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120 results about "Fracture type" patented technology
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Fracture types (1) Overview. There are several types of bone fracture, including: Oblique - a fracture which goes at an angle to the axis. Comminuted - a fracture of many relatively small fragments. Spiral - a fracture which runs around the axis of the bone. Compound - a fracture (also called open) which breaks the skin.
Method for constructing fracture recognition model and application
ActiveCN108305248AAccurate predictionShorten diagnostic timeImage enhancementImage analysisPositive sampleFracture type
The invention provides a method for constructing a fracture recognition model and application. The method comprises: step A, acquiring X-ray images of different fracture types of different fracture parts; step B, carrying out image preprocessing on the X-ray images of different fracture types of different fracture parts; step C, carrying out image feature extraction on the preprocessed images; step D, generating a candidate region according to the image features; step F, carrying out fracture type target detection and region localization on the candidate region; step G, according to a facturetype target detection score, carrying out difficult sample mining to obtain negative samples for training; step K, expanding positive samples for training based on an adversarial learning strategy; and step H, training is carried out by using the positive samples and the negative samples so as to obtain all fracture recognition models for different fracture parts. Therefore, the fracture type andthe regional position can be predicted accurately by using the model, so that the diagnosis time of the doctor is reduced substantially and the missed diagnosis and misdiagnosis rates are reduced.
Owner:HUIYING MEDICAL TECH (BEIJING) CO LTD
Discriminating natural fracture- and stress-induced sonic anisotropy using a combination of image and sonic logs
Fracture- and stress-induced sonic anisotropy is distinguished using a combination of image and sonic logs. Borehole image and sonic logs are acquired via known techniques. Analysis of sonic data from monopole P- and S-waves, monopole Stoneley and cross-dipole shear sonic data in an anisotropic formation are used to estimate at least one compressional and two shear moduli, and the dipole fast shear direction. Fracture analysis of image logs enables determination of fracture types and geometrical properties. Geological and geomechanical analysis from image logs provide a priori discrimination of natural fractures and stress-induced fractures. A forward quantitative model of natural fracture- and stress-induced sonic anisotropy based on the knowledge of fracture properties interpreted from image logs allows the computation of the fast-shear azimuth and the difference in slowness between the fast- and slow-shear. The misfit between predicted and observed sonic measurements (i.e. fast-shear azimuth and slownesses) is then optimized in order to discriminate depth zones with an elastic medium as being influenced by the presence of open natural fractures, closed natural fractures and fractures induced by non-equal principal stress effects.
Owner:SCHLUMBERGER TECH CORP
Discriminating natural fracture- and stress-induced sonic anisotropy using a combination of image and sonic logs
Fracture- and stress-induced sonic anisotropy is distinguished using a combination of image and sonic logs. Borehole image and sonic logs are acquired via known techniques. Analysis of sonic data from monopole P- and S-waves, monopole Stoneley and cross-dipole shear sonic data in an anisotropic formation are used to estimate at least one compressional and two shear moduli, and the dipole fast shear direction. Fracture analysis of image logs enables determination of fracture types and geometrical properties. Geological and geomechanical analysis from image logs provide a priori discrimination of natural fractures and stress-induced fractures. A forward quantitative model of natural fracture- and stress-induced sonic anisotropy based on the knowledge of fracture properties interpreted from image logs allows the computation of the fast-shear azimuth and the difference in slowness between the fast- and slow-shear. The misfit between predicted and observed sonic measurements (i.e. fast-shear azimuth and slownesses) is then optimized in order to discriminate depth zones with an elastic medium as being influenced by the presence of open natural fractures, closed natural fractures and fractures induced by non-equal principal stress effects.
Owner:SCHLUMBERGER TECH CORP
Method for detecting shear-wave splitting fracture
The invention discloses a method for detecting a shear-wave splitting fracture in geophysical prospecting operation for petroleum. The method comprises the following steps of: acquiring azimuth angle gather data volumes; determining fracture development situation, and overlapping azimuth angle gather data at different angles to form a plurality of overlapped data volumes; determining an overlapped data volume as a reference azimuth data volume according to unknown work area construction and fracture characteristics; performing time difference operation on the reference azimuth data volume and other overlapped data volumes, and thus obtaining the time difference of an event; and calculating and defining other azimuth angles, extracting time difference gather data volumes, determining maximum time difference, and detecting fracture development azimuth and density. A shear-wave splitting prediction fracture theory is applied to practice, a method for quantitatively describing a fracture type reservoir is provided, and the prediction accuracy of the fracture type reservoir is improved.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Method for carrying out profile control on fracture-type oil reservoir
The invention relates to a method for carrying out profile control on a fracture-type oil reservoir, which comprises the following steps of injecting 0.1 to 0.3 percent of zwitterionic polymer solution into an oil layer; suspending and carrying expansion-retarding 0.2 to 1.0 percent of salt-resistance high-intensity water-absorbent resin particles by a zwitterionic gel profile control agent and injecting the obtained product into a fracture of the oil layer; injecting 30 to 50m<3> of acrylamide gel; suspending 0.2 to 0.5 percent of water insoluble solid particles by the zwitterionic gel profile control agent and injecting the obtained product into the fracture; and alternately injecting 1,000m<3> of partially hydrolyzed polyacrylamide solution with a molecular weight of 15 million, degree of hydrolysis of 10 to 20 percent and 1,000m<3> of petroleum sulfonate surfactant solution, wherein the concentration of the hydrolyzed polyacrylamide solution is 0.05 to 0.15 percent and the concentration of the petroleum sulfonate surfactant solution is 0.2 to 0.5. According to the method, profile control and flooding effects of the fracture-type oil reservoir can be improved; water content of a fracture main direction oil well is reduced; and yield of crude oil of a fracture side direction oil well is increased.
Owner:PETROCHINA CO LTD
Reservoir fracture identification method and imaging logging reservoir fracture identification method
ActiveCN104977617AOvercome the problem of missing explanationsGuaranteed accuracySeismic signal processingSeismology for water-loggingPorosityLithology
The invention discloses a reservoir fracture identification method and an imaging logging reservoir fracture identification method, wherein the reservoir fracture identification method comprises the steps of a step of determining a porosity curve, wherein an acoustic porosity curve and a density porosity curve of a to-be-analyzed reservoir are respectively calculated based on the lithological information of the to-be-analyzed reservoir according to a preset reservoir curve model; a step of determining a porosity curve assembly, wherein the acoustic porosity curve is superposed with the density porosity curve as the porosity curve assembly of the to-be-analyzed reservoir at the dry layer of the to-be-analyzed reservoir; and a step of identifying the type of the fracture, wherein at other layers of the to-be-analyzed reservoir, the acoustic porosity curve is compared with the density porosity curve in the porosity curve assembly, and determining the fracture type of a corresponding layer segment based on the comparison result according to the preset fracture model. The reservoir fracture identification method and the imaging logging reservoir fracture identification method can perform reservoir fracture type identification visually, quickly and reliably, and furthermore can effectively settle a multi-solution problem and a solution omission problem in an existing method.
Owner:CHINA PETROLEUM & CHEM CORP +1
Method for calculating fracture description parameter quantitatively
ActiveCN107203005AImprove performanceImprove robustnessSeismic signal processingFracture typePorosity
The invention provides a method for calculating a fracture description parameter. The method of the invention aims to obtain a fracture development strength body having relatively stable anisotropy medium characteristics based on an early stage pre-stack fracture detection technology, using a Bayes classification method through establishing a rock physic model of the fracture to expand a fracture intensity and a fracture porosity which are obtained through well logging to development bodies of fracture intensity and fracture porosity of a whole working area in order to provide accurate fracture prediction result to comprehensive modeling and spatial distribution of a fracture type reservoir which are carried in a later stage. The method for calculating the fracture description parameter quantitatively overcomes problems that a regular rock physical parameter inversion method is completely based on a statistics hypothesis and performs black box inversion. Besides, the fracture physical parameter inversion is performed on the basis of practical data of a carbonate rock reservoir in western China, and has achieved a satisfied result.
Owner:CHINA PETROLEUM & CHEM CORP +1
Micro-seismic monitoring three-component sensor
ActiveCN103412322AImprove recognition accuracyImproving the accuracy of fracture type identificationSeismic signal receiversSensor arrayFracture type
The invention discloses a micro-seismic monitoring three-component sensor which comprises a column-shaped sensor base. An axial sensor core, a first radial sensor core and a second radial sensor core are sequentially arranged from one end to the other end of the sensor base, wherein the axial sensor core, the first radial sensor core and the second radial sensor core are all of a column shape and are perpendicular to one another, the center line of the axial sensor core coincides with the center line of the sensor base, the sensor base is arranged in a stainless steel shell, an outer hexagonal installation connector is arranged at one end of the stainless steel shell, a bottom cover is arranged at the other end of the stainless steel shell, a connection threaded hole is formed in the bottom cover, and an anchoring agent container is connected with the bottom cover through a connection stud matched with the connection threaded hole. By means of the micro-seismic monitoring three-component sensor, identification accuracy of arrival time of a P wave and an S wave under the background with high environment noise is improved, identification accuracy of wave arriving first motion is improved, and therefore the identification accuracy of fracture types of rock is improved; locating accuracy and correctness of energy calculation of micro-seismic sources are improved, especially for a micro-seismic signal outside a sensor array.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
Geomechanics based design method for deflecting azimuth of fracture type stratal directional well
ActiveCN105574251AEasy to operateHigh degree of modificationGeometric CADData processing applicationsPorosityFracture type
The invention relates to a geomechanics based design method for a deflecting azimuth of a fracture type stratal directional well. The method comprises the following steps: determining a directional well implementation purpose layer and obtaining the natural fracture occurrence, the permeability, the porosity, rock mechanics parameters and ground stress data of a reservoir through field data and an indoor experiment; drawing a hydraulic fracture and natural fracture communication capacity chart to determine a directional well deflecting azimuth range psi1 meeting the requirement of an optimal fracture communication degree; drawing a deflecting azimuth and shaft discharge capacity relationship chart to determine a directional well deflecting azimuth range psi2 meeting the requirement of the maximum discharge capacity; drawing a deflecting azimuth and shaft stability relationship chart to determine a directional well deflecting azimuth range psi3 meeting the requirement of the drilling borehole wall stability; and considering common influence of three factors of the fracture communication capacity, the shaft discharge capacity and the borehole stability to determine an optimal directional well deflecting azimuth range {psi1 n psi2 n psi3}. The design method has the comprehensive benefits of simplicity for operation, easiness for popularization, capability of ensuring the safety of a drilling shaft, high transform degree and high mining yield.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Nonequivalent modeling method and device for heterogeneous reservoir stratum
The embodiment of the invention provides a nonequivalent modeling method and a device for a heterogeneous reservoir stratum. The nonequivalent modeling method comprises the following steps: selecting a field outcrop of the heterogeneous reservoir stratum and analyzing the field outcrop to obtain an internal structure of the heterogeneous reservoir stratum; collecting imaging logging data, carrying out statistic analysis on the imaging logging data, dividing the heterogeneous reservoir stratum into a cave type, a fracture type and a fracture-cave type; and collecting conventional logging data and determining elastic parameters of a fracture-cave body in different positions according to the logging data so as to form a nonequivalent model of the heterogeneous reservoir stratum. According to the nonequivalent modeling method and the device disclosed by the invention, by analyzing the imaging logging data, the trend and distribution characteristics of fracture and caves of a carbonatite heterogeneous reservoir stratum are researched in microcosm and the guarantee can be provided for finely engraving the fracture-cave body; and according to the statistical analysis of the logging data, all elastic parameters of the fracture-cave reservoir stratum are accurately positioned.
Owner:PETROCHINA CO LTD
Experimental facility for integrity of fractured horizontal shaft
InactiveCN106703777AImprove integrityExtended service lifeSurveyConstructionsEngineeringHigh pressure
The invention relates to an experimental facility for integrity of a fractured horizontal shaft. The experimental facility for integrity of the fractured horizontal shaft mainly comprises a rectangular cavity, a heating device, an internal pressure device, a horizontal shaft and a seal detecting device. Bullet holes and artificial fracture models are distributed in the horizontal shaft at intervals. Pressure sensors are uniformly mounted in the rectangular cavity, and strain gauges are attached to the wall of the shaft. A heating bar is arranged in the rectangular cavity, and the heating bar in the rectangular cavity and a heating bar in the shaft form the heating device. An internal pressure pump applies pressure to the inside of the shaft through a pressure applying opening; a cement paste storage tank injects cement paste into the rectangular cavity through a liquid inlet; a high-pressure gas source applies high pressure to one end of the rectangular cavity, gas flow is measured at the other end to measure the sealing property of concrete blocks; and by a universal support, working conditions of different hole drift angles can be adjusted. Change conditions of shaft stress, cement internal stress distribution and integrity of the shaft can be simulated under the effects of fracture pressure and temperature of the horizontal shaft, and influence of combination of different hole types and different fracture types to the integrity of the shaft can also be simulated.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Well pattern spacing method of triangular horizontal well
ActiveCN105822284AIncrease productionMeet the requirements of long-term stable water injection to supplement energyFluid removalFracture typeOil field
The invention belongs to the technical field of oilfield development, and provides a well pattern spacing method of a triangular horizontal well. The well pattern spacing method has the advantages that 1, the methods of oil reservoir engineering, numerical simulation and mine statistics are comprehensively utilized, and technical indexes and economic indexes are simultaneously considered; 2, the capacity of large-scale volume fracturing is realized, and the output of single well is greatly improved; 3, the geology and technology are integrated; the different reservoir features and a targeted modification technology are sufficiently considered in the well pattern optimizing process, and the requirements of long-time stable water injection and energy supplementing can be simultaneously met; the purposes of effectively injecting water and supplementing energy can be realized under the condition of large-scale volume fracturing, an effective displacement fracturing system is established, the risk of fracture type water flooding is decreased, and the preliminary gradually-decreased horizontal well spacing type is reduced.
Owner:PETROCHINA CO LTD
Fracture fault detection method for integrated framework of bogie side surfaces of railway wagon
ActiveCN111091544AImprove efficiencyImprove accuracyImage enhancementImage analysisFracture typeData set
The invention discloses a fracture fault detection method for an integrated framework of bogie side surfaces of a railway wagon, and belongs to the technical field of railway wagon equipment safety. The invention aims to solve the problems of low accuracy and low efficiency due to the fact that the fault detection of an integrated architecture image is carried out in a manual mode in the prior art. The method comprises the following steps: distinguishing detection categories of a sample image into fracture, water flow, chalk and shadow; configuring mark information for each sample image; training an initialized deep residual network and the Faster rcnn network based on a sample data set to obtain a weight coefficient of image processing; acquiring each to-be-faulted identification i; inputting a deep residual network and a Faster rcnn network, and identifying a target candidate box in each to-be-faulted identification image as a fracture, a water flow, a chalk and a shadow based on theweight coefficient; and processing each to-be-faulted identification including the fracture type, and giving an alarm for the determined fracture fault. The method is used for fracture detection ofthe integrated framework of the bogie side surfaces.
Owner:HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
Acoustic emission early-warning method for underground coal unstability dynamic disasters
ActiveCN103883352ASolving scientific problems of acoustic emission precursors to damage instabilityImprove accuracyMining devicesFracture typeStress conditions
The invention discloses an acoustic emission early-warning method for underground coal unstability dynamic disasters. The method comprises the following steps that first, monitored object coal is sampled, and the sample is processed to be a standard mechanical test piece; second, a compression fracture mechanical test is carried out on the standard mechanical test piece, and the fracture type of the test piece is determined; third, the stress condition of the monitored coal is analyzed, and the fracture type of the monitored coal is determined according to the fracture type of the standard mechanical test piece; fourth, an acoustic emission instrument is used for monitoring the coal, and collecting acoustic emission signals; fifth, according to the fracture type of the monitored coal and the acoustic emission signals, distinguishing of coal stability is carried out in a classified mode. The early-warning method of the coal unstability dynamic disasters solves the scientific problem of acoustic emission omen of coal and rock mass fracture unstability, and effectively improves accuracy for monitoring and early-warning of coal unstability dynamic disasters through the acoustic emission method.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD +1
Bone image processing method, electronic device and storage medium
PendingCN110310723AReduce manual workloadReduce missed diagnosis rateImage enhancementImage analysisFracture typePattern recognition
The present invention discloses a bone image processing method, an electronic device and a computer readable storage medium. The method includes the following steps: splitting a bone image, and acquiring a bone part in the bone image as a label image; inputting the label image into a fused neural network to obtain a fused output result, wherein the fused neural network includes a classification neural network and a detection neural network; and outputting the fused output result, wherein the fused output result includes the fracture location and fracture probability of the bone image. A doctorcan know the possible location of the fracture in the bone image according to the fused output result including the fracture type, location and probability of the bone image without full-coverage untargeted examination of the bone image, so the manual workload of the fracture detection is greatly reduced, and the rate of missed diagnosis is also greatly reduced.
Owner:QINGDAO HISENSE MEDICAL EQUIP
Visual crack type rock plate acid liquor etching experimental device and method
ActiveCN106437671AVisual observation of etching rulesVisual observation of flow conditionsFluid removalFracture typePulp and paper industry
Owner:SOUTHWEST PETROLEUM UNIV
Orthopedics preoperative planning-oriented implant feature parameter editing method
ActiveCN108766539AImprove design qualityImprove design efficiencyMedical simulationDesign optimisation/simulationFracture typePostoperative complication
The invention discloses an orthopedics preoperative planning-oriented implant feature parameter editing method. The orthopedics preoperative planning-oriented implant feature parameter editing methodincludes the following steps: a first step, constructing an implant feature model library, and classifying implants according to fracture information and implant feature parameters; a second step, selecting an implant model from the implant feature model library according to three-dimensional morphological parameters and the fracture type of a patient; and a third step: adjusting the feature parameters of the selected implant model to meet the stress requirements of the individual patient. The invention can design an implant meeting the anatomical features and conditions of the individual patient for the individual patient, and is fast and efficient; and the designed implant can match the individual patient well, and a series of postoperative complications such as the restoration loss after fixation, the non-union of the fracture or malunion healing can be reduced.
Owner:XUZHOU MEDICAL UNIV
Synchronous prediction method for horizontal fractures and vertical fractures of orthogonal medium fracture type reservoir
ActiveCN111208560AAchieve forecastReduce crosstalk effectsSeismic signal processingFracture typeScattering function
The invention provides a synchronous prediction method for horizontal fractures and vertical fractures of an orthogonal medium fracture type reservoir. The method comprises steps of firstly, expressing an orthotropic disturbance matrix by utilizing longitudinal and transverse wave moduli and fracture weakness; secondly, deriving an orthogonal medium linearized longitudinal wave reflection coefficient equation represented by longitudinal and transverse wave moduli, density and crack weakness by utilizing a scattering function and a disturbance matrix; and lastly, expressing the linearized longitudinal wave reflection coefficient as a Fourier series expression, and establishing a three-step inversion method to estimate longitudinal and transverse wave moduli, density and fracture weakness, and thereby realizing multi-parameter inversion of the orthotropic medium. The method is advantaged in that on the basis of a Scheenberg linear sliding model, that crack weakness with more definite physical significance is directly used for representing the development conditions of horizontal cracks and vertical cracks in an orthogonal medium is proposed; an orthogonal medium longitudinal wave reflection coefficient equation is expressed as a Fourier series form, and crosstalk influence of crack weakness caused by horizontal cracks and crack weakness caused by vertical cracks is reduced.
Owner:CENT SOUTH UNIV +1
Environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus
The invention relates to an environment friendly outdoor AC high voltage full-sealed combined electric apparatus which uses environmental friendly gases to replace the gas of SF6 for solving the problem of a poisonous low fluorin compound generated by the gas of SF6 used for arc extinguishing. A double-fracture type vacuum arc extinguishing chamber is adopted for arc extinguishing; a compound insulating bushing is arranged at the two sides of the arc extinguishing chamber; a three-power position isolating switch is arranged in the lower surface; the lower part of the bushing is sheathed with an electromagnetic mutual inductor or a photoelectric mutual inductor; high pure nitrogen is filled in the bushing and a tank body for internal isolation; the high pure nitrogen is adopted between the vacuum arc extinguishing chamber and the tank body for internal isolation; the fracture of each double-fracture type vacuum arc extinguishing chamber is provided with an equalizing capacitor; the three-power position isolating switch adopts the high pure nitrogen as the internal isolation, thus shortening the mounting time and improving the reliability and safety of the device. The environment pollution is avoided in particular as the gas of SF6 is not used.
Owner:铁岭市世纪电力设备有限公司 +1
Composite shoulder prosthesis
The invention is a modular composite shoulder prosthesis 64, whose construct incorporates a solid autogenous bone graft 50 to be used to replace the upper humerus in certain fracture types. The prosthesis comprises a stem 22 to be inserted in the canal of the humerus, an intermediary part reduced to a medial pillar 24 and a head which is a generally spherical cap 20 that is hollow. The head of the prosthesis being hollow and coated with an osteoconductive material, the lateral aspect of the medial pillar as well as the upper part of the stem being also coated with the same material, an epiphyso-metaphyseal space is delineated in which a solid autogenous bone graft is fitted. Union can be achieved between the coated parts of the prosthesis, the bone graft 50 and the tuberosities reattached to the humerus shaft, secured to holes 62 of the medial pillar and between themselves.
Owner:CYPRIEN JEAN MAXWELL +4
Rock core-based fracture continuous-characterization method
The invention relates to a rock core-based fracture continuous-characterization method. The measurement accuracy is determined based on actually measured key parameters such as central depth, length, opening degree and filling degree of a rock core fracture as well as a filling material, an angle of inclination and a rock core diameter; a fracture development degree calculation method based on a unit rock core length and related parameters is designed, so that continuous and quantitative characterization can be carried out on fracture development degree, the calculation accuracy of rock core fracture density and a surface fracture rate is improved, and reliable data information guarantee is provided for fracture quantitative prediction. According to the method, the actually measured parameters of the rock core fracture are combined with actual characterization accuracy, so that the distribution situation and concentration degree of the fracture can be continuously represented along a vertical direction, so that the actual demands of exploration and development of oil and gas, especially, fracture type and unconventional exploration and development of the oil and the gas can be met.
Owner:HUANENG CLEAN ENERGY RES INST +1
Sunken mine high-flow and high-flow-rate pipe fracture type karst gushing water blockage method
The invention discloses a sunken mine high-flow and high-flow-rate pipe fracture type karst gushing water blockage method. The method comprises the following steps: multiple non-continuous grouting curtains are constructed in a low-resistance rich water area; a flow control pulp stop pad is arranged in a water gushing port of a karst pipe for controlling the flow of a water outlet through a drainage pipe with a valve; the porous segmented united grouting is adopted; multiple holes are segmented to high-connectivity drilling holes of different non-continuous curtains; and the united grouting is synchronous grouting of near-end holes and far-end holes. Multiple sections of compact curtain walls are constructed to stop a fracture water passing channel; the flow control pulp stop pad is arranged in the water gushing port for reducing the flow rate of water currents in the karst pipe; and the pulp reservation quantity and the filling distance are increased, so that the pulp is effectively condensed to block the pipe. The technology system of non-continuous curtains+flow control pulp stop pad+key channel exploration and grouting finally realizes the curtain closure and the karst pipe blockage, thoroughly blocks the karst open sunken mining water gushing, guarantees no streaming phenomenon of karst water, and can effectively save the cost.
Owner:SHANDONG UNIV +3
Antifouling paint and preparation method thereof
InactiveCN107118683ASimple manufacturing methodEfficient releaseAntifouling/underwater paintsPaints with biocidesFracture typeOrganic solvent
The invention discloses an antifouling paint which comprises the following components in parts by weight: 20-40 parts of main chain fracture type degradable polyurethane resin, 20-40 parts of cuprous oxide, 20-30 parts of a pigment filler, 5-15 parts of an auxiliary anti-pollution auxiliary, 2-5 parts of an auxiliary and 10-20 parts of an organic solvent. Compared with the prior art, the antifouling paint has the advantages of good antifouling effect, long release time, environmental friendliness and the like. In addition, the invention further discloses a preparation method of the antifouling paint.
Owner:LINGDONG NUCLEAR POWER +3
Grouting reinforcement effect three-dimensional spatial data acquisition method for weak broken rock body
ActiveCN105625292APerfect extraction methodImprove the analysis methodIn situ soil foundationSoil preservationSoil mechanicsData acquisition
The invention discloses a grouting reinforcement effect three-dimensional spatial data acquisition method for a weak broken rock body. The grouting reinforcement effect three-dimensional spatial data acquisition method for the weak broken rock body comprises the following steps that (1) a multi-order high-recognition-degree grouting model test is implemented; (2) the arrangement of measuring lines is observed and the exposure of a profile is measured; (3) the characteristics of slurry gel are measured and recorded, and an indoor experimental sample is obtained; (4) the three-dimensional distribution pattern of the characteristics of a reinforcing body is described; (5) an indoor soil mechanics test and an indoor hydraulics test are implemented; and (6) the grout diffusion mechanism and the grout reinforcement mode are analyzed. The grouting reinforcement mode can be of a single type such as a compaction type, a permeation type and a fracture type or be of a combined type such as a compaction-fracture type and a permeation-fracture type. A quantitative research method for checking the grouting effect and determining the three-dimensional spatial data of the reinforcing body in the grouting model test is provided for the first time, and the problem that information is excessively lost and cannot be mined comprehensively in the grouting test is solved.
Owner:SHANDONG UNIV OF SCI & TECH
Anti-fracture type steel structure for building
InactiveCN107905357AEnhanced Kang fracture performanceImprove securityBuilding constructionsFracture typeGlass fiber
The invention discloses an anti-fracture type steel structure for a building. The anti-fracture type steel structure comprises a steel structure body, a steel structure internal layer and an anti-fracture layer. The steel structure internal layer is arranged in the steel structure body, the anti-fracture layer is arranged between the steel structure body and the steel structure internal layer, andthe anti-fracture layer is made of glass fiber. According to the anti-fracture type steel structure for the building, in this way, the anti-fracture layer is adopted to be arranged between the steelstructure body and the steel structure internal layer, the anti-fracture performance of the steel structure is greatly enhanced, the safety coefficient is increased, the structure is novel, the performance is stable, the anti-fracture performance is good, safety and reliability are achieved, and convenience and practicability are further achieved, and the anti-fracture type steel structure for thebuilding has a wide market prospect on popularization.
Owner:江苏宏宇重工科技有限公司
Fracture type reservoir earthquake physical model material, physical model and manufacturing method
The invention discloses material for a fractured reservoir earthquake physical model. The material comprises quartz sand, epoxy resin, a curing agent and a water-soluble polymer film. The invention further discloses a manufacturing method of the fracture type reservoir earthquake physical model and the prepared fracture type reservoir earthquake physical model. According to the invention, the fractured reservoir earthquake physical model is constructed by embedding the water-soluble polymer material into artificial sandstones. The proportions of the water-soluble polymer material in the mixedmaterial are different; the fracture type reservoir earthquake physical model with the sound wave propagation speed difference range between 100 m / s and 500 m / s in each direction can be prepared. Compared with a conventional fracture type earthquake physical model, the invention improves the defects in a conventional fracture type earthquake physical model technology, can obtain an earthquake physical model with higher stability and similarity, and can obtain more accurate experiment data.
Owner:CHINA PETROLEUM & CHEM CORP +1
Three-phase stereoscopic fracture-type rolled iron core
ActiveCN103247424AGood workmanshipReduce additional lossTransformers/inductances magnetic coresLow noiseFracture type
The invention relates to a three-phase stereoscopic fracture-type rolled iron core which is used for a transformer of the three-phase stereoscopic fracture-type rolled iron core. The three-phase stereoscopic fracture-type rolled iron core comprises three identical single-frame iron cores, wherein each single-frame iron core is formed by sequentially connecting a plurality of inner layer iron core sheets and a plurality of outer layer iron core sheets in a sleeving manner; an upper fracture seam is only formed at the upper yoke part of each inner layer iron core sheet of each single-frame iron core; the upper fracture seams of the two adjacent inner layer iron core sheets are formed in a staggered manner; each outer layer iron core sheet of each single-frame iron core is provided with a left fracture seam at the upper part of a left side iron core pillar, close to the upper yoke part, and is provided with a right fracture seam at the upper part of a right side iron core pillar, close to the upper yoke part; the left fracture seams of the two adjacent outer layer iron core sheets are formed in a staggered manner; and the right fracture seams of the two adjacent outer layer iron core sheets are formed in a staggered manner. The transformer made of the three-phase stereoscopic fracture-type rolled iron core has the characteristics of superior electromagnetic performance, short magnetic circuit, low field current, low no-load loss, small harmonic wave, low noise, small size, light weight, material conservation, energy conservation and the like.
Owner:孙晖 +1
Ankle fracture and ligament injury diagnosis method based on machine learning
ActiveCN112598661AGuaranteed performanceReduce overfittingImage enhancementImage analysisFracture typeDiagnosis methods
The invention discloses an ankle fracture and ligament injury diagnosis method based on machine learning. The method comprises the steps of determining a computer feature extraction region, marking the classification of all X-ray image fracture types in each region, and marking the ligament injury type of a patient corresponding to an X-ray image, i.e., injury and non-injury, preprocessing the X-ray image to obtain a foreground image of the ankle skeleton, building an ankle fracture prediction model based on a BoVW+SVM algorithm, searching a frequent item set between bone injuries and ligamentinjuries in a case through an Apriori algorithm, mining association rules between affairs, taking bone injury results obtained through SVM classification as antecedent input, and predicting the ligament injuries and hidden bone injuries. By means of the method, a surgeon can be assisted in automatically reading the ankle skeleton X-ray image, diagnosis and treatment time is saved, and the diagnosis and treatment effect of ankle injuries is improved.
Owner:HEBEI UNIV OF TECH
Fracture type prepuce ligation cutting device
The invention relates to a prepuce binding cutter. The current prepuce binding cutter can not swell as a penis erects. For the reason, the invention comprises a binding cutting ring and an elastic binding part. The binding cutting ring has certain elasticity and a circular socket is arranged on the outer circumference of the binding cutting ring. The prepuce is bond into the circular socket. The invention is characterized in that the binding cutting ring is provided with two or more pairs of heaves that are arranged at one side of the circular socket and the connection of each pair of the heaves can be cut or relieved without affecting the binding of the prepuce. The cutting binding ring is provided with two or more pairs of the heaves. After the connection of the heaves is cut or relieved, the cutting binding ring is divided into two or three separated arc segments. The fractographic prepuce binding cutter provided by the invention has the advantages of simple structure, convenient use, low cost, less suffering, which is applicable to a prepuce cutting operation.
Owner:谭晓雯 +1
Reinforced concrete structure crack trend calculation method based on moment tensor
The invention discloses a reinforced concrete structure crack trend calculation method based on a moment tensor, and the method comprises the steps: applying a load to a reinforced concrete flexural member, collecting an acoustic emission signal when a crack is generated, and reading the amplitude of P-wave initial motion in a signal waveform received by a sensor; analyzing characteristic values of the moment tensors of different crack types based on mathematical analysis and a mechanical model, and establishing a crack type judgment standard; substituting the collected crack amplitude into amoment tensor equation set to obtain a moment tensor of the corresponding crack; normalizing the fracture moment tensor characteristic value, and judging the fracture type according to a fracture typejudgment standard; and calculating a feature vector corresponding to the crack moment tensor feature value, calculating a motion vector of the crack according to the feature vector, and determining an included angle between the motion vector and a coordinate axis, thereby determining the crack trend. According to the method, the position and trend of the stress crack of the reinforced concrete member can be determined, and a new way is provided for reinforced concrete structure health monitoring and disaster early warning.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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