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56results about How to "With detection ability" patented technology

Video flame detecting method based on multi-feature fusion technology

InactiveCN103116746AExcellent capture qualityChoose from a wide range of applicationsCharacter and pattern recognitionDecision modelMulti target tracking
The invention provides a video flame detecting method based on a multi-feature fusion technology. The video flame detecting method includes firstly using a cumulative geometrical independent component analysis (C-GICA) method to capture a moving target in combination with a flame color decision model, tracking moving targets in current and historical frames in combination with a multi-target tracking technology based on moving target areas, extracting color features, edge features, circularity degrees and textural features of the targets, inputting the features into a back propagation (BP) neural network, and further detecting flames after the decision of the BP neural network. According to the video flame detecting method, spatial-temporal features of the moving features, color features, textural features and the like are comprehensively applied, the defects of algorithms of existing video flame detecting technologies are overcome, and reliability and applicability of the video flame detecting method are effectively improved.
Owner:UNIV OF SCI & TECH OF CHINA

MTHFR and MTRR gene polymorphism detection primer group and kit

The invention discloses an MTHFR and MTRR gene polymorphism detection primer group and a kit. Mutation primers and probes aiming at three genetic loci have the advantages of being high in specificity and sensitivity. The prepared kit can detect MTHFR677, MTHFR1298 and MTRR66 gene polymorphism conditions, operation is simple, the experimental period is short, and the primer group and the kit are safe, free of toxicity, low in cost and suitable for clinical large-scale use and popularization.
Owner:武汉海吉力生物科技有限公司

Phase conjugate reflection bi-pass lighting confocal microscopic device

The invention discloses a phase conjugate reflection bi-pass lighting confocal microscopic device, belonging to an optics measuring microtechnique. A collimation beam expander and a spectroscope are configured on a laser direct light path in sequence; a focusing objective lens and a three-dimensional micrometric displacement objective table are configured on a spectroscope reflecting light path; a collecting objective lens is configured on a spectroscope transmission light path; a collecting objective lens converging light is conducted to a photoelectric detector through conduction optical fibers; an ellipsoid reflecting lens is also configured on the spectroscope reflecting light path; a near focus of the ellipsoid reflecting lens is located on a surface of a sample put on the three-dimensional micrometric displacement objective table; and a phase conjugate reflecting lens is configured at a remote focus of the ellipsoid reflecting lens. According to the device, bi-pass lighting to a large curvature convex surface is carried out by adopting a characteristic that a reflection ray as a phase conjugate light wave of an incidence light of the phase conjugate reflecting lens can go back along an original way in combination with a characteristic that the ellipsoid reflecting lens is provided with a pair of isoplanatic image formation conjugate focuses, so that the device has a measurement ability of the large curvature convex surface and a characteristic of a high axial resolution force.
Owner:HARBIN INST OF TECH

Method and device for detecting macro virus of files

The embodiment of the invention provides a method and a device for detecting macro virus of files, wherein the method comprises the steps of matching macro codes of the files to be detected with behavior codes in a code base, wherein the behavior codes are used for indicating the macro codes required by realizing fixed macro virus behavior; and judging whether the files to be detected are infected with the macro virus according to the matching result. The embodiment of the invention can improve the detection capability of the macro virus of the files.
Owner:BEIJING QIHOO TECH CO LTD +1

Miniaturized airborne zoom lens with large zooming ratio

The invention relates to a miniaturized airborne zoom lens with large zooming ratio. A front fixing group of which the focal power is positive, a zooming group of which the focal power is negative, a compensating group of which the focal power is negative, a variable diaphragm component, a back fixing group of which the focal power is positive and a switching component of color filters are respectively arranged along the incidence direction of light rays from left to right; the front fixing group is sequentially provided with a gluing group which is formed through sealed connection of a negative crescent lens and a double-convex lens, a positive crescent lens I and a positive crescent lens II; the zooming group is provided with a gluing group which is formed through sealed connection of three lenses which include a double-concave lens, a double-convex lens and a double-concave lens; the compensating group is provided with a gluing group which is formed through sealed connection of a double-concave lens and a positive crescent lens; and the front part of the back fixing group is sequentially provided with a double-convex lens and a positive crescent lens, the middle part is sequentially provided with a gluing group which is formed through sealed connection of a double-convex lens and a double-concave lens, a double-convex lens and a negative crescent lens, and the back part is provided with a double-convex lens. The miniaturized airborne zoom lens with large zooming ratio has the functions of continuous electric zooming, electric focusing, electric dimming, color filters switching, focal distance real-time feedback and the like.
Owner:FUJIAN FORECAM OPTICS CO LTD

Full-automatic mobile phone screen assembling device

The invention discloses a full-automatic mobile phone screen assembling device, and relates to the technical field of mobile phone parts processing. The invention provides the technical points that the full-automatic mobile phone screen assembling device comprises a conveying assembly, a release film tearing assembly, a tooling assembly, a first pick-and-place manipulator assembly and a second pick-and-place manipulator assembly, wherein the conveying assembly comprises a first conveyer belt, a second conveyer belt and a third conveyer belt; the release film tearing assembly is arranged at thetail end of the second conveyer belt; the tooling assembly comprises a first vacuum chuck group and a first screw rod driving device; the first pick-and-place manipulator assembly comprises a first manipulator device and a second screw rod driving device; and the second pick-and-place manipulator assembly comprises a second manipulator device and a third screw rod driving device. The full-automatic mobile phone screen assembling device provided by the invention has the advantage of automatically accomplishing screen assembling.
Owner:深圳市精运达自动化设备有限公司

ISP anomalous traffic detection method and system

The invention discloses an ISP anomalous traffic detection method and a system, belonging to the field of information safety. The method comprises the following steps: capturing a network data packet; distinguishing a dangerous network data stream to determine a dangerous area; extracting the dangerous mode of the dangerous network data stream sent to the dangerous area; matching the dangerous mode with a memory detector, and meanwhile updating the antibody concentration of the memory detector; and according to the antibody concentration of the memory detector, determining the value at risk of the anomalous traffic of a network. The system of the invention comprises a network data packet acquisition module, a danger identification module, a dangerous area identification module, a network anomalous traffic mode identification module and a danger assessment module. The invention can solve the problems of low misinformation rate, poor self-adaption ability or no self-adaption ability. The invention also adopts the tolerance mechanism of the network anomalous traffic to cause the system to have the ability of detecting the anomalous network traffic caused by a large number of sudden normal network accesses.
Owner:四川通信科研规划设计有限责任公司

Incremental small sample target detection method based on meta-learning

The invention relates to an incremental small sample target detection method based on meta-learning, and the method comprises the following steps: 1) constructing an incremental small sample target detection model which comprises a feature extractor, a target locator and a meta-learning device; 2) training an incremental small sample target detection model; 3) carrying out new target positioning and classification according to the trained incremental small sample target detection model. Compared with the prior art, the method has the advantages of few sample requirements, avoidance of forgetting, data privacy protection and the like.
Owner:TONGJI UNIV

Rapid simultaneous detection method for content of copper, zinc and iron in gold mud

The invention relates to a rapid simultaneous detection method for the content of copper, zinc and iron in gold mud. A sample is dissolved by utilizing nitric acid, aqua regia, sulfuric acid and nitric-sulfuric acid; after sulfuric acid is added for smoking, a copper-zinc-iron compound is decomposed to form a corresponding oxide, HAuCl4 is decomposed to form elemental gold, and H<n-1>[AgCln]<-n+1> is decomposed to form silver chloride; after sulfuric acid is added for dissolving salts, the copper iron zinc oxide is dissolved to form sulfate; after ammonia water is added, silver-copper-zinc is transformed into corresponding ammonia complex ions, iron is transformed into iron hydroxide precipitation, and gold and iron are filtered and then separated from filtrate; after the pH value of the filtrate is adjusted by adding sulfuric acid and ammonia water, sodium chloride is added for precipitation of silver, the silver is recovered by filtering, copper in the filtrate is detected by adopting iodometry, and zinc is detected by adopting an EDTA method; and iron is detected by using a potassium dichromate method. The sample consumption is less in a detection process, precious metals can be effectively classified and recovered, the detection process is simplified, the energy consumption is reduced, and the detection efficiency is improved.
Owner:山东黄金冶炼有限公司

Leather detection device for leather processing

The invention relates to a detection device, and particularly relates to a leather detection device for leather processing. The technical problem to be solved by the invention is to provide a leatherdetection device for leather processing, which has various detecting capabilities. The leather detection device for leather processing comprises: a first supporting plate, a second supporting plate, amounting plate, a first sliding block, a first connecting plate, a first fixing rod, a second sliding block, a first fixing plate, a first clamping plate and the like; the other end is installed on one side part of the second supporting plate; and a first sliding slot is formed in the top of the mounting plate, the first connecting plate is slidably connected with the first sliding slot through the first sliding block, the first fixing rod is fixedly connected to the top of the first connecting plate, and a second sliding slot is formed in one side part of the first fixing rod. The leather detection device for leather processing provided by the invention achieves the effect of having various detection capabilities.
Owner:广东艾斯瑞仪器科技有限公司

Microwave laser cloud and rain aerosol composite detection radar with high space-time matching

The invention provides a microwave laser cloud and rain aerosol composite detection radar with high space-time matching. The microwave laser cloud and rain aerosol composite detection radar comprisesa millimeter wave radar subsystem, a laser radar subsystem and a system management and data processing subsystem. By adopting a microwave radar antenna electric axis and laser radar telescope opticalaxis calibration technology and a transmitter sampling clock synchronization technology, the microwave radar and the laser radar transmit microwaves and laser to a same cloud layer at the same time and in a same place; microwave and laser echo signals backscattered by the cloud and the aerosol are respectively received by a microwave antenna and an optical telescope, and detection acquisition andprocessing of the microwave and laser echo signals are respectively realized through a microwave detection channel and an optical detection channel; and finally, composite inversion is carried out onthe microwave echo data and the laser echo data through a multi-source data joint inversion technology. The microwave laser composite detection radar realizes combined remote sensing detection and quantitative description of high space-time synchronization of different clouds, rain and aerosols through microwave radar data and laser radar data composite inversion.
Owner:BEIJING RES INST OF TELEMETRY +1

Wheel type probe capable of detecting rail bottoms

The invention provides a wheel type probe capable of detecting rail bottoms. The wheel type probe comprises a fixing module, a main 45-degree transducer, an auxiliary 45-degree transducer, a 0-degree transducer and a 70-degree transducer. The main 45-degree transducer, the auxiliary 45-degree transducer, the 0-degree transducer and the 70-degree transducer are fixed onto a wheel type probe body by the aid of the fixing module; the main 45-degree transducer is used for transmitting ultrasonic waves to rail waist regions and rail bottom regions and receiving ultrasonic waves reflected by the rail waist regions and the rail bottom regions; the auxiliary 45-degree transducer is used for receiving ultrasonic waves reflected by the rail bottom regions; the 0-degree transducer is used for perpendicularly transmitting ultrasonic waves to steel rail treads, receiving ultrasonic waves reflected by the steel rail treads, rail head regions, the rail waist regions and the rail bottom regions and monitoring states of the wheel type probe body; the 70-degree transducer is used for transmitting ultrasonic waves to the rail head regions and receiving ultrasonic waves reflected by the rail head regions.
Owner:CHINA ACADEMY OF RAILWAY SCI CORP LTD +2

SAR moving target detection method based on adaptive Chirp decomposition

A SAR (Synthetic Aperture Radar) moving target detection method based on the adaptive Chirp decomposition is provided by the invention. The present invention relates to a SAR moving target detection method based on the adaptive Chirp decomposition. The objective of the invention is to solve the problem that the multi-target parameter estimation is inaccurate by employing the current WVD technology. The method concretely comprises the steps: the step 1, performing preprocessing of the SAR echo to obtain a preprocessing result; the step 2, performing adaptive Chirp decomposition to obtain a decomposition result; the step 3, performing time-frequency reconfiguration according to the decomposition result; and the step 4, detecting a target according to the reconstruction result, and obtaining a detection target result. The SAR moving target detection method based on the adaptive Chirp decomposition is used for the SAR moving target detection field.
Owner:HARBIN INST OF TECH

Ion optical excitation afterproduct researching method

The invention relates to the field of optoelectronics and molecular reaction dynamics, and a method for researching products after ion photoexcitation. After ions are accelerated through time-of-flight mass spectrometry and particle mass selectors, they enter a magnetic shield; ion fragments and laser pulses are synchronized to generate ion fragment; set the voltage of the focusing electrode group to zero, and apply a voltage to the mass-selective electrode group, so that the voltage on the electrode increases according to the same slope; after the ion beam fragment passes through the focusing electrode group, a pulsed electric field is applied to the focusing electrode group; After the ions leave the mass selective electrode set, the voltage on the mass selective electrode set is set to zero, and the ions interact with the laser to generate ion fragments and photoelectrons; the ion fragments fly to the focusing electrode set and are reflected, and fly to the ion detection through the mass selective electrode set The photoelectrons generated by the interaction between the ion beam and the laser are emitted, and are accelerated by the extraction electrode and the focusing electrode to reach the electron detector; compare the ion fragments and the photoelectron information.
Owner:天津来津文化科技有限公司

Optical mouse with cursor rotating ability, instrument, portable detection device, and method thereof

ActiveCN103870026AIncreased sensitivityWith sensitive detection abilityInput/output processes for data processingGeneral movementsDisplay device
The inventon provides an optical mouse with a cursor rotating ability, an instrument, a portable detection device and a method thereof. The instrument at least comprises: a moving deivce, which is arranged on a position relative to a reference surface, wherein a plurality of traced articles are arranged on the referece surface; a hole; at least an optical detector; and at least a light source. The instrument utilizes at least an optical detector to generate an image frame, which is represented by an electronic pixel picture, a plurality of images representing the traced articles exist in the electronic pixel picture; the instrument can generate general movement vectors of the traced articles according to the changes of the picture; and the general movement vectors can be divided into a parallel movement part and a rotation movement part. The instrument can rapidly and precisely transmit the displacement vectors and rotation vectors of the related movement to a display screen of a computer or other display screens, and thus the movement of the cursor displayed in the computer or the display screen can be controlled.
Owner:李文杰

Detection method, system and storage medium of embedded office document

ActiveCN108182363ASolve the problem of low detection rateReduce development costsPlatform integrity maintainanceDocument formatConfusion
The invention provides a detection method, system and storage medium of an embedded office document. The method comprises the steps that a process list is obtained, it is judged whether or not office-associated processes occur, if yes, a %TEMP% catalogue is monitored; it is monitored whether the %TEMP% catalogue has an add file or not, if yes, the office-associated processes is suspended, and theadd file is detected, if no, a process file is a normal file. The invention furthers provides a corresponding system to implement the method. According to the detection method, system and storage medium of the embedded office document, self-parsing operation of the office document is used, a released file is detected, a format of the office document does not need to be parsed, the influence of theoffice document confusion on detection can be effectively avoided, and the problem of the low detection rate due to the complexity of the document format is solved.
Owner:HARBIN ANTIY TECH

Hyperspectral high spatial resolution integral view field spectral imaging system used for underwater detection

The invention relates to a hyperspectral high spatial resolution integral view field spectral imaging system used for underwater detection, and solves the problems that the view field acquired by theconventional micro-lens array spectral imaging method is small, high spatial resolution under large view field cannot be realized and only narrow view field detection under the condition of accurate wavelength selection can be realized. The imaging system comprises a sealed box, a front telescope system, a beam splitter, a first imaging lens group, a grayscale detector, a first collimating lens group, a micro-lens array unit, a second imaging lens group, a diffraction grating and a spectrum detector. The light through the front telescope system enters the beam splitter, wherein one path of light maintains the original incident direction to transmit and one path of light spreads in the direction perpendicular to the incident direction. The first imaging lens group collects the target lightperpendicular to the incident direction and forms an image to the grayscale detector. The first collimating lens group, the micro-lens array unit, the second imaging lens group, the diffraction grating and the spectrum detector are arranged in turn. The first collimating lens group collimates the light transmitting along the incident direction.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI

An extremely weak small infrared target detection method

The invention belongs to the technical field of infrared target detection, and particularly relates to an extremely weak infrared target detection method, which comprises the following steps of: detecting a maximum value point of which the gray value is greater than a certain threshold value in an image as a central point of a candidate infrared weak target point; analyzing gray scale distributionof the candidate infrared weak small target points, and determining a gray scale segmentation threshold value; performing feature information statistics in the local area of the candidate infrared weak small target point according to the gray segmentation threshold; Establishing a recognition model according to the feature information of the true and false infrared weak small target points; and inputting the feature information of the candidate infrared weak small target points to the recognition model for judgment to obtain the detection information of the candidate infrared weak small target in the image. When the method provided by the invention is used for detecting the infrared weak small target, the feature information of the weak small target can be quickly obtained, and particularly, the method also has a certain detection capability on the extremely weak small target.
Owner:TIANJIN JINHANG INST OF TECH PHYSICS

Method and device for detecting and killing macro virus

The invention discloses a method and device for detecting and killing a macro virus. The method comprises the steps that safety equipment analyzes the document structure of a document to be detected and killed through a processor of calculation equipment; the document structure comprises a category structure corresponding to a data stream of the document; macro codes are extracted from the document to be detected and killed according to the document structure obtained through analyzing; the macro codes extracted by the processor are matched with behavior codes in a behavior code library; the behavior codes are used for representing the macro codes for achieving fixed virus behaviors; whether the document to be detected and killed infects the macro virus is judged according to the matching result; the repairing process is conducted on the document to be detected and killed according to the document structure obtained through analyzing. The method and device for killing the macro virus can improve the detection capability of an unknown macro virus, have the good anti-virus effect, can comprehensively extract the macro codes from the document to be detected and killed, and can carry out repairing processing on various kinds of documents which are infected by the macro virus and need to be detected and killed.
Owner:BEIJING QIHOO TECH CO LTD

Wireless charging foreign matter detection device and method and wireless charging system

The invention provides a wireless charging foreign matter detection device and method and a wireless charging system, and belongs to the technical field of wireless charging. When a foreign matter is close to the upper part of a transmitting coil, heating is serious, but a traditional foreign matter detection scheme based on longitudinal magnetic field detection has a detection blind area above the transmitting coil. The vertical foreign matter detection coil structure is mainly used for detecting a horizontal magnetic field above a transmitting coil, and the problem of detection blind spots is solved. In addition, because the horizontal magnetic field is attenuated slowly along with the height, the structure of the invention has the capability of detecting space foreign matters at a certain height. According to the invention, foreign matter detection can be realized, safety risks caused by foreign matters can be effectively warned, and safety guarantee is provided for electric vehicles, electronic products, automatic guided transport vehicles, unmanned aerial vehicles, logistics robots, automatic driving equipment and the like with wireless charging and wireless power supply systems.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1

High-throughput sequencing method for hypertension treatment drug related genes and application thereof

The invention belongs to the field of hypertension treatment drug related gene detection, and particularly relates to a high-throughput sequencing method for hypertension treatment drug related genesand an application of the high-throughput sequencing method. The invention discloses the high-throughput sequencing method for hypertension treatment drug related genes and the application of the high-throughput sequencing method. The method comprises the following steps: determining hypertension treatment drug related genes, designing a hypertension treatment drug related gene amplification primer combination, extracting genome DNA and detecting concentration, performing multiple a PCR amplification reaction and product purification on the hypertension treatment drug related gene, performingjoint sequence PCR reaction and product purification, performing library quality inspection, performing high-throughput sequencing and the like. The method can realize typing detection of 39 SNP lociof 33 hypertension treatment drug related genes at one time, 27 common hypertension treatment medicines are covered, more detection sites, higher flux, higher data accuracy and higher economy are realized, guidance can be provided for individualized medication of patients, the medicine treatment efficiency is improved, and the risk of toxic and side effects is reduced.
Owner:HANGZHOU HEYI GENE TECH

Rapid analysis method for acid insoluble substances in cyanide gold slime

The invention discloses a rapid analysis method for acid insoluble substances in cyanide gold slime. The rapid analysis method comprises the following steps: through different pretreatment and determination steps, respectively determining the contents of hydrochloric acid insoluble substances, nitric acid insoluble substances and aqua regia insoluble substances in the cyanide gold slime; and calculating the contents of related components. During the process of determining the content of nitric acid insoluble substances, precipitate is repeatedly washed with hot water in the filtering and washing steps until no chloridion is detected; and during the process of determining the content of the aqua regia insoluble substances, precipitate is repeatedly washed with nitric acid in secondary filtering and washing steps until no silver ion is detected. A determination method for the acid insoluble substances in gold slime is provided for the first time according to the properties of the cyanide gold slime and the requirements of the industrial production technology; and the gap in the detection method for the gold slime related to the gold mineral smelting and industry is filled up.
Owner:山东黄金冶炼有限公司

Method and system for detecting overflow loophole based on format heterogeneity and storage medium

The invention provides a method and system for detecting an overflow loophole based on format heterogeneity and a storage medium. The method includes the steps that a network data packet is acquired and restored into files, the files are distributed to each detection branch according to file types, structure features of the file in each detection branch are extracted, target detection features aredetermined through the calculation of the difference degree, then clustering analysis is conducted on the features of each target detection feature, and the obtained file corresponding to the small part of the features is the file with an abnormal structure. According to the method, through a clustering algorithm of the structure features, a small part of abnormal files in a large number of filescan be quickly distinguished, deep detection is conducted only on the abnormal files, the efficiency of detecting the overflow loophole is effectively improved, and an inspired detection capability for unknown overflow loopholes is achieved.
Owner:HARBIN ANTIY TECH

Device used to study ion photoexcitation product

The invention relates to the field of optoelectronics and molecular reaction kinetics, and provides a device used to study an ion photoexcitation product. The device comprises an ion source, an accelerator, a flight time mass spectrum, a particle mass selector, a magnetic shield, an ion beam inlet, a focusing electrode set, a beam concentration electrode, a photoelectron exit, a mass selection electrode set, an ion exit, an ion detector, an electronic background reducing plate, a reflection plate, an ion correction plate, an extraction electrode, a beaming electrode, an electron detector, a laser, a regenerative amplifier, an optical fiber oscillator, an FPGA, a signal generator, an optical signal delay unit, an electrical signal delay unit, a coincidence unit, a computer and a cable. The beam concentration electrode, the reflection plate, the ion correction plate, the extraction electrode and the beaming electrode are all annular. The electronic background reducing plate, the reflection plate, the ion correction plate and the beam concentration electrode are arranged in sequence and located between the focusing electrode set and the mass selection electrode set. Metal meshes are arranged in the holes of five electrode centers of the focusing electrode set and the mass selection electrode set.
Owner:TIANJIN AIKETE MEASUREMENT CONTROL TECH

Method for detecting surface defects of aluminum-silicon plated products

The invention relates to a method for detecting surface defects of aluminum-silicon plated products, and belongs to the technical field of cold-rolled strip steel production quality detection. According to the technical scheme, a detection material group of an aluminum-silicon plated product is established, detection key points of defects of different dimensions are formulated according to different scanning principles and characteristics of a linear array camera and an area-array camera, a two-dimensional defect is detected by using the area-array scanning camera, and a three-dimensional defect is detected by using the linear array scanning camera. The method has the beneficial effects that the detection key points of the linear array camera and the area-array camera are formulated for two-dimensional and three-dimensional defects, the defect classification accuracy of the system is further improved, repeated defect detection is reduced, the storage pressure of the system is relieved,the operation stability of the system is ensured, and the timeliness and accuracy of surface quality judgment of the aluminum-plated silicon product are improved.
Owner:TANGSHAN IRON & STEEL GROUP +1

Detection device and detection method for metal corrosion of power transformation equipment

ActiveCN113205027AAccurate detection abilityImproved detection and recallCharacter and pattern recognitionNeural architecturesSample collectionCorrosion
The invention discloses a detection device and a detection method for metal corrosion of power transformation equipment. The detection device comprises a sample collection module, a layered nesting labeling module, a target detection model training module and a detection result integration module which are connected in sequence; the sample collection module is used for a power transformation equipment sample with a corrosion defect; the layered nested labeling module is used for labeling samples and dividing the samples into a training set, a verification set and a test set; the target detection model training module adopts the marked training set to train a target detection model to obtain a transformation equipment corrosion detection model; and the detection result integration module combines all intersected detection frames in the detection result. Compared with a target detection model obtained by training through a traditional labeling method, the device and method have higher detection rate and recall rate in substation equipment corrosion detection.
Owner:NANJING NARI GROUP CORP +2

Ultrasonic automatic detection device for laser welding T-shaped welding seam defects and quantification method

The invention discloses an ultrasonic automatic detection device for laser welding T-shaped weld defects and a quantification method. The device comprises a base, a two-dimensional motion table, a height adjusting seat, a special ultrasonic probe group, a laser calibration assembly, a detection table and a water spraying assembly. The two-dimensional motion platform is installed on the base and used for carrying the special ultrasonic probe group and the laser calibration assembly, and the positions of the special ultrasonic probe group and the laser calibration assembly can be adjusted in the X direction and the Y direction through the two-dimensional motion platform; the detection table is fixedly arranged on the base and is used for placing a detected workpiece; and the water spraying assembly supplies water to the special ultrasonic probe group. The quantitative detection method comprises the following steps of: drawing an amplitude-size curve based on a reference block; performing scanning detection; and evaluating a detection signal. According to the device and method, multi-probe-group automatic detection is adopted, the detection efficiency is greatly improved through designed probe arrangement mode and laser marking, and the detection precision of internal defects of a welding seam is improved through high-frequency ultrasonic detection.
Owner:NANCHANG HANGKONG UNIVERSITY

Java deserialization vulnerability detection method and Java deserialization vulnerability detection part

The invention discloses a Java deserialization vulnerability detection method and a Java deserialization vulnerability detection part. The method disclosed by the invention comprises the following steps: collecting dependent resources in a server, wherein the dependent resources comprise resources quoted by Java middleware of the server in a root path; decompiling the dependent resources into a Java file; determining method information corresponding to the Java file; and detecting the Java deserialization vulnerability according to the method information. The Java deserialization vulnerabilitydetection method and device can improve the detection accuracy of the Java deserialization vulnerability and the detection capability of the detection scheme. Correspondingly, the Java deserialization vulnerability detection assembly provided by the invention also has the above technical effects.
Owner:SANGFOR TECH INC

Miniaturized airborne zoom lens with large zooming ratio

The invention relates to a miniaturized large zoom ratio airborne zoom lens, which is respectively provided with a front fixed group with a positive focal power, a zoom group with a negative focal power, and an optical focal length along the incident direction of light from left to right. The compensation group with negative power, the variable diaphragm assembly, the rear fixed group with positive power and the color filter switching device; Dental lens and positive crescent lens; the variable power group is provided with a cemented group consisting of double concave lenses, double convex lenses, and double concave lenses; the compensation group is provided with a cemented group made of double concave lenses and positive crescent lenses; The front part of the rear fixing group is provided with biconvex lens and positive crescent lens successively, the middle part is provided with the cemented group, biconvex lens and negative crescent lens closely connected by biconvex lens and biconcave lens successively, and the rear part is provided with biconvex lens. The invention has the functions of continuous electric zoom, electric focus, electric dimming, color filter switching, focal length real-time feedback and the like.
Owner:FUJIAN FORECAM OPTICS CO LTD
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