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32 results about "Equidistant grid" patented technology
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Fractal multi-resolution simplified method used for large-scale terrain rendering
InactiveCN102074050AAchieve reconstructionImprove spatial continuity3D modellingData setLevel of detail
The invention provides a fractal multi-resolution simplified method used for large-scale terrain rendering. The method comprises the following steps: (1) determining a terrain grid rendering region in a scene, firstly carrying out equidistant grid resampling on DEM (digital elevation model) data of coarser grids to form a terrain quadtree node; (2) projecting a view point to an XOZ plane, creating a terrain multi-resolution frame, and setting a plurality of different resolution levels from 1 to n on the terrain by adopting the multi-resolution LOD (level of detail) technology according to the view point; and (3) determining the level of the terrain according to the distances between the view point and different regions of a model, extracting characteristic parameters from an original DEM data set, adopting a DEM-based fractal random midpoint displacement interpolation to generate a continuous real terrain, and realizing reconstruction of a large-scale terrain. The terrain realized by adopting the method in the invention has good space continuity, cracks between different levels in a common multi-resolution model can be avoided, and smooth transition of different resolution models can be realized.
Owner:HARBIN ENG UNIV
Method, reconstruction device, and magnetic resonance apparatus for reconstructing magnetic resonance raw data
ActiveUS20150187073A1Simple methodAccurate calculationImage enhancementImage analysisResonanceEquidistant grid
In a method and a reconstruction device for reconstructing an image from MR raw data acquired with multiple coils and entered at sample points on a grid in k-space, the sample points are arranged on data entry trajectories, respectively, along one-dimensional edges in an equidistant grid dimension characteristic for the respective edge. If raw data were acquired at all sample points, k-space would be sufficiently scanned, but the raw data are entered only on a portion of the sample points so that sufficient scanning exists only in an internal region of k-space, with undersampling existing in an external region of k-space. Reconstruction of the missing raw data is performed by reconstructing raw data for a specific coil for the non-sampled sample points in the internal region using the raw data acquired with that coil for other sample points in the internal region, without using raw data acquired with other coils, and for the non-sampled sample points in the external region, using the raw data acquired for the internal region, as well as reconstructed raw data, and using raw data acquired with different coils.
Owner:SIEMENS HEALTHCARE GMBH
Method, reconstruction device, and magnetic resonance apparatus for reconstructing magnetic resonance raw data
ActiveUS9317917B2Quickly and optimally reconstructImage enhancementImage analysisOriginal dataResonance
In a method and a reconstruction device for reconstructing an image from MR raw data acquired with multiple coils and entered at sample points on a grid in k-space, the sample points are arranged on data entry trajectories, respectively, along one-dimensional edges in an equidistant grid dimension characteristic for the respective edge. If raw data were acquired at all sample points, k-space would be sufficiently scanned, but the raw data are entered only on a portion of the sample points so that sufficient scanning exists only in an internal region of k-space, with undersampling existing in an external region of k-space. Reconstruction of the missing raw data is performed by reconstructing raw data for a specific coil for the non-sampled sample points in the internal region using the raw data acquired with that coil for other sample points in the internal region, without using raw data acquired with other coils, and for the non-sampled sample points in the external region, using the raw data acquired for the internal region, as well as reconstructed raw data, and using raw data acquired with different coils.
Owner:SIEMENS HEALTHCARE GMBH
Ultrasonic detection method for nuclear power plant containment concrete defects
InactiveCN104142367ADetection method scienceEasy to operateAnalysing solids using sonic/ultrasonic/infrasonic wavesNuclear powerEngineering
The invention belongs to the technical field of building construction quality control of nuclear power plants, and in particular relates to a nondestructive detection method for ultrasonic detection of nuclear power plant containment concrete defects. The method includes the following steps: (1) preparation before detection; (2) the arrangement of measure points, to be more specific, inner wall measure points are arranged by first measurement of actual arc length of a containment inner wall detection area, then equal division of the arc length and drawing of equidistant grids; the outer wall measure points are arranged, the outer wall measure point position and the inner wall measure point position are in the same engineering elevation, the outer wall measure points are on straight lines determined by the inner wall measure points and the centers of circles, and the inner wall measure points pass through the concentric circles; (3) data measurement and save, to be more specific, according to the serial number sequence, two energy transducers are respectively arranged on corresponding measure points on the inner side and the outer side of a barrel body for successive measurement and save; (4) data processing, to be more specific, acquired and saved acoustic parameters are processed and analyzed for judging whether abnormal measure points exist; and (5) post processing, to be more specific, repetition measurement and encryption detection of an important focused region is performed on the basis of the above steps.
Owner:CHINA NUCLEAR IND 24 CONSTR
Wide and thick plate temperature monitoring method for grid exponential distribution
ActiveCN106540967AHigh temperature control accuracyImprove online computing efficiencyTemperature control deviceTemperature controlSheet steel
The invention provides a wide and thick plate temperature monitoring method for grid exponential distribution, and belongs to the technical field of automatic control on wide and thick plate rolling. The problem that the on-line operation time is too long caused by the fact that the grid division in a thickness direction is extremely fine when a thick gauge steel plate is rolled under the condition of large temperature gradient is solved. In a differential temperature rolling process, grid division is carried out on the steel plate from the surface to the core part of the steel plate along the thickness direction by adopting a manner that the log Kow of the thickness is equal and the true value of the thickness is in exponential distribution, so as to form a distribution form that grids at the surface are relatively fine and grids at the core part are relatively wide, thus improving the on-line operation efficiency of a temperature monitoring calculating process, and reducing the on-line operation time; compared with a traditional difference method of equidistant grid division, the temperature control accuracy can be improved to 6 to 8 DEG C from the traditional 10 to 15 DEG C by the method; the method can be widely popularized to wide and thick plate rolling plants, so as to improve the temperature control accuracy of a wide and thick plate product.
Owner:NORTHEASTERN UNIV
Rice leaf shape acquisition device and rice leaf shape parameter extraction method
The invention relates to a rice leaf shape acquisition device and a rice leaf shape parameter extraction method. A main body of the rice leaf shape acquisition device comprises a camera, a camera fixing device, a support frame transverse bar, a leaf bearing table, a support frame vertical bar, a support frame regulator, a computer, check paper, a double-faced adhesive tape and a black adhesive tape, wherein the camera is fixed on the support frame transverse bar through the camera fixing device; the leaf bearing table is a black horizontal tabletop; the black adhesive tape is adhered onto the leaf bearing table through the double-faced adhesive tape, and one gluey surface is upward; the support frame vertical bar is fixed in the middle of one side of the leaf bearing table; a distance between the camera and the tabletop can be regulated through the support frame regulator; the camera is directly connected with the computer; the check paper is a piece of white paper on which a black equidistant grid point is drawn. By the utilization of the device and the method provided by the invention, the rice tiller image acquisition and the rice leaf vein curve and leaf angle extraction are convenient, quick and accurate, hardware and a method are provided for the extraction of rice leaf shapes and parameters, and basic parameters can be provided for stimulation and optimal design of rice plant shapes.
Owner:HUNAN AGRICULTURAL UNIV
Method for mutually converting plane coordinates and geodetic coordinates of grid points at equal intervals in polar region
ActiveCN110415165AEfficient conversionGeometric image transformationICT adaptationRectangular coordinatesEquidistant grid
The invention discloses a method for mutually converting plane coordinates and geodetic coordinates of grid points at equal intervals in a polar region. Firstly, a polar region rectangular plane coordinate system is established. A polar region ellipsoidal surface is projected by adopting a positive axis equiangular orientation projection method. An equidistant grid is established in the polar region rectangular plane coordinate system. Rectangular plane coordinates of polar region equidistant grid points are converted into geodetic coordinates, and then the geodetic coordinates on the ellipsoidal surface are converted into polar region rectangular plane coordinates. Mutual conversion between polar region plane rectangular coordinates and geodetic coordinates is completed. The method has the beneficial effect that the plane coordinates and the geodetic coordinates of the grid points at equal intervals in the polar region can be efficiently converted with each other.
Owner:SHANDONG JIAOTONG UNIV
Rice tiller image acquisition device and shape parameter extraction method
InactiveCN104776800AEasy accessEfficient acquisitionUsing optical meansEquidistant gridFixed position
The invention relates to a rice tiller image acquisition device and a rice leaf vein curve and leaf angle extraction method. A main body of the rice tiller image acquisition device comprises a camera, a support frame, a background board, a computer, a camera fixing device, a regulating plate, a stalk fixing device and check paper, wherein the camera is fixed on the support frame through the camera fixing device, and the height of the camera is regulated through selecting a fixed position; the background board is a black wooden board; the stalk fixing device is a wooden block with an iron hairpin, and a stalk is inserted on the iron hairpin when an image is shot; the regulating plate can regulate a distance between the camera and the background board; the camera is a high-definition network camera and is directly connected with the computer, and a rice tillering image is shot by software provided by the camera; the check paper is a piece of white paper on which a black equidistant grid point is drawn. By the utilization of the device and the method provided by the invention, the rice tiller image acquisition and the rice leaf vein curve and leaf angle extraction are convenient, quick and accurate, hardware and a method are provided for the extraction of rice leaf shapes and parameters, and basic parameters can be provided for the stimulation and the optimal design of rice plant shapes.
Owner:HUNAN AGRICULTURAL UNIV
Distributed space-time correlation model trajectory tracking method based on statistical inference
InactiveCN106257301ARealize trajectory trackingImprove accuracyPosition fixationTracking modelDistribution characteristic
The invention relates to a distributed space-time correlation model trajectory tracking method based on statistical inference. Beacon nodes are deployed in the shape of an equidistant grid in a locating space according to longitudinal and transverse directions, and beacon node information is saved in each unknown node; the beacon nodes receiving notification information transmitted by the unknown nodes emit locating signals at a fixed frequency, and the unknown nodes receive and form multiple time sequences according to the beacon nodes; each unknown node constructs a boundary time sequence to detect a boundary crossing event and determine a corresponding time point; each unknown node constructs regional time window statistical quantity and infers the current region; the position of the intersection points of the trajectories and the boundary is inferred; and the trajectories are formed and the result is uploaded to aggregation nodes. According to the method, RSSI locating information probability distribution characteristics in the trajectory tracking problem and space-time data mining are overall considered, and the boundary crossing event and regional information are discovered through the method of time-space information statistical inference so that trajectory tracking can be realized.
Owner:INNER MONGOLIA UNIV OF TECH
Irregular model aperture-based common offset Kirchhoff prestack depth migration imaging method
ActiveCN110673213AImprove shallow image qualityExpand effective signal sourcesSeismic signal processingRectangular apertureImaging quality
The invention relates to an irregular model aperture-based common offset Kirchhoff prestack depth migration imaging method. With too small width, the conventional rectangular aperture can suppress shallow offset noise but lowers depth imaging quality; with too large width, the conventional rectangular aperture can guarantee depth imaging quality but causes stronger offset noise and lowers shallowimaging quality. Considering both offset size and maximum depth of an imaging model space, the method designs an irregular model space offset aperture with narrow shallow and wide deep, splits the irregular aperture by using grids of unequal distances and calculates a travel timetable in the irregular model aperture alone, then performs common offset Kirchhoff prestack depth migration imaging. Themethod can suppress shallow offset noise effectively and guarantees depth imaging quality; a travel timetable outside an irregular aperture is not calculated, so that calculation efficiency is improved; the range of the depth offset aperture is maximized without increasing excessive calculation amount, so that advantages like higher depth even super-depth imaging quality are increased.
Owner:JILIN UNIV
Model voxelization efficiency optimization method and system based on cpu operation
ActiveCN111862331AImprove the efficiency of simulation runsImprove primed efficiencyInternal combustion piston engines3D modellingVoxelProcess engineering
The invention provides a model voxelization efficiency optimization method based on cup operation. The method comprises the following steps: S1, dividing equidistant grids in an external cuboid spaceof a model on a cpu; S2, carrying out external voxelization of the model, i.e., carrying out mesh generation to meet the condition that a point set on the surface of the model is the external voxelization of the model; S3, carrying out the internal voxelization of the model, i.e., carrying out the mesh generation, meeting the condition that a point set in the model is the internal voxelization ofthe model, and completing the voxelization of the model after the external voxelization and internal voxelization of the model are completed. According to the method, the voxelization efficiency of the model is improved, and the working efficiency is improved.
Owner:FUJIAN TIANQUAN EDUCATION TECH LTD
Spatial aggregation scale selection method for geographic big data
ActiveCN111651501ARelational databasesGeographical information databasesFeature extractionPoint cloud
The invention discloses a spatial aggregation scale selection method for geographic big data. The spatial aggregation scale selection method comprises the steps of performing equidistant grid divisionon a research area under different grid sizes; generating scale snapshots of different scales; establishing point clouds for snapshots of different scales; carrying out topological feature extractionon the point cloud of each scale snapshot; performing scale effect analysis on each scale snapshot to obtain a key scale; and selecting a required spatial aggregation scale according to the key scale. According to the method, a topology analysis method is introduced; clustering modes, annular modes and inter-class modes of data under different aggregation scales are described through multi-ordertopology invariants, the influence of the scale effect is quantified through evolution of the modes, then scale mutation points are found to judge a proper research scale range, and therefore the selected spatial aggregation scale better meets actual requirements.
Owner:CENT SOUTH UNIV
Key driving force analysis method for urban and rural lake water storage change
ActiveCN113256101ARealize quantitative analysisDigital data information retrievalResourcesWater storageEnvironmental engineering
The invention discloses a key driving force analysis method for urban and rural lake water storage change, which comprises the following steps of performing equidistant grid division on a research area, and selecting a plurality of typical sampling points of unit area water storage according to a screening standard; establishing a database bearing driving force factors, and performing data preprocessing; scanning the lake basin characteristic trend database to form a candidate item set C1; judging the candidate item set C1, generating a frequent item set L1, and drawing various histograms of the L1; adopting an apriori-Gen algorithm, combining various data in the frequent item set L1, and forming a candidate item set C2; judging the candidate item set C2 to form a frequent item set L2; and iteratively generating a maximum frequent item set, and determining key driving forces of several lake water storage changes. According to the method, factors influencing the urban and rural lake water storage change are analyzed one by one by using the association algorithm, and the key driving force influencing the urban and rural lake water storage change is judged through iterative calculation of the association algorithm.
Owner:SOUTHEAST UNIV
Pattern distortion adjustment printing process method for automobile instrument dial
InactiveCN113650431AMeet needsFulfil requirementsPattern printingOther printing apparatusDashboardEquidistant grid
The invention discloses a pattern distortion adjustment printing process method for an automobile instrument dial, and relates to the technical field of automobile dial printing. The pattern distortion adjustment printing process method for the automobile instrument dial is a process method which is drawn in combination with engineering design software, equidistant grid lines are arranged on an instrument dial pattern, and adjustment is carried out after printing and forming, so that pattern deformation is made up and controlled; and by adopting the process method, the printing procedures can be simplified, and the process method has the advantages of low cost, short time period, flexible product adjustment data, obvious effect and the like.
Owner:上海志承新材料有限公司
Dashboard
InactiveCN102259537ATake advantage ofReduce waste of resourcesWriting aidsAgricultural engineeringEquidistant grid
The invention provides a line-marking frame plate. The frame plate is provided with a plurality of equidistant and evenly arranged elongated basket hollow frames. When in use, place the frame plate flat on white paper, and use a pen to draw equidistant and uniform horizontal grid lines in the empty frame grid, so that it can be used directly as credible paper, and can make full use of waste of various sizes. Paper, the characteristics of reducing waste of resources.
Owner:邱雨
BIM (Building Information Modeling)-based arrangement method for avoiding collision of pipelines at complex parts
PendingCN114547750AImprove stress resistanceShorten the overall length of the layoutGeometric CADSpecial data processing applicationsProcess engineeringEquidistant grid
The invention discloses a BIM-based arrangement method for avoiding collision of complex part pipelines, and belongs to the technical field of BIM pipeline design. In order to solve the problems that an existing pipeline structure of a high-rise building is mainly distributed in a bottom layer area and ceiling areas of all floors, the top areas of all the floors are taken as examples, pipeline design needs to avoid load-bearing wall faces, avoiding design needs to be carried out among pipelines according to regulations, and the design cost is low. In order to solve the problem that actual construction is often inconsistent with drawing data, a two-dimensional plane system of a building single layer is imported into BIM software, a building plane graph is introduced into a two-dimensional plane coordinate axis, the coordinate axis is presented in an equidistant grid line mode, a group of pipeline databases is created in the system, and the two-dimensional plane system and the building plane graph are integrated into the BIM software. Secondly, pipeline parameters needed to be used in the building of the floor are imported into the data, the pipeline parameters comprise the types and the calibers of pipelines, and each set of pipeline data corresponds to one set of single line colors;
Owner:HUANGHUAI UNIV
A kind of anti-mosquito device that is easy to clean
ActiveCN111066754BSolve pollutionAvoid flying out againInsect catchers and killersAnimal scienceControl mosquito
The invention discloses an easy-to-clean mosquito killing device. The structure includes: a body, a mosquito collecting mechanism, a frame plate, and a power grid. The bottom end of the body is fitted with a mosquito collecting mechanism. Its sides are arranged in a circular equidistant grid, and the beneficial effect of the present invention is to use the storage chassis to place substances rich in stearic acid that attract mosquitoes to realize the concentration of mosquitoes in the mosquito collecting mechanism and control the locking and release of the pressing plate by triggering the connecting rod Time to prevent mosquitoes from flying out of the structure again, combined with the power grid to kill mosquitoes, can effectively avoid secondary pollution.
Owner:蒋国平
A Numerical Calculation Method of Finite Volume Flow Field Based on Non-equidistant Grid
ActiveCN108280273BGuaranteed accuracyAvoid Negative Nonlinear WeightsDesign optimisation/simulationSpecial data processing applicationsComputational physicsEquidistant grid
A numerical calculation method for finite volume flow field based on non-equidistant grids, which involves a fifth-order finite volume WENO scheme with linear weights. Without reducing the overall numerical accuracy, only three additive A positive number equal to 1 is used as a linear weight, and then subsequent calculations can be performed. Since the numerical format constructed by the present invention does not need to calculate complex linear weights related to the grid scale under non-equidistant grids, it is easier to extend to higher-order WENO schemes, moving grids, or flow fields in adaptive grids calculate. In addition, the present invention, like the traditional WENO format, uses the Runge-Kutta time-discrete method with good stability, simple operation and easy programming to solve the problem. Finally, the present invention verifies its superiority in flow field calculation by comparing it with the traditional formula through specific numerical examples.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Rice single tiller image acquisition device and morphological parameter extraction method
InactiveCN104776800BEasy accessEfficient acquisitionUsing optical meansEquidistant gridFixed position
Owner:HUNAN AGRICULTURAL UNIV
Long-short-term memory correction forecasting method and device for icing thickness of fan blade
PendingCN114741971AOptimize generation dispatchIncrease valueDesign optimisation/simulationNeural architecturesShort-term memoryEngineering
The embodiment of the invention provides a long-short-term memory correction forecasting method for the icing thickness of a fan blade. The method comprises the following steps: determining a to-be-forecasted area in which freezing rain icing numerical forecasting needs to be carried out; dividing an area to be forecasted into equidistant grids; initial field data and boundary condition data for carrying out freezing rain icing numerical value prediction are obtained, the initial field data are data on each grid point at the moment when an index value prediction mode starts integration, and the initial field data and the boundary condition data consistent with grids of a to-be-predicted area are input into a numerical value mode; obtaining a first freezing rain icing value of the fan blade in the to-be-forecasted area at a future preset time point; inputting the first freezing rain icing value into a long-short term memory neural network; and obtaining a second freezing rain icing value obtained by correcting the first freezing rain icing value by the long and short term memory neural network, and determining the second freezing rain icing value as the freezing rain icing value of the fan blade in the to-be-forecasted area at the future preset time point.
Owner:STATE GRID HUNAN ELECTRIC POWER +2
Rice leaf shape collection device and method for extracting rice leaf shape parameters
The invention relates to a rice leaf shape collection device and a method for extracting rice leaf shape parameters. A rice leaf shape collection device, its main body includes a camera, a camera fixing device, a bracket bar, a leaf loading platform, a bracket vertical bar, a bracket regulator, a computer, a check paper, double-sided adhesive tape, and a black tape; the camera is fixed through the camera The device is fixed on the horizontal bar of the bracket; the leaf loading table is a black horizontal tabletop, and the black tape is pasted on the leaf loading table with double-sided adhesive tape, and the side with the glue is facing upward; the vertical bar of the bracket is fixed on the side of the leaf loading board. In the center, the distance between the camera and the table can be adjusted through the bracket adjuster; the camera is directly connected to the computer; the verification paper is a piece of white paper with black equidistant grid points. Using the device and method of the present invention to collect rice leaf shape images and extract rice leaf shape curves and leaf areas is convenient, fast and accurate, and provides hardware and methods for the extraction of rice leaf shape and parameters, and can be used for the simulation and optimization of rice plant shape The design provides the basic parameters.
Owner:HUNAN AGRICULTURAL UNIV
Co-offset kirchhoff prestack depth migration imaging method based on irregular model aperture
ActiveCN110673213BImprove shallow image qualityExpand effective signal sourcesSeismic signal processingRectangular apertureImaging quality
The invention relates to an irregular model aperture-based common offset Kirchhoff prestack depth migration imaging method. With too small width, the conventional rectangular aperture can suppress shallow offset noise but lowers depth imaging quality; with too large width, the conventional rectangular aperture can guarantee depth imaging quality but causes stronger offset noise and lowers shallowimaging quality. Considering both offset size and maximum depth of an imaging model space, the method designs an irregular model space offset aperture with narrow shallow and wide deep, splits the irregular aperture by using grids of unequal distances and calculates a travel timetable in the irregular model aperture alone, then performs common offset Kirchhoff prestack depth migration imaging. Themethod can suppress shallow offset noise effectively and guarantees depth imaging quality; a travel timetable outside an irregular aperture is not calculated, so that calculation efficiency is improved; the range of the depth offset aperture is maximized without increasing excessive calculation amount, so that advantages like higher depth even super-depth imaging quality are increased.
Owner:JILIN UNIV
Method for establishing PEEK composite material fiber laying heat transfer model
PendingCN111950185APrediction of temperature field changesDesign optimisation/simulationSpecial data processing applicationsFiberHeat analysis
The invention provides a method for establishing a PEEK composite material fiber placement heat transfer model. The method comprises the following steps: defining a fiber placement temperature field analysis unit in a pretreatment module, selecting a thermal analysis unit type, establishing a geometric model, defining thermoplastic fiber and mold material related attributes, and dividing thermal analysis grids at equal intervals; defining a heat flow density load and a heat dissipation boundary condition in a solving module, and setting a load step option; establishing a geometric model by utilizing an ANSYS finite element analysis software cyclic loading technology and a birth-death unit, applying an initial temperature and a boundary condition, killing all the layering units, activatingthe bth unit of the a layer, applying a thermal load to an activation unit to delete the thermal load of the previous load step, and repeating the steps; solving the transient process of the temperature field, carrying out equidistant grid division on the thickness and length directions of the base layer of the paving layer, and dividing two units in the thickness direction of each layer; and setting a command stream through the APDL, and completing the establishment of a related model.
Owner:JIANGSU UNIV OF TECH
Design method of integrated photonic band-pass filter based on genetic optimization
ActiveCN111428340ASmall sizeHighly integratedDesign optimisation/simulationWaveguide type devicesMacroscopic scaleOptical processing
The invention relates to a design method of an integrated photonic band-pass filter based on genetic optimization, and belongs to the technical field of micro-nano photonics devices. A mode analysis module of physical field simulation software is utilized, an equivalent refractive index method is adopted to enable a three-dimensional model to be equivalent to a two-dimensional model, the overall shape and the structural unit shape of a device are selected, and then an equidistant grid is used for dividing the overall device to carry out genetic optimization operation, so that the structure ofthe band-pass filter is determined through an output optimal structural unit. According to the method, the design efficiency is greatly improved, and compared with a traditional macroscopic optical device, the manufactured band-pass filter is ultra-small in size and high in integration degree, has good performances and excellent linear type, is large in bandwidth and is low in roll-off range; andthe indexes meet the requirements of current micro-nano machining. By using the method, a researcher can focus on cascade application of the device and exploration of an internal mechanism of the device, and an alternative scheme is provided for development of optical processing and optical communication in the future.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Fermentation bucket for producing wine-pickled meat in restaurants
ActiveCN106108089AEasy to useStrong distiller's grainsKitchen equipmentFood shapingEngineeringEquidistant grid
The invention discloses a fermentation bucket for producing wine-pickled meat in restaurants. The fermentation bucket comprises a bucket body and a bucket cover, wherein the bucket body comprises a plurality of picking grid layers which are overlapped up and down, equidistant grid holes of the same size are formed in the surfaces of the bottoms of the picking grid layers, a picking mat is laminated on the grid holes in each picking grid layer, and a vinasse layer A, a wine-pickled meat layer and a vinasse layer B are sequentially arranged on each picking mat from bottom to top; and concave edges are formed in openings of every two picking grid layers which are sealed and overlapped up and down, the concave edge at the opening of the lower picking grid layer can be right sleeved with the bottom of the upper picking grid layer, and the sealing is reinforced by virtue of a sealing ring. The fermentation bucket is of a scientific and reasonable structural design; and by combining with the technical points for producing the wine-pickled meat, the fermentation bucket special for producing the fermentation bucket in batch is provided and has the beneficial effects that the airtightness is high, the fermentation speed is high, the produced wine-pickled meat has pleasant bouquet and original taste and flavor and is fat but not greasy, sweet, soft and sticky, and the appetite of people can be promoted after eating.
Owner:云霄县食品快检中心
Iron ore powder liquid phase fluidity detection method based on sintering actual production conditions
ActiveCN112611678AFluidity test results fitSuitable for on-site operationMechanical area measurementsFlow propertiesVertical projectionEquidistant grid
The invention discloses an iron ore powder liquid phase fluidity detection method based on sintering actual production conditions, and belongs to the technical field of ironmaking sintering. The method comprises the following steps: taking the actual industrial analysis CaO mass fraction of sinter as a constant target value; selecting calcium ash in a sintering production field as a flux, and determining that the mass fraction of CaO in a mixture is a batching structure with a set constant target value according to the mass fractions of the calcium ash, iron ore powder SiO2 and CaO; pressing a sample with a fixed specification by using a grinding tool, and simulating a sintering temperature rise curve to sinter the sample; utilizing organic glass with equidistant grids to calculate the vertical projection area of the fused sample by applying a differential method and a cutting compensation method; characterizing the ratio of the vertical projection area of the sample after melting to the vertical projection area of the sample before melting as a liquid phase fluidity index; taking an index mean value of a plurality of groups of samples of a single iron ore powder as the liquid phase fluidity of the iron ore powder under the actual sintering production condition, and guiding the sintering ore blending according to the complementation principle.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
A fermenting barrel used in restaurants to make bad meat
ActiveCN106108089BEasy to useStrong distiller's grainsKitchen equipmentFood shapingFlavorEquidistant grid
The invention discloses a fermentation bucket for producing wine-pickled meat in restaurants. The fermentation bucket comprises a bucket body and a bucket cover, wherein the bucket body comprises a plurality of picking grid layers which are overlapped up and down, equidistant grid holes of the same size are formed in the surfaces of the bottoms of the picking grid layers, a picking mat is laminated on the grid holes in each picking grid layer, and a vinasse layer A, a wine-pickled meat layer and a vinasse layer B are sequentially arranged on each picking mat from bottom to top; and concave edges are formed in openings of every two picking grid layers which are sealed and overlapped up and down, the concave edge at the opening of the lower picking grid layer can be right sleeved with the bottom of the upper picking grid layer, and the sealing is reinforced by virtue of a sealing ring. The fermentation bucket is of a scientific and reasonable structural design; and by combining with the technical points for producing the wine-pickled meat, the fermentation bucket special for producing the fermentation bucket in batch is provided and has the beneficial effects that the airtightness is high, the fermentation speed is high, the produced wine-pickled meat has pleasant bouquet and original taste and flavor and is fat but not greasy, sweet, soft and sticky, and the appetite of people can be promoted after eating.
Owner:云霄县食品快检中心
Magnetic field deformation calibration tool and method in electromagnetic navigation system
PendingCN112089491ASolve problems that are susceptible to interference from environmental factorsAccurate Navigation SystemMeasurement devicesSurgical navigation systemsComputational scienceComputational physics
The invention provides a magnetic field deformation calibration tool and method in an electromagnetic navigation system. The method comprises the following steps: firstly, placing a magnetic field generator in a working environment used by a magnetic field in a data training stage, and collecting the magnetic field coordinates at the positions of equidistant grids on a coordinate collection plate;obtaining the magnetic field coordinate values of all points on the three-dimensional equidistant grid lines, and solving the deformation quantity of the magnetic field coordinates according to the physical coordinates defined by the grid lines and the collected corresponding magnetic field coordinates; combining the deformation quantities obtained in different magnetic field working environmentsto form a magnetic field deformation statistical model; and in the using and operating stage, collecting local magnetic field coordinates once on the coordinate collecting plate to obtain local deformation quantity, and obtaining the global deformation quantity value of the current magnetic field coordinates by obtaining sparse expression. According to the present invention, the method has the advantages of quickness, accuracy and universality, the problem that electromagnetic navigation is easily interfered by environmental factors is quickly solved through sparse solution of the statisticalmodel of the magnetic field deformation data, and the navigation system is more accurate.
Owner:上海精劢医疗科技有限公司 +1
Two-dimensional phased-array antenna design method and device and two-dimensional phased-array antenna
ActiveCN114552237AEliminate raster sidelobesSolve fast implementationDesign optimisation/simulationAntenna arrays manufactureAntenna designRadar
The invention discloses a two-dimensional phased-array antenna design method and device and a two-dimensional phased-array antenna in the technical field of radar, and the method comprises the steps: obtaining the number N of antennas, the wavelength and the minimum spacing of the antennas, and constructing a grid with N * N equidistant grid points according to the number N of the antennas and the wavelength; according to the constraint conditions that only one antenna is distributed in each row and each column and the distance between any antennas is not smaller than the minimum interval, all antenna distribution arrays of the antennas in the grids of the equidistant grid points are obtained; far-field distribution data of each antenna distribution array is calculated and obtained, and signal-to-noise ratios corresponding to all the antenna distribution arrays are calculated according to all the far-field distribution data; and selecting a required antenna distribution array from all the antenna distribution arrays according to the signal-to-noise ratio parameter. A two-dimensional phased array design scheme and a two-dimensional phased array antenna arrangement structure for eliminating grating side lobes by using fewer antennas are realized.
Owner:杭州洛微科技有限公司
A 3D Geological Grid Model Construction Method
ActiveCN105321204BThe concept of complete geological three-dimensional space distribution formAccurate geological three-dimensional space distribution form concept3D modellingGeomorphologyTriangulation
The invention discloses a method for building a three-dimensional geological grid body model, which belongs to the field of building three-dimensional geological body models. A method for constructing a three-dimensional geological grid body model according to the present invention, the specific process is as follows: determine the standard engineering plane range → gridize the standard rectangular area G → calculate the surface triangular network and underground triangular network of the standard rectangular area G → calculate the standard rectangular area Calculation line and grid line of G unit grid→ equidistant division of auxiliary line and calculation line→ calculation of discrete point geological attributes→ establishment of corresponding relationship between calculation points and auxiliary points→ construction of three-dimensional geological grid unit body→ unit body classification→according to The calculation information and position information of the unit body will merge the unit body, a total of ten steps, by discretizing the space into a series of points, and by calculating the geological attributes of the points, and then analyzing the correlation between points, and then merging the space where the discrete points are located Geometry, so as to calculate the geological distribution of the whole space, which can achieve the purpose of high precision, small space limitation, high efficiency and strong applicability.
Owner:马鞍山城智信息技术有限公司
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