42results about How to "Reduce complicated steps" patented technology

The invention discloses an end-to-end non-contact atrial fibrillation automatic detection system based on a vPPG signal. The system comprises a data preprocessing module which is used for recording aface video of a to-be-detected user, removing the positions, with large beginning and ending noise interference, of the recorded video, carrying out downsampling, and cutting the video to be with theunified length and size; a pulse wave extraction module which is used for extracting the vPPG signal of the face video through a P3D convolutional neural network; a data denoising module which is usedfor denoising vPPG data based on a neural network of FCN-DN; and an atrial fibrillation detection module which is firstly used for training a model to enable the model to learn to divide an atrial fibrillation segment and a non-atrial fibrillation segment, and then inputting a vPPG signal segment to be detected into the trained atrial fibrillation detection model so as to judge whether the vPPG signal to be detected contains the atrial fibrillation segment or not. A parallel network combining a long-term and short-term memory network containing an attention mechanism and a convolutional network provided by the invention enables the detection of the model to be comprehensive, high in precision and good in effect.

The invention provides an implementation method for automatically converting and executing parameterized SQL based on Excel, belongs to technical field of computer applications, the performance of a automatic conversion SQL can help developers to execute the SQL language quickly, convert basic parameterized SQL, stored process SQL, tree help, etc, tracked by the event tracker into executable SQL quickly, and can connect the database to execute directly and check result. Project research and development and maintenance efficiency. The invention is good in use effect in EPR system project maintenance, and is also suitable for other systems.

The invention relates to the technical field of system data monitoring, and discloses a SpringAop-based system performance monitoring method and devices, and an electronic device. The method comprisesthe following steps: defining a performance monitoring interceptor based on Spring Aop; associating the performance monitoring interceptor with all to-be-intercepted methods in the monitored system;when a calling operation on the target to-be-intercepted method is detected, intercepting the target to-be-intercepted method by utilizing a performance monitoring interceptor so as to update a monitoring statistical result on the target to-be-intercepted method; wherein the target to-be-intercepted method is any to-be-intercepted method in the monitored system; and according to the monitoring statistical results of all the to-be-intercepted methods in the monitored system, generating and outputting a method calling frequency ranking list, a method error frequency ranking list and a single method average execution time-consuming ranking list of the monitored system. By implementing the method, the system performance monitoring efficiency can be improved.

The invention relates to a reagent for measuring high-density lipoprotein cholesterol in serum and a preparation method. The technical problem to be solved by the present invention is to provide a method for preparing a reagent for measuring cholesterol in high-density lipoprotein and the improvement of the reagent. The reagent prepared by this method should have good specificity, simple and convenient detection, high test accuracy, and It can be detected on various types of automatic biochemical analyzers. The technical scheme is: the components of the reagent are as follows: A. high-affinity enzyme compound, which is obtained by the reaction of enzyme and compound, and the molar mixing ratio of the two components when reacting is 1:1-20:1; B. surfactant, The mixing ratio is 0.003-30% of the weight percentage of component A; C. appropriate amount of preservatives, stabilizers and chromogens. An appropriate amount of catalyst and anti-interference substances are also added to the reagent. The preparation method comprises the following steps: 1. compound activation; 2. enzyme dissolution; 3. mixed reaction; 4. configuration.

The invention discloses a method and device for improving the hydrogenation of silicon tetrachloride. The method comprises the following steps: flatly spreading metallic silicon powder of which the purity is 95-98% in a hydrogenation reactor, continuously introducing preheated silicon tetrachloride gas, hydrogen gas and hydrogen chloride gas, and reacting to obtain mixed gas A; enabling the mixed gas A to be sequentially subjected to dry dust removal and wet dust removal to obtain mixed gas B; cooling the mixed gas B until mixed liquid C is obtained; and transferring the mixed liquid C to a rectification device, and separating. The device disclosed by the invention comprises the hydrogenation reactor, a dry dust removal device, a heat recovery device, a wet dust removal device, a cooling device, a liquid storage tank and the rectification device which are sequentially connected, wherein the liquid storage tank is also connected to the wet dust removal device. The method and the device for improving the hydrogenation of silicon tetrachloride, provided by the invention, have the advantages of simple and convenient operation process, high continuity and stability, energy saving and consumption reduction.

The invention provides a method for rapidly evaluating lipid compositions in different milk fat globules. The method includes the steps of collecting Raman spectrum charts of the milk fat globules of different sizes in a to-be-tested milk sample through a Raman spectrum analysis system after the to-be-tested milk sample is mixed with agarose, comparing characteristic peaks of the Raman spectrum charts, and judging the contents of lipid compositions through the comparison of strength of the characteristic peaks. By means of the Raman spectrum analysis system, compared with a traditional method, the method has the advantages that all complicated steps for extracting lipid in milk are omitted, spent detection time is short, cost is reduced, efficiency is improved, and the contents of lipid compositions in the milk fat globules of different sizes can be compared.

The invention provides a digital caliper for rapidly measuring various sizes of capacitors, belonging to the technical field of measuring tools. The invention aims to solve the technical defect that existing digital display calipers are not suitable for batch detection of the sizes of the capacitors. According to a technical scheme in the invention, the digital caliper comprises a main caliper, a caliper frame, a circular bearing platform mechanism, a first distance measuring sensor assembly, an auxiliary caliper, a longitudinal measuring rod, girdling anvil assemblies, a second distance measuring sensor assembly, a capacitive grating sensor assembly, a processor and a display. The digital caliper has the beneficial effects that a measured capacitor is clamped through the circular bearing platform mechanism and a main caliper measuring jaw; the height of the measured capacitor and the height of a girdling part are measured through the main caliper and the auxiliary caliper; the diameter of the measured capacitor is measured through the first distance measuring sensor assembly located on the periphery of the measured capacitor; the girdling part is clamped through the girdling anvil assemblies correspondingly connected to the two ends of the longitudinal measuring rod in a sliding mode; the diameter of the girdling part is measured through the second distance measuring sensor assembly; values of various sizes of the measured capacitor are obtained through the processor and are displayed through the display; and the purpose of measuring various sizes of the capacitor at a time is achieved, and detection efficiency is high.

The invention discloses a portable trolley furnace which comprises a furnace body, a furnace door, a trolley and a plurality of wheels located below the trolley, wherein the furnace body comprises a furnace shell and a furnace lining, the trolley is located below the furnace body, and the lengths, exposed from the trolley, of the two sides of the furnace body are equal to the thickness of the furnace door. When the trolley is located at the leftmost end, a feeding platform is arranged below the furnace door, the wheels are located below the trolley and embedded in tracks, a draught fan is arranged above the furnace body, the front end of the draught fan is embedded in the furnace body, and seamless welding is adopted for a connecting surface. The portable trolley furnace has the advantages that heat loss is avoided during heating, products heated in the furnace do not need to be removed during cooling, cooling can be achieved only by starting the draught fan and opening the furnace door to enable cross-ventilation between the inside of the furnace and the outside of the furnace to be achieved, and certain complicated processes are omitted.

The invention belongs to the technical field of steel alloy materials and particularly relates to low-density Fe-Mn-Al-C hot-rolled Q&P steel and a manufacturing method of the low-density Fe-Mn-Al-C hot-rolled Q&P steel. The low-density hot-rolled Q&P steel comprises, by weight percentage, 0.22-0.25% of C, 2.8-3.2% of Mn, 1.8-2.2% of Al and the balance Fe. After controlled rolling, the experimental steel is air-cooled to 280-340 DEG C on line and then furnace-cooled to the room temperature, finally a small amount of ferrite, martensite and retained austenite complex phase Q&P structure is obtained, the tensile strength is larger than or equal to 1,135 MPa, and the elongation is larger than 19%. Compared with existing Q&P steel, by the adoption of the low-density Fe-Mn-Al-C hot-rolled Q&P steel and the manufacturing method, through reasonable composition design, the density of the experimental steel is reduced, the dependence of martensitic transformation on the cooling speed is reduced, the quenching process is replaced with air cooling, and the problems of uneven microstructure and property, poor plate shape and the like caused by on-line low-temperature quenching (below Ms) are solved.

The invention belongs to the technical field of steel alloy materials, in particular to Q-and-P organized hot rolled Fe-Mn-Al-C steel obtained by quenching to a bainite zone and a manufacturing method. The hot rolled Fe-Mn-Al-C steel is prepared from the chemical components in percentage by weight: 0.22%-0.25% of C, 2.8%-3.2% of Mn, 1.8%-2.2% of Al, and the balance of Fe. The phase change dynamicsis controlled by composition design, experimental steel is cooled above an Ms temperature, sufficient bainite phase change is avoided when the steel is cooled slowly afterwards, and a structure withmartensite / bainite being as a matrix is obtained. The experimental steel is air-cooled to 500-550 DEG C after controlled rolling is carried out, then furnace cooling is carried out to the room temperature, finally, a complex phase Q-and-P structure of a small amount of ferrite, martensite / bainite and retained austenite is obtained, the tensile strength is more than 1050MPa, and the elongation is more than 20%. Thus, the difficult problem of low temperature quenching of the Q-and-P steel is not prone to controlling is solved.

The invention discloses a catalyst-absorbent complex for absorbing and strengthening low-carbon hydrocarbon steam reforming hydrogen and a preparing method of the complex, which are mainly used for the steam reforming hydrogen production through low-carbon hydrocarbons of C1-C4 and the like. The method is characterized in that a coprecipitation method is adopted to organically combine a catalyst for hydrocarbon steam reforming reaction and an absorbent for CO2 carboxylation reaction to form a whole body, so that micro-scale uniform distribution is realized, thus a precursor with a hydrotalcite structure is formed, and the catalyst-absorbent complex is prepared through high temperature sintering. The complex can effectively stimulate CO2 situ absorption, and excellent catalyzing and absorbing activities and stability of the complex are maintained through the hydrotalcite structure of the precursor. The chemical formula of the complex is Nix-Mgy-Caz-Al-O.

The invention relates to a simple and feasible preparation method of modified montmorillonite for polymer / inorganic nanocomposite materials. After reaction modification, the obtained modified montmorillonite can be directly used in polymer / montmorillonite nanocomposite materials to realize effective intercalation of polymer macromolecules between montmorillonite layers and obtain nanocomposite materials with excellent performance. The method has the advantages of simplicity, low production cost, no need to use water or solvent, no environmental pollution, etc., and has good industrial application prospects.

The invention relates to a quick test method. Firstly, rice bran is partially degreased, lipoxidase in the rice bran which is partially degreased is extracted with a buffer solution, the lipoxidase extracting solution is added to a prepared phosphate-linoleic acid-polysorbate 20 substrate solution, changes of light-absorption photometric values are tested under 234 nm in 5 minutes, meanwhile, the protein content in the lipoxidase extracting solution is tested, and then activity of the lipoxidase in the rice bran can be obtained. According to the method, the activity of the lipoxidase in the rice bran is effectively activated through partial degreasing, the detection limit is raised, the buffer solution, the substrate solution and passivating crude enzyme serve as reference solutions, test errors of the crude enzyme are effectively eliminated, and complicated steps of passivating of the crude enzyme are eliminated. The method is easy and convenient to operate, precise in result, good in reproducibility, capable of being widely used for grain and oil quality test and control in grain processing enterprises, storage enterprises and grain and oil test organizations.

The invention provides a method for rapidly evaluating lipid compositions in different milk fat globules. The method includes the steps of collecting Raman spectrum charts of the milk fat globules of different sizes in a to-be-tested milk sample through a Raman spectrum analysis system after the to-be-tested milk sample is mixed with agarose, comparing characteristic peaks of the Raman spectrum charts, and judging the contents of lipid compositions through the comparison of strength of the characteristic peaks. By means of the Raman spectrum analysis system, compared with a traditional method, the method has the advantages that all complicated steps for extracting lipid in milk are omitted, spent detection time is short, cost is reduced, efficiency is improved, and the contents of lipid compositions in the milk fat globules of different sizes can be compared.