172results about How to "Achieve the design purpose" patented technology

3780 points discrete Fourier transform processer system includes 63 points DFT module, complex multiplicator moduel, line and column crossing processor module and 60 points DFT module to be connectedin sequence according to the calculation, of which the position of each module in the abovelisted modules can be interchangeable. The processor is structuralized by two modules in front and back to share one FPGA chip and two FPGA chips being connected by two-part RAM. According to the calculation and connecting sequence 63 point DFT module will be formed by 7 point (or 9 point) DFT module-label mapping module under 63 point DFT prime factor calculation-9 point (or 7 point) DFT module, 60 point DFT module can be also decomposed similarly as 3X20, 4X15, 5X12 point DFT as well as 12 point and 15 point DFT module can be decomposed as 3X4, 3X5 point DFT module. The whole 3780 point DFT processor needs only two FPGA chips of three hundred thousand gates for saving a great deal of the cost.

The invention discloses a shelf satellite borne transponder. The shelf satellite borne transponder comprises a radio frequency transceiver module, an intermediate frequency processing module, a secondary power supply module, a duplexer, a relay receiving filter; wherein the radio frequency transceiver module is used for receiving and transmitting radio frequency signals to the ground or to the relay; the intermediate frequency processing module is used for the A / D conversion of received signals, the D / A conversion of reference signals, the acquisition and tracking of pseudo codes and carriers,and the signal processing of channels; the secondary power supply module is used for power supply filter, voltage conversion and transponder switch execution; the diplexer is used for the filtering processing of ground measurement and control radio frequency receiving signals and radio frequency transmitting signals; and the relay receiving filter is used for preselected filtering of relay measurement and control radio frequency receiving signals. According to the shelf satellite borne transponder disclosed by the invention, a unified hardware platform is adopted; and the purposes of general-purpose design, mass production without considering the models and shelf supply can be achieved through changing different software settings and replacing the diplexer and relay receiving filter withdifferent frequency points.

The present invention relates to a drivage temporary supporting device which belongs to the drivage supporting machinery and solves the problems that a top plate is delaminated and collapsed easily if the unsupported roof distance of a new drivage is more than two meters due to the geological structural development of the top plate of a mine. The drivage temporary supporting device is characterized in that the supporting device is installed at the telescopic boom of a roadheader by a fastening ring. The upper ring edge and the lower ring edge of the fastening ring are provided with connecting boards for installing and fixing. The bottom of the lower ring of the fastening ring is provided with a support pedestal. The two ends of the support pedestal are symmetrically and vertically connected with lifting hydraulic jacks. The tops of a pair of lifting pillars of the hydraulic jacks are provided with saddles. The connecting boards which are used for fixing the hydraulic jacks are symmetrically arranged at the two sides of a wall which is vertical to the upper ring arc line of the fastening ring. Shafting brackets are symmetrically arranged at the arc line at the front part of the upper ring of the fastening ring vertical to the axial line of the telescopic boom. The shafting brackets are matched with an engaging lug at the back end of a bracket and are connected by a pin roll. A whiffletree is arranged at the front section of the face of the bracket which is connected with the fastening ring by the pin roll. A bracket slot is arranged at the inner side of the whiffletree. A hollow frame is dug at the middle section of the bracket, and the back of the bracket is provided with a support leg.

The invention discloses a hygrostat water tank comprising a water tank body, a dehumidifying float, a humidifying float, a sealing ring, an ultrasonic atomizer and a steam-guiding pipe. The water tank body is internally provided with water tank separating ribs which divide the water tank body into a left tank body and a right tank body, and a water tank communicating passage is arranged between the left tank body and the right tank body; the dehumidifying float is arranged at the upper part of the right tank body and upwards triggers a dehumidifying water level switch of a hygrostat when the right tank body is full of humidifying water; the humidifying float is arranged at the upper part of the left tank body; the sealing ring is arranged in the left tank body and is arranged at the upper water outlet of the water tank communicating passage; the ultrasonic atomizer is arranged in the left tank body and atomizes the water in the left tank body into steam when the hygrostat is started; and the steam-guiding pipe is connected with the ultrasonic atomizer to guide out the steam. On the basis, the invention also discloses the hygrostat sharing the hygrostat water tank. The invention is beneficial to realizing the requirements of the product for compact structure, simple appearance, reasonable cost and convenient operation.

The invention provides a halogen filament and the making method thereof, as compared with traditional anti-drooping filament, W-Re alloy wire has high recrystallization temperature and greater crystal grain length-width ratio and contains K, Al and Si doping agents, and the crystal grain length-width ratio is greater than 15; and the content of Re in the alloy is 0.4-0.8mass%. And the concrete making process comprises: preparing alloy powder with Re content of 0.4-0.8mass%, and preparing W-Re alloy sintered bar by isostatic pressing, presintering and vertical sintering; making the sintered bar into W-Re alloy wire by rotary swaging and drawing and coiling the W-Re alloy wire into filament. And the filament has stable crystal grain structure and can better apply to halogen W lamps.

The invention discloses an automatic motion massage chair, which is mainly composed of a massage chair body and a moving platform set on the inner side of the legs. There are two swinging devices in the sleeve grooves on the left and right armrests and on the outside of the left and right outriggers. A rotating shaft with two transmission gears fixed on the inside and two reverse cranks fixed on the outer end is connected to the left and right beams. The two fixed transmission gears are connected with the chain transmission mechanism set under the front and rear end plates of the mobile platform and the two mobile foot rubbing devices and a group of automatic foot movement massagers set above the front end plate of the mobile platform. Transmission, the outer ends of the two reverse cranks fixed at the outer ends of the rotating shaft are connected with rockers, and the two reverse cranks and rockers are hingedly connected with the two swing devices outside the left and right support legs, which mainly solves the problem of general massage chairs and massage chairs. The wheelchair cannot carry out the shortcomings of hand and foot movement and self-healing at the same time.

The invention relates to a method for parallel assembly of multi-segment DNA. Choose to insert the circular or linear unit vector into the circular host or linear host to form a gene carrier, and then recover the circular or linear vector to obtain the recombined DNA genetic material. Its characteristic is that it can realize parallel and simultaneous operation of multiple pieces of DNA, thereby improving the efficiency of DNA assembly to form a new DNA structure, and preventing DNA pollution and disproportionation, ensuring the quality of assembled DNA, so that it can achieve the design purpose. The time required to assemble multiple pieces of DNA is approximately proportional to log(N). The assembly operation is carried out outside or inside the cell, so that multiple DNA molecules can be spliced ​​in any order to form a new DNA structure. It is suitable for application in the field of genetic engineering to obtain new organisms through genetic recombination.

The communication equipment includes main communication unit with microprocessor, data memory, input device and inserting slot connected to internal reader; and screen set in the main communication unit. The name card with stored relevant information is inserted in the slot, the reader can read out the information fast from the card and display them in the screen. The read information is sorted, amended and annotated in the input device before being stored in the memory.

The magnetic suspension motor for electric vehicle has rotor assembly, electromagnetic pole assembly and loop controlling unit. The rotor assembly has permanent magnet; the electromagnetic pole assembly consists of several magnetic pole coils to produce magnetic poles and the each magnetic pole coil has magnetically conducting coil seat comprising high magnetic inductivity ceramic and high magnetic inductivity silicon steel sheet; and the loop controlling unit has position sensor and loop controller. When the position sensor aligns at the geometric center of the position detecting hole, the magnetic pole coil aligns at the permanent magnet. The position sensor and the magnetic pole coil are connected to the loop controller. By means of the interaction between the electromagnetic coil and the powerful permanent magnet, the present invention can reduce the electricity consumption greatly.