731results about How to "Correctly designed" patented technology

The invention belongs to a metal-base film thermocouple and a preparation method thereof. The thermocouple comprises a metal substrate to be tested and a NiCrAlY alloy transitional layer arranged on the top face of the metal substrate, wherein a metal aluminum layer, an AlN layer, an AlN ceramic insulation layer, a thermocouple film electrode assembly and an aluminum oxide protective layer are formed on the transitional layer in turn. The production method comprises: processing the metal substrate to be tested; preparing a composite substrate with the NiCrAlY alloy transitional layer; precipitating metal aluminum; nitriding the aluminum; sputtering and depositing the AlN insulation layer; and setting the film thermocouple group and covering the aluminum oxide protective layer. In the invention, the AlN ceramic material with high coefficient of heat conductivity and high insulating performance is used as the insulation layer, so the temperature difference between the metal substrate and the surface of the insulation layer and the thickness of the insulation layer are reduced considerably; and thus, the metal-base film thermocouple has the characteristics of effectively reducing measurement error, improving the consistency between the temperature measured by the thermocouple and the actual temperature of the metal substrate to be tested, improving reliability, providing accurate and reliable basis for the design of turbine engines, and the like.

The invention provides a method for developing a mung bean simple sequence repeat (SSR) primer based on transcriptome sequencing. The method comprises the following steps: obtaining a set of mung bean genome-wide transcription, and forming a sequence database; splicing sequencing sequences into a transcriptome by Trinity; taking the longest transcript in each gene as Unigene; carrying out bioinformatics analysis of a Unigene sequence; carrying out SSR detection on the Unigene by adopting MISA1.0; carrying out SSR primer design by using a Primer 3, and carrying out SSR primer polymorphism identification. 13134 pairs of SSR primers are successfully designed by application of the method; 50 pairs of primers are randomly selected to verify 8 parts of mung bean deoxyribonucleic acids (DNAs) from different countries, wherein 32 pairs of polymorphic primers are formed in all; the mung bean materials with different geographical origins can be distinguished by using the 32 pairs of SSR primers. The method disclosed by the invention is convenient, fast and accurate, and low in cost, and a new thought is provided for development of the mung bean SSR primer.

The invention belongs to the technical field of aircraft manufacturing and relates to a modeling method for a two-dimensional variable-curvature process model of a section bar part. Through dispersing a contour line, the contour line is dispersed into a plurality of line segments and arc segments. By adopting finite element simulation, the recurrent magnitude of every dispersed segment is calculated; a compensated part contour curve is obtained through multiple iteration compensation; and the part contour curve is used for defining the process model of the part. The modeling method for the two-dimensional variable-curvature process model of the section bar part has the beneficial effects the process model of the section bar part can be rapidly and accurately designed, and a design used for a stretch bending mould is provided to craft personnel.

This invention provides a test method for one cavity multiple modes broad-band multiple points microwave medium multiple dielectric constants. By designing and producing a "clean" multiple frequency points, high Q cylindrical test resonance chamber of broad band and internal mould type, the method finishes identifying each target mode in the hollow resonator, thereto obtain the equivalent "cavity dimensions" of the required mode in the cavity and zero load quantity factor Q0. As for the resonantor loaded with medium, it uses test results by modes necessary for sublevel to compute frequencies of each interfered target mode finishing automatic search of resonate frequency of different modes after being interfered to test the resonate frequency of sample after loading and zero load quality factor Q0, finally, finishing test to multiple dielectric constants of different frequency according to the tested data.

The invention provides a new, small-size, wide-band gap electromagnetic band gap structural material, and the manufacturing method prints special metal pattern on microwave medium material plate by PCB process, where the size of the pattern is determined according to the applied frequency range. The electromagnetic band gap structural material can be used in antennas, filters, resonators, and other microwave devices, to improve their performance.

The extrusion apparatus for preparing superfine crystal block material has one structure comprising a die holder, a connecting seat, a conic die case, a conic die core, a wedged extruding rod with reduced extrusion force to avoid cracking of the block, a turning unit, a square vertical channel, a square horizontal channel and a product outlet. The product has high crystal grain fining and smooth surface, and the extrusion apparatus has simple structure, excellent mechanical performance, easy installation and use, and no pollution.

The invention provides a stretch-bending process model correction method based on workpiece three-dimension scanning. The stretch-bending process model correction method based on the workpiece three-dimension scanning comprises the steps of (1) carrying out comparison on a scanning model contour line of a fetched workpiece and a discrete design model contour line, obtaining the distance between every two endpoints of each section, (2) calculating the radius value of each discrete section of the scanning model contour line, carrying out difference calculation between the radius value of each discrete section of the scanning model contour line and the radius value of each subsection circular arc of the design model contour line to obtain the compensation values of subsection circular arcs of an existing process model contour line to obtain a corrected process model contour line, and (3) using the CAD software to carry out scanning on the corrected process model contour line to obtain a corrected process model. The stretch-bending process model correction method based on the workpiece three-dimension scanning carries out correction on the resilience value of numerical simulation calculation on the basis of the workpiece three-dimension scanning, solves the problem of errors generated by process model definition on the basis of numerical simulation, reduces manpower and material resources consumed by manual shape correction, analyzes the generation positions and the magnitude of the forming errors through comparison between a workpiece three-dimension scanning model and a design model, and can rapidly and accurately modify the process models of sectional material parts.

The invention discloses a modeling optimization method based on a multilayer shuttle vehicle automatic storage system. The modeling optimization method includes the steps that the motion law of elevators and shuttle vehicles as well as various sorts of service time in the operating process of the elevators and the shuttle vehicles are determined; the number of layers of the multilayer shuttle vehicle automatic storage system, the depth of a roadway, the height of each single-layer storage rack, the width of each single cargo box, the speed and accelerated speed of each elevator, the speed andaccelerated speed of each shuttle vehicle, the cargo collecting and putting time at a time and the delivery task detailed information parameters are extracted, and a mathematical model of the multilayer shuttle vehicle automatic storage system is established; a mixed integer programming model by using obtainment of the shortest cargo collecting total time as the target is established; and a GUROBIlinear programming solver is used for solving the mixed integer programming model, and accordingly the shortest cargo collecting total time and the optimal cargo collecting sequence of the system canbe obtained. By adoption of the modeling optimization method, the system performance under various storage racks and equipment configurations can be estimated quickly, and decision support is provided for accurately designing the system, increasing the equipment utilization rate and reducing the operating cost.

The invention relates to a calculation method of ultimate bending capacity of reinforced severe damage beam with fiber reinforced polymer, comprising the steps of the geometrical relationship that S1, going through the cross section of beam strain, the material stress- strain relationship, the establishment of mechanical model, calculating the relative compression zone height; S2, reducing the compressive strength of the concrete in the compression zone; S3, adopting the axial compressive strength of the concrete after the reduction, according to the above steps to recalculate the height of the compression zone; S4, calculating the ultimate bending moment; and S5, calculating the ultimate bending load capacity. The invention provides a prediction for the design and research of the ultimate flexural capacity of the RC beam with a single section of the reinforced concrete with a single rib, and saves the measured cost and a lot of test timeso as to make the ultimate bearing capacity of the reinforcement structure design more accurate;accurately calculating the ultimate bending capacity of the reinforced beam, which makes the engineering and technical personnel more accurate and convenient to control the loading process of the fiber reinforced concrete beam; The method has great economic benefit.

The invention relates to a dual clutch (1) having two friction clutches (3,4), having a central pressure-exerting plate (5) and having two pressure plates (24,25) which are axially movable relative to said pressure-exerting plate (5) with the interposition of the friction linings (28,29) of two clutch disks (26,27), which mesh with in each case one gearbox input shaft (21,22), of actuating devices (32,32a). Here, the pressure plates (24,25) are advantageously acted on by transmission elements (30,42,69,70) by the actuating devices (32,32a) directly without a lever action. Furthermore, for the cooling and lubrication of the actuating devices (32,32a) and the transmission elements (30,42,69,70), an annular chamber (58) can be formed which has an increased fluid volume.

The invention relates to a single chip silicon SOI high temperature low drift pressure sensor in the field of sensitive sensing technology. Wherein the four voltage-sensitive resistances which form the Wheatstone bridge adopt SOI material; it adopts the interval compensation and the outer compensation technology of partial interval resistance of the SOI resistance network to make the zero point temperature drift below 1X10-6Vs / íµ; it adopts girder-film-island structure to improve the sensibility and linearity of the sensor; it adopts polysilicon with thick boron and the aluminum lead wire covered the lead wire surface to form the interval lead wire of the sensor; it adopts thick boron automatically end technology to make high sensibility high temperature low drift pressure sensor.

The invention discloses an analysis method for engine crankshaft system torsional vibration. The analysis method comprises the following steps: (1) collecting a key parameter of an engine, and constructing a three-dimensional model of a crankshaft system; (2) establishing a parametric equivalent model for the engine crankshaft system torsional vibration; (3) carrying out a torsional vibration calculation to an engine crankshaft system under an action of different revolving speeds and different combustion pressures; and (4) analyzing a result. In an engine designing process, the crankshaft system torsional vibration is analyzed and calculated to quickly confirm an engine crankshaft system torsional vibration situation under various operation working conditions by the analysis method, and an optimal design of the crankshaft system can be realized through parameter optimization. The analysis method for the engine crankshaft system torsional vibration can precisely analyze, the test efficiencies of the engine can be improved, a great quantity of test cost can be safe for a later stage, a direction is pointed for a crankshaft system design, and especially, an effective guidance is provided for matching with the design of a dual-mass flywheel system.

The invention discloses a virtual simulation method and system of a camera motion control system in film shooting, and belongs to the technical field of camera control. The method and the system cause a film creator to more visually regulate the motion track and the picture sequence of the camera according to own operation habits and visual angles, picture planning and the like in the early stage of film shooting, utilizes three-dimensional virtual simulation to design a satisfactory lens effect for the creator, automatically calculates the parameters of the camera motion control system which plans to be adopted, and precisely controls the space coordinates of the camera lens so as to improve the interaction of the camera motion control system, save the shooting cost of the lens which uses the camera motion control system and greatly improve the digital manufacture quality and efficiency of the film.

The invention discloses a three-phase modularized multi-level converter for VSC-HVDC (voltage source converter-high voltage DC) and a carrier phase-shifting modulation method of the converter and belongs to the technical field of level converters. The three-phase modularized multi-level converter comprises three phase units and a first voltage capacitor, and two of the phase units are connected with each other at first and connected with the first voltage capacitor and the rest phase unit in parallel; each phase unit comprises two bridge arms connected in parallel, each bridge arm comprises a reactor and N submodules. For N+1-level three-phase modularized multi-level converter, each bridge arm comprises N cascade submodules, N groups of two-level triangular carriers are adopted and phases thereof are sequentially staggered by 2 pi / N degrees. The three-phase modularized multi-level converter cannot generate extra switching loss and loss of the converter caused by power devices can be conveniently estimated.

The invention discloses a double-frequency Wilkinson power divider. Impedance conversion is realized by using two sections of transmission lines, and the characteristic impedances of the two sections of transmission lines are respectively Z1 and Z2; an isolating resistor R is arranged between two output ports, the two output ports are respectively connected with one segment of open-circuit microstrip line in parallel, and the characteristic impedance of the open-circuit microstrip line is Z3. The isolation degree is increased by respectively connecting the two output ports with one segment of open-circuit microstrip line, and the required impedance is accurately realized by using the open-circuit microstrip lines. The invention has the advantages of small size and double-frequency operation; the required impedance is accurately realized by using the open-circuit microstrip lines, the analytical design formula of the double-frequency power divider is deducted by using odd-even mode analysis and double-frequency analysis, and the design is accurate; the power divider working in any two or more than two frequency ranges not only effectively reduces circuit size, but also reduces insertion loss and improves noise characteristics.

The invention provides an amplitude phase calibrating device for semi-closed loop coupled phased array channels. Each channel of an active phased array plane is coupled to one waveguide coupler, thereby forming a coupling loop. Two ends of the coupling loop are connected with a signal receiving and transmitting module and a load. When a channel of the active phased array plane transmits an amplitude phase, a transmission system of the active phased array plane transmits a signal, and the signal receiving and transmitting module of the coupling loop receives the signal. When the channel of the active phased array plane receives the amplitude phase, the signal receiving and transmitting module of the coupling loop transmits a signal, and a system of the active phased array plane receives the signal. The transmitted or received amplitude phase information is fed back to a beam control dispatcher of an array phased array radar for amplitude phase calibration. The device not only can be used for the amplitude phase calibration of a phased array before assembly, also can be used for channel detection and amplitude phase calibration after assembly, enables the waveform design of the phased array to be more accurate, and enables the performance of the array phased array radar to be better.

The invention discloses a 3D model simulation method specific to contaminated site remediation. The method comprises the following steps: 1) determining specific pollutants according to site investigation, and performing distribution of testing sites, sampling and analysis in a suspected contaminated area; 2) combining concentration analysis data of the specific pollutants serving as sample data with a geographic position on a GEO (Geographically referenced) sensor array through a computer data acquisition module to form an integrated data file, and uploading the integrated data file to a database; 3) performing reliability and error analysis on integrated data through analytical calculation in order to perfect data, and interpolating discrete sample point data of the integrated data through a conditional simulation method to form continuous surface data; and 4) forming an interactive 3D view to be output by the continuous surface data in conjunction with a 3D visualization technology in order to form a real-time three-dimensional contamination status map. Through adoption of the 3D model simulation method, an advanced sensing technology, a computer technology, a wireless transmission technology and the like are applied to the soil / underground water remediation industry, and meanwhile the remediation efficiency of an in-situ remediation process is increased.

The invention discloses a double-volute hydraulic design method based on an RSM model. The design method comprises the steps of 1) solving double-volute initial hydraulic geometric parameters based on a velocity coefficient method; 2) performing optimization solving on double-volute key geometric parameters by adopting an RSM-based adaptive sequence algorithm; 3) performing parameterization automatic modeling based on a CATIA macroprogram, and outputting to obtain a three-dimensional double-volute model; 4) by adopting a GridPro script file to output a grid file used for numerical value calculation; 5) automatically completing grid loading and boundary condition setting based on a CFX CCL language drive program to complete calculation of related data, and outputting a calculation result; 6) repeatedly executing the steps 3) to 5) to obtain a double-volute scheme with the minimum total pressure loss coefficient; and 7) taking the data obtained in the steps 1) to 6) as the double-volute design parameters to manufacture a double-volute centrifugal pump. By adoption of the double-volute hydraulic design method, the double-volute hydraulic optimization design can be realized.

The invention discloses a method for manufacturing a polarization-preserving optical fiber, which relates to the field of manufacturing of optical fibers. The method comprises the following steps of: S1, manufacturing a polarization-preserving core rod and two boron-doped stress rods by adopting a PCVD (Plasma Chemical Vapor Deposition) process, wherein the polarization-preserving rod is provided with a core and a coating layer; S2, melting the polarization-preserving rod by using a quartz casing at the high temperature of 2,000-2,200 DEG C, and finely drawing to obtain a polarization-preserving parent rod; S3, longitudinally processing a pair of symmetrical circular holes in both sides of the central line of the polarization-preserving parent rod, wherein the central lines of the circular holes and the central line of the polarization-preserving parent rod are parallel to each other and are positioned in the same plane; S4, embedding the two boron-doped stress rods into the two circular holes to construct a polarization-preserving optical fiber prefabricated rod; and S5, drawing the polarization-preserving optical fiber prefabricated rod into a polarization-preserving optical fiber in a molten state, wherein in the polarization-preserving optical fiber, the ratio of the distance between the inner edge of each boron-doped stress rod close to the core and the center of the core to the radius of the core is 2.0-4.0. The method has the advantages of simple and convenient process, low manufacturing cost, high axial uniformity and contribution to mass production.

The invention relates to an infrared thermal imaging remote monitoring device for a transmission tower. The monitoring device mainly comprises a main chassis, a circuit board, a screening box, a solar panel, a storage battery, a wind speed and wind direction sensor, a video camera, an infrared thermal imager, a 3G wireless communication transmitting antenna, a 3G wireless communication receiving antenna and a temperature and humidity sensor, wherein the wind speed, the wind direction, the environment, the temperature and the humidity and the thermal image situation of a connecting piece on the tower and dynamic images on the tower are synchronously transmitted to a ground industrial control computer; monitoring data is displayed and printed; the operating situation of the transmission tower is judged; and information-based, image-based and digital transmission monitoring on the transmission tower is realized. The device has the characteristics of advanced design, safety, stability, rapidness, accuracy, synchronization and reliability, and is a very ideal remote monitoring device for a high-voltage transmission tower. The device can also be used for monitoring wireless communication and television broadcasting towers.

The invention provides a hybrid design method for a radio frequency coil, belonging to the technical field of magnetic resonance imaging, and comprising the following steps of: (1) establishing a three-dimensional human model in an FDTD (Finite Difference Time Domain); (2) presenting a target field in an internal target tissue region of a human load according to the magnetic field distribution requirement; (3) from the target field, performing a back calculation in consideration of the human load to obtain an electromagnetic field distribution; (4) based on the electromagnetic field distribution obtained in Step (3), re-establishing a target field defined in an inverse method; and (5) obtaining the current density on the surface of the coil according to the new target field. The method introduces the equivalence principle into a human model load for analysis design, considers the interaction relationship between the human load and the coil and effectively eliminates the interference influence, so that the coil is designed more precisely.

An electromagnetic motor comprises a stator (11) and a rotor (12). One of the stator or the rotor has windings, or both have windings. At least one of the windings is made of a printed circuit (13). By using the printed circuit as a winding, not only the time and the copper material for winding a winding with copper wires could be saved, but also the accurate line design could be achieved, which is beneficial to miniaturize the electromagnetic motor.

The invention belongs to the field of biological medicine and specifically discloses a nucleic acid-drug conjugate based on phosphorothioate modified nucleic acid, a drug delivery system and a preparation method thereof. Phosphorothioate groups in the phosphorothioate modified nucleic acid react with groups modified on drug molecules and capable of generating electrophilic reaction with the phosphorothioate groups, so as to form the nucleic acid-drug conjugate; the nucleic acid-drug conjugate can be self-assembled into drug-containing nano-carriers in various forms for drug delivery, in the manner of selecting different nucleotide sequences including functional nucleic acid; compared with the prior art, the invention has the advantages that the nucleic acid-drug conjugate can be acquired through a simple solid-phase synthesis technology, grafting sites and assembling forms of drug molecules on nucleic acid skeleton can be accurately controlled and the method has universality to chemotherapeutic drugs; according to the nucleic acid-drug conjugate, the drug delivery system, the preparation method and the application thereof disclosed by the invention, physicochemical properties and in vivo distribution properties of chemotherapeutic drugs are obviously improved, therapeutic effect thereof can be promoted and combination therapy of gene therapy and chemotherapy can be realized.

The invention provides a design method and a system for a cast-in-place reinforced concrete pipe ditch, wherein size parameters of the reinforced concrete pipe ditch are acquired; a three-dimensional model of the reinforced concrete pipe ditch is established; according to finite element theories, the model is converted into a two-dimensional model of the reinforced concrete pipe ditch for finite element computation; any cross section in the two-dimensional model of the reinforced concrete pipe ditch is extracted; according to finite element computation results, positive stress and shear stress of each node on the extracted cross section are obtained; the bending moment, axial force and shear force values of an equivalent column cross section of the extracted cross section are computed; reinforcement computation is conducted to the extracted cross section; reinforcement computation results of the different cross sections are computed; and design results of the cast-in-place reinforced concrete pipe ditch are obtained. During the whole course, the three-dimensional model is converted into the two-dimensional model for processing based on the finite element theories; finite element computation is conducted to the two-dimensional model; the bending moment, axial force and shear values of the equivalent column cross section of the extracted cross section are obtained; and then the reinforcement computation is conducted to the extracted cross section. In this way, the cast-in-place reinforced concrete pipe ditch can be designed accurately.

The present invention belongs to the technique category of the medical instrument, relates to a tectorial conformal radiate NiTi alloy vascular inner rack which is implanted to the blood vessel of the human body. To settle the problems of that the existing vascular inner rack can not restrain the growth of the tumour and the thrombus is easy to form, etc., the bracket used by the invention is self-expanding NiTi alloy vascular inner rack, a layer of polycarbonate type polyurethane membrane is covered at the inner wall, the antineoplastic medicine is spraying-coated to the inner surface of the membrane, and the active particles which are used for the inner radiating of the tumour are inserted at the outer bracket of the membrane according to the conformal property. The NiTi alloy vascular inner rack applied by the invention can effectively expand and support the blood vessel; the novel film forming material polycarbonate type polyurethane has an excellent bioavailability; the active particles for the conformal radiotheraphy outside the membrane are inserted to the bracket with a simple and convenient double-buckle mode, the growth surround the blood vessel area is effectively restrained and the radioactive side injury of the normal tissue is reduced. The invention has the advantages of easy making, low cost, strong innovation and wide market prospect.

The invention discloses a method for constructing an artificially natural slope-type terrace land in the Three Gorges reservoir area. The method comprises the following steps of: (1) calculating rill erosion critical slope length of a gentle slope by utilizing a rill erosion generation critical value and a tillage erosion theory; and (b) sequentially constructing sand-blocking terrace banks along the slope according to interval positions larger than the rill erosion critical slope length, wherein the bottom surfaces of all the sand-blocking terrace banks extend into soil below an original slope line, the top surfaces of all the sand-blocking terrace banks are higher than the original slope lines, and between every two adjacent sand-blocking terrace banks, the top surface of the next-stage sand-blocking terrace bank and the bottom surface of the last-stage sand-blocking terrace bank are located on the same isohypse line. The sand-blocking terrace banks are ridge-type sand-blocking terrace banks or simple civil-engineering-type sand-blocking terrace banks or plant-fence-type sand-blocking terrace banks. The method has the characteristics of low cost, easiness for popularization, high benefit and the like.

The invention relates to a design method and a device of structural parameters of major and minor semi axes of an elliptical race ball bearing. The design method comprises the steps of firstly, calculating radial displacement, axial displacement and corner displacement of an inner ring of the bearing; calculating normal contact loads of all contact positions according to the obtained displacements to determine the contact load of a rolling body with the maximum load and the maximum contact stress received by the bearing; drawing a bearing static load curve through adopting the maximum contact stress as the index, and determining a circle radius coefficient t and a design contact angle according to limit load parameters of the bearing; and finally, calculating a major semi-axis and a minor semi-axis of an ellipse according to the obtained design contact angle, the circle radius coefficient and the radius of a steel ball. According to the design method, the major semi-axis and the minor semi-axis of an elliptical race can be quickly and accurately designed through the process, the problem that the selection of the major semi-axis and the minor semi-axis of the bearing elliptical race has no reference is solved, and reference can be provided for judgment of utilization conditions of external loads according to the adopted static load curve design drawing method.

The invention discloses a method for designing groove curvature radius coefficient of a four-point contact ball bearing. The method comprises the following steps of: firstly, calculating normal contact load and maximum contact load of steel balls and inner and outer roller paths according to external applied load; secondly, establishing a static bearing curve; and thirdly, designing the groove curvature radius coefficient of the bearing by utilizing the static bearing curve. According to the method, the curvature radius coefficient of the four-point contact ball bearing groove can be accurately designed, the present situation that the groove curvature radius coefficient is free of design basis is changed, and the static bearing capacity of the bearing is fully satisfied.

The invention discloses a flexible orthopedic shoe pad and a preparation method thereof. The method comprises the following steps: establishing a shoe pad model having foot bottom morphology accordingto foot data; by acquiring foot evaluation index data, foot bottom pressure distribution data and foot appearance scanning data, by using a corresponding optimization relation between key shoe-pad appearance parameters and the foot evaluation indexes and a corresponding relation between material performance distribution of the shoe pad and foot bottom pressure distribution, adjusting the outer contour model of the orthopedic shoe pad and the mechanical property of the material; and preparing the flexible orthopedic shoe pad by adopting a 3D printing process. The shoe pad is filled by virtue of a porous structure with adjustable mechanical property of the material, and finally the personalized porous shoe pad model is printed, so that the shoe pad can bring the optimal comfort level to a wearer and is convenient and rapid.

The invention discloses a sparse beam pattern comprehensive designing method. The method specifically includes: step 1, in an actual array signal system, according to designing requirements, building a weight optimization objective model taking p norm (0<p<2) as sparse constraint, and setting constraint conditions of main lobe width, ripple wave width and side lobe limitation according to requirements; step 2, after the step 1 is completed, aiming at a non-convex optimization model, adopting an alternating method multiplier method to iteratively sparse weight coefficient w; step 3, utilizing the sparse weight coefficient w acquired in the step 2, and combining computer simulation software to make beam pattern according to designing requirements. By the method, the problems of boundedness and inaccuracy in the prior art are solved, and complexity of an actual array system and actual application cost are lowered.