132results about How to "Strong coupling ability" patented technology

The invention provides a fault diagnosis and pre-warning system in the oil refining production process and an establishment method of the fault diagnosis and pre-warning system. The method comprises the steps of establishing a multilevel flow model in the oil refining production process, determining a fault propagation path, conducting hazard and operability (HAZOP) analysis on the oil refining production process, determining a plurality of static nodes and a plurality of dynamic nodes, determining the connected relation of the static nodes and the dynamic nodes, establishing at least one alternative model, adopting the dynamic Bayesian network structure scoring mechanism for scoring of the alternative models, determining the alternative model with the highest score as a fault multilevel related model, determining the conditional probability relation between the static nodes and the dynamic nodes in the fault multilevel related model, and establishing a fault diagnosis and pre-warning module. The established fault multilevel related model and the fault diagnosis and pre-warning module have the higher fault propagation and fault tracing and reasoning capability, and accurate diagnosis and timely warning of faults generated in the oil refining production process can be achieved.

The invention discloses a variable weight type random scheduling method based on real-time working conditions; the scheduling method optimizes the problem of the dynamic random rescheduling in terms of classification of various perturbation, rescheduling driving mechanism, the construction of rescheduling majorized set, the selection rule of the workpieces to be processed and rescheduling optimization algorithm, classifies various perturbation in the production process into two classes of invisible perturbation and dominant perturbation, adopts corresponding rescheduling driving mechanisms according to different types of perturbation, thus quickly and effectively dealing with various uncertain problems which randomly occur in the production process; the scheduling method is suitable for the mode with a plurality of varieties and single-piece small lot production, can rapidly and effectively handle the various uncertain problems which randomly occur in the production scheduling process and has strong coupling capacity with the real-time working conditions, thus being capable of improving the self-adaptability of a workshop production system to the uncertain working conditions and the agility of production scheduling, reducing unnecessary rescheduling, enhancing reaction capacity to the working conditions and lowering the loss of the production system brought by the various uncertain problems.

The invention relates to a wind power optimal planning modeling method considering the adaptability and economy of a power system. The method comprises following steps: acquiring basic information of the power system; establishing a calculation model; setting the installed capacity, installed areas, power transmission line load rate upper limits of a wind power plant; selecting wind curtailment cost coefficients according to the deflection degree of an object; and working out the model. The power generation cost, power transmission investment and wind curtailment cost of the power system are considered in an objective function, and factors such as system peak regulation and power transmission capacity are also taken into account, so that wind power integration consumption and system investment operation economy of the planning model can reach the equilibrium. Through the solution of the model, the economy and adaptability of a wind power planning scheme can be multi-dimensionally evaluated, and a reasonable wind power construction area, a reasonable wind power construction scale, and an optimal construction scheme and an optimal time sequence for power transmission lines can be obtained, so that decision bases can be provided for wind power planners.

The invention discloses a multi-target dynamic scheduling method for a wind storage hydrothermal power system based on multi-source complementation, and the method comprises the following steps: 1, building a multi-target dynamic economical scheduling model: 1.1, building four optimization targets: take the minimum thermal power coal consumption, the minimum thermal power output adjustment volume, the maximum thermal power generation and the minimum load fluctuation after the thermal power is inputted to a power grid; 1.2, determining the constraint conditions of the four optimization targets; 2, carrying out the weighting and conversion of the four optimization targets, and obtaining a target function F of the multi-target dynamic economical scheduling model; 3, combining with the target function F, and solving the multi-target dynamic economical scheduling model through employing the improved plant growth simulation algorithm. According to the invention, the method gives full consideration to the economical performance and stability of thermal power operation, the utilization rate of the wind power and hydropower and the adjustment effect of a pumped storage power station, and guarantees the economical performance and stability of operation of the thermal power generating unit while promoting the consumption of the wind power.

The invention provides a landslide displacement prediction method based on wavelet transform-rough set-support vector regression (WT-RS-SVR) combination. By means of the method, according to the characteristics of the influence factors of landslide displacement, the complex displacement process and landslide displacement monitor data measured in real time, accumulative displacement of a typical monitor point is decomposed into trend-term displacement and periodic-term displacement through WT, and a trend-term displacement prediction function is obtained through curve fitting; screening is conducted on the influence factors of the landslide displacement through an RS algorithm, and selected factor sets are used as input factor sets of an SVR machine, accordingly a landslide displacement optimization prediction model based on WT-RS-SVR combination is established, and the precision of a prediction result is analyzed and evaluated. The prediction result of the landslide displacement prediction method can well embody the development and change tendency of the landslide displacement. The landslide displacement prediction method has high prediction capacity, and is accurate, effective and practical.

The invention relates to an optimal configuration method for a micro grid, which comprises the following steps: S1, acquiring the topological structure, basic parameters and power generation data of amicro grid; S2, constructing the actual unbalanced power between the output of renewable energy and the load; S3, establishing a water/wind/diesel micro grid double-layer optimal configuration model,wherein the model includes inner and outer optimization models, the outer layer is a multi-objective optimized micro power configuration model, and the inner layer is a micro grid operation model considering uncertainty; S4, transforming a constraint with random variables into a deterministic model; S5, combining an elitist strategy-based non-dominated sorting genetic algorithm and a mixed integer linear programming (ILP) algorithm to solve the double-layer optimal configuration model; and S6, selecting a most satisfactory configuration scheme from a Pareto solution set by using a TOPSIS method. The method of the invention not only improves the robustness of the micro grid, but also ensures the reliability and economy of the configuration scheme and provides technical support for the micro grid planning work.

The invention discloses a hypersonic flight vehicle jumping gliding trajectory analysis and solution method. The hypersonic flight vehicle jumping gliding trajectory analysis solution under the GER coordinate system is converted into the solution of the hypersonic flight vehicle jumping gliding trajectory analysis under the AGI coordinate system; and then the analytic solution under the AGI coordinate system is resloved into a GER coordinate system to obtain a high-precision analytic solution of the longitudinal range, the transverse range, the speed, the height and the trajectory inclinationangle of the hypersonic flight vehicle jumping gliding trajectory, thereby providing support for rapid trajectory planning and trajectory forecasting.

The invention discloses a magnetic leakage corrosion track detector for the inner wall of a pipeline, comprising a battery section, a computer section, a magnetic leakage detection probe section, a location section and an odometer wheel section. The detector is technically characterized in that the magnetic leakage detection probe section comprises an axial magnetic leakage section skeleton with mounting flanges at two ends, a probe bracket is evenly distributed in circumferential direction between the mounting flanges at two ends, and an integrated probe is arranged in the probe bracket; the integrated probe structurally comprises two probes arranged in parallel, each probe is formed by that two sides of the upper part of a strip-shaped yoke are respectively provided with a pair of magnets with opposite polarity, each magnet is orderly provided with an iron liner, a wear-resistant body and a stainless steel substrate spray-welding tungsten carbide hard coating upwards, a sensor box is arranged at the upper middle part of each strip-shaped yoke, and a sensor is cast in each sensor box; the odometer wheel section is of a self-coupling swinging arm type odometer wheel structure, through holes are evenly distributed in circumferential direction of an odometer wheel, an inductive transducer is mounted on a rotating arm, and the induction end of the inductive transducer straightly faces towards the circumferential through holes of the odometer wheel. The structure is particularly suitable for a magnetic leakage detector of a DN219 small-diameter pipeline.

The invention discloses a data stream tracking method. The data stream tracking method comprises the following three stages: in the first stage, customer operating system instructions are disassembled in a static mode, wherein corresponding stain spreading instructions are generated according to a static client x86 instruction, stain data spreading updating operation is conducted, and an internal storage operand physical address which can not be acquired in the static disassembling process is acquired in a dynamic execution process by adopting a shared cache; in the second stage, a host machine execution code is generated through compiling, wherein an executable code on a host machine is generated according to stain instructions in the first stage in the form of a manipulation function so as to facilitate execution of the third stage; in the third stage, a new thread of execution is opened up, wherein the stain instructions are executed and fetched one by one, and the manipulation function of the stain instructions is called. According to the data stream tracking method, stain tracking operation is separated from a simulator dynamic binary translation execution module, so that stain spreading updating based on stain semantic translation and parallelization of an x86 instruction level is realized, useless stain tracking operation is reduced, and interactive experience between a system and a user is improved.

The invention relates to a stator self-excitation synchronous motor with double cage barrier rotors and a control method thereof. The stator self-excitation synchronous motor is characterized in that an inner rotor and an outer rotor are positioned on inner and outer sides of a stator respectively; three-phase symmetry power windings and three-phase symmetry control windings are arranged in grooves on inner and outer surfaces of a stator; the rotors are spliced on the side which is close to the stator along the peripheral direction by using the same cage barrier rotor modules to form a rotor with a salient pole; each cage barrier rotor module is connected with a sleeve by positioning grooves and is provided with a plurality of trapezoid grooves; short-circuit cage bars are put into the trapezoid grooves; a stepped breach is formed in the joint of the adjacent cage barrier rotor modules; and after the adjacent modules are spliced, a public trapezoid groove is formed in the joint of the adjacent modules, the depth of a gap at the bottom of the groove reaches the surface of the sleeve, and public cage bars are put into the grooves. The invention aims to provide the stator self-excitation synchronous motor which is convenient to manufacture, can realize the brushless self-excitation of the stator, is high in power density and steady and dynamic properties and is provided with the double cage barrier rotors.

The invention relates to a compound topical combination drug for treatment of acne and a preparation method thereof. The compound topical combination drug is characterized in that a matrix carrier of the compound topical drug contains the following active components (by weight percent): 0.01-2.5 percent of retinoid acid, 0.2-10 percent of two antibacterial drugs, and 0.01-1 percent of estrogen or1-10 percent of spironolactone. The applied dosage forms are gel, ointment, liniment, film, film coating agent, sprays and the like, and the gels, the ointment, the liniment and the film coating agent are preferred. The preparation method comprises the following steps: dissolving the main drug with a suitable solvent system, adding into the matrix, adding corresponding and necessary auxiliary materials and mixing to obtain the combination drug. The invention has the advantages that: the main drug contains the retinoid acid, two antibacterial drugs, and estrogen or spironolactone, the prescription combination is scientific so as to simultaneously play three or more therapeutic effects (adjusting the sebaceous gland function, resisting keratinization abnormalities, inflammation and microbe,performing like estrogen and the like), and thereby curing the acne more comprehensively and intensively. Humectants such as carbamide is added in the drug so as to reduce side effects such as skin dryness, desquamation, erythema and the like, and no adverse reactions such as stimulus and allergy are caused during animal experiments. The preferred drug dosage forms have strong coupling effect with the skin, are easy to be applied and spread, can not pollute the clothes, and have good patient compliance and accurate clinical therapeutic effect.

The invention provides a semiconductor device and a forming method thereof. The semiconductor device comprises the processes as follows: a multi-layer channel structure in a stack structure is formed at the upper part of a fin of a semiconductor substrate; the channel structure comprises a channel insulating layer and channel layers located on the channel insulating layer; a plurality of drain structures stretching across the multi-layer channel structure are formed at the upper part of the multi-layer channel structure; the plurality of drain structures correspond to a plurality of channel layers one by one; and one drain structure covers the side wall of one channel layer. The structure of the semiconductor device is applied to NAND memories; one channel layer in the multi-layer channel structure is used for forming a memory unit; and the density of the NAND memories can be increased by the stacked channel layer structure under the condition of the same technical dimension, so that the continuous data density increase capacity of the semiconductor device is improved; and the problem of mutual performance interference between the adjacent NAND memories due to the fact that the size of the device is reduced to increase the density of the NAND memories in the prior art is solved.

The invention relates to a synchronous motor, which is characterized in that a set of 2p electrode three-phase armature winding and a set of 2q electrode single-phase excitation winding are placed on a stator, the stator self excitation is realized on the power supply of the excitation winding, a rotor is split into the rotor with the convex electrode form by cage barrier modules in the circumferential direction, each cage barrier rotor module is connected with a sleeve made of non-magnetic conducting materials through a positioning groove, the cage barrier rotor modules are provided with a plurality of radial trapezoidal grooves, each trapezoidal groove is provided with a plurality of different step groove widths in the radial direction, short circuit cage strips are placed into the trapezoidal grooves, the edges of the adjacent cage barrier rotor modules are step-shaped notches, public trapezoidal grooves are formed after the split joint, the gap depth at the bottoms of the grooves reaches the outer surface of the sleeve, and public cage strips are placed into the grooves. The invention aims at providing the novel modularized cage barrier rotor and stator self excitation synchronous motor structure with the advantages that the processing and the manufacture are convenient, and the coupling capability on the two sets of windings of the stator realizes the maximization, so high power density and good steady and dynaic performance are realized.

The invention relates to the technical field of medical equipment, in particular to a portable digital X-ray machine. The machine comprises a combined machine head, a flat panel detector, and terminal equipment which are mutually independent. The combined machine head is used for producing X-rays. The flat panel detector comprises an acquisition module and a wireless sending module which are electrically connected. The acquisition module is used for acquiring the X-rays produced by the combined machine head. The wireless sending module is used for sending the X-rays acquired by the acquisition module. The terminal equipment comprises a wireless receiving module and a display module which are electrically connected. The wireless receiving module is used for receiving X-rays sent by the wireless sending module. The display module is used for displaying the X-rays received by the wireless receiving module. Due to the fact that the combined machine head, the flat panel detector, and the terminal equipment are wirelessly connected and mutually independent, when the portable digital X-ray machine is transported, each of the assemblies can be carried by a single person to a clinic; the transportation convenience of the portable digital X-ray machine is effectively improved.

The invention relates to a lithium ion battery electrolyte capable of improving positive and negative electrode film formation. The electrolyte comprises a non-aqueous organic solvent, a lithium saltand an additive, wherein the additive is 5-cyanothiophene-2-boric acid, the mass fraction of the 5-cyanothiophene-2-boric acid in the battery electrolyte is 0.5-3 percent, the mass fraction of the 5-cyanothiophene-2-boric acid in the battery electrolyte is 1-25, the non-aqueous organic solvent is the combination of at least two of dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, methyl formate, methyl acetate, methyl propionate, ethyl acetate, 1, 3-propane sultone, adiponitrile, succinonitrile, ethylene carbonate and propylene carbonate. There are two lithium salts, one lithium salt is lithium hexafluorophosphate with the molar concentration of 1 mol/L, and the other lithium salt is one of lithium difluorophosphate, lithium difluoroborate, lithium tetrafluoroborate and lithium bis (oxalato) borate. The lithium ion battery electrolyte has the advantages that the film forming performance of the lithium ion battery electrolyte on the surfaces of the positive and negative electrode materials is remarkably improved, and the cycle performance of the lithium ion battery under high voltage is improved.

The invention discloses a wide-speed variable-speed motor with excitation direct-control alternating current-direct current shaft self decoupling. The variable-speed motor is composed of a stator, a rotor, and a permanent magnet. The stator consists of a stator iron core and armature windings; the stator iron core is designed to have an opening groove structure; and the armature windings are arranged in the opening grooves of the stator iron core. The armature windings provide power through an inverter and generate alternating currents with direct-current biases; the armature windings are arranged in a distributed centralized winding manner and each winding winds around stator teeth. The rotor includes a rotor iron core. According to the motor disclosed by the invention, the winding structure is simplified; the direct-current winding and the alternating-current winding of the existing hybrid excitation motor are combined into one set of windings, so that the winding difficulty can be reduced, the space, occupied by the windings, inside the stator can be saved. And reliability and control flexibility of the motor can be improved. Moreover, speed regulation of a motor in a wide rotating speed range can be realized.

The present invention relates to an optical system and an optical method for detecting atmospheric components through non-intuitive imaging. The optical system comprises: a light source for emitting reference light and detection light; a collection lens for collecting the reflection, the scattering and the emitted light of a detected object; a light wave modulation system for carrying out modular automatic modulation on the polarization state of a detected light path; an imaging lens for focusing and imaging the light; a CCD pixel system matched with the light wave modulation system and used for recording the light field intensity change of each pixel by using a dynamic modular scanning method; and a computer processing system. With the system and the method of the present invention, the change of the structure and the components of the detected gas in the space can be real-timely imaged, the sampling errors can be avoided, the image with higher precision and higher repeatability than the image obtained through other methods and the atmospheric component analysis result can be finally obtained, the system does not require the special light source and the chemical device and has the low cost, the measurement process is simple and easy to implement, the system weight is light, and the system and the method is suitable for airborne and aerospace.

The invention relates to a stator double-winding alternating-current motor with double cage barrier rotors. The stator double-winding alternating-current motor is characterized in that an inner rotor and an outer rotor of the motor are positioned on inner and outer sides of a stator respectively; three-phase symmetry power windings and three-phase symmetry control windings are arranged on the inner and outer sides of the stator; the inner rotor and the outer rotor are spliced along the peripheral direction by using the same cage barrier rotor modules to form a rotor with a salient pole; each cage barrier rotor module is connected with a sleeve by positioning grooves and is provided with a plurality of radial trapezoid grooves; short-circuit cage bars are put into the grooves; a stepped breach is formed in the joint of the adjacent cage barrier rotor modules; and after the adjacent modules are spliced, a public trapezoid groove is formed in the joint of the adjacent modules, a gap at the bottom of the groove reaches the surface of the sleeve, and public cage bars are put into the grooves. The invention aims to provide the stator double-winding alternating-current motor which is convenient to manufacture, can maximize the coupling capacity of the power windings and the control windings on two sides of the stator, is high in power density and dynamic property and is provided with the double cage barrier rotors.

The invention provides a multifunctional converter based on dual-DSP. The multifunctional converter comprises a main power circuit and a control circuit. The main power circuit comprises a three-phaseuncontrollable rectifier, a power-on flexible charging loop, a filter circuit, an H-bridge inverter circuit, a three-phase full-bridge inverter circuit and a drive circuit; the control circuit comprises a CPU minimum system, an analog acquisition and conditioning circuit, a discrete magnitude input and output circuit and a position detection and decoding circuit. As for characteristics of a three-level type synchronous motor, an exciter in a starter generator and a main electricity generator can be powered to achieve the starting function of an aero-engine, and meanwhile, the device can powerthe permanent-magnet synchronous motor to achieve the electric drive function of the actuation system on the motor; partial sharing of the main power circuit is achieved, the control circuit partially adopts the dual-DSP and CPLD configured CPU minimum system, according to different instructions, different PWM pulse signals are generated to the drive circuit, and then the inverter circuits are driven to output and power different motors.

The invention provides a preparation method of a bifunctional sulfur-doped cobalt oxide and sulfur, nitrogen and oxygen doped carbon in-situ composite electrode. Electro-deposition and air atmosphereannealing are used to prepare a sheet-like cobalt oxide array in-situ electrode. A forehead fluid containing thiourea and triton is loaded onto the surface of the cobalt oxide array in-situ electrode,dried and then annealed under a protective atmosphere. The product obtained by the technical scheme of the present invention has an excellent dual-function catalytic function of oxygen evolution reaction and oxygen reduction reaction, and owning a variety of high electro-catalytic active sites, including sulfur, nitrogen, oxygen doped active sites in carbon materials, other consequent lattice defects, a strong coupling interface between carbon materials and cobalt oxide, defect sides caused by sulfur-doped cobalt oxide, etc. are constructed. The excellent dual-function electrocatalyst has potential for application to fuel cells and zinc-air batteries.

The invention provides a natural language automatic prediction inference method with interpretation generation. The natural language automatic prediction inference method comprises the following steps: 1, training a variational interpretation generation model; 2, training an interpretation-based logic relationship prediction model; and 3, explaining and generating natural language inference through the variational explaining production model, and carrying out logic relationship prediction through the generated explaining.

The invention discloses an automobile financial risk control method based on internet of things and environmental perception, and relates to the financial field. Particularly, an information center acquires weather condition grade and current road information, and calculates position offset through a preset locking zone; a vehicle-mounted terminal judges according to a vehicle mortgage parameter.If the vehicle type is mortgage vehicle, the vehicle mortgage parameter, the vehicle running condition, and weather condition grade are integrated; the position offset and current road information sending command can perform grading locking control on the vehicle power node. The invention has the beneficial effects that the automobile financial risk control method has the advantages of strong coupling property of a finished automobile, high safety and compatibility of different energy trucks, and others; when the vehicle is performed with grading locking control, the vehicle running condition,weather condition grade, current road information and other factors are considered; on the basis of guaranteeing safety, a set of reasonable remote locking control plan is formulated; on the basis ofguaranteeing the economic efficiency, the function demand of financial risk control to the mortgage vehicle is satisfied.

The invention discloses a method for detecting VOC gas by MOF-coated gold nanoparticle enhanced Raman spectroscopy, and relates to the field of surface enhanced Raman spectroscopy detection. The preparation method comprises the following steps: 1) preparing high-dispersion Au nanoparticle sol with a surface plasmon resonance effect; (2) adjusting the amount of the added metal organic framework compound precursor in the high-dispersion Au nanoparticle sol prepared in the step (1), controlling the reaction time and temperature, and ending the reaction process in an ice bath shock cooling mode to obtain uniform and extremely-thin thickness-adjustable Au nanoparticle sol Au@(MOF) coated with the metal organic framework compound; and (3) preparing the Au@MOF nanoparticle sol obtained in the step (2) into a detection chip, and directly carrying out SERS detection on different VOCs gases with low concentrations. The preparation method is simple, the synthetic raw materials are simple, the particle size of the core gold and the thickness of the shell MOF material are controllable and adjustable, and very small nano gaps can be formed among particles, so that a very strong SERS coupling effect is generated.

The invention discloses a microwave resonant cavity and an electron paramagnetic resonance probe using the same. The microwave resonant cavity comprises a vertically arranged annular sapphire crystaland a metal sleeve which sleeves the annular sapphire crystal, and the metal sleeve is horizontally and annularly provided with a plurality of gaps at equal interval. The electron paramagnetic resonance probe comprises the microwave resonant cavity, a tuning unit fixedly connected with the microwave resonant cavity, and a coupling unit positioned between the tuning unit and the microwave resonantcavity, Helmholtz coils are arranged on the two sides of the microwave resonant cavity respectively, each Helmholtz coil is composed of a horizontally-fixed coil fixing mechanism and an enameled wirecoil wound on the coil fixing mechanism, and the coil fixing mechanisms are made of insulating materials; and the microwave resonant cavity and the Helmholtz coils are sealed in a shell. A special modulation field coupling structure is used, the modulation field coupling capacity is high, and the modulation field conversion efficiency is greatly improved.