45 results about "Field function" patented technology

The invention discloses a generation method of planar spiral and annular milling tracks. The generation method comprises the following steps: acquiring a plane machining region of a multi-shaft cutter, performing triangle grid division on the plane machining region to construct an energy field; establishing a constraint equation of the energy field, performing finite element solution on the constraint equation to obtain a field function; establishing a divide curve family according to the finite element solution to acquire a cutting line of a length maximum value; calculating equal scalar value curves according to the cutting line of the length maximum value, and cutting the plane machining region into m sub-regions, wherein m is an positive integer; and respectively performing interpolation on each pair of equal scalar value curves in the m sub-regions to obtain spiral lines. According to the generation method of the planar spiral and annular milling tracks, the vibration generated in the machining process of a numerical control machine tool can be reduced, at the same time, the processing efficiency is improved, and the loss of the cutter is reduced.

A real-time detection method of a soft abrasive flow abrasive group comprises the following steps: 1) establishing a phase-field model two-phase interface mixed energy equation according to the distribution condition of the soft abrasive flow abrasive group, also establishing a control equation of the phase-field function evolution, finally approximating a viscous phase and a surface pressure phase by a traditional second order center difference scheme, performing spatial discretization reconstruction of the control equation by a fifth order WENO scheme, performing discretization in the time direction by a Runge-Kutta method with a TVD property, and thus solving the two-phase interface to obtain a theoretical model of the abrasive group distribution; 2) performing real-time image processing of the distribution area of the abrasive group in a constraint channel obtained by a soft abrasive flow image acquisition device according to the obtained theoretical model of the abrasive group distribution, and thus extracting a contour feature of the abrasive group distribution area to obtain the change condition of the abrasive group dynamic boundary. The invention effectively detects the distribution condition of the soft abrasive flow abrasive group.

The invention discloses a coal mine rescue robot path programming and navigation system based on an improved artificial potential field and a method thereof. An obstacle filling method and a disturbance potential field method are combined. In the obstacle filling method, virtual filling is performed on a concave obstacle, a potential field function is constructed and filled and a corresponding repulsive potential field function is generated. In the disturbance potential field method, through adding a disturbance potential field in a gravitational potential field, a gravitational potential field function is changed and a rescue robot can autonomously walk out of a local minimum point when falling into the local minimum point. The two methods are combined, which can well help the underground rescue robot escape from the local minimum point; and the path is reprogrammed, and the robot can be avoided from falling into other local minimum points again and can successfully complete a disaster rescue task; an algorithm is concise and high reliability is possessed.

The invention discloses a fluorescent dark field microscopy device and method based on waveguide constraint. The fluorescent dark field microscopy device comprises an illumination laser light source, a beam expansion lens, a near-end reflector, a carrier chip, a microobjective, a far-end reflector, a light filter, a collection lens and a CCD (Charge Coupled Device) image sensor; the method comprises the following steps that: the carrier chip which directly realizes the dark field function is prepared; lasers emitted by the illumination laser light source irradiate on a polymer film in the carrier chip through the near-end reflector after being subjected to beam expansion; fluorescence light emitted from fluorescent molecules in the light source forms a guiding mode in the carrier chip and is constrained at an interface of the polymer film and air, and thus, the bottom of a sample nearby the carrier chip is lightened by a near field and scattered; then, light is collected by the microobjective, after the illumination lasers are filtered by the far-end reflector and the light filter, the light is collected by the collection lens and forms an image at the CCD image sensor. The device and the method are based on the constraint of a fluorescent waveguide mode, the microscopy structure is simplified, and the dark field microscopy function is realized.

The present invention is related to a quantitative structure-based affinity scoring method for peptide/protein complexes. More specifically, the present invention comprises a method that operates on the basis of a highly specific force field function (e.g. CHARMM) that is applied to all-atom structural representations of peptide/receptor complexes. Peptide side-chain contributions to total affinity are scored after detailed rotameric sampling followed by controlled energy refinement. The method of the invention further comprises a de novo approach to estimate dehydration energies from the simulation of individual amino acids in a solvent box filled with explicit water molecules and applying the same force field function as used to evaluate peptide/receptor complex interactions.

A method for flexible functionally tailorable slicing for additive manufacturing includes the steps of receiving and parsing an input model of an object to be additively manufactured; reconstructing a domain boundary of the object; computing individual layer boundaries of the object; constructing, for each layer, layer domains from respective enclosing boundaries; computing, for each layer, a perimeter shell and a volumetric infill by finding level sets of a field function selected by a user; collecting and arranging into a coherent sequence each perimeter shell and volumetric infill; and formatting the coherent sequence as motion commands for an additive manufacturing system.

The invention provides a method for calculating a rigid-flexible coupling dynamics response of a flexible rectangular thin plate based on a B sample band. The method comprises the specific steps that1, a kinematic expression of kinetic energy and potential energy of the thin plate is established; 2, a discretization deformation field function, about w1, w2 and u3, of the thin plate is determinedby adopting the B sample band; 3, the discretization deformation field function, about w1, w2 and u3, of the thin plate is substituted back to the expression of the kinetic energy and potential energyof the thin plate, and a rigid-flexible coupling dynamics equation of the thin plate is established according to the Lagrange's equation. The method has the advantage of calculation precision in a rigid-flexible coupling dynamics response problem of a large-deformation flexible body. According to the method, the deformation field discretization method of the flexible body is enriched and expandedto a certain degree.

The invention discloses a giant magnetostriction material doped with trace non-solid-solution large atoms to cause distortion enhancement and a preparation method thereof. The material comprises the components of (Fe<1-y>Ga<y>)<100-x>M<x>, wherein x=0.01-1, y=0.05-0.35, and M is one or more kinds of Ti, Zr, Hf, Sn, Pb, In, Tl, Bi, R (symbiotic rare earth) and U. The developed Fe-Ga-based novel magnetostriction material has large tetragonality, and the largest tetragonality can be 2,250 ppm. The large magnetocrystalline anisotropy performance is caused by large tetragonal distortion, and the largest magnetocrystalline anisotropy performance can be 330 kJm<-3>. Large magnetostriction performance is caused by the large magnetocrystalline anisotropy performance. Furthermore, due to the fact that the trace doped non-solid-solution large atoms have the strong crystalline field function, the magnetocrystalline anisotropy performance can be improved, and therefore the magnetostriction performance is increased. Finally, the novel giant magnetostriction material can achieve the saturation magnetostriction performance of 2,000 ppm, and the material has the giant application prospect in the field of national defense and civil use with the prominent advantages of low cost and high performance.

The present invention relates to a self-grounded antenna arrangement (10) comprising a base or central portion (5) arranged in a first plane and a number of arm sections (1,2,3,4) associated with said central portion (5), which taper towards a respective end tip. It comprises an electric conducting material, each arm section being adapted to form a transition from the central portion and being bent backwards towards the central portion by more than 180° so that its end tip approaches a first side of the central portion, at an opening therein. The end tip is connected to feeding means for feeding via an arm section specific port, one specific port ( 111, 112,113; 114;) for each arm section. Each arm section (1,2,3,4) comprises a mixed functionality of a curved monopole antenna and a loop antenna, and the antenna arrangement provides substantially uncoupled ports with far field functions that are almost orthogonal in polarization, direction or shape. The invention is in particular intended for use in MIMO antenna systems for statistical multipath environments.

The invention discloses a design method of an elliptical beam Cassegrain antenna, and belongs to the technical field of satellite communication antenna design. The method comprises the steps of parameterization of a mouth surface field function and a transition function; forming population individuals by using the parameters of the mouth-surface field function and the transition function, and performing population iteration based on a DEGL algorithm; and shaping the antenna by using the optimal individual in the last generation of population to obtain the optimal design of the elliptical beamCassegrain antenna. The method provided by the invention can quickly optimize and design the high-efficiency, low-sidelobe, low-cross-polarization and large-axial-ratio elliptical beam antenna, and isan important improvement on the existing antenna design method.

The invention relates to panel with fielding function of telecom, computer, auto control and correlated equipment, especial relates to electromagnetism field panel. A kind of electromagnetism field panel, is a long groove part, and the end blocks (1)which is used to connect the cabinet and frame are mounted on two end of underside separately, said plastic panel contains a plastic panel (2)and a field strip (3), the end block is located on the side of plastic panel to connect the field strip and the frame. Because the invention adopts the cheap and deformable material: the panel is made of plastic, and the conductive elastic material is used as the field of face and sides to reduce the cost.

The embodiment of the invention provides an information extraction method and device for the Internet of Vehicles. The information extraction method for the Internet of Vehicles comprises the following steps of: acquiring information of a component field in a driving area composite field of a vehicle, and determining a field function of the driving area composite field based on the information ofthe component field; sampling the information of the component field to obtain sampled data; and based on the field function and the sampled data, determining frequency spectrum information corresponding to the sampled data, and extracting abnormal information from the sampled data according to the frequency spectrum information so as to carry out traffic early warning on vehicles in the Internetof Vehicles. According to the technical scheme provided by the embodiment of the invention, abnormal information in the composite field of the driving area is extracted based on the frequency spectruminformation of the sampled data, so that the accuracy of data acquisition is improved, and the completeness of the acquired data is ensured at the same time.

The invention relates to a city landscape water body alga-controlling and pollutant-removing device. In the device of the invention, the inside of a hexahedron frame is divided into two spaces along a direction against the current, namely a front V1 space and a back V2 space, a suspending biological packing ball with a diameter of 15mm is arranged in the V1 space, and pebbles with a diameter of 20mm loaded with tetrasilver tetroxide are arranged in the V2 space. The invention overcomes the separate defects of the drainage control, sediment release technology, the manual aeration technology, the bioremediation technology and the chemical alga-killing technology. The invention integrates the biological and electrochemical methods to degrade the organic pollutants in water body and control the growth of alga in water body so that through the combination action of the biological and electrochemical methods, alga in water body is hard to grow and propagate largely while the pollutants are removed; the biological film on the surface of the suspending biological packing ball grows to absorb the organic pollutants in water body; and the pebbles loaded with tetrasilver tetroxide adopts theelectric field function of the microcell to effectively kill alga microorganisms in water and inhibit the growth of alga.

The invention discloses a Hyaluronic acid injection beautifying method in a three dimensional face virtual plastic surgery; the method comprises the following steps: 1, using a three dimensional scanner to obtain a three dimensional face model, and enabling a user to select injection parameters that includes an injection point, an injection radius and an injection capacity; 2, using a breadth-first traversal method to find all points in an injection area; 3, using a distance field function to calculate the weight of each point in the injection area; 4, using a dichotomy iterative method to calculate the elevation distance of a summit according to the injection capacity inputted by the user, thus obtaining a deformed three dimensional face model. The method uses the three dimensional modeldeformation technology, can simulate the Hyaluronic acid injection effect on the three dimensional face model gathered by the three dimensional scanner, is simple and easy to use, clear in algorithm,friendly in interface, robust in result, and can be applied in virtual face lifting, computer animation and computer gaming field.

The invention relates to a variable-structure wearable flexible thermoelectric device substrate topological optimization method, which comprises the following steps of selecting a physical model, and constructing a finite element model according to the physical model, wherein the physical model comprises a substrate, and the two ends of the substrate are connected with a deformable strip-shaped thermoelectric material; constructing a field function, wherein the field function is used for describing material distribution of the substrate; constructing an optimization model according to the finite element model and the field function; solving the optimization model to obtain a structure topological configuration, wherein the structure topological configuration is a structure topological configuration which drives the strip-shaped thermoelectric material to deform to generate maximum out-of-plane displacement when the substrate is subjected to a load. When the optimized substrate structure is subjected to a specified load, the thermoelectric material can be driven to generate maximum out-of-plane displacement, so that the cold-hot end temperature difference of the thermoelectric device is increased, and the energy output capability of the device is improved.

The invention is a method to strengthen servo domain function of embedded servo system, adding automatic gain control data in the servo domain, which does not increase operating time, and including: regulate information in the servo domain, to produce the information about minimum automatic gain control standard precision; use at least a sub-domain in the servo domain, the sub-domain used in a servo domain function and the automatic gain control, wherein the sub-domain is a circular one and a radial one.

The invention relates to a field function detection method of a portable in-situ bus protection sub-machine. A hardware platform of a portable in-situ bus protection sub-machine testing device is used; data communication with a protection debugging platform of a remote debugging center is carried out through a network module port; data of the protection debugging platform of the remote debugging center is utilized, functions to be detected are combined, a test environment under the real operation condition of a transformer substation is simulated for a tested protection sub-machine through various modules, the rapidity and accuracy of protection actions of the protection sub-machine under various fault conditions are tested, on-site automatic testing of the overall function of the tested protection sub-machine is realized, and the workload of parameter setting operation and feedback result comparison by an operator in the conventional on-site testing process is greatly reduced.