52results about How to "Good detection rate" patented technology

The present invention relates to a mask plate defect detection method. The method comprises the following steps that: light beams with different wavelengths are projected onto a calibration mask plate having graphic areas with different transmittance to carry out calibration tests to establish a benchmark database; the light beams are projected onto a mask plate requiring detection, at least one selected from reflectivity or transmissivity of the mask plate requiring detection to the light beams is measured; the information of the measured reflectivity or the measured transmissivity is compared to the benchmark data to determine whether the defect exists on the mask plate requiring detection. With the detection method of the present invention, haze defects and micro organic pollution on the mask plate can be quickly and efficiently detected.

The invention relates to a near-infrared absorption anti-counterfeiting method, comprising a near-infrared absorption anti-counterfeiting ink and a special invisible bar code identification pen, the near-infrared absorption anti-counterfeiting ink is used for printing one dimensional code, two-dimension code and numerical code information, the special invisible bar code identification pen can read the one dimensional code, two-dimension code and numerical code information under the action of high-energy rays, so as to judge true and false and achieve anti-counterfeiting purpose. Users can select the one dimensional code, two-dimension code and numerical code information arbitrarily according to needs, thereby achieving anti-counterfeiting uniqueness, in addition, the decoding and analysis of the one dimensional code, two-dimension code and numerical code information printed by the near-infrared absorption anti-counterfeiting ink are difficult, and imitation difficulty is high. The near-infrared absorption anti-counterfeiting method integrates multiple disciplines and multi-field, the production equipment investment is high and the production process is complex.

The invention relates to tumour marker proteins and their preparation from fluids from one or more cancer patients, wherein said fluids are those which collect in a body cavity or space which is naturally occurring or which is the result of cancer or medical intervention for cancer. The invention also relates to preparation of tumour marker proteins from excretions taken from patients with cancer. The tumour marker proteins are useful as immunoassay reagents in the detection of cancer-associated anti-tumour marker autoantibodies.

The invention discloses a human immunodeficiency virus antigen and antibody combined detection kit, use and a detection method thereof. The detection kit comprises the following components: (a) magnetic particle coating matter, which includes an HIV-1/M specific antigen, an HIV-1/O specific antigen, an HIV-2gp36 antigen, and an HIV p24 antibody that coat the magnetic particles and exist in a magnetic particle diluent; (b) an enzyme marker, which inlcudes marker enzyme marked HIV-1/M specific antigen, HIV-1/O specific antigen, HIV-2gp36 antigen, and HIV p24 antibody in an enzyme marker diluent; (c) a sample treatment solution, which contains a nonionic surfactant; and (d) a test diluent, which is a buffer solution for diluting a to-be-tested sample. The kit can realize combined detection of human immunodeficiency virus antigens and antibodies, and has good specificity and high sensitivity.

The invention relates to a defect detection device for a mask plate, which comprises a light source projection device and a detection system. The light source projection device comprises a light source and a lens, the light source is used for emitting light beams which are projected onto the mask plate through the lens, and the detection system comprises a plurality of light strength detectors and used for measuring and calculating at least one of the reflectivity or the transmissivity of the light beam and comparing the reflectivity or the transmissivity of the light beam with established detection standard in advance. By means of the structure, the defect detection device for the mask plate can quickly and effectively detect haze deflects and subtle organic pollutants on the mask plate.

A system and method to support exploring the interior of an object. The system 100, 200 includes a graphical user interface generator (GG) to generate a graphical user interface (GUI). The graphical user interface (GUI) includes an indicator (NC) of a current position of an interventional tool (IT) inside an object (OB). There is also an exploratory indictor (PC) to indicate material composition and/or type that surrounds the tool's tip (TP) at a current position in the object (OB). The exploratory indicator (PC) includes a pointer element for a current reading against a dial element for a range of possible values.

The invention provides a multi-channel optical fiber ring sound emission detection system based on a heterodyne method and belongs to a sound emission detection technology in the nondestructive test field. The system comprises a distributed-feedback-type narrow-band laser (1), an acoustic optical modulator (2), a first optical fiber coupler group (3), an optical fiber ring sensor group (4), a reference optical fiber ring sensor (5), a second optical fiber coupler group (6), an interference coupler group (7), a balance detector group (8), a mixer group (9) and a demodulation system (10). By using the system of the invention, partial discharge of a transformer can be measured in an online and real-time mode and most of defects of a traditional electric sensor are overcome.

An eye opening detection system that includes an imaging mechanism that captures an image of the face of a detected subject, an edge extraction mechanism that extracts the edge of the image captured, and an upper and lower eyelid detection mechanism that detects the upper and lower eyelids of the detected subject according to the edge extracted, and that detects the eye opening of the detected subject with reference to a detected distance between the upper and lower eyelids. The upper and lower eyelid detection detects the upper eyelid and detects the lower eyelid with reference to the upper eyelid detected.

The embodiment of the invention discloses a nucleic acid fluorescence PCR detection kit for a universal enterovirus, a coxsackievirus A16 and an enterovirus 71. The nucleic acid fluorescence PCR detection kit comprises an RNA extracting solution, an RNA eluant, internal standards, a PCR reaction solution, an EV/CA16/EV71 enzyme mixed solution, EV/CA16/EV71 positive reference substances and EV/CA16/EV71 negative reference substances. According to the kit, the universal enterovirus, the coxsackievirus A16 and the enterovirus 71 can be simultaneously detected in a same sample, but other pathogen RNA cannot be detected, the detection sensitivity can reach 400 copie/ml, the detection range is 4.0 E+02-4.0E+08 copies/ml, and a reliable experimental evidence is supplied to early diagnosis on infection of the universal enterovirus, the coxsackievirus A16 and the enterovirus 71.

The invention relates to the field of molecular biology, immunology, disease diagnosis and the like and in particular relates to a chimeric recombinant antigen. The chimeric recombinant antigen comprises three antigen areas which are respectively derived from mycobacterium tuberculosis specific proteins Rv3875, Rv3874 and TB7.7. The invention further relates to a composition of the chimeric recombinant antigen and an application of the chimeric recombinant antigen. The invention further provides a method for detecting the immune response of a specific cell T by using the chimeric recombinant antigen. The invention further provides a method for diagnosing whether a patient is affected by mycobacterium tuberculosis, wherein the method comprises the step of using the chimeric recombinant antigen disclosed by the invention.

The invention discloses a deoxyribonucleic acid (DNA) aptamer for mycobacterium tuberculosis glycolipid antigen, which has a nucleotide sequence shown as SEQ ID No. 1. Experiments show that the DNA aptamer disclosed by the invention has high specificity and strong appetency when acting with the mycobacterium tuberculosis, and a novel preparation is provided for the diagnosis of tuberculosis. Meanwhile, experiments show that the DNA aptamer can inhibit the infection of the mycobacterium tuberculosis, and a novel path is provided for the treatment of the tuberculosis.

The invention discloses a method and device for comprehensively detecting an advertisement plug-in based on multi-features. A compressed APK installation package is uncompressed, and configuration files, resource files and executable files all of which are obtained after the APK is uncompressed are analyzed. The features are extracted regarding to the analysis result of the configuration files, the analysis result of the resource files and the analysis result of the executable files respectively. After the extracted features are synthesized, the matching process is carried out on the extracted features and an advertisement plug-in feature library. If the matching degree between the extracted features and any record in the advertisement plug-in feature library reaches a preset value, the APK installation package contains the advertisement plug-in, and the record advertisement plug-in name in the advertisement plug-in feature library is output. Otherwise, the APK installation package does not contain the advertisement plug-in. Therefore, the method is high in heuristic detecting capacity and capable of detecting the advertisement plug-in of an android platform comprehensively and in time.

The invention relates to an all-solid-state organic electrochemical phototransistor and a preparation method thereof. The organic electrochemical phototransistor adopts a bottom gate planar structure,and the device includes a substrate, a solid electrolyte layer, an active layer, a source/drain electrode and a light absorbing layer from bottom to top; the solid electrolyte layer uses a polymer ion gel electrolyte and utilizes a spin coating or knife coating process to form a solid electrolyte layer on the substrate to achieve an all-solid-state organic electrochemical phototransistor. The all-solid-state organic electrochemical phototransistor provided by the invention achieves excellent optical response R and detection rate D under low voltage operation, and the characteristics of the all-solid-state phototransistor can be further integrated into advanced electronic and circuit systems, and the application field of the high performance electrochemical transistor is expanded. The all-solid-state organic electrochemical transistor is expected to be widely used in the fields of optical sensors, artificial synapses, and large-scale integrated circuits.

Frameworks, methods, and systems for securing a smart grid are provided. A framework can include data collection, call tracing techniques, and preparing call lists to detect counterfeit or compromised devices. The call tracing techniques can include call tracing and compiling all system and function calls over a time interval. The framework can further include data processing, in which a genuine device is identified and compared to unknown devices. A first statistical correlation can be used for resource-rich systems, and a second statistical correlation can be used for resource-limited systems. Threats of information leakage, measurement poisoning and store-and-send-later can be considered.

The invention belongs to the field of molecular biology detection, relates to a mycobacterium tuberculosis rifampicin drug resistance detection method, and provides a method for detecting mycobacterium tuberculosis rpoB mutant genes. The method comprises the following steps of culture, extraction, amplification, purification, digestion, separation, gathering, image displaying and identification. Compared with the existing similar detection methods, the method of the invention adopts once culture, novel forward and backward primers are adopted, the purification step is adopted, the cracking digestion is adopted, the gathering step is adopted before the image displaying, a labeled digoxin antibody developing system is adopted, conventional equipment is adopted, and medicament can be easily obtained, so the method provided by the invention has the obvious advantages that the detection is fast, the detection rate is high, the map identification performance is good, the identification is accurate, the cost is low, and the like. The clinic diagnosis and treatment requirements can be more exactly and efficiently met.

The invention belongs to the field of molecular biology, and particularly relates to an amplification composition for detecting numerical abnormalities of chromosomes and a fast detection kit. The amplification composition is designed by mainly aiming at clinic diagnosis of 18 trisomy, 13 trisomy and sex chromosome aneuploidy anomaly of Chinese people groups. Compared with the exiting invention orsimilar kind of kit, the kit provided by the invention has the advantages that 1, the detection flux is high; 2, the detection period is short; 3, the sensitivity is high; 4, the accuracy is high; 5,in prenatal diagnosis, the mother body pollution can be eliminated; in the system, the STR site polymorphism is high; according to the STR product size, whether the sample is from the same mother body or not can be judged; the problem of mother body cell pollution is avoided; 6, the better inspection rate is realized on chimeras.

The invention discloses a method for detecting lactic acid bacteria in probiotic bacteria, and belongs to the technical field of detection for microbial products. The method comprises the following steps: (1) adding a sample to be tested to a PBS buffer solution supplemented with BSAV, homogenizing, and preparing a homogenate of the sample, wherein the ratio of the sample to be tested and the PBSbuffer solution is 1g: 9mL, adding a lactose solution to the homogenate of the sample, and removing a supernatant by a water bath and centrifugation to obtain a bacterial suspension; (2) adding lacticacid bacteria immunomagnetic beads to the bacterial suspension obtained in the step (1), after mixing and shaking, placing the bacterial suspension on a magnetic stand and layering, discarding the upper layer, eluting the lower layer sample, adding the PBS buffer solution to the eluted lactic acid bacteria immunomagnetic beads, and shaking and resuspending magnetic beads to obtain a sample solution to be tested; (3) culturing, observing, and testing the sample solution to be tested. The invention shortens the detection time of the lactic acid bacteria in the sample, improves the detection rate of the lactic acid bacteria and the accuracy of the detection result, and has high detection sensitivity.

The invention discloses an attack detection method, an attack detection system, an attack detection device and attack detection equipment for a privacy protection-oriented information physical system, and a computer readable storage medium. To-be-transmitted aggregated data obtained by performing preset nonlinear transformation on noise-added aggregated data generated based on a differential privacy mechanism is transmitted through a network communication channel, and a data receiving end performs inverse transformation of the preset nonlinear transformation on the received first aggregated data to obtain second aggregated data, and performing optimal estimation on the aggregation data at the current moment based on Kalman filtering according to the second aggregation data to obtain an estimation residual error of an optimal estimation value, and performing attack detection, thereby reducing an over-high detection threshold caused by a differential privacy mechanism by increasing the randomness of the real-time aggregation data. Therefore, the problem that an attacker can more easily inject an attack signal by wrong data injection is solved, and a better detection rate is obtained.

The invention discloses a vibrio medium for detecting the content of vibrio in aquaculture water. Specifically, the vibrio medium comprises 2.0g of glutamic acid, 15.0g of tryptone, 15.0g of sodium thiosulfate, 5.0g of glycerol monolaurate, 20.0g of lactose, 15.0g of sodium chloride, 1.5g of ammonium ferric citrate, 0.04g of thymol blue, 20.0g of agar powder, and 1000ml of distilled water, and has a pH value of 7.5. The components are mixed, and heated to boiling for 35min, then the product is poured into 22ml/dish culture dish, and after solidification, the medium can be used for vibrio detection. The vibrio medium for detecting the content of vibrio in aquaculture water provided by the invention has high vibrio detection rate, can accurately reflect the total amount of vibrios in culture water, has a vibrio detection rate significantly superior to that of a TCBS medium, avoids the phenomenon of serious discrepancy between vibrio amount detection by a TCBS medium and an actual value during culture, and has important technological value for prevention of aquaculture vibriosis.

The invention discloses improvement and application of an oral cavity swab sample preservation solution. The oral cavity swab sample preservation solution comprises 5-20mM of Tris, 10-50mM of EDTA, 0.1-0.5M of NaCl, 0.1-.05% of SDS and 0.1-2% of sodium hydroxymethylglycinate. The oral cavity swab sample preservation solution also comprises food preservatives nationally licensed to be used. The preservation temperature of the oral cavity swab sample preservation solution is about 37 DEG C, reagents used in a formula of the preservation solution are cheap and fine, and DNA detection rate and stability are improved, so that detection cost is reduced; the formula and production steps are simple and convenient, and the used reagents are good in stability, so that long-term storage of a productcan be facilitated; and the preservation solution adopts common preservatives in foods and daily necessities for inhibiting damage of bacteria on an oral cavity swab sample, the preservatives fully pass through related verification, use security is high, ingredients of the prepared oral cavity swab sample preservation solution can be compatible with a subsequent DNA extraction program, and subsequent DNA extraction is beneficial.

The invention relates to a detection and test method for cytomegalovirus nucleic acid. The method extracts a pathogenic DNA template, and uses pathogen specific lateral upstream and downstream primers for a first round of PCR amplification; the amplified product in the first round is used as a template to conduct a second round of PCR amplification by using pathogen specific inner upstream and downstream primers. A nested PCR method for detection of HCMV virus infection has sensitivity, specificity and authenticity superior to those of an ELISA method and a fluorescent quantitative PCR, so as to provide a high-sensitivity method for clinical practice.

The invention provides a method for detecting the type of an FSW (Friction Stir Welding) welding seam defect by using an ultrasonic phased array, and belongs to the technical field of nondestructive detection of a welding joint. The method is characterized by taking aluminum alloy as a raw material, obtaining butt welding seams by using FSW, for incomplete-penetration and tunnel hole defects in different shapes in the welding seam, detecting the shapes of the interfaces of the defects by means of the ultrasonic phased array, detailedly researching the characteristics of phased array sector scanning modes in different directions of the interfaces of the tunnel holes, and finally identifying the different shapes of the incomplete-penetration and tunnel hole defects by combining texture analysis. The method of the invention has the advantages that: (1) the detection is convenient and easy to operate; (2) The detection efficiency is high and the reliability is strong; in conclusion, the ultrasonic phased array technology has obvious advantages on FSW welding seam detection, is accurate in tunnel hole positioning, and has good detectable rate even if the orientation of a defect interface is complex in the aspect of detection of fine size defects.

The invention belongs to the technical field of detection, and particularly discloses a photoinitiator micro-liquid node surface extractant which comprises 0.1-5 v% of acetic acid, 5-9.9 v% of water and the balance of acetonitrile. The invention also discloses a method and a system for carrying out surface sampling (surface extraction) on a cigarette sample by using the surface extraction agent, and also comprises a method and a system for obtaining a sample to be detected by using the surface sampling method and carrying out mass spectrometric determination. According to the method, in-situ real-time detection of the photoinitiator in the cigarette material is realized, the problems that the photoinitiator detection treatment process in the existing cigarette material is complicated, thedetection time is long and a large amount of solvent is consumed are solved, and the method has huge advantages in detection efficiency, accuracy and environmental protection.