Light-intensity adjusting device for photoetching exposure and light-intensity adjusting method

The invention provides a light-intensity adjusting device for photoetching exposure. The light-intensity adjusting device comprises a mercury-lamp light source, a movable reflecting mirror group, an energy sensor and a controller, wherein the mercury-lamp light source is positioned in a lamp room, and is used for providing a light source body for a photoetching device; the movable reflecting mirror group is positioned at a light outlet of the lamp room, comprises at least one movable lens and is used for collecting scattered beams of the light source; the energy sensor is used for measuring the light power of the surface of a substrate; the controller is used for signal detection, operation and command sending, and is connected with the mercury-lamp light source, the movable reflecting mirror group and the energy sensor; the scattered beams sent by the mercury-lamp light source enter a following light path by the movable reflecting mirror group.

Taiko wafer centering determination method and Taiko wafer cutting method

The invention discloses a Taiko wafer centering determination method and a Taiko wafer cutting method, and the Taiko wafer centering determination method comprises the steps: determining that an abnormal hole site exists in a process of judging whether a Taiko wafer is centered or not through a four-hole centering method; if yes, finding a predetermined number of point positions of parts outside the four through holes on the normal edge of the wafer main body through image recognition, and determining corresponding second edge coordinates; the normal edge of the wafer main body is not recognized in the images collected at the abnormal hole positions; the preset number is consistent with the number of the abnormal hole sites, and whether the Taiko wafer is centered or not is determined according to the second edge coordinates and the first edge coordinates. According to the method, when the abnormity is identified, the part outside the four through holes on the normal edge of the wafer main ...

Anti-head-smut corn auxiliary breeding method

The invention provides an anti-head-smut corn auxiliary breeding method, which mainly adopts a seedling culture disc for seedling inoculation. The infection of head smut germs on plants is promoted through three measures of transplanting young seedlings, watering little water on survival plants and manually inhabiting the growth of the plants, and the disease incidence is improved for assisting the anti-head-smut plant breeding. When the method of the invention is adopted, the seedling culture disc is adopted for seedling culture in the early breeding period, and the culture conditions are manually controlled, so the infection chances of head smut germs on the seed and the seed infection degrees are identical, and at the same time, the outbreak of the disease is promoted through transplanting and breaking the normal growing conditions by drying treatment after the plants are survived, so the disease outbreak rate of the plants is improved by 30 to 50 percent, and the disease resistance ...

Multi-disc umbrella-shaped spiral anchor foundation suitable for soft and hard complex stratums

The invention discloses a multi-disc umbrella-shaped spiral anchor foundation suitable for soft and hard complex stratum.The multi-disc umbrella-shaped spiral anchor foundation suitable for the soft and hard complex stratum.The multi-disc umbrella-shaped spiral anchor foundation suitable for the soft and hard complex stratum.The multi-disc umbrella-shaped spiral anchor foundation suitable for the soft and hard complex stratumcomprises an anchor rod, a spiral mechanism is arranged below the anchor rod, and an umbrella-shaped spiral anchor is installed below the spiral mechanism; an umbrella-shaped spiral anchor with a drill is also mounted below the spiral mechanism; the screw mechanism comprises a first outer screw mounted below the anchor rod, and a first inner screw mounted in the first outer screw; the first outer screw and the first inner screw are arranged below the anchor rod, the anchor rod can be connected with the drilling anchor head or the anchor tip or the anchor head through ...

Multichannel serial communications system and control method thereof

The invention provides a multi-channel serial port communication system and a control method thereof. The multi-channel serial port communication system comprises a control register, a main controller and a plurality of serial port receiving modules, wherein the control register is used for setting the parameter of a plurality of serial port receiving modules. The main controller is coupled with the control register and used for controlling the plurality of serial port receiving modules so as to send and receive serial data. The serial port receiving modules are respectively coupled with the main controller. The application of the multi-channel serial port communication system and the control method can carry out configuration to the serial port baud rate, stop bit and data frame stop mark through controlling the control register, and also can carry out configuration to the property of the serial port flexibly through adapting to chips and expand the number of channels according to the ...

Information and position management device and method for power equipment

The invention relates to an information and position management device for power equipment, which is characterized in that an integrated circuit board is arranged in a shell, a single chip microcomputer, a power supply module, a built-in antenna, a Bluetooth and infrared module, a wireless communication module, a battery compartment and a positioning module are fixedly arranged on the integrated circuit board, and a display screen, keys and a solar cell panel are arranged on the shell. The device is used for information and position management work of power equipment. Meanwhile, the invention further relates to an information and position management method of the power equipment, a supplier fixes the device on the power equipment to be delivered, the device is started, equipment information and technical parameters are input through a mobile device or a key of the device, the device uploads position information and input information to a material system through a wireless network, and the ...

Charging and discharging active equalization circuit for lithium ion power battery pack

The invention provides a charging and discharging active equalization circuit for a lithium ion power battery pack. A voltage acquisition module and a voltage equalization circuit are arranged for each battery package of the power battery pack. The voltage of each battery individual is acquired in real time through the corresponding voltage acquisition module and sent to a battery management system. When the voltage of each battery individual or each battery package or the power battery pack exceeds a set upper limit and a set lower limit, voltage equalization is conducted; each voltage equalization circuit comprises a transformer and equalization switch MOS transistors. Each battery individual in power packages, each battery package in the power battery pack and the whole power battery pack are respectively connected to a winding of the same-core transformer through the corresponding two equalization switch MOS transistors. The equalization switch MOS transistors are controlled to be switched ...

Fast forwarding service end-to-end time delay prediction method

The invention discloses a method for predicting expedited forwarding (EF) service end-to-end delay. The method obtains an EF data stream end-to-end delay upper bound expression, which is more accurate than that obtained in any prior research results, by using deterministic network calculus theory and is an important reference for the quality of service (QoS) control of an actual multimedia network. On this basis, the invention, from the statistical characteristic of the EF data stream, discovers that the birth-death model can be used for modeling EF data stream at network nodes, and finally creatively obtains a probability distribution expression of the EF data stream end-to-end delay upper boundary which can describe the delay upper boundary under different network conditions, while the prior expression can only describe the end-to-end delay under the poorest network conditions. In contrast, the probability distribution of the delay upper boundary can more accurately describe the delay ...

Detergent dissolving device and washing machine who has it

The utility model discloses a detergent dissolving device and washing machine who has it, detergent dissolving device includes the detergent box, with set up the box that dissolves in the detergent box, it is equipped with and dissolves the chamber to dissolve the box, be equipped with the water inlet on the detergent box, the delivery port, a circulation runner for inciting somebody to action the runner that erodees that flows in the water flow guide delivery port of water inlet dissolves the box below with being used for with the water flow guide who flows in the water inlet, the circulatory flow way have with the loop exit that washes away runner intercommunication and with the return water mouth that dissolves the chamber intercommunication, it includes to dissolve the box: water jet, water jet communicate the water inlet on the detergent box and dissolve the chamber, gush the mouth of a river, gush the mouth of a river and set up on the diapire that dissolves the box and feed through ...

A support for spraying washing machine drawer

The utility model discloses a support for spraying washing machine drawer, include: a panel, the panel is dull and stereotyped shape, a side surface of panel forms spraying face, just the interval arrangement has and a plurality ofly link up on the panel the panel is used for placing washing machine drawer's through -hole, the protection film, the protection film separable attached to the panel on the surface, just the protection film covers at least the panel spraying face. According to the utility model discloses a support for spraying washing machine drawer has improved washing machine drawer's spraying efficiency, and the drawer of homogeneous spraying moreover has higher uniformity.

Intelligent rod planning method, intelligent rod planning system, equipment and storage medium

The embodiment of the invention provides an intelligent rod planning method, an intelligent rod planning system, equipment and a storage medium, and belongs to the technical field of intelligent rod planning. The method comprises the following steps: obtaining to-be-loaded function point data, an initial intelligent rod and initial function point data of a target planning area; carrying out point location merging on the function point location data to be loaded on the pole and the initial function point location data to obtain initial planning point location data, wherein the initial planning point location data comprises pole combination priority data; planning point location screening is carried out according to the rod combination priority data to obtain planning point location data and a point location rod combination state; performing first state judgment on the rod planning state of the candidate intelligent rod, and performing rod combination processing on the planning point location ...

Double-axis tracking single-layer substrate integrated waveguide monopulse slot antenna and radiation method thereof

The invention discloses a double-axis tracking single-layer substrate integrated waveguide monopulse slot antenna and a radiation method thereof, the antenna sequentially comprises a first metal layer, a dielectric substrate and a second metal layer from top to bottom, the first top metal layer is provided with 4N radiation slots, a sum port, a first difference port, a second difference port and a third difference port, the dielectric substrate is provided with a substrate integrated waveguide cavity, and the second metal layer is provided with a third difference port. The second metal layer comprises four 2N-path power dividers, four dual-mode comparators and waveguide channels, and the second metal layer is a metal ground; and the excitation sum port, the first difference port, the second difference port and the third difference port respectively form a sum beam, a difference beam on the xoz surface, a difference beam on the yoz surface and a double-difference beam. According to the monopulse ...

Quinoline and derivative selective hydrogenation catalyst, preparation method and application

The invention discloses a selective hydrogenation catalyst for quinoline and derivatives thereof as well as a preparation method and application of the selective hydrogenation catalyst. The catalyst is large in specific surface area, small in copper nanoparticle particle size and high in active component dispersity, the interaction between the metal active component and the carrier is enhanced due to the formation of silicate, the selective hydrogenation activity of quinoline is effectively improved due to the synergistic effect of Cu < + > and Cu0 in the catalyst, the copper catalyst is used for hydrogenation reaction of C = N bonds, the polarizability is good, and the selectivity of quinoline is improved. The selectivity is high. 1, 2, 3, 4-tetrahydroquinoline is an important chemical raw material, and when the catalyst is used for preparing 1, 2, 3, 4-tetrahydroquinoline through selective hydrogenation of quinoline, the quinoline conversion rate and py-THQ selectivity respectively reach ...

Thinning machine

The invention relates to the technical field of semiconductor processing equipment, in particular to a thinning machine. The thinning machine comprises a machine base, a wafer bearing table and a grinding mechanism, the machine base is provided with a feeding and discharging station and a machining station, and the wafer bearing table is arranged on the machine base in a sliding mode and reciprocates between the feeding and discharging station and the machining station. The grinding mechanism comprises a driving module, a main shaft and a grinding wheel, the grinding wheel is coaxially arranged on the main shaft, and the diameters of the main shaft and the grinding wheel are adjustable; the driving module is in transmission connection with the grinding wheel through the main shaft so as to drive the grinding wheel to ascend, descend and rotate at the machining station. The circle center of a projection circle of the grinding wheel on the wafer bearing table passes through the moving track ...

Method for integrally forming aluminum alloy equal-diameter three-way member

The invention discloses a method for integrally forming an aluminum alloy equal-diameter three-way member. In the method, the aluminum alloy equal-diameter three-way member is integrally formed by using a three-way die; a multidirectional active loading and forming technology is adopted, the loading and forming process is as follows: a horizontal male die moves first, side male dies move latterlyand three male dies move together to reach a final forming position. By adopting a method that the side male dies move in advance to inhibit metal from violently flowing towards a support tube die cavity, the defects in the prior art are eliminated, the one-time integral forming of the aluminum alloy equal-diameter three-way member is realized and the process flow is simplified. In the method disclosed by the invention, by coordinating the loading sequences of dies in different directions, the metal flowing in the forming process is actively controlled and the defects in causing a cavity and folding ...

An electron beam flux guiding device

The invention is a beam flux of electron beam leading device that refers to irradiation field. The invention includes electron accelerator, vacuum pump and beam flux tube that can be bended and flexed. The feature of the structure is that the indraught window and the extraction window is set at the ends of the beam flux tube to seal off the beam flux tube. The indraught window of the beam tube in connected to the light beam of the electron accelerator, and the extraction window can lay up the tested matter. Coil winding is set on the exotheca of the beam flux tube. And magnet yoke is set on the exotheca of the coil winding. The vacuum pump that can make the beam flux tube vacuum, power supply of the coil and water-cooling system are set at the beginning of the exotheca of the beam flux tube. The invention can change the location and the direction of the electron beam flux conveniently, flexibly and randomly, but need not to change the location of the accelerator or the location and the ...

Suspending rope type casing gas recovery device

A suspending rope type casing gas recovery device comprises a pumping unit base and a frame arranged on the pumping unit base. The frame is connected with a walking beam through a center shaft. The suspending rope type casing gas recovery device is characterized in that pressed steel rope ends are arranged at the two ends of a steel wire rope, one end of the steel wire rope is sleeved with an adjusting rope sleeve, the other end of the steel wire rope is in hinge shaft connection with a hinge seat through a guide wheel, the adjusting rope sleeve is in screwed connection with a balance weight connector, the balance weight connector is in screwed connection with a piston rod arranged on the lower portion, the piston rod is arranged in an air cylinder, a sealing gland penetrates through the piston rod to be in screwed connection with the air cylinder, and an air inlet connecting pipe and an exhaust connecting pipe are arranged on the two sides of the upper portion of the air cylinder. The ...

Air pipe connector, falling-off system and falling-off method

The invention discloses an air pipe connector, a falling-off system and a falling-off method.The air pipe connector comprises a fixing base installed on the ground, a pulling-out base installed on a rocket body, a plurality of input filler necks, a plurality of output filler necks, a ball lock device, a sensor cover plate and a sensor device. The device has the technical effects that the structure is simple, installation is convenient, the separation effect is fed back in time, and separation can be safely, reliably and rapidly achieved without introducing an additional separation control gas circuit.

Sliding sleeve fracturing valve

The utility model discloses a sliding sleeve fracturing valve, the moving -coil microphone comprises an outer cover. The top connection sets up the upper end of overcoat, the lower clutch sets up the lower extreme of overcoat, the sliding sleeve sets up in the overcoat, fix through a fastener in the overcoat, positioning element sets up in the overcoat, and be located the lower part of sliding sleeve, and with the sliding sleeve rigid coupling, injection apparatus sets up on the overcoat, wherein, the upper portion of positioning element's inner wall is provided with wide groove, the lower part of positioning element's inner wall is provided with narrow groove. The utility model provides a pair of sliding sleeve fracturing valve splits the valve through this sliding pressure and just can directly carry out the fracturing operation, can effectively reduce the fracturing operating procedure, shortens the activity duration to improve the work efficiency of fracturing operation.

Sliding sleeve fracturing valve

The utility model discloses a sliding sleeve fracturing valve, the moving -coil microphone comprises an outer cover. The top connection sets up the upper end of overcoat, the lower clutch sets up the lower extreme of overcoat, the center tube sets up in the overcoat, the sliding sleeve sets up in the center tube, and fix through a fastener in the center tube, locking device sets up the lower extreme of sliding sleeve, wherein, be in be provided with first through -hole, second through -hole and third through -hole on the center tube, be provided with on the overcoat fourth through -hole with be provided with the five -way hole on the sliding sleeve, the second through -hole passes through the five -way hole with fourth through -hole intercommunication. The utility model provides a pair of sliding sleeve fracturing valve splits the valve through this sliding pressure and just can directly carry out the fracturing operation, can effectively reduce the fracturing operating procedure, shortens ...

Internal bending formation method of continuous and local uneven loading surface of sheet belt

The invention relates to an internal bending formation method of the continuous and local uneven loading surface of a sheet belt, which is used for carrying out continuous and local wedge-shaped roll formation on a strip-shaped sheet belt (2) by utilizing two symmetrical and opposite-rotation conical rolls (1). The method and comprises the following steps of: preparing materials, setting forming parameters, cutting, forming and finishing. Before formation, the cutting angle of one end of the sheet belt along a width direction is determined according to the size and the forming parameters of the sheet belt, the cutting end of the sheet belt (2) is arranged in a roll gap, and the sheet belt and the conical rolls (1) are in linear contact; . Duringduring formation, one side of the cutting end of the sheet belt (2) is placed in the roll gap, and one end of the sheet belt, having smaller shorter length, is close to one side of a small gap of the roll gap. In the invention, the sheet belt is ...

Safe control system of elevator

The utility model discloses a safe control system of elevator, this safe control system of elevator include dual coder, and dual coder passes through shielded cable and is connected with the safety governor, dual coder is real -time detection hauler running state's driving sheave encoder and real -time detection car running state's overspeed governor encoder, and the safety governor detects the synchronization information of the operation conditions of hauler and car, relatively both operations simultaneously to preserve synchronization information's statistical, with the setting value comparison of safety governor, take corresponding safety measure. The utility model has the advantages that transformer ladder is protected to protecting the trouble and the accident rate of greatly reduced elevator, the security that has improved the elevator according to elevator operation condition dimension from dimension regularly or during the trouble.

Electromagnetic locking and unlocking mechanism and grid wing device

The invention provides an electromagnetic locking and unlocking mechanism and a grid wing device.The electromagnetic locking and unlocking mechanism is installed on the inner wall of a rocket body and comprises a fixing base, a pin puller, a reset device and an electromagnet adsorption device; the fixed seat is fixed on the inner wall of the arrow body; the pin puller is slidably connected to the fixing base, one end of the pin puller is used for being inserted into a grid wing edge fixing plate, and the other end of the pin puller is provided with an electromagnet adsorption device. The grid wing edge fixing plate is fixedly connected to the tail end of the grid wing and penetrates through the side wall of the rocket body; the electromagnet adsorption device is fixed to the fixing base and used for attracting the pin puller and driving the pin puller to move out of the grid wing edge fixing plate. The reset device is arranged on the pin puller in a sleeving mode and used for driving the ...

Wireless energy and data synchronous transmission system and parameter design method thereof

The invention discloses a wireless energy and data synchronous transmission system and a parameter design method thereof, relates to the technical field of wireless power transmission, and solves the technical problem of how to improve the communication performance of the system and simplify the circuit structure at the same time. The data transmission loop comprises a full duplex modem and a data transceiver connected with the full duplex modem, and the data transceiver comprises a primary side data transceiver and a secondary side data transceiver; the primary side data transceiver comprises a first capacitor, a second capacitor and a primary side isolation transformer; according to the system, the communication frequency band is fully expanded by utilizing a simple circuit topology and fewer components, and the communication performance of the system can be remarkably improved by matching with the MSK digital modulation and demodulation technology with high spectrum utilization rate ...

Application of Ni3P/SiO2 catalyst in DBD plasma methane dry reforming

The invention belongs to the technical field of methane dry reforming catalysis, and discloses an application of a Ni3P/SiO2 catalyst in DBD plasma methane dry reforming. Compared with a traditional Ni/SiO2 catalyst, the Ni3P/SiO2 catalyst provided by the invention has remarkable advantages in CH4/CO2 conversion rate, H2/CO product selectivity and catalyst stability in a DBD plasma methane dry reforming reaction. Experimental results show that the Ni3P/SiO2 catalyst can effectively solve the problems of low activity, easy inactivation and the like of the traditional Ni-based catalyst at present, and an efficient catalyst with industrialization potential is provided for DBD plasma concerted catalysis DRM reaction at the present stage.

Driving device and method of universal motor

The invention relates to a driving device and method of a universal motor. The device comprises an input setting unit, a combination mode configuration unit and multiple driving channels in a sequential connection mode. The driving channels are respectively connected to a driving port of the motor. The combination mode configuration unit selects corresponding combination matching modes for driving the driving channels according to parameter selecting and setting of the input setting unit. Related motor driving information is set through the input setting unit, after the combination mode configuration unit receives the information of the input setting unit, modes of all the driving channels are set and the combination matching modes of all the driving channels are selected according to the information, finally, output of each driving channel is driven, and different types of motors are driven through the driving channels different in combination mode. In this way, compatibility of the driving ...

Cooling device of motor and have its washing machine

The utility model discloses a cooling device of motor and have its washing machine. The cooling device of motor includes: the casing with stir the piece, inject the installation cavity in the casing and the cooling channel that is used for cooling off the installation cavity, be suitable for the circulation cooling agent in the cooling channel, the motor at least some be suitable for the setting in the installation cavity. Stirring a movably and establishing stir the cooling agent in order to be suitable for in cooling channel, the drive end stirred stretches out cooling channel and is suitable for and is connected with the motor shaft of motor. According to the utility model discloses a cooling device can accelerate the heat that the cooling agent absorbs the motor, and be favorable to exhaling the heat in the cooling device, greatly alleviates the motor heating problem, prolongs the life of motor.

Roller adjusting mechanism of plate belt surface incurvation forming device and adjusting method thereof

The invention relates to a roller adjusting mechanism of a plate belt surface incurvation forming device and an adjusting method thereof. The roller adjusting mechanism comprises two sets of slide block couplings (2), a wedge angle adjuster (7), a cone roller slide fixed mechanism (8) and a set of clearance adjuster (9), wherein the slide block couplings, the wedge angle adjuster and the cone roller slide fixed mechanism are respectively arranged at both sides of a center line of a machine seat (5) and sequentially installed between a speed reducer and the suspending ends of cone roller shafts. By adjusting a clearance adjusting bolt, the clearance adjuster (9) is not in contact with the two cone roller shafts (4); the extension of the two cone roller shafts (4) is adjusted by slide block coupling joints in the slide block couplings (2); an adjusting bolt (17) in the wedge angle adjuster (7) is adjusted to realize the adjustment of an included angle formed by the two cone roller shafts ...

Exposure control system and control method for photolithography equipment

The invention provides an exposure control system which is used for lithography equipment and a control method thereof; the exposure control system comprises a main control unit, an exposure system control unit which is electrically connected with the main control unit, and a sub-control module which is electrically connected with the exposure system control unit; the exposure system control unitincludes a lighting and projection object lens control panel, and a lighting and sensor board which is electrically connected with the lighting and projection object lens control panel; the lighting and projection object lens control panel receives the instructions issued by the main control unit, the instructions are transmitted to the sub-control module by the lighting and sensor board, and then the action implementing conditions of the sub-control module are fed back to the main control unit by the lighting and sensor board. The control system has compact structure, distinctive nuance, andstrong ...

Method for propagating corn seeds by utilizing cytoplasm-sterile corn hybrid seeds as isolation zone

The invention provides a method for propagating corn seeds by utilizing cytoplasm-sterile corn hybrid seeds as an isolation zone. The cytoplasm-sterile corn hybrid seeds, which are alien with the female parent of the seed production field, of which the mature period is similar to the female parent and the plants are taller than that of the inbred line of the male parent of the seed production field, and which can be pollinated by the inbred line of he male parent, are selected to grow in the isolation area for propagating the corn seeds; because the pollen of the sterile hybrid seeds has highsterility, the plants of the sterile hybrid seeds are tall and the leaves are luxuriant, the introduction of the external core pollen can be more effectively prevented; meanwhile, the inbred line of the male parent, which is same as the male parent of the seed production field is grown in a certain ratio and pollinates the sterile hybrid seeds so as to ensure that the sterile hybrid seeds are fruited ...

High-precision wide-range thermocouple resistance measuring circuit

The invention discloses a high-precision wide-range thermocouple resistance measuring circuit. The circuit comprises a chopping commutation analog switch U1, a low-voltage reference source Vref, a current-limiting resistor R1, a one-out-of-four analog switch U2, a high-precision resistor R2, a high-precision resistor R3, a high-precision resistor R4, a high-precision resistor R5 and a controller. According to the circuit device, the resistance values of the positive and negative phase thermocouples are measured and averaged by the controller, and then the averaged value is subtracted from the self-calibration deviation value, so that the resistance value of the high-precision thermocouple can be obtained.

Log multiple-faced radiation quarantine inspection processing apparatus

The present invention is one multidimensional radiation quarantining treatment equipment for logs in railway carriage, and belongs to the radiation quarantining treatment of agricultural and forestryproducts. The multidimensional radiation quarantining treatment equipment has no pollution to atmosphere and living environment, is not affected by the environment temperature, and has low cost and high quarantining treatment effect. The multidimensional radiation quarantining treatment equipment consists of rails, protecting walls, accelerators, radiation passage and wagon trailer. The protecting walls are outside the rails; the accelerators are arranged homogeneously on two sides of the rails; the rails include one section in level ground and one section in slope; and the wagon trailer consists of trailer wagon and automatically controlled winder; with the trailer wagon reciprocating in the slope.

Pressure testing method and pressure testing system

The embodiment of the invention discloses a pressure test method and a pressure test system. The method comprises the following steps: playing a record in a call room with a preset room identifier through a calling simulation end; sending the call request to a service logic processing module through a flow control module; in response to the received call request, generating a call command through the service logic processing module, and sending the call command to an outbound module in the call center system; calling a called simulation end with a called identifier through an outbound module, so that the called simulation end joins in the call room; replying in the call room through the called analog terminal; and monitoring transmission data on a link among the service logic processing module, the outbound module and the called simulation end so as to carry out a pressure test on the call process. According to the invention, on the premise of not influencing an external system, simulation ...

Shutter device for exposure subsystem of photoetching machine

The technical problem to be solved by the invention is to provide a shutter device for an exposure subsystem of a photoetching machine. The shutter device comprises at least one shutter blade, a shutter controller, a position sensor, a bracket and a voice coil motor, wherein the shutter controller is used for controlling opening and closing of the shutter blade; the positioning sensor is coupled with the shutter controller and the shutter blade and provides movement position information of the shutter blade for the shutter controller; the bracket is positioned below the shutter controller and the position sensor and is used for supporting the voice coil motor and the position sensor; the voice coil motor is controlled by the shutter controller to move; the voice coil motor is positioned on the bracket, is coupled with the shutter controller and is controlled by the shutter controller to move; the voice coil motor drives the shutter blade to move so as to form the operation of opening and ...

Method for preparing Ni3P/SiO2 catalyst through chemical plating and application of Ni3P/SiO2 catalyst in hydrodeoxygenation

The invention provides a method for preparing a Ni3P/SiO2 catalyst through chemical plating and application of the Ni3P/SiO2 catalyst in hydrodeoxygenation, and belongs to the technical field of catalysis. According to the method, the supported nickel phosphide catalyst is prepared through a deposition precipitation-chemical plating method, in the process of preparing a precursor through deposition precipitation of the catalyst, ammonia water is used as a precipitator, the precursor can be prepared at normal temperature, the synthesis process is simple, and the obtained Ni3P/SiO2 catalyst has good hydrodeoxygenation activity on phenol and is high in stability; meanwhile, the plating solution used in the synthesis process of the method can be reused after being supplemented.

Method for determining isothermal local loading process parameters of approximately alpha-typed titanium alloys

The invention provides an experimental method for determining isothermal local loading process parameters of approximately alpha-typed titanium alloys, comprising the following steps: heating titaniumalloy materials at a temperature of 30 DEG C above the phase transformation temperature, repeatedly forging the titanium alloy materials in multiple directions below the phase transformation temperature, completing local loading and forming within 1-2 heat forging, ensuring the heating and forging temperature to be 15-40 DEG C below the phase transformation temperature and the loading speed to be0.4-0.6mm/s, synchronously carrying out whole loading in the last heat times when the local loading deformation is less than the total deformation, stopping carrying out whole loading if the local loading deformation meets the requirement of the total deformation, sampling after heat treatment to carry out test and metallographic analysis, accurately obtaining the quantitative relations between such ...

Exposure control system and control method for photolithography equipment

The invention provides an exposure control system which is used for lithography equipment and a control method thereof; the exposure control system comprises a main control unit, an exposure system control unit which is electrically connected with the main control unit, and a sub-control module which is electrically connected with the exposure system control unit; the exposure system control unit includes a lighting and projection object lens control panel, and a lighting and sensor board which is electrically connected with the lighting and projection object lens control panel; the lighting and projection object lens control panel receives the instructions issued by the main control unit, the instructions are transmitted to the sub-control module by the lighting and sensor board, and then the action implementing conditions of the sub-control module are fed back to the main control unit by the lighting and sensor board. The control system has compact structure, distinctive nuance, and strong ...

Air pipe connector and unlocking separation mechanism thereof

The invention relates to the technical field of rockets, in particular to an air pipe connector and an unlocking and separating mechanism thereof, which comprises a valve body, a piston, a valve core, a valve core driving spring and a positioning ball, in the locking state, under the action of the valve element driving spring, the valve element moves to the right limiting position, part of the surface of the lower portion of the positioning ball makes contact with the surface of the thick section of the valve element, the upper portion of the positioning ball stretches out of the positioning hole and stretches into the positioning groove of the separation sleeve of the fixing base, and the piston blocks the vent hole of the valve body. In the separated state, high-pressure gas is introduced into the driving cavity, the valve element moves to the left limit, part of the surface of the lower portion of the positioning ball makes contact with the surface of the thin section of the valve element ...

Method for constructing coalbed methane concentration model based on Aspen adsorption

The invention provides a method for constructing a coalbed methane concentration model based on Avenadsorption, which comprises the following steps of: establishing a coalbed methane concentration adsorption bed balance model, such as thermodynamics and micropore amp of adsorbed coalbed methane; establishing a macroporous diffusion kinetic model; establishing an adsorption bed model for coal bed gas concentration; and solving the coalbed methane concentration model and optimizing the coalbed methane concentration process. The method comprises the following steps: establishing a micropore amp by virtue of a self-defined function in Aspen software; a macroporous diffusion mass transfer model makes up the defect that a certain error exists between a system default lumped resistance mass transfer model solving result and an experimental value; and data such as gas-phase concentration and solid-phase load distribution in the adsorption bed layer at any time, which are difficult to directly measure ...

Ionic covalent organic framework catalyst for preparing cyclic carbonate through CO2 cycloaddition as well as preparation method and application of ionic covalent organic framework catalyst

The invention belongs to the technical field of heterogeneous catalysis of CO2 resource utilization, and discloses an ionic covalent organic framework catalyst for preparing cyclic carbonate through CO2 cycloaddition as well as a preparation method and application of the ionic covalent organic framework catalyst. According to the preparation method, TpBpy is taken as an original COF framework, alkylation reaction is carried out on different halogenated alkanes and N atoms in the framework, reaction sites on construction elements are functionalized, and the ionic covalent organic framework material can be obtained in one step. As a catalyst, the material can catalyze CO2 cycloaddition reaction under the condition of no metal, no solvent and no cocatalyst, and high yield of cyclic carbonate is obtained. The material has excellent cycling stability and wide application prospects.

Edge coordinate acquisition method, wafer alignment identification method and wafer girdling method

The invention discloses an edge coordinate acquisition method, a wafer alignment identification method and a wafer girdling method.According to the coordinate acquisition method, in the process of acquiring image acquisition coordinates according to a four-point alignment method, whether an image acquired at a through hole by an image acquisition device meets a preset condition or not is determined, and if not, the edge coordinate is acquired according to the preset condition; the optical axis of the lens of the image acquisition device moves a position in the through hole to perform image acquisition and recognition again; if yes, determining whether a wafer main body edge on the image is a normal edge, and if yes, acquiring a corresponding image acquisition coordinate during image acquisition; and if not, moving the optical axis of the lens of the image acquisition device by a position in the through hole to perform image acquisition again. According to the invention, when the image meeting ...

Near space circular synthetic aperture radar rapid back-direction projection imaging method

The invention discloses a near space circular synthetic aperture radar rapid back-direction projection imaging method. In view of the problem of near space circular synthetic aperture radar rapid imaging, the method replaces a phase error in coherent imaging method with a pixel amplitude error as the evaluation criterion of imaging precision, approximately expands through low order of Green function which is based on chebyshev nodes and lagrange interpolation according to the principle of minimum mean square error, switches the problem of calculation of sub aperture projection to the problem of calculation of limited number of approximate expansion coefficients, and reduces as much as possible the number of expansion coefficients under the condition of meeting the focusing accuracy so that algorithm computational complexity is reduced, and then accomplishes the imaging from coarse focusing to fine focusing by applying recursive computation. Compared with the existing circular SAR back-direction ...

Intelligent electricity-stealing-resistant damage-resistant sealing and locking system

The invention provides an intelligent electricity-stealing-resistant damage-resistant sealing lock system used for additional installation of sealing and locking measures for a metering cabinet and realizing an intelligent sealing function. The system comprises a cloud, an electronic seal and an intelligent terminal, an electric power system module is arranged in the intelligent terminal, the cloud is used for storing data, and the electronic seal is used for being fixedly arranged at a latch of a door panel of the metering cabinet and is combined with an original mechanical lock.

Distortionless three-dimensional image reconstruction method for bistatic synthetic aperture radar (SAR) sea surface ship moving target

The invention discloses a bistatic SAR sea surface ship moving target distortionless three-dimensional image reconstruction method, and the method comprises the steps: firstly building a bistatic SAR space geometric configuration and a sea surface ship moving target echo model, and completing the initialization of parameters; the method comprises the following steps: acquiring a bistatic distance process from a bistatic SAR to any scattering point in a sea surface ship moving target and pulse pressure echoes of the sea surface ship moving target of the bistatic SAR, preprocessing the echoes, removing Doppler ambiguity in the echoes of the bistatic SAR and correcting the distance migration of the echoes to obtain a projection of a distance-centroid-frequency modulation domain; and finally, carrying out remapping based on a local Cartesian coordinate system, correcting three-dimensional distortion of the target, and realizing distortionless three-dimensional image reconstruction of the ship ...

Preparation and functionalization method of integral catalytic reactor

The invention provides a preparation method of an integral catalytic reactor, which comprises the following steps: S1, preparing a copper oxide tube: introducing air at the speed of 10-40mL/min at the temperature of 200-400 DEG C, and moving the copper tube at the speed of 1.7-13.6 mm/min; s2, the copper pipe is reduced, specifically, hydrogen is introduced at the speed of 10-40 mL/min at the temperature of 200-400 DEG C, and the moving speed of the copper pipe is 1.7-13.6 mm/min; and S3, carbon fiber growth: at the temperature of 200-400 DEG C, acetylene is introduced at the speed of 0.1-5 mL/min, nitrogen is introduced at the speed of 0.1-5 mL/min, and the moving speed of the copper pipe is 1.7-13.6 mm/min. According to the integral catalytic reactor, when oxygen-containing groups are functionally introduced, reagents such as concentrated sulfuric acid, hydrogen peroxide and potassium permanganate with strong corrosivity are not used, carbon fibers can be oxidized to introduce the oxygen-containing ...

Rotary drum washing machine's washtub and rotary drum washing machine who has it

The utility model discloses a rotary drum washing machine's washtub and rotary drum washing machine who has it, rotary drum washing machine's washtub includes: outer bucket, an inner barrel, interior bucket is established in the outer bucket and with outer bucket is integrative to be formed, interior bucket with inject the equilibrium liquid cavity between the outer bucket. According to the utility model discloses a rotary drum washing machine's washtub has the self -balancing can the reinforce, occupation space is little, advantages such as the structural rigidity is high, production efficiency is high, the axiality is good.

Anti-erosion nuclear power switch cabinet

The invention discloses an anti-erosion nuclear power switch cabinet, and relates to the technical field of nuclear power switch cabinets, the anti-erosion nuclear power switch cabinet comprises a cabinet body, the top of the cabinet body is provided with an adjusting mechanism, and the upper part of the adjusting mechanism is connected with an anti-dripping top cover used for covering the top of the cabinet body; the adjusting mechanism comprises a front stand column located on the front side of the cabinet body and a rear stand column located on the rear side of the cabinet body, the front stand column is higher than the rear stand column, and the front portion of the anti-dripping top cover is hinged to the front stand column. The rear stand column is hollow, a spring is arranged in the rear stand column, and the upper end of the spring is connected with the bottom of the drip-proof top cover; a front baffle is arranged on the front portion of the drip-proof top cover, a rear baffle ...

Inorganic earthen site anchor rod grouting material based on calcium oxide

The invention relates to an inorganic earthen site anchor rod grouting material based on calcium oxide. The material comprises the following components in percentage by mass: 30-40% of clay, 10-15% of fine sand, 30% of quick lime, 10-15% of water and 2-5% of carbon dioxide slow-release agent. The preparation method of the material comprises the following steps: mixing calcium oxide, clay and fine sand with water, adding the carbon dioxide slow-release agent, mixing up and filling, wherein the highest reinforcing strength can be reached within 10-30 days. According to the material, the used materials are chemical pulp materials which are low in price, simple in formula, unlikely to cause environment pollution, approximate to components of an earthen site, moderate in strength and applicable to reinforcement of anchor rods of the earthen site.

Internal bending formation method of continuous and local uneven loading surface of sheet belt

The invention relates to an internal bending formation method of the continuous and local uneven loading surface of a sheet belt, which is used for carrying out continuous and local wedge-shaped roll formation on a strip-shaped sheet belt (2) by utilizing two symmetrical and opposite-rotation conical rolls (1). The method and comprises the following steps of: preparing materials, setting forming parameters, cutting, forming and finishing. Before formation, the cutting angle of one end of the sheet belt along a width direction is determined according to the size and the forming parameters of the sheet belt, the cutting end of the sheet belt (2) is arranged in a roll gap, and the sheet belt and the conical rolls (1) are in linear contact; . Duringduring formation, one side of the cutting end of the sheet belt (2) is placed in the roll gap, and one end of the sheet belt, having smaller shorter length, is close to one side of a small gap of the roll gap. In the invention, the sheet belt is ...

Washing machine

The utility model discloses a washing machine, including body, a connecting device and the 2nd connecting device, a connecting device is fixed in ground, and the 2nd connecting device connects a body and a connecting device, and the 2nd connecting device is used for the damping. A connecting device and the 2nd connecting device are used for directly transmitting the noise of ground in order to reduce washing machine with the vibration of body. So, owing to adopt a connecting device and the 2nd connecting device directly to transmit ground with the vibration of body to washing machine's noise has been reduced.

Safety control system of elevator

The invention discloses a safety control system of an elevator. The safety control system of the elevator comprises double encoders which are connected with a safety controller through a shielding cable, the double encoders are a traction wheel encoder used for detecting the running state of a traction machine in real time and a speed limiter encoder used for detecting the running state of a life car in real time, the safety controller is used for detecting the running conditions of the traction machine and the lift car at the same time, the synchronizing running information of the traction machine and the synchronizing running information of the lift car are compared, the statistic data of the synchronizing information are saved, the statistic data of the synchronizing information are compared with set values of the safety controller, and corresponding measures are taken. The safety control system of the elevator has the advantages that regular maintenance or fault maintenance of the elevator ...

Preparation method and application of efficient corn straw adsorbent

The invention relates to a preparation method and application of an efficient corn straw adsorbent. The preparation method of the efficient corn straw adsorbent particularly comprises the following steps: cleaning corn straw, drying, crushing, sieving and dewaxing; then adding nitrilotriacetic acid into a mixed organic solution containing acetic anhydride and an activator, stirring at 60-70 DEG C, adding the corn straw after reaction, stirring at 70-80 DEG C, and separating, washing and drying after reaction so as to obtain the efficient modified corn straw adsorbent. The adsorbent can be used for removing heavy metal ions such as Cd<2+> and Pb<2+> in wastewater, has the absorbing capacity reaching up to 100mg/g and 160mg/g respectively for heavy metal ions of Cd<2+> and Pb<2+>, has the characteristics of simple preparation method, high absorbing capacity, reusability, adsorption stability and no secondary pollution, and also achieves resource utilization of biomass resources.

Washing machine

The invention discloses a washing machine. The washing machine comprises a machine body, a door cover and an imaging device. The machine body is provided with a containing cavity and comprises a control assembly, and the control assembly comprises a display control panel and a circuit board which are connected. The door cover is arranged on the machine body in a pivoted mode to open or close the containing cavity. The imaging device is used for projecting operation information displayed on the display control panel to the door cover or the machine body in real time. According to the washing machine, due to the fact that the operation information on the display control panel is projected to the door cover or the machine body in real time through the imaging device, the display effect is better, and a user can use the washing machine more conveniently.

Air pipe connector

The invention relates to the technical field of rockets, in particular to an air pipe connector which comprises a fixing base, a pulling-out base and an unlocking mechanism. The fixing seat comprises a fixing plate, a maintenance rear cover, a separation sleeve and an on-rocket air pipe connector with an air channel penetrating through the two ends. The pulling-out base comprises a base plate, an adjusting cover and a ground air pipe connector with an air channel penetrating through the two ends. The air pipe connector can automatically fall off in advance before a rocket is launched, and it can be guaranteed that air pipes are connected firmly, separated rapidly and high in reliability.

Carrying device for building construction

The invention provides a carrying device for building construction, belongs to the technical field of building construction, and effectively solves the problem that a concrete cart and a hopper of a secondary constructional column pouring machine are inconvenient to unload in a butt joint manner on a construction site. According to the technical scheme, a trolley is included, a supporting mechanism is arranged on the rear side of the trolley, a door opening and closing assembly is arranged on the front side of the trolley, a push plate is arranged on the inner side of the trolley and connected with a driving mechanism, and the trolley is provided with an advancing motor which is connected and matched with the driving mechanism through a transmission assembly. The carrying device for building construction has the beneficial effects that the labor intensity of workers can be relieved, and the working efficiency can be improved.

Method for constructing lung tumor experimental animal model

The invention provides a method for constructing a lung tumor experimental animal model. The method comprises the following steps of: 1, feeding a dog with cyclosporin according to the weight ratio of the dog to cyclosporin of 10mg to 1kg 4 days before inoculation; 2, preparing canine transmissible venereal tumor (CTVT) tissue blocks; and 3, puncturing to a predetermined target part by using a 16G guide puncture needle, placing 2 to 3 CTVT tissue blocks into the puncture needle, arranging a sterile gelatin sponge strip behind the CTVT tissue blocks, pushing the tissue blocks into lung tissues by a needle core and pulling the needle out. In the method, CTVT cells are used as tumor strains, the tumor tissue blocks are prepared through subcutaneous tumor cell passage by using the characteristics of transplantability and genetic stability; in-lung planting is performed by a minimally invasive intervention method to establish a dog transplantable lung cancer model; and the model can be applied ...

Washing machine

The invention discloses a washing machine. The washing machine comprises a machine body, a door cover and a virtual operation panel. The machine body is provided with a containing cavity and comprises a circuit board. The door cover is arranged on the machine body in a pivoted mode to open or close the containing cavity. The virtual operation panel is in communication with the circuit board and can project an operation interface used for controlling work of the washing machine to the door cover or the machine body. According to the washing machine, the virtual operation panel is used for replacing tangible operation keys, the structure of the circuit board is simplified, the reliability of the circuit board is improved, upgrading and updating can be achieved only by updating programs, entity components are improved little, and the improvement cost is saved.

Recycled concrete L-shaped steel tube special-shaped column

The invention discloses a recycled concrete L-shaped steel tube special-shaped column. The special-shaped column is formed by welding a round steel tube and two U-shaped steel tanks, common aggregate concrete is poured into the U-shaped steel tanks, and recycled aggregate concrete is poured into the round steel tube; and anti-shear bolts are welded in the U-shaped steel tanks. Through the adoption of the steel tube with large diameter on the corner of the L-shaped special-shaped column, the recycled concrete is restrained, the force-bearing performance is improved, the torsion capacity is improved, and the bearing capacity and the shock resistance of the recycled concrete restrained by the steel tube are improved, the doubt of people on the poor performance of the recycled concrete is lowered, the recycled concrete can be popularized and applied to the high-rise buildings and the construction waste can be recycled. The recycled concrete L-shaped steel tube special-shaped column disclosed ...

ST-BSSAR imaging method

The invention discloses an ST-BSSAR (Synthetic Aperture Radar) imaging method, comprising the steps of: firstly employing a first time of frequency-frequency coordinate transformation to remove space-variant range bending; secondly performing non-linear frequency modulation scaling processing to balance a space-variant Doppler frequency modulation rate; employing a second time of frequency-frequency coordinate transformation to remove pace-variant range migration; and finally utilizing two-dimensional Fourier inverse transformation to complete focusing and imaging on ST-BSSAR echo, thereby solving the problem of two-dimensional variance in ST-BSSAR data processing which can not be solved by a traditional SAR imaging method and a present double-base SAR imaging method. The method effectively solves the problems of ST-BSSAR range migration and two-dimensional variance of an orientation Doppler frequency modulation rate by combing the frequency-frequency coordinate transformation and the orientation ...

Mulberry miR408 precursor gene and application thereof in adjusting biosynthesis of mulberry anthocyanin

The invention discloses a mulberry miR408 precursor gene, and the sequence of the gene is (a) a nucleotide sequence as shown in SEQ ID NO: 1, or (b) a mature mulberry miR408 nucleotide sequence which has at least 90%, at least 95%, at least 96%, at least 97%, at least 98% or at least 99% homology with the nucleotide sequence as shown in SEQ ID NO: 1 and is generated after shearing. The invention also provides an application of the mulberry miR408 precursor gene in regulation of biosynthesis of mulberry anthocyanin. According to the invention, miR408 and a precursor gene thereof in mulberry are obtained through cloning, and transgenic arabidopsis thaliana proves that miR408 participates in a biosynthesis pathway of anthocyanin. The invention provides a theoretical basis for functional research of mulberry miR408 and deep research of an anthocyanin synthesis mechanism.

Preparation method and application of modified ramie fiber adsorbent

The invention relates to a preparation method and application of a modified ramie fiber adsorbent. The preparation method comprises the following specific steps: (1) preprocessing a ramie fiber raw material, namely carrying out crushing, sieving, wax removal and alkalization on ramie fiber for later use; (2) compounding anhydride by virtue of a chelating agent, namely adding a chelating agent EGTA into a mixed organic solution of acetic anhydride and an activating agent, carrying out stirring reaction at 65 DEG C, and filtering and drying the solution for later use; (3) modifying the ramie fiber by virtue of the anhydride, namely adding the preprocessed ramie fiber powder with the compounded anhydride into an activating agent solution, carrying out the stirring reaction at 75 DEG C, and washing and drying to obtain the modified ramie fiber adsorbent. The modified ramie fiber adsorbent is good in modifying effect, large in adsorption capacity (the maximal adsorption capacity to a cadmium ...

Wafer girdling method and system

The invention relates to the field of semiconductor device processing, and particularly discloses a wafer girdling method and system.The wafer girdling method comprises the following steps that S1, whether a wafer on a cutting table has a cutting channel or not is determined through image recognition; s2, when it is determined that no cutting channel exists on the wafer, a cutting device is controlled to start cutting from the cutting starting point position; s3, when it is determined that the cutting channel exists on the wafer, the stop position of the cutting channel is determined through image recognition; and S4, the cutting device is controlled to continue cutting from the stop position of the cutting channel. According to the method, when the ring cutting machine is restarted to continue ring cutting, whether a cutting channel exists on the wafer or not is determined firstly, normal cutting is carried out when no cutting channel exists, the stop position of the cutting channel is ...

Test tool, test system and test method of air pipe connector

The invention discloses a test tool, a test system and a test method for an air pipe connector, and the test tool for the air pipe connector comprises an installation system, a protection system and an air supply system. The installation system at least comprises a base, at least one stand column, an installation frame used for installing the air pipe connector and an upper frame. The protection system at least comprises an elastic device and a telescopic device; the gas supply system at least comprises a test gas supply device and a separation gas supply device. According to the application, the applicability of the test tool and the safety of the test are improved.

Computer matrix box and washing machine

The utility model discloses a computer matrix box, include that the computer edition of books is personally experienced sth. Part of the body and at least one holds the frame, hold the side of setting up in the computer edition of books body, hold the frame and be used for accommodating the functional module. The utility model also discloses a washing machine. So, because the frame that holds that is used for acceping the functional module is located to the side of the computer edition of books body, the reasonable development utilizes the side space of the computer edition of books body, need not redesign computer board, reduces work load, provides production efficiency.

Supported Ni3P/M-gamma-Al2O3 catalyst, preparation method and application

The invention belongs to the technical field of catalytic chemical industry, and provides a supported Ni3P/M-gamma-Al2O3 catalyst, and a preparation method and application thereof. According to the preparation method, auxiliary metal is introduced into a Ni3P/gamma-Al2O3 system, the auxiliary metal is introduced by dipping metal nitrate into an alumina carrier, after treatment, a catalyst precursor is prepared by using a deposition-precipitation-chemical plating method, and finally, the required Ni3P/M-gamma-Al2O3 catalyst is obtained through reduction. Anisole is used as a reaction substrate, a series of condition screening is carried out in a continuously flowing fixed bed reactor, the highest reaction activity is obtained under the conditions that the reaction temperature is 290 DEG C, the pressure is 4 MPa, the weight hourly space velocity is 107 h <-1 > and the reduction temperature is 400 DEG C, and the conversion rate and the deoxidation rate of the anisole are close to 100%. And ...

Washing machine

The utility model discloses a washing machine, washing machine includes: the plastic width -lock type single -layer sealed packing case comprises a casin, be equipped with magnetic substance in the box, an inner barrel, inject the inner chamber that to be used for holding the clothing in the interior bucket, interior bucket rotationally sets up in the box, be equipped with on the interior bucket with the solenoid that magnetic substance corresponds. According to the utility model discloses washing machine may not need motor drive for washing machine's simple structure.

Control method of local loading and shaping equiaxial alpha content of titanium alloy

The invention discloses a control method of local loading and shaping equiaxial alpha content of titanium alloy. After a blank is changed to forge and is pre-shaped, a shaped forging piece is obtained by isothermal local loading and shaping, finishing and heat treating. Local loading is finished by two passes, and each pass is finished by two loading steps. A mould is divided into two to three modules, and the relative position of different modules can be adjusted. In each loading step in the same pass, different modules are used for carrying out deforming on the blank; after all loading steps in the pass are finished, the next step is started, the loading method in the last step is repeated to finish the forging piece deformation; the equiaxial alpha phase volume fraction effectively controlling the local loading and shaping of the forging piece is obtained, and is controlled within 10-20%; the equiaxial alpha phase volume fraction of different positions on the forging piece differs within ...

Washing machine

The utility model discloses a washing machine, include: a housing, the casing is equipped with the drain pipe, the staving, the staving is rotationally established in the casing, the chamber of holding has in the staving, be equipped with the opening orientation on the lateral wall of staving the recess that holds the chamber, the barrel head, the barrel head is established the bottom of staving, the barrel head be equipped with with the guiding gutter of recess intercommunication, the guiding gutter with the drain pipe intercommunication. According to the utility model discloses a washing machine, the staving uses with the barrel head cooperation, can make washing machine realize the dehydration function to bucket and outer bucket in need not to set up simultaneously in washing machine, only need a bucket can, spare part reduces, assemble simplyr, the cost reduces, has reduced whole weight, and is more favourable to spare parts such as motors, the washing machine with traditional two buckets ...

Squint SAR ground moving target extracting method

The invention discloses a squint SAR ground moving target extracting method. The squint SAR ground moving target extracting method comprises the following steps that 1, echo signals of a stationary target and a moving target are computed; 2, range direction Fourier transformation is carried out; 3, consistent range walk correction is carried out on a range frequency domain and an orientation time domain; 4, range direction residual phase compensation is carried out; 5, variable parameter extension azimuth nonlinear CS is carried out; 6 the echo signals subjected to the extension azimuth nonlinear CS are multiplied by corresponding azimuth minus factors respectively and are transformed to the azimuth frequency domain; 7, the amplitudes of the two echoes are subtracted, the echo of the stationary target is removed, and stationary target clutter suppression is achieved; 8, amplitude detection and moving target extraction are carried out. The method solves the problems that the range and azimuth ...

Method for determining isothermal local loading process parameters of approximately alpha-typed titanium alloys

The invention provides an experimental method for determining isothermal local loading process parameters of approximately alpha-typed titanium alloys, comprising the following steps: heating titanium alloy materials at a temperature of 30 DEG C above the phase transformation temperature, repeatedly forging the titanium alloy materials in multiple directions below the phase transformation temperature, completing local loading and forming within 1-2 heat forging, ensuring the heating and forging temperature to be 15-40 DEG C below the phase transformation temperature and the loading speed to be 0.4-0.6mm/s, synchronously carrying out whole loading in the last heat times when the local loading deformation is less than the total deformation, stopping carrying out whole loading if the local loading deformation meets the requirement of the total deformation, sampling after heat treatment to carry out test and metallographic analysis, accurately obtaining the quantitative relations between such ...

Method for realizing near alpha titanium alloy dual-property employing local loading process

The invention discloses a method for realizing near alpha titanium alloy dual-property employing local loading process, which divides a workpiece into an A loading zone and a B loading zone, and a C zone is the transition zone between the A loading zone and the B loading zone, wherein the A loading zone is a large deformation zone while the B loading zone is a small deformation zone, and the method is realized through the isothermal local loading with two passes and two loading steps in each pass. The specific shaping process comprises blank forging, preparation of preforming billet, isothermal local loading, finishing, thermal treatment and nondestructive testing. The shaped workpiece can obtain the tri-modal microstructure with high room temperature plasticity, high strength and long fatigue life and 20% equiaxial alpha phase content in the A loading zone, the lamellar microstructure with high tensile strength at high temperature, high fracture toughness and strong creep deformation resistance ...

Control method of local loading and shaping equiaxial alpha content of titanium alloy

The invention discloses a control method of local loading and shaping equiaxial alpha content of titanium alloy. After a blank is changed to forge and is pre-shaped, a shaped forging piece is obtained by isothermal local loading and shaping, finishing and heat treating. Local loading is finished by two passes, and each pass is finished by two loading steps. A mould is divided into two to three modules, and the relative position of different modules can be adjusted. In each loading step in the same pass, different modules are used for carrying out deforming on the blank; after all loading steps in the pass are finished, the next step is started, the loading method in the last step is repeated to finish the forging piece deformation; the equiaxial alpha phase volume fraction effectively controlling the local loading and shaping of the forging piece is obtained, and is controlled within 10-20%; the equiaxial alpha phase volume fraction of different positions on the forging piece differs within ...

Preparation of Ni-Cu-B catalyst and application of Ni-Cu-B catalyst in selective hydrogenation of furfural

The invention belongs to the field of industrial catalysis, and provides preparation of a Ni-Cu-B catalyst and application of the Ni-Cu-B catalyst in furfural selective hydrogenation.The catalyst is a bulk phase catalyst, nickel chloride serves as a nickel source, sodium borohydride and copper sulfate are selected as a boron source, the bi-metal bulk phase Ni-Cu-B catalyst is prepared through a liquid phase reduction method, the main active center is Ni, and the main active center is Ni; and subsequently, the catalytic effect is further modulated by introducing a metal additive Cu with different contents. The bimetallic bulk phase catalyst Ni-Cu-B adopted in the technological process is easy to store, high in catalytic efficiency and low in preparation cost, has excellent selectivity on the main product furfuryl alcohol, has the product yield of 97.6%, and is small in pollution to the environment.

Double-base foresight synthetic aperture radar moving-target speed error function construction method

The invention discloses a double-base foresight synthetic aperture radar moving-target speed error function construction method. According to the method, first, the Doppler barycenter and the Doppler adjustable frequency of a moving target are deduced in a double-base foresight SAR mode, and the orientation signals of the moving target are constructed; then the reference functions with speed estimation errors and the bearing signals of the moving target are used for correlation integral processing; finally, the largest value of the correlation integral results under different moving target speed estimation errors are respectively extracted to construct the speed error function. The speed error function can be used for comprehensively conducting quantitative analysis and research on the influence of movement of the moving target on imaging, and also can be used for completing double-base SAR moving target moving compensation, determining orientation self-focusing optimized long selection ...

Anti-head-smut corn auxiliary breeding method

The invention provides an anti-head-smut corn auxiliary breeding method, which mainly adopts a seedling culture disc for seedling inoculation. The infection of head smut germs on plants is promoted through three measures of transplanting young seedlings, watering little water on survival plants and manually inhabiting the growth of the plants, and the disease incidence is improved for assisting the anti-head-smut plant breeding. When the method of the invention is adopted, the seedling culture disc is adopted for seedling culture in the early breeding period, and the culture conditions are manually controlled, so the infection chances of head smut germs on the seed and the seed infection degrees are identical, and at the same time, the outbreak of the disease is promoted through transplanting and breaking the normal growing conditions by drying treatment after the plants are survived, so the disease outbreak rate of the plants is improved by 30 to 50 percent, and the disease resistance ...

Unfavorable geology construction method based on gravel piles and CFG piles

The unfavorable geology construction method based on the gravel piles and the CFG piles comprises the steps that simulation modeling is conducted on a foundation, and a simulation construction space is generated; performing gravel pile positioning and CFG pile positioning in the simulated construction space, setting process construction items of the gravel piles and the CFG piles after positioning, performing twin supervision in the simulated construction space through the construction progress, obtaining twin supervision data, and performing a simulation test and a composite foundation static load test on the twin supervision data; and when the simulation test and the composite foundation static load test both meet the experiment requirements, outputting a construction result.

High-heat-storage environment-friendly high-elasticity down feather and production process thereof

The invention provides high-heat-storage environment-friendly high-elasticity down feather. Polyester staple fiber serves as the base material and comprises, by weight, 73%-90% of recycled PET, 5%-7% of far infrared master batches and 5%-20% of PTT elastic polyester chips. The polyester staple fiber is opened to be in a pearl ball shape. The invention further relates to a production process of the high-heat-storage high-elasticity environment-friendly down feather. The problems that a traditional three-dimensional product is thick and heavy and a two-dimensional fine-denier product is poor in fluffiness are solved, and the down feather has good skin-friendliness and fluffiness and is an ideal selection as filling of a summer quilt.

Carbon dioxide dry process fracturing discharge device

The utility model relates to a petrochemical equipment technical field can't carry out accuracy control to row material volume for solving prior art, and arrange and expect technical problem chronic, the inefficiency, the utility model provides a carbon dioxide dry process fracturing discharge device, including sealed container, conveyer pipe, delivery pump and flowmeter, sealed container passes through the conveyer pipe and links to each other with the delivery pump, the flowmeter sets up on the conveyer pipe, sealed container's bottom is provided with a bin outlet, wherein, include the mixture of compriseing liquid carbon dioxide and solid bulk cargo among the sealed container, the delivery pump is carried to sealed container through the liquid carbon dioxide that the conveyer pipe will come from in the liquid storage pot, and sealed container passes through bin outlet discharge mixture, and the liquid carbon dioxide of flowmeter in to the liquid storage pot inlet is monitored. The utility ...

Energy management method and device and automobile

The invention discloses an energy management method and device and an automobile, and relates to the technical field of automobiles, and the method comprises the following steps: obtaining operation parameters of an electric automobile; according to the operation parameters, a first operation mode enabling the fuel consumption of the electric automobile to be minimum is determined; and distributing torque for at least one of a driving motor and an engine of the electric automobile according to the operation parameters and the first operation mode. According to the scheme, the electric energy stored by the power battery is fully utilized, and the fuel consumption is reduced.

Log multiple-faced radiation quarantine inspection processing apparatus

Device and method for preparing large-area lead salt semiconductor single crystal films in batches

The invention relates to a device and a method for preparing large-area lead salt semiconductor single crystal films in batches. Comprising a multi-section vacuum tube furnace, a gas source, a vacuum pump and a heating and temperature control device, the multi-section type vacuum tube furnace comprises a reaction source placing area, a constant-temperature heating area and a temperature control deposition area. The large-area lead salt semiconductor single crystal film grows on a vertically placed substrate, and is obtained through chemical vapor deposition by using a vacuum tube furnace and a heating and temperature control device. By regulating and controlling the temperature gradient of the temperature control deposition area, the reaction source, the deposition time, the gas flow and the growth substrate, the film thickness, the film area, the surface appearance, the grain size and the single crystal property of the lead salt semiconductor film are controlled. The method can effectively ...

Ceramic tile with seam beautifying edgings

The utility model relates to the technical field of ceramic tiles, in particular to a ceramic tile with a beautiful seam edging, which is characterized in that beautiful seams are arranged at the edge of a tile surface, a waterproof layer is arranged below the tile surface, a carbon fiber heating cable is arranged below the waterproof layer, a fixing plate is fixed outside the carbon fiber heating cable, and the carbon fiber heating cable is fixed on the fixing plate. An elastic pad is connected between the carbon fiber heating cable and the fixing plate, and a net plate is arranged below the carbon fiber heating cable. The carbon fiber heating cable fixing device is ingenious in design, the fixing plate plays a role in limiting and fixing the carbon fiber heating cable, the carbon fiber heating cable is prevented from deviating in the follow-up use process, meanwhile, the elastic cushion plays a certain role in protecting the carbon fiber heating cable, the aluminum foil material has good ...

Modeling method for clutter model of airborne bi-static MIMO (multiple input multiple output) radar

The invention discloses a modeling method for a clutter model of an airborne bi-static MIMO (multiple input multiple output) radar. The modeling method specifically comprises the following steps: establishing an expression of a Doppler frequency, an emission space angle frequency and a reception space frequency of airborne bi-static MIMO radar echo by using an MIMO mode of the MIMO radar; educing a linear relationship of the Doppler frequency, the emission space frequency and the reception space frequency; respectively expanding clutter spectrum distribution to a three-dimensional space, wherein the clutter spectrums of the bi-static MIMO radar are distributed in certain plane in the three-dimensional space, and the plane of the clutter spectrums does not change with the bi-static distance, and thus the distance dependency of the airborne radar echo is eliminated, and the problems that echo of a traditional airborne bi-static radar echo is strong in distance dependency and is difficult ...

Precipitation control system for soft foundation

The invention provides a precipitation control system for a soft foundation, and the system comprises a scheme generation module which is used for generating an initial precipitation scheme based on the field data in the influence range of a target soft foundation; the first monitoring module is used for generating a real-time sandy soil content curve based on the real-time sandy soil content of the water outlet monitoring position obtained through real-time monitoring in the process of executing the initial precipitation scheme; the second monitoring module is used for monitoring the total settlement height and the real-time settlement speed of each overground building in the influence range in real time in the process of executing the initial precipitation scheme; the control adjustment module is used for adjusting the power of a water pumping pump in the initial precipitation scheme in real time based on the total settlement height and the real-time settlement speed of each overground ...

Dual-flight transfer variation bistatic forward-looking synthetic aperture radar imaging method

The invention discloses a dual-flight transfer variation bistatic forward-looking synthetic aperture radar imaging method. According to the problems of strong distance orientation coupling and two-dimensional spatial-variant properties in dual-flight transfer variation bistatic forward-looking synthetic aperture radar imaging, the method comprises the steps of firstly, adopting improved Keystone conversion to remove two-dimensional spatial-variant RCM and complete distance compression, then adopting an extended nonlinear CS algorithm to balance Doppler mass centers of target points of the same distance unit and the slope of frequency modulation, and finally obtaining an imaging result through orientation compression. According to the dual-flight transfer variation bistatic forward-looking synthetic aperture radar imaging method, the problem of two-dimensional spatial-variant under the transfer variation bistatic forward-looking mode is effectively solved, and therefore accurate focusing ...

Double-base foresight SAR moving target imaging method and moving target speed estimation method

The invention discloses a double-base foresight SAR moving target imaging method and a moving target speed estimation method on basis of mismatching compression. The imaging method includes the steps that firstly, a Doppler mass center and the Doppler frequency rate of a double-base foresight SAR moving target are deduced and a moving target position signal is constructed; by means of a reference function with speed estimation errors and the moving target signal, mismatching compression processing is carried out, and a moving target defocusing result image after mismatching compression processing is obtained on the basis of the stationary phase principle; Doppler mass center errors and Doppler frequency rate errors are estimated according to the relationship between the position of the defocusing image and defocusing widening widths, and Doppler mass center errors and Doppler frequency rate errors; then the accurate Doppler mass center and the accurate Doppler frequency rate of the moving ...

Method for propagating corn seeds by utilizing cytoplasm-sterile corn hybrid seeds as isolation zone

The invention provides a method for propagating corn seeds by utilizing cytoplasm-sterile corn hybrid seeds as an isolation zone. The cytoplasm-sterile corn hybrid seeds, which are alien with the female parent of the seed production field, of which the mature period is similar to the female parent and the plants are taller than that of the inbred line of the male parent of the seed production field, and which can be pollinated by the inbred line of he male parent, are selected to grow in the isolation area for propagating the corn seeds; because the pollen of the sterile hybrid seeds has high sterility, the plants of the sterile hybrid seeds are tall and the leaves are luxuriant, the introduction of the external core pollen can be more effectively prevented; meanwhile, the inbred line of the male parent, which is same as the male parent of the seed production field is grown in a certain ratio and pollinates the sterile hybrid seeds so as to ensure that the sterile hybrid seeds are fruited ...

Multi -functional ammeter is deposited, transfer cart

Multi -functional ammeter is deposited, transfer cart comprises dolly part, shock -absorbing structure and box, and the box part includes upper and lower two parts, is provided with the ammeter in the top and gets and put the unit, and the ammeter is got the structure of putting the unit and is: preceding, back two parts are split into with the inner space to a baffle, and the spring both ends are fixed respectively on the wall, just has a trend of oppressing forward to the baffle behind baffle and cavity, through the pulling stay cord, can be so that the baffle rearward movement, a pull asks the body to set up in the cavity to it sets up limit structure, quick locking structure to hold in the palm at the pull between the body and the cavity inner wall, the top surface sets up roof and lid on the cavity, is provided with the drawer down in the part. This multi -functional ammeter is deposited, transfer cart can make the table count and realize the first in first out, and regional formation ...

Ware absorbs water

The utility model provides a ware absorbs water, including the tubular body and the cap body, cap body sealing connection forms the chamber that absorbs water above the body, the spheroid has been placed to the intracavity that absorbs water, cap body top is provided with hose nipple, and the hose nipple diameter is less than cap body diameter, hose nipple outer wall interval is provided with a plurality of beads, hose nipple is provided with the stop part with the connecting portion of the cap body, the body bottom is the neck structure that contracts, and the neck below of contracting forms loudspeaker form water sucking mouth. This ware absorbs water simple structure, with low costs, it is effectual to absorb water. The setting up of hose nipple department bead makes block that the hose can be inseparable on connecting, is difficult for deviating from. Setting up of stop part still leaves out the water clearance when making the spheroid contact absorb water the chamber top, prevents ...

Repeated annealing and spheroidizing method of flake alpha in near alpha titanium alloy hybrid structure

The invention discloses a repeated annealing and spheroidizing method of flake alpha in a similar alpha titanium alloy hybrid structure. The method comprises the following steps: heating a resistance furnace to 50-60 DEG C below a phase transformation point of titanium alloy; putting near alpha titanium alloy sample with a hybrid structure into the resistance furnace to carry out high-temperature annealing heat-preservation treatment, wherein the heat preservation time is 15+/-0.5min/mm*D, and D is the minimal boundary dimension of the sample; taking out the sample to cool in air after heat preservation is ended; finishing annealing for the first time; and repeating the annealing process for 2-5 times, so that the equiaxial alpha content is increased to 5-20%. The defects that the flake alpha two-phase area deformation spheroidizing technology of the near alpha titanium alloy is complicated in process and high in cost are overcome by repeated annealing, and the method is applicable to a ...

Uniform spraying device for anti-fouling and anti-corrosion coating

The invention belongs to the technical field of anti-fouling and anti-corrosion paint, and particularly relates to a uniform spraying device for an anti-fouling and anti-corrosion coating. Comprising a spraying cabinet base, a spraying cabinet is fixedly connected to the top end of the spraying cabinet base, a sealing sliding window is slidably connected to the front side of the spraying cabinet, vent holes are formed in the left side and the right side of the spraying cabinet correspondingly, and an air draft structure fixedly communicates with the top end of the spraying cabinet; sliding spray gun structures are arranged on the two sides of the spherical parallel multi-direction rotating structure correspondingly. By means of the structures, pollution generated in the spraying process can be effectively reduced, toxic and harmful substances and aerogel generated in the coating spraying process cannot affect the environment, cleanliness of the factory environment can be guaranteed, peculiar ...

Shutter device used for lithographic exposure and application method of shutter device

Provided is a shutter device used for lithographic exposure and an application method of the shutter device. The shutter device comprises a fixed blade and a movable blade. Holes are distributed on the fixed blade and the movable blade. The fixed blade and the movable blade are identical in distribution of the holes in a light beam irradiation area. The movable blade can move relatively to the fixed blade so that the holes of the movable blade and the holes of the fixed blade change from being not intersected to be overlapped or partially overlapped, and thus opening and closing of a shutter are realized. The complete staggered separating state of the holes of the movable blade and the holes of the fixed blade is arranged to be the closed state of the shutter, then the position of the movable blade is the closed position; a range of exposure dose is confirmed, and the range of the exposure dose is segmented; the position of the movable blade of each exposure dose segment is confirmed; and ...

Multifunctional electricity meter storage and transport vehicle

A multifunctional electricity meter storage and transport vehicle is composed of a trolley portion, a damping structure and a box body. The box body comprises an upper portion and a lower portion, wherein an electricity meter taking and storage unit is arranged in the upper portion, and is structurally characterized in that the interior space is divided into a front portion and a rear portion by a partition plate, the two ends of a spring are fixed to the partition plate and the rear wall of a cavity respectively, and the partition plate has the tendency of forward compression; a pull rope is pulled, and therefore the partition plate moves backwards; a tract supporting body is arranged in the cavity, and a limiting structure and a rapid locking structure are arranged between the tract supporting body and the inner wall of the cavity; and a top plate and a cover are arranged on the upper top face of the cavity, and a drawer is arranged in the lower portion of the cavity. According to the ...

Straight-inclined combined tree-root-shaped spiral anchor foundation for power transmission line

The invention discloses a straight-inclined combined tree-root-shaped spiral anchor foundation for a power transmission line, and relates to the technical field of power transmission line engineering, an inclined anchor sleeve rotating device comprises a sleeve installed on the lower middle portion of a main anchor, reinforcing angle steel is installed on one side of the sleeve, a connecting plate is installed on the opposite face of the reinforcing angle steel, and the connecting plate is connected with the inclined anchor sleeve. An inner connecting plate is arranged opposite to the connecting plate, an adjusting screw rod is mounted between the connecting plate and the inner connecting plate, and a connecting sleeve is mounted on one side of the connecting plate; according to the straight-inclined combined tree-root-shaped spiral anchor foundation for the power transmission line, the anchor rod hole is formed in the middle of the main anchor, the anchor rod hole is aligned with the connecting ...

Novel nickel oxide/nickel catalyst for hydrofining p-nitrophenol as well as preparation method and application of novel nickel oxide/nickel catalyst

The invention discloses a novel nickel oxide/nickel catalyst for hydrofining p-nitrophenol as well as a preparation method and application of the novel nickel oxide/nickel catalyst, and belongs to the field of catalytic conversion of nitro-aromatic hydrocarbons. A carrier of the novel nickel oxide/nickel catalyst is silicon dioxide; the active component of the novel nickel oxide/nickel catalyst is a composite material of nickel oxide and nickel, wherein nickel atoms are wrapped by nickel oxide. The novel nickel oxide/nickel catalyst is prepared by adopting the steps of deposition precipitation and reduction oxidation, the catalyst subjected to reduction oxidation treatment is high in dispersity and small in particle size, and the novel nickel oxide/nickel catalyst is uniform in active component distribution, high in reaction activity and long in service life. The preparation method is simple in step and mild in condition, the layered nickel silicate is stable in property, and the raw materials ...

Fast forwarding service end-to-end time delay prediction method

The invention discloses a method for predicting expedited forwarding (EF) service end-to-end delay. The method obtains an EF data stream end-to-end delay upper bound expression, which is more accurate than that obtained in any prior research results, by using deterministic network calculus theory and is an important reference for the quality of service (QoS) control of an actual multimedia network. On this basis, the invention, from the statistical characteristic of the EF data stream, discovers that the birth-death model can be used for modeling EF data stream at network nodes, and finally creatively obtains a probability distribution expression of the EF data stream end-to-end delay upper boundary which can describe the delay upper boundary under different network conditions, while the prior expression can only describe the end-to-end delay under the poorest network conditions. In contrast, the probability distribution of the delay upper boundary can more accurately describe the delay ...

Method for realizing near alpha titanium alloy dual-property employing local loading process

The invention discloses a method for realizing near alpha titanium alloy dual-property employing local loading process, which divides a workpiece into an A loading zone and a B loading zone, and a C zone is the transition zone between the A loading zone and the B loading zone, wherein the A loading zone is a large deformation zone while the B loading zone is a small deformation zone, and the method is realized through the isothermal local loading with two passes and two loading steps in each pass. The specific shaping process comprises blank forging, preparation of preforming billet, isothermal local loading, finishing, thermal treatment and nondestructive testing. The shaped workpiece can obtain the tri-modal microstructure with high room temperature plasticity, high strength and long fatigue life and 20% equiaxial alpha phase content in the A loading zone, the lamellar microstructure with high tensile strength at high temperature, high fracture toughness and strong creep deformationresistance ...

Roller adjusting mechanism of plate belt surface incurvation forming device and adjusting method thereof

The invention relates to a roller adjusting mechanism of a plate belt surface incurvation forming device and an adjusting method thereof. The roller adjusting mechanism comprises two sets of slide block couplings (2), a wedge angle adjuster (7), a cone roller slide fixed mechanism (8) and a set of clearance adjuster (9), wherein the slide block couplings, the wedge angle adjuster and the cone roller slide fixed mechanism are respectively arranged at both sides of a center line of a machine seat (5) and sequentially installed between a speed reducer and the suspending ends of cone roller shafts. By adjusting a clearance adjusting bolt, the clearance adjuster (9) is not in contact with the two cone roller shafts (4); the extension of the two cone roller shafts (4) is adjusted by slide blockcoupling joints in the slide block couplings (2); an adjusting bolt (17) in the wedge angle adjuster (7) is adjusted to realize the adjustment of an included angle formed by the two cone roller shafts ( ...

Multi-satellite stacked satellite unlocking distributor

The invention relates to the technical field of satellite unlocking, in particular to a multi-satellite stacked satellite unlocking distributor which comprises a base, a tensioning device, an unlocking device, a separation boosting device, a satellite stacking set and a tensioning device recycling mechanism. The base comprises an upper plate and a base fixedly connected with the lower surface of the upper plate; the separation boosting device is mounted in the separation boosting device mounting hole, and the separation boosting device comprises a separation seat, a separation spring, an ejector rod and a separation pin puller; the tensioning device comprises two pull rods, a connecting rod and two pre-tightening nuts; the unlocking device comprises two sleeves, a rotating shaft, two unlocking pin pullers, two shaft seats, a transmission device and a driving device. After the multi-satellite stacked satellite unlocking distributor is unlocked, the pull rod of the tensioning device rotates ...

Ultra-wideband monopulse antenna based on tight coupling array and radiation method thereof

The invention discloses an ultra-wideband monopulse antenna based on a tight coupling array and a radiation method thereof. The ultra-wideband monopulse antenna comprises a first truncation, a first tight coupling linear array, a second truncation, a second tight coupling linear array, a third truncation, an upper-layer feed network and a lower-layer feed network, after the first cut-off, the first tight coupling linear array, the second cut-off, the second tight coupling linear array and the third cut-off are sequentially connected from left to right, the lower ends of the first cut-off, the first tight coupling linear array, the second cut-off, the second tight coupling linear array and the third cut-off penetrate through a fourth jack in the upper-layer feed network and are fixedly connected with the lower-layer feed network; the upper-layer feed network and the lower-layer feed network are in coupling connection, and the lower-layer feed network is electrically connected with the first ...

Dispositif guide de courant dun faisceau de particules charge