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267 results about "Linear distribution" patented technology

Linear distribution (module) To define the linear distribution, you should determine 2 points or lines with respect to which the reinforcement will be distributed. The side of a distribution segment the reinforcement is positioned, depends on the segment sense. The rule of clockwise movement applies (as during reinforcement definition).

Polymer lithium ion battery and diaphragm thereof

The invention belongs to the technical field of polymer lithium ion batteries, in particular to a diaphragm for the polymer lithium ion battery. The diaphragm comprises a multihole base material, wherein an inorganic substance coating layer and an organic substance coating layer are coated on at least one surface of the multihole base material; and the organic substance coating layer is in island-type and / or linear distribution and coated on the surface of the multihole base material and / or the inorganic substance coating layer. Compared with the prior art, due to the inorganic substance coating layer, the diaphragm can keep relatively high heat stability and mechanical performance, so that the lithium ion battery has high safety performance; the organic substance coating layer has high imbibition swelling capacity, and an interface has high stability, so that the manufactured lithium ion battery has perfect mechanical performance; due to the distribution characteristic of the organic substance coating layer, spaces are provided for charging and discharging processes of a pole piece and a circulation process; and the problem of deformation of the polymer lithium ion battery is well solved. Furthermore, the invention also discloses a polymer lithium ion batter with the diaphragm.
Owner:NINGDE AMPEREX TECH +1

Semi-chromatography gamma scanning method for low-medium radioactive waste barrel measurement

The invention provides a semi-chromatography gamma scanning method for low-medium radioactive waste barrel measurement. A rotary platform, a detector platform, a detector with a collimator, a transmission source platform, a transmission source, a shielding part of the transmission source and an analysis module are adopted in the method. A waste barrel is divided into multiple section layers in the height direction, the waste barrel is rotated, surface distribution of radioactive point sources on the section layers is changed into linear distribution of ring sources in the radius direction, the detector conducts measurement at different section layer heights and different eccentric positions in the section layers, an equation set reflecting the mutual relation between the detector counting rate and the activity of nuclide in annular grids is established, the equation set is solved, distribution of the activity of the radioactive nuclide in the waste barrel in the diameter direction and the height direction of the barrel is acquired, and the total activity of the radioactive nuclide in the waste barrel is acquired through summation. The method is high in measurement accuracy, short in measurement time and high in practical value and application prospect.
Owner:SHANGHAI JIAO TONG UNIV

A monitoring method for a surrounding rock and full face tunnel boring machine shield interaction process

The invention provides a monitoring method for a surrounding rock and full face tunnel boring machine shield interaction process. The method comprises the steps of: A, welding and installing pressure boxes to the outer surface of a shield for testing the extrusion force applied to the shield by surrounding rocks directly, placing cables of the pressure boxes in flexible cable-protecting casing pipes, and leading the cables into the shield and connecting the cables to a reading device; B, installing a surface strain sensor in each of the annular direction and the longitudinal direction of each monitoring point on the inner surface of the shield, and inversely calculating the extrusion force applied to the shield by the surrounding rocks according to the principle of elastic mechanics based on the tested annular and longitudinal strains of the inner surface of the shield; C, according to the acquired distribution rules of the extrusion force applied to the shield by the surrounding rocks, calculating the friction force borne by the shield on the premise of linear distribution of the extrusion force between two adjacent measuring points; D, according to the jamming state judging criteria and jamming risk coefficient calculation method, calculating whether the shield is jammed and giving early warning of a jamming risk level. The method solves the problem in monitoring of surrounding rock and shield interaction in a shield type TMB tunneling process, provides basis for the predictive analysis of jamming accidents and is of great importance for the safety of TBM tunneling.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI +1

Method for suppressing active circulation with parallel three-phase inverters

The invention provides a method for suppressing active circulation with parallel three-phase inverters. The method for suppressing the active circulation with the parallel three-phase inverters comprises the following steps: sending the time variable Tu0Ns which represents the control action of each module zero sequence voltage in a three-phase inverter parallel system to a digital CAN communication bus, wherein any one inverter module can receive the components Tu0Ns of other inverter modules; completing average value calculation on the component in each control system by the three-phase inverters; taking the difference between the average value calculation and the time variable Tu0N of the self control action of the zero sequence voltage as a feedforward compensation amount of a zero sequence current control loop of the inverter module; combining output of a zero sequence current control channel with non-zero voltage vector acting time obtained by modulation and output of the SVPWM when dq axis decoupling control is adopted by the parallel system; and adjusting the zero voltage vector acting time according to a linear distribution mechanism, and obtaining on-off control signals of each bridge arm power device of a single three-phase inverter. The method for suppressing the active circulation with the parallel three-phase inverters improves current balance controlling ability of each parallel inverting module under the condition that extra hardware cost, size and weight are not increased.
Owner:HARBIN ENG UNIV

Axial flow impeller machine design method and blade

The invention provides a design method for an axial flow impeller machine for confirming the flow model of the axial flow impeller machine. The method at least includes the circle component of vu2 and axial plane speed of vm2 which are at the exit of a vane and are distributed in a way of linearity along the radius of the vane, and the circle component and axial plane at the hub side is small while the circle component and axial plane at the wheel edge side is larger; the distribution functions of the circle component vu2 and axial plane speed vm2 at the exit of the vane are confirmed according to the external characteristic parameters and structure parameters as well as the flow model of the axial flow impeller machine; the axial flow impeller machine is designed according to the confirmed distribution functions of the circle component vu2 and axial plane speed vm2 at the exit of the vane. The invention also provides the vane of the designed axial flow impeller machine; wherein, the difference of the mounting angles for the wing models of the hub side and wheel edge side of the vane Delta Beta is equal to Beta h minus Beta s and is between minus 3 degrees to 10 degrees. The equipressure area at the back of the vane is distributed along the radial direction of the vane in strip. The invention can improve the efficiency of the impeller machine to reach 91 percent and improve the anti-cavitation erosion capacity.
Owner:任明琪

Surface-plasmon-polariton spectral absorption device based on periodic chirp structure

InactiveCN103197365AAchieve near perfect absorptionHigh bandwidthDiffraction gratingsGratingLinear distribution
The invention discloses a surface-plasmon-polariton spectral absorption device based on a periodic chirp structure. The surface-plasmon-polariton spectral absorption device comprises a substrate, a first metal layer and a plurality of gratings, wherein the first metal layer is positioned on the substrate; the plurality of gratings are positioned on the first metal layer; each grating comprises an insulator body positioned on the first metal layer and a second metal layer positioned on the insulator body; and the gratings are in linear chrip at least along the X direction or Z direction or along the two directions simultaneously. The surface-plasmon-polariton spectral absorption device disclosed by the invention has the advantages that since the period of the gratings adopts the linear chrip, the resonant wavelength is in linear distribution and covers larger spectral range, and the bandwidth of the whole forbidden band is realized and widened by properly adjusting a chrip coefficient of the gratings and a resonant cavity formed by an upper metal layer/insulator layer/lower metal layer, so that the possibility for realizing a low and flat reflecting forbidden belt is realized; and under the limiting condition of phase matching and sub-wavelength size, nearly-perfect absorption of the bandwidth can be realized by proper design.
Owner:SUZHOU UNIV

Logistics delivery route optimizing generation method and system

The invention discloses a logistics delivery route optimizing generation method and system. The logistics delivery route optimizing generation method comprises the following steps: firstly, obtaining and combining client information in distribution areas to form distribution districts; then, selecting the district which takes the longest distribution working time from a logistics center as a calculation source point according to delivery car capacity; accumulating client delivery capacity according to client linear distribution serial numbers in the district or a next delivery district which takes the shortest working time from the source point until the delivery car capacity is satisfied; and finally, finishing a total delivery amount, and outputting the selected client linear distribution serial numbers as an optimal delivery route. A proper delivery path is calculated by adopting a reverse recursion Dijkstra algorithm, the district is used as a basic calculation unit, a distribution network is simplified, a network calculation amount is greatly lowered, information acquisition difficulties and information acquisition time are greatly lowered and shortened respectively, the amount and the dispatch frequency of the delivery cars are reduced, operation cost is lowered, and distribution efficiency is improved.
Owner:四川省烟草公司广安市公司 +1

Radar data association method based on simplified multi-hypothesis algorithm

The invention provides a radar data association method based on a simplified multi-hypothesis algorithm. In view of problems of combination explosion and calculation amount exponential rising caused by a delay decision making mechanism of the traditional multi-hypothesis algorithm in a multi-target tracking system, a likelihood ratio scoring function and a linear distribution (LAP) pruning method are introduced, a track association logarithm likelihood ratio is used for simplifying hypothesis association probability calculation, M optimal hypothesis at the current moment is obtained through LAP algorithm track level pruning, through further global level hypothesis pruning, an optimal hypothesis matching sequence is obtained quickly as an effective association measurement point, and the purpose of reducing the calculation amount finally is realized. The method particularly comprises three main steps of track scoring calculation based on the likelihood ratio function, LAP-based track level M-optimal hypothesis pruning and LAP-based global level optimal hypothesis generation. By using the method provided by the invention, on the basis of ensuring the association accuracy, the calculation amount during a multiple hypothesis algorithm data association process can be reduced to a large degree.
Owner:NANJING UNIV OF SCI & TECH

Simple and easy dynamic distribution path optimization method

The present invention discloses a simple and easy dynamic distribution path optimization method. The method comprises the following steps: collecting demand orders through a network; performing analysis arrangement of the demands through a calculation method; according a current article category library, calculating the sizes and the weights of articles required by each demand department; inputting coordinates of demand destination onto an electronic map; establishing a distribution model, and performing dynamic regulation; calculating distribution line sequence numbers according to the optimization algorithm in areas, and employing linear distribution; and completing distribution amount, and outputting selected distribution line sequence numbers as optimized distribution paths; and displaying the output optimized distribution paths on the electronic map. The simple and easy dynamic distribution path optimization method is employed to complete the whole logistics transportation and distribution so as to improve the work efficiency of the logistics distribution work, reasonably arrange the vehicle distribution paths, realize reasonable line transportation, save the transportation time, increase the vehicle utilization rate and improve the enterprise competitiveness.
Owner:ANHUI TELECOMM PLANNING & DESIGNING

Calculation method of soil engineering grid tensile force inside multilayer ribbed cushion layer

The invention provides a calculation method of soil engineering grid tensile force inside multilayer ribbed cushion layer; the method comprises the following steps: firstly judging a pile net composite foundation plane layout parameter, then determining equivalent linear distribution loads at a ribbed cushion layer surface, and the like; determining a cross section parameter of a ribbed cushion layer equivalent composite plate structure; and then based on an elastic grade beam analyzing method, determining a ribbed cushion layer deformation equation and an internal force equation from a deformation coordinate boundary condition; based on the ribbed cushion layer deformation equation and the internal force equation, calculating a soil engineering grid tensile force caused by the deformation when the embankment filled earth subsides; based on an internal force balance equation under an embankment filled earth transverse slide threshold status, calculating the soil engineering grid tensile force caused by the embankment transverse slide; and finally, superposing the soil engineering grid tensile forces caused by the embankment filled earth subside deformation and the transverse slide, thereby obtaining the needed soil engineering grid tensile force parameter. In condition that multiple layers of soil engineering grids are laid on the top cushion layer of the pile net composite foundation piles, the calculation method is able to precisely calculate the tensile force parameter of each layer of soil engineering grid inside the cushion layer.
Owner:CHINA RAILWAYS CORPORATION +1

Power converter with linear distribution of heat sources

A power converter design is disclosed with a novel approach to thermal management which enhances the performance and significantly reduces the cost of the converter compared to prior art power converters. The invention minimizes the heating of one power component by another within the power converter and therefore enables the power converter to work at higher power levels. Essentially, the power converter uses a heatsink having a high length to width ratio, a linear array of power components thermally coupled to the heatsink parallel to the long axis of the heatsink and a heat removal system which produces the highest cross sectional thermal flux perpendicular to said long axis. In addition, a number of ancillary thermal management techniques are used to significantly enhance the value of this basic approach. A specific circuit design for the power converter is not disclosed or discussed as the invention can be applied to any number of power converter electrical topologies. What is addressed is the specific thermal management of the three primary component groups found in any power converter; semiconductor devices, magnetic components and capacitors. The invention uses specific geometries and power component arrangements as well as strategic use of advanced thermal materials.
Owner:PARKER INTANGIBLES LLC
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