628results about How to "Simplified processing steps" patented technology

The invention relates to a human face expression identification method, in particular to a convolutional neural network-based human face expression identification method. The method comprises the steps of firstly obtaining human face images from a video, performing scale normalization operation processing on the obtained human face images to obtain human face images same in size, and performing alignment preprocessing operation on the human face images same in size to obtain preprocessed human face images; and performing feature extraction operation on the preprocessed human face images by using a convolutional neural network to obtain features of the human face images, and performing classified identification operation on the features of the human face images by utilizing a Softmax classifier. A human face expression identification algorithm realized by utilizing the convolutional neural network is an end-to-end process. According to the method, the human face images only need to be simply preprocessed and then fed into the convolutional neural network, the feature extraction is automatically performed, and a classification result is given, so that the accuracy is greatly improved, adjustable parameters are reduced, and intermediate processing steps are simplified to a great extent.

The invention discloses decompressed purge-and-trap processing equipment for a non-volatile organic compound in a water sample and a processing method thereof. The invention is characterized in that the equipment is formed by sequentially connecting a sample heater (1), a purge bottle (2), a trapper (3), a pressure controller (4) and a pump (5), wherein purge gas (6) is connected with the purge bottle (2) through a purge gas inlet (7); the purge bottle is connected with the trapper (3) through a purge gas outlet (8); the trapper (3) is connected with the pump (5) through the pressure controller (4); the gas trapped by the trapper (3) is taken out and then placed into a heater (13) of the trapper; chromatographic carrier gas (14) is connected with a chromatographic injection port (12) in a column oven (11) through the trapper (3) and a transmission pipeline (15); and the chromatographic injection port is connected with a chromatographic detector (9) through a chromatographic column (10). The processing method comprises the following steps: forming a negative pressure environment around a test sample under the action of the pump, and increasing the vapor pressure of the non-volatile organic compound under the negative pressure environment; purging the bottom of the sample by utilizing inert gas so that the target compound can be trapped by the trapper after being blown out from the sample; and finally, resolving the target compound at high temperature and then carrying out chromatographic analysis.

The invention provides an UPLC-MS/MS method for analyzing four categories and 29 types of restricted veterinary drug residues in animal foodstuff. The method is characterized in that an advanced QuEChERS method is adopted for conducting sample preprocessing, a sample is subjected to McIlvaine buffering liquid-acetonitrile extraction, an extracting solution is subjected to acidification and salting out, a small amount of acetonitrile phase is taken, a C18 and NH2 adsorbing agent is utilized for conducting dispersive solid-phase extraction and purification, after purification liquid is subjected to concentration and volume setting, an ultra-high performance liquid chromatography-tandem mass spectrometer (UPLC-MS/MS) is adopted to conduct detection. The problem that it is difficult for tetracycline class veterinary drug to be extracted and purified along with other types of veterinary drugs is solved, meanwhile the sample processing steps are simplified, the UPLC-MS/MS method has the advantages of being efficient, rapid, low in cost, simple and convenient to operate, good in purification effect and high in sensitivity, and the accuracy and precision both meet the requirement of a multi-residue analysis method.

The invention discloses a method for detecting the organophosphorus pesticide residue in the tobacco, comprising the following steps of preprocessing by adding water of 5-15 times the weight of the tobacco sample to the tobacco sample to sock the tobacco sample, adding 10-20 ml of extracting agent to each gram of the tobacco sample to extract the tobacco sample, centrifuging to obtain organic-phase supernatant, purifying the organic-phase supernatant, concentrating the organic-phase supernatant by blowing with nitrogen, adding acetone solution to the organic-phase supernatant, and filtering the organic-phase supernatant with a organic-phase filtering membrane of 0.2 Mum to obtain the sample solution, wherein the extracting agent is the mixed solution of acetonitrile and acetone which are at the volume ratio of 1-2:1; and detecting the organophosphorus pesticide residue in the sample solution with gas chromatography and mass spectroscopy by using the chlorazol phosphorus as the internal standard substance after finishing preprocessing. Because the extracting agent is used for extracting in the preprocessing step, the target substance in the tobacco sample can be effectively extracted into the organic phase, and the precision for detecting the organophosphorus pesticide residue in the tobacco can be greatly improved.

The invention relates to the technical field of mobile terminal, in particular to a picture processing method and device. The picture processing method includes that acquiring the current environment information of mobile equipment of a camera, wherein the current environment information comprises current weather information, current time information and current light information; determining the current color temperature parameter of the mobile equipment according to the acquired current environment information, and using the current color temperature parameter to process a picture. The picture processing method is capable of improving the picture processing efficiency and improving the picture quality.

The invention discloses a multi-attention mechanism video description method based on space-time and channel, wherein the video features are extracted through a CNN network, the video features and theoutput of the encoded last time are calculated based on the multi-attention network, thus, the attention weights of the video features in time domain, space domain and channel are obtained, and thenthe three weights are calculated again with the video features to obtain the features of fusion, so that we can obtain more effective video features, and finally, the fusion features are coded and output to obtain a more consistent description with the video content.

The invention discloses a method for removing thin cloud of a remote sensing image. According to the method, image processing equipment is adopted for performing cloud removing processing on the remote sensing image to be processed; and the remote sensing image to be processed is a digital remote sensing image which is a multispectral image or full-color image. The method for removing the thin cloud comprises the following steps of: 1, extracting a noise image through low-pass filtering processing; 2, removing a low-pass filtering edge effect; 3, performing cloud removing processing on images of each wave band to be subjected to cloud removing processing by using the extracted noise image; and 4, displaying a cloud removing processing result, properly adjusting the size of a filtering core, correspondingly comparing the cloud removing processing result, and finding out a target image with an optimal cloud removing effect. The method has the advantages of reasonable design, simple steps, wide application range, convenience in realization and good cloud removing processing effect and can be used for effectively solving various practical problems of difficult realization, complicated operating process, low processing speed, poorer cloud removing processing effect and the like of a traditional cloud removing method of the remote sensing image.

The invention discloses a method for detecting aromatic amine in cigarette mainstream smoke by using a gas chromatography-tandem mass spectrometry. The method is characterized by comprising the following steps of: catching aromatic amine compounds in a particulate matter in the cigarette mainstream smoke by using a Cambridge filter; extracting by using hydrochloric acid solution, washing by usingdichloromethane, reducing by using sodium hydroxide and then extracting by using normal hexane, and performing derivatization by using pentafluoropropionic anhydride and trimethylamine hydrochloride;and concentrating and detecting by using the gas chromatography-tandem mass spectrometer (GC-MS/MS) so as to measure the content of the main aromatic amine compounds in the cigarette mainstream smoke. Compared with the conventional method for analyzing the aromatic amine in the cigarette mainstream smoke, the analysis and measurement method has the advantage of simplifying the pretreatment of a sample along with higher sensitivity, high experimental repetitiveness and recovery rate and applicability to analysis of a large batch of samples.

The invention discloses a method and a device for caching webpage content and loading a webpage and a terminal device. The method for caching the webpage content comprises the steps of obtaining an identification mark of a current browsed webpage when a trigger of the browsed webpage is received; judging whether the identification mark of the browsed webpage exists in a preset identification mark set or not; storing the webpage content of the browsed webpage corresponding to the identification mark in a first caching area corresponding to the browsed webpage in caching areas if the identification mark corresponding to the browsed webpage exists in the preset identification mark set; storing the webpage content of the browsed webpage in a second caching area if the identification mark of the browsed webpage does not exist in the preset identification mark set. According to the method and the device for caching the webpage content and loading the webpage and the terminal device, which are disclosed by the embodiment of the invention, loading can be carried out without networking again when a preset website needs to be loaded, the processing efficiency is increased, the energy consumption of the device and the consumption of network data are saved, and the user experience is increased.

The invention relates to a method of processing a wafer, having on one side a device area with a plurality of devices partitioned by a plurality of division lines and a peripheral marginal area having no devices and being formed around the device area, wherein the device area is formed with a plurality of protrusions protruding from a plane surface of the wafer. The method comprises attaching a protective film, for covering the devices on the wafer, to the one side of the wafer, wherein the protective film is adhered to at least a part of the one side of the wafer with an adhesive, and providing a carrier having a curable resin applied to a front surface thereof. The method further comprises attaching the one side of the wafer, having the protective film attached thereto, to the front surface of the carrier, so that the protrusions protruding from the plane surface of the wafer are embedded in the curable resin and a back surface of the carrier opposite to the front surface thereof is substantially parallel to the side of the wafer being opposite to the one side, and grinding the side of the wafer being opposite to the one side for adjusting the wafer thickness.

The invention discloses a method for detecting catecholamine in blood plasma by liquid chromatography tandem mass spectrometry. The method comprises the following steps of preparing a standard product, separating by liquid chromatography, detecting by a mass spectrum, drawing a standard curve, and detecting the catecholamine in the blood plasma. The method has the beneficial effects that the catecholamine is detected by innovatively applying a high-flux liquid chromatography tandem triple quadrupole mass spectrograph; protein is precipitated by acetonitrile, dansyl chloride is used for performing derivative reaction, and the liquid chromatography tandem triple quadrupole mass spectrograph is used for detecting after extraction, so that the pretreatment steps are simple, the interference of a matrix in the blood plasma is effectively removed, and the specificity is good; after the derivatization of dansyl chloride, the detection sensitivity is effectively improved; the high-flux liquid chromatography tandem rod mass spectrograph is used for detecting, three types of catecholamine, including dopamine, epinephrine and norepinephrine, in the blood plasma can be quantitatively and accurately detected; the detection time is short, the flux is high, the detection sensitivity is high, the specificity is good, and the cost is low.

The invention discloses an on-site detection immuno-chip, comprising a chip carrier and an agarose gel layer which is paved on the chip carrier, wherein, the agarose gel layer is fixed with a plurality of antibody microarrays of 4*4, and chip-dedicated fences or Super PAP Pen scribings are used for separating the microarrays from each other; the double antibody sandwich principle is adopted to detect the antigen to carry out the dot matrix of corresponding capture antibody, positive control and negative control on the solid phase carrier simultaneously; the antibody protein is connected with the solid phase carrier through the covalent bond and physical adsorption; the sample liquid to be detected and the chip are directly incubated; the antigen to be detected in the samples combine with the corresponding antibody which is fixed on the chip; a specific monoclonal antibody probe marked by horse radish peroxidase is added and the macroscopic detection results can be obtained after the coloration of substrates. The invention can detect viruses in multiple aquatic animal samples and the results are macroscopic, thus being applicable to rapid and accurate detection of viruses of aquatic animals in breeding production.

The invention relates to a micro-fluidic chip-based gene detection system and a detection method thereof. The detection system comprises a shell, a micro-fluidic chip, an optical device and a rotatingdevice. The micro-fluidic chip is arranged in an accommodating cavity, the micro-fluidic chip is provided with sample adding cells, sample separating elements and reaction elements, and every reaction element comprises a plurality of reaction cells loaded with various detection agents. The detection system has the advantages of realization of simultaneous detection of various pathogenic microorganisms through one-time sample loading, simple sample treatment steps, high detection efficiency, easiness in control of the sample adding volume, realization of the volumes of samples-to-be-detected entering all the reaction cells being same to each other, accurate detection result and automatic detection process, and meets the application requirements of high-efficiency and rapid detection and checking of a lot of pathogenic microorganisms in the port health quarantine.

The invention relates to an aircraft target detection method under a radar scanning mode in wind turbine clutter background. The method includes the following steps that: radar multi-scanning data of wind turbine clutter are obtained through utilizing apriori information, and the maximum Doppler frequency of wind turbine blades is estimated according to the data; super resolution technology is introduced for the obtained radar scanning data, so that frequency resolution can be improved; Hough transform is performed on radar echo data which have been subjected to super resolution processing, so that whether the wind turbine blades are vertical to radar beams can be detected, if the wind turbine blades are vertical to the radar beams, whether an aircraft target exists is further detected, otherwise, the possible Doppler frequencies of the tips of the wind turbine blades and the aircraft are estimated through utilizing the power spectrum of the radar echoes which have been subjected to the super resolution processing; the possible Doppler frequencies are compared with the calculated value of the Doppler frequency of the tips of the wind turbine blades; and whether the aircraft target exists in a range gate can be judged according to a comparison result. With the method of the invention adopted, a situation in which only wind turbine clutter exist and a situation in which aircraft and wind turbine clutter co-exists can be distinguished, and aircraft target detection under wind turbine clutter background with any blade initial angle can be realized.

A method for detecting 10 types of aromatic amines compounds (including aniline, ortho toluidine, m-toluidine, p-aminotoluene, m-phenylenediamine, m-methoxyaniline, 1- naphthylamine, 2- naphthylamine, 3- aminobphenyl and 4- aminobphenyl) in cigarette mainstream smoke by liquid chromatography-tandem mass spectrometry is characterized in that a Cambridge filter and an absorbing bottle containing 5%of HC1 solution respectively gather the aromatic amines compounds in a particle phase matter and a gas phase matter of mainstream smoke, after the 5%HCI solution is used for extracting the aromatic amines compounds on the filter, the aromatic amines compounds are purified by an HLB (hydrophile-lipophile balance) solid-phase extraction column, and a liquid chromatography-tandem mass spectrometry instrument is used for determining the 10 types of aromatic amines in the mainstream smoke in cigarettes. Compared with an existing GC-MS (gas chromatography-mass spectrometer) analysis method for detecting aromatic amines in mainstream smoke of cigarettes, the method does not need derivatization reaction or liquid-liquid extraction operation, greatly simplifies pretreatment steps of samples, improves analysis efficiency, and can more comprehensively detect harmful aromatic amines compounds in mainstream smoke of cigarettes.

This invention discloses one metal chelate nanometer magnetic balls and its process method and application, which comprises the following steps: using metal salt and surface to cover hydroxyl group nanometer magnetic ball as main materials to complex metal ion to get the magnetic ball; then using body liquid to extract protein and polypeptide by use of magnetic field; the protein polypeptide for basic aid laser to absorb fly time mass spectrum and electrical spray mass spectrum for analysis.

The invention discloses a functionalized Fe3O4 nano-particle and a preparation method and application of the functionalized Fe3O4 nano-particle. The preparation method comprises the following steps of: (1) under inert atmosphere, adding FeCl2 and FeCl3 into the mixed solution of sodium hydroxide aqueous solution and hydrochloric acid solution for reaction to obtain Fe3O4 nano-particles; and (2) reacting carboxymethyl-alpha-cyclodextrin with Fe3O4 nano-particles in PBS (Phosphate Buffer Solution), thereby obtaining the functionalized Fe3O4 nano-particles. The Fe3O4 nano-particle modified by alpha-cyclodextrin provided by the invention can simultaneously have good enrichment and purification abilities to trace phenylarsonic acid in complex samples; and meanwhile, the Fe3O4 nano-particle is superparamagnetic, so that centrifugation is not needed in sample processing, the pretreatment procedures of the sample are greatly simplified, the pretreatment time is shortened, and the pretreatment efficiency of the sample is improved.

The invention discloses a detecting and evaluating method for appearance quality of concrete. The detecting and evaluating method comprises the following steps: firstly, selecting a detection sample with the area of S0, and shooting to obtain a surface photo; secondly, carrying out binarization processing on the surface photo; thirdly, analyzing the surface photo subjected to the binarization processing to obtain the percentage A of pixel points on a defective part; fourthly, calculating defect area S of the detection sample; fifthly, smearing a filling agent on the surface of the detection sample, and equivalently replacing detect volume V of the detection sample according to change of volume V0 before the filling agent is smeared and V1 after the filling agent is smeared; sixthly, calculating the defect average depth H of the detection sample, wherein the defect average depth H is equal to V/S; seventhly, comprehensively evaluating the surface appearance quality of the concrete according to the defect average depth H. According to the detecting and evaluating method disclosed by the invention, appearance defects of the concrete are quantitatively measured by adopting an image binarization processing technique and an isovolumetric replacement method, so that influence from human factors can be avoided, and evaluation for the appearance quality of the concrete is scientific and objective; in addition, the method is efficient and convenient, so that labor cost can be greatly reduced.

The invention discloses a detection method for high throughput liquid chromatogram tandem mass spectrum. The method comprises the following steps: (S1) preparing a sample; (S2) performing derivatization reaction; (S3) pretreating the sample; (S4) separating the liquid chromatogram; and (S5) detecting the tandem mass spectrum. Besides, the invention also discloses a method for detecting four catecholamine metabolites through a high throughput liquid chromatogram tandem mass spectrometry. The detection method provided by the invention is fit for the detection for the catecholamine metabolites in human plasma and has the advantages of simple sample pretreatment, capability of simultaneously detecting four catecholamine metabolites, excellent detection specificity, short time in the whole detection process and high throughput.

The invention relates to an ion chromatography circulating column switching system, especially relates to an ion chromatography analysis system for on-line cycling separation and detection of high-concentration base ions having near chromatographic retention characters and trace irons requiring detection. The invention discloses an ion chromatography circulating column switching analysis system. The system is characterized by: converting an elutriant into water and removing eluting power of the elutriant after flowing through a suppressor; carrying out on-line cycling elimination for the high-concentration base ions and carrying out cycling analysis for the irons requiring detection through switching valves. The switching analysis system provided by the present invention comprises: a pump, a six-way valve, a ten-way valve, a protection column, a analysis column, a enrichment column, the suppressor, a conductivity detector, a sample loop, a sample injector and a waste liquid bottle. The switching analysis system provided by the present invention can be applicable for elimination of the high-concentration base ions during the ion chromatography separation and detection process for a series of irons having the near chromatographic retention characters, and has very high practical value.

The invention discloses a high-throughput liquid chromatography tandem mass spectrometry detection method with high-throughput liquid chromatography tandem mass spectrometry, wherein the method includes the steps of S1 sample preparation, S2 sample pretreatment, S3 liquid chromatography separation, S4 tandem mass spectrometry detection and the like. In addition, the invention also discloses the method for detecting 15 kinds of bile acids by the high-throughput liquid chromatography tandem mass spectrometry method. The method provides the high-throughput liquid chromatography tandem mass spectrometry detection method, wherein the detection method is suitable for detection of the bile acids in human serum, has simple sample pretreatment, can simultaneously detect 15 kinds of bile acids, andhas the advantages of good detection specificity, short whole detection process time and high throughput.

The invention discloses a Renminbi serial number automatic recognition method. According to the method, on the basis of profound understanding of the layout of Renminbi image structures, a set of algorithms which can accurately identify the edge, orientation and serial number area of the Renminbi is designed; the speed of serial number recognition is greatly improved through efficient algorithms and carefully-designed processing steps and by means of the functions of a mature OCR (optical character recognition) engine; on the basis of the scientific statistical analysis of the recognition effect of the OCR (optical character recognition) engine, the understanding of a serial number pattern and the comprehensive utilization of the advantages of a plurality of engines, the mature open-source OCR engine is applied to the specific field of serial number recognition; the accuracy of serial number recognition is ensured; and extremely high recognition speed is provided.

The invention discloses a preparation method of P-chlorophenylhydrazine hydrochloride. The method comprises the following steps: diazotizing chloroaniline taken as a raw material so as to prepare a corresponding diazonium salt; mixing anhydrous sodium sulfite with sodium hydrogen sulfite in a stirring manner, maintaining a pH (Power Of Hydrogen) value within 6 to 7, controlling a temperature below 40 DEG C, slowly adding the diazonium salt below a liquid surface and reacting at the temperature of 60 DEG C to 90 DEG C according to the molar ratio of the p-chloroaniline to the sodium hydrogen sulfite being 1:(1-1):3; maintaining the unchanged pH value in the step 2, slowly adding hydrochloric acid so as to maintain the pH value within 1 to 3, reacting for 1 to 3 hours at the reaction temperature of 40 DEG C to 90 DEG C, cooling to a room temperature, filtering and drying so as to obtain a reddish P-chlorophenylhydrazine hydrochloride solid. The pH value of the reaction system is maintained within 6 to 7 by taking a mixture of the sodium sulfite and the sodium hydrogen sulfite as a reducing agent, so that the phenomenon that the pH value is always regulated by NAOH (sodium hydroxide) or HCL (hydrogen chloride) in a reaction process is avoided; and the repeated heating during the reaction process is not required, so that the temperature is convenient to control; and the adding amount of water is reduced, so that the discharge of wastewater is greatly reduced, namely, the wastewater treatment at a later period is avoided. As a result, the cost is lowered.

The invention relates to a video monitoring field, and discloses a method and device for performing irregular polygon mosaic processing on a monitored image. The method comprises the following steps: computing a maximum value and a minimum value of a coordinate of a shielding region, that is represented by a polygon, at a first dimensional direction; in the maximum value and minimum value range of the coordinate, scanning the shielding region line by line by using a scanning straight line vertical to the first dimension direction by using a predetermined step length, dividing the shielding region into a plurality of shielding rectangular blocks through the scanning, and copying data in the shielding rectangular blocks to a processor in a DMA (direct memory access) manner to process.