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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 28. Отображено 28.
23-06-2023 дата публикации

COB packaging method and COB display module

Номер: CN116314552A
Автор: GONG WEN, YAN CHUNWEI
Принадлежит:

The invention discloses a COB packaging method and a COB display module, the COB packaging method comprises the following steps: S1, an LED light-emitting mechanism is provided, the LED light-emitting mechanism comprises a substrate and a plurality of light-emitting assemblies dispersedly arranged on the substrate, and each light-emitting assembly comprises a light-emitting chip inversely arranged on the upper side of the substrate and an optical material layer stacked on the upper side of the light-emitting chip; s2, arranging a light-blocking grating on the substrate, wherein the light-blocking grating is formed by light-blocking materials filled in gaps among different light-emitting assemblies; and S3, arranging a packaging material layer on the upper sides of the optical material layer and the light blocking grating. According to the COB display module and the manufacturing method thereof, the problem that light emitted by the light-emitting chips of the light-emitting assemblies enters ...

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Номер записи: 1
07-07-2023 дата публикации

Equipment state detection device

Номер: CN116404733A
Автор: WANG JIANGUO, GONG WEN
Принадлежит:

The invention provides an equipment state detection device. The equipment state detection device comprises a signal acquisition unit, an energy collection unit and an energy storage unit which are connected in sequence, the energy collection unit comprises a thermoelectric power generation module, the thermoelectric power generation module comprises a heat conduction base, a thermoelectric power generation cell and a radiator, the cold end and the hot end of the thermoelectric power generation cell are connected with the radiator and the heat conduction base respectively, and the heat conduction base is connected to a heating source; the signal acquisition unit is embedded in the heat conduction base. By arranging the temperature difference power generation module, heat energy can be collected and converted into electric energy, so that self power supply of the device is achieved, frequent battery replacement in the using process of the device is avoided, and the later maintenance cost ...

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Номер записи: 2
08-08-2023 дата публикации

Lead-free piezoelectric ceramic slurry for DLP photocuring 3D printing and preparation method of lead-free piezoelectric ceramic slurry

Номер: CN116553926A
Автор: GONG WEN, WANG KE, WU CHAOFENG, DOU ZHONGSHANG, YAO FANGZHOU, JU MIN
Принадлежит:

The invention relates to the field of 3D printing materials, and discloses DLP photocuring 3D printing lead-free piezoelectric ceramic slurry and a preparation method thereof.The DLP photocuring 3D printing lead-free piezoelectric ceramic slurry is prepared from coupling agent modified potassium sodium niobate powder, free radical type photosensitive resin, a diluent, a free radical type initiator, a dispersing agent, an anti-settling agent, a defoaming agent, an adhesion promoter and a toner; the free radical type photosensitive resin comprises aliphatic polyurethane acrylate with two degrees of functionality, aliphatic polyurethane acrylate with three degrees of functionality and aliphatic polyurethane acrylate with six degrees of functionality. The specific free radical type photosensitive resin is selected to be combined with the diluent, so that the slurry is high in volume solids, low in viscosity, good in fluidity and high in curing reaction speed, and the rapid printing requirement ...

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Номер записи: 3
11-07-2023 дата публикации

Single-chip-driven ultrasonic toothbrush head

Номер: CN116407313A
Автор: GONG WEN, WU CHAOFENG
Принадлежит:

The invention provides a single-piece-driven ultrasonic toothbrush head. The single-piece-driven ultrasonic toothbrush head structurally comprises a brush head frame, a piezoelectric piece, a first metal electrode, a second metal electrode, a first welding spot, a second welding spot, a bristle base, a bristle bundle, a connector, a first wire and a second wire. The ultrasonic element is made of a healthy and environment-friendly lead-free piezoelectric material, the problem of lead poisoning existing in a traditional lead-containing product is eradicated, meanwhile, the bristle base is directly driven by the single piezoelectric plate to conduct high-frequency bending and stretching vibration, the ultrasonic energy conversion efficiency is remarkably improved, and the tooth cleaning effect is improved.

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Номер записи: 4
21-04-2016 дата публикации

METHOD FOR DESIGNING MOISTURE-PROOF STRUCTURE OF LED SMD HOLDER

Номер: WO2016058370A1
Автор: GONG, Wen, SHAO, Pengrui, ZHOU, Jiaomin
Принадлежит:

A method for designing a moisture-proof structure of an LED SMD holder. The moisture-proof structure comprises: a metal holder (1); a reflector cup (2) covering the metal holder; bonding wires (3); LED chips (4) fixed to the metal holder; plastic (5); and a packaging adhesive used for sealing and protecting the LED chips. The metal holder comprises metal leads (11) embedded in the reflector cup and metal pins (12) exposed out of the reflector cup and used as positive and negative electrodes of the metal holder. Area minimization of the metal leads and maximization of bonding of the plastic and the packaging adhesive are guaranteed on the premise of reserving necessary setting areas for the LED chips and welding areas for the bonding wires. The design of the metal leads of the conventional LED holder is changed, the area of the metal leads is reduced to expand the bonding area of the reflector cup and the packaging adhesive, and further the bonding force of the reflector cup and the packaging ...

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Номер записи: 5
02-05-2023 дата публикации

Preparation method of Mini LED backlight lamp bead and backlight module, backlight lamp bead and backlight module

Номер: CN116053367A
Автор: GONG WEN, QIAN YICHANG
Принадлежит:

The invention relates to a preparation method of a Mini LED backlight lamp bead and a backlight module, the backlight lamp bead and the backlight module, and the method comprises the following steps: obtaining a substrate, dividing the substrate into a plurality of lamp bead preparation areas, attaching a plurality of light-emitting units arranged in an array to the lamp bead preparation areas, each light-emitting unit comprising a plurality of LED chips, the electrodes of the LED chips in one or more light-emitting units share a bonding pad; packaging the LED chip by using a colloid to obtain an LED/colloid composite board; cutting the LED/colloid composite board according to the division of the lamp bead preparation area to obtain a plurality of backlight lamp beads; the backlight lamp beads are lighted and screened, and qualified lamp beads are obtained; and the qualified lamp beads are attached to the PCB back plate, shading treatment is carried out, and the backlight module is obtained ...

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Номер записи: 6
22-08-2023 дата публикации

Method for double-current system electric locomotive to pass through articulated neutral section

Номер: CN116620119A
Автор: ZHANG LEI, BAI GUOYAN, ZENG ZHONGLIANG, CHEN LIN, XU ZHANTONG, LIU JIALIANG, ZHAO SHUIDONG, YUE JINGJING, GONG WEN
Принадлежит:

The invention discloses a method for a double-current system electric locomotive to pass through an articulated neutral section. The method comprises the steps that beacon positions composed of a beacon 1, a beacon 2, a beacon 3, a beacon 4 and a beacon 5 are included, and the articulated neutral section and the beacons are matched with the double-current system electric locomotive to pass through the articulated neutral section; the joint type neutral section is an eight-span anchor section joint type neutral section, and the joint type neutral section is located between the beacon 4 and the beacon 5 and does not comprise the beacon 4 and the beacon 5. The method has the advantages that the double-current system electric locomotive can be matched with the ground beacon to automatically switch the power supply system and pass through the neutral section without lowering the pantograph, the actual requirement of the double-current system electric locomotive on passing through the neutral ...

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Номер записи: 7
09-06-2016 дата публикации

NOVEL LED SUPPORT STRUCTURE

Номер: WO2016086604A1
Автор: GONG, Wen, SHAO, Pengrui, ZHOU, Jiaomin
Принадлежит:

Disclosed is an LED support structure. The LED support structure comprises a metal support terminal (1), an LED chip (2) fixed on the metal support terminal (1), a bonding line (3) used for connecting the surface of the metal support terminal (1) and the LED chip (2), and packaging adhesive (4) used for protecting the LED chip (2). The LED support structure is characterized by further comprising a plastic material (5) covered on the surface of the metal support terminal (1), and a plastic reflecting cup (6) wrapped on the metal support terminal (1). The metal support terminal (1) comprises metal pins (11) embedded in the plastic reflecting cup (6) and metal pins (12) arranged on the outer side of the plastic reflecting cup (6). Each metal pin (11) is provided with a functional area and a non-functional area. The bonding area between the plastic material and the packaging adhesive is increased, so the air-tightness of an LED structure is improved; and the plastic material covers the gaps ...

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Номер записи: 8
16-05-2023 дата публикации

Mini LED lamp bead of PCB type substrate and display structure

Номер: CN116133235A
Автор: GONG WEN, QIAN YICHANG
Принадлежит:

The invention relates to a Mini LED lamp bead of a PCB type substrate and a display structure, the Mini LED lamp bead comprises the PCB type substrate and a light-emitting chip set, the second end face of the PCB type substrate is square, four electrodes are respectively located on four edges of the second end face, each electrode is located between the end point and the middle point of the edge of the second end face, and the light-emitting chip set is located between the end point and the middle point of the edge of the second end face. The two electrodes on any two adjacent edges are symmetrically arranged around the center of the second end face in a 90-degree rotation mode, the signal line of the R anode, the signal line of the G anode and the signal line of the B anode are located on the first signal layer, and the signal line of the common cathode is located on the second signal layer. The four electrodes are rearranged on the second end face of the PCB type substrate, packaging ...

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Номер записи: 9
24-03-2016 дата публикации

FULL COLOR METHOD OF NOVEL SUBSTRATE PACKAGING LIGHT-EMITTING DIODE (LED)

Номер: WO2016041366A1
Автор: GONG, Wen, SHAO, Pengrui, ZHOU, Jiaomin
Принадлежит:

A full color method of a substrate packaging LED comprises: a substrate (1); a circuit (2) arranged on the substrate, the circuit comprising a front face circuit (21) arranged on the front face of the substrate and a back face circuit (22) arranged on the back face of the substrate; a conductive hole (3) arranged in the substrate for connecting the front face circuit and the back face circuit, and the conductive hole extending from the front face circuit to the back face circuit, and filled, sealed and packed by conductive metal materials; LED light emitting chips (4) arranged on the front face circuit; packaging glue (5) for packaging the LED light emitting chips; the full color method of a substrate packaging LED includes: a. cleaning the substrate; b. unfreezing die bonding primer; c. uniformly expanding the distances among the LED light emitting chips, attaching the LED light emitting chips to the substrate through a die bonder and die bonding primer; d. connecting the LED light emitting ...

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Номер записи: 10
01-08-2023 дата публикации

Potassium-sodium niobate-based lead-free piezoelectric ceramic powder and preparation method of lead-free piezoelectric ceramic

Номер: CN116514546A
Автор: GONG WEN, WANG KE, WU CHAOFENG, YAO FANGZHOU, SHEN BINGLIN, JU MIN
Принадлежит:

The invention relates to the technical field of piezoelectric ceramics, and discloses potassium-sodium niobate-based lead-free piezoelectric ceramic powder and a preparation method of lead-free piezoelectric ceramics. The preparation method of the piezoelectric ceramic powder comprises the following steps: preparing a clear and transparent solution I from alcohol-soluble potassium salt, alcohol-soluble sodium salt and a polar organic solvent; niobium salt and citric acid are dissolved in a solvent, the pH is adjusted to be not higher than 5, and a clear and transparent solution II is prepared; the molar ratio of niobium element to citric acid in the niobium salt is 1: (3-4); mixing the clarified and transparent solution I and the clarified and transparent solution II to prepare a clarified and transparent precursor solution, atomizing, controlling the flow ratio of atomized gas to the precursor solution to be (1.2-1.3) L/min: 1mL/min, generating ceramic powder in a flame field at the temperature ...

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Номер записи: 11
11-07-2023 дата публикации

Freely-assembled diversified electric automobile

Номер: CN116409423A
Автор: JIANG JIANYING, GONG WEN
Принадлежит:

The invention discloses a single-wheel, double-wheel and four-wheel freely-assembled electric automobile module which is suitable for different driving scenes and provides different driving modes. The single-wheel electric vehicle comprises a vehicle body, a damping device, a main control system, a battery module, a seat, a self-balancing assembly, a power wheel, two auxiliary wheels, a connecting rod and a hook assembly. The vehicle body comprises an exoskeleton type cage type supporting integral type vehicle frame and an open type cabin cover. Connecting rods are arranged on the side face and the top of the vehicle body and can be rigidly connected and combined with another one-wheel electric vehicle to form a two-wheel electric vehicle. A hook is arranged behind the vehicle body and can be connected with a hook in front of the trailer to form a four-wheel electric vehicle. The single-wheel electric vehicle is small in size, small in occupied road area, small in parking occupied area ...

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Номер записи: 12
11-04-2023 дата публикации

Aircraft sandwich foam composite material processing and positioning method

Номер: CN115946059A
Автор: HOU FULI, GUO PENGLIANG, PAN YUNHUI, LIU SHICHAO, LIU JUNWEN, WANG HAI, LUO JUN, FANG LUPING, WAN JIANPING, WANG MINGYU, LIU YING, LI YUE, XIE JIJIAN, XIA LI, YIN PING, XIN HONGNAN, GONG WEN, BYUN HYUN-GEUN, XIONG LIMING, HUANG LAHUA, ZHOU HAONAN, XIANG FEIHONG
Принадлежит:

The invention belongs to the technical field of tool auxiliary equipment, and relates to a machining and positioning method for an aircraft sandwich foam composite material. The method comprises the following steps: pasting a double faced adhesive tape on the surface of a part processing tool; according to the machining allowance of the part, a millesimal piece with the thickness equal to that of the machining allowance is placed between the angle-form positioning block and the tool outline, the angle-form positioning block is pushed tightly in the direction of the tool outline, and it is guaranteed that the gap between the angle-form positioning block and the tool outline is equal to the thickness of the millesimal piece; the thousand pieces at all positions are removed, and the bolts are tightened; the foam sandwich composite material part is bonded to the surface of the tool, and due to limiting of the positioning device, the device can accurately guarantee the positioning precision ...

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Номер записи: 13
14-07-2023 дата публикации

Preparation method of high-purity antimony trioxide

Номер: CN116425196A
Автор: GONG WEN
Принадлежит:

The invention relates to the field of inorganic materials, in particular to a preparation method of high-purity antimony trioxide, which comprises the following steps: oxidizing high-antimony lead anode slime, heating at a certain vacuum degree, collecting condensed volatile matters to obtain an antimony trioxide crude product, mixing the antimony trioxide crude product with ethylene glycol, stirring, heating, reacting, carrying out reduced pressure distillation, carrying out hot filtration on the residual reaction liquid, cooling and crystallizing to obtain the antimony trioxide. The preparation method comprises the following steps: performing suction filtration, washing crystals with ethanol, drying to obtain ethylene glycol antimony, adding the ethylene glycol antimony into the ethanol, performing ultrasonic dispersion, dropwise adding an acid solution into the dispersion liquid, performing water bath reaction on the obtained mixed solution for 40-80 minutes, standing at room temperature ...

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Номер записи: 14
01-08-2023 дата публикации

Preparation method of silver powder

Номер: CN116511521A
Автор: GONG WEN
Принадлежит:

The invention relates to the technical field of metal powder production, in particular to a preparation method of silver powder, which comprises the following steps: respectively preparing a solution A containing silver nitrate and a starch-based chelating agent and a solution B containing a reducing agent and a dispersing agent, adding the solution B into the solution A under the condition of heating and stirring, adjusting the pH value of the mixed system to 1-3 by using a pH regulator, and reacting to obtain the silver powder. The preparation method comprises the following steps: adding a solvent into a reaction kettle, carrying out a reaction, filtering after the reaction is finished, washing the obtained solid with water and ethanol, adding the washed solid into the solvent, heating, stirring, filtering, washing the obtained particles with ethanol, and drying to obtain the silver powder, the particle size distribution of the prepared silver powder is within a narrow range of 20-50nm ...

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Номер записи: 15
05-05-2023 дата публикации

Control mechanism capable of sensing load state of crane and control method

Номер: CN116062623A
Автор: GONG WEN
Принадлежит:

The invention provides a control mechanism capable of sensing the load state of a crane and a control method. The control mechanism comprises a master controller, a hoisting motor, a first controller and two first motors, the two first motors are both electrically connected with the first controller, and a current detection sensor is installed on the lifting motor and electrically connected with the first controller. Shell bodies are symmetrically and fixedly installed on the two sides of a control handle of the master controller, and threaded rods which are perpendicular to the control handle and driven by a first motor are rotationally installed on the two shell bodies. The two threaded rods are rotationally connected, the connecting position of the two threaded rods penetrates through the control handle, each threaded rod is provided with a baffle matched with the threaded rod, and springs are arranged between the baffles on the threaded rods and the control handle in a sleeved mode.

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Номер записи: 16
22-08-2023 дата публикации

Method for double-current system electric locomotive to pass through device type neutral section

Номер: CN116620118A
Автор: BAI GUOYAN, ZHANG LEI, CHEN LIN, ZENG ZHONGLIANG, XU ZHANTONG, YUE JINGJING, GONG WEN, LIU JIALIANG, ZHAO SHUIDONG
Принадлежит:

The invention discloses a method for a double-current system electric locomotive to pass through a device-type neutral section, which comprises a beacon position consisting of a beacon 1, a beacon 2, a beacon 3, a beacon 4 and a beacon 5, and the device-type neutral section and the beacons are matched with the double-current system electric locomotive to pass through the neutral section. And the main circuit breaker of the double-current system electric locomotive is switched off, the train starts to slide forwards by means of inertia until the head of the double-current system electric locomotive reaches the position of the beacon 5, the main circuit breaker of the double-current system electric locomotive is switched on, and the train returns to normal operation. The method has the advantages that the double-current system electric locomotive can be matched with the ground beacon to automatically switch the power supply system and pass through the neutral section without lowering the ...

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Номер записи: 17
28-04-2023 дата публикации

Novel multi-actuator pump control variable pressure difference speed regulation system

Номер: CN116025598A
Автор: CHEN QIHUAI, GUO WENHAI, MIAO CHENG, LIN TIANLIANG, LEE JONG SHIN, FU SHENGJIE, REN HAOLING, GUO TONG, DUAN CHUANGCHUANG, FANG YANFEI, GONG WEN, YE YUEYING
Принадлежит:

The invention provides a novel multi-actuator pump-control variable-pressure-difference speed regulation system which comprises the steps that the movement working conditions and the load size of a first actuator and a second actuator are obtained correspondingly, and according to the oil port pressure, obtained by a pressure sensor assembly, of a first pump-control variable-pressure-difference speed regulation valve assembly and a second pump-control variable-pressure-difference speed regulation valve assembly, determining the working conditions of hydraulic pump motors and motor generators of the first and second pump control variable pressure difference speed regulating valve assemblies; and after the working condition is determined, according to the oil port pressure obtained by the pressure sensor assembly, the torque of the motor generators of the first and second pump-controlled variable-pressure-difference speed regulating valves and the oil inlet and outlet pressure difference ...

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Номер записи: 18
27-06-2023 дата публикации

Longitudinal wave ultrasonic transducer for ultrasonic toothbrush head

Номер: CN116329062A
Автор: GONG WEN, WU CHAOFENG
Принадлежит:

The invention provides a longitudinal wave ultrasonic transducer for an ultrasonic toothbrush head. The longitudinal wave ultrasonic transducer comprises a piezoelectric ceramic array, a first metal electrode, a second metal electrode, a matching layer, a reflecting layer, an FPC layer, a first conductive adhesive layer and a second conductive adhesive layer. According to the invention, a new generation of lead-free piezoelectric ceramic is used as a core material to manufacture the transducer, so that the product is nontoxic and harmless to a human body; meanwhile, a piezoelectric array is constructed in a two-dimensional array mode, the vibration mode of the transducer is optimized, ultrasonic longitudinal wave one-way emission is achieved, and the tooth cleaning efficiency is remarkably improved.

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Номер записи: 19
25-08-2023 дата публикации

Equipment control method and device and storage medium

Номер: CN116643532A
Автор: GONG WEN
Принадлежит:

The embodiment of the invention provides an equipment control method and device and a storage medium. The method comprises the steps that the number of externally input PLCs, the number of to-be-controlled equipment and the average running time proportion of the to-be-controlled equipment are received; according to the number of the PLCs, the number of the to-be-controlled equipment and the average operation time proportion, determining a waiting time expected value of the to-be-controlled equipment; and matching a corresponding number of PLCs according to the expected value. The technical scheme provided by the invention is used for solving the problems of low efficiency, high cost and energy waste caused by low utilization rate of the PLC in the prior art.

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Номер записи: 20
23-06-2023 дата публикации

Preparation method of hollow antimony trioxide

Номер: CN116282150A
Автор: GONG WEN
Принадлежит:

The invention relates to the field of inorganic material science, in particular to a preparation method of hollow antimony trioxide, which comprises the following steps: dissolving poloxamer in water to obtain a solution A, adding long-chain alkylamine into the solution A, stirring for a period of time, adding concentrated sulfuric acid, continuously stirring and standing to obtain a solution B, dissolving furfural in toluene to obtain a solution C, and reacting for 1-2 hours to obtain hollow antimony trioxide; and adding the solution C into the solution B for interface reaction, separating a water phase after the reaction is finished, dissolving ethylene glycol antimony and a soft template agent into ethanol to obtain a solution D, adding the obtained solution D into the water phase, fully reacting, centrifuging, washing the obtained precipitate, drying, and finally calcining in a protective gas atmosphere. And a battery assembled by an electrode prepared by using the composite material ...

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Номер записи: 21
12-05-2023 дата публикации

CHIP series LED packaging method, CHIP series LED packaging structure and LED screen

Номер: CN116110898A
Автор: GONG WEN, HUANG JIAN
Принадлежит:

The invention discloses a CHIP series LED packaging method, a CHIP series LED packaging structure and an LED screen. According to the LED packaging method provided by the invention, a CHIP series packaging mode is adopted, and in the packaging process, the reflection cup is directly manufactured on the substrate in a mold pressing injection molding mode, so that the problem that the reflection cup and the substrate need to be bonded through an adhesive, and consequently the adhesive overflows is solved. The CHIP series LED structure which originally emits light from five surfaces is made into the cup-shaped structure similar to the TOP series, so that only the top opening of the cup-shaped structure emits light, and the light emitting brightness is greatly improved; and meanwhile, the problem that the size of a single lamp bead is too large due to the influence of the bracket when the TOP series LED structure is manufactured, so that the picture displayed on an LED screen is not fine enough ...

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Номер записи: 22
16-06-2023 дата публикации

Human-friendly ultrasonic toothbrush head

Номер: CN116262075A
Автор: GONG WEN, WU CHAOFENG
Принадлежит:

The invention provides a human-friendly ultrasonic toothbrush head. The human-friendly ultrasonic toothbrush head comprises a brush head base, an ultrasonic transducer, a first cavity, a first matching layer, a bristle bundle, a second cavity, a connecting rod, a connector, a first wire and a second wire. The lead-free piezoelectric ceramic is used as a raw material to manufacture the core ultrasonic transducer, and the core ultrasonic transducer is healthy, environmentally friendly, non-toxic and pollution-free; meanwhile, a separated array structure is adopted, the ultrasonic energy conversion efficiency is effectively improved, and the ultrasonic tooth cleaning effect is enhanced.

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Номер записи: 23
30-05-2023 дата публикации

Desulfurization comprehensive treatment system for antimony ingot production

Номер: CN116173697A
Автор: GONG WEN
Принадлежит:

The invention relates to the technical field of gas purification, in particular to an antimony ingot production desulfurization comprehensive treatment system which comprises a cyclone separator, an electrostatic dust collector, a spray tower, a desulfurization tower and a fan which are sequentially communicated through pipelines, the desulfurization tower is filled with a desulfurization agent, and the desulfurization agent is prepared from modified kaolin, red mud, Na2CO3, CaSO4, CuO, ZnO, a pore-enlarging agent and water. The desulfurization comprehensive treatment system provided by the invention has a good purification effect on sulfur-containing waste gas generated in the antimony ingot production process, and especially, the removal rate of sulfur dioxide gas can reach 100%.

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Номер записи: 24
26-05-2023 дата публикации

Potassium sodium niobate/zirconium oxide composite ceramic as well as preparation method and application thereof

Номер: CN116161956A
Автор: HAN BING, YAO FANGZHOU, GONG WEN, WANG KE, ZHANG YUNFAN
Принадлежит:

The invention belongs to the technical field of functional ceramic materials, and relates to potassium sodium niobate/zirconium oxide composite ceramic as well as a preparation method and application thereof. The potassium sodium niobate/zirconium oxide composite ceramic has the following chemical general formula: (Na < 0.5 > K < 0.5 > NbO3) x (Y < 0.06 > Zr < 0.94 > O < 1.97 >) (1-x), wherein x is more than or equal to 0.04 and less than or equal to 0.12. The KNN/3Y-TZP composite ceramic disclosed by the invention has the advantages of fine crystal grains, good toughness and excellent piezoelectric property, can be applied to oral implants, stimulates bone growth by virtue of the piezoelectric property while obtaining the toughness, and has an effect of repairing affected parts.

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Номер записи: 25
23-05-2023 дата публикации

Control method, device and equipment of three-rope parallel robot and storage medium

Номер: CN116141319A
Автор: REN HAOLING, LI QIANQIAN, LIN TIANLIANG, LEE JONG SHIN, MIAO CHENG, CHEN QIHUAI, GONG WEN
Принадлежит:

The embodiment of the invention provides a control method, device and equipment of a three-rope parallel robot and a storage medium, and relates to the technical field of parallel robots. The control method comprises the steps from S1 to S8. S1, acquiring an expected track sent by an upper computer; and S2, according to the expected track, the expected position of the end effector and the expected torque of the driving motor are obtained. And S3, controlling the motor to operate according to the expected torque of the driving motor. And S4, obtaining the actual torque and the actual rotating speed of the driving motor output by the motor encoder. And S5, performing proportional-integral closed-loop compensation control on the driving motor according to the actual torque and the expected torque of the driving motor. S6, integration is carried out according to the actual rotating speed of the driving motor, and the theoretical rope length is obtained. And S7, according to the theoretical ...

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Номер записи: 26
16-05-2023 дата публикации

System and method for preventing blade water erosion of low-pressure cylinder of steam turbine

Номер: CN116122922A
Автор: SHAN PENG, YANG YANG, ZHANG YA, ZHANG JIAMIN, DU HEFENG, YAN SEN, ZHAO HAIYANG, GONG WEN
Принадлежит:

The invention relates to the technical field of turbines, in particular to a turbine low-pressure cylinder blade water erosion prevention system. Comprising a controller, an ultrasonic sensor, a temperature detector, a first nozzle group, a second nozzle group, a first water spraying pipeline and a second water spraying pipeline, wherein the ultrasonic sensor is used for monitoring the particle size and concentration of liquid drops on the steam exhaust side of a low-pressure cylinder; the temperature detector is used for monitoring the steam exhaust temperature of the low-pressure cylinder; the first nozzle group and the second nozzle group are respectively provided with a plurality of nozzles arranged on the steam exhaust side of the low-pressure cylinder; the number of nozzles of the second nozzle set is larger than that of nozzles of the first nozzle set, a first adjusting valve and a second adjusting valve are arranged on the first water spraying pipeline and the second water spraying ...

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Номер записи: 27
27-06-2023 дата публикации

Flow chart analysis method

Номер: CN116339716A
Автор: JI GUANGLEI, NING WEIYU, GONG WEN, HUANG MENGYANG, YU ZHIYUAN, WANG MANLIN, HAO ZHIFENG, XIE ZHANPENG
Принадлежит:

The invention discloses an analysis method of a flow chart. The analysis method comprises the following steps: step 1, preprocessing the flow chart; step 2, flow node dependency analysis; and step 3, dynamically refreshing the process. By means of the method and device, static flow chart analysis and running end dynamic refreshing can be combined, and the efficiency and accuracy of flow parallel execution are guaranteed. Development and iteration of data processing services are effectively supported through a parallel process technology. And meanwhile, human resources for manually maintaining the dependency relationship are thoroughly released by utilizing an automatic pre-compiling mode.

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Номер записи: 28