51results about How to "Promote progress" patented technology

The invention discloses a method and system for verifying a broadband impedance characteristic model of a wind turbine generator, and belongs to the technical field of new energy power generation. The method comprises the steps that a simulation working condition is set, under the set simulation working condition, a to-be-verified wind turbine generator broadband impedance characteristic model is used for model simulation operation, and disturbance is injected in the model simulation operation process; collecting model simulation data in a model simulation operation process, extracting a disturbance component from the model simulation data, and calculating an impedance value based on the disturbance component; and based on the impedance value, verifying the accuracy of the broadband impedance characteristic model of the wind turbine generator to be verified. According to the method, the accuracy of the wind turbine generator model can be effectively verified through model simulation, so that the accuracy of new energy grid-connected stability analysis is improved, and the technical progress and safe and rapid development of the industry are promoted.

The invention provides a micro-torque precision reducer performance test system. Comprising a test calculation end, a measurement and control instrument, a driving motor, a load motor, an electric control cabinet, a control cabinet, an automatic locking mechanism, a precise moving mechanism, a torque sensor, a circular grating, a vibration sensor, a displacement measurement system, a control display system, a temperature sensor, a noise sensor and a precise guide rail mechanism. The torque sensors are used for measuring the input torque and the output torque of a measured piece in real time, are respectively arranged near an input shaft and an output shaft, and output real-time signals to the measurement and control instrument; the driving motor provides driving torque for a tested piece and is provided with a torque sensor and a driver. The load motor provides a resistance moment for a tested piece, and is equipped with a motor driver, so that the tested piece can be tested under an externally applied load; the electric control cabinet is used for controlling a tested piece and a power supply; the control cabinet is used for installing a driving motor, and an emergency stop control circuit is arranged in the driving motor.

The invention discloses steel with excellent surface quality for a power battery shell and a manufacturing method thereof. The steel for the power battery shell comprises the following chemical components in percentage by weight: 0.015%-0.025% of C, less than or equal to 0.030% of Si, 0.10%-0.20% of Mn, less than or equal to 0.01% and less than or equal to 0.02% of P, less than or equal to 0.012% of S, 0.03%-0.08% of Cr, 0.02%-0.05% of Alt, 0.002%-0.005% of B and the balance of Fe and inevitable impurities. The cold-rolled sheet for the low-carbon deep-drawing battery shell is produced mainly by accurately controlling components in steel and through the working procedures of hot rolling, layer cooling, acid rolling, annealing and leveling. According to the cold-rolled steel plate produced by the method, the yield strength is 190-260 MPa, the tensile strength is 320-390 MPa, the ductility is larger than or equal to 38%, the HR30T range is 45-50, and the cold-rolled steel plate has the high-speed stamping capacity, certain anti-pressure capacity and excellent surface quality.

The invention relates to the technical field of material science and image processing, in particular to an iron-carbon alloy microstructure identification method based on deep learning, which comprises the following steps of: processing and shooting all metallographic samples; the method comprises the following steps of: calculating a gray histogram of a metallographic image, then calculating a cumulative distribution function, then equalizing the image, and finally cutting the preprocessed image to a proper size; inputting the preprocessed picture into a Swin Transform model to carry out deep feature extraction learning on the picture; and inputting the extracted image features of each class of iron-carbon alloy microstructures into a full-connection layer through a LayerNorm layer and an Average Pool layer to train a multi-classifier, thereby realizing classification and identification of the iron-carbon alloy microstructures. According to the method, various microstructures of the iron-carbon alloy can be efficiently classified and recognized, and the accuracy and efficiency of recognizing the microstructures of the iron-carbon alloy are improved.

The present invention belongs to the field of mechanical design technology, and particularly relates to an Ω-shaped metal ring for connecting composite thin-walled circular tubes, an Ω-shaped metal ring and a composite thin-walled circular tube assembly and a molding method thereof, the Ω-shaped metal ring comprising an Ω-shaped metal ring body, the Ω-shaped metal ring body comprising an Ω-shaped corrugated portion and a circular tube portion extending outward along the outer edge of the Ω-shaped corrugated portion, the wall thickness of the circular tube portion being greater than the wall thickness of the Ω-shaped corrugated portion, the connection between the circular tube portion and the Ω-shaped corrugated portion being formed with a chamfered portion forming a continuous arc transition, and the outer edge end of the circular tube portion being formed with a shoulder whose wall thickness is thicker than that of the circular tube portion. In the present invention, the Ω-shaped metal ring structure can reduce the problems of low strength and large deformation of traditional U-shaped or V-shaped metal ring structures, and provide a connection structure solution for multi-component modular mechanical equipment that simultaneously meets multi-dimensional requirements such as strength, vibration, deformation control, and connection sealing.

The utility model relates to a well type quenching cooling device, which comprises a well type rack, a lifting appliance, a rotating device and an external spraying system, the rotating device is arranged at the top of the well type rack, the external spraying system comprises an external pipeline and external spraying nozzles, the external spraying nozzles are uniformly arranged on the external pipeline along the circumferential direction and the axial direction of the well type rack, and the external spraying nozzles are arranged on the external pipeline. The outer pipeline is externally connected with a water supply system, the lifting appliance is used for fixing a quenching workpiece to suspend the quenching workpiece in the middle of the well type rack, and the lifting appliance is supported on the rotating device and is driven by the rotating device to rotate. According to the utility model, the quenching workpiece can rotate in the well type rack, the spraying dead angle is eliminated, the spraying amount received by the workpiece in the circumferential direction is uniform, the cooling speed is consistent, and the phenomenon that the quality and the performance of the steel pipe are seriously influenced by deformation bending or local cracking of the quenching or cooling steel pipe is greatly reduced or eliminated.

The invention discloses an electrode structure in a flow battery, and particularly relates to an electrode structure with bionic fish gill design in the flow battery, and an electrode main body forms a gill cavity-like structure; the flow channel I is used for allowing electrolyte to flow into the gill-cavity-like structure; the flow channel II is used for the electrolyte in the gill-cavity-like structure to flow out; a gill arch-like structure is arranged in the gill cavity-like structure and is used for guiding electrolyte convection; the gill filament-like structure is used for diffusion and mass transfer of reactants; and the gill-like small sheet structure is used for providing a large number of electrochemical reaction sites. The technical problems that the 3D printing integrated electrode structure design integrates the structure and functional characteristics of a bipolar plate and a porous electrode in a traditional flow battery, the packaging difficulty and the contact resistance of an electric pile unit in the flow battery are reduced, and the power density and the energy efficiency of the flow battery are improved are solved. The electrode structure is simpler and more efficient to manufacture, large-scale production is facilitated, and the production cost is reduced.

The invention belongs to the technical field of biological medicines, and discloses an application of an intervention B cell miR-330-5p in preparation of a medicine for treating systemic lupus erythematosus (SLE), and a preparation method of the intervention B cell miR-330-5p. According to the invention, the miR-330-5p, the mimic of the miR-330-5p and the expression vector of the miR-330-5p are applied to the preparation of the medicines for preventing and / or treating the SLE and the medicines for inhibiting the activation of B cells in the SLE state. The invention provides a new intervention target for inhibiting B cell activation, and provides a new way and means for treating B cell activation mediated autoimmune diseases.

The invention relates to the field of building construction, in particular to a zero-vibration-sense and micro-vibration-velocity fine blasting construction method for an urban complex environment, which realizes high efficiency, safety and environmental protection of blasting construction through the technical means of geological investigation and environment evaluation, accurate design of blasting parameters, digital intelligent construction management, interval charging of water bags, automatic vibration velocity monitoring, wrong item damping and the like. By means of precise control over blasting energy and precise management over the construction process, blasting vibration, noise and dust are effectively controlled, and the influence on the surrounding environment is reduced. The method has the advantages that construction efficiency and quality are improved, economic benefits and social benefits are remarkably improved, and a new way is provided for safe and green development of urban underground space.

The invention discloses a pituitary adenoma invasion image data analysis method and system, and relates to the technical field of medical prediction. The pituitary adenoma invasion image data analysis system comprises an image feature extraction module, an auxiliary factor analysis module and an invasion prediction and judgment module. According to the method, image data and auxiliary biomarker data of a patient are combined, a cross attention mechanism and a feature fusion strategy are adopted for analysis, information from different data sources can be fully utilized, and the comprehensiveness and precision of pituitary adenoma invasion prediction are improved; the pituitary adenoma image is processed by using a bidirectional propagation network, so that more detailed and accurate image features can be extracted; through the pituitary adenoma invasion prediction model, in combination with the invasion data auxiliary prediction factor and the patient image feature image, high-precision invasion prediction can be performed, key features of different modalities are fused, and the accuracy and reliability of invasion prediction can be improved.

The utility model relates to an absorption device and system for activity test, and the absorption device for activity test includes: absorption device body for being connected with activity test device, absorption device body includes at least two groups of absorption unit, and the adjacent two groups of absorption units are provided with the baffle, one end of baffle is connected with the top of absorption unit, and the other end has the clearance with the bottom of absorption unit, and the adjacent two groups of absorption units are communicated through the clearance, and the gas control part is provided on every absorption unit, and the gas control part is used for controlling the gas inlet and outlet of sulfur dioxide, the utility model discloses can effectively utilize the dilute sulfuric acid produced by drying and the fuming sulfuric acid produced by absorption, realizes the sustained use of sulfuric acid, reduces the dangerous waste production, sulfuric acid is strong acid material, and there is danger, and the absorption device for activity test provided by the utility model embodiment need not frequently replace sulfuric acid, reduces the personnel operation, reduces the potential safety hazard.

This utility model relates to the field of new energy vehicle battery testing technology, and discloses a new energy vehicle battery testing device, including an operating platform, two conveyor belts, a rotating rod, and a pressure plate. The two conveyor belts are respectively located at both ends of the top of the operating platform. A support platform is fixedly connected to the top of the operating platform, and an L-shaped plate is also fixedly connected to the top of the operating platform. The rotating rod is rotatably connected inside the L-shaped plate, and a continuous conveyor plate that cooperates with the support platform is fixedly connected to its bottom. Both sides of the continuous conveyor plate have conveyor grooves, each of which cooperates with a corresponding conveyor belt. The beneficial effects of this utility model are that it ensures continuous and complete test data, significantly improves the accuracy and reliability of test results, and the continuous testing process can comprehensively evaluate the battery's performance and health status, reduce test errors, and promptly identify and eliminate potential safety hazards in the battery. This is of great significance for improving test quality, ensuring battery safety, and promoting the progress of the new energy vehicle industry.

The invention discloses a method for replacing a 10kV feed-out line protection device without power cut by depending on a section switch, which comprises the following steps of: switching on the 10kV section switch to change the operation mode of a main transformer in a station, and additionally arranging temporary overcurrent protection at the 10kV section switch, namely, calculating a temporary overcurrent protection constant value by adopting a new setting calculation principle; the main principle is that a temporary overcurrent protection constant value of an overcurrent I section is set according to 1.2 times of the maximum quick-break current in a line of a bus where 10kV replacement protection is located; the temporary overcurrent protection constant value of the overcurrent II section is set according to the maximum load current in the secondary daytime of the main transformer avoiding operation; the calculated fixed value IopI is installed in a temporary overcurrent protection device and used for replacing 10kV feed-out line protection originally, when a fault occurs on the line side, a 10kV feed-out line switch is tripped off through the temporary overcurrent protection device installed at a section switch, the fault is isolated, and therefore feed-out line protection is replaced without power failure, power failure caused to important users and resident loads is avoided, and the service life of the power supply is prolonged. Therefore, the power supply reliability of the power system is greatly improved.

The invention discloses a cooperative control method for card sliver nep impurities of a carding machine. Optimal control is achieved through linkage of three stages of source prevention, process cooperation and dynamic feedback. In the first stage, refined cotton grabbing is carried out in the opening and picking process, the weight of cotton bundles is 20-30 mg / block, and the impurity removal efficiency of a single-axial-flow cotton opener is 25%-35%; in the second stage, a licker-in and cover plate grading impurity removal system is constructed in the carding machine, the licker-in impurity removal efficiency ranges from 50% to 60%, the cover plate impurity removal efficiency ranges from 3% to 10%, the cylinder-cover plate gauge is gradually reduced from 0.25 mm to 0.15 mm, the workshop relative humidity ranges from 55% to 60%, and matched card clothing is cooperatively combined; and in the third stage, a quality sensor monitors in real time and feeds back to the central controller, and process parameters are dynamically and finely adjusted to form a closed loop. According to the method, the impurity content of card slivers is lower than 0.08%, the short fiber growth rate is lower than 3%, the total amount of nep impurities is reduced by 20% or above, the yield is increased by 2%-3%, and the adaptability of high-impurity-content raw materials is remarkably enhanced.

A multi-view finger vein image acquisition device includes a camera module, a lighting module, a driving module and a supporting module. The supporting module is provided with a rotating track. The driving module includes a motor and a rotating handle. The motor is mounted on the supporting module, and the rotating handle is mounted on the motor. The camera module and the lighting module are arranged relatively and connected to the rotating handle respectively. The camera module and the lighting module are also mounted on the rotating track respectively through pulleys. A space for placing a finger is provided between the camera module and the lighting module. The motor drives the rotating handle to rotate, and the rotating handle drives the camera module and the lighting module to rotate synchronously along the rotating track. The camera module performs multi-view photography of the finger, and the lighting module provides illumination of the corresponding viewing angle to the finger during multi-view photography. The present invention uses only a single camera to realize multi-view all-round flexible acquisition of finger veins, greatly reduces the investment cost, simplifies the equipment structure and control program, and realizes high-quality and easy-to-operate multi-view finger vein acquisition at a low cost.

The invention belongs to the technical field of biotechnology, and particularly relates to application of GAC as a target spot in enhancing treatment of chronic myelogenous leukemia by imatinib. According to the application of the GAC in preparation of a product target for preventing and / or treating the chronic myelogenous leukemia and the application of the GAC inhibitor 968 in preparation of a medicine for preventing and / or treating the chronic myelogenous leukemia, through the pharmacological effect of the GAC inhibitor 968, the GAC inhibitor 968 takes the GAC as the target in the CML, and it is prompted that the GAC inhibitor 968 can be used for treating the CML disease; gAC is taken as a target to play a role in remarkably reducing the number and proportion of bone marrow LSK cells, and further experiments find that when the GAC inhibitor 968 and a classical CML treatment medicine IM are combined for use, neutrophils in peripheral blood are also reduced to a certain extent, and the treatment effect of the GAC inhibitor 968 is enhanced, so that the CML disease progress caused by malignant proliferation of stem cells is improved.

The invention relates to the field of traditional Chinese medicines, in particular to a traditional Chinese medicine for treating pulmonary arterial hypertension, and effectively solves the problems that the western medicine for treating pulmonary arterial hypertension is limited in curative effect of symptomatic treatment and has many side effects, targeted treatment cannot fundamentally prevent the progress of a disease course and is poor in prognosis, and invasive treatment is relatively large in damage to a body, general in prognosis and high in price. According to the technical scheme, concentrated watered pills are prepared from the following raw medicinal materials by weight: 108 to 132g of astragalus membranaceus, 10 to 20g of bighead atractylodes rhizome, 27 to 33g of rhodiola rosea, 10 to 20g of trichosanthes kirilowii maxim, 27 to 33g of allium macrostemon, 10 to 20g of rhizoma pinellinae praeparata, 27 to 33g of salvia miltiorrhiza, 9 to 11g of safflower, 2.7 to 3.3 g of pseudo-ginseng, 27 to 33g of semen lepidii, 27 to 33g of white mulberry root-bark, 27 to 33g of parasitic loranthus, 45 to 55g of crude dragon bone, 45 to 55g of raw oyster shell, 54 to 66g of kudzu vine root, 45 to 55g of poria cocos, 45 to 55g of coix seed, 27 to 33g of earthworm and 9 to 11g of According to the treatment principle of tonifying qi, reducing phlegm, removing blood stasis and inducing diuresis, the traditional Chinese medicine composition can stably, durably and effectively control pulmonary arterial hypertension, improve the right heart function and control disease progression, and the life quality of patients is fundamentally improved.

The utility model discloses a boiler waste heat utilization device which comprises a horizontal flue part communicated with a boiler, an ORC power generation system communicated with the horizontal flue part through a first water circulation pipeline, and an external cooling pond communicated with the ORC power generation system through a second water circulation pipeline. According to the boiler waste heat utilization device, the guiding structure is arranged in the horizontal flue to replace an active working part, flue gas can automatically carry fly ash to fly out of the flue, heat in the flue gas can be effectively utilized, the complexity of an inner channel of the horizontal flue is reduced, and the utilization efficiency of the flue gas is improved. And the maintenance and repair cost of the product can be effectively reduced, the heat utilization effect is improved, and the development and progress of the industry are well promoted.

The invention belongs to the technical field of geological sample detection and analysis, and relates to a preparation method of a mixed additive for detecting total arsenic and total antimony in an environmental sample by an atomic fluorescence method. The preparation method comprises the following steps: adding thiourea and deionized water into a container according to a mass ratio of 1: (13-15), heating at 450-550 DEG C until the thiourea and the deionized water are completely dissolved, and rapidly stirring; then slowly adding deionized water at 8-12 DEG C while stirring; hydrochloric acid is slowly added, wherein the volume mass ratio of the hydrochloric acid to the thiourea is 10ml: 1g, and the hydrochloric acid and the thiourea are rapidly stirred while being added until the mixture is uniformly mixed; the mass ratio of the tartaric acid to the thiourea is 1: 1, and quickly stirring until the tartaric acid is dissolved; the mass ratio of the Vc ascorbic acid to the thiourea is 1: 2, and rapidly stirring until the Vc ascorbic acid is dissolved to obtain the mixed additive. The mixed additive with masking, hydrolysis resistance and acidity functions is prepared, so that the problems of low efficiency, long flow and the like in the process of measuring an environmental sample by atomic fluorescence are solved, and reagent support is provided for direct testing in a non-laboratory environment.

The invention relates to the field of artificial intelligence, in particular to a language optimization method and device for a medical image diagnosis report and a medium, and the method comprises the steps: collecting a medical image diagnosis knowledge base, employing a pre-trained recurrent neural network to be combined with the medical image diagnosis knowledge base to extract and verify the terminology in a text, and obtaining the medical image diagnosis report. And collecting a historical medical image diagnosis report and a standard template, and comparing expressions for the same diagnosis in the text and the historical medical image diagnosis report and the standard template based on the text similarity to obtain an expression inspection result. According to the method, by checking and optimizing the consistency of the grammar, the terminology and the expression, the readability, the accuracy and the normalization of the medical image diagnosis report are improved, misunderstanding and misdiagnosis caused by language problems in the report are reduced, a data basis is provided for subsequent data statistical analysis sharing, and development and progress of the medical field are facilitated.

The invention discloses a salt deposit density test insulator touch-free transfer hanging point fitting and a use method thereof, and belongs to the technical field of insulator salt deposit density test.The salt deposit density test insulator touch-free transfer hanging point fitting comprises a cross arm angle steel connecting piece and an insulator connecting piece, the insulator connecting piece comprises an insulation rope hanging plate, a bowl head and a first ball head, the bowl head is connected to the upper portion of the insulation rope hanging plate, and the first ball head is connected to the lower portion of the insulation rope hanging plate; the first ball head is connected to the lower part of the insulating rope hanging plate; and the insulator connecting piece and the cross arm angle steel connecting piece as well as the insulator connecting piece and the insulator are both of a quick disintegration hooking structure. The insulator for salt density testing does not need to touch the surface of the insulator in the transferring and hooking process, and it is guaranteed that the salt density testing process meets the requirement of the equivalent salt density standard. According to the invention, the fixing stability of the insulator string can be ensured, redundant touch of operators on the surface of the insulator is avoided, the risk early warning time is shortened, the working efficiency is improved, the operation safety coefficient is improved, and safe and stable operation of a power grid is facilitated.

The invention discloses an oil extraction pipe column integrating annulus fracturing, gas lift liquid drainage and plunger exploitation and a using method, and belongs to the field of oil and gas field fracturing transformation and production. The oil extraction pipe column comprises a plurality of oil pipes, a plurality of gas lift valves are connected with the oil pipes at preset positions to form an oil pipe column, a plunger seating device is arranged at the tail end of the oil pipe column, and a wellhead valve combination unit is arranged at the head ends of the oil pipes and a sleeve and connected with a plunger control system. The plunger control system comprises a plunger catcher, the plunger catcher is connected with the plunger, and a buffer is arranged in the seating device. Multiple operation links such as annulus fracturing, gas lift liquid drainage and plunger exploitation can be achieved, the construction risk and the well building cost are reduced, the plunger gas lift liquid drainage channel can serve as a plunger gas lift liquid drainage channel in the later stage of production, if the formation liquid amount is large, a gas lift valve can be used for auxiliary liquid drainage, the operation process is remarkably simplified, needed equipment and labor cost are reduced, and the production efficiency is improved. And the economic benefit is improved.

This invention provides a tin selenide-based nanozyme, comprising tin selenide, with tannic acid and tetravalent cerium ions conjugated on the surface of the tin selenide. The invention also provides a method for preparing the above-mentioned nanozyme, comprising mixing tin selenide with anhydrous ethanol and ultrasonically dispersing the mixture; centrifuging the resulting mixture to obtain a supernatant, further centrifuging the supernatant to obtain a tin selenide nanosheet solution; adding the above tin selenide nanosheet solution and tannic acid solution together to deionized water; subsequently adding cerium nitrate solution and continuing stirring; then adding sodium hydroxide solution to adjust the pH to 8.0; after the reaction is complete, the tin selenide-based nanozyme is obtained. This invention also provides the application of the above-mentioned tin selenide-based nanozyme in the preparation of anti-atherosclerotic drugs. The nanozyme of this invention can effectively alleviate the progression of atherosclerosis.

The invention discloses a gas turbine and light storage combined distributed new energy comprehensive allocation system, and belongs to the technical field of gas turbines.The gas turbine and light storage combined distributed new energy comprehensive allocation system comprises a gas turbine, the gas turbine internally comprises a gas compressor, a combustion chamber, a turbine and a power generator, and a photo-thermal system is connected between the gas compressor and the combustion chamber; the exhaust end of the turbine is connected with a waste heat utilization system, and the output end of the generator is connected with a power supply system. By adopting the gas turbine and light storage combined distributed new energy comprehensive allocation system, efficient, clean, flexible and economical energy supply can be realized, and wide application of renewable energy sources and transformation of energy structures are promoted.

The invention provides a water quality detection sampler with a multi-point sampling function, and belongs to the technical field of samplers, the water quality detection sampler comprises a water absorption unit and a containing unit, the water absorption unit is located in the containing unit, the water absorption unit comprises a water absorption pipe, one end of the water absorption pipe is movably connected with an adapter pipe, and the other end of the water absorption pipe is movably connected with the adapter pipe. A water suction mechanism is movably connected in the water suction pipe, two ends of the water suction pipe are respectively provided with a plug for plugging the water suction pipe, and the plugs are movably connected with the water suction pipe. The sampling device solves the problems that an existing sampling device for water quality detection is inconvenient to contain water samples obtained at multiple points in a classified mode in the stage of conducting multi-point sampling operation on water bodies in different areas and different positions of a water body in a certain area, the obtained water samples are inconvenient to carry in a unified mode when the sampling device is transferred to the water bodies in the different areas, and the workload of operators is increased.

The invention belongs to the technical field of natural language processing, and discloses a language reading understanding system based on artificial intelligence, and the system comprises a data collection module which is used for collecting language reading text data and reading understanding question data; the data processing module is used for preprocessing the collected language reading text data and reading understanding question data to obtain text feature data and understanding question feature data; answering the reading understanding question based on the text feature data to obtain a reading understanding question score; analyzing the influence of the understanding question feature data on answering the reading understanding question to obtain influence feature data; fusing the understanding question feature data, the influence feature data and the text feature data to obtain a comprehensive feature data set; the model training module is used for constructing an understanding question answer error prediction model, inputting the comprehensive feature data set into the understanding question answer error prediction model, and predicting to obtain a question solving answer error; and the learner is helped to quickly identify own defects so as to adjust a learning strategy.

The utility model belongs to the technical field of medical instruments, and relates to a pair of lateral skull base tumor clamping ear forceps which comprises a front handle (1) and a rear handle (2), the rear handle (2) is connected with the rear end of a forceps tube (3), the front handle (1) is connected with the rear end of a push rod (6), the front end of the forceps tube (3) is connected with the rear end of a forceps head (5) through a locking device (4), and the forceps head (5) comprises a fixed forceps body (51), a movable forceps body (52), a fixed forceps sheet (53) and a movable forceps sheet (54). The fixed clamp sheet (53) is fixedly connected with the front end of the fixed clamp body (51), the movable clamp sheet (54) is rotationally connected with the front end of the fixed clamp body (51) and the front end of the movable clamp body (52) through two rotating shafts respectively, and the front end of the push rod (6) is connected with the rear end of the movable clamp body (52). The multi-angle forceps head can be quickly replaced, and the opening direction of the jaw can be randomly adjusted, so that a tumor can be accurately and completely clamped, and the injury to peripheral nerves and blood vessels can be reduced to the greatest extent.

The invention belongs to the technical field of biological medicines, and discloses an application of an enteric microorganism composition in preparation of a medicine for treating systemic lupus erythematosus (SLE). In particular, the present invention relates to an enteric microbial composition comprising Lactobacillus murinus (Lactobacillus murinus) and / or Fecalibacterium rodentium (Fecalibacterium rodentium), and to a method for preparing the same. After the enteric microorganism combination is subjected to enteric microorganism transplantation of the lupus mice, the intestinal inflammatory response of the lupus mice can be improved, the expression level of autoantibodies and inflammatory factors of the lupus mice can be effectively reduced, the disease progress of the lupus mice can be remarkably improved, and a new thought and method are provided for treatment of the SLE disease.

A method of purifying a crude lithium bis(fluorosulfonyl)imide, includes adding a water removal agent to a pretreatment liquid containing the crude lithium bis(fluorosulfonyl)imide to perform a dehydration reaction at a temperature ranging from 20°C to 40°C, reacting the same for an additional 1 h to 6 h after an acid gas stops escaping from the reaction system, and filtering the reaction system to obtain a filtrate; the water removal agent is bismuth trichloride or antimony trichloride. Evaporating and concentrating the filtrate, and recrystallizing the concentrated filtrate are performed to obtain a purified lithium bis(fluorosulfonyl)imide.