15results about How to "Achieve strict control" patented technology

The invention provides a communication method and system for time-delay-free ultra-high-definition image transmission IP core software, and relates to the technical field of image communication, and the method comprises the steps: analyzing the image content, and recognizing a static scene and a dynamic scene; performing scene complexity evaluation, and performing coding parameter adaptive analysis to obtain a coding strategy; a display device connected with the IP core software and used for identifying display parameters; performing mode matching adjustment, and determining an adjustment coding strategy; and according to the adjustment coding strategy, transmission network bandwidth is optimally allocated with no transmission delay as a target, a transmission channel is established, the transmission channel comprises a transmission forcing timestamp, and the transmission forcing timestamp is used for controlling a data transmission time sequence and a transmission time node. The technical problem that the real-time performance and efficiency of ultra-high-definition image transmission are poor due to the fact that the prior art lacks effective bandwidth management and parameter optimization strategies for dynamic image content and is difficult to meet the requirement of non-delay transmission in different scenes is solved.

The invention discloses application of an anaerobic baffle plate-microbial electrolysis-constructed wetland coupling process in the aspect of rural domestic sewage treatment. The principle is based on a novel volatile fatty acid (VFAs) comprehensive utilization technology. The anaerobic baffle plate-microbial electrolysis-constructed wetland coupling process is mainly composed of a four-compartment anaerobic baffle plate reactor and a multi-section multi-stage microbial electrolysis and horizontal subsurface flow type constructed wetland coupling reactor, and the specific working process is as follows: (1) rural domestic sewage is used as inlet water, firstly enters the anaerobic baffle plate reactor and then enters the horizontal subsurface flow type constructed wetland coupling reactor; carrying out anaerobic hydrolysis to produce VFAs and gas production reaction; (2) starting a microbial electrolysis-constructed wetland coupling reactor; and (3) respectively introducing effluent and produced gas of the anaerobic baffled reactor into a microbial electrolysis-constructed wetland coupling reactor, integrally regulating and controlling the structure and activity of a microbial community, efficiently degrading VFAs into CO2 and CH4, and simultaneously removing nitrogen and phosphorus pollutants, thereby realizing the recycling of sewage treatment.

This invention relates to a method for producing thin-gauge low-density steel sheets using a lap-rolling process. The chemical composition of the steel sheet, by mass percentage, is: C: 0.70–1.20%, Si: 0.10–0.50%, Mn: 16.00–24.00%, P: ≤0.015%, S: ≤0.003%, Al: 7.00–10.00%, Ni: 4.00–8.00%, Nb+Ti: 0.02–0.20%, with the balance being iron and unavoidable impurities. The method includes the following steps: billet preparation, billet compositing, billet welding, compositing billet heating, compositing billet rolling, steel sheet separation, and compositing billet straightening. A low-density steel intermediate billet of a certain thickness and identical length and width is selected as the lap-rolling billet. After welding, thin-gauge low-density steel sheets with a thickness of 3–6 mm and a width of 2000–3500 mm are produced on a medium-thick plate mill. The steel plate has an Fe-Mn-Al-C series composition and a density of 6.90-7.10 g / cm³. 3 The finished steel plate has a yield strength ≥1000MPa, tensile strength ≥1100MPa, elongation ≥20%, and Charpy V impact energy ≥20J at -40℃. The rolled steel plate has good uniformity in shape, thickness tolerance ≤±0.25mm, and flatness ≤4mm / m.

The invention provides a safety operation and maintenance method and system, and relates to the technical field of operation and maintenance operation, and the operation and maintenance method comprises the following steps: creating a maintenance task; after receiving the maintenance task, the terminal equipment sends a maintenance request to the operation and maintenance gateway; the operation and maintenance gateway verifies whether the maintenance request is passed or not, and if the verification is passed, the authority of accessing the operation and maintenance gateway is opened for the terminal equipment; otherwise, blocking; after the terminal equipment accesses the operation and maintenance gateway, the maintenance task is sent to the operation and maintenance gateway; the operation and maintenance gateway executes the following steps: extracting a maintenance instruction from the maintenance task, and evaluating the risk of the maintenance instruction acting on the operation and maintenance object to obtain a maintenance instruction evaluation value; judging whether the maintenance instruction evaluation value belongs to an evaluation threshold interval or not; if so, opening the authority of accessing the operation and maintenance object for the operation and maintenance gateway; after the operation and maintenance gateway accesses the operation and maintenance object, a corresponding maintenance instruction is sent to the operation and maintenance object for maintenance; and if not, blocking is carried out. And the external connection risk and the occurrence probability of malicious code infection are reduced.

The invention provides a circulation security database agent system and method oriented to data controllable sharing, and relates to the technical field of database security control, the system comprises a database agent module, a database engine, a database client, an external authorization module, a rewriting rule module and a configuration storage module, and the database agent module analyzes the access request, rewrites the uplink message according to the rewriting rule and the configuration information, and transmits the uplink message to the database engine. And the rewriting rule module realizes specific rewriting of the strategy according to the user information of the original SQL message and the database information. And the external authorization control module is used for writing the authorization information into the configuration storage module so as to trigger authorization verification of the database agent. Aiming at four types of agent management and control strategies, the available time of a database, the number of query times, the number of rows of data returned by each query and the total size of query contents are specifically controlled.

The present application relates to the technical field of artificial intelligence and industrial process modeling, in particular to a time series data generation method and device based on Gamma variational autoencoder, comprising: modeling the latent variables by using Gamma distribution in the variational autoencoder, and when training the variational autoencoder, first, according to the constraint condition, normalizing each variable value of the original time series data in the training set as the training input, and then introducing a differentiable reparameterization sampling mechanism to sample the Gamma distribution constructed by the encoder output parameter, so as to solve the training instability problem existing in the traditional sampling method under the condition of small shape parameter, so that the trained variational autoencoder can significantly improve the constraint satisfaction rate and physical consistency of the generated time series data. The present application can stably generate high-quality time series data with good engineering usability.

The application belongs to the technical field of cable fire prevention, and relates to a fireproof cable groove and a preparation method thereof. The fireproof cable groove is installed at a joint of a railway viaduct or a tunnel cable trench, is made of a full inorganic material, and has a simple and easy-to-operate preparation method. The fireproof cable groove comprises a cable groove body and connecting pieces installed at two ends of the cable groove body. The cable groove body is sequentially nested from outside to inside with an outer fireproof structure shell, an intermediate thermal insulation layer and an inner fireproof inner container. The inner side of the slot of the outer fireproof structure shell is provided with an inwardly extending inward flange along the length direction, and the outer side of the slot of the inner fireproof inner container is provided with an outwardly extending outward flange along the length direction. The inward flange and the outward flange are arranged in a top-and-bottom corresponding mode, and are mechanically connected through the connecting pieces at the two ends. The cable groove has a unique nested structure, can realize efficient heat insulation under high-temperature long-time fire burning of 800 DEG C or above, has excellent outdoor weather resistance, corrosion resistance and convenient installation and maintenance, and can control the cost within an acceptable range of engineering.

The application provides a vacuum brazing process for improving the oxidation resistance of a GH4738 and GH3536 alloy assembly, and relates to the technical field of improving the oxidation resistance of an assembly of two different component alloys. The method comprises surface treatment of alloy parts to be welded to obtain clean alloy parts; assembling and fixing the two alloys; prepositioning of the filler metal; and finally, vacuum brazing heat treatment of the assembly with the filler metal. The application controls the gap size of the two alloy brazed joints by synergistically controlling the type and amount of filler metal, so that the alloy assembly has unexpected effects in terms of oxidation resistance, and the service life of the assembly in a high-temperature oxidation environment is improved. After the process of the application, the assembly reaches the complete oxidation resistance level under the condition of high-temperature oxidation at 730 DEG C, and the oxidation resistance is at least 1 times higher. The method is stable, easy to implement, low in cost, high in efficiency, and conducive to large-scale industrial production and popularization and application.

The invention discloses a method for detecting substances such as 1-bromo-4-chlorobutane by using a gas chromatography, which comprises the following steps: (1) dissolving reference substances of 1, 4-dichlorobutane, 1, 4-dibromobutane, 1-bromo-4-chlorobutane, 4-chloro-1-butanol and 4-bromo-1-butanol in the same solvent to obtain a system applicable solution; (2) dissolving a test sample containing 1-bromo-4-chlorobutane in a solvent to obtain a test sample solution; (3) performing gas chromatography detection, and calculating the content of each substance by an external standard method; the initial column temperature of the chromatographic column is 45-55 DEG C, the temperature is kept for 2 min, the temperature is increased to 100 DEG C at the rate of 1-5 DEG C / min, then the temperature is increased to 250 DEG C at the rate of 15-25 DEG C / min, and the temperature is kept for 5 The method is simple, convenient and rapid to operate, high in specificity, high in sensitivity and high in accuracy, and effectively fills the blank in the field of methods for detecting haloalkane impurities in synthesis of 1-bromo-4-chlorobutane.

The invention provides a method for preparing a grid electrode of a radio frequency GaN HEMT device, and the method comprises the steps: providing a semiconductor structure which comprises a substrate, a buffer layer, a GaN channel layer, an AlN insertion layer, an AlGaN barrier layer, a first dielectric layer, a source electrode, a drain electrode and a second dielectric layer from the bottom to the top; a thick dielectric layer is deposited on the second dielectric layer, and planarization processing is carried out on the thick dielectric layer; forming an anti-reflection coating and a photoresist layer on the surface of the thick dielectric layer, and patterning the photoresist layer to form a grid opening area; sequentially etching the thick dielectric layer, the second dielectric layer and the first dielectric layer to form a gate groove; removing the thick dielectric layer; and depositing gate metal in the gate groove, and then forming a gate electrode through a stripping process. After the second dielectric layer is formed, the thick dielectric layer is grown on the surface of the second dielectric layer, the step difference is eliminated through CMP, grid photoetching and etching are carried out, and finally the thick dielectric layer on the surface is removed, so that the grid etching morphology is effectively improved, and strict control over the grid line width is achieved.

The present invention discloses a control size control device for obliquely oriented bipolar magnets and a control method thereof. The magnets are loaded by a loading assembly and placed on a magnetic deflection detection platform. The magnets are erected along their own magnetic deflection direction by utilizing the magnetic field of a permanent magnet assembly below the magnetic deflection detection platform. At this time, a deflection detection camera takes a picture of the magnet at one end of the magnet to determine whether the magnetic deflection direction of the magnet is in the right direction. Then, a reversing module can horizontally rotate the magnet with the reverse magnetic deflection to align it according to the judgment result of the deflection detection camera. Then, a magnetizing transfer module places the aligned magnets on a magnetizing mechanism for magnetization. Then, a unloading assembly unloads the magnetized magnets. After the magnetic deflection detection and reversing steps before magnetization, the magnetic deflection directions of all the magnets on the magnetizing mechanism are the same, so that the positions of the control size of the magnets after magnetization are also the same, thereby achieving strict control of the control size and improving the yield rate.

The utility model provides a high-voltage cabinet disconnecting switch operating mechanism which comprises a binding post and an opening and closing mechanism, a switch gate is installed on the surface of the top of the binding post, a fixing seat is fixedly connected to the surface of the bottom of the binding post, the opening and closing mechanism is arranged on the surface of the bottom of the switch gate, and a double-person mechanism is arranged on the surface of the outer side of the fixing seat. According to the high-voltage cabinet isolating switch operating mechanism, through the arrangement of a double-person mechanism, a limiting block, a limiting rod and a compression spring, strict control over the operating range is achieved, the stability and safety of a switch gate are ensured, two persons are needed to operate at the same time, the possibility of misoperation is effectively reduced, and especially under the dangerous condition, the safety of the switch gate is improved. The second person can carry out rescue and intervention in time, so that the risk of accidents is reduced, misoperation and unforeseen circumstances are effectively prevented, and the effects of equipment operation and personnel safety are guaranteed.

According to the control size control equipment and method for the oblique orientation bipolar magnetizing magnet, a magnet is fed through a feeding assembly and placed on a magnetic declination detection platform, the magnet can stand up in the magnetic declination direction of the magnet under the magnetic field effect of a permanent magnet assembly below the magnetic declination detection platform, and at the moment, the magnetic declination of the magnet can be detected through the magnetic declination detection platform. The deflection angle detection camera photographs the magnet at one end side of the magnet, whether the magnetic deflection angle direction of the magnet can be judged, then the reversing module can horizontally rotate the magnet with the reverse magnetic deflection angle to be straightened according to the judgment result of the deflection angle detection camera, and then the magnetizing transfer module places the straightened magnet on the magnetizing mechanism to be magnetized. And then the magnetized magnet is discharged by the discharging assembly. Through the steps of magnetic declination detection and reversing before magnetizing, the magnetic declination directions of all the magnets on the magnetizing mechanism are the same, so that the positions of the magnetized magnets for controlling the sizes are the same, strict control of the controlling sizes is realized, and the yield is improved.

The invention provides a block chain-based medical material fine management system and device, and a medium, and belongs to the technical field of block chains. Comprising a material information input module used for acquiring and inputting medical material information in real time; the material information chaining module is used for storing the input medical material information to a block chain platform in an encrypted form; the material information query module is used for querying information of medical materials by constructing a data query interface; the material information modification module is used for modifying the selected medical material information according to the requirements of the user, updating related database records and uploading the modified medical material information to the block chain platform; the material information auditing module is used for auditing the medical material information through a preset intelligent contract so as to ensure the validity of the data; and the material information tracing module is used for extracting and analyzing the corresponding block chain data in the block chain platform according to the requirements of the user, and obtaining the full-life-cycle information of the medical materials according to the analysis result.

The invention belongs to the technical field of two-dimensional materials, and particularly relates to a torsion angle electrical device under high voltage and a preparation method thereof. A gold film is used for assisting in preparation, an electron beam coating instrument is used for directly evaporating metal on a PDMS polymer, good physical contact between the metal and a two-dimensional material is used for achieving the purposes of atomic level flatness and pollution-free two-dimensional material transfer, and the two-dimensional material transfer efficiency is improved by controlling the temperature and time in each transfer process. By means of the method, smooth and clean transfer of the two-dimensional material can be simply, rapidly and effectively achieved, the electrical device can be prepared on the diamond anvil face, high-voltage electrical testing can be conducted, and the preparation and machining efficiency of the torsion angle electrical device is effectively improved.