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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 44. Отображено 44.
08-12-2010 дата публикации

Method for manufacturing silica-based high-efficiency double-junction solar battery

Номер: CN0101521248B
Принадлежит:

The invention discloses a method for manufacturing a silica-based high-efficiency double-junction solar battery. The method comprises the following steps: firstly, growing a dense and uniform woolen sThe invention discloses a method for manufacturing a silica-based high-efficiency double-junction solar battery. The method comprises the following steps: firstly, growing a dense and uniform woolen sric field form a bottom electrode which forms ohmic contact after sintering; and finally, preparing a top layer electrode on the top layer of the battery by using a magnetic control sputtering device,ric field form a bottom electrode which forms ohmic contact after sintering; and finally, preparing a top layer electrode on the top layer of the battery by using a magnetic control sputtering device, and sputtering a metal electrode on the N type surface of the top layer CaAs battery to form the ohmic contact so as to obtain the high-efficiency double-junction solar battery.and sputtering a metal ...

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20-07-2011 дата публикации

Method for improving surface diffusion of solar cell

Номер: CN0102130211A
Принадлежит:

The invention discloses a method for improving surface diffusion of a solar cell, comprising the following steps of: a, introducing Ar gas at 750-850 DEG C and annealing a P-type monocrystalline silicon slice; b, oxidizing the silicon slice annealed in the step a; c, carrying out phosphorus diffusion on the oxide layer silicon slice generated in the step b; d, introducing a large amount of nitrogen and oxygen to process the silicon slice diffused in the step c; and e, introducing the Ar gas at 750-850 DEG C for annealing the silicon slice processed in the step d. In the invention, by introducing the Ar gas in the diffusion process to anneal the silicon slice, the surface of the silicon surface is uniform in diffusion and the conversion efficiency of the solar cell is improved. Compared with a traditional diffusion process, the method provided by the invention has the advantages of strong controllability and strong repeatability under the conditions of not changing the traditional diffusion ...

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13-04-2011 дата публикации

Method for improving optical energy conversion rate of dye sensitized solar cell

Номер: CN0102013329A
Принадлежит:

The invention discloses a method for improving the optical energy conversion rate of a dye sensitized solar cell, which belongs to the field of dye sensitized solar cells, in particular to a method for improving the optical energy conversion rate of the dye sensitized solar cell by processing the non-conductive face of the counter electrode of the dye sensitized solar cell. The invention aims to solve the problem that optical energy is lost because a major part of incident light passing through an optical anode is transmitted out from the foil counter electrode and not fully used. The dye sensitized solar cell prepared by the method comprises a first electrode of a conductive transparent substrate, a light absorbing layer arranged on one side of the first electrode, a dye sensitizing agent absorbed onto the surface of the light absorbing layer, a second electrode facing the first electrode, electrolyte filled between the first electrode and the second electrode, and a light scattering layer ...

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29-06-2011 дата публикации

Method for detecting gas generator by automobile safety air sac controller and circuit board therefor

Номер: CN0101149600B
Принадлежит:

This invention relates to a method for detecting gas generator of car safety airbag controller and required circuit board, which is characterized in that on/off of reference VCC5V power is controlled by an I/O interface of a single chip microcomputer, the VCC is pressurized on a serial circuit of a resistor and a gas generator, the voltage of the two ends of the gas generator is detected through the two AD ports of the single chip microcomputer, then the reduction voltage of the gas generator is obtained by calculating and finally the internal resistance of the gas generator can be calculated. According to the invention, micro resistance can be detected in a shorttime in the case of micro current. The invention has the advantage of convenient control, high test precision and cheap price.

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26-03-2008 дата публикации

Method for detecting gas generator by automobile safety air sac controller

Номер: CN0101149600A
Принадлежит:

This invention relates a kind method of car safety air-pocket controller detecting gas generator and it is characterized in that it controls on-off for the standard VCC5V power using a I/O interface of chip computer and the VCC is added on a in-line circuit of a resistance and a gas generator and detects the voltages of the two ends of the gas generator through the two AD interfaces of the chip computer and then knows the reduction voltage of the gas generator by calculating and figures out the inherent resistance of the gas generator. This invention can detect the micro resistance in a short time in the case of micro current. The merits of this invention are that convenience control, high test precision and cheap price.

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23-05-2012 дата публикации

Dye-sensitized solar battery with sealing structure and preparation method thereof

Номер: CN0101916668B
Принадлежит:

The invention discloses a dye-sensitized solar battery with a sealing structure, which comprises conducting glass and a platinum electrode substrate, and an electrolyte is filled between the platinum electrode and the conducting glass. The conducting glass is printed with a plurality of silver grids, light anodes smaller than the silver grids are printed inside the silver grids, and the silver grids are coated with at least one layer of film with an injection hole. The film seals the silver grids, the electrolyte is filled between the film and the silver grids, and the platinum electrode substrate covers the film. Moreover, the injection hole is sealed by curing glue. Because of the combination of the film, the silver grids and the platinum electrode substrate in the structure, the probability that the electrolyte corrodes the silver grids and a packing material is reduced, so that the problems of volatilization and leakage of the electrolyte are finally avoided, the stability of the dye-sensitized ...

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20-04-2011 дата публикации

Preparation method of copper-indium-gallium-sulphur film for solar battery

Номер: CN0102024878A
Принадлежит:

The invention provides a preparation method of a copper-indium-gallium-sulphur film for a solar battery, comprising the following steps: (a) preparing precursor oil ink slurry; (b) preparing a precursor film; (c) carrying out drying and reduction; and (d) carrying out vulcanization and annealing. Compared with the traditional high-vacuum gas phase method, the copper-indium-gallium-sulphur film screen print preparation method provided by the invention has the characteristics of simple process, low cost, strong controllability and strong repeatability; the preparation method can be used for preparing an absorption film with large area and uniform ingredient; large-scale production is easy to realize, heat investment is less, and raw material utilization factor is high; and rapid development of copper-indium-gallium-sulphur film industrialization is promoted by using the preparation method.

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16-04-2014 дата публикации

Application of ENO2 gene to regulation and control of plant growth and development

Номер: CN103725702A
Принадлежит:

The invention provides application of an ENO2 gene to regulation and control of plant growth and development. The ENO2 gene is integrated into a plant genome by adopting a genetic engineering technology, so that the plant growth and development can be adjusted. Research shows that 1, the pollen morphology of Arabidopsis is abnormal due to the insertion mutation of T-DNA generated from the eno2, so that the eno2 plays an important role in the normal development of pollen; 2, due to the insertion mutation of T-DNA generated from the eno2, the taproot length of the Arabidopsis is obviously reduced, the number of rosette leaf blades of the Arabidopsis is decreased, the total area of the Arabidopsis is obviously reduced, all the leaf blades of the Arabidopsis are reticular, and the weight of the overground part and the underground part of the Arabidopsis is obviously lowered, so that the eno2 plays an important role in the normal vegetative growth of the Arabidopsis.

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10-08-2005 дата публикации

Gas producing composition and its preparation method

Номер: CN0001651360A
Принадлежит:

An aerogenic composition used for protecting the passengers in coach and airplane is prepared from fuel, oxidant, ignition improver and adhesive. Its preparing process is also disclosed. Its advantages are high air output and high properties.

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23-11-2011 дата публикации

Flexible thin film solar cell and packaging method thereof

Номер: CN0102254975A
Принадлежит:

The invention discloses a flexible thin film solar cell, which comprises a solar cell layer and a packaging layer, wherein the packaging layer comprises a first packaging layer and a second packaging layer; the solar cell layer is packaged between the first packaging layer and the second packaging layer; and the packaging layer consists of a first ethylene vinyl acetate (EVA) crosslinking layer, a second EVA crosslinking layer, a first Teflon layer and a second Teflon layer. The invention also provides a packaging method, which comprises the following steps of: 1, arranging the first Teflon layer, the first EVA crosslinking layer, the solar cell layer, the second EVA crosslinking layer and the second Teflon layer in turn to form a five-layer structure; and 2, laminating and packaging the five-layer structure in the step 1. In the flexible thin film solar cell manufactured by the packaging method, Teflon plastic layers are introduced to serve as packaging materials, so that the photoelectric ...

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23-07-2014 дата публикации

Motor controller for detecting IGBT failure states through software

Номер: CN103944144A
Принадлежит:

The invention discloses a motor controller for detecting IGBT failure states through software. The motor controller comprises a DSP, an isolation drive failure protection circuit, a failure detection signal synthetic circuit, an IGBT drive H bridge and a drive motor, the isolation drive failure protection circuit is connected with the DSP, the IGBT drive H bridge is connected with the isolation drive failure protection circuit, the failure detection signal synthetic circuit is respectively connected with the isolation drive failure protection circuit and the DSP, the failure detection signal synthetic circuit detects the failure states of the IGBT drive H bridge, the failure states are synthesized, the failure states and the synthesized general failure state are together fed into the DSP, and the DSP completes detection and protection of the failure states through a software detection algorithm. The motor controller detects the IGBT failure states in real time, and therefore the IGBT failures ...

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15-04-2009 дата публикации

Method for preparing silicon solar battery pile face in magnetic field

Номер: CN0101409313A
Принадлежит:

The invention discloses a method for preparing a texture of a silicon solar cell under a magnetic field. The method comprises the following technological steps: firstly, a polysilicon wafer is put into a texture preparation reactor with prepared acid reaction solution for reaction, and the texture preparation reactor is put in the magnetic field, wherein, the reaction solution is made from 0.05%-15% of nitric acid or chromic acid by mass, 1%-30% of hydrofluoric acid by mass and 1%-30% of phosphoric acid or acetic acid by mass; the temperature of the reaction solution is kept at 0-30 DEG C, and the polysilicon wafer is washed in 0.5%-3% sodium hydroxide solution for 1-5 minutes after reaction in the acid solution; secondly, the magnetic field is applied in the whole course of preparing the texture of the silicon solar cell, the magnetic field strength is kept at 0-10T, and the texture preparation time is 1-45 minutes. A compact and even texture can be grown on the surface of the polysilicon ...

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04-08-2010 дата публикации

Method for preparing flexible CdTe thin film solar cell

Номер: CN0101794840A
Принадлежит:

The invention discloses a method for preparing a flexible CdTe thin film solar cell. The solar cell structure consists of stainless steel, a graphite buffer layer, CdTe, CdS, and ITo, wherein the CdS and the CdTe form a PN node. The method is characterized by adopting the following preparation steps: a, pretreating a stainless steel substrate; b, growing the graphite buffer layer by using chemical vapor phase; c, growing a CdTe thin film on the stainless substrate with the prepared graphite buffer layer by using a close-space sublimation method; and annealing the CdTe thin film by using the CdCl2; d, growing a CdS thin film on a substrate with the prepared CdTe thin film by using the close-space sublimation method; e, preparing an In2O3:F transparent conductive film on the stainless substrate; and f, obtaining the flexible CdTe thin film solar cell. The method has the advantages of simple process, streamlined operation and suitability for large-scale factory production.

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26-03-2008 дата публикации

Automobile safety airbag control ignition energy storing and discharging equipment

Номер: CN0101148163A
Принадлежит:

The energy storing and discharge device for controlling the ignition of safety air bag in automobile consists of resistors, diodes, transistors, electrolytic capacitors and one monolithic computer, and is powered with one 12 V power source. It has one multistage discharge circuit to discharge electricity and can avoid malfunction in the condition of element damage. The present invention has high reliability and low cost.

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27-07-2011 дата публикации

Dye sensitized solar cell and method for treating surface of incident electrode thereof

Номер: CN0102136373A
Принадлежит:

The invention discloses a method for treating the surface of an incident electrode of a dye sensitized solar cell. The method comprises the following steps of: washing conductive glass; preparing a screen printing plate, and printing a pattern on the non-conductive surface of the conductive glass by using the plate; placing the conductive glass with the pattern into etching solution for etching; and washing the etched conductive glass. The invention also provides a dye sensitized solar cell prepared by the method for treating the surface; the surface, back to a back electrode, of the incident electrode of the dye sensitized solar cell is an etched anti-reflection layer etched with the pattern. Compared with the conventional dye sensitized solar cell, the dye sensitized solar cell has the advantages that: the surface of the incident electrode of the dye sensitized solar cell are etched by using different chemical etching solution, namely the pattern is etched on the non-conductive surface ...

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28-03-2012 дата публикации

Preparation method of dye-sensitized solar cell provided with light reflecting layer

Номер: CN0102034615B
Принадлежит:

The invention discloses a preparation method of a dye-sensitized solar cell provided with a light reflecting layer, which comprises the following process steps: (a) cleaning; (b) preparing a TiO2 nano-transparent layer; (c) preparing a TiO2 light scattering layer; (d) forming a light anode; (e) bonding the reflecting layer; (f) butting and packaging electrodes; (g) injecting electrolyte; and (h) sealing an electrolyte injection opening to obtain the solar cell. The dye-sensitized solar cell prepared by the invention can fully reflect the light which permeates through the counter electrodes of the cell, so that the loss of the light energy is effectively inhibited, and the utilization rate of the light energy is improved, thereby improving the conversion rate of the light energy of the cell. Moreover, the preparation method provided by the invention is simple in operation, has low cost and can not influence the whole preparation processes of the solar cell.

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17-03-2010 дата публикации

Preparation method of CdTe solar cells under magnetic field

Номер: CN0101673786A
Принадлежит:

The invention discloses a preparation method of CdTe solar cells under a magnetic field, which comprises the following steps: pretreating a transparent glass substrate; preparing an In2O3:F transparent conductive film on the transparent glass substrate; putting the glass substrate in a near space subliming furnace, and growing a Cds buffer layer on the glass substrate; growing a CdTe film on the prepared CdS film by using a near space sublimation method, and applying a magnetic field of 1-15T by using a superconducting magnet coil on the substrate to grow a CdTe absorption layer; spattering ametal back electrode on the CdTe surface to form an ohmic contact; and obtaining the high-efficiency CdTe film solar cell. Since the CdTe solar cell is prepared by using the near space sublimation method under the intense magnetic field, the surface smoothness and the compactness of the CdTe film are obviously improved, and the conversion efficiency of the CdTe film solar cell is enhanced.

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17-06-2009 дата публикации

Manufacturing process for high-efficiency multi-junction solar cell

Номер: CN0101459206A
Принадлежит:

The invention discloses a manufacturing method for high-efficient multi-junction solar cells, which structurally comprises Si/GaAs/InGaP three layer structures, the technical steps comprise utilizing a chemical corrosion method under a magnetic field to generate dense and uniform matte on the surface of a monocrystalline silicon chip to form a bottom-layer cell, utilizing MBE to grow a GaAs cell on an N type surface of the silicon chip of a prepared PN junction, utilizing MBE to grow an InGaP cell on an N type surface of the prepared GaAs cell, then preparing and forming back electrodes and back electric fields of the cells on a P type surface of the silicon chip of the three layers of cells, and preparing a top-layer electrode on the top layer of the cells again, thereby obtaining the high-efficient multi-junction solar cell. Through the method, a crystalline silicon cell can be overlapped and prepared with two layers of sub-cells again, thereby resolving the technical difficulty of low ...

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20-07-2011 дата публикации

Method for preparing flexible CdTe thin film solar cell

Номер: CN0101794840B
Принадлежит:

The invention discloses a method for preparing a flexible CdTe thin film solar cell. The solar cell structure consists of stainless steel, a graphite buffer layer, CdTe, CdS, and ITo, wherein the CdS and the CdTe form a PN node. The method is characterized by adopting the following preparation steps: a, pretreating a stainless steel substrate; b, growing the graphite buffer layer by using chemical vapor phase; c, growing a CdTe thin film on the stainless substrate with the prepared graphite buffer layer by using a close-space sublimation method; and annealing the CdTe thin film by using the CdCl2; d, growing a CdS thin film on a substrate with the prepared CdTe thin film by using the close-space sublimation method; e, preparing In2O3 on the stainless steel substracte with the prepared CdTe thin film; F transparent conductive film on the stainless substrate; and f, obtaining the flexible CdTe thin film solar cell. The method has the advantages of simple process, streamlined operation and ...

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15-12-2010 дата публикации

Dye-sensitized solar battery with sealing structure and preparation method thereof

Номер: CN0101916668A
Принадлежит:

The invention discloses a dye-sensitized solar battery with a sealing structure, which comprises conducting glass and a platinum electrode substrate, and an electrolyte is filled between the platinum electrode and the conducting glass. The conducting glass is printed with a plurality of silver grids, light anodes smaller than the silver grids are printed inside the silver grids, and the silver grids are coated with at least one layer of film with an injection hole. The film seals the silver grids, the electrolyte is filled between the film and the silver grids, and the platinum electrode substrate covers the film. Moreover, the injection hole is sealed by curing glue. Because of the combination of the film, the silver grids and the platinum electrode substrate in the structure, the probability that the electrolyte corrodes the silver grids and a packing material is reduced, so that the problems of volatilization and leakage of the electrolyte are finally avoided, the stability of the dye-sensitized ...

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27-07-2011 дата публикации

Dye sensitized solar cell treated by ion implantation and preparation method thereof

Номер: CN0102136372A
Принадлежит:

The invention discloses a preparation method for a dye sensitized solar cell treated by ion implantation. The preparation method comprises the following steps of: washing a light anode substrate; preparing a light absorption layer; performing thermal treatment for the first time on a light anode; implanting metal ions into the light anode; performing thermal treatment for the second time on the modified light anode subjected to the ion implantation; preparing a pair electrode; butt-jointing the pair electrode and the light anode; and encapsulating to prepare the dye sensitized solar cell. The invention also discloses a dye sensitized solar cell, which comprises the light anode, a dye sensitizing agent, the pair electrode and electrolyte, wherein the light anode is treated by ion implantation modification; and the ion implantation modification is Cu/TiO2 modification, Zn/TiO2 modification or Fe/TiO2 modification. By the method, a metal evaporation vacuum arc source ion implanter is used ...

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30-12-2009 дата публикации

Vehicle control unit of electric vehicle

Номер: CN0101612923A
Принадлежит:

The invention discloses a vehicle control unit of an electric vehicle; the control unit is an embedded controller based on a singlechip and is provided with 6 interfaces; an accelerator pedal sensor, a brake signal sensor and a working voltage current Hall sensor of the control unit are connected with A/D interfaces; a rotation speed sensor is connected with a PWM interface; an ignition switch, a power failure are connected with an I/O interface; a storage cell management system, a power-assisted steering system, an electric motor controller and a solar cell panel controller are connected with a CAN communication interface by a high-speed CAN bus; a calibration matching and a failure diagnosis are connected with an SC10 communication interface; a light management system is connected with an SCI1 communication interface by a LIN bus; the control unit carries out communication by the bus and accepts, filters and handles the vehicle state.

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28-01-2015 дата публикации

Flexible substrate CdTe thin-film solar cell and preparing method thereof

Номер: CN104319298A
Принадлежит:

The invention discloses a flexible substrate CdTe thin-film solar cell and a preparing method thereof. The flexible substrate CdTe thin-film solar cell is composed of the following seven parts including a transparent flexible substrate thin-film material layer, a transparent conducting thin film layer, a negative electrode, a CdS thin-film window layer, a CdTe thin-film absorbing layer, a back electrode metal contact layer and a flexible thin-film material packaging layer, wherein the transparent conducting thin film layer is formed in the manner that ZnxCd1-xO deposits on the flexible substrate thin-film material layer, the negative electrode is formed on the transparent conducting thin film layer, the CdS thin-film window layer is arranged on the transparent conducting thin film layer, the CdTe thin-film absorbing layer is arranged on the CdS thin-film window layer, the back electrode metal contact layer is arranged on the CdTe thin-film absorbing layer, and the flexible thin-film material ...

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16-06-2010 дата публикации

Vehicle solar semiconductor temperature regulating device

Номер: CN0101734124A
Принадлежит:

The invention discloses a vehicle solar semiconductor temperature regulating device which comprises a solar battery power generating device, a semiconductor refrigerating chip, a controller and a charge and discharge controller, wherein the solar battery power generating device is installed on a vehicle body, the semiconductor refrigerating chip is installed on the vehicle body and used for regulating the temperature in a vehicle, the controller is arranged in the vehicle, and the charge and discharge controller is used for connecting the solar battery power generating device and a storage battery; and the charge and discharge controller is connected with the controller, and the controller is connected with the semiconductor refrigerating chip. The device of the invention solves the problems of difficult temperature reduction of the vehicle during parking in summer and extremely low temperature in the vehicle in winter, ensures quite comfortable temperature in the vehicle when the vehicle ...

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27-04-2011 дата публикации

Preparation method of dye-sensitized solar cell provided with light reflecting layer

Номер: CN0102034615A
Принадлежит:

The invention discloses a preparation method of a dye-sensitized solar cell provided with a light reflecting layer, which comprises the following process steps: (a) cleaning; (b) preparing a TiO2 nano-transparent layer; (c) preparing a TiO2 light scattering layer; (d) forming a light anode; (e) evaporating the reflecting layer in vacuum or bonding the reflecting layer; (f) butting and packaging electrodes; (g) injecting electrolyte; and (h) sealing an electrolyte injection opening to obtain the solar cell. The dye-sensitized solar cell prepared by the invention can fully reflect the light which permeates through the counter electrodes of the cell, so that the loss of the light energy is effectively inhibited, and the utilization rate of the light energy is improved, thereby improving the conversion rate of the light energy of the cell. Moreover, the preparation method provided by the invention is simple in operation, has low cost and can not influence the whole preparation processes of ...

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23-05-2012 дата публикации

Preparation method of CdTe solar cells under magnetic field

Номер: CN0101673786B
Принадлежит:

The invention discloses a preparation method of CdTe solar cells under a magnetic field, which comprises the following steps: pretreating a transparent glass substrate; preparing an In2O3:F transparent conductive film on the transparent glass substrate; putting the glass substrate in a near space subliming furnace, and growing a Cds buffer layer on the glass substrate; growing a CdTe film on the prepared CdS film by using a near space sublimation method, and applying a magnetic field of 1-15T by using a superconducting magnet coil on the substrate to grow a CdTe absorption layer; spattering a metal back electrode on the CdTe surface to form an ohmic contact; and obtaining the high-efficiency CdTe film solar cell. Since the CdTe solar cell is prepared by using the near space sublimation method under the intense magnetic field, the surface smoothness and the compactness of the CdTe film are obviously improved, and the conversion efficiency of the CdTe film solar cell is enhanced.

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18-06-2014 дата публикации

Vector controller based on software dead-time compensation

Номер: CN103872960A
Принадлежит:

The invention discloses a vector controller based on software dead-time compensation. The vector controller based on software dead-time compensation comprises a digital signal processor (DSP), a permanent magnet synchronous motor (PMSM), a rotary transformer, a corner position decoder and an IGBT driving H-bridge. The DSP comprises a space voltage vector pulse width modulator (SVPWM). The IGBT driving H-bridge is connected with the PMSM. The rotary transformer is connected with the corner position decoder and the PMSM. The DSP is connected with the corner position decoder. The software dead-time compensation algorithm is used for compensating for the switch-on time and the switch-off time of the SVPWM. A drive signal generated by the SVPWM controls the switch-on and switch-off of the IGBT driving H-bridge, so that the PMSM is driven. According to the vector controller based on software dead-time compensation, the dead-time compensation function is achieved based on the corner position, ...

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24-12-2014 дата публикации

Method for improving solar cell conversion efficiency

Номер: CN104241454A
Принадлежит:

The invention relates to the field of solar cells, in particular to a method for improving solar cell conversion efficiency. The method includes washing silicon substrates and then performing diffusion, etching and anti-reflective film deposition to the silicon substrates; printing silver electrodes on the back surfaces of the silicon substrates after the anti-reflective film deposition and drying the silicon substrates printed with the back silver electrodes in nitrogen gas; printing aluminum back-surface fields on the dried silicon substrates which are printed with the back silver electrodes and then drying the silicon substrates which are printed with the aluminum back-surface fields in the nitrogen gas; printing front silver gate electrodes on the dried silicon substrates which are printed with the aluminum back-surface fields and then drying the silicon substrates printed with the front silver gate electrodes in the nitrogen gas; and sintering the dried silicon substrates printed with ...

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23-12-2009 дата публикации

Preparation method of CdTe film solar cell

Номер: CN0101609860A
Принадлежит:

The invention discloses a preparation method of a CdTe film solar cell; a CdTe film adopts a near space sublimation method to prepare a CdS/CdTe cell on transparent conductive glass, a Ni back electrode is obtained by adopting magnetron sputtering. The preparation method comprises the following steps: firstly, carrying out transparent glass substrate pre-treatment; preparing an In2O3: F transparent conductive film; using the near space sublimation method to grow a CdS film on the prepared transparent conductive film; using the near space sublimation method to grow the CdTe film on the prepared CdS film, and using CdCl2 to carry out annealing treatment on the film to cause a CdS/CdTe interface to be recombined; using a magnetron sputtering instrument to sputter the Ni back electrode on the CdTe surface, and annealing to form ohm contact at high temperature; obtaining the effective CdTe film solar cell. In the invention, the magnetron sputtering instrument is connected with a near space subliming ...

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22-12-2010 дата публикации

Method for producing 2-nitro-p-methylsullfonyl benzoic acid

Номер: CN0101921215A
Принадлежит:

The invention relates to a method for producing 2-nitro-p-methylsullfonyl benzoic acid. The method comprises the following steps of: dissolving methyl p-tolyl sulfone with concentrated sulfuric acid; oxidizing methyl tolyl sulfone into 2-nitro methyl p-tolyl sulfone with mixed acid of concentrated nitric acid and concentrated sulfuric acid at low temperature; oxidizing the 2-nitro methyl p-tolyl sulfone into 2-nitro-p-methylsullfonyl benzoic acid with potassium permanganate at a proper temperature; and then purifying the product respectively with sodium hydroxide and hydrochloric acid. The whole reaction line is clear and definite, has high operable degree and is particularly suitable for the industrial production; and moreover, the reaction product is not easy to pollute the environment, and the yield and the purity are high. The invention belongs to the technical field of fine chemical industry.

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09-06-2010 дата публикации

Preparation method of multi-junction solar cell

Номер: CN0101728458A
Принадлежит:

The invention discloses a preparation method of a multi-junction solar cell. The solar cell has a Si/GaAs/InGaP three-layer structure, wherein the bottom cell is a PN junction cell of Si, the intermediate cell is a PN junction cell of GaAs, the top cell is a PN junction cell of InGaP and each sub-cell directly grows on the substrate of a silicon cell. The method comprises the following processing steps: adopting chemical corrosion method to grow dense and uniform texture on the surface of monocrystalline wafer under magnetic field, diffusing to prepare PN junction and form the bottom cell in a high temperature diffusion furnace; growing GaAs tunnel junction on the surface of silicon wafer N-type junction of the prepared PN junction; growing the GaAs cell on the tunnel junction; growing the GaAs tunnel junction on the N-type junction of the GaAs cell; growing the InGaP cell on the tunnel junction; growing an anti-reflective film on the InGaP cell; forming ohmic contact by using screen printing ...

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16-06-2010 дата публикации

Living strain induced non-vacuum ion implantation method

Номер: CN0101736001A
Принадлежит:

The invention discloses a living strain induced non-vacuum ion implantation method, which changes the conventional method of adopting dry strain spores for ion implantation strain induced mutation, and putting the dry strain spores in a vacuum chamber target disc for ion implantation. Because the dry strain spores have low living activity and are in a dormant state, the induced mutation efficiency is low after the ion implantation. The living strain induced non-vacuum ion implantation method adopts ion beam stream educed by a high-energy ion implantation machine to bombard the sprouting strain spores in a strain incubator so that the water and organic molecules in the sprouting strain spores produce free radicals, gene breakage and ion implantation, and implanted ions participate in breakage recombination of DNA molecular chains. The specific implanted ions selected by the non-vacuum ion implantation method participate in the breakage recombination of the DNA molecular chains, so the method ...

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24-11-2010 дата публикации

Method for uncovering coal in vertical shaft

Номер: CN0101892842A
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The invention discloses a method for uncovering coal in a vertical shaft, which comprises the following steps of: acquiring engineering information of a coal bed to be uncovered in the vertical shaft, judging whether the coal bed to be uncovered is an outburst coal bed or not according to the engineering information, and if so, performing outburst prevention treatment on the coal bed to be uncovered; and uncovering the coal bed to be uncovered after the outburst prevention treatment. Compared with the technical scheme that all coal beds to be uncovered are subjected to the outburst prevention treatment and then the coal beds to be uncovered are uncovered in the prior art, the technical scheme of the invention is that: whether the coal bed to be uncovered is the outburst coal bed or not is judged first, if the coal bed to be uncovered is the outburst coal bed, the outburst coal bed is subjected to the outburst prevention treatment, and the coal bed to be uncovered after the outburst prevention ...

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09-04-2008 дата публикации

Gas production drug for automobile safety airbag gas generator and process for manufacturing same

Номер: CN0101157589A
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The invention discloses a gas producing drug used for the gas generator of the car air bag and the corresponding fabrication technology. The drug is a novel non-azide gas generating medicine without residue or with low-residue, and the drug comprises guanidine nitrate, nitroguanidine, ammonium nitrate, phase-stabilizer, combustion promoter, adhesive, and other additives. The phase-stabilizer is nitre or potassium perchlorate, the combustion promoter is or milori blue phthalocyanine blue, and the adhesive is carboxymethyl cellulose sodium or polyvinyl alcohol. The gas producing drug has fairly high gas producing rate and extremely low solid residue (lowest rate can be below 5 percent), thereby being in particular to the combined gas generator without filtering net and the smoke type gas generator with fairly small volume.

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02-09-2009 дата публикации

Method for manufacturing silica-based high-efficiency double-junction solar battery

Номер: CN0101521248A
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The invention discloses a method for manufacturing a silica-based high-efficiency double-junction solar battery. The method comprises the following steps: firstly, growing a dense and uniform woolen surface on the surface of a monocrystalline silicon piece by adopting a chemical corrosion method under a magnetic field, then diffusing the woolen surface in a high-temperature diffusion furnace to form PN junctions so as to form a bottom battery; and after corrosion, removing phosphorosilicate glass on the surface of the silicon piece by washing; secondly, epitaxially growing CaAs battery by using an MBE on an N type surface of the silicon piece of the prepared the PN junctions; thirdly, evaporating an anti-reflecting film on the surface of the prepared PN junction CaAs battery; fourthly, preparing and forming a back electrode and a back electric field on the silicon piece P type surface of a double-layer battery by using a screen printer, and the printed back electrode and the back electric ...

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19-01-2011 дата публикации

Preparation method of multi-junction solar cell tunnel junction

Номер: CN0101950773A
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The invention discloses a preparation method of a multi-junction solar cell tunnel junction. The tunnel junction is in a four-layer structure of n+GaAs/n++GaAs/p++GaAs/p+GaAs and comprises an n-type buffer layer as a bottom layer, a GaAs tunnel junction as a middle layer and a p-type buffer layer as a top layer. The method comprises the following process steps of: epitaxially growing an n-type GaAs transition layer on a substrate battery; growing a GaAs tunnel junction on the transition layer; epitaxially growing a p-type GaAs transition layer on the p-type surface of the GaAs tunnel junction; and acquiring the tunnel junction of a solar cell.

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25-05-2011 дата публикации

Preparation method of multi-junction solar cell

Номер: CN0101728458B
Принадлежит:

The invention discloses a preparation method of a multi-junction solar cell. The solar cell has a Si/GaAs/InGaP three-layer structure, wherein the bottom cell is a PN junction cell of Si, the intermediate cell is a PN junction cell of GaAs, the top cell is a PN junction cell of InGaP and each sub-cell directly grows on the substrate of a silicon cell. The method comprises the following processingsteps: adopting chemical corrosion method to grow dense and uniform texture on the surface of monocrystalline wafer under magnetic field, diffusing to prepare PN junction and form the bottom cell in a high temperature diffusion furnace; growing GaAs tunnel junction on the surface of silicon wafer N-type junction of the prepared PN junction; growing the GaAs cell on the tunnel junction; growing the GaAs tunnel junction on the N-type junction of the GaAs cell; growing the InGaP cell on the tunnel junction; growing an anti-reflective film on the InGaP cell; forming ohmic contact by using screen printing ...

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10-08-2005 дата публикации

Moulding product of gas producing medicinal preparation and its preparation method

Номер: CN0001651361A
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A moulded aerogenic chemical has a central through hole and several slots on its both surfaces. Its preparing process is also disclosed. Its advantages are high aerognic speed and air output, and reliable ignition.

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23-11-2011 дата публикации

Thellungiella salsuginea COR15a gene promoter and application thereof

Номер: CN0102250900A
Автор: GENFA ZHANG, ZHANG GENFA
Принадлежит:

The invention relates to a Thellungiella salsuginea COR15a gene promoter and application thereof. The promoter has a nucleotide sequence shown in SEQ ID NO. 1, or has a nucleotide sequence which is derived from the nucleotide sequence shown in SEQ ID NO. 1 by substitution, deletion and/or addition of one or more nucleotides and has equivalent function with the nucleotide sequence shown in SEQ ID NO. 1. In particular the invention relates to two low-temperature specific response elements C-repeat/DRE in the sequence of the promoter. In the invention, the low-temperature induction property of the Thellungiella salsuginea COR15a gene promoter is verified by cloning the Thellungiella salsuginea COR15a gene promoter and analyzing the structure and functional sequence of the Thellungiella salsuginea COR15a gene promoter. The low-temperature inducible promoter obtained from Thellungiella salsuginea provides a new type of adversity and stress-inducible promoter element for researching gene engineering ...

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25-01-2012 дата публикации

Dye-sensitized solar battery light anode and preparation method thereof

Номер: CN0102074373B
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The invention discloses a dye-sensitized solar battery light anode and a preparation method thereof. The light anode sequentially comprises a mixing scattering layer which is in close contact with transparent conductive glass and an absorbing layer which is in contact with the mixing scattering layer, wherein the mixing scattering layer is formed by mixing large-particle Tio2 particles and small-particle Tio2 particles, and the thickness of the mixing scattering layer is 4-6 mu m; and the absorbing layer is composed of small-particle Tio2 particles, and the thickness of the absorbing layer is 10-12mu m. The preparation method comprises the following steps: a. preparing absorbing layer slurry materials; b. preparing mixing scattering layer slurry materials; c. printing the slurry silver prepared in the step b on the conductive glass to prepare the mixing scattering layer; d. printing the slurry silver prepared in the step a on the mixing scattering layer to prepare the absorbing layer; and ...

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06-07-2011 дата публикации

Method for preparing photoanode in dye-sensitized solar cell in strong magnetic field

Номер: CN0102117702A
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The invention discloses a method for preparing a photoanode in a dye-sensitized solar cell in a strong magnetic field, belongs to the field of dye-sensitized solar cells, and in particular relates to a method for preparing a titanium oxide coating in the photoanode in the strong magnetic field, which aims to solve the problems of low surface evenness and compactness in a photoanode titanium oxide thin film prepared by the conventional high-temperature sintering method. The method comprises the following steps of: (a) cleaning conductive glass; (b) preparing a TiO2 nano transparent layer; (c) preparing a TiO2 light scattering layer; and (d) putting the conductive glass on which the TiO2 thin film is printed in an atmosphere furnace under the action of the strong magnetic field of between 1 and 14T, introducing oxygen until air pressure in the atmosphere furnace is 3 to 5kPa, heating to the temperature of between 450 and 480 DEG C, performing high-temperature sintering for 30 to 40 minutes ...

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25-05-2011 дата публикации

Dye-sensitized solar battery light anode and preparation method thereof

Номер: CN0102074373A
Принадлежит:

The invention discloses a dye-sensitized solar battery light anode and a preparation method thereof. The light anode sequentially comprises a mixing scattering layer which is in close contact with transparent conductive glass and an absorbing layer which is in contact with the mixing scattering layer, wherein the mixing scattering layer is formed by mixing large-particle Tio2 particles and small-particle Tio2 particles, and the thickness of the mixing scattering layer is 4-6 mu m; and the absorbing layer is composed of small-particle Tio2 particles, and the thickness of the absorbing layer is 10-12mu m. The preparation method comprises the following steps: a. preparing absorbing layer slurry materials; b. preparing mixing scattering layer slurry materials; c. printing the slurry silver prepared in the step b on the conductive glass to prepare the mixing scattering layer; d. printing the slurry silver prepared in the step a on the mixing scattering layer to prepare the absorbing layer; and ...

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20-01-2010 дата публикации

Method for preparing silicon solar battery texturing

Номер: CN0100583465C
Принадлежит:

The invention discloses a method for preparing a texture of a silicon solar cell under a magnetic field. The method comprises the following technological steps: firstly, a polysilicon wafer is put into a texture preparation reactor with prepared acid reaction solution for reaction, and the texture preparation reactor is put in the magnetic field, wherein, the reaction solution is made from 0.05%-15% of nitric acid or chromic acid by mass, 1%-30% of hydrofluoric acid by mass and 1%-30% of phosphoric acid or acetic acid by mass; the temperature of the reaction solution is kept at 0-30 DEG C, and the polysilicon wafer is washed in 0.5%-3% sodium hydroxide solution for 1-5 minutes after reaction in the acid solution; secondly, the magnetic field is applied in the whole course of preparing the texture of the silicon solar cell, the magnetic field strength is kept at 0-10T, and the texture preparation time is 1-45 minutes. A compact and even texture can be grown on the surface of the polysilicon ...

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22-12-2010 дата публикации

Production method of pharmaceutical-grade ferrous sulfate

Номер: CN0101921000A
Принадлежит:

The invention relates to a production method of pharmaceutical-grade ferrous sulfate, which comprises the following steps: adding feed-grade ferrous sulfate to a sulfuric acid solution while mixing, dissolving the feed-grade ferrous sulfate; raising the temperature, adding industrial grade reduction iron powder, raising the temperature again, stirring for a period of time, and adjusting the pH value by sulfuric acid or iron powder; filtering; reducing the temperature to crystallize and separate out ferrous sulfate; centrifugally dehydrating; and drying. The production method has the characteristic of being suitable for industrial production, belonging to the technical filed of the pharmaceutical technology; and the pharmaceutical-grade ferrous sulfate prepared by the method of the invention has high purity and reliable quality.

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