112results about How to "Easy and fast detection" patented technology

The invention relates to a partial-compensation aspherical reflector surface shape detection method, which comprises the following steps of demarcating partial-compensation elements to obtain demarcated phase distribution Wb; using the demarcated phase distribution Wb, sphere theory wavefront Wq and aspherical theory wavefront Wf to obtain phase distribution Wy of digital virtual sample plates; measuring an aspherical reflector surface to be measured to obtain phase distribution Wa; and reducing the phase distribution Wy from the measured phase distribution Wa to achieve surface shape error distribution Wm of the aspherical surface. The partial-compensation aspherical reflector surface shape detection method can accurately measure optical aspherical surface shapes by using a single partial-compensation element, thereby reducing design difficulty of a compensator, simplifying structure of the compensator and being clear in physical definition, simple in data processing and arithmetical operation, simple and practical in experimental operation, low in detection cost and short in test time.

The invention relates to the technical field of a multi-rotor unmanned aircraft, and specifically relates to a water quality hyperspectral aerial remote sensing system based on a multi-rotor unmanned aircraft. The system comprises a multi-rotor unmanned aircraft and a data analysis and processing system. A hyperspectral image detection system is arranged on the multi-rotor unmanned aircraft. The data analysis and processing system receives information acquired by the hyperspectral image detection system. According to the water-quality hyperspectral aerial remote sensing system, the multi-rotor unmanned aircraft is adopted as an aerial remote sensing carrier, such that load and stability can be improved, and large-area data acquisition can be easily realized. Also, with the hyperspectral image detection system, water quality hyperspectral information is acquired, and source data is provided for the data analysis and processing system. With the data analysis and processing system, the data is subjected to real-time processing and analysis, and related indicators are outputted. Data normalization and smoothing, and analysis of various indicators are included. Therefore, water quality remote sensing detection efficiency and precision are improved. The system is suitable for remote sensing detection of water qualities of lakes and bays.

A device and method are provided for isolating and culturing microorganisms from a bulk fluid sample. The device comprises a container having therein a polymeric immobilization layer having interstitial spaces between polymer chains such as a gel matrix. The interstitial spaces are of an average size less than an average size of microorganisms to be separated from the sample and cultured. A bulk fluid sample is applied to the immobilization layer where fluid is absorbed by the layer and microorganisms remain on the surface of the layer. After culturing, microorganism colonies are readily accessible on the surface of the layer for harvest and testing. The immobilization layer may contain one or more of nutrients for microorganisms growth, lytic agents, lytic enzymes, antibiotics, antibiotic neutralizers, indicators, detergents and selective agents. An adjacent support layer may be above and/or below the immobilization layer. The immobilization layer may be in combination with a sensor layer that changes color in areas corresponding to portions of the layer having microorganisms thereon. A membrane may be embedded in the immobilization layer for enhancing microorganism visibility and facilitating microorganism harvest.

The invention relates to a device and a method for measuring the ice accumulation on an electrical wire. The device comprises a camera, a lighting device, a microprocessor and a storage unit, wherein the camera is arranged below an electrical wire to be measured between two electric poles and is used for collecting images of the electrical wire to be measured before and after icing, and the images are sent to the storage unit by a data line; the lighting device is arranged below the electrical wire to be measured between the two electric poles and is used for lightening the image collection area of the electrical wire to be measured above the camera; the microprocessor comprises an arithmetical unit for measuring the image data and calculating the thickness of the ice accumulation on the electrical wire and a controller for controlling the operation of the camera, the storage unit, the lighting device and a communication transmitting device, and the communication interface of the microprocessor is connected with the communication transmitting device; and the storage unit is used for storing the image data and the calculation formulas. The device can conveniently and fast detect the thickness of the ice accumulation on the electrical wire, provide caution to the operation unit, and have the characteristics of simple structure, low cost, accurate measurement, security and convenience. Besides, the steps of the method are simple, and the measurement result is true and reliable.

A modular insulated container for storing goods at constant temperatures. The container has, in an outwardly insulating manner, at least one base, at least one cover and at least four side walls of insulating material, which enclose an inner chamber provided for accommodating the goods in a thermally insulating manner. The at least four side walls are mounted separately with the at least one base and the at least one cover. At least one of the mounted, outwardly insulating side walls has temperature control elements, which face the inner chamber and contain thermal storage fluids, which are separated from the inner chamber by thermally conductive material.

The invention relates to a batch production method of a fuel cell membrane electrode. The batch production method comprises the following steps of (1) preparing a positive electrode catalyst layer membrane electrode in a membrane electrode positive electrode preparation region; (2) transferring the prepared membrane electrode into a CCD detection region, putting on a transparent glass plate tidily, and performing membrane electrode catalyst layer surface appearance detection; (3) transferring the prepared qualified membrane electrode into a drying region, and performing dust-free drying on thecatalyst layer by a tunnel heating furnace; and (4) transferring the membrane electrode into a negative electrode preparation region, and repeatedly executing the steps of (1)-(3) to prepare the fuelcell membrane electrode CCM with relatively high consistency. Compared with the prior art, the batch production method is simple in process and efficient and reliable; screening is performed in the initial stage of membrane electrode assembly (MEA) manufacturing, so that the manufacturing process of the CCM is optimized, the percent of pass of the CCM product is improved, and batch production canbe performed favorably; and in addition, the produced products are higher in consistency, the production cost of the fuel cell is lowered effectively, and the batch production method is suitable fora high-current-discharge fuel cell vehicle-mounted electric pile.

The invention relates to the technical field of clinical molecular diagnosis, in particular to a superficial modification based 5hmC (5-hydroxymethylcytosine) polymolecular marker and a CRC (colorectal cancer) early diagnosis model. With the adoption of a 5-hmC high throughput sequencing technology, 5-hmC expression quantities of peripheral blood plasma DNA whole genomes of a CRC patient and a healthy person are checked, 5-hmC differential expression of genetic loci of the whole genomes of the two groups of samples are compared, the genetic locus of the part with the most obvious differentialexpression is screened as the gene marker of the diagnosis model, and then the CRC early diagnosis model is constructed. Verification proves that the diagnosis sensitivity and specificity are both higher, and compared with a stool occult blood detection kit and a spetin9 kit in the market currently, sensitivity and specificity are improved by about 20% and 8% respectively. The diagnosis method hasthe advantages of being noninvasive in detection and convenient, can be applied to the first-line clinic and is used for early screening of CRC.

Provided is an apparatus and method for detecting grout compactness in grouted splice sleeve, the apparatus comprises a probe assembly, which comprises at least one of capacitive probe and piezoelectric sensor and is arranged inside the grouted splice sleeve to detect parameters of the sleeve during grouting and curing and a detector, which comprises at least an analysis module that is connected with the probe assembly to obtain the detected parameters and carry out calculation and analysis for the parameters. The probe assembly is arranged inside the grouted splice sleeve and forms a loop with the detector during grouting, such that during the process of grouting, the detected parameters will be changed as the surrounding dielectric changes, therefore, the detector may determine in real time whether the grouted splice sleeve is fully grouted by calculating and analyzing the detected parameters, which achieves a faster and easier grout compactness detection.

The invention belongs to the technical field of optical detection, and particularly relates to an optical axis consistency adjustment and detection device and method for a space laser communication terminal. According to the device, the offset of an optical axis is detected through a CCD detection camera, the CCD detection camera collects an image and can display the offset of a laser spot, the direction and the size of the optical axis are adjusted according to the displayed offset, the actual spot position is enabled to be coincide with the center of the theoretical spot position by adjusting the attitude of a to-be-detected optical system lens of the to-be-adjusted laser communication terminal, and the adjustment and detection process of the optical axis consistency is completed. The device is convenient and efficient to install and operate, high in adjustment precision and small in size, and the cost is greatly reduced.

A smart toilet with a function of human blood pressure detection, the smart toilet includes a toilet base. The smart toilet further includes a body connected to the toilet base. The body is provided with a controller and a human blood pressure detection module, a display or voice prompt module, a key input module for sending back operation information of the user to the controller, and a power supply module for supplying power, which are electrically connected to the controller respectively. The controller processes the electrical signal transmitted by the human blood pressure detection module to obtain the blood pressure value of the human body, and controls the display or voice prompt module to output the blood pressure value. The human blood pressure can be conveniently and rapidly detected while the users use the toilet every day, so that abnormal blood pressure can be discovered early.

The invention proposes a gap measurement tool and a gap qualified rate measurement method, which are well adapted to the batch-production internal and external decorations of a cab of a heavy truck. The measurement tool is a measuring ruler with a trapezoid structure. The surface of the measuring ruler is marked with standard scale, a gap lower limit deviation graduated line and a gap upper limit deviation graduated line. The measurement method can achieve the quick, convenient and accurate measurement of the gaps of the batch-production internal and external decorations of the cab of the heavy truck at lower cost through a simple structure, and can accurately determine at the highest efficiency whether the gaps of the internal and external decorations of the cab are qualified or not, greatly improves the detection efficiency of the internal and external decorations of the cab, and reduces the cost. Meanwhile, the measurement tool and the measurement method can be widely popularized and applied to the measurement of gaps of other products besides the internal and external decorations of the cab, and are good in market popularization and application prospect.

The invention discloses an aptamer AFB1-01 of aflatoxin B1 and an application of the AFB1-01, and relates to a nucleic acid. The aptamer AFB1-01 of the aflatoxin B1 is prepared by a systematic evolution of ligands by exponential enrichment (SELEX) method based on agarose beads separation-flow cytometry analysis. The aptamer AFB1-01 of the aflatoxin B1 contains a G base, has a stem-and-loop structure, is high in affinity, good in stability, free of toxicity, and easy to synthetize and mark, and can be used as a potential detection reagent of the aflatoxin B1 in a sample.

The invention relates to a rapid detection kit and a detection method for Listeria monocytogenes. The technology can be used for detecting Listeria monocytogenes, is characterized in that specific primers represented by SEQIDNO: 1-SEQIDNO: 4 and a specific probe represented by SEQIDNO: 5 are contained in the kit, and combines the LAMP technology and the LFD detection technology, so that a detection result can be directly judged with naked eyes. The technology has the characteristics of accuracy, rapidness, convenience, efficiency, specificity and sensitiveness, is suitable for field detection of import and export quarantine, inspection for food hygiene and the like and has important significance on food safety guarantee.

The invention belongs to the technical field of mycotoxin detection, and specifically relates to a method of quickly detecting mycotoxin and an intelligent mobile phone. The method comprises the following steps: a fungi detection instruction of a user is acquired, and according to the detection instruction, a camera is turned on and the user is prompted to scan the two-dimensional code of a test paper; the two-dimensional code of the test paper is scanned through the camera, and through the two-dimensional code of the test paper, the type of mycotoxin which needs to be detected is obtained; adetection test paper is photographed by the camera to acquire a plurality of test paper images, wherein the detection test paper is already dripped with a detection sample, and the detection sample contains mycotoxin; the test paper image is recognized according to the type of mycotoxin, the mycotoxin concentration is obtained, and the mycotoxin concentration is displayed through a display screen;and a sending instruction of the user is acquired, and the mycotoxin concentration is sent to a remote device according to the sending instruction. The portable intelligent mobile phone is adopted todetect the mycotoxin, the detected concentration is uploaded in real time, the detection is quick and convenient, and the efficiency is high.

The invention provides a pesticide residue quick detection card which includes a carrier sheet having an upper surface and a lower surface, which are arranged opposite to each other, and comprising a sample adding part, a substrate part and a bended part. The bended part connects the sample adding part to the substrate part. The sample adding part includes a sample adding hole, a scale groove and a first baffle piece. The sample adding hole and the scale groove are formed from the upper surface to the lower surface in a concave manner and are separated from each other by the first baffle piece. The first baffle piece is arranged on the end, which is closed to the sample adding part, of the scale groove. The pesticide residue quick detection card also includes a sample adding piece, a color development piece and a substrate piece. Butyrylcholine enzyme is immobilized in the sample adding piece which is pasted on the sample adding hole. Starch-iodine is immobilized in the color development piece which is pasted on the scale groove. S-acetylthiocholine iodide is immobilized in the substrate piece which is pasted on the substrate part. The invention also provides a pesticide residue detection method based on the pesticide residue quick detection card. The pesticide residue quick detection card and the pesticide residue detection method are simple in operations and accurate in detection.

The invention discloses a manhole cover recess detection method based on an intelligent terminal. The manhole cover recess detection method comprises the steps: obtaining a front road surface image when the intelligent terminal moves, and recognizing whether the road surface image contains a manhole cover or not; when the well lid is identified, acquiring an acceleration value of the intelligent terminal when the intelligent terminal passes through the manhole cover; and inputting the acceleration value into a trained sinking degree identification model to obtain a manhole cover sinking degreegrade corresponding to the acceleration value. According to the manhole cover recess detection method, the manhole cover can be recognized through the intelligent terminal camera; the sinking degreeof the manhole cover is graded through the accelerated speed; the sinking of the pavement manhole cover can be conveniently and quickly detected, and the detection period is short, and the detection efficiency of the pavement manhole cover is effectively improved; no hardware facility needs to be added; convenience is brought to detection; the manhole cover is positioned and shared; the pavement condition can be predicted in advance; traffic accident hidden dangers are reduced; the intelligence of the terminal is improved; and convenience is brought to users. In addition, the invention also discloses an intelligent terminal and related equipment.

The invention discloses an automobile-used air deflector detection tool, which comprises a base (1). A product shape formed by eleven detection blocks in a surrounding mode is arranged on the base (1), and three detection assemblies (11) and two movable detection supports (12) are arranged in the product shape surrounded by the detection blocks. The automobile-used air deflector detection tool is characterized in that detection pin holes are arranged in the detection assemblies (11) and partial detection blocks; movable pins (14) are arranged on the movable detection supports (12); a workpiece (18) is firstly placed on the detection block and fixed via a detection pin (13), positional tolerance detection and hole diameter detection on partial holes in the front face of the workpiece (18) are then carried out, positional tolerance detection and hole diameter detection on side holes of the workpiece (18) are carried out by using the movable pins (14), and then whether the peripheral contour and the surface difference of the workpiece (18) meet tolerance requirements is detected by using a go-no go gauge and a surface difference gauge. The automobile-used air deflector detection tool has the advantages that the operation is simple, the processing efficiency can be doubled, the labor intensity is lessened, and the product quality is improved.

An aptamer AFB1-14 of aflatoxins B1 and application thereof relate to a nucleic acid. The aptamer AFB1-14 of aflatoxin B1 is screened and prepared by an affinity SELEX method based on the agarose micro-beads-flow cytometry analysis. The aptamer AFB1-14 of aflatoxins B1 is rich in G bases and has a stem-loop structure. The aptamer AFB1-14 has features of good affinity and stability, no toxicity, easiness in synthesis and labeling, and can be used as one potential detection reagent of the aflatoxins B1 in the sample.

The invention discloses a method for detecting drainage oil. The method is characterized by comprising the steps as follows: a to-be-detected oil liquid is added into a specific solution; the to-be-detected oil liquid is decomposed into uniformly distributed molecular particles in the solution after the mixture is uniformly rocked and vibrated; then an optical device capable of detecting the particle diameter of each molecular particle in the solution is adopted to detect the solution, so that a particle diameter distribution diagram of the molecular particles formed by the to-be-detected oil liquid in the specific solution is obtained; and the particle diameter distribution diagram is compared with a sample particle diameter distribution diagram obtained through a standard sample in advance, and then whether the to-be-detected oil liquid belongs to the drainage oil can be judged. Compared with the prior art, the method can be used for judging and detecting the drainage oil, and has the advantages of high judgment accuracy, convenience in operation, simplicity and practicability, and the purpose of simply and conveniently detecting the drainage oil or waste cooking oil is achieved.

The invention provides a disease detection method based on cough sound recognition, which comprises the following steps of: acquiring sound information to be detected or training sound information, and extracting a characteristic Mel-frequency cepstrum coefficient of the sound information to be detected or extracting a training Mel-frequency cepstrum coefficient of the training sound information;drawing a characteristic Mel spectrogram by taking time and frequency as axes according to the characteristic Mel frequency cepstrum coefficient, or respectively drawing a plurality of training Mel spectrograms by taking time and frequency as axes according to the plurality of training Mel frequency cepstrum coefficients; and training the plurality of training Mel spectrograms through a preset convolutional neural network to obtain a feature convolutional neural network model. Compared with the prior art, the method has the advantages that the detection process of related diseases is simple, and the detection efficiency is high.

The invention relates to a reagent kit for detecting antiuninuclear cell proliferation Listeria bacteria by colloidal gold Hly gene monoclonal antibodies and belongs to the technical field of hygiene inspection and medical inspection. The reagent kit is characterized by comprising the steps of: 1, primer design; 2, polymerase chain reaction (PCR) amplification; 3, agarose gel electrophoresis reaction conditions; 4, target deoxyribonucleic acid (DNA) segment cutting; 5, heat shock conversion method application; 6, reagent kit purification and plasmid preparation by a sodium dodecyl sulfate (SDS) cracking method; 7, protein induction expression; 8, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE); 9, required strip cutting from the SDS-PAGE; and 10, colloidal gold preparation. The regent kit has the beneficial effect that the limitation aiming at the single-clostridium and single-antigen test in the prior art is avoided. The antibody is pure, the valence is high, and the sensitivity and the accurate degree are improved. The single added Listeria bacterium is detected. Compared with an enzyme-linked immuno sorbent assay (ELISA) method and a PCR method, the reagent kit has the advantage that the Listeria bacterium detection is faster and more convenient by the immune colloidal gold chromatography.

The invention discloses a pseudovirus of COVID-19 coronavirus as well as a preparation method and application of the pseudovirus, and belongs to the technical field of biological medicines. Accordingto the pseudovirus, COVID-19 membrane protein participates in packaging of a defective virus genome with a reporter gene, one or more sections of exogenous sequences for encoding bioactive substancescan be included under the condition that the reporter gene sequence is carried or not carried, the reporter gene is selected from enhanced green fluorescent protein (EGFP) or luciferase. the defectivevirus genome or a portion thereof are derived from VSV, HIV, SARS and other viruses, and one or more structural genes contained in the defective virus genome can be removed or regulated to be inactivated. The pseudovirus can reduce the risk of virus research to the maximum extent, and can also be used for screening antiviral drugs, determining the titer of a neutralizing antibody in the body of an infected person, searching for an epitope combined with the neutralizing antibody on a COVID-19 coronavirus surface antigen and evaluating the immune effect of vaccines.

The invention discloses a geographic information technology-based comprehensive management platform and belongs to the technical field of road traffic management. The comprehensive management platform comprises a plurality of subsystems listed as follows: a monitoring management subsystem, a case management subsystem and a check point electronic police subsystem, wherein the monitoring management subsystem is connected with video monitoring devices and is used for realizing remote controlling and monitoring as well as unified management of the video monitoring devices; the case management subsystem is used for extracting and saving relevant information of law violating vehicles, the check point electronic police subsystem is connected with a high definition check point device and an electronic police device, and the check point electronic police subsystem is also used for check point real time monitoring and electronic police real time monitoring. The beneficial effects of the geographic information technology-based comprehensive management platform are that all resources of an intelligent traffic system are highly integrated, unified management and scheduling of road traffic are realized, strong system functions are fulfilled, relevant information of the law violating vehicles can be timely and accurately detected and uploaded, alarm over vehicles having law violation records can be sent out, and various requirements of road traffic management can be met.

The invention provides immune magnetic particles for purifying an aflatoxin sample, a chromatography test strip manufactured based on the immune magnetic particles and a detection method, aims to solve the technical problems of complex separation operation, low separation efficiency, and high potential safety hazard in the process of purifying and separating the aflatoxin sample, and discloses a method capable of qualitatively and quantitatively detecting the aflatoxin. By the immune magnetic particles for purifying the aflatoxin sample, gold magnetic particles with the particle size of 20 to 200nm serve as a carrier, an aflatoxin monoclonal antibody serves as a ligand, the gold magnetic particles are connected with the aflatoxin antibody through a covalent reaction or the affinity, and the saturation magnetization of the gold magnetic particles is higher than 30emu/g. The aflatoxin antibody labeled by the gold magnetic particles is used for detection of the chromatography test strip, so that visual qualitative detection can be performed, quantitative detection can be performed by detecting magnetic signals, and the detection sensitivity is greatly improved.

The invention, which relates to the field of biotechnology, particularly discloses a test strip for detecting wide spectrum type salmonella in food and a preparation and use method thereof. The test strip comprises a PVC bottom plate, a nitrocellulose film bonded to the middle section of at least one surface of the PVC bottom plate, a piece of absorbent filter paper being arranged at one end of the at least one surface of the PVC bottom plate and being adjacent to the nitrocellulose film, a bonding gasket being arranged at the other end of the at least one surface of the PVC bottom plate and being adjacent to the nitrocellulose film, and a sample gasket being arranged at one end of the nitrocellulose film and being adjacent to the bonding gasket. A detection line and a quality control lineare arranged at positions, being adjacent to the bonding gasket and the absorbent filter paper, of the nitrocellulose film. According to the test strip, salmonella of a plurality of serum groups canbe detected rapidly and simply in a broad spectrum manner; and thus the possibly polluted salmonella in the food can be detected conveniently and rapidly.

The invention provides an attack detection method and device for a vehicle network, a detector and a storage medium. When a data packet is collected, whether the data packet is transmitted by a plurality of buses or not can be analyzed by determining that the plurality of buses need to be transmitted. And if the data packet is not the data packet injected by the attacker, it is indicated that thedata packet is the data packet injected by the attacker, and it is indicated that the vehicle network is subjected to the interception type attack, so that the vehicle network can be detected to be subjected to the interception type attack under the condition that the data packet injected by the attacker simulates normal data.

The invention discloses a method for detecting enrofloxacin in a water body. The method comprises the steps of reacting terephthalaldehyde with 1,3,5tri(4-aminophenyl) benzene to generate TAPB-PDA-COFs; carrying out a reaction on TAPB-PDA-COFs, chloroauric acid and sodium citrate to obtain a TAPB-PDA-COFs/AuNPs composite material; modifying the surface of a glassy carbon electrode with the TAPB-PDA-COFs/AuNPs composite material to prepare a modified electrode; assembling the modified electrode into a three-electrode system of an electrochemical workstation, detecting the oxidation current in the water body by using square wave stripping voltammetry, and calculating the content of enrofloxacin in the water body by comparing with a standard curve. According to the detection method disclosedby the invention, a detection result can be qualitatively obtained by directly observing whether the oxidation current is generated or not in a short time, so that the detection time of enrofloxacin is shortened, and the method is a convenient, rapid and sensitive method for detecting enrofloxacin.

The invention discloses a detecting device for a handrail driving wheel of an escalator or a moving walk. Annular grooves or figures are formed in a rubber layer arranged on the outer circumferential surface of the handrail driving wheel.