背心

T恤（甲骨时代）

Sulfur recovery method and device

The invention discloses a sulfur recovery method and device, and belongs to the technical field of sulfur recovery in the coal chemical industry. According to the sulfur recovery device provided by the embodiment of the invention, an acid gas component analyzer and a ratio analyzer are arranged at the same time, the acid gas component of the ammonia-containing acid gas is analyzed through the acid gas component analyzer, the second concentration of the mixed gas in the second conveying pipeline is analyzed through the ratio analyzer, and when the acid gas component changes, the concentration of mixed gas of air and oxygen in the first conveying pipeline is adjusted in time through the first adjusting valve, and the concentration of mixed gas in the second conveying pipeline is adjusted in time through the second adjusting valve so that the sulfur recovery device keeps optimal air distribution operation, and the recovery rate of sulfur is improved.

Method and system for determining photovoltaic absorption capability of extra-high voltage direct current output power grid

The invention discloses a method and a system for determining the photovoltaic absorption capability of an extra-high voltage direct current output power grid. The method comprises the following steps: establishing a simulation model of a water-light combined extra-high voltage direct current output power transmission system and an alternating current power grid; determining Thevenin equivalent reactance for connecting the DC converter station and the AC power grid based on the simulation model, and calculating DC sending end short-circuit ratios corresponding to different Thevenin equivalent reactance; acquiring transient voltage impact amplitudes of the transmitting-end power grid under different faults, and acquiring a function relationship between the transient voltage impact amplitudes and the short-circuit ratios under the different faults based on the transient voltage impact amplitudes; calculating a short-circuit ratio contributed by a single generator set based on the short-circuit ...

DATA RECOVERY METHOD AND SYSTEM

Provided is a data recovery method, the method comprising: a), receiving the type of the to-be-recovered data selected by a user; b), detecting the capacity 1 of the same type data on the server, detecting the remaining local storage capacity 2 of the mobile terminal, and comparing capacity 1 with capacity 2, if capacity 1 exceeds capacity 2, then interrupting the recovery process, and if not, then performing step c); and c), downloading the to-be-recovered data from the server to the mobile terminal for recovery, and displaying the recovery result upon completion of the recovery. The present invention addresses mass data recovery by recovering data on a server, thus reducing the amount of calculation of a local mobile terminal and reducing resource consumption, while properly protecting important data from being lost, and being convenient and easy to use.

Single-drive intermittent electric rotary clamping jaw

The invention discloses a single-drive intermittent electric rotary clamping jaw which comprises a motor, a lead screw, an inner threaded sleeve, a planetary transmission mechanism, a clutch mechanism, a linkage mechanism and a plurality of flexible jaw fingers. The lead screw is fixed to the output end of the motor, the internal thread sleeve is in threaded connection with the lead screw, the internal thread sleeve, the linkage mechanism and the flexible claw fingers are sequentially connected, the multiple flexible claw fingers are installed at one end of the planetary transmission mechanism in an overturning mode, and the clutch mechanism is used for connecting the internal thread sleeve with the planetary transmission mechanism. By imitating the principle that a bottle cap is screwed manually, clamping and rotating are achieved only through one motor, space and economic cost are greatly saved, the problem that a mechanical arm cannot reach a workpiece in a small space is creatively ...

MAKING METHOD AND INTEGRATED SYSTEM FOR PRE-EMBEDDING FIBER GRATING SENSOR IN MAGNETIC WIRE

A making method for pre-embedding a fiber grating sensor in a magnetic wire, includes: employing a magnetic wire (9) with a slot; enabling the fiber grating sensor (2) to pass through a fiber payingoff wheel (3); and enabling the fiber grating sensor (2) and the magnetic wire (9) with the slot to enter into an oil injection device(4) and to pass through a guide device (5) together, so as to position the fiber grating sensor (2) in the slot of the magnetic wire; then carrying out insulation paper lapping and forming by a paper lapping device (6); conveying the formed product to a wire takeup device (8) through a traction device (7); finally obtaining the magnetic wire pre-embedded with the fiber grating sensor (2). An integrated system for pre-embedding a fiber grating sensor in a magnetic wire is also provided. The making method and the integrated system for pre-embedding the fiber grating sensor in the magnetic wire have the advantages of simple preparation process and excellent pre-embedding ...

In-station collaborative optimization control method of integrated energy service station and related products

The invention provides an in-station collaborative optimization control method of an integrated energy service station and a related product. Judging whether the energy supply reliability loss of the flexible load and the energy storage capacity recession corresponding to the battery energy storage are in the corresponding preset range or not based on the operation characteristic constraint of various controllable resources in the integrated energy service station and the regulation and control strategy of the flexible load and the battery energy storage; if yes, taking own demands of various controllable resources as constraints, and cooperatively responding to a superior power grid dispatching strategy of the comprehensive energy service station; and generating an in-station collaborative optimization control strategy of the comprehensive energy service station based on the superior power grid scheduling strategy and the dynamic aggregation result of the various controllable resources ...

Serial ports line on off test and line preface detection circuitry and device

... 本实用新型提供种串口线通断测试及线序检测电路及装置。本实用新型串口线通断测试及线序检测电路，包括：主电路和副电路；其中，所述主电路包括：电源、多谐振荡器、计数器、多组二极管、第串口头，第串口头包括串口公头和/或串口母头；每组二极管包括：第发光二极管和普通二极管；第串口头中的每个串口头的管脚与所述二极管的组数相同；副电路包括：多组二极管、第二串口头，第二串口头包括串口公头和/或串口母头；每组二极管包括：第发光二极管和普通二极管；每组二极管的第端分别与第二串口头中的每个串口头的对应管脚连接。本实用新型能够同时准确检测出串口线的好坏以及串口线内芯线的线序，提高了工作效率及检测准确性。 ...

Load sudden change identification method and apparatus, and electronic device

The invention discloses a load sudden change identification method and apparatus, and an electronic device. The method comprises the following steps: acquiring a photovoltaic power generation power variable quantity corresponding to a photovoltaic power generation system of a building, a wind power generation power variable quantity corresponding to a wind power generation system, a charging pile power variable quantity and a room power variable quantity in a preset time period; determining a reverse load of the building in a preset time period based on the photovoltaic power generation power variation and the wind power generation power variation; based on the charging pile power variation and the room power variation, determining a forward load of the building in a preset time period; based on the reverse load and the forward load, determining the comprehensive variable quantity of the building load; and determining a load sudden change identification result of the building according ...

Attack missile target distribution and game object matching method for attack and defense scene

The invention provides an attack missile target distribution and game object matching method of an attack and defense scene, and belongs to the field of countermeasure strategy design of a multi-aircraft attack and defense countermeasure scene. The method comprises the following steps: firstly, constructing a reachability matrix of attack bullets to a ground target, and summing the reachability matrix according to rows to search for attack bullets which are not distributed yet; the reachability matrix is summed according to columns, and the reachability matrix is updated based on the average value, distributed to each ground target, of the undistributed attack bullets until distribution of all the attack bullets is completed; and then, based on the distribution result, a game object matching result is obtained by updating a matching parameter matrix and a probability matrix of an interception bullet tracking attack bullet. According to the target distribution result, the ground target can ...

Oil-gas interface capturing method, device and equipment of engine nozzle and medium

The invention discloses an oil-gas interface capturing method, device and equipment of an engine nozzle and a medium, which are applied to the technical field of two-phase flow calculation, and the method comprises the following steps: aiming at each grid point in a non-structural tetrahedral grid corresponding to the engine nozzle, constructing a corresponding control body by taking the grid point as a center, and calculating parameter information of the control body; for each grid point, calculating the speed, the pressure and the volume fraction of the grid point at the next moment based on the parameter information of the control body corresponding to the grid point and the speed, the pressure and the volume fraction of the grid point at the current moment; judging whether the accumulation time reaches the preset calculation time or not, if not, taking the next moment as the current moment, and returning to the previous step until the accumulation time reaches the preset calculation ...

Quantization method and device for energy storage frequency support contribution and computer equipment

The invention relates to a quantification method and device for energy storage frequency support contribution and computer equipment, and the method comprises the steps: obtaining a system transfer function of inertia center frequency of a power system, building a quantification model according to the system transfer function and frequency response data of the power system, obtaining the test data of the power system, and calculating the energy storage frequency support contribution. And obtaining the frequency support contribution value of each energy storage according to the test data and the quantitative model. The quantitative model is constructed based on the earth frequency response data of the power system and the earth inertia center frequency earth system transfer function of the power system, and the test data of the power system only represents the contribution value of a single energy storage, so that the influence of other energy storage is eliminated, and the frequency support ...

Chlorin-BSH conjugate in boron neutron capture therapy and application thereof

The invention discloses a porphin-BSH conjugate in boron neutron capture therapy and application thereof, and belongs to the technical field of medicines. The porphin-BSH conjugate disclosed by the invention is subjected to coupling synthesis through an amino-substituted maleimide compound, and the method is simple; the porphin compound has the characteristics of tumor cell targeting, relatively good tumor cell uptake, safety, low toxicity and self fluorescence phenomenon of a photosensitizer, can realize targeted delivery of a second-generation boron carrying agent mercaptododecane disodium salt (BSH) to tumor cells, and can improve the content of 10B atoms in cells to different degrees compared with BSH; meanwhile, the in-vivo distribution condition of conjugates is monitored in real time by utilizing the fluorescence characteristic of porphin, so that the optimal neutron irradiation condition is formulated; the conjugate is safe and low in toxicity, and the content of 10B in cells is ...

Inverter and harmonic suppression method under different power grid intensities

The invention discloses an inverter and a harmonic suppression method under different power grid intensities. The inverter comprises a power conversion circuit and a controller, the power conversion circuit is used for converting the input direct current into alternating current and outputting the alternating current; and the controller is used for changing the lead amount of phase angle lead compensation in a repetitive control link of the inverter until THD is less than or equal to a preset threshold value when the THD of the power grid is greater than the preset threshold value, and the repetitive control link is used for performing repetitive control and phase angle lead compensation on the current instruction value of the inverter. According to the inverter, under the condition that the power grid intensity is unknown, the advance quantity adapting to the current power grid intensity is obtained by adjusting the advance quantity, so that the THD of the power grid is effectively reduced ...

Desulfurization and decarburization solvent suitable for low-pressure gas and application of desulfurization and decarburization solvent

The invention relates to a desulfurization and decarburization solvent suitable for low-pressure gas and application thereof, and relates to the technical field of environmental protection and gas purification, the desulfurization and decarburization solvent comprises a main desulfurization and decarburization component, an auxiliary desulfurization and decarburization component and water; the main desulfurization and decarburization component is an organic amine compound, and the auxiliary desulfurization and decarburization component is ionic liquid; by weight fraction, the weight percentage of the main desulfurization and decarbonization component is 20 wt%-40 wt%; and based on the weight fraction, the weight percentage of the desulfurization and decarbonization assisting component is 10wt%-20wt%. The desulfurization and decarbonization solvent provided by the invention realizes high-efficiency absorption of sulfur-containing gas and carbon dioxide at low pressure and low temperature ...

Service gateway test method and device, storage medium and product

The embodiment of the invention provides a service gateway test method and device, a storage medium and a product, and the method comprises the steps: obtaining target upstream data and target downstream data belonging to the same micro-service calling process through recording a plurality of upstream data and a plurality of downstream data of a target interface of a service gateway; judging whether network nodes related to the target upstream data and the target downstream data belonging to the same micro-service calling process are matched with the network topological graph of the target interface or not; and if yes, generating a test case of the service gateway so as to play back the target upstream data and the target downstream data when the service gateway is tested. A plurality of upstream data and a plurality of downstream data of a target interface of a service gateway are recorded by using a recording technology, the upstream data and the downstream data belonging to the same ...

Photovoltaic system, electric arc detection equipment and self-detection method

The invention discloses a photovoltaic system, arc detection equipment and a self-detection method. The photovoltaic system comprises a controlled power supply, an arc detection circuit and a power conversion circuit. The arc detection circuit comprises a current sensor chip and a processor. The primary side of the current sensor chip is connected in series with a cable, and the cable is used for connecting the photovoltaic string and the power conversion circuit; the controlled power supply is used for simulating the current output to the primary side of the current sensor chip when the electric arc exists in the photovoltaic string; the current sensor chip is used for sensing the current when the electric arc exists in the photovoltaic string and outputting an electric arc detection signal to the processor; and the processor is used for judging whether the arc detection circuit is normal according to the arc detection signal. The controlled power supply simulates the current when the ...

Dam-climbing road structure behind earth and rockfill dam and construction method of dam-climbing road structure

The invention discloses an earth and rockfill dam rear dam-climbing road structure and a construction method thereof.The earth and rockfill dam rear dam-climbing road structure comprises a dam-climbing road, the dam-climbing road is arranged on a slope of an earth and rockfill dam, an outer slope surface is arranged on the outer side of the dam-climbing road, the slope ratio of the outer slope surface is 1: 1.35-1: 2, the slope ratio of the outer slope surface is gradually changed, and the slope ratio of the outer slope surface is 1: 1.35-1: 2. And the outer slope surface and the slope of the earth and rockfill dam are in forward lap joint transition. An upper dam road is built along with rising of a dam body filling working face of the earth and rockfill dam, three-dimensional coordinates of the upper dam road are calculated, surveying and lofting are carried out, filling is carried out layer by layer according to the elevation, side slopes with two slope ratios are in forward lap joint ...

Maneuvering target tracking method based on improved Kalman filtering

The invention discloses a maneuvering target tracking method based on improved Kalman filtering, and relates to the field of digital signal processing and optimal estimation, and the method comprises the following steps: according to the physical relation among the motion characteristics of a maneuvering target, the measured value of a sensor and the state of the maneuvering target, determining the maneuvering target; constructing a state space model comprising a dynamic model of the maneuvering target and a sensor measurement model; the abnormity of the dynamic model of the maneuvering target is checked and processed; abnormal information correction is carried out on the state space model of the maneuvering target after the dynamic model abnormity is processed, and steady information is obtained; estimating and iteratively correcting a noise covariance according to the robust information; and obtaining a tracking result of the maneuvering target according to the state space model of the ...

Data recovery method and device for file system, equipment and medium

The invention provides a data recovery method and device for a file system, equipment and a medium. The method provided by the disclosure comprises: based on snapshot information of a file system, obtaining reverse incremental data indicating update information of data and/or metadata of the file system from a current moment to a previous specific moment; and based on the reverse incremental data, recovering the data in the file system to a specific moment. According to the method provided by the invention, when the data of the file system is damaged and needs to be recovered, the reverse incremental data of the file system in a certain time period can be accurately obtained only through the snapshot information of the file system, so that the data of the file system can be recovered to the previous specific time according to the reverse incremental data. The method provided by the invention has the advantages that only the updated data is subjected to recovery processing, so that the method ...

METHOD AND SYSTEM FOR DATA BACKUP

Provided is a method for data backup. The method includes: A, receiving the data type of data in need of backup selected by a user; B, calculating the capacity 1 of data the type of which is the same as the data type, and detecting the user residual capacity 2 of a server end, comparing the capacity 1 with the capacity 2, and if the capacity 1 exceeds the capacity 2, interrupting the backup process, and if it does not exceed said capacity, executing step C; and C, encrypting and uploading the data in need of backup to a database of the server end for backing up, and displaying the backup result after the backup is finished. The present invention can directly back up important data to a server end via a mobile terminal, which can not only occupy less storage space of a local mobile terminal, but can also effectively protect important data from going missing, greatly satisfying the security requirements of users.

Monoclonal antibody aiming at monkey pox virus A35 protein and application thereof

The invention discloses a monoclonal antibody aiming at monkey pox virus A35 protein and application. The monoclonal antibody disclosed by the invention comprises MPXV-mAb 975 and/or MPXV-mAb 981, and the MPXV-mAb 975 and/or the CDR1 to 3 of a heavy chain of the monoclonal antibody 975 are 'RASISSSNW', 'IFHSGST' and 'ARSQGGSGLFRAKWFDP' in sequence, and CDR1 to 3 of a light chain of the monoclonal antibody 975 are 'QSVSSSY', 'GAS' and 'QQYGSSPRT' in sequence; heavy chains CDR1 to 3 of the monoclonal antibody 981 are 'GGSISSNDY', 'IYYSGRT' and 'ARLRLGSLLHRYRAVDP' in sequence, and light chains CDR1 to 3 of the monoclonal antibody 981 are 'QRVSSTY', 'GAS' and 'QHFDSSLLT' in sequence. The monoclonal antibody can be specifically combined with the monkey pox virus A35 protein, and a new scheme and a new way are provided for detection, prevention and treatment of the monkey pox virus.

Heat preservation water conveying pipe

The utility model discloses a heat preservation water conveying pipe which comprises an outer pipe and an inner pipe arranged in the outer pipe, and a heat preservation layer is arranged in a gap between the inner wall of the outer pipe and the outer wall of the inner pipe. The outer pipe coupling is arranged at one end of the outer pipe, and the outer pipe is fixedly connected with the outer pipe coupling through a quick connector; the female connector is arranged at one end of the inner pipe, and the inner pipe and the female connector are installed in an inserted mode through the long seam allowance; the male connector is arranged at the other end of the outer pipe, and the outer pipe and the male connector are integrally formed; the sealing ring is arranged in the gap between the outer pipe coupling and the female joint, and the inner wall and the outer wall of the sealing ring are tightly attached to the outer pipe coupling and the female joint respectively. High-performance heat preservation ...

CMOS reference voltage source and design method thereof

The present disclosure provides a CMOS reference voltage source and a design method thereof, the CMOS reference voltage source can provide a reference voltage at a temperature of-40 DEG C to 170 DEG C. The CMOS reference voltage source comprises: a CTAT voltage generation unit comprising a first circuit branch and a second circuit branch for respectively generating a CTAT voltage and a bias voltage; and the PTAT voltage generation unit is used for generating PTAT compensation voltage under the action of the bias voltage so as to carry out temperature compensation on the received CTAT voltage and obtain and output reference voltage. The power consumption of the CMOS reference voltage source is nW level, and the required power supply voltage is less than 1V.

Nucleic acid extraction and purification device

The invention discloses a nucleic acid extraction and purification device which comprises a hollow first shell and a thin film located at the bottom of the first shell, a separator is arranged in the first shell, the separator and the thin film are installed in a sealed mode, a separation plate is fixedly installed above the separator, and the separator divides the lower area in the first shell into a plurality of first cavities; the partition plate abuts against the inner wall of the first shell, a plurality of openings are formed in the partition plate, a second cavity is formed above the partition plate, and the second cavity communicates with each first cavity through the openings; the nucleic acid extraction and purification device further comprises a movable ring and a magnetic part, the movable ring movably sleeves the outer wall of the first shell in the axial direction of the first shell, and the magnetic part is rotationally mounted in the movable ring around the axis of the first ...

Dust deposition detection method and device, computer equipment and storage medium

The invention relates to a dust deposition detection method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring an electrical parameter of a to-be-detected charging module in an operation process, a temperature parameter of a target acquisition position and a rotating speed of a fan within a preset range around the to-be-detected charging module; the to-be-detected charging module is a charging module in the charging pile; acquiring the conversion efficiency of the to-be-detected charging module according to the electrical parameters, and acquiring a target temperature rise value of the target acquisition position according to the temperature parameters; and according to the conversion efficiency, the target temperature rise value, the rotating speed and a preset dust deposition state detection model, obtaining dust deposition state information of the to-be-detected charging module. By adopting the method, the detection efficiency of ...

Wind and light storage micro-grid system planning method, device, equipment and medium

The invention provides a wind and light storage micro-grid system planning method, device, equipment and medium, and the method comprises the steps: building a wind and light storage micro-grid system objective function based on demand response, prediction error and wind and light storage micro-grid system cost, and enabling the objective function to achieve the maximum annual net income of the wind and light storage micro-grid system; inputting a wind-solar storage micro-grid system cost parameter, a grid tie line cost parameter and a user side load parameter into the target function; and determining a coordination strategy between the wind-light-storage micro-grid system and each user by using a gradient projection algorithm, and solving an objective function by combining a mixed integer linear programming algorithm according to the coordination strategy and constraint conditions to obtain a planning scheme of the wind-light-storage micro-grid system. In the application, the objective ...

Bridge expansion joint cleaning machine

The bridge expansion joint cleaning machine comprises a cleaning machine body, wheels and a handrail, the wheels are rotationally arranged at the bottom of the cleaning machine body, and the handrail is fixed to the top of the right side of the cleaning machine body; the wheel is connected with a rotating rod through a first belt wheel set, the front end of the rotating rod is connected to the interior of the cleaning machine body through a bearing, the front end of the rotating rod is connected with a separation rod through a second belt wheel set, and the top of a first support is fixed to the bottom of the cleaning machine body through a screw. The bridge expansion joint cleaning machine is provided with a second spring, a separating rod is jacked through the second spring, then the separating rod drives a cleaning roller to ascend and descend, the cleaning roller can be tightly attached to the interior of a bridge expansion joint all the time, and then the situation that independent ...

Motor fault diagnosis method and device based on Kalman filter

The invention relates to the technical field of motor detection, in particular to a motor fault diagnosis method and device based on a Kalman filter, and aims to solve the problem of how to improve the diagnosis reliability of a motor rotor broken bar fault. Therefore, the method provided by the invention comprises the following steps: acquiring a voltage signal and a current signal which are synchronous when the asynchronous induction motor works stably; recursive processing is carried out on the voltage signal based on an extended Kalman filter, and a real-time estimation value of the power grid fundamental frequency is obtained; based on a Kalman filter and a real-time estimation value of a power grid fundamental frequency, performing recursion processing on the current signal to obtain an estimation signal of a fundamental frequency signal in the current signal; suppressing a fundamental frequency signal in the current signal by using an estimation signal of the fundamental frequency ...

SECURING APPARATUS FOR OPTICAL FIBRE TEMPERATURE MEASUREMENT PROBE OF OIL-IMMERSED TRANSFORMER

A securing apparatus for an optical fibre temperature measurement probe of an oil-immersed transformer, comprising an insulating pad block (1) arranged between the transformer coils, a strip-shaped clamping groove hole (12) matching an optical fibre temperature measurement probe assembly (2) being arranged on the insulating pad block (1), a limiting round hole (11) having a diameter larger than that of the clamping groove hole (12) being arranged on the strip-shaped clamping groove hole (12); the optical fibre temperature measurement probe assembly (2) comprises a transmission optical fibre and an optical fibre temperature measurement probe (24) connected to the end part of the transmission optical fibre, the transmission optical fibre and the optical fibre temperature measurement probe (24) being arranged in sequence in the strip-shaped clamping groove hole (12), the part of the transmission optical fibre corresponding to the limiting round hole (11) being provided with a limiting protrusion ...

MULTI-LAYER COMPACT RECIPROCAL NON-INDUCTIVE RESISTOR

The present invention relates to the technical field of impulse voltage generators, in particular referring to a multi-layer compact reciprocal non-inductive resistor. The multi-layer compact reciprocal non-inductive resistor comprises a resistance insulating barrel and resistance wires. An inductance adjusting area is arranged at the end of the resistance insulating barrel, and resistance wire winding grooves and resistance transposition grooves are provided on the resistance insulating barrel. The resistance wires are wound in the resistance wire winding grooves and the resistance transposition grooves in a matched manner. The present invention is mainly used in a closed compact-type impacting device and is surrounded by gas having high insulating property, and therefore the spacing between resistance grooves can be very small. The resistor uses a multi-layer winding structure, fully utilizes the space of the insulating barrel, and reduces the overall length of the resistor. An insulation ...

Miniature inverter, reactive power distribution method and photovoltaic system

The invention discloses a micro inverter, a reactive power distribution method and a photovoltaic system, and the micro inverter is characterized in that the micro inverter comprises a controller, a transformer, N primary side circuits and a secondary side circuit; n is an integer greater than or equal to 2; the input ends of the N primary circuits are connected with the corresponding input capacitors, and the output ends of the N primary circuits are connected with the corresponding primary windings of the transformer; the secondary circuit is connected with a secondary winding of the transformer; the controller is used for proportionally distributing the reactive power total reference value of the micro inverter according to the reactive power output capability of each primary side circuit to obtain the reactive power output reference value of each primary side circuit; and respectively controlling each primary side circuit according to the reactive output reference value of each primary ...

Monoclonal antibody HIVmAb771 and coding gene and application thereof

The invention discloses a monoclonal antibody HIVmAb771 as well as a coding gene and application of the monoclonal antibody HIVmAb771. The monoclonal antibody HIVmAb771 disclosed by the invention is composed of a heavy chain and a light chain paired with the heavy chain; the sequences of the CDR1, the CDR2 and the CDR3 of the heavy chain are 'GYTFTFWG', 'ISPYSGNT' and 'ARDSLRAKSMTSFDL' in sequence, and the sequences of the CDR1, the CDR2 and the CDR3 of the light chain are 'QSLRNSNGDTF', 'SGS' and 'MQSLQIPRT' in sequence. The monoclonal antibody HIVmAb771 disclosed by the invention can be used for effectively neutralizing HIV-1 pseudoviruses in various subtypes/recombinant modes, and a new scheme and a new way are provided for detection, prevention and treatment of HIV-1 infection.

Method, device and system for detecting maneuvering performance of automobile clutch

The invention relates to an automobile clutch maneuvering performance detection method, which comprises the following steps of: measuring the displacement of an automobile clutch pedal by utilizing a first displacement sensor, measuring the displacement of a whole automobile by utilizing a second displacement sensor, and measuring the displacement of a clutch separation rocker arm by utilizing a third displacement sensor; and a data analysis computer is used for drawing a vehicle starting combination point curve according to the displacement of the vehicle clutch pedal and the displacement of the whole vehicle, and drawing a control system efficiency curve according to the displacement of the vehicle clutch pedal and the displacement of the clutch separation rocker arm. Due to the fact that the first displacement sensor, the second displacement sensor and the third displacement sensor are used for measuring parameters such as pedal travel, wheel cylinder travel and a starting combination ...

Method and device for generating virtual auxiliary line in augmented reality environment

The invention discloses a virtual auxiliary line generation method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring current environment information, and generating an augmented reality scene based on the current environment information; determining a target object and auxiliary line demand information in the augmented reality scene; and displaying a corresponding virtual auxiliary line on the target object based on the auxiliary line demand information. According to the method provided by the embodiment of the invention, the augmented reality scene can be automatically generated based on the environment information of the current environment, and the virtual auxiliary line is generated in the target object in the augmented reality scene by using the auxiliary line demand information and is displayed. Therefore, an effective auxiliary mode can be provided for the user under the condition of facing various use requirements of the user ...

Similarity theory-based scaling model simulation system and method for oil-immersed transformer

The invention discloses an oil-immersed transformer scaling model simulation system and method based on the similarity theory. The method comprises the steps that S1, the model of a transformer and structural parameters needed by multi-physical field analysis are determined, and the scaling model similarity ratio of physical phenomenon simulation is determined; s2, determining an eddy current field control equation adapted to the electromagnetic field of the transformer through a Maxwell equation set, and deriving an eddy current field similarity criterion based on a similarity theory; s3, determining an energy conservation similarity criterion based on an energy conservation equation; s4, determining a momentum conservation similarity criterion based on the momentum conservation equation; s5, determining a convective heat transfer similarity criterion according to convective heat transfer boundary conditions; and S6, determining a heat flow compensation principle by integrating the similarity ...

TITANIUM-CONTAINING ACTIVE MATERIAL FOR NEGATIVE ELECTRODES AND ITS PRODUCTION METHOD AND TITANIUM-CONTAINING POWER LITHIUM BATTERY

A titanium-containing active material for negative electrodes and its production method, and a titanium-containing power lithium battery. The titanium-containing active material for negative electrodes has a general formula of Li4Ti5O12/Mx, wherein Li4Ti5O12 is spinel lithium titanate, M is a doping substance selected from a metal element, metal compound, non-metal substance or non-metal compound, and 0 Подробнее

Optical storage power distribution network voltage control method and system considering battery energy storage power compensation

The embodiment of the invention provides an optical storage power distribution network voltage control method and system considering battery energy storage power compensation. The method comprises the following steps: establishing a local voltage control parameter setting optimization model of a distributed optical storage system; according to the global information of the current optical storage power distribution network, through a local voltage control parameter setting optimization model of the distributed optical storage system, control parameters of a local voltage control strategy of distributed photovoltaic and a local charging and discharging control strategy of battery energy storage are set; and based on the local voltage control strategy and the local charging and discharging control strategy after parameter setting, the node voltage of the optical storage power distribution network is controlled in combination with the intra-day real-time node voltage and the intra-day real-time ...

Power-split hybrid vehicle energy-saving method and device and storage medium

The invention relates to a power split hybrid vehicle energy saving method and device and a storage medium, a vehicle driving power demand is divided into a plurality of candidate power intervals, each candidate power interval is correspondingly provided with an engine steady-state power, and the engine steady-state power is a set constant value; vehicle wheel end demand power is obtained, a corresponding target power interval is screened out, and then target driving power corresponding to a driving motor is obtained based on the vehicle wheel end demand power and engine steady-state power corresponding to the target power interval; therefore, the engine has no instantaneous change, and the power and the oil consumption are stable in each power interval; when the instantaneous power is insufficient, the driving motor provides power, the characteristic that the driving motor responds rapidly is utilized, the engine bears the steady-state driving requirement of the vehicle, the insufficient ...

Urban distributed energy storage system

The invention provides an urban distributed energy storage system, which comprises a charging unit, an electric power storage and energy storage unit, a scheduling unit and a settlement unit, the charging unit is used for inputting electric energy to the power storage and energy storage unit and receiving redundant electric energy of a power storage and energy storage power supply; the electric power storage and energy storage unit is provided with a plurality of energy storage units of different levels, a charging and discharging control device, a metering device and a judging module, the charging and discharging control device is used for controlling charging and discharging among the energy storage units of all the levels under a dispatching instruction of the dispatching unit, and the metering device is used for metering electric energy of charging and discharging; the judgment module is used for judging the electric energy releasing and receiving capabilities of the energy storage ...

Firmware integrity verification method and system of QKD equipment based on SM3HMAC algorithm

The invention provides a firmware integrity verification method and system for quantum key distribution equipment based on an SM3HMAC algorithm. The firmware integrity verification method comprises the following steps: appointing a consistent SM3HMAC key in PC end computing software and a security chip; the equipment firmware is processed by the PC end, so that an SM3HMAC processing result is obtained and preset to the security chip; the device firmware is calculated through the quantum key distribution device, so that a firmware SM3HMAC calculation result is obtained and returned to the firmware verification software; and comparing the SM3HMAC calculation result of the firmware with the preset value of the security chip by using the firmware verification software so as to obtain quantum key distribution starting data. Compared with the prior art, the method has the advantages that the risk that the device firmware is tampered in the QKD device is avoided through the method of combining ...

Optical storage multi-machine parallel off-grid control method and device

The invention provides an optical storage multi-machine parallel off-grid control method and device, and the method comprises the steps: judging whether the load power exceeds a droop control power range or not under the condition of off-grid operation, carrying out the smooth compensation of a reference power value through a trigger regulator if the load power exceeds the droop control power range, and carrying out the smooth compensation of the reference power value on the premise of not changing the load capacity. According to the method, the droop response speed is improved, the problem of uncontrollable power caused by overshoot amplitude limiting of the load power is solved within the overload controllable range, compared with a multi-section droop control switching mode, the load frequency is smoother in the switching period, the problem of frequency abrupt change caused by sudden increase and sudden decrease of the load power is solved, and the stability of frequency control is ...

Tobacco monopoly retail license self-service application printing terminal and method

The invention discloses a tobacco monopoly retail license self-service application printing terminal and method, belongs to the technical field of electronic self-service machines, and aims to solve the technical problems that the existing tobacco monopoly retail license new service is relatively long in single handling time and relatively low in efficiency, a user queues and gathers when handling the service, and the service handling experience is relatively poor. According to the technical scheme, the printing terminal comprises a living body detection module, a certificate reading module, a person-certificate integrated identity verification module, an information input module, an information display module, a signature board module, an information storage module, a wireless transmission module and a printing module. The method specifically comprises the following steps: information acquisition and information comparison; selecting a tobacco monopoly retail license delivery mode; generating ...

METHOD FOR INDUCING THE TRANSDIFFERENTIATION OF SOMATIC CELLS INTO NEURAL STEM CELLS AND APPLICATION FOR SAME

Provided are a method for inducing the transdifferentiation of somatic cells into neural stem cells and application for same. Using a combination of a histone deacetylase (HDAC) inhibitor, a glycogen synthase kinase (GSK-3) inhibitor, and a transforming growth factor β (TGF-β) signal pathway inhibitor, in a low-oxygen normal physiological environment, induce somatic cells such as fibroblasts and epithelial cells to form into neural stem cells having good pluripotency and passage stability.

Method and system for determining comprehensive short-circuit ratio

The invention discloses a method and a system for determining a comprehensive short-circuit ratio. The method comprises the following steps: determining reactive power absorbed by a transmitting-end converter; determining the reactive power of the AC main network fed into the commutation bus; determining reactive power of a photovoltaic power generation alternating current collection line feed-in sending end conversion bus; according to the reactive power absorbed by the transmitting-end converter, the reactive power fed into the conversion bus by the AC main network and the reactive power fed into the transmitting-end conversion bus by the photovoltaic power generation AC collection line, determining the capacity of reactive compensation equipment needing to be input into the transmitting-end converter station, and deriving the capacity of the reactive compensation equipment; deforming the derivation formula according to the effective short-circuit ratio, and determining an improved effective ...

Large-aperture array antenna subarray structure adjusting method oriented to electrical performance

The invention discloses a large-aperture array antenna subarray structure adjustment method oriented to electrical performance. The method comprises the following steps: S1, determining the maximum gain loss; s2, establishing a sensitivity distribution matrix; s3, calculating a position tolerance distribution weight; s4, giving an initial installation tolerance standard; s5, calculating a position tolerance distribution matrix; s6, generating a position error random sample; s7, calculating the electrical performance of the antenna; s8, judging whether the position error random sample meets the requirement or not; s9, calculating a new position tolerance standard; s10, solving the maximum allowable structure adjustment amount; according to the method, the adjustment amount of the sub-array structures of different areas of the large-aperture array antenna can be quantitatively given by taking the electrical performance of the antenna as a target, so that the precision requirement of the sub-array ...

Rate gyroscope adaptive weighting method and device based on Fourier transform

The invention provides a rate gyroscope adaptive weighting method and device based on Fourier transform, and belongs to the field of heavy carrier rocket attitude control. The method comprises the steps that a carrier rocket attitude dynamics model is established, and the front portion and the rear portion of a carrier rocket are each provided with a rate gyroscope; based on the kinetic model, constructing a weight estimation model of rate gyroscope weighting; and based on the rate gyroscope weighted weight estimation model, estimating the weight by using Fourier transform to obtain a rigid body signal estimation result of the carrier rocket. According to the method, the weight is adaptively estimated from the angle of the frequency domain, the method has the remarkable advantages of accuracy and reliability, the capacity of continuously correcting the weight is still achieved when the power of the rigid body signal and the elastic signal is low, and the method can be widely applied to ...

Grate, grate cooler module and grate cooler

... 本实用新型公开了一种篦板、篦冷机模块及篦冷机，其中，篦板包括密封板，所述密封板的一端连接有过渡板，密封板的另一端连接有滑动板，所述滑动板上还连接有推料板，所述推料板和过渡板之间设置有若干个冷却板；由密封板、滑动板、若干个冷却板、推料板以及过渡板封闭连接形成风腔；所述滑动板上开设有进风口；相邻冷却板之间的缝隙形成出风通道，围成出风通道的相邻冷却板的外表面相互平行。本实用新型的篦板优化了篦冷机空气流场，加强了气固换热，达到了节能减排的目的。 ...

Method for carrying out calcium treatment on non-oriented electrical steel by using silicon-calcium alloy

The invention relates to the technical field of metallurgy continuous casting, in particular to a method for conducting calcium treatment on non-oriented electrical steel through silicon-calcium alloy. The method comprises the following steps: smelting molten steel in a converter to enable the molten steel to meet set component requirements, and then refining; the refined molten steel is decarburized, so that the decarburized molten steel reaches the deoxidation oxygen activity and the target carbon content; alloying the decarburized molten steel through a metal alloy; and performing calcium treatment on the alloyed molten steel by controlling the chemical components of the silicon-calcium-barium alloy and the adding amount of the silicon-calcium-barium alloy, so that the calcium-treated molten steel reaches the target calcium content. The technical problem that in an existing non-oriented electrical steel calcium treatment process, the calcium absorption rate is low is solved. According ...

Converter transformer partial discharge ultrasonic detection positioning device

According to the technical scheme, the converter transformer partial discharge ultrasonic detection positioning device comprises four ultrasonic detection probes and a data analysis terminal; the four ultrasonic detection probes are respectively communicated with the data analysis terminal; wherein the four ultrasonic detection probes are arranged on the outer side of an oil tank of the converter transformer, and connecting lines of relative positions of the four ultrasonic detection probes form a rectangular coordinate system; the four ultrasonic detection probes are used for receiving partial discharge signals generated in the converter transformer; and the data analysis terminal is used for receiving the partial discharge signals fed back by the ultrasonic detection probes and calculating the partial discharge position in the converter transformer according to the relative positions of the four ultrasonic detection probes and the partial discharge signals fed back by the ultrasonic detection ...

GIS flange UHF online monitoring system and method based on wireless communication

The invention discloses a GIS flange UHF online monitoring system and method based on wireless communication, and the system comprises a GIS flange housing, an ultrahigh frequency partial discharge sensor, an ultrahigh frequency signal processing module, an SF6 gas leakage online monitoring alarm module, a wireless transmitting module, a data aggregation device, and a main control computer terminal. The method comprises the following steps: acquiring an ultrahigh-frequency partial discharge signal generated by partial discharge in the GIS, monitoring an SF6 concentration signal in a gas cavity, and starting an SF6 alarm unit to give an alarm when a monitored value of the SF6 concentration signal exceeds a safety threshold value; and the main control computer terminal receives and displays the ultrahigh frequency partial discharge signal and the SF6 concentration signal, and simultaneously sends a signal instruction to control the dormancy and start of the ultrahigh frequency signal processing ...

Human-computer interaction method, device and equipment and storage medium

The invention provides a man-machine interaction method and device, equipment and a storage medium. The method comprises the following steps: determining a virtual ray emitted from a virtual space; and in response to a drop point adjustment instruction of the virtual ray, adjusting the drop point depth of the virtual ray in the virtual space, so that the drop point of the virtual ray is presented on any virtual object in the pointing direction of the virtual ray. According to the embodiment of the invention, the drop point of the virtual ray can be presented on any virtual object in the pointing direction of the virtual ray by adjusting the drop point depth of the virtual ray in the virtual space, so that the convenient interaction of any virtual object through the virtual ray is realized, and the interaction comprehensiveness of the virtual object in the virtual space is ensured. Moreover, any virtual object to be interacted is selected by adjusting the drop point depth of the virtual ...

Sound processing method and device, equipment, storage medium and program product

The invention provides a sound processing method and apparatus, a device, a storage medium and a program product. The method comprises the steps of obtaining an environment map around a user; in response to the acquired voice audio data, determining a target object of the user; and determining the sound source position of the target object based on the environment map, tracking the target voice at the sound source position, and performing corresponding processing on the target voice. According to the invention, when the voice audio is obtained, the target object interacting with the current user is determined in combination with the environment map, and then the sound source position of the target object is determined, so that the voice at the sound source position is tracked, and the tracked target voice is correspondingly processed. Therefore, the corresponding special effect is accurately set for the voice of the interaction object, so that the user can simply distinguish the voice of ...

Aircraft no-fly zone online avoidance system based on deep reinforcement learning

The invention discloses an aircraft no-fly zone online avoidance system based on deep reinforcement learning. The system comprises an aircraft waypoint online decision-making module, a heeling angle intelligent decision-making environment module and an aircraft trajectory intelligent generation module. The aircraft waypoint online decision-making module is used for quickly generating a two-dimensional incremental real-time map model; waypoints for guiding the aircraft to avoid the no-fly zone are quickly generated in real time through an intelligent search algorithm; the intelligent heeling angle decision-making environment module is used for optimizing an aircraft heeling angle decision-making model in an offline simulation mode; and the aircraft trajectory intelligent generation module is used for outputting the real-time optimal heeling angle of the aircraft according to the real-time position information, the real-time situation information and the no-fly zone situation information ...

Thin-gauge efficient non-oriented electrical steel and preparation method and application thereof

The invention relates to thin-gauge efficient non-oriented electrical steel and a preparation method and application thereof, and belongs to the technical field of steel preparation. The electrical steel comprises the following chemical components in percentage by mass: 1.0%-2.4% of Si, 0.1%-0.8% of Mn, less than or equal to 0.003% of S, 0.2%-1.0% of Al, 0.01%-0.2% of Sn or Sb and the balance of Fe and inevitable impurities. By controlling the content of the components of the electrical steel, such as Si, Mn, Al, Sn or Sb elements, the electromagnetic performance is improved, so that the electrical steel can have lower iron loss, the iron loss P1.5/50 is less than or equal to 3.0 W/kg and better magnetic induction performance, the magnetic induction strength B5000 is greater than or equal to 1.70 T without performing hot-rolled coil normalizing or other heat treatment processes during preparation, and on the premise that the performance requirement of the electrical steel is met, the electrical ...

Control method and device of grid-connected inverter

The invention provides a control method and device for a grid-connected inverter. The method comprises the following steps: acquiring a current reference control current and a grid-connected voltage of the grid-connected inverter; determining a compensation current based on the grid-connected voltage, the current closed-loop transfer function information of the grid-connected inverter and the closed-loop output admittance information of the grid-connected inverter; generating a current instruction of the grid-connected inverter according to the compensation current and the reference control current; and controlling the grid-connected inverter through the current instruction to obtain an output current. By applying the method provided by the embodiment of the invention, the reference control current is compensated through the compensation current, the current instruction is generated, and then the output current is obtained through the current instruction, so that the current generated based ...

Natural gas takes off hydrocarbon device

... 本实用新型公开了种天然气脱蜡脱水脱烃装置，包括依次连接的原料气预冷器、原料气分离器、原料气后冷器、制冷设施、低温分离器和醇烃液注入泵。本实用新型的积极效果是：有效地利用低温醇烃液改变天然气组成，经预冷后分离脱除原料气中的石蜡组分，再经原料气后冷器和制冷设施降温分离后脱除原料气中的水和重烃。本实用新型可以避免降温过程中由于石蜡造成堵塞的情况，并且可以进步降低分离温度，降低水合物抑制剂的注入量，有效地减少操作费用，提高天然气低温分离效率。 ...

Inverter grid-connected resonance detection method and device, electronic equipment and storage medium

The invention provides an inverter grid-connected resonance detection method and device, electronic equipment and a storage medium, and the method comprises the steps: analyzing a grid-connected signal, extracting a characteristic signal which can represent whether the inverter grid-connected resonance occurs or not, and judging whether the inverter grid-connected resonance occurs or not according to the characteristic signal, in the whole process, grid-connected current disturbance and the like do not exist, and the grid-connected resonance of the inverter is accurately detected while the quality of the grid-connected current is not influenced.

Application of isoorientin compound

The invention discloses application of an isoorientin compound, and particularly relates to application of the isoorientin compound in preparation of a medicine for preventing and treating tobacco mosaic virus. The isoorientin not only can obviously inhibit the primary infection of the TMV to the host, but also has a certain passivation effect on the TMV, so that the chance that the virus enters host cells and is further copied and proliferated is reduced, and the host is protected. The prevention and protection effect of the isoorientin on TMV infection is superior to that of the commercially available antiviral pesticide ningnanmycin. The isoorientin medicinal preparation disclosed by the invention is derived from medicinal plants, is environment-friendly, meets the green and environment-friendly requirements of agricultural production, has a relatively good effect on preventing and treating the tobacco mosaic virus disease, and can be used for preparing a medicinal preparation for preventing ...

Method and device for determining energy storage capacity of power system and computer equipment

The invention relates to an energy storage capacity determination method and device of a power system and computer equipment. The method comprises the following steps: acquiring a first parameter including equivalent inertia, equivalent damping, disturbance size and a frequency safety boundary value of the power system, determining a target calculation mode required for calculating the energy storage capacity, determining a second parameter of the power system corresponding to the target calculation mode, and calculating the energy storage capacity of the power system according to the first parameter and the second parameter. And determining the energy storage capacity of the power system by using an energy storage capacity estimation method corresponding to the target calculation mode. Wherein the target calculation mode comprises a first mode and a second mode, the second parameter corresponding to the first mode comprises primary frequency modulation droop strength and a primary frequency ...

SVG (Static Var Generator) control method and system for reducing centralized photovoltaic off-network threat

The invention discloses an SVG (Static Var Generator) control method and system for reducing a centralized photovoltaic off-network threat. The SVG control method comprises the following steps: constructing an SVG transient simulation model for reducing the centralized photovoltaic off-network threat; according to the SVG transient value model, an SVG voltage reactive power transient trajectory is obtained, and the features of the SVG voltage reactive power transient trajectory are obtained by analyzing the SVG voltage reactive power transient trajectory; and determining an SVG control strategy for reducing the centralized photovoltaic off-network threat according to the control target of the photovoltaic access node on the power grid voltage after the fault and the characteristics of the SVG voltage reactive transient trajectory. The problem that the safety of centralized photovoltaic off-network is threatened due to the increase of the power grid voltage is solved.

Multi -factor structure high -tension bushing performance examination testing platform

... 本实用新型涉及输变电高压绝缘测试技术领域，特指一种多元结构高压套管性能考核检测平台，其采用变压器油纸套管、干式套管和油气套管形成一个闭合回路，通过高压电源模拟运行工况电压作用于套管回路中，通过大电流装置模拟运行工况负荷电流作用于套管回路中，形成一套检测试验平台，可对近工况条件下多种结构套管的绝缘状态同时开展在线监测和离线测试，并可开展近工况条件下浸入式套管热稳定试验。 ...

Miniature inverter, high-frequency transformer leakage inductance correction method and photovoltaic system

The invention discloses a miniature inverter, a high-frequency transformer leakage inductance correction method and a photovoltaic system, the miniature inverter comprises a controller, N primary side circuits and one secondary side circuit, and N is an integer greater than or equal to 2; each primary side circuit is connected with a corresponding primary side winding, and each secondary side circuit is connected with a corresponding secondary side winding; the controller is used for obtaining a power difference value between the input power and the average power of the nth primary side circuit, and the nth primary side circuit is any one of the Nth primary side circuits; when the power difference value is greater than a preset threshold value, the leakage inductance of the nth primary side circuit is corrected; the average power is obtained by the reference current and the grid voltage effective value. According to the scheme, the error detection of each path of leakage inductance can ...

Comprehensive evaluation method and device for performance of battery energy storage system and computer equipment

The invention discloses a battery energy storage system performance comprehensive evaluation method and device and computer equipment, and the method comprises the steps: carrying out the comprehensive evaluation of the performance of a battery energy storage system based on a battery energy storage system capacity attenuation function, a daily operation cost total objective function, and a power balance constraint condition, an energy storage power constraint condition and a control strategy constraint condition of a linearized battery energy storage system (BESS); according to the method, comprehensive evaluation values of multiple different physical performance indexes of the BESS are calculated by utilizing a group sequence relation evaluation algorithm, and the comprehensive evaluation values of the multiple different physical performance indexes of the BESS can be calculated on the basis of control strategy constraint conditions under multiple different scheduling scenes of combining ...

Direct-drive electricity supplement control method, device and equipment for hybrid electric vehicle and medium

The invention discloses a direct-drive electricity supplement control method, device and equipment for a hybrid electric vehicle and a medium. After the vehicle enters an engine direct drive mode, whether a drive motor is started to charge a storage battery or not is determined according to the electric quantity of the storage battery of the vehicle; according to the maximum output power of the engine, the maximum generated power of the driving motor and engine power needed for maintaining normal running of the vehicle, the target generated power of the driving motor and the target output power of the engine when the storage battery is charged are determined; and the output torque of the driving motor is determined according to the target generated power, and the output torque of the engine is determined according to the target output power. After the vehicle enters the engine direct driving mode, the storage battery is charged in time when the electric quantity of the storage battery is ...

Additional damping method for improving power angle stability of voltage source type energy storage system

The invention discloses an additional damping method for improving the power angle stability of a voltage source type energy storage system. According to the method, an additional damping link in an active frequency control loop is introduced; because the virtual angular frequency of the inverter is consistent with the angular frequency of the power grid during stable operation, the method does not change the steady-state characteristic of the system; an additional damping link is introduced to increase the damping ratio of the system and reduce power angle overshoot during a fault period, so that the power angle stability of the system is improved; the maximum frequency change during the fault period can be reduced by increasing the additional damping gain K1, and the maximum frequency change rate at the fault moment is not changed, so that the frequency stability of the system is improved. The method is suitable for various PWM-controlled three-phase inversion devices composed of various ...

Physical feature determination method, motion mode determination method and related equipment

The invention provides a physical feature determination method, a motion mode determination method and related equipment. The physical feature determination method comprises the following steps: acquiring real environment information, and constructing a three-dimensional model of a real environment based on the real environment information; determining physical characteristics of an environment surface according to the real environment information; and marking the three-dimensional model by using the physical characteristics to obtain a marked three-dimensional model. Therefore, the physical characteristics of the environment surface are determined according to the real environment information, and the physical characteristics are marked in the three-dimensional model to obtain the marked three-dimensional model, so that the physical characteristics of the three-dimensional model of the real environment can be accurately determined, physical interaction based on the physical characteristics ...

Preparation method of 2-amino-2-thiazoline

The invention discloses a preparation method of 2-amino-2-thiazoline, and belongs to the technical field of organic synthesis, the preparation method comprises the following steps: addition reaction: chlorination addition reaction; the chlorination addition reaction comprises the following steps: adding a reaction mother solution, thionyl chloride and N, N-dimethylformamide into a reaction kettle, heating to reflux, keeping the temperature for 3-5 hours, then adding purified water, adjusting the pH to 7 by using a sodium hydroxide aqueous solution, stirring, extracting, evaporating to dryness, recovering a solvent, and drying to obtain 2-amino-2-thiazoline; the method has the advantages of no need of additional addition of acid for catalysis, single reaction solvent, low boiling point of the solvent, facilitation of solvent recovery, cost reduction, strong reaction selectivity, low-price and environment-friendly raw materials, reduction of the generation of waste ammonium salt, strong economical ...

Method for improving quality of cultivated baical skullcap root medicinal material based on water ecological regulation and control measures

The invention discloses a method for improving the quality of a cultivated radix scutellariae medicinal material based on a moisture ecological regulation measure, belongs to the field of ecological planting of traditional Chinese medicinal materials, and solves the problems of germplasm degradation and unstable quality of radix scutellariae in the prior art. The method comprises the following steps: after the scutellaria baicalensis is sown, the scutellaria baicalensis naturally grows according to conventional daily management; the method comprises the following steps: measuring the saturated water content of scutellaria baicalensis cultivation soil, and classifying the moisture environment of scutellaria baicalensis into normal moisture, mild drought, moderate drought and severe drought according to the water content of the soil; in September to October of the next year, moisture of soil for cultivating scutellaria baicalensis is monitored, when the moisture content of the soil reaches ...

Low voltage ride through method and system adopting adaptive crowbar circuit

The invention provides a low-voltage ride-through method and system adopting a self-adaptive crowbar circuit, and the method comprises the steps: inputting a parallel crowbar according to a preset crowbar setting value when a power grid breaks down and the rotor current is greater than a current limit value, and locking a rotor-side converter; calculating a crowbar adjustment value, and inputting the crowbar adjustment value when the DC bus voltage after the fault is not less than the DC bus voltage out-of-limit value, or the DC bus voltage after the fault is less than the DC bus voltage out-of-limit value, and the fault time is greater than a set delay value; and when the direct current bus voltage is smaller than the direct current bus voltage over-limit value and the rotor current is smaller than the current limit value, the parallel crowbar is cut off, and the rotor side converter is unlocked. According to the method and the system, the resistance value of the parallel crowbar structure ...

High-voltage electrical architecture of hybrid electric vehicle

The invention discloses a high-voltage electrical framework of a hybrid electric vehicle. The high-voltage electrical framework comprises a charging socket, a low-voltage storage battery, a hybrid power assembly, a motor controller, a high-voltage power battery, a vehicle control unit, a charging switch relay, a charging wake-up relay and an ON-gear wake-up relay, the charging socket is connected with a charging switch relay, a charging wake-up relay, a low-voltage storage battery and a high-voltage power battery; the low-voltage storage battery is connected with a charging switch relay, a charging wake-up relay and an ON-gear wake-up relay; the hybrid power assembly is connected with a low-voltage storage battery and a motor controller; the motor controller is connected with the high-voltage power battery; the whole vehicle controller is connected with the charging switch relay, the charging wake-up relay, the ON gear wake-up relay, the high-voltage power battery and the motor controller ...

Video processing method and device, equipment and medium

The invention relates to a video processing method and device, equipment and a medium. The method comprises the following steps: acquiring an original video and a to-be-replaced first video; when a video preview instruction is obtained, taking the first video as the current video, and executing the following video processing operations: playing the original video and the current video, and comparing whether the duration of the current video is equal to the preset editing time in the original video or not in the playing process; if not, editing the current video according to the comparison result to obtain a new current video; executing at least one video processing operation until the duration of the new current video is equal to the editing time, and determining the new current video as a second video; and performing video synthesis according to the second video and the original video to obtain a target video. According to the invention, the adaptability of the original video and the current ...

Box-type substation with multiple protection structures

The invention is applicable to the technical field of transformer substations, and provides a box-type transformer substation with a multi-protection structure, which comprises a transformer substation main body, a high-voltage chamber, a low-voltage chamber and a transformer chamber are arranged in the transformer substation main body, and a high-voltage chamber door, a low-voltage chamber door and a transformer chamber door are respectively mounted on the high-voltage chamber, the low-voltage chamber and the transformer chamber in a matched manner; a ventilation assembly is mounted on the transformer substation main body; a heat dissipation assembly is arranged between the high-voltage chamber and the transformer chamber, and a heat dissipation assembly is arranged between the low-voltage chamber and the transformer chamber; a top protection assembly is installed at the top of the transformer substation body and used for shielding the transformer substation body and limiting opening of ...

Airworthiness induction design method, system and equipment for undercarriage shock absorber and medium

The invention discloses an undercarriage shock absorber airworthiness induction design method, system and equipment and a medium, and relates to the technical field of shock absorbers. The method comprises the following steps: determining airworthiness requirements of the shock absorber; shock absorber external load calculation is carried out according to airworthiness requirements and preset operation environment working conditions, and shock absorption mode related data are determined; the vibration reduction mode related data comprises vibration reduction data and vibration reduction parts; constructing a shock absorber three-dimensional entity model according to the shock absorption mode related data; the shock absorber three-dimensional entity model comprises an expansion layer and an application layer which are connected in sequence; the expansion layer is used for storing an identifier index corresponding to the damping mode related data; the application layer is used for updating ...

Method and device for service quality control, equipment and medium

The invention provides a service quality control method and device, equipment and a medium. The method comprises the steps of receiving a file processing request; in response to the received file processing request, only applying for a token for file processing from a directory where a to-be-processed file is located; and if the token is obtained, processing the file. According to the method provided by the invention, the to-be-processed file can be processed only by obtaining the token of the directory where the to-be-processed file is located, so that the method provided by the invention can improve the reading and/or writing operation speed of a system, and ensures that all reading or writing operations in the system can be responded in time; and the overall operation efficiency of the file system is high.

Automatic voltage control method and system suitable for transformer substation

The invention discloses an automatic voltage control method and system suitable for a transformer substation, and belongs to the technical field of automatic voltage control. The method comprises the following steps: setting a data acquisition period of an automatic voltage control system of the transformer substation and a control period of automatic voltage; when the data acquisition cycle of the transformer substation arrives, reading the bus voltage of the transformer substation; and when the control cycle of the transformer substation arrives, judging whether the bus voltage is out of limit, if so, determining an out-of-limit elimination strategy, and eliminating the voltage out-of-limit through the out-of-limit strategy. The method can ensure that the equipment acts in time to eliminate voltage out-of-limit when the equipment is out-of-limit, can effectively reduce the action times of the voltage regulation equipment in the transformer substation, prolongs the action interval of the ...

High-safety intelligent detection device for lifting capacity of load-free crane

The invention relates to the technical field of crane detection, and discloses a high-safety intelligent detection device for the lifting capacity of a load-free crane, which comprises a mounting frame, a bearing beam is fixedly mounted at the top of the mounting frame, a crane is fixedly mounted in the bearing beam, and a lifting hook is fixedly mounted at the bottom of the crane. According to the high-safety intelligent detection device for the lifting capacity of the load-free crane, a limiting plate is mounted below two limiting cross beams, an empty groove is formed in the limiting plate and used for allowing a connecting rod to penetrate through, and meanwhile the part, penetrating through the empty groove, of the connecting rod is in threaded connection with an inner barrel; the outer cylinder body is inserted into the outer part of the inner cylinder body and is connected with the outer cylinder body and the inner cylinder body in a penetrating manner through the pressure-bearing ...

Positive electrode material, preparation method thereof and lithium ion battery

The invention discloses a positive electrode material which comprises a positive electrode material substrate, the chemical general formula of the positive electrode material substrate is LiaNixCoyO2, a is greater than 0.9, x is greater than or equal to 0.95, y is less than or equal to 0.05, and x + y = 1; the coating layer comprises a first coating layer existing on the surface of the positive electrode material base body, a second coating layer existing on the surface of the first coating layer and a third coating layer existing on the surface of the second coating layer, the first coating layer comprises amphoteric metal oxide, the second coating layer comprises metal fluoride, and the third coating layer comprises metal fluoride. And the third coating layer comprises lithium fluoride, aluminum oxide and aluminum fluoride. According to the positive electrode material and the preparation method thereof, the rate capability and the cycling stability of the lithium ion battery can be effectively ...

Distributed energy control system and method

The invention discloses a distributed energy control system and method. The distributed energy control system comprises a server, data acquisition equipment and a photovoltaic inverter connected with a photovoltaic module. And the server is used for sending the first data packet and the second data packet to the data acquisition equipment through the first channel and the second channel respectively. The first channel is a channel for data transmission through a first communication technology, and the second channel is a channel for data transmission through a second communication technology. The first data packet and the second data packet each include a portion of the control information. And the data acquisition equipment is used for determining control information according to the first data packet and the second data packet, and sending the control information to the photovoltaic inverter. And the photovoltaic inverter is used for controlling the working state of the photovoltaic module ...

Method and device for determining difference of standard terms of power grid equipment and electronic equipment

The invention discloses a method and device for determining the difference of standard terms of power grid equipment and electronic equipment. The method comprises the following steps: performing triple extraction on a plurality of pre-acquired power grid equipment standard terms to obtain a plurality of triple extraction results corresponding to the plurality of power grid equipment standard terms, the plurality of power grid equipment standard terms and the plurality of triple extraction results having a one-to-one correspondence relationship; performing clustering processing on entities included in the plurality of triple extraction results to obtain an entity clustering result; based on the multiple triple extraction results and the entity clustering results, constructing a knowledge graph; and determining a difference analysis result among the plurality of power grid equipment standard terms based on the knowledge graph. The technical problems of low analysis efficiency, poor accuracy ...

Low-temperature methanol washing waste liquid collecting device and low-temperature methanol washing waste liquid collecting method

The invention provides a low-temperature methanol washing waste liquid collecting device and a low-temperature methanol washing waste liquid collecting method. The low-temperature methanol washing waste liquid collecting device comprises an underground collecting tank; the outlet pressure pipeline is communicated with an outlet of the underground collecting tank and is used for conveying the gas in the underground collecting tank to a torch to be emptied; the induced draft fan is arranged on the outlet pressure pipeline and drives the gas in the underground collecting tank to be discharged and conveyed to the torch through the outlet pressure pipeline; the low-pressure stamping pipeline is communicated with the underground collecting tank and can be used for stamping low pressure into the underground collecting tank; the collecting funnel is communicated with the underground collecting tank, and the methanol waste liquid is collected to the underground collecting tank by the collecting ...

Voltage source type energy storage wide-frequency-band negative resistance characteristic analysis method based on impedance splitting

The invention discloses a voltage source type energy storage wide-frequency-band negative resistance characteristic analysis method based on impedance splitting, and the method is simplified based on a voltage source type energy storage impedance model, and analyzes the impedance characteristic of the simplified model in a wide-frequency-band range. Impedance frequency band division is carried out according to the characteristics of the voltage source type energy storage controller and the wide-frequency-band impedance characteristics, and a medium-frequency-band negative resistance source is analyzed by using an impedance splitting method, so that a voltage source type energy storage instability risk positioning method is perfected, and reference is provided for improving the stability of voltage source type energy storage small signals.

Centralized photovoltaic access capability determination method and system considering short-circuit capacity constraint

The invention discloses a centralized photovoltaic access capability determination method and system considering short-circuit capacity constraint. The method comprises the steps of 1, building a first simulation model of each photovoltaic power station and a grid-connected system based on a planning scheme; step 2, determining a photovoltaic maximum accessible capacity original value of the centralized grid-connected point under the planning scheme based on the current first simulation model; step 3, modifying each photovoltaic power station into an access mode that the photovoltaic power stations are connected in series first and then connected in parallel to determine a photovoltaic grid-connected optimization scheme, and updating the current first model based on the photovoltaic grid-connected optimization scheme to establish a second simulation model of each photovoltaic power station and the grid-connected system; 4, based on the current second simulation model, determining a photovoltaic ...

Image clustering method and device, electronic equipment and storage medium

The invention discloses an image clustering method and device, electronic equipment and a storage medium, and belongs to the field of image processing. The method comprises the following steps: respectively carrying out face feature analysis and human body feature analysis on at least two figure images, and determining face feature information of each figure image, and face quality information and human body feature information corresponding to the face feature information; on the basis of the face feature information, the face quality information and the human body feature information, or the face feature information and the face quality information, the portrait similarity between every two figure images in the figure images is determined; and carrying out image clustering on the figure images based on the portrait similarity to obtain at least one figure image set.

Self-adaptive asynchronous induction motor slip ratio estimation method, device, equipment and medium

The invention relates to the technical field of motor detection, in particular to a self-adaptive asynchronous induction motor slip rate estimation method, device and equipment and a medium, and aims to solve the problem of how to improve the reliability of motor slip rate estimation. Therefore, the method provided by the invention comprises the following steps: carrying out adaptive filtering on a collected current time domain signal to obtain a current time domain signal of which a power frequency signal is filtered; performing fast Fourier transform on the current time-domain signal of which the power frequency signal is filtered out to obtain a frequency spectrum of the current time-domain signal; selecting a frequency point with the maximum amplitude in a first preset sequence number range and a second preset sequence number range in the frequency spectrum to obtain the frequency of a side frequency signal corresponding to the selected frequency point; and obtaining the slip rate estimated ...

Heterogeneous functionalized catalyst as well as preparation method and application thereof

The invention discloses a heterogeneous functionalized catalyst which comprises lipase, ZIF-8 for embedding the lipase and histidine, and the ZIF-8 comprises zinc ions and 2-methylimidazole which are coordinated with each other; the histidine is coordinated with zinc ions on a ZIF-8 framework. The invention also discloses a preparation method of the heterogeneous functionalized catalyst. The invention also discloses an application of the heterogeneous functionalized catalyst in enantioselective asymmetric catalysis and catalysis of a transesterification reaction of phenethyl alcohol. The heterogeneous functionalized catalyst has good catalytic activity, can be repeatedly used and has long-term storage stability; the heterogeneous functionalized catalyst shows excellent enantiomer selectivity in a transesterification reaction of phenethyl alcohol.

Positive electrode material, preparation method thereof and lithium ion battery

The invention relates to a positive electrode material, a preparation method thereof and a lithium ion battery. The positive electrode material comprises a plurality of primary particles, the chemical general formula of the primary particles is shown as formula (I): LiaNixCo1-xMgySrzO2, a is more than or equal to 0.99 and less than or equal to 1.02, and xlt is more than or equal to 0.9; 1, 0.001 < = y < = 0.003, and 0.001 < = z < = 0.003; the average grain size Dp of the primary particles is 90-98 nm, the average grain size Dp of the primary particles and the median diameter D50 (nm) of the positive electrode material meet the following relation: the average grain size Dp of the primary particles is equal to (D003 + D104)/2, D003 refers to the grain size along the (003) direction, and D104 refers to the grain size along the (104) direction.

Water turbine set equipment state variable weight comprehensive evaluation method

The invention relates to the field of equipment operation monitoring, and discloses a hydraulic turbine set equipment state variable weight comprehensive evaluation method, which comprises the following steps: dividing a power generation equipment system into a plurality of subsystems and a plurality of sub-subsystems; obtaining the degradation degree and health index of each level of system according to a preset degradation judgment rule; obtaining a state space of each sub-subsystem and a corresponding fuzzy relation matrix according to a preset membership calculation rule; obtaining a health state comment of each sub-subsystem according to a preset state evaluation rule; the method comprises the steps that firstly, the degradation degree and the health index of divided sub-subsystems are calculated, then the state evaluation value of the whole system is finally obtained through weighted synthesis layer-by-layer upward, two weighted values are related to a fuzzy relation matrix, the fuzzy ...

Full-automatic deep soil settlement measurement method and device

The invention belongs to the field of geotechnical engineering soil settlement monitoring, and relates to a full-automatic deep soil settlement measuring method and device. A motor is controlled by a data acquisition control panel to drive a lead screw to rotate, a detection sliding block on the lead screw moves on the lead screw, the number of turns of rotation of the lead screw is recorded by a Hall element, and when the detection sliding block moves to the position of a layered settlement magnetic ring, a reed switch in the detection sliding block transmits a signal to the data acquisition control panel through electromagnetic induction, so that the motor stops rotating; the detection sliding block stops at the position of the layered settlement magnetic ring, the number of rotation turns recorded by the Hall element is the thread pitch number of the detection sliding block moving on the lead screw, the moving distance of the detection sliding block on the lead screw is calculated according ...

Manual switch monitoring method and new energy vehicle

The invention relates to the technical field of vehicle control, in particular to a manual switch monitoring method and a new energy vehicle. The method comprises the steps that under the condition that the new energy vehicle is in a high-voltage state, real-time voltage between a low-voltage storage battery and a manual switch is obtained, and the low-voltage storage battery is electrically connected with the manual switch; under the condition that the real-time voltage is smaller than a preset voltage threshold value, driver seat use information is obtained; under the condition that the driver seat use information indicates that the driver seat is used by a person, switch accidental disconnection prompt information is generated, and the switch accidental disconnection prompt information is used for prompting that a manual switch is disconnected accidentally; and under the condition that the driver seat use information indicates that the driver seat is not used by a person, manual switch-off ...

Heating structure and electronic cigarette

The invention relates to the technical field of electronic cigarettes, in particular to a heating structure and an electronic cigarette, the heating structure is used for heating a cigarette core, the heating structure comprises a heating part and an inductance coil, the cigarette core is sleeved with the heating part, the heating part is sleeved with the inductance coil, and the heating part comprises a metal layer, a first insulating layer and a resistance layer which are sequentially arranged from inside to outside. According to the heating structure, a resistance heating mode and an electromagnetic induction heating mode are combined, a mixed heating mode is adopted, therefore, the defects of a resistance heating mode and an electromagnetic heating mode are overcome, and the heating structure has the advantages of being high in heating efficiency and good in heating effect and is quite worthy of application and popularization.

Flexible load identification method and device

The invention discloses a flexible load identification method and device. The method comprises the following steps: acquiring target load data corresponding to a plurality of electricity accounts in a target power grid in a first sampling time period; first classification processing is carried out on the target load data corresponding to the multiple power consumption accounts to obtain a first load classification result, the first load classification result comprises first class load data composed of rigid loads and second class load data composed of composite loads, and the composite loads comprise the rigid loads and the flexible loads; and based on the second type of load data, a K-nearest neighbor algorithm is adopted to obtain a flexible load identification result corresponding to the target power grid. According to the invention, the technical problem of poor regulation and control balance of the power distribution network caused by low user side flexible load identification accuracy ...

Frequency modulation control method and device, frequency modulation controller, storage medium and program product

The invention relates to a frequency modulation control method and device, a frequency modulation controller, a storage medium and a program product. The method comprises the steps of obtaining a current system frequency of a power system through a target frequency modulation controller, obtaining a current output power of a target energy storage device, determining a target output power according to the current system frequency, the current output power and a preset frequency modulation condition, and then controlling the target energy storage device to output the target output power, therefore, the system frequency of the power system is in a preset safety range. Wherein the target frequency modulation controller is any frequency modulation controller in the power system, and the target energy storage device is an energy storage device correspondingly controlled by the target frequency modulation controller. The output power obtained by the method can ensure that the energy storage device ...

Method and device for rapidly generating obstacle avoidance trajectory of aircraft

The invention provides an aircraft obstacle avoidance trajectory rapid generation method and device, and belongs to the technical field of aircraft path planning. The method comprises the steps that according to a kinematics model and a dynamics model of an aircraft, an aircraft obstacle avoidance trajectory optimization problem is constructed, and constraint conditions of the optimization problem are endpoint constraints of aircraft trajectory planning and obstacle avoidance constraints in the flight process of the aircraft; the objective function is aircraft comprehensive performance index minimization considering a time performance index function and an overload integral performance index function; by constructing a polynomial-represented flight trajectory equation, the obstacle avoidance constraint is converted into an obstacle avoidance performance index function, a comprehensive performance index is added, a time performance index function, an overload integral performance index function ...

Method and system for judging insulation state of high-voltage bushing

The invention discloses a system and method for judging the insulation state of a high-voltage bushing, and the system comprises a monitoring signal unit, a characteristic parameter extraction unit, a weight obtaining unit, and an insulation state judgment unit, and the monitoring signal unit obtains an insulation state monitoring signal of the high-voltage bushing; the characteristic parameter extraction unit obtains characteristic parameters according to the insulation state monitoring signals and constructs an evaluation factor set; the weight obtaining unit obtains the weight of the characteristic parameter; and the insulation state judgment unit judges the insulation state of the high-voltage bushing according to an evaluation factor set constructed by the characteristic parameters and the weights of the characteristic parameters. According to the method, various types of monitoring signals capable of reflecting the insulation state of the high-voltage bushing are adopted, the characteristic ...

Method and device for reducing off-network risk of wind power plant

The invention discloses a method and a device for reducing an off-network risk of a wind power plant, and belongs to the technical field of power system simulation analysis. The method provided by the invention comprises the following steps: establishing an SVC transient simulation model; according to the SVC transient simulation model, an SVC voltage reactive transient trajectory is determined, and transient trajectory features are determined; and determining a control strategy of the SVC according to the transient trajectory characteristics, and controlling the SVC to operate according to the control strategy. According to the method, high voltage possibly generated after the wind power access node breaks down can be effectively reduced, and the risk that the wind turbine generator set is off-grid can be effectively reduced.

Preparation method of difluoroacetic acid

The invention provides a preparation method of difluoroacetic acid, which comprises the following steps: by adopting a brand-new synthesis route, taking acetone or dimethyl sulfoxide as a dipolar solvent and taking monochlorodifluoromethane as a starting raw material, firstly reacting monochlorodifluoromethane with pyridine to generate N-difluoromethyl ammonium chloride; according to the method, N, N-difluoromethyl ammonium chloride is used as a difluoromethyl positive ion intermediate or a difluorocarbene source to react with cyanide negative ions under the catalysis of alkali to generate difluoroacetonitrile, the difluoroacetonitrile is subjected to hydrolytic oxidation and acidification to prepare the difluoroacetic acid, the product yield reaches 64% or above, and the purity reaches 99% or above; compared with the existing preparation method, the preparation method disclosed by the invention has the advantages of simple preparation process, mild reaction conditions, short reaction time ...

Bracket riveting equipment for automobile part production

The invention is applicable to the field of riveting, and provides bracket riveting equipment for automobile part production, which comprises a workbench, a mounting frame fixedly connected to the top of the workbench, an extrusion frame slidably connected to the interior of the mounting frame, an extrusion head slidably connected to the interior of the extrusion frame, and a clamping mechanism, the clamping mechanism is connected to the extrusion frame and used for clamping the automobile parts to the workbench. The first motor drives the extrusion frame and the extrusion head to do reciprocating vertical motion, so that continuous operation can be realized, and the riveting working efficiency is improved; according to the automatic riveting device for the automobile parts, the automobile parts are clamped on the workbench firstly, then the extrusion head rivets the automobile parts, the problem that in the riveting process, the riveting quality is reduced due to displacement of the automobile ...

Inert gas protection concentration control method for battery box

The invention discloses a battery box inert gas protection concentration control method. The method comprises the following steps: acquiring state parameters of each battery box in real time; wherein the state parameters comprise pressure, inert gas concentration, VOC concentration, CO concentration and temperature; according to the obtained pressure, VOC concentration, CO concentration and temperature in each battery box and a preset thermal runaway characteristic parameter model, whether thermal runaway occurs in the battery box or not is judged; when it is judged that thermal runaway occurs, thermal runaway treatment measures are taken; when it is judged that the thermal runaway does not occur, whether gas replacement needs to be conducted on the battery box or not is judged; and if yes, carrying out gas replacement on the battery box. According to the invention, the state parameters of each battery box can be obtained in real time, and whether thermal runaway occurs in the battery box ...