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43results about How to "Efficient Transmission" patented technology

Method for high efficient transmission of vector data on the basis of pixel non-destructive compression of ordered point set

The invention discloses a method for high efficient transmission of vector data on the basis of pixel non-destructive compression of an ordered point set. The transmission of pixel non-destructive compression of the ordered point set is based on characteristics of a rasterization graphic device as well as a visualized process of the vector data. According to the invention, a fixed-precision model with equal peak pixels is constructed; a relation between pixel losslessness of the fixed-precision model and an integer digit of a binary system on the binary system condition is established by a relation established between the model and binary system storage of an integer in the computer and a demand assignment algorithm of a binary bit of a peak coordinate is designed; a high efficient pixel-loss compression coding/decoding scheme of an ordered point set is established according to the above-mentioned algorithm; and on the basis of the compression coding technology of the ordered point set, an OGC simple element model is transformed and a high efficient vector transmission technology that meets GIS application is designed. According to the invention, the method can be applied to transform traditional GIS data transmission mechanism; on the premise that user interaction and a visualized effect are not affected, a network bandwidth is effectively utilized and a response ability of a system is improved.
Owner:NANJING NORMAL UNIVERSITY

Special mechanism for automatically conveying high-temperature saw bit

The invention discloses a special mechanism for automatically conveying a high-temperature saw bit. The mechanism comprises a base, an upright post and the like, wherein the upright post is fixed on the base, a rotating crossarm is connected with the upright post and can rotate around the upright post, and a slider fixed on a conveyer belt is driven to move on a sliding guide rail by a sliding driving motor which is fixed on the rotating corssarm through pulley transmission; actions of a movable paw of clamping and loosening a high-temperature sheet are realized through the rotation of a clamping driving motor fixed on the slider; and the rotating driving motor is fixed on the base, an output shaft is provided with a pinion which is meshed with a circular arc rack fixed on the rotating crossarm to drive the rotating crossarm to rotate around the upright post, and a positioning pin on the rotating corssarm slides on the rotating guide rail during rotating so as to realize the function of rotatably conveying the high-temperature saw bit. The mechanism can realize the high-speed high-efficiency conveying of the high-temperature saw bit, eliminates adverse influence such as the pressing precision reduction and quality reduction of the saw bit caused by overlarge temperature drop in the conveying process, and has the advantages of high efficiency, high speed, accuracy and reliability.
Owner:NANJING UNIV OF SCI & TECH

Combined method of arc ion plating and twin target bipolar high-power pulsed magnetron sputtering

The invention discloses a combined method of arc ion plating and twin target bipolar high-power pulsed magnetron sputtering, and belongs to the technical field of material surface treatment. The method aims to solve the problem of large particles due to use of low-melting-point pure metal (like aluminum) or multicomponent alloy materials and non-metallic materials (like graphite) in arc ion plating and the limitation of semiconductor material silicon, and discharge arcing in the unipolar high-power pulsed magnetron sputtering technique and the limit in using of high-melting-point and difficult-to-ionize target materials (like zirconium) are eliminated. The method includes the steps that first, workpieces are placed on a sample table inside a vacuum chamber and connected with related equipment; second, thin film deposition is performed, working gas is introduced when vacuumizing is executed to 10<-4> Pa, and a film coating power supply is switched on; and the large-particle defect in arc ion plating is overcome through high-power pulsed magnetron sputtering, the high-melting-point and difficult-to-ionize materials are ionized through arc ion plating, twin targets generate multi-component plasma and further adjust the content of the plasma in a thin film, plasma energy is regulated through a grid bias power supply, and accordingly the thin film can be prepared.
Owner:魏永强

Self-driven solar blind ultraviolet detector with organic-inorganic composite structure and preparation method thereof

The invention belongs to the technical field of photoelectric detectors, and concretely relates to p-n junction self-driven solar blind ultraviolet detector based on an organic-inorganic composite structure and a preparation method thereof. The structure of the device includes a substrate, a n-type gallium oxide micron wire, a p-type organic conductive polymer nano film, and metal contact electrodes prepared on the p-type and n-type layers. The characteristics of the self-driven solar blind ultraviolet detector with the organic-inorganic composite structure are that a core-shell structure is formed by the p-type organic conductive polymer nano film and the n-type gallium oxide micron wire, and so the self-driven solar blind ultraviolet detector has good photoelectric characteristics and deep ultraviolet selectivity when operated under zero bias voltage. The device solves the problem that a p-type material in a conventional inorganic semiconductor deep ultraviolet photodetector of a p-nstructure cannot be controllably prepared. The detector of the invention is simple in preparation process and has great application prospect in the field of solar blind ultraviolet detection.
Owner:HARBIN INST OF TECH

Multi-carrier-disc wafer transfer equipment and system

The invention relates to the field of wafer processing, and provides multi-carrier-disc wafer transfer equipment and system for solving the problems that by adopting polishing head rotation and carrier table linear movement for wafer conveying, wafers are prone to being contaminated due to process switching between different polishing tables, the conveying flexibility is limited by linear movementdesign, and the conveying efficiency is low. According to the multi-carrier-disc wafer transfer equipment, a drive control mechanism can drive and control a circular track to sequentially transfer and stop all wafer carrier discs charged at a cleaning station to one of polishing stations, and discharging and charging are completed at the polishing stations; and the drive control mechanism can also drive and control the circular track to transfer and stop all the wafer carrier discs charged at the polishing stations to the cleaning station, and discharging is completed. Through the transmission mode, multi-step complex processes can be achieved, and the effects that each wafer is independently polished at the corresponding polishing station and efficiently transferred between different transfer stations are achieved. The multi-carrier-disc wafer transfer system comprises the multi-carrier-disc wafer transfer equipment.
Owner:BEIJING SEMICON EQUIP INST THE 45TH RES INST OF CETC

Expendable seawater measurement device

The invention discloses an expendable seawater measurement device which comprises a measuring probe and a launcher, wherein the launcher comprises a fixing plate, a supporting plate, a spindle, a pull rod and a junction box; a handle, a rolling bearing and an eccentric wheel are mounted on the spindle; the rolling bearing is contacted with the supporting plate; one end of the pull rod is mounted on the fixing plate, and the other end of the pull rod penetrates through a pull rod guide slot of the supporting plate and is connected with an eccentric shaft of the eccentric wheel; the junction box is positioned between the fixing plate and the supporting plate; a contact pin used for being contacted with a metal contact on the measuring probe is arranged on a side face, which faces the fixing plate, of the junction box; a tightening spring is arranged on a side face, which faces the supporting plate, of the junction box; and the junction box is connected with the supporting plate through the tightening spring. According to the expendable seawater measurement device disclosed by the invention, the acquired data can be effectively transmitted in real time when the measuring probe is reliably put in, and the expendable seawater measurement device is simple in structure, light and reliable and is conveniently operated and used on deck by scientific research personnel.
Owner:OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI

Method and system for transmitting images through unmanned aerial vehicle, unmanned aerial vehicle and receiving equipment

The invention discloses a method for transmitting images through an unmanned aerial vehicle. The method comprises the following steps: receiving a connection request from receiving equipment through the unmanned aerial vehicle to obtain a link address of the receiving equipment; acquiring a first image through the unmanned aerial vehicle; uniformly partitioning the first image to obtain a plurality of second images; converting the plurality of second images into third images of the same sizes one by one, and transmitting data of the third images to the receiving equipment in sequence through the link address; restoring the third images after the receiving equipment receives the data of the third images in sequence, and performing non-linear conversion on the restored third images to obtain the second images; and splicing the first image according to the second images. Through adoption of the method, transmitted images can be converted in blocks, so that the transmission efficiency is increased effectively, and the transmission quality is improved effectively. Correspondingly, the invention also provides an unmanned aerial vehicle, receiving equipment and a system for transmitting images through the unmanned aerial vehicle.
Owner:宁波市沃特测试技术服务有限公司

Hydraulic power device of dual-axis shearing type crusher

The invention discloses a hydraulic power device of a dual-axis shearing type crusher, relates to the technical field of hydraulic power systems, and aims to solve the problem that an existing hydraulic power system is not beneficial for heat dissipation and maintenance, and is easily polluted. According to the technical scheme, the key point is that the hydraulic power device comprises a closed type hydraulic station and an external pipeline, wherein a hydraulic motor is connected to the closed type hydraulic station through an external pipeline; the closed type hydraulic station comprises acabinet type box body with a plurality of shutters on four side walls, a square tube beam, and an oil tank assembly, wherein an air cooler is mounted on the top of the cabinet type box body, the square tube beam is arranged on the middle part of the cabinet type box body for dividing the cabinet type box body into an upper box body and a lower box body from top to bottom; the oil tank assembly isborne on the square tube beam, and is positioned in the upper box body; and a motor pump group, an energy accumulator group and a flushing valve group are arranged in the lower box body. The motor pump group comprises a motor, a main pump and a gear pump, the main pump and the gear pump are positioned below the oil tank assembly, and the motor is positioned at one side of the oil tank assembly. The hydraulic power device facilitates heat dissipation and maintenance, and has a dustproof function.
Owner:SUZHOU JONO RECYCLING RESOURCES EQUIP

Binding machine

The invention discloses a binding machine. The binding machine comprises a driving part, a transmission part, a binding part and a shearing part. The transmission part is driven by the driving part, and binding and shearing of a binding wire are completed through forward and reverse rotation of the transmission part; the binding part is in transmission connection with the transmission part, and inthe binding part, the binding wire is wound to form a binding coil; and the shearing part comprises a shearing transmission part and a shearing knife which are in transmission connection with the transmission part, and the shearing knife is driven by the shearing transmission part to shear off the binding coil from the binding wire. The binding part can quickly bind plant vines, and the arrangedbinding part can change the conveying path of the binding wire, so that the binding wire used for binding can be automatically wound to form a hanging ring shape to be wound on the surfaces of the vines, and binding is achieved; the binding efficiency is improved, and the labor intensity is reduced; and the arranged shearing part can be used for quickly shearing the binding wire, so that the working efficiency is improved, and the situation that scissors or other sharp edges are manually taken for shearing in the traditional process is avoided.
Owner:NINGBO XINYI WEIYE IMPORT & EXPORT CO LTD

Microwave and terahertz wave all-metal hyperbolic metamaterial antenna and implementation method thereof

The invention discloses a microwave and terahertz wave all-metal hyperbolic metamaterial antenna and an implementation method thereof. The all-metal hyperbolic metamaterial antenna comprises metal meander lines and supporting columns, wherein each metal meander line is in a square waveform shape, the multiple metal meander lines are periodically arranged in the y direction to form a metal two-dimensional meander line plane, and the multiple layers of metal two-dimensional meander line planes are periodically arranged in the x direction to form the all-metal hyperbolic metamaterial antenna. According to the invention, the loss of the whole structure can be effectively reduced, the transmission rate on incident traveling waves is also extremely high at the same time, and the TM polarized incident wave transmission rate exceeds 80% when the incident angle is less than 50 degrees; meanwhile, due to lack of a solid filling medium, the antenna can also work in some special scenes, such as high-power occasions and threshold-free Cherenkov radiation requiring free movement of electrons; and the antenna is not limited to a microwave band, and a low-loss terahertz all-metal hyperbolic metamaterial antenna can also be designed by applying the method in a terahertz band with extremely high dielectric loss.
Owner:PEKING UNIV
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