120results about How to "The test results are accurate and stable" patented technology

The invention relates to a method for measuring glycosylated hemoglobin content, which comprises the following steps of: a, uniformly mixing a whole blood sample and hemolytic liquid; b, adding an appropriate amount of hemolyzed sample into latex suspending in glycine buffer solution; c, respectively adding an antibody B reagent and an antibody A reagent after preset time; d, uniformly mixing andreading a scattering value through a specific protein analyzer under the condition of single-wavelength light irradiation; and e, reading the glycosylated hemoglobin content from a standard curve diagram according to the scattering value. The glycosylated hemoglobin content of the blood sample can be directly determined without separately measuring the total hemoglobin content and the glycosylated hemoglobin content of the blood sample by taking fixed-time nephelometry as a detection principle; and antibody working solution does not need preparing in advance, so that the effective service time of the reagents is prolonged, the operating steps are simplified and the measuring time of the sample is shortened.

A method and a device for objects counting in image processing includes acquiring the depth image of any one frame; detecting objects according to the depth image; associating the identical object in different frames to form a trajectory; and determining the number of objects according to the number of trajectories. The devices include an acquisition module for acquiring the depth image of any one frame; a detection module for detecting objects according to the depth image; an association module for associating the identical object in different frames to form a trajectory; a determining module for determining the number of objects according to the number of trajectories. The objects are detected according to the depth image. The identical object in different frames is associated to form a trajectory and the number of objects is determined according to the number of trajectories.

The invention provides an ultrahigh pressure liquid phase detection method for a Chinese patent medicine containing at least two medicinal materials of white paeony root, ginseng, root of red-rooted salvia, sweet worm wood herb, liquoric root, szechuan lovage rhizome, Chinese angelica, astragalus and nutgrass galingale rhizome. The method comprises the following steps of: preparing solution of a test sample and solution of a contrast medicinal material; performing ultra performance liquid chromatography (UPLC) detection by taking acetonitrile-water as a mobile phase and using an ultraviolet detector and/or a mass spectrum detector, wherein the detection wavelength is between 201 and 320nm; and performing result detection, namely detecting whether a corresponding chromatographic peak exists or not at a position where the retention time is as same as that of a contrast medicinal material chromatogram in a chromatogram of the test sample. Compared with thin layer identification and high performance liquid chromatography (HPLC) detection methods, the ultrahigh pressure liquid phase detection method successfully improves the resolution of the chromatogram, shortens the analysis cycle, and ensures more precise and stable results.

The invention provides an automatic photo-stimulated chemiluminescence detector which can enhance the accuracy of chemical analysis. The detector includes a sample introduction module, a sample addingarm module, an incubating tray module, a reagent disk module and a reagent arm module; a sample in the sample introduction module is transferred into a reaction cup located on the incubating tray module through the sample adding arm module; the reagent arm module transfers a reagent in the reagent disk module into the reaction cup after the reaction cup rotates to a specified location with incubating trays; and the sample and reagent in the reaction cup are transferred to a detection module to perform light excitation after the mixing and incubating in the incubating trays are finished, and detection is performed on a luminous signal generated after excitation. The whole operation of the detector is automatic operation, so that the uncertainty problems of individual difference, artificialerrors and operating specifications of manual operation can be effectively avoided, and therefore, the accuracy of chemiluminescence immunoassay can be enhanced.

The invention provides a method for detecting ammonia escape of a flue gas denitrification system. The method includes that flying ash of a first electric field ash hopper of an electrofilter serves as a detection object. Researches show that by analyzing, an excellent linear relationship is existed between ammonia escape converted by ammonia content in first electric field flying ash of the electrofilter and ammonia escape of the flue gas denitrification system, the flying ash of the first electric field ash hopper of the electrofiler is mixed with water to obtain to-be-detected sample solution, the water-to-ash ratio is controlled to be (20-100):2 while the pH (potential of hydrogen) value of the to-be-detected sample solution is controlled to be 6.0-6.8, most of and even all of ammonia in the flying ash is enabled to be solved in the water without ammonia escape, and accordingly an accurate result is obtained. Therefore, the detection result, obtained by the method, of ammonia escape of the flue gas denitrification system is more accurate, and is stable as not being affected by equipment failure.

The invention discloses a photoelectric chessboard comprising a chessboard pane, a microprocessor, a storer, an interface module and a power module and also comprising a chess piece detecting unit anda chess piece displaying unit which are connected with the microprocessor; the chess piece detecting unit comprises an infrared LED driver, an infrared light receiving and transmitting device and ananalog-digital converter; and the chess piece displaying unit comprises an LED driver of white chess pieces, an LED driver of black chess pieces, an LED lamp representing the white chess pieces and anLED lamp representing the black chess pieces. The invention also discloses a use method of the photoelectric chessboard. An infrared LED is driven by the infrared LED driver; the photoelectric conversion is carried out through an photosensitive device; after the signal passes by the analog-digital converter, data is analyzed by the microprocessor and then is sent to a game server; the game serversends the command of moving the chess pieces of the counterpart to the microprocessor; and the LED lamp representing the white chess pieces or the LED lamp representing the black chess pieces is driven by the LED driver of white chess piece or the LED driver of black chess pieces until no chess piece can be moved. The photoelectric chessboard ensures stable signal, can not be affected by the environment and can realize the remote chess playing and the local chess playing.

The invention discloses a depression symptom information evaluation method, which analyzes interview contents of a visitor and a psychologist, fuses voice features and character embedding features ininterview audio and character translations, scores depression-related psychological scale corresponding to the visitor, and improves the evaluation accuracy under the condition of not limiting the interview contents. According to the invention, an objective depression auxiliary evaluation method and rapid, effective and economic depression symptom self-evaluation can be provided for psychologists.

The invention discloses a spontaneous polarization performance testing device for tourmaline powder materials, and relates to a device for testing the electromagnetic performance of a material. The testing device is mainly composed of a sample chamber, a temperature-measuring temperature controller, a signal detector and a data processor, wherein the sample chamber comprises a shielding shell, an insulation sample cell, a heating element, a signal picking electrode, a signal picking electrode interface and a temperature-measuring element; a temperature-measuring outgoing line is used for connecting the temperature-measuring element and the temperature-measuring temperature controller, and the temperature-measuring temperature controller is connected with the heating element through a heating control line; and an electrode outgoing line is used for connecting the signal picking electrode and the signal detector from the signal picking electrode interface, and the signal detector is connected with the data processor through a wire. in a precision constant temperature condition, the device can carry out charge integral amplification on collected polarization charge by a pole plate so as to the spontaneous polarization performance parameter of a tested sample and the defect of inaccurate test result in the prior art is overcome.

The invention relates to a detection device and method for sealing performance between an anti-explosion valve outer wire and a cover plate of a lithium ion battery. The detection device comprises a detection component, a pneumatic reversing switch (17), an oil mist filter (18), a pressure regulating valve (19), an air supply (20), a detection medium (21) and a medium container (22); and the detection component is partially arranged in the medium container (22) filled with the detection medium (21). The detection method comprises the following steps: sleeving a part (14) to be detected on an upper sealing piece (13); driving the upper sealing piece (13) to move downwards by a piston rod (3) to press the part (14) to be detected on a lower sealing piece (15); regulating the pressure regulating valve (19) to inflate air in the air supply (20) to the part (14) to be detected; and observing whether bubbles merge from the detection medium so as to judge the sealing performance between the anti-explosion valve outer wire and the cover plate. The invention is applicable and convenient, and the yield of anti-explosion lithium ion batteries is greatly improved, therefore, the device and the method have practical values.

The invention provides a sample pretreatment method for detecting fat-soluble vitamins in serum through high performance liquid chromatography-tandem mass spectrometry. The specific protein precipitant is adopted and mixed with the internal standard substance working solution to form the internal standard solution, so that sample pretreatment is simply and efficiently completed, no extra sample enrichment or other operation is needed, the recovery rate of fat-soluble vitamins A, E, K1 and K2 in a serum sample can be remarkably improved, and the pretreatment cost of the sample is reduced, so that the detection sensitivity of the fat-soluble vitamins in the serum is greatly improved, and the accuracy and the stability of a detection result can be ensured. Meanwhile, the invention further provides application of ammonium acetate to preparation of the protein precipitant.

The invention provides an implicit magnetic code detection device. The implicit magnetic code detection device comprises a magnetic sensor, an amplifying circuit connected with the magnetic sensor, a shaping circuit connected with the amplifying circuit, and an A / D conversion circuit connected with the shaping circuit, and further comprises a single-chip microcomputer, a display unit connected with the single-chip microcomputer, and a data center, wherein the single-chip microcomputer is connected with the output terminal of the A / D conversion circuit. The implicit magnetic code detection device is low in cost, small in size, and convenient to carry; meanwhile, time for detection is short, and detection is accurate. By the introduction of the data center, large-scale management of data storage, calling and updating are more convenient. The invention further provides an implicit magnetic code detection method, wherein the magnetic sensor is used for picking up a signal, the signal is amplified, shaped and subjected to A / D conversion through the amplifying circuit, the shaping circuit and the A / D conversion circuit respectively, and the signal is transmitted to the single-chip microcomputer; the single-chip microcomputer and the data center are matched with each other for analyzing and identifying the signal, and an identification result is displayed. The implicit magnetic code detection method is simple, high in accuracy, and good in stability.

The invention discloses a people counting method based on a multi-scale mask perception feedback convolutional neural network. The people counting method comprises the following steps: (1) searching and manufacturing a people counting database; (2) generating training and testing samples; (3) carrying out data preprocessing on samples of the training and testing set; (4) constructing a people counting deep network model; (5) sending the generated training sample into the constructed deep network model for training, and optimizing the parameters of the network through an Adam optimization method; and (6) testing the deep network model. According to the method, a people counting network is constructed by using a multi-task learning strategy, the result of mask estimation branching is fused into picture features by the network, and then a robust people counting model is obtained; according to the method, a simple fusion strategy and a multi-scale learning strategy based on hole convolution are used, so that an accurate and stable detection result is realized, and complex configuration and memory consumption in application are avoided.