Primers and probes for detecting mutation of cancer gene BRAFV600E

The invention relates to the field of biotechnology and aims to provide multiple primers and probes for detecting mutation of a cancer gene BRAFV600E. The primers and probes provided by the invention respectively comprise a mutation specific forward primer, a mutation non-specific forward primer, universal reverse primers and universal probes shown in SEQ NO.1-11. The detection sensitivity of themutation specific primer and probe provided by the invention can reach 500 copies/ml, thus the sensitivity is good. If a sample does not contain the cancer gene BRAFV600E, the ct value of the amplification curve of the sample is greater than or equal to 36, and the specificity is strong. Because the mutation non-specific primer is simultaneously designed in the invention to be used for detecting the total template quantity of samples, the false negative result is avoided and the quality control is convenient.

Method for regulating and controlling adenovirus protein by double promoter and use thereof

The invention provides a method for regulating and controlling adenovirus protein with double promoter, which comprises the following steps: inserting the human end granule enzyme catalysis subunit promoter and cyclooxygenase 2 promoter to E1A and E1B front promoter domain of adenovirus vector Pxc1 by cutting with Agel single enzyme and Eagl single enzyme and the vector of an adenovirus Pxc1; regulating and controlling the early gene E1A and E1B of adenovirus. The method is fit for the application of tumor gene medicine for regulating and controlling the early gene E1A and E1B of adenovirus. The method has the rational design, and the experiment indicates that the restructuring adenovirus can express the breeding and the killing of the adenovirus in the adenovirus of the end granule enzyme and the cyclooxygenase 2, but the adenovirus doesn't breed in the normal cell.

Low-temperature atomization cooling device for orthopedic surgery and control method of low-temperature atomization cooling device

The invention relates to an orthopedic surgery instrument, in particular to a low-temperature atomization cooling device for an orthopedic surgery and a control method of the low-temperature atomization cooling device. The orthopedic surgery cooling device solves the problem that in the orthopedic surgery process, an existing cooling mode is prone to causing heat injury, and consequently the visibility of a surgical site is low. A low-temperature atomization cooling device for orthopedic surgery comprises a gas path part, a liquid path part, a spray gun and a refrigeration box. The gas circuit part comprises an air compressor, a gas guide tube A, a pressure regulating valve, a gas guide tube B, a spiral gas guide tube and a gas guide tube C; the liquid path part comprises a normal saline bag, a liquid guide pipe A, a peristaltic pump, a liquid guide and gas guide pipe, a three-way electromagnetic valve, a liquid guide pipe B, a spiral liquid guide pipe, a liquid guide pipe C, a liquid guide ...

Reservoir thermal reservoir performance evaluation method based on granite pore radius fractal model

The invention provides a reservoir thermal reservoir performance evaluation method based on a granite pore radius fractal model, and belongs to the field of research on the flow activity degree of reservoir pore fluid. A nuclear magnetic resonance test is carried out on rock samples, a fractal dimension model based on the pore radius is constructed by utilizing the basic principle of fractal geometry, fractal dimensions of different granite samples are calculated, and it is assumed that thermal damage to rock stratums in the same temperature interval is consistent; the distribution and change characteristics of the pore structure of the heat-damaged granite are quantitatively represented, fractal dimensions of different rocks are compared, the heat storage performance is represented through the change of the microstructure, and finally the heat storage performance of the geothermal reservoir is evaluated. The steps are simple, the range of the pore diameter of the tested rock is wide, mathematical ...

Alternating current and direct current hybrid power grid joint real time peak shaving method

The invention discloses an alternating current and direct current hybrid power grid joint real time peak shaving method which belongs to the technical field of power system operation and control. According to the invention, the constraints of a contact line plan of a non safe and reliable constraint and a direct current system power transmission plan are relieved; alternating current and direct current hybrid power grids are used as a whole body; an objective function which comprehensively considers the comprehensive evaluation index, the power limit, the interruptible load limit, the AGC unit economy and environmental friendliness, and the power loss of a new energy power station is established; by using AGC unit active regulation rate, direct current system power, power grid steady frequency, active reserve and the online power transmission capacity of a safe and reliable power transmission channel as the constraints, and by considering bus load prediction, new energy power station power ...

Ultrasonic skin detection system based on radio frequency beauty instrument

The invention discloses an ultrasonic skin detection system based on a radio frequency beauty instrument, and the system comprises the radio frequency beauty instrument which is internally provided with an ultrasonic skin detection system. The ultrasonic skin detection system comprises an ultrasonic transducer, a signal receiving and transmitting module, a signal processing module, a display module and a storage module, the ultrasonic transducer is connected with the signal receiving and transmitting module, and the signal receiving and transmitting module, the display module and the storage module are all connected with the signal processing module. The signal processing module comprises a main control chip, the collagen content change of the skin can be indirectly reflected by measuring the skin echo density, visualization of the skin state is achieved, the beautifying effect is fed back to a user, and the experience feeling of the user is improved.

Flexible screen bending test device

The invention relates to a flexible display screen bending test facility, in particular to a flexible screen bending test device which comprises a base, a bending piece is arranged on the rear portion of the upper end of the base, a heating rod is vertically installed in the middle of the upper end of the bending piece, a guide sleeve is fixedly installed on the outer surface of the heating rod, and a guide piece is fixedly installed at the front end of the guide sleeve. A plurality of fixing seats are embedded in the lower end of the guide piece in a linear array mode, threaded columns are rotationally embedded in the front ends of the fixing seats, threaded rings are screwed on the outer surfaces of the threaded columns, pressing plates are fixedly installed at the upper ends of the threaded rings, concave frames extend from the lower ends of the threaded rings, prisms are fixedly installed at the front ends of the fixing seats, and the prisms are fixedly installed at the lower ends of ...

Sequence for expressing targeted double-recombinant apoptosis proteins of liver cancer and application thereof

The invention provides a sequence for expressing targeted double-recombinant apoptosis proteins of liver cancer, which is a DNA sequence for regulating the expression of two apoptosis proteins of Caspase 3 and Granzyme B by using a specific AFP promoter, and has a nucleotide sequence shown as SEQID No:1. The sequence utilizes the function of targeted regulation of an AFP enhancer/promoter transcriptional regulatory element to lead foreign gene to be expressed in liver cancer cells with positive AFP, thus realizing targeted and high-efficiency anti-tumor effect; and the sequence constructs recombinant activated type Caspase-3 molecule, applies the recombinant activated type Caspase-3 to pro-apoptotic effect for target cells, introduces granzyme B, fuses the granzyme B and the recombinant activated type Caspase-3 molecule, and mediates the apoptosis of the target cells. The invention also provides an application in preparing targeted gene drugs for treating the liver caner with the positive ...

Method and device for predicting commutation failure of high-voltage direct-current power transmission system

The invention discloses a commutation failure prediction method and device for a high-voltage direct-current transmission system, and the method comprises the steps: distinguishing the commutation failure of the high-voltage direct-current transmission system caused by a short-circuit fault and an on-off fault, and carrying out the prediction of whether the commutation failure is caused by different faults through a classification machine learning model and a regression machine learning model or not. The robustness of the prediction result is guaranteed, meanwhile, due to the fact that the machine learning model is adopted, the method does not depend on artificial experience, and the calculation time is greatly shortened.

Rack server system and operating method thereof

Rack server system and method for managing rack configuration information therein

Welding simulation method for realizing welding bead dynamic filling

The invention discloses a welding simulation method and system for achieving welding bead dynamic filling and a storage medium. The method comprises the steps that a simulation model of a welding structure is imported; according to the welding sequence, thermal boundary conditions are loaded on each welding seam in sequence, the filling units of the welding seams which are not welded are hidden, the filling units of the welding seams which are welded are activated, and the dynamic welding seam filling process in the actual welding process is simulated; and outputting welding deformation data of the simulation model. According to the method, the filling units of the weld joints which are not welded are hidden in the welding process, the filling units of the weld joints which are welded are activated, the conformity between the structural rigidity of the simulation model and the actual structure is improved, and therefore the accuracy of the simulation result is improved; the problem that ...

Puncture image generation method, puncture guide information generation method and related devices

The invention discloses a puncture image generation method and device, electronic equipment and a computer readable storage medium. The method comprises the steps of obtaining three-dimensional linear positioning data of a puncture needle; determining section positioning data of a section to which the puncture needle belongs by using the three-dimensional linear positioning data; acquiring three-dimensional body data corresponding to the punctured part; on the basis of the section positioning data, section data are determined in the three-dimensional body data, and a puncture image is obtained through the section data; according to the method, the puncture image recording the tissue section where the puncture needle is located in the punctured part is provided through the three-dimensional body data, more puncture information is provided, and more accurate puncture guiding is facilitated.

Simplification method for optimal cutting machine control strategy search of electric system transient stability

The invention discloses a simplification method for the optimal cutting machine control strategy search of electric system transient stability, and belongs to the technical field of electric system emergency control. On the basis of an EEAC (Extend Equal Area Criterion), according to the analysis results and the difference of a SEEAC (Static EEAC) algorithm and a DEEAC (Dynamic EEAC) algorithm, an anticipatory fault set is classified on the basis of transient stability severity; a diffset which is identified as an unstability class is subjected to a simplification operation by utilizing an intermediate result subjected to margin calculation through the SEEAC algorithm and the DEEAD algorithm during identifiction; meanwhile, a cutting machine control strategy checking index is designed to check the effectiveness of each cutting machine and guide a simplification method and a traditional method to switch so as to guarantee that the obtain cutting machine control strategy is optimal. The method ...

Method of power system preventive control candidate measures identification self-adaptive to external environment

A method of power system preventive control candidate measures identification self-adaptive to external environment, which is applicable to dynamic identification of stations and power equipment under the effect of calamity, and judgment of preventive control measures that lose or restore control capability, and those for which control range or cost has changed. Automatic online identification of set of preventive control candidate measures includes two tasks: identification of stations and power equipment under the effect of calamity, and adjustment of the space of preventive control measures. According to information of power transmission line fault probability due to calamity, online dynamic quantitative assessment of stations and equipment is performed under the effect of external environment, and automatically correct control range and control cost of the measures according to the effect on equipment, so that the result of preventive control adapts to real-time external environment ...

Electric power system safety and stability emergency control method based on two-stage remedial strategy

The invention discloses an electric power system safety and stability emergency control method based on a two-stage remedial strategy, and belongs to the field of electric power system safety and stability control. A safety and stability sensitivity comprehensive factor and a control cost calculation formula of a control measure are added into the control strategy table designing to meet the requirement for safety and stability optimizing control. Under the condition that a control order is not actually executed, a control station selects an optimizing control measure from the control measure space of the control station in an iteration mode to carry out the remedy control in a precedence mode, and a last-level collaborative defense control station of the control station selects the optimizing control measure in the control measure space of the collaborative defense control station to carry out the remedy control; under the condition that the control station does not have the control measure ...

Diesel engine aftertreatment unit pressure drop prediction method, system and equipment and diesel locomotive

The invention relates to a diesel engine aftertreatment unit pressure drop prediction system, method and device and a diesel locomotive, and the system comprises a parameter collection module which is used for collecting diesel engine operation parameters and aftertreatment system parameters, and the operation parameters comprise engine exhaust parameters, carrier parameters and catalyst coating parameters; the carrier pressure drop calculation module is used for calculating straight-through type carrier pressure drop and wall flow type carrier pressure drop by using the diesel engine operation parameters acquired by the parameter acquisition module; and the pressure drop prediction module is used for accumulating and summing the straight-through type carrier pressure drop and the wall flow type carrier pressure drop calculated by the carrier pressure drop calculation module to obtain the total pressure drop of the diesel engine post-processing unit, and the total pressure drop serves as ...

Sealed fine pulping machine with spindle eccentric structure

The invention discloses a sealed fine pulping machine with a spindle eccentric structure. The sealed fine pulping machine comprises a drum which is arranged on a rack and is circumferentially provided with sieve pores, and a spindle which is arranged in the drum in a penetrating way, wherein a sealing cover for sealing and covering the drum is arranged on the rack, and the sealing cover comprises an upper cover and a lower cover which are vertically matched to seal the circumferential surface of the drum, and a front feed sealing plate and a back discharge sealing plate which block the front and back openings of the drum; the front feed sealing plate is provided with a diversion opening, and an oversize material in the drum is guided into a discharge pipe by the back discharge sealing plate; the front and back ends of the spindle are respectively and rotatably supported on the front feed sealing plate and the back discharge sealing plate, and the central axis of the spindle and the central ...

Passenger pops out side demarcation test bench of analogue test impinger

The utility model discloses a passenger pops out side demarcation test bench of analogue test impinger is applicable to among the car development the design process when carrying on popping out analogue test to the side of the passenger to the vehicle that has the gas curtain that incline, marks the various laws and regulations's of according with impinger. This test bench includes: adjustable over -and -under type operation panel is provided with the motor on this operation panel for control actuating mechanism's operation and adjust required speed, actuating mechanism includes the transmission who is connected with the motor, the displacement device that is connected with transmission and connecting in this displacement device's hob, collection system includes the force transducer and data acquisition and the processing unit that are connected with displacement device and hob, gathers through the data signal to force transducer, handles data signal turning into visual engineering curve ...

Blade grid wind tunnel experiment working condition parameter correction method based on deep neural network

The invention relates to a cascade wind tunnel experiment working condition parameter correction method based on a deep neural network, and belongs to the field of aerospace experiment measurement and artificial intelligence. According to floating working condition parameters, multiple sets of incoming flow parameters are constructed, and cascade flow field numerical calculation is carried out; the normalized working condition parameters after floating are used as input quantities, the normalized corresponding physical quantities of the measuring point positions of the front 50% area of the blade chord length of the numerical flow field are used as output quantities, and a deep neural network is constructed; taking a mean square error of a deep neural network prediction result and an experimental measurement result as a loss function, and carrying out gradient back propagation on the loss function by using an automatic differential algorithm to obtain a gradient of the mean square error ...

Dead fish detection and cleaning robot for deep sea net cage

The invention discloses a dead fish detection and cleaning robot for a deep sea net cage, and relates to the field of deep sea breeding industry and underwater robot operation. Ski-jump plates are arranged on the two sides of an inlet of a collecting box correspondingly, and a propeller is arranged at a water outlet of the collecting box; the drainage port of the propeller thruster and the diseased and dead fish collecting port are distributed in a diagonal mode in the longitudinal direction, and when water flow in the collecting box is drained under the action of the propeller thruster to form negative pressure, external water flow is sucked into the diseased and dead fish collecting port; diseased and dead fishes at the bottom of the net cage are driven to enter a collecting opening, jump upwards along a sliding and jumping plate and then fall into the two sides in the collecting box; the waterproof pan-tilt camera and the waterproof binocular camera can monitor and collect the operation ...

PN emission control method and device

The invention provides a PN emission control method and device.According to the method, under the operation working condition, parameters of a DPF of a vehicle are obtained, whether the filtering efficiency of the DPF is about to fail or not is judged according to the parameters, and under the condition that it is determined that the filtering efficiency is about to fail, a gear shifting request is generated according to the temperature; and the gear shifting request is sent to a transmission control unit (TCU) of the vehicle, so that the TCU executes gear shifting operation on the vehicle based on the gear shifting request. According to the scheme, under the condition that it is determined that the filtering efficiency is about to fail, the gear shifting request is generated and sent to the transmission control unit TCU of the vehicle, so that the TCU executes gear shifting operation on the vehicle based on the gear shifting request, the rotating speed of an engine is adjusted, the temperature ...

Engine control method and vehicle

The invention belongs to the technical field of vehicles, and discloses an engine control method and a vehicle. The engine control method comprises the steps that the DPF pressure difference and the waste gas volume flow rate in a DPF are obtained in real time, the DPF flow resistance and the change rate of the DPF flow resistance are obtained according to the DPF pressure difference and the waste gas volume flow rate in the DPF, the actual exhaust temperature of an engine is obtained in real time, and the actual exhaust temperature of the engine is obtained according to the change rate of the DPF flow resistance. When the actual exhaust temperature of the engine is larger than or equal to the set temperature and the DPF flow resistance reduction duration is larger than or equal to a first calibration time limit value, whether the DPF has the filtering failure risk or not is judged according to the change rate of the DPF flow resistance; meanwhile, according to the flow resistance of the ...

Alternating current frequency converter input quantity calculation method and device, air conditioner and storage medium

The invention discloses an alternating-current frequency converter input quantity calculation method and device, an air conditioner and a storage medium, relates to the field of frequency converters, and aims to solve the technical problem of poor accuracy of input quantity calculation of an alternating-current frequency converter. The AC frequency converter comprises a rectification module, a DC side reactance assembly, a DC bus capacitor and an inversion module. The method comprises the following steps: acquiring a target subharmonic component corresponding to a target voltage; the target voltage is voltage at two ends of the direct-current bus capacitor; acquiring a ripple current flowing through the DC bus capacitor according to a target sub-harmonic component corresponding to the target voltage; and determining the input current and/or the input voltage of the AC frequency converter according to the ripple current flowing through the DC bus capacitor and the load current flowing through ...

Construction method of ganoderma spore powder polysaccharide fingerprint and standard fingerprint of ganoderma spore powder polysaccharide

The invention relates to a construction method of ganoderma spore powder polysaccharide fingerprint and a standard fingerprint of the ganoderma spore powder polysaccharide, belonging to the fingerprint technical field of the traditional Chinese medicine and products thereof and the functional food raw material and products thereof. The construction method in the invention comprises the following steps: extracting ganoderma spore powder polysaccharide; hydrolyzing a part of ganoderma polysaccharide; performing PMP derivatizing reaction on a part of the hydrolyzate of ganoderma polysaccharide; performing reversed phase HPLC fingerprint analysis and determining the standard fingerprint; performing the HPLC analysis on the polysaccharide fractions of ganoderma spore powder samples from fifteen different producing areas and comparing the fingerprints of the ganoderma spore powder samples to determine the common fingerprint characteristics so as to obtain a standard fingerprint. The fingerprint ...

Method for identifying candidate prevention and control measure of self-adaptive external-environmental electric power system

The invention relates to a method for identifying the candidate prevention and control measure of a self-adaptive external-environmental electric power system, which is applicable to dynamically identifying plant stations and electric power equipment influenced by disasters, judging the prevention and control measure losing or recovering the regulating capability and having the changed regulatingrange or cost and online dynamically adjusting the usable control measure of prevention and control aid decision making and the regulating range and the control cost thereof. The candidate preventionand control measure integrates two tasks of online automatic identification comprising the identification of the plant stations and the equipment influenced by the disasters and adjustment of prevention and control measure spaces, i.e. the plant stations and the equipment (containing load buses) influenced by external environments are online dynamically and quantitatively evaluated according to the information ...

Ultrasonic image processing method and device, equipment and storage medium

The invention discloses an ultrasonic image processing method and device, equipment and a storage medium. In the scheme, after an ultrasonic image is obtained, the blood vessel distribution and the focus position in the ultrasonic image are determined firstly; and then determining a puncturable region which is surrounded by a plurality of target coordinate points on a probe contact surface presented by the ultrasonic image and the lesion position and is not provided with blood vessels in the ultrasonic image based on the blood vessel distribution and the lesion position, and clearly marking a safe puncturable region in the ultrasonic image, so that the risk of accidentally injuring the blood vessels is effectively reduced. According to the scheme, the puncturable area without the blood vessels distributed in the ultrasonic image can be automatically recognized and labeled, by means of labeling of the puncturable area, a doctor can be helped to determine a proper needle inserting position ...

Regeneration rate control method and device

The invention provides a regeneration rate control method and device.The control method comprises the steps that when it is detected that the filter value of a particulate matter trap exceeds the standard, the current temperature of an engine is obtained; if the current temperature is lower than the preset threshold value, set parameters of the engine are adjusted till the temperature of the engine is not lower than the preset threshold value, and the set parameters at least comprise the advance angle, the rail pressure and the air inflow. Under the conditions of given carbon loading capacity and unchanged oxygen concentration, the temperature is increased to reduce the regeneration rate of the DPF, the consumption speed of carbon deposition in the DPF is slowed down, and the problem of PN emission load failure is avoided.

Low-density silicon dioxide aerogel coiled material and preparation method thereof

The invention provides a preparation method of a low-density silicon dioxide aerogel coiled material, which comprises the following steps: S1, performing opening, mixing, carding, lapping and needling on glass fiber chopped shreds doped with 10-50% of flame-retardant organic fibers to obtain a fiber reinforcement; s2, silicon dioxide sol is prepared through hydrolysis with a co-precursor method; s3, adjusting the pH value of the silicon dioxide sol obtained in the step S2 by using an alkaline substance, carrying out saturated adsorption on the obtained silicon dioxide sol by using the fiber reinforcement obtained in the step S1, and rolling to obtain a wet gel composite coiled material; and S4, drying the wet gel composite coiled material obtained in S3 by an ethanol supercritical drying process to obtain the low-density silicon dioxide aerogel heat insulation coiled material. According to the invention, a co-precursor mode is adopted for addition, thoroughness of hydrophobic modification ...

Keycap blanking mechanism

The utility model provides a keycap blanking mechanism. The keycap blanking mechanism comprises a product falling through pipe, a material blocking bottom plate and an air cylinder, the product falling through pipe is connected with the supporting plate through a connecting plate. A pipe opening of the product falling through pipe is the same as the square groove in the connecting plate in shape and size; the material blocking bottom plate is connected with a supporting plate through a supporting block. The air cylinder is located on the lower end face of the blocking bottom plate. A piston rod of the air cylinder is connected with a material stopping block in the square groove through a moving rod; product falling through grooves are formed in the upper end face of the material blocking bottom plate and the material blocking block and correspond to the product falling through pipes in position, check blocks are arranged above the two sides of the material blocking block in the width direction ...

Fabricated bidirectional reversible deformation tie bar for double-lug-plate structure and reversible deformation control method

The invention discloses an assembly type bidirectional reversible deformation lacing wire for a double-lug-plate structure and a reversible deformation control method. The lacing wire comprises an F-shaped main body, a rotary supporting arm assembly, a plug pin assembly, a rotary limiting assembly and a horizontal tightening component. The rotary supporting arm assembly, the plug pin assembly and the rotary limiting assembly are installed on the F-shaped body to form a force releasing part used for releasing force after anti-deformation control over the lug plate. The two rotary supporting arm assemblies are installed in rectangular groove holes formed in the F-shaped body through pin shafts respectively and can rotate in the rectangular groove holes. The three horizontal tightening components are located at the lower ends of the two rotary supporting arm assemblies and the lower end of the F-shaped body end extending arm correspondingly. And the horizontal tightening component is used ...

Dust removal method and device applied to air conditioner outdoor heat exchanger

The invention provides a dust removal method and device applied to an air conditioner outdoor heat exchanger. An outdoor unit of an air conditioner comprises the outdoor heat exchanger and an air duct system composed of a motor and vanes. The dust removal method includes the following steps that whether dust removal processing needs to be carried out on the outdoor heat exchanger is judged; when it is judged that the outdoor heat exchanger needs dust removal processing, at least the motor is controlled to rotate reversely, and when the outdoor unit works normally, the motor rotates forwards. By means of the technical scheme, the effect that the air conditioner automatically carries out dust removal on the outdoor heat exchanger is realized, a higher heat exchange efficiency of a condenser is guaranteed, and the complex operation of detaching the outdoor unit when the condenser is cleaned manually is avoided.

Quick robust classification method of preconceived faults for power system transient stability assessment

The invention discloses a quick robust classification method of preconceived faults for power system transient stability assessment and belongs to the technical field of power systems and automation thereof. The method is based on an extended equal area criterion and divides examples in a preconceived fault universal set into five classifications, i.e., stable, doubtfully stable, critical, doubtfully instable and instable by deeply mining different allowance information and comparison results thereof contained by transient stability analysis algorithms with different integration steps, reflecting the time-varying degree of research examples and forming identification rules for different classifications of transient stability severity in combination with fault information. The quick robust classification method of preconceived faults for power system transient stability assessment can realize high-efficiency, reliable and reasonable classification of different classifications of transient ...

Modified hemocyanin catalyst composite material and application thereof

The invention relates to the technical field of lithium-sulfur batteries, in particular to a modified hemocyanin catalyst composite material and application thereof. The modified hemocyanin (DHcs) catalyst is designed and developed through glacial acetic acid acidification treatment, and is introduced into a lithium-sulfur battery system to improve the conversion efficiency of lithium polysulfide, so that the electrochemical performance of the lithium-sulfur battery is improved, and the problems of shuttle effect and slow sulfur conversion kinetics in the lithium-sulfur battery are solved; the method has a great application prospect in preparation of the positive electrode material.

Phase sequence measuring device and measuring method

The invention discloses a phase sequence measuring device and method, and the device comprises a universal meter which is provided with a first meter pen interface and a second meter pen interface which are the same in structure, the first meter pen interface is connected with a first installation disc through a first connecting line, the first installation disc is movably connected with a first screwing disc through a rotating shaft, and the second meter pen interface is connected with a second installation disc through a second connecting line. The first installation disc is also connected with the three branch clamps through the three branch lines, and the part connected with the interface of the second meter pen is the same as the interface of the first meter pen. The measuring method comprises the following steps: clamping a first branch at any phase of a three-phase power supply side, respectively clamping three branch clamps connected with two interfaces of a meter pen at a three-phase ...

Low-impurity inorganic silica sol preparation device

The invention relates to the technical field of inorganic silica sol preparation, and discloses a low-impurity inorganic silica sol preparation device which comprises a cleaning tank, a cleaning cylinder is arranged in the bottom end of the cleaning tank, a clamping assembly is arranged in the top end of the cleaning tank, and a cleaning assembly is arranged in the clamping assembly. The cleaning assembly is located in an inner cavity of the cleaning cylinder, the cleaning assembly and the cleaning cylinder are matched to be used for cleaning granular silicon raw materials for preparing inorganic silica sol and reducing surface impurities of the granular silicon raw materials, and a sewage discharging assembly is arranged on the bottom wall of an inner cavity of the cleaning tank; the sewage discharging assembly is used for discharging sewage for cleaning granular silicon raw materials for preparing inorganic silica sol, supporting legs are fixedly installed at the bottom end of the cleaning ...

Server system and heat dissipation method thereof

The invention discloses a server system and a heat dissipation method thereof. The server system comprises at least a fan module, multiple server nodes, and a system control module. Each service node comprises at least a monitor and a node control chip. Each monitor is used for monitoring temperature information of each server node. Each nod control chip is internally provided with an algorithm used for capturing the temperature information and calculating a rotating speed value of each node based on the algorithm. The system control module manages the server system so as to capture a node fan rotating value speed respectively through the node control chip of each server node, obtain at least a coordinating fan rotating speed value based on the node fan rotating speed value, control the rotating speed of the fan module by utilizing the coordinating fan rotating speed value so as to dissipate heat of the server nodes.

Electric lifting device for high-place pipeline installation

The utility model belongs to the field of pipeline installation hoisting equipment, and particularly relates to an electric lifting device for high-place pipeline installation. The lifting device comprises a bottom frame, a lifting telescopic rod, a lifting arm part, a motor part and a lifting rope, the motor part is fixedly installed on the bottom frame, the lifting telescopic rod is vertically and fixedly installed on the bottom frame, the lifting arm part is fixedly installed on the lifting telescopic rod, and the lifting rope bypasses the motor and the lifting arm part and is used for lifting objects. The pipe lifting device overcomes the defects of high risk, high labor intensity of workers, low efficiency and higher cost during manual pipe lifting and mounting in the prior art.

Remedy method for non-execution of safe and stable emergency control instructions of electric system

The invention discloses a remedy method for non-execution of safe and stable emergency control instructions of an electric system and belongs to the field of safe and stable control of electric systems. The method comprises the steps of performing stepped discretization on the control instructions represented by control quantity values to show various situations of poor execution of control quantity, adding various expected unexecuted control instruction combinations into a general control strategy table design, giving corresponding remedy control measures in a control measure column of a control strategy table, after a safe and stable control system detects that defended expected failures occur, executing the control measures searched from the strategy table, then judging execution situations of the control measures, and issuing the remedy control measures corresponding to the unexecuted control instruction combinations from the control strategy table for execution. The method can effectively ...

Electronic banking data processing system and method

The invention discloses an electronic banking data processing system and method. The system comprises a data collection module, a data processing module, an application area report display module and an analysis area module. The data collection module is used for collecting service data of each electronic channel system, and the data processing module is used for building various data models according to the service data of the electronic channel system; the application area report display module is used for building an application area in a database and carrying out statistical processing and report display on various data by means of the various data models in the application area, wherein the application area comprises database list SCHEMAs which automatically run in batches; the analysis area module is used for building an analysis area in the database, synchronizing various data of SCHEMAs in the analysis area and various data of the SCHEMAs in the application area and providing a ...

Starting control method and apparatus for motor, motor and compressor

The invention provides a starting control method and apparatus for a motor, a motor and a compressor. The starting control method for the motor comprises the steps of: after positioning a rotor of the motor, controlling the motor in a manner of current loop closing and speed loop opening; when the rotational speed of the motor reaches a first preset rotational speed, regulating the value of the current output by a q shaft current regulator of the motor according to the starting duration of the motor till the rotational speed of the motor reaches a second preset rotational speed; and when the rotational speed of the motor reaches the second preset rotational speed, controlling the motor in a manner of current hoop closing and speed hoop closing. According to the technical scheme, the problem of starting failure caused by overlarge rotational speed fluctuation can be effectively restrained in the starting process of the motor, thereby increasing the starting success rate of the motor.

Rack server system

New-energy connected-grid power control method based on prediction and adjustment performance and safety constraint

The invention discloses a new-energy connected-grid power control method based on prediction and adjustment performance and safety constraint and belongs to the technical field of electric-power system scheduling operation and control. According to control performance-price-ratio indexes of power-gird safety stability margin changes by new-energy-power-station connected-grid power control at a current moment, the new-energy connected-grid power control method divides new-energy power stations into a plurality of power-station groups which are approximate in control performance-price-ratio index so that a problem that grouping of the new-energy power stations according to the difference of connection power transmission channels can not reflect truly current transient and dynamic safety stability characteristics of a power grid is solved. The new-energy connected-grid power control method based on the prediction and adjustment performance and the safety constraint is capable of improving ...

Equipment for supercritical drying of inorganic silica gel with ethanol

The invention discloses equipment for supercritical drying of inorganic silica gel by using ethanol, and relates to the technical field of gel production. The equipment for supercritical drying of the inorganic silica gel through the ethyl alcohol comprises a support, a drying box is fixedly installed at one end of the support, a control valve is fixedly installed at the top of the drying box, an air guide pipe is fixedly installed on the outer side of the control valve, and a buckling assembly is arranged in the middle of the support. According to the equipment for supercritical drying of the inorganic silica gel through the ethyl alcohol, dry hot air is conveyed to the air guide pipe through the drying box, the dry hot air is injected into the drying kettle through the air distribution pipe so as to dry the silica gel in the drying kettle, and a protective net is arranged and mainly used for protecting an air outlet of the air distribution pipe; and the stirring motor drives the stirring ...

Rack-mounted server system and operation method thereof

The invention discloses a rack-mounted server system and an operation method of the rack-mounted server system. The rack-mounted server system comprises a rack management controller, a plurality of servers, a plurality of fan modules and a plurality of fan controllers, wherein the rack management controller comprises a plurality of different first communication ports, each fan controller comprises a plurality of different second communication ports, the fan controllers are connected with the first communication ports respectively, the servers are connected with the second communication ports respectively, the first communication ports are used by the rack management controller for identifying the fan controllers, and the rack management controller obtains position information of the servers in the rack-mounted server system through difference between the first communication ports and the second communication ports.

Contract curve decomposition method and device considering power generation side quotation strategy influence

The invention relates to a contract curve decomposition method and device considering the influence of a power generation side quotation strategy, and the method comprises the steps: obtaining basic prediction data, inputting the basic prediction data into a contract decomposition model, and obtaining a contract decomposition result; inputting into a marketization unit decision model to obtain a quotation curve function corresponding to the power generation side subject; simulating market clearing by adopting a pre-constructed market clearing model to obtain a market clearing price; and updating the basic prediction data according to the market clearing price, carrying out iterative optimization until the contract decomposition model converges, and outputting a final contract decomposition result. According to the method, simultaneous iteration is carried out on the contract decomposition model, the marketization unit decision model and the market clearing model, and the influence of double-track ...

Server system and message processing method thereof

The invention provides a server system and a message processing method thereof. The server system comprises a substrate management controller and a host system. The host system receives output messages through the substrate management controller, and the output messages are stored into cache space in the substrate management controller. When a remote device receives a command, the corresponding output messages are taken out from the cache space according to the received command. Besides, the corresponding output messages are transmitted to the remote device.

Ultrasonic contrast imaging method and device, display method and ultrasonic equipment

The invention discloses an ultrasonic contrast imaging method and device, a display method and ultrasonic equipment. The method comprises the following steps: acquiring an ultrasonic contrast image sequence; constructing an image matrix based on the ultrasound contrast image sequence; wherein each row in the image matrix corresponds to one frame of ultrasound contrast image in the ultrasound contrast image sequence, and each column in the image matrix corresponds to one position of the ultrasound contrast image; constructing a coefficient matrix, and carrying out filtering operation on the target ultrasound contrast image based on the coefficient matrix and the image matrix; wherein the target ultrasound contrast image is the last frame of ultrasound contrast image in the ultrasound contrast image sequence and/or the latter frame of ultrasound contrast image in the ultrasound contrast image sequence. Therefore, according to the ultrasonic contrast imaging method provided by the invention ...

Load transfer decision-making method for global optimal configuration of recovery resources of power distribution network

The invention discloses a load transfer decision-making method for global optimal configuration of recovery resources of a power distribution network. The available power capacity and the distribution of the available power capacity are adjusted by optimizing a load transfer scheme. According to whether load power failure occurs in the load transfer operation process, the load transfer operation process can be divided into load heat transfer and cold transfer: during heat transfer, two electrified areas are arranged in parallel, then loop opening is performed at a proper position to transfer the load from the original electrified area to the other electrified area or other branches of the electrified area, the load is not powered off during the period, and the load is not powered off during the period; the paralleling of the electrified areas of the power distribution network supplied with power by different TBs belonging to the same subarea of the power transmission network belongs to ...

Non-agglomeration nitride red fluorescent powder and preparation method thereof

The invention discloses agglomeration-free nitride red fluorescent powder and a preparation method thereof.The method comprises the steps that Eu (NO3) 3, Si powder and AlN powder serve as raw materials, a precursor is prepared through precipitation, staticizing, cleaning and drying, the precursor is sintered for 3-6 h at the temperature of 1,300-1,500 DEG C in the N2 atmosphere and then crushed after being cooled, a certain amount of Ca3N2 and NH4Cl are added into a glove box, the mixture is fully ground and evenly mixed and then placed into a multifunctional sintering furnace, and the agglomeration-free nitride red fluorescent powder is obtained. The preparation method comprises the following steps of: sintering in N2 atmosphere at the pressure of 0.9 MPa at 1700-1900 DEG C for 2 hours, cooling, crushing, repeatedly washing by using a hot salpeter solution and deionized water respectively, and drying to obtain a final product. The fluorescent powder prepared by the invention emits red ...

Construction method of ganoderma spore powder polysaccharide fingerprint and standard fingerprint of ganoderma spore powder polysaccharide

The invention relates to a construction method of ganoderma spore powder polysaccharide fingerprint and a standard fingerprint of the ganoderma spore powder polysaccharide, belonging to the fingerprint technical field of the traditional Chinese medicine and products thereof and the functional food raw material and products thereof. The construction method in the invention comprises the following steps: extracting ganoderma spore powder polysaccharide; hydrolyzing a part of ganoderma polysaccharide; performing PMP derivatizing reaction on a part of the hydrolyzate of ganoderma polysaccharide; performing reversed phase HPLC fingerprint analysis and determining the standard fingerprint; performing the HPLC analysis on the polysaccharide fractions of ganoderma spore powder samples from fifteen different producing areas and comparing the fingerprints of the ganoderma spore powder samples to determine the common fingerprint characteristics so as to obtain a standard fingerprint. The fingerprint ...

Method and device for improving interference rejection of electric board in electric equipment

The invention discloses a method and a device for improving the interference rejection of an electric board in electric equipment. The method comprises the following steps: sampling an input voltage of the electric board; judging whether the electric board is in a voltage sag or short interruption state according to the input voltage of the electric board; and if the electric board is in the voltage sag or short interruption state, turning off a load associated with the electric board in the electric equipment, to prolong the running time of the electric equipment before the electric board is reset. According to the method, the input voltage of the electric board is sampled, whether the electric board is in the voltage sag or short interruption state is judged according to the input voltage of the electric board, and if so, the load associated with the electric board in the electric equipment is turned off to prolong the running time of the electric equipment before the electric board is ...

Rack-mounted server system and method for automatically managing rack configuration information

The invention discloses a rack-mounted server system and a method for automatically managing rack configuration information. The rack-mounted server system comprises a plurality of servers, a plurality of fan modules, a plurality of fan controllers and a rack management controller, wherein the rack management controller is connected to the fan controllers, and detects the rack configuration information in the fan controllers during operation; the local rack configuration information in the rack management controller is updated into the rack configuration information in the fan controllers when the rack configuration information in the fan controllers is different from the local rack configuration information in the rack management controller.

Power distribution network parallel recovery sub-region division method, system and device and medium

The invention discloses a power distribution network parallel recovery sub-region division method, system and device and a medium. The method comprises the steps of obtaining a recovery state of each node in a power distribution network power failure scene; constructing a charged region and a recovery sub-region thereof based on the recovery state of each node; judging whether the recovery sub-regions of the electrified regions are overlapped or not, if not, outputting the current recovery sub-region, and if yes, determining an overlapped region and a power failure branch in the overlapped region; compiling a load distribution scheme for recovering the available power of the sub-regions with the overlapping regions; calculating the recovery value of the power failure branch according to the load distribution scheme; removing the removable power failure branch with the minimum recovery value so as to update the power distribution network power failure scene; a returning step: obtaining a ...

Labor-saving internal jacking and anti-deformation device and method

The invention discloses a labor-saving internal jacking and anti-deformation device and method. The device comprises a front jacking part, a middle force release part and a tail supporting part. The front jacking part is used for jacking and applying force to the large vertical plate on one side in the welding process of the large vertical plate and carrying out reversible deformation control; the middle force release part is used for limiting the front jacking part and the tail supporting part in the welding process of the large vertical plate and used for releasing the deformation resilience force of the large vertical plate after welding is completed; the tail supporting part is used for jacking the large vertical plate on the other side in the welding process of the large vertical plate; according to the invention, the reversible deformation control of the large vertical plate can be realized, the perpendicularity of the large vertical plate is ensured, and post-welding shape correction ...

Monitoring system of avalanche roof or blasting roof

The utility model discloses a monitoring system of avalanche roof or blasting roof, monitoring system of avalanche roof or blasting roof includes: at least one establishes the drilling in the avalanche region, drilling is extended along upper and lower direction, the upper end of drilling is opened, wherein be equipped with at least one coaxial cable in the drilling, some of coaxial cable is upwards stretched out drilling, with be used for to the electric pulse signal's that coaxial cable electric pulse signal of transmission and receive reflection return time -domain reflectomer, the time -domain reflectomer with the coaxial cable cooperation. Through utilizing the basis the utility model discloses monitoring system of avalanche roof or blasting roof can improve the security of mining.

METHOD OF POWER SYSTEM PREVENTIVE CONTROL CANDIDATE MEASURES IDENTIFICATION SELF-ADAPTIVE TO EXTERNAL ENVIRONMENT

A method of power system preventive control candidate measures identification self-adaptive to external environment, which is applicable to dynamic identification of stations and power equipment under the effect of calamity, and judgment of preventive control measures that lose or restore control capability, and those for which control range or cost has changed. Automatic online identification of set of preventive control candidate measures includes two tasks: identification of stations and power equipment under the effect of calamity, and adjustment of the space of preventive control measures. According to information of power transmission line fault probability due to calamity, online dynamic quantitative assessment of stations and equipment is performed under the effect of external environment, and automatically correct control range and control cost of the measures according to the effect on equipment, so that the result of preventive control adapts to real-time external environment, ensuring feasibility and economy of auxiliary decision making. 1. A method of power system preventive control candidate measures identification self-adaptive to external environment , including the following steps:a) collecting a power transmission line fault probability assessment result in a current period of time, a maintenance plan information, an information of equipment of non-scheduled shutdown, and a plurality of candidate control measures set for a normal environment at the control center;b) judging primary equipment that is at an end of maintenance and is put into operation according to information of scheduled maintenance, and adding the primary equipment to the plurality of candidate control measures set;c) adding equipment under an effect of calamity to the plurality of candidate control measures set if fault probability or collective fault probability of the equipment exceeds a certain limit;d) in case line fault probability is identified as exceeding a certain setting ...

Harmonic measurement method and apparatus, variable-frequency drive and storage medium

A harmonic measurement method and apparatus (100), a variable-frequency drive (200) and a storage medium. The harmonic measurement method comprises: acquiring a ripple component of a direct-current bus voltage (S101); acquiring a harmonic component of the direct-current bus voltage according to the ripple component (S102); acquiring a quadrature component of the harmonic component according to the harmonic component (S103); acquiring a characteristic parameter of the harmonic component according to the quadrature component, wherein the characteristic parameter comprises phases (S104); and acquiring the voltage amplitude value of the harmonic component according to the phase of the quadrature component and the phase of the harmonic component, and outputting the voltage amplitude value (S 105). By means of the harmonic measurement method, the voltage amplitude value of a harmonic component in a direct-current bus voltage can be effectively measured according to a sampled direct-current bus voltage, the amount of sampling is small, and a calculation process is simple, such that the load of a processor (203) is low, and it is easy to configure a suitable processor (203).

Performance parameter recording method and apparatus, inverter, air conditioning device, and storage medium

Provided are a method for performance parameter recording and apparatus, a frequency inverter, an air conditioner, and a storage medium. The method includes: obtaining first sampling data by sampling a performance parameter of the frequency inverter based on a first predetermined sampling period (S11); obtaining second sampling data by sampling a performance parameter of the frequency inverter based on a second predetermined sampling period (S12), in which the first predetermined sampling period is smaller than the second predetermined sampling period; and storing, in response to a fault in the frequency inverter, fault data prior to and subsequent to the fault in the frequency inverter, in which the fault data includes the first sampling data and the second sampling data (S13). By using the method, it is possible to analyze a cause of the fault in the frequency inverter conveniently.

Impact tool

An impact tool is less likely to have a shorter service life. An impact tool includes a motor, a spindle, a hammer, an anvil, and a lid. The spindle is rotatable by the motor. The spindle has an opening in a rear end face of the spindle, an internal space extending frontward from the opening and including a first space containing a lubricant oil and a second space connecting to a rear end of the first space, and a first feed port in an outer circumferential surface of the spindle. The hammer surrounds the spindle. The anvil is strikable by the hammer in a rotation direction. The lid is placeable through the opening into the second space. The first feed port allows supply of the lubricant oil from the first space to between the spindle and the hammer.

Method for controlling draught fan, and draught fan device

A method and for controlling a draught fan including: obtaining an actual rotating speed, an actual power, and a target air volume of the draught fan, obtaining a target power corresponding to the target air volume according to the actual rotating speed and the target air volume, obtaining, in response to a power difference value between the actual power and the target power being not within an initial difference value range, a control duration and a rotating speed step size corresponding to the power difference value, and adjusting the actual rotating speed according to the rotating speed step size after the control duration. A dynamic adjustment of the air volume of the draught fan is achieved, and a constant air volume control of the draught fan with low cost, high control accuracy, fast adjustment speed and good stability is achieved.

Fan control method and apparatus, and fan device

A method and an apparatus for controlling a draught fan (204), and a draught fan device (200), by obtaining an actual rotating speed, an actual power, and a target air volume of the draught fan (204), obtaining a target power corresponding to the target air volume according to the actual rotating speed and the target air volume, obtaining, in response to a power difference value between the actual power and the target power being not within an initial difference value range, a control duration and a rotating speed step size corresponding to the power difference value, and adjusting the actual rotating speed according to the rotating speed step size after the control duration, such that the actual rotating speed can be adjusted by a certain control duration and a certain rotating speed step size according to the actual rotating speed, the actual power, and the target air volume of the draught fan without the need of mounting an anemometer and a static pressure sensor, a real-time dynamic adjustment of the air volume of the draught fan (204) is achieved, and a constant air volume control of the draught fan (204) with low cost, high control accuracy, fast adjustment speed and good stability is achieved.

Schlagwerkzeug

Ein Schlagwerkzeug weist weniger wahrscheinlich eine kürzere Lebensdauer auf. Ein Schlagwerkzeug (1) weist einen Motor (6), eine Spindel (8), einen Hammer (47), einen Amboss (10) und einen Deckel (5) auf. Die Spindel (8) ist durch den Motor (6) drehbar. Die Spindel (8) weist eine Öffnung (59) in einer hinteren Endfläche der Spindel (8), einen Innenraum (60), der sich nach vorne von der Öffnung (59) erstreckt und einen ersten Raum (61), der ein Schmieröl enthält, und einen zweiten Raum (62) aufweist, der mit einem hinteren Ende des ersten Raums (61) verbunden ist, und eine erste Zuführungsöffnung (81) in einer Außenumfangsoberfläche (8S) der Spindel (8) auf. Der Hammer (47) umgibt die Spindel (8). Der Amboss (10) ist durch ersten Hammer (47) in einer Drehrichtung schlagbar. Der Deckel (5) ist durch die Öffnung (59) in dem zweiten Raum (62) platzierbar. Die erste Zuführungsöffnung (81) ermöglicht eine Zufuhr des Schmieröls von dem ersten Raum (61) zu zwischen der Spindel (8) und dem Hammer (47).

Method for Harmonic Detection and Apparatus, Frequency Converter, and Storage Medium

A method for harmonic detection includes: acquiring a ripple component of a direct-current bus voltage; acquiring a harmonic component of the direct-current bus voltage based on the ripple component; acquiring a quadrature component of the harmonic component based on the harmonic component; acquiring a characteristic parameter of the harmonic component based on the quadrature component, in which the characteristic parameter includes a phase; and acquiring and outputting a voltage amplitude of the harmonic component based on the quadrature component and the phase of the harmonic component.

一种智能行李箱

本实用新型提供一种智能行李箱。所述的智能行李箱，包括：行李箱本体；所述行李箱本体分别包括自动上下楼梯装置、蓝牙解锁系统、GPS模块以及称重装置；所述行李箱本体内部设置有内置移动电源，所述内置移动电源与所述自动上下楼梯装置、蓝牙解锁系统、GPS模块以及称重装置连接，所述行李箱本体背部安装可隐藏式电动履带，并且可隐藏式电动履带贴合行李箱设置，所述GPS模块设置于所述行李箱本体内部，所述称重装置设置于所述行李箱本体手柄处。本实用新型提供的名称具有在最基本的收纳物品、平地滑动功能外，还具备自动上下楼梯、蓝牙解锁、GPS定位、即时称重、内置移动电源功能，大大方便人们出行。

Fan control method and apparatus, and fan device

Impact tool

An impact tool is less likely to have a shorter service life. An impact tool includes a motor, a spindle, a hammer, an anvil, and a lid. The spindle is rotatable by the motor. The spindle has an opening in a rear end face of the spindle, an internal space extending frontward from the opening and including a first space containing a lubricant oil and a second space connecting to a rear end of the first space, and a first feed port in an outer circumferential surface of the spindle. The hammer surrounds the spindle. The anvil is strikable by the hammer in a rotation direction. The lid is placeable through the opening into the second space. The first feed port allows supply of the lubricant oil from the first space to between the spindle and the hammer.

Control method, control apparatus and control system for eletric motor, and computer-readable storage medium and air conditioner

A control method, control apparatus and control system for an electric motor, and a computer-readable storage medium are provided. The control method for an electric motor includes: acquiring an initial rotation speed and an initial rotation direction of an electric motor; determining a target start mode for the electric motor according to the initial rotation speed and the initial rotation direction; and according to the target start mode, controlling the electric motor to start. A target start mode, which most conforms to an initial rotation speed and an initial rotation speed direction of an electric motor, can be determined from a plurality of preset start modes, so as to control the electric motor to start.

Harmonic measurement method and apparatus, variable-frequency drive and storage medium

Performance parameter recording method and apparatus, inverter, air conditioning device, and storage medium