ...

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12-05-2023 дата публикации

Distributed electric hydrogen energy storage participation demand side response discharge bidding strategy optimization method

Номер: CN116109057A
Принадлежит:

The embodiment of the invention provides a distributed electric hydrogen energy storage participation demand side response discharge bidding strategy optimization method. The method comprises the following steps: acquiring data of the electro-hydrogen energy storage facility participating in response to discharge bidding at a demand side, and performing normalization processing; according to the expected profit of the electric hydrogen energy storage facility participating in the demand side response bidding at the next moment in the fixed time range, calculating an influence factor of the electric hydrogen energy storage facility discharge bidding strategy quotation; calculating an influence factor of the demand side electric energy demand on the electric hydrogen energy storage facility discharge bidding strategy quotation; and calculating a quoted price prediction value and an electric quantity prediction value of the electric hydrogen energy storage facility participating in demand ...

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31-12-2008 дата публикации

Paralleling microprocessor and its realization method

Номер: CN0101334766A
Принадлежит:

The invention relates to a parallel microprocessor and a corresponding realization method which are based on FPGA development. The parallel microprocessor comprises a CPU which is a 32-bit fixed-point CPU formed by a fetch decoding unit, a process management unit and an integer instruction execution unit; a communication module formed by a plurality of units of LINK channels and In/Out controllers; an arbitration controller used for arbitrating internal and external address buses and a data bus of the CPU; an external memory interface used for providing reading/writing time-sequence logic for an external memory; an interruption/time-sequence controller used for providing timing and interruption for the CPU; an internal memory used for providing the instructions of the CPU and quickly accessing data. The CPU is also provided with a floating point unit (FPU) combining the 32-bit fixed-point CPU to form a 64-bit floating point CPU. The 32-bit fixed-point parallel microprocessor and the 64- ...

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31-12-2008 дата публикации

Magnetic nuclear resonance radio frequency receiving signal digital downward conversion implementing device and method

Номер: CN0101334456A
Принадлежит:

The invention relates to a device and a method for realizing the nuclear magnetic resonance radio frequency received signal digital down conversion, which are realized on the basis of the FPGA technology, the device comprises a DC-offset suppressor, a command decoder, a numerical controlled oscillator, a real part channel, an imaginary part channel and an output control interface, wherein, the DC-offset suppressor suppresses the DC-offset which is generated during the digital signal processing process; the command decoder decodes control words of the numerical controlled oscillator, the related control words of a CIC comb filter and the control words of a DDC output in a real-time manner; the numerical controlled oscillator decodes the control words of the numerical controlled oscillator in the real-time manner; the real part channel and the imaginary part channel complete the orthogonal detection operation of a digital nuclear magnetic resonance free induction decay signal from the radio ...

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12-11-2008 дата публикации

Method for preparing LED

Номер: CN0101304063A
Принадлежит:

The invention relates to a manufacturing method of a light emitting diode (LED), which comprises the following steps: an extending substrate with hexagonal lattices is adopted; an emitting layer is grown on the surface of the extending substrate; conductive supporting substrates are adopted; the conductive supporting substrates are bonded with the emitting layer on the surface of the extending substrate; the extending substrate is then removed. The manufacturing method has the advantages that: the extending substrate with hexagonal lattices is adopted to grow the emitting layer, thus ensuring the crystal quality of the emitting layer; by adopting the method of bonding conductive supporting substrates and then peeling off the extending substrate, the technical problems that the extending substrate is not conductive and vertical structures cannot be made can be solved.

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25-07-2012 дата публикации

Magnetic nuclear resonance radio frequency receiving signal digital downward conversion implementing device and method

Номер: CN0101334456B
Принадлежит:

The invention relates to a device and a method for realizing the nuclear magnetic resonance radio frequency received signal digital down conversion, which are realized on the basis of the FPGA technology, the device comprises a DC-offset suppressor, a command decoder, a numerical controlled oscillator, a real part channel, an imaginary part channel and an output control interface, wherein, the DC-offset suppressor suppresses the DC-offset which is generated during the digital signal processing process; the command decoder decodes control words of the numerical controlled oscillator, the related control words of a CIC comb filter and the control words of a DDC output in a real-time manner; the numerical controlled oscillator decodes the control words of the numerical controlled oscillator in the real-time manner; the real part channel and the imaginary part channel complete the orthogonal detection operation of a digital nuclear magnetic resonance free induction decay signal from the radio ...

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22-06-2011 дата публикации

Device and method for realizing broadband digital magnetic resonance radio frequency receiving

Номер: CN0102103195A
Принадлежит:

The invention relates to a device and method for realizing broadband digital magnetic resonance radio frequency receiving. The device comprises a radio frequency receiving signal conditioner, a clock phase jitter suppressor, a high-speed analog to digital converter and a digital down converter, wherein the radio frequency receiving signal conditioner conducts front-end voltage amplification and anti-aliasing filtering for a magnetic resonance signal received by an external device; the clock phase jitter suppressor is used for suppressing phase jitter of a system clock and providing a high-stability clock source in a picosecond or femtosecond order of magnitude for the high-speed analog to digital converter and the digital down converter; the high-speed analog to digital converter is used for realizing digitalized conversion of the radio frequency receiving signal; and the digital down converter is used for conducting orthogonal coherent detection, filtering and frequency down conversion ...

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04-08-2023 дата публикации

Excitation module capable of locking imaging focal plane, microscope and microscopic imaging system

Номер: CN116540395A
Принадлежит:

The invention relates to the technical field of microscopic imaging, and discloses an excitation module capable of locking an imaging focal plane, a microscope and a microscopic imaging system.The excitation module comprises an excitation light module and a focus locking module, and the excitation light module irradiates a light inlet through hole in the rear end of the microscope; the focus locking module comprises a detection light source, a semi-transparent and semi-reflective mirror and a first dichroscope, and the first dichroscope is a short-pass and long-reflective dichroscope; the detection light source is transmitted to the first dichroscope through the semi-transparent and semi-reflecting mirror and is integrated in a light incident through hole at the rear end of the microscope; the focus locking module further comprises a reflector, a displacement amplification system and a detector. A light beam reflected by the detection light source is reflected to the displacement amplification ...

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16-01-2008 дата публикации

Underlay material for GaN epitaxial growth and its making method

Номер: CN0101106161A
Принадлежит:

The invention relates to a substrate material and the fabrication method thereof for Gallium Nitride (GaN) epitaxial growth, which is characterized in that (1) the material is the silicon on insulator (SOI) or the substrate material with a three-layered compound structure of monocrystalline silicon - insulating buried layer - monocrystalline silicon; (2) the top silicon layer is etched as separated silicon islands; the smallest distance between the silicon islands is two times larger than the thickness of epitaxial GaN; and the silicon substrate and the insulating buried layer under the central area of separated silicon islands are completely etched, while the other parts of the silicon substrate and the insulating buried layer are remained, the central area of separated silicon islands is thus suspended, and the suspended area S2 is larger than 70 percent of the area of the separated silicon islands (S1) and smaller than 90 percent. An ultra-thin substrate is provided by the center-suspended ...

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