87results about How to "Solve the control puzzle" patented technology

A master-slave control flexible continuum robot device and a control method thereof belong to the technical field of robots. The master-slave control flexible continuum robot device comprises a control arm, a mechanical arm and a control system. The mechanical arm is a trunk simulative flexible arm and achieves bending through a plurality of screw-driven flexible rods. A system enables the mechanical arm to complete the same actions by simulating the control actions of operators on the control arm, and therefore simple and visual control on the mechanical arm is achieved. The master-slave control flexible continuum robot device achieves visual master-slave control by aid of the characteristic that the control arm is similar to the mechanical arm and by combining the sensor and the controller; controls the mechanical arm through the scaled-down control arm; effectively reduces the control difficulty and is applicable to remote control operation. In addition, the master-slave control flexible continuum robot device can bend, extend and contract in multiple directions, has unique grabbing, operating and obstacle evading functions, and has a wide application prospect.

The invention discloses an electrode material of a lithium-ion battery and a preparation method thereof. The electrode material is lithium iron phosphate (LiFePO4) with the surface coated with nano-copper and is prepared by using the following method: water solution of ferrous phosphate and lithium phosphate is evenly mixed according to a chemical formula, and is added with a stabilizer OP-10 water solution for mixing and stirring, the mixed solution is controlled at a certain temperature for precipitation, and then the precipitate is filtered, rinsed and aired. Heat treatment is carried out for an aired precursor obtained from the previous step at high temperature, therefore a lithium iron phosphate semi-finished product is obtained. The problem of the imperfect particle size of the lithium iron phosphate is solved by controlling the process conditions. Copper nitrate solution is mixed with the lithium iron phosphate semi-finished product and is added with vitamin C for reducing to obtain the copper; metal copper is evenly clad on the surface of the lithium iron phosphate particles. The preparation method has simple operational procedure; the lithium-ion battery anode material of the prepared lithium-ion battery electrode material has high ionic conductivity and electron conductivity, the 1C initial specific capacity is not less than 162mAh / g and the lC tap density is not less than 1.5g / cm<3>.

The invention discloses a spiral acceleration-type electromagnetic gun system and an obtaining method of the spiral acceleration-type electromagnetic gun system. The spiral acceleration-type electromagnetic gun system comprises a spiral-type superconductive electromagnetic boosting subsystem, a high-temperature superconductive magnetic suspension subsystem and a superconductive magnetic confinement subsystem. An electromagnetic gun boosting process is carried out in a spiral acceleration mode through the spiral-type superconductive electromagnetic boosting subsystem and the requirement for impulse power of a boosting system is lowered; a superconductive magnetic suspension technology is adopted in the high-temperature superconductive magnetic suspension subsystem for eliminating mechanical friction, so that ablation of a projectile body and a gun barrel is avoided; high centrifugal force generated because the spiral radius is small in the acceleration process of the projectile body is overcome by the superconductive magnetic confinement subsystem according to a superconductive magnetic confinement technology; heat-dissipation-free design of the gun barrel is achieved by the electromagnetic gun system according to the electrical-resistance-free characteristic of a superconductive material, and therefore the high-firing-speed continuous firing capacity is achieved. According to the spiral acceleration-type electromagnetic gun system, the spiral gun barrel and the spiral acceleration mode of the projectile body are adopted, so that high outlet speed is easy to achieve; no mechanical friction and ablation influence on the gun barrel exists in the whole firing process and the gun barrel can be used for a long time; active control over a boosting coil is not needed and the problem that a traditional halved joint electromagnetic gun is difficult to control is solved; forced cooling and heat-dissipating waiting do not needed to be conducted on the gun barrel in the process of continuous firing and the continuous firing capacity of the spiral acceleration-type electromagnetic gun system is far higher than that of the traditional electromagnetic gun.

The present invention provides a canard configuration missile general structure with a roll and despun stabilizing function, comprising a front section (1) and a rear section (2); and the front section (1) and the rear section (2) are connected by a roll and despun stabilizing device. The canard configuration missile general structure divides a missile into the front section and the rear section,a canard system is mounted at the front section, the rear section rotates around the longitudinal axis by an inclined tail under the aerodynamic action, and the front section realizes the roll stabilizing by the roll and despun stabilizing control, which solves the roll channel control problem caused by the canard wash of the canard configuration missile. At that same time, for the canard system,only pitch motion control and yaw motion control are needed and can be realized only by two sets of motor servo systems, so that the design of the canard system is greatly simplified, and the requirement for the structure space and the development cost are reduced. A guidance assembly is installed in the front section of the despun stabilized missile body, so that the disadvantageous influence oflarge roll angular velocity on the system stable imaging is avoided.

The invention belongs to the field of manufacturing porous silicon carbide ceramic and provides a manufacturing method of a gradient porous silicon carbide ceramic tube. The manufacturing method includes: using a sintered porous SiC ceramic tube as a base material, and coating the inner side or the outer side of the sintered porous SiC ceramic tube with graphite paper; placing the sintered porous SiC ceramic tube in a chemical gas-phase permeation furnace for gas-phase growing; adopting MTS as a precursor in the chemical gas-phase permeation furnace, enabling MTS to be in chemical gas-phase permeation reaction in a gas phase of the chemical gas-phase permeation furnace to generate a SiC phase, and enabling the SiC phase to gradually permeate into the sintered porous SiC ceramic tube from one side without being coated with the graphite paper to form the gradient porous silicon carbide ceramic tube with porosity and pore size gradiently decreasing from one side without being coated with the graphite paper to one side coated with the graphite paper. The gradient porous silicon carbide ceramic tube has the advantages of low preparation temperature, simple preparation process and easiness in manufacturing large pipe fittings.

The invention discloses a conductive liquid micro driving device and applications thereof. Multiple rectangular coils form a coil array, multiple sequentially-arranged electromagnetic poles are formed, insulation layers are arranged among wires of the rectangular coils, magnetic conductive layers fills gaps of the wires of the rectangular coils coated by the insulation layers and the outer parts, a sealing cover realizes functions of three protection and mechanics and the like, inverters are connected with the rectangular coil array, a time-varying electric field generates a traveling wave magnetic field in the same direction and an electromagnetic force, the electromagnetic force drives the conductive liquid to flow, a flexible substrate can be connected with a selected mounting part, and a pipeline inner wall or an outer wall phase in a different shape can be matched. Accurate control on different components, the flow amount, the flow direction and the flow speed of the conductive liquid can be realized, and the conductive liquid micro driving device has the advantages that the overall structure is compact; the device is flexible and deformable; pressed driving does not exist; no push rod mechanism is needed; the pipeline can be cleaned by itself; assembly and disassembly are convenient; the space utilization rate is high; the application range is wide; the use is simple; portability is realized; the noise is small; the service life is long and the like.

The invention relates to a sliding-pressure operation unit optimizing control method in an automatic gain control (AGC) mode, and the method has the advantages of simplicity, effective reduction of oscillation occurrence, economic efficiency of unit operation and the like. The method comprises the following steps: 1) filtering load setting after load is set; 2) setting an ideal sliding-pressure curve according to the best efficiency points of throttling and circulating efficiencies; 3) realizing automatic optimizing of sliding-pressure setting by utilizing a pure integral module of proportion integration differentiation (PID); 4) increasing a high-low limit module after a pressure setting velocity is limited so as to prevent a pressure setting value from exceeding the range permitted by unit safety operation; and 5) manually setting the load setting by operators when the AGC is not carried out, wherein the load is prevented from small oscillation, corresponding pressure setting is prevented from small oscillation, and pressure setting in logics is switched to an operation bypass.

The invention relates to a self-adaptation control method for an electric vehicle for uncertain barycenter and unknown input saturation. The method comprises the following steps: 1) establishing a mathematical model for an electric vehicle system containing uncertain barycenter and longitudinal sliding / lateral sliding; 2) using a smooth functional approximation executor for saturating, considering an executor fault and applying to a state space expression; 3) designing and outputting a limited robust adaptive controller for controlling a motion track of the electric vehicle. According to the invention, the uncertain influence caused by the uncertain barycenter of the electric vehicle can be coped with; the control problem caused by the uncertain barycenter can be solved; the unknown executor nonlinear saturated characteristics can be smartly treated; the control problem caused by the asymmetrical saturation can be solved; when the executor is in fault, the electric vehicle still can move along the expected track; the motion track of geometric center position of the electric vehicle can be limited within a track scope which is given in advance, and meanwhile, the design steps of the controller are simplified and the controller is user-friendly.

The present invention discloses a device and an implementation method for the intelligent control of media delivery on a cloud platform. The device is characterized by comprising a cloud management module, an android control module, a projector module and a projection display module. The cloud management module adopts a cloud terminal to realize the media editing of advertisement materials and the setting of scheduling schemes. The android control module is used for receiving an instruction from the cloud terminal, playing the content, controlling the on / off state of a projector, and projecting a video onto a glass window with a holographic film attached thereon. In this way, the effect of displaying the advertisement video in the double-sided form can be realized. Based on the cloud-terminal management scheme provided in the invention, the problems in the prior art that the current window advertising content is single in form, tedious in content update and complicated in remote batch management can be solved. Therefore, the carousel of multiple advertisements and multiple pictures is realized. The advertisement replacement cost is reduced, and the advertising media content is rich. The advertisement playing effect is improved.

The invention discloses a common-frequency vibration torque inhabitation control method based on a cross decoupling wave-trapping method. Firstly, a double-input double-output coupling control systemin the magnetic levitation rotor torsion direction is converted into a single-input single-output complex coefficient system through complex coefficient replacement, then a real number field common-frequency wave trap is popularized and applied to the complex coefficient system, the stability of the system is analyzed, and finally a common-frequency vibration torque controller under a complex field is converted to an achievement form under a real number field. Compared with a transitional real coefficient wave trap system, the operation complexity of the real coefficient wave trap system is simplified by adopting the method, and stability and robustness analysis of the coupling control system are facilitated.

The invention provides a smelting furnace. The smelting furnace comprises refractory materials, heat insulating materials, a blower, a pipeline, valves, ignition devices, fuel supply devices and temperature measuring devices. The smelting furnace is characterized in that a furnace chamber is provided with a heating chamber and a smelting chamber; the lower part of the heating chamber is communicated with the smelting chamber; the lower part of the smelting chamber is provided with a hearth; the hearth is provided with hearth discharge holes; the upper part of the heating chamber is provided with a heating chamber feeding hole and a heating chamber gas outlet; at least a flame path is arranged around the inner wall of the smelting chamber; at least an inlet channel is arranged on the side walls of the flame paths; and the inlet channels are communicated with the flame paths. The smelting furnace is energy-saving and environment-friendly, can be used for smelting various metals and alloys, can be used for smelting aluminium by a fire method and can be used for refining aluminium alloys. The smelting furnace can adopt any mineral for smelting, can realize carbothermal reduction of any metallic oxide and can smelt alloys even with soil or garbage, so the smelting furnace can turn stone and soil into gold and is true alchemy. The smelting furnace dispenses with cokes and synchronously completes ironmaking and steelmaking. The heat generated through steelmaking is fully utilized and the waste gases are unitedly treated. The smelting furnace can be used for producing glass, ceramic frits, sodium silicate and the like. The smelting furnace can adopt various materials, can refine precious elements, does not produce slag and can bring metallurgy revolution.

The invention provides a machining method of a thrust face of a quenched crankshaft of a forging steel fillet. The machining method comprises the following steps of: (1) rough turning; (2) finish turning; (3) thermal treatment; (4) finish turning, namely 1) measuring before the finish turning, and determining the machining amount of a finish turning process of a rear thrust face, namely measuring an axial size L' from a rear oil seal end face of the crankshaft to the rear thrust face by taking the rear oil seal end face of the crankshaft as the benchmark, and determining the finish turning mounting amount b of the rear thrust face; 2) performing finish turning on a machined part, namely the rear thrust face to ensure that the finish turning machining amount is b, and the left finish grinding machining amount a of the rear thrust face is 0.2+ / -0.05mm; 3) measuring the width between the rear thrust face after the finish turning and a front thrust face before the finish turning, and determining the finish turning machining amount of the front thrust face; and 4) performing finish turning on the front thrust face to ensure that the left finish grinding machining amount c is 0.2+ / -0.05mm, namely when the width between the front and rear thrust faces after finish grinding is H, and when the front and rear thrust faces after the finish turning of the step is H', H-H'=a+c; and (5) performing finish grinding to ensure that the width between the front and rear thrust faces is H.

The invention relates to the field of steel blank treatment processes, in particular to a method for reducing the hydrogen content of steel blanks; the method preferably solves the control demands ofthe hydrogen content in steel and the hydrogen content control problem; the steel blanks are stacked layer by layer from bottom to top; the steel blanks on the same layer are arranged in parallel; thesteel blanks on the upper and lower adjacent layers are perpendicularly arranged; and gaps are formed between the adjacent steel blanks on the same layer. The method skillfully designs the steel blanks in the layer-by-layer stacking mode; and under the condition of not changing traditional equipment and conditions, hydrogen of casting blanks is preferably emitted within a certain temperature andtime range by using the hydrogen emission principle in the casting blank stacking mode of the steel blanks to achieve the purpose of reducing the hydrogen content in the casting blanks. The method issimple, easy to operate and lower in investment, and preferably solves the control difficulty of the hydrogen content in the steel blanks. The method is particularly suitable for processes of reducingthe hydrogen contents in the steel blanks.

The invention discloses a parameter self-tuning MISO (Multiple Input and Single Output) different-factor tight-format model-free control method. In view of the limitation of the existing MISO tight-format model-free control method adopting the same factor structure, that is, the limitation of only adopting penalty factors with the same value and step-size factors with the same value for differentcontrol inputs in a control input vector at a k moment, an MISO tight-format model-free control method by adopting a different factor structure is provided, penalty factors with different values and / or step-size factors with different values can be adopted for different control inputs in the control input vector at the k moment, and the control problem of different characteristics of control channels existing in a complex object such as a strong nonlinear MISO system can be solved. A parameter self-tuning method is also provided to effectively overcome the problem that penalty factors and step-size factors need to consume time and labor for tuning. Compared with the existing control method, the method of the invention is higher in control accuracy, better in stability and wider in applicability.

The invention discloses a multifunctional unmanned aerial vehicle. The unmanned aerial vehicle includes a support and rack system, a power system, a control system, a sensing system, a visual positioning system, a pan-tilt system, a remote control system and a virtual display system. A flight control system includes a system controller, a sub-controller, a wireless switch, a power supply, a control circuit, a memory and a cooler. The multifunctional unmanned aerial vehicle solves the difficult problem of controlling over unmanned aerial vehicle, through the design of the system controller, thesub-controller and the wireless switch, the stability of flight of the unmanned aerial vehicle and the quality of image collection are greatly improved, and better communication quality is further ensured.

The invention relates to a capacitor voltage fluctuation suppression method of a modular multi-level converter under a low frequency and a low voltage. Under unbalanced control, an upper bridge arm and a lower bridge arm take turns; and one bridge arm mainly outputs an alternating-current voltage and an alternating current and the other bridge arm mainly outputs a direct-current voltage instead of an alternating current. On the basis of alternate switching, the module capacitor voltage difference of the three-phase upper and lower bridge arms can be suppressed well. With the method, a problem that the module capacitor voltage fluctuation is too large at the low frequency band when the modular multi-level converter is used for driving the motor can be solved; and thus a negative effect on a load due to a high-frequency injection method can be eliminated. According to the method, changing of a hardware circuit is not required; the low-frequency-band working performance of the modular multi-level converter can be improved substantially; the application range in the industry is wide; and practicability is high.

The invention discloses an elastic connection support rod structure with a two-way action, which comprises a regulation screw thread, a spring sleeve barrel, a precompression spring, a sleeve barrel cover and a center rod; both ends of the center rod are respectively connected with two spherical hinges, the middle part of the center rod is provided with the spring sleeve barrel, the precompression spring is arranged in the spring sleeve barrel, the outer side of one end of the spring sleeve barrel is disconnected with the center rod connected with the hinges, one section of center rod connected with the hinges is provided with the regulation screw thread, and the length of the center rod can be regulated. The regulation amplitude of the length of the center rod is preferably 1-20cm. The elastic sway rod has the characteristic of a pull and press two-way action. When external pulling force is greater than the precompression force of the spring, the support rod is stretched until the residual compression quantity of the precompression spring completely disappears. When external pressure is greater than the precompression force of the spring, the support rod is shortened until a reserved clearance value completely disappears. The clearance value can be regulated, and the magnitude of the clearance value is estimated and determined according to the maximum turning resistance of moving components connected at both ends of the support connecting rod under different movement conditions.

The invention discloses a server BIOS automatic refreshing and version control method and relates to the field of server production and manufacturing. For the problem in server BIOS refreshing and version control, a program automatically judges and refreshes a corresponding BIOS file in a production process, and automatically compares whether a refreshed version is correct or not according to a version number and custom information during check. Compared with the prior art, the method has the advantages that the server BIOS automatic refreshing and version control are realized, manual operations and possible human errors are reduced, the production efficiency is improved, and the product quality is ensured.

The invention discloses a decoupling coordination method for realizing optimal target control based on voltage reactive decoupling criteria. The decoupling coordination method comprises the following steps: using the formula that V2=V20-delta VQ-delta VP as a decoupling control model to construct V-IQ three-dimensional decoupling coordination control criterion; performing reactive compensation regulation according to delta VQ criterion, and performing the adjustment of real-time no-load voltage according to V20 criterion; using the linear characteristics of the combined criterion V2+delta VQ and V2+delta VP to form a V-IQ nine-area or multi-area coordination characteristic model required for establishing a two-dimensional control strategy and form a three-dimensional comprehensive coordination model capable of visually showing real-time status data; determining an optimal regulation amount in real time by quantifying an optimal target model in a three-dimensional control target domain and using an optimal regulation amount algorithm; and using a predicated formula of V-IQ criterion to predict the regulation effect and variation trend of V-IQ. The method enables VQC to realize labor division cooperation and accurate coordination of voltage regulation and reactive compensation, so that the operational reliability and the efficiency of putting into operation are improved, and the optimal target control and visual control are realized.

The invention discloses a dual-voltage emergency starting power supply with an isolation-communication automatic switching technology, which is characterized in that a starting clamp is connected to abattery of a vehicle to be started, a main control system receives a transmitted voltage signal of the in-vehicle battery, whether a connection polarity relation between the starting clamp and the in-vehicle battery is correct or not is judged according to the voltage signal, work instruction are sent to a first branch control system and a second branch control system respectively through a firstisolation-communication circuit and a second isolation-communication circuit if the connection polarity relation is correct; the first branch control system and the second branch control system respectively read corresponding battery pack states and send the battery pack states to master control system respectively through the first isolation-communication circuit and the second isolation-communication circuit; and the master control system determines whether the corresponding battery packs have an over-temperature, low voltage, overvoltage and charging state or not based on the battery packstates, if not, adjusts switch-on and off of an automatic change-over switching circuit according to the voltage signal of the in-vehicle battery to control series-parallel connection of the first battery pack and the second battery pack so as to output operating voltage corresponding to the in-vehicle battery to assist the start of the vehicle.

The invention discloses a wind field self-adaptive adjustment device and method for near space aerostat. The device comprises a wind direction measuring module, a flight control computer and an actuating mechanism, wherein the wind direction measuring module is mounted on an aerostat body and is used for measuring the angle difference between the incoming flow direction and the direction of the aerostat body and outputting the angle difference; the flight control computer communicates with the wind direction measuring module, is used for receiving the angle difference, calculates actuation control data required by the aerostat to navigate towards wind according to the angle difference and outputs the actuation control data; the actuating mechanism is mounted on the aerostat body, communicates with the flight control computer, is used for receiving the actuation control data and controls itself according to the actuation control data to enable the course of the aerostat to deflect for a certain angle, so that self-adaptive adjustment of the aerostat navigating towards the wind. Area flight of the near space aerostat can be realized without accurate measurement of the real-time wind direction and wind speed of a wind field.

The invention relates to the field of building construction, in particular to a construction method for a C type stock ground upper structure. The construction method is characterized by comprising the following steps of 1, construction preparation; 2, construction partitioning; 3, middle retaining wall construction; 4, transverse partition wall construction; 5, longitudinal low wall construction;6, concrete curing. According to the construction method, the C type stock ground retaining wall upper structure is partitioned in the plane direction, partitioning partition block jump warehouse construction is adopted, segmentation is carried out in the height direction, the retaining wall upper structure form is fully used for designing a steel frame large formwork and steel bearing frame construction method, the problem of the crack control of the retaining wall upper structure is effectively solved, the construction quality is guaranteed, the construction efficiency is improved, and thesafety and the reliability are achieved.

The invention discloses a novel normally closed braking device which is characterized in that a piston is mounted in a housing, a left oil cavity and a right oil cavity are formed in the housing, the oilway of the left oil cavity is connected with a main oil control crossing, and the oilway of the right oil cavity is connected with a check valve and a hydraulic control one-way valve respectively; outer threads are arranged at one end of the piston and are connected with the inner threads in the centre hole at one end of a brake block, the other end of the piston is tightly pressed with a disc spring group, and the disc spring group is sleeved and mounted with disc spring protection cover; the hydraulic control one-way valve is mounted on the housing through bolts, and the built-in spring and valve of the check valve are mounted in the oil inlet in the housing; the device provided by the invention is multifunctional, high in integration level, small in size, simple in structure, and convenient to maintain, has a short journey and big braking force, is capable of implementing braking efficiently, safely and reliably, solves the problem of pulley braking system controlling, and is suitable for popularization and application in various vertical and horizontal braking system.

An electromagnetic valve resistant to oil pollution comprises a valve body, a first steel ball, a first valve, a first electromagnet, a second steel ball, a second valve, a second electromagnet and the like, wherein the second electromagnet is vertically installed on a support, the support is installed on the upper portion of a shell body, the valve body is installed on the lower portion of the shell body, the support is provided with an inner hole, and a balance weight is installed in the inner hole of the support and can vertically move in the hole; the first electromagnet is installed and fixed to the side portion of the valve body; a piston is installed in the shell body, and piston rods are installed at the upper end and the lower end of the piston; the lower end of an iron core of the second electromagnet is connected together with the piston rod on the upper portion of the piston, the piston rod on the lower portion of the piston is installed in the central inner hole in the lower portion of the shell body, the lower end of the piston rod on the lower portion of the piston is connected together with the upper portion of a valve element, the piston in the shell body can move to drive the valve element and the balance weight to move at the same time, and the piston is installed in an inner cavity of the shell body. The electromagnetic valve has electromagnetic, hydraulic and manual multi-input control functions, is high in integration level and anti-pollution capacity, simple in structure and convenient to maintain, and can safely and reliably implement multi-mode combined control.

The invention discloses detection equipment of a control system of a concrete mixing plant and relates to the engineering machinery technical field. The detection equipment of the control system of the concrete mixing plant solves the technical problem in the prior art that comprehensive detection cannot be conducted on the control system of the concrete mixing plant. The detection equipment of the control system of the concrete mixing plant comprises a framework, a liquid storage pipeline, a liquid storage pool, at least one measuring hopper, at least one diversion trench, at least two solution hoppers and indicator lamps. Control valves are arranged in respective liquid outlets of the liquid storage pipeline, the measuring hoppers and the solution hoppers. Circuits of the control system of the concrete mixing plant for outputting control signals of a mixing host is electrically connected with the indicator lamps. Circuits of the control system of the concrete mixing plant for outputting the control signals of control valves and circuits of the control system of the concrete mixing plant for outputting control signals of a material conveying motor are electrically connected with the various control valves, and capable of controlling states of the control valves. The detection equipment of the control system of the concrete mixing plant can detect the control system of the concrete mixing plant in a comprehensive mode.

The invention discloses a flywheel turbine which comprises a casing, a fuel system, an ignition system and a starting system, wherein the casing is provided with a flywheel shaft by a rotating device; the flywheel shaft is connected with the starting system; a flywheel is at least arranged on the flywheel shaft; a gas mixing chamber is arranged on the flywheel; a gas mixing chamber air inlet is arranged at the axial part of the gas mixing chamber; a gas mixing chamber air outlet is arranged on the periphery of the gas mixing chamber; the fuel system is arranged corresponding to the gas mixing chamber air inlet; a combustion chamber and a gas spraying chamber are at least arranged on the periphery of the flywheel; the ignition system is arranged corresponding to the combustion chamber which is provided with a combustion chamber air inlet and a combustion chamber air outlet; the combustion chamber air inlet is communicated with the gas mixing chamber air outlet; the combustion chamber air outlet is communicated with the gas spraying chamber; the area of the cross section of the combustion chamber air outlet is smaller than that of the maximum cross section of the combustion chamber; an inner cavity of the gas spraying chamber is expanded towards an opening in the direction of the outer edge of the flywheel; and an inclined angle is formed between the central axis of the gas spraying chamber and the radius of the flywheel. According to the flywheel turbine, by using the circular motion and the fluid motion, the fuel can be combusted more sufficiently, the energy can be converted more sufficiently and the structure is more simplified.

The invention discloses a moisture content measuring system based on a parallel spiral telescopic time domain reflection probe. The system comprises a time domain reflection probe, an insulation converter, a flexible cylinder and a time domain reflection signal generation collector. The time domain reflection probe comprises a positive electrode probe and at least one negative electrode probe. Thepositive electrode probe and the negative electrode probe are spirally arranged on the inner side wall of the flexible cylinder in parallel. The arranged time domain reflection probe at least accounts for 90% of the height of the flexible cylinder, and the positive electrode probe and the negative electrode probe penetrate through the insulation converter and are connected with the time domain reflection signal generator through coaxial cables. The scheme can be used for nondestructive real-time measurement of the moisture content of frozen soil, natural gas hydrate-containing soil, sandy soil, silt, clay, loess, special soil, rock and other samples in a triaxial shear test. The system not only guarantees the measurement effect of the moisture content of the sample, but also avoids the influence on the triaxial shear test data of the sample, and has a wide application prospect in the triaxial shear test of unsaturated soil and natural gas hydrate-containing soil samples.

The invention discloses a self-adaptive help thread pre-fetch quality control method, and belongs to the technical field of multi-core cache performance optimization. The method can be used for improve the quality of help thread pre-fetch in irregular data intensive applications. Real-time online self-adaptive regulation of a help thread pre-fetch control parameter value can be achieved through the techniques such dynamic sampling, program operation stage detection, pre-fetch gain feedback, and self-adaptive regulation, and then the control quality of help thread pre-fetch can be improved. The method mainly includes the following steps: 1) dynamic information acquisition and feedback statistics; 2) index calculation; and 3) self-adaptive pre-fetch control. The method fully utilizes hardware information of a multi-core platform to achieve real-time pre-fetch control of a help thread, can be widely applied to access performance optimization, help thread pre-fetch quality control and sharing cache pollution control of the irregular data intensive applications in a current big data environment.