103results about How to "Reduce overlap" patented technology

The invention discloses a driver distraction detection method based on ResPrompt and double cross attention, and the method comprises the steps: inputting a front / side visual angle image of a driver distraction behavior into a linear embedding module and a ResPrompt module, carrying out the partitioning of the image through the linear embedding module, generating a feature vector, and generating a prompt vector of the image through the ResPrompt module; performing multi-scale feature extraction on the feature vector of the front / side view angle image and the most matched prompt vector by using a Swindow-Transfomer module to generate each view angle feature; and fusing the double-view-angle features by using a double-cross attention module, inputting the double-view-angle features into a classifier fusing center loss, and performing behavior detection on the features to generate a final detection result. According to the method, the accuracy and robustness of detection can be effectively improved, and reliable technical support is provided for safe operation of semi-automatic and automatic driving vehicles.

The invention discloses a geological survey device, and belongs to the technical field of geological survey, the geological survey device comprises a base, the top of the base is provided with a collection frame and an electric lifting mechanism, and the top of the electric lifting mechanism is provided with a mounting plate; a plurality of connecting springs are fixedly connected between the collecting frame and the mounting plate, a sliding hole is formed in the top of the mounting plate, an adjusting plate is slidably mounted in the sliding hole, a linkage rod is hinged to the bottom of the adjusting plate, and the other end of the linkage rod is hinged to the top of the collecting frame; the sampling mechanism comprises a sampling barrel, a hollow shaft and a driving mechanism. Through the electric lifting mechanism and the sampling mechanism, stones can be crushed while soil sampling is achieved, the drilling speed and the feeding speed can be automatically adjusted according to feeding resistance, when the feeding resistance reaches a certain degree, the compressed gas storage tank is matched to improve the crushing effect on the stones, and the sampling efficiency is guaranteed.

The invention relates to the technical field of intelligent monitoring, in particular to a large-scene multi-target on-site holographic intelligent monitoring comprehensive management system, which comprises a device determination module, a plurality of initial monitoring devices and a control module, the model construction module obtains and analyzes a plurality of initial monitoring video data, and constructs an initial monitoring model; the grade determination module determines an initial number of preset monitoring targets and determines an initial importance grade; the anomaly recognition module determines an initial monitoring frequency, performs monitoring based on the initial monitoring frequency, and recognizes an initial anomaly event based on an initial monitoring result; the degree analysis module analyzes the initial abnormal event and gives an alarm based on the comparison result of the initial severity, or adjusts the initial monitoring frequency, monitors the sub-region corresponding to the abnormal event in real time based on the adjusted monitoring frequency, analyzes the real-time monitoring result, gives an alarm based on the analysis result, or continues monitoring. According to the invention, the comprehensive accuracy of monitoring is improved.

The invention relates to the technical field of computer science and oral medical treatment, and discloses a color image early caries diagnosis model based on deep learning, which comprises an image collection stage and a model construction stage, and the model construction stage comprises training of a deep learning network and operation of a caries diagnosis model. The method comprises the following steps: S1, screening caries-containing images: training an image classification network to divide an intraoral image into a healthy intraoral image group and a caries-containing intraoral image group; s2, dental caries detection: training a target detection network to mark dental caries in the image in the oral cavity containing caries; and S3, dental caries segmentation and numbering: marking and segmenting the teeth in the dental caries-containing intraoral image and numbering the teeth. According to the scheme, a large amount of intraoral image data are collected and marked and are respectively used for training and testing of different classification, target detection and segmentation networks, and then the network with the best performance in each task is selected for construction of a dental caries diagnosis model. And finally, performing overall operation and analysis on the constructed diagnosis model so as to realize complete diagnosis of caries in the intraoral image.

The invention provides an automatic wiring method, system and device based on pin positions and directions and a medium. The method comprises the steps of obtaining information of two ends of wiring, determining a starting point and an ending point, preferentially selecting a point with a large y coordinate as the starting point, and selecting a point with a small x coordinate if the y coordinates are the same. If the connection is the symbol, obtaining the direction, the number and the serial number of the pins and the distance between the two symbols; and if the symbol information does not exist, orthogonal wiring is directly carried out. Thirdly, calculating unit offset according to the symbol spacing and the number of the pins, starting wiring from the starting point, and outgoing lines according to the serial numbers of the pins and the unit offset; in the process, whether the wiring passes through the start point or end point symbol region or not is detected, and if yes, inflection point bypassing is added. Then, whether the wiring overlaps with the existing wiring is detected, and if the overlapping and belonging to the same network, the overlapping portion is removed and nodes are added to optimize the wiring. And finally, wiring is completed, and the symbol is drawn into a schematic diagram to be stored. The wiring efficiency and accuracy can be improved, and human errors are reduced.

The invention discloses an agile satellite multi-satellite collaborative observation-data transmission combined planning method, which comprises the following steps: carrying out discrete sampling on a target area, calculating the visibility of each satellite to a sampling point, and obtaining the coverage characteristic of each satellite to the area based on the visibility of the sampling point; based on satellite coverage characteristics, a K-Means clustering algorithm is used to segment the target area into a plurality of sub-areas and distribute the sub-areas to corresponding satellites; boundary adaptive stripe division is carried out on the distributed sub-regions, and the number of stripes is calculated; constructing an observation-data transmission joint planning problem model, solving based on an elite genetic algorithm to obtain a planning result, integrating all satellites, and outputting an optimal scheduling scheme; according to the method, the problem that regional target observation-data transmission combined planning is difficult to solve under multi-satellite cooperation of agile satellites is solved, the coverage of the satellites on the distribution region is ensured, the overlapping rate of observation strips of different satellites is reduced, the overall observation benefit under multi-satellite cooperation can be improved, and the method can be effectively applied to a remote sensing satellite management and control technology.

The invention belongs to the technical field of fiber size measurement, and particularly relates to a method for measuring the length of fibers in a fiber reinforced thermoplastic composite material. Mixing and diluting the fiber reinforced thermoplastic composite material and thermoplastic resin to obtain a diluted material, pressing the diluted material to obtain a test sample strip, cutting the test sample strip into a sample wafer, and measuring the length of the fiber in the sample wafer under an optical microscope; wherein the fiber reinforced thermoplastic composite material is prepared from matrix resin and reinforced fibers, and the matrix resin is the same as thermoplastic resin. According to the invention, the problems of poor measurement result accuracy and reproducibility and low measurement efficiency of the existing fiber length measurement method for the fiber reinforced thermoplastic composite material are solved.

The invention relates to a furniture three-dimensional reconstruction method, which comprises the following steps: collecting sparse point clouds of furniture, and obtaining a Gaussian ellipsoid set according to the sparse point clouds; obtaining Gaussian ellipsoids to be split in the Gaussian ellipsoid set, and determining the positions of the central points of the two Gaussian ellipsoids to be generated based on the cumulative gradient of the Gaussian ellipsoids to be split and the distribution of the Gaussian ellipsoids in the neighborhood, according to the shape of the Gaussian ellipsoid to be split and the neighborhood of the two split Gaussian ellipsoids, the shapes of the two split Gaussian ellipsoids are determined; obtaining a Gaussian ellipsoid to be cloned in the Gaussian ellipsoid set, and determining the position of the central point of the Gaussian ellipsoid generated by cloning based on the distribution of the Gaussian ellipsoid in the neighborhood of the Gaussian ellipsoid to be cloned; and storing the trained Gaussian ellipsoid set, and performing three-dimensional reconstruction on furniture by using the stored Gaussian ellipsoid set.

The invention discloses a dinaphtho boron oxygen structure derivative and a preparation method and application thereof, and belongs to the technical field of organic light-emitting materials and semiconductors. The dinaphtho boron oxygen structure derivative has the advantages of easily available reaction raw materials, low price, conventional reaction process, high single-step reaction yield and low cost. When the prepared dinaphtho-boron-oxygen structure derivative is applied to a light-emitting layer of an OLED device as a guest light-emitting material, the roll-off efficiency of the device can be effectively reduced, the light-emitting brightness is improved, and the service life of the device is prolonged.

The invention relates to the technical field of electric power communication module meter reading test, and discloses an electric power communication module meter reading test method and system, and the method comprises the steps: sending a to-be-tested module into a conveyor belt, carrying out the light supplement after the to-be-tested module enters a detection region, collecting an image, and recognizing display data. If the data display is abnormal, further judging whether bright spots exist or not, and if not, removing abnormal modules; and if yes, adjusting the light supplementing strategy and re-collecting the image until the bright spots disappear. And comparing and synthesizing the newly collected image and the original image, and determining whether the ammeter is qualified after determining that the data is accurate. Light supplementing adjustment is based on analysis of the bright spot position, the light supplementing effect is optimized by controlling the position of a light supplementing lamp, and the accuracy of detection data is ensured. The method can effectively improve meter reading accuracy and reduce manual intervention, and is suitable for automatic production line detection of intelligent electric meters.

The invention discloses an important node screening method for an active telemetering scene, and provides a comprehensive evaluation and optimization framework aiming at the problems of probe resource waste and overhigh system load caused by improper node selection in the existing telemetering technology. According to the method, network static topology features and dynamic state features are combined, a node importance scoring model is constructed through feature extraction, dimension reduction fusion and multi-task feature comprehensive analysis, and accurate selection of important network nodes is achieved. According to the method, topological information is analyzed through a weighted TOPSIS method to obtain spatial features, key dimensions of state features in stage historical telemetry data are extracted through principal component analysis (PCA), redundant data are remarkably reduced, and efficient state feature representation is generated. On the basis, a screening method combining spatial features and node state features is designed, and a screening strategy is dynamically adjusted through feature analysis of staged telemetering so as to optimize node priority ranking. The method is suitable for an active telemetering scene in a complex network environment, the capturing capacity of important events can be remarkably improved, system resource consumption is reduced, and the overall performance of an active telemetering system is comprehensively optimized.

The invention discloses a brain connection event causal relationship extraction method based on weighted joint constraint learning. The method aims at a text mining task-brain connection event causal relationship extraction in an event-level neural image. According to the method, a novel model named as a brain connection event relation miner is developed by utilizing weighted joint constraint learning. A lightweight model is developed by integrating a BiLSTM (Bidirectional Long Short Term Memory) network and a multilayer perceptron (MLP), and is used for jointly extracting a plurality of event causal relationships from brain connection literatures. In view of scarcity of an annotation brain connection corpus, a weighted joint constraint learning framework is provided. The framework integrates dual consistency constraints, including common sense constraints and domain constraints, and combines the dual consistency constraints with adaptive weight learning to enhance the small sample learning ability of the model.

The invention relates to a wafer generation method, in particular to a method and equipment for generating a wafer through SiC crystal ingot laser lift-off. According to the method, by adjusting the rotation angle of the SiC ingot and the scanning direction of the laser beam, the scanning direction of the laser beam deviates from a specific angle range relative to the main cut edge, so that the formation of a modified layer and the propagation path of cracks are improved, the residual wafer defects are reduced, and the qualified rate of finished products is improved.

The invention relates to the field of drug analysis, and discloses a trace analysis method and system for antiviral drugs in sewage based on LC-MS / MS. The method comprises the following steps: filtering a sewage sample, analyzing the drug properties of the antiviral drugs, carrying out solid-phase extraction on the filtered sewage sample, preparing an LC-MS / MS module of the extracted sample, determining a mobile phase of a chromatographic column, and determining the mobile phase of the chromatographic column. Balancing the chromatographic column, constructing chromatographic conditions for balancing the chromatographic column, determining a tuning solution and a mass axis calibration compound of a mass spectrometer, calibrating the mass spectrometer, and constructing mass spectrum conditions of the calibrated mass spectrometer; the method comprises the following steps: preparing a standard solution containing an antiviral drug, analyzing the standard solution, constructing a standard curve of the standard solution, and calculating a response coefficient of an LC-MS / MS module; and analyzing the extracted sample to obtain a sample mass spectrum and a sample chromatogram, and calculating the content of the antiviral drug. According to the method, the sensitivity and accuracy of trace analysis of the antiviral drugs in the sewage can be improved.

The invention belongs to the technical field of wafer automatic detection equipment, and provides a wafer detection point spiral scanning motion device and method in order to solve the problems that linear scanning detection coverage of an existing wafer is uneven, a detection blind area is likely to be generated, and repeated scanning is needed to affect the detection efficiency. The equidistant spiral track movement of the wafer in the plane is completed through the rotating platform and the two transfer platforms, the optical detection module collects spectral information at a fixed position at a preset frequency in the moving process, the whole surface of the wafer is uniformly covered from the center to the edge, no detection blind area is ensured, overlapping or omission in the detection process is effectively reduced, and the detection efficiency is improved. The linear speed is kept at a constant speed, so that re-collection and missing collection of collection points are avoided, point spiral scanning detection in the radial plane of the wafer is completed, the detection device does not need to be started and stopped frequently, the detection speed is adjustable, and the detection efficiency is high.

The invention discloses a self-adaptive construction method for a power grid tidal current diagram of newly added plant station nodes, and relates to the technical field of automatic construction of electric power system graphs, and the method comprises the steps: obtaining a tidal current diagram data source; the method comprises the following steps: initializing a mapping environment of a power grid tidal current diagram by taking a tidal current diagram data source as an input of an improved force-guided algorithm, and determining a first-stage full-quantity layout of plant station nodes and line scales to obtain a tidal current node distribution diagram; carrying out wiring and wiring path selection on the plant station nodes in the power flow node distribution diagram based on a path spanning tree wiring algorithm to obtain an optimal wiring path so as to carry out second-stage full-quantity layout of the plant station nodes and the line scale; calculating the primitive position of the newly added plant station node based on the second-stage full-quantity layout, so as to carry out incremental layout of the newly added plant station node and the line scale, and obtaining a power flow incremental layout diagram; performing text measurement layout on the load flow increment layout diagram to complete construction of a power grid load flow diagram; and the automatic construction efficiency of the tidal current diagram and the power grid monitoring efficiency are obviously improved.

The utility model discloses metal zipper manufacturing equipment with an excessive drying prevention function, which comprises a rack, the top of the rack is fixedly connected with a supporting frame, the outer wall of the supporting frame is provided with a conveying assembly, one side of the supporting frame is provided with a spraying machine, one side of the rack is provided with a conveying belt, and the conveying belt is provided with a conveying belt. A machine shell is installed outside the conveying belt, an air cylinder is installed at the top of the machine shell, the output end of the air cylinder is fixedly connected with a smoothing scraping plate, a drying assembly is installed on one side of the machine shell, and a discharging hopper is fixedly installed on one side of the drying assembly. According to the metal zipper manufacturing equipment with the excessive drying prevention function, the drying equipment with the precise temperature and air speed control function is selected, the hot air circulation drying assembly is utilized, the temperature in the drying oven is uniform, heat dissipation holes are additionally formed under the condition that the internal temperature is high, and therefore the temperature of internal circulation air is reduced, and the service life of the metal zipper is prolonged. And the condition that the coating is excessively dried due to local overheating is reduced.

A method and system for determining a reflection position in an optical fiber relates to the field of on-line monitoring of an optical fiber line, and the method comprises the following steps: a signal sending end generates a correlation sequence, dynamically adjusts the duty ratio of the correlation sequence, modulates the correlation sequence to a detection wavelength, and sends the correlation sequence to a to-be-detected optical fiber; the signal receiving end receives the reflected light signal of the optical fiber to be measured, after signal processing, correlation operation is carried out on the signal and the correlation sequence of the sending end, and the reflection position is determined through the time delay of a correlation peak; reflection light signals from all reflection points of the optical fiber to be detected are mutually staggered in time sequence, so that overlapping of strong and weak reflection signals is reduced in time, correlation peaks of the strong and weak reflection signals can still be obtained based on correlation detection, and then the reflection position is accurately determined according to correlation peak time delay.

The invention discloses a dual-channel multi-pulse signal synthesis method, which belongs to the technical field of multi-pulse signal synthesis and comprises the following steps: acquiring a plurality of pulse signals and parameters thereof; the pulse signals are stored in a random type signal pool and a periodic type signal pool according to time domain characteristics in the parameters; synthesizing the pulse signals in the periodic signal pool into a periodic pulse sequence; synthesizing the pulse signals in the random signal pool into a random pulse sequence; synthesizing the periodic pulse sequence and the random pulse sequence into a dual-channel multi-pulse signal; according to the method, hardware resources used by the two channels are small, the two channels process signal sets with different properties, priorities do not need to be set for pulse signals to be synthesized, and when pulse overlapping occurs, the probability that each pulse can be reserved is not affected by the priorities; according to time domain feature classification, pulse synthesis is performed by taking a single pulse as a unit, so that the condition of large-scale pulse loss is avoided.

The invention belongs to the technical field of glass curtain wall stain recognition, and relates to a glass curtain wall stain segmentation method and device and a computer readable storage medium, and the method comprises the steps: collecting an original polarization image of a to-be-recognized glass curtain wall through a pixel-level polarization array camera; the maximum light intensity value and the minimum light intensity value of the pixel position are obtained based on the light intensity values of the same pixel position at different polarization angles, so that the polarization degree of the pixel position is calculated; based on the polarization degree of each pixel position and the normalized light intensity value of each pixel position at different polarization angles, constructing light intensity reconstruction weights of each pixel position at different polarization angles; carrying out weighted summation on the light intensity and the light intensity reconstruction weight of each pixel position at different polarization angles to obtain the reconstruction light intensity of each pixel position so as to obtain a reflection suppression image; and inputting the reflection inhibition image into a reflection layer separation network, and decomposing the reflection inhibition image into a reflection image and a transmission image, thereby carrying out curtain wall stain segmentation identification.

The invention discloses a hardware and software typewriting input system for displaying the position relation between fingers and a keyboard on a screen, and aims at improving the input precision, reducing misoperation and accelerating the input process by monitoring interaction between the fingers of a user and an entity keyboard in real time. The system captures through a high-definition camera, combines image processing and a deep learning algorithm, and displays positions and contact conditions of fingers and keys. The system can improve the input efficiency, is suitable for various environments, does not need to change the input habit of a user, and is particularly suitable for occasions of one-time accurate input.

The utility model relates to the technical field of X-ray examination assisting, in particular to an X-ray examination assisting device which comprises a seat plate, the left side of the seat plate is rotationally connected with a backup plate through a rotating shaft, supporting legs are fixedly connected to the four corners of the bottom of the seat plate, and fixing mechanisms are installed on the surface of the seat plate and the surface of the backup plate. According to the X-ray examination auxiliary device, limbs of a patient can be fixed through the fixing mechanism according to requirements of the patient, toppling in the detection process is effectively avoided, the detection efficiency is improved, and therefore the X-ray examination auxiliary device has the advantages of being suitable for different patients and wide in range, the positions of a plurality of binding belts are adjusted by adjusting the positions of sliding blocks in the fixing mechanism, and the practicability is high. After adjustment is completed, the fastening bolt is rotated to enable one end of the fastening bolt to make contact with the surface of the sitting plate and the surface of the backup plate, the patient sits on the sitting plate and leans against the backup plate, the binding belt penetrates through the ring body on the rear side, the hook-and-loop fastener and the hook-and-loop fastener are bonded, and therefore the patient is fixed.

The invention discloses an unsupervised mixed audio cross-modal separation method, system and device, and a storage medium, and the method comprises the steps: detecting a sound source object in a video, and extracting a target object and visual features in the video through employing a target detection algorithm; preprocessing audio and video data; the cross-modal audio and visual semantic alignment learning comprises audio and video semantic consistency learning and audio and visual cross attention learning; performing unsupervised mixed audio preliminary separation to obtain a plurality of separated audio signals; performing independent adversarial learning, constructing a signal library, and setting a loss function to close the difference between the joint distribution of signals generated by the audio decoder and the joint distribution of samples in the random selection signal library so as to train the U-Net audio decoder to generate mutually independent separated audio signals; the invention relates to visually guided unsupervised audio separation. According to the method, on the basis of independent adversarial learning, independence of a single sound source generated after mixed audio separation and corresponding relevance between sound sources are considered, and unsupervised mixed audio separation is achieved.

The invention discloses a transplantation moisture-retaining soil-breaking device based on osmanthus cultivation, relates to the technical field of osmanthus cultivation, comprises a soil-breaking device body, and also comprises: a soil-breaking reinforcement mechanism and a swing moisture-retaining mechanism, wherein the swing moisture-retaining mechanism is driven by the soil-breaking reinforcement mechanism, and the arrangement of the soil-breaking reinforcement mechanism and the swing moisture-retaining mechanism avoids the problem that the soil may become drier due to water evaporation during the soil-breaking process, so that when the osmanthus is transplanted, the root system of the osmanthus seedling cannot absorb enough water, resulting in the problem of slowing down the growth rate of the osmanthus seedling, and avoids the problem of leaving soil blocks due to the adhesion of the clay when breaking the soil of some clay-textured soil, improves the soil-breaking efficiency, saves time, and also reduces the influence of soil moisture on the soil-breaking device body, improves the adaptability of the soil-breaking device body to soil moisture, improves the moisture retention of the soil when the osmanthus is transplanted, ensures the air permeability of the soil, and improves the effect and efficiency of the osmanthus when transplanting.

The present invention belongs to the technical field of tea processing, and specifically is a device for detecting moisture in floral white tea, comprising a base, a hopper fixedly mounted on the top of the base, adsorption rollers symmetrically arranged on the inner side of the hopper, adsorption holes evenly opened on the outer wall of the adsorption rollers, rotating joints fixedly mounted on the inner walls of the two adsorption rollers close to each other, a connecting pipe fixedly mounted between the inner walls of the two rotating joints, positioning frames rotatably mounted on the outer walls of the two adsorption rollers, and a connecting plate fixedly mounted between the outer walls of the two positioning frames. The device for detecting moisture in floral white tea described in the present invention places the floral white tea to be detected on the inner side of the hopper, and after the white tea is adsorbed by the adsorption roller, the white tea is moved to the spectrum collection board, and the white tea is detected by the spectrum collection board. The operation is simple, continuous detection can be performed, and reciprocating feeding is not required, which effectively improves the detection efficiency.

The utility model discloses a protective paper attaching jig for a component on an FPC (flexible printed circuit), which relates to the field of FPC processing jigs and comprises a pressure head, a groove is arranged on a crimping surface of the pressure head, an air cavity is arranged inside the pressure head and connected with a plurality of vent holes, the vent holes are communicated to the crimping surface of the pressure head, and an air inlet is arranged on one side of the air cavity. According to the utility model, the groove is formed in the bottom surface of the pressure head, the protective paper is adsorbed to the crimping surface of the pressure head through the vent hole, and when the pressure head is pressed down to the surface of the FPC, the protective paper is pressed through blowing of the vent hole, so that the protective paper is attached to the FPC and wraps a component, the protective paper can be attached and fixed to the FPC, manual pressing and fixing are not needed, the production efficiency is improved, and the production cost is reduced. The pressing head cannot press the component in the downward pressing process, damage to the component in the protective paper attaching process is avoided, the product quality is ensured, and the device is simple in overall structure, low in manufacturing cost, convenient to attach, convenient to operate and convenient for automatic production.

The invention relates to the technical field of bonding equipment, in particular to chip bonding equipment with a stable clamping function. Comprising a working cabinet, a bonding gun is arranged in the working cabinet, the working cabinet is fixedly connected with a bearing plate, the bearing plate is rotatably connected with rotating parts in mirror image distribution, the rotating parts are detachably provided with wire releasing parts, the wire releasing parts are wound with bonding wires, the bearing plate is provided with a coil number measuring module in mirror image distribution, and the wire number measuring module is connected with the bonding gun. The lower side of the bearing plate is provided with a first sliding part, and the first sliding part is fixedly connected with a delivery part which is used for conveying the bonding wires which are distributed on the wire releasing part in a mirror image manner. According to the invention, a mode of adding the standby bonding wire is adopted, so that after the bonding wire is used, the cutting and the connection of the bonding wire are automatically completed, the shutdown time is shortened, the bonding wire does not need to be calibrated repeatedly, and in the process of automatically replacing the bonding wire, the supplement of the standby bonding wire is manually completed in a simple and convenient mode.

The invention relates to the technical field of smart home, in particular to a digital media smart home control system which comprises a central air conditioning system, a fresh air system, a sweeping robot, an image capture module, a processing center and an infrared dust sensor. The activity areas of the residents in different time periods are based on the image capturing module; a dust gathering area is determined according to the real-time dust particle concentration of the infrared dust sensor, and a cleaning route is controlled based on the relation between the dust gathering area and the moving area; according to living habits of residents, generation of indoor dust accumulation is reduced, and comfort of the indoor environment is guaranteed.

The present invention provides an analytical method for thiol compounds, comprising: 1) dissolving standard substances of various thiol compounds in an aqueous solution with a pH of 10-12, and derivatizing them with 2,4,6-trifluorobenzylamine and o-phthalaldehyde to obtain standard substances of various derivatized thiol compounds. 19 FNMR signal spectrum; 2) dissolving the thiol compound to be tested in an aqueous solution with a pH of 10-12, and derivatizing it with 2,4,6-trifluorobenzylamine and o-phthalaldehyde to obtain the nuclear magnetic resonance of each derivatized thiol compound to be tested 19 FNMR signal spectrum; 3) superimposing and comparing the two spectra to identify the thiol compound to be tested; at the same time, the product after derivatization can be 19 The relationship between the ortho or para peak area and the concentration of FNMR is quantified and mutually verified; the method of the invention is simple and easy to implement, can prepare and measure samples immediately, has high sensitivity and selectivity, can effectively avoid interference from other biological molecules, and can be used for qualitative and quantitative analysis of thiol compounds in biological systems.

The invention relates to the technical field of power equipment, and discloses a partial discharge law research method for suspended water drops in flowing transformer oil, which comprises the following steps: S1, changing the flow velocity and temperature in a model; s2, boosting; s3, capturing discharge capacity-phase data by adopting a pulse current method; s4, acquiring PD signals to a digital partial discharge acquisition system; s5, calculating skewness and steepness characteristic values in positive and negative half cycles; s6, sampling for multiple times; s7, carrying out KMO and Bartlett spherical inspection on the KMO and the Bartlett; s8, principal component analysis dimensionality reduction; s9, extracting characteristic parameters; s10, carrying out PSO-SVM verification; and S11, revealing a PD rule by the characteristic value after dimension reduction. The invention provides a method for researching the partial discharge law of suspended water drops in flowing transformer oil under large temperature difference, which comprises the following steps of: calculating characteristic values such as skewness, steepness and signal entropy in positive and negative half cycles, calculating correlation coefficients on an overall phase, taking phase symmetry as characteristic values, and calculating the partial discharge law of the suspended water drops in the flowing transformer oil from two dimensions of the overall and the positive and negative half cycles; and the discharge mechanism in the insulating oil containing the suspended water drops is revealed.