Patents
Literature
40results about How to "Guaranteed disturbance" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Relative navigation close range tracking method and system for space noncooperative target capturing
ActiveCN108381553ARealize autonomous relative navigationReal-time plan motion pathProgramme-controlled manipulatorToolsKinematics equationsJoint spaces
The invention provides a relative navigation close range tracking method and system for space noncooperative target capturing. According to the relative navigation close range tracking method and system for space noncooperative target capturing, a kinematical equation of a free-floating space robot system is utilized to deduce and obtain a path planning method for a mechanical arm capturing a moving target, the relative speed and relative posture of the tail end of the mechanical arm and the target are taken as input, joint angle commands controlling the mechanical arm to move can be calculated and obtained, so that capturing operations of the mechanical arm on the moving target can be realized. By means of the relative navigation close range tracking method, in the process of close rangerelative navigation of a space robot on the moving noncooperative target, path planning for the relative position and posture of the tail end of the mechanical arm and the target and continuous inverse kinematics solution from Cartesian space to mechanical arm joint space can be independently realized, and especially for redundant mechanical arms, posture undisturbed planning for a base seat relative to inertial space can be realized.
Owner:BEIJING INST OF SPACECRAFT SYST ENG
Device for installing and recovering micro-vibration sensor in aquiferous weak rock-soil body deep hole
InactiveCN103792569ASolve hard-to-couple problemsAvoid easy installationSeismic signal receiversEngineeringDeep hole
The invention discloses a device for installing and recovering a micro-vibration sensor in an aquiferous weak rock-soil body deep hole. The device comprises a hot galvanizing pipe arranged in a pre-drilled hole, a base arranged at the bottom of the hot galvanizing pipe in a sealed mode, a plurality of detachably-connected operating rods, a sensor base connected with the sensor, an installation sleeve and a recovery sleeve, wherein both the installation sleeve and the recovery sleeve are detachably connected with the operating rods, the base is provided with a base outer stud, a sensor base convex body is arranged on the lateral of the sensor base, the installation sleeve and the recovery sleeve are respectively provided with a sleeve clamping groove, and the bottom of the sensor base is provided with sensor base lower internal threads matched with the base outer stud. Accordingly, the problems that the sensor is difficult to install, protect and recover in the aquiferous weak rock-soil body deep hole are solved.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
Static sounding type deep soil samplers
InactiveCN104975593AEliminate the need for drillingReduce workloadIn situ soil foundationCombined useThin walled
The invention provides two static sounding type deep soil samplers. According to each static sounding type deep soil sampler, a main force bearing shaft is arranged inside a cylinder structure composed of a shell, a sampling tube and a tube shoe, the lower end of the main force bearing shaft is connected with a soil expanding cone head, a steel sheet and an electric ring are arranged between the main force bearing shaft and the shell, and the steel sheet and the elastic ring are clamped in an annular groove. According to the first static sounding type deep soil sampler, the annular groove is formed in the inner surface of the shell, an annular limiting groove is formed in the main force bearing shaft, and the main force bearing shaft is sleeved with an unlocking component composed of a thin-walled pipe and a control bar. According to the second static sounding type deep soil sampler, the annular groove is formed in the main force bearing shaft, an annular limiting groove is formed in the inner surface of the shell, and the main force bearing shaft is sleeved with a thin-walled pipe serving as an unlocking component. The two static sounding type deep soil samplers are used in combination with static sounding penetration equipment, a soil sample buried deep underground can be taken out rapidly under the condition that drilling is not needed; the static sounding type deep soil samplers have the advantages of being simple in structure, convenient and fast to use, capable of saving labor and low in cost; the disturbance of the water pressure on the soil sample can be reduced.
Owner:田庄
Soil remediation system and method based on heterotopic thermal desorption
ActiveCN106862256AThorough repairReduce secondary pollutionContaminated soil reclamationSoil remediationWater flow
The invention discloses a soil remediation system based on heterotopic thermal desorption. The soil remediation system comprises a polluted soil source conveying unit, a soil and stone screening unit, a stone conveying unit, a cleaning pretreatment unit, a cleaning and sediment unit, a heterotopic thermal desorption unit and a clean soil source conveying unit. According to the soil remediation system based on heterotopic thermal desorption, soil is restored more thoroughly through a peculiar smell thermal desorption and chemical cleaning combined mode, and secondary pollution is effectively reduced; disturbance of water flow in a filter screen area is guaranteed in the recovery process of a cleaning fluid recovery module, and the problem that filter screens are likely to be blocked is solved; disturbance on bottom sediments is effectively suppressed through the cleaning fluid recovery module, so that recycled cleaning fluid does not contain soil and impurities.
Owner:国泥工程中心(哈尔滨)有限公司
Fixation device and method for in-situ monitoring of floating plant root system
InactiveCN104982316AReasonable designSimple structureAgriculture gas emission reductionCultivating equipmentsHollow coreRoot system
The invention provides a fixation device and a method for in-situ monitoring of a floating plant root system, which belong to the technical field of plant physiology and ecology. The fixation device comprises a box body, wherein the box body is an opaque hollow column which comprises a top panel, side walls and an opened lower end; the top panel is equipped with at least one root canal hole; and shape and size of the root canal hole are adapted to the shape and the size of a scanner root canal, and the root canal hole is used for insertion of the scanner root canal. The fixation device is used for the in-situ monitoring of the floating plant root system, is simple in structure and convenient in disassembly and assembly, can reduce sampling cost and measurement errors without interfering in normal plant growth or destroying the plant root system, and realizes the automatic, continuous and real-time monitoring of the floating plant root system.
Owner:RES INST OF FORESTRY NEW TECH CHINESE ACAD OF FORESTRY
Plant assisting anti-frost device
The invention discloses a plant assisting anti-frost device which comprises a stand column and a rotary shaft on the top of the stand column. The rotary shaft is connected with an axial flow draught fan through a swing rod hinged to the rotary shaft. A gear box, a motor and a gear box motor output shaft are further arranged on the top of the stand column. The gear box motor output shaft is connected to an upper obtaining power source in the gear box. The gear box motor output shaft is movably connected with the rotary shaft through a transmission shaft. The bottom of the stand column is connected with a lifting device. The lifting device comprises a lifting motor, a motor shaft and a worm. One end of the motor shaft is connected to the output end of the lifting motor. The other end of the motor shaft is connected with the worm. The bottom of the rotary shaft is connected with a lifting shaft core. The bottom of the lifting shaft core is provided with a lifting cam. The lifting cam and the worm are matched and rotate. By means of the plant assisting anti-frost device, the blind area of the anti-frost device is compensated for, the use efficiency of the plant anti-frost system is further improved, and the growth state, the survival rate and quality of plants are increased.
Owner:江苏吟春碧芽股份有限公司
Static sounding type deep soil sampler
The invention provides a soil sampler which can take out a soil sample buried in the deep underground rapidly and is combined with a static sounding injection device under the condition that hole drilling is not carried out. A static sounding type deep soil sampler comprises a shell (6), a sampling barrel (8), a soil expanding cone head (10), a main bearing shaft (4), an elastic ring (9), a steel piece (5), an unlocking component and other structures. The main bearing shaft (4) is provided with an annular limiting groove (12). A self-locking mechanism is formed by the annular limiting groove (12), the steel piece (5) and the elastic ring (9). The soil sampler is suitable for soft soil, generalized clay, floury soil and non-density sandy soil. Compared with traditional hole drilling and sampling, the static sounding type deep soil sampler has the advantages of being simple in structure, convenient to use, rapid, labor-saved and low in cost. The disturbance on the soil sample by the water pressure is greatly lowered when working is carried out below the underground water level, and the soil sampling success rate and the quality of the soil sample can be increased.
Owner:田庄
Soil remediation system and method based on combined technology
ActiveCN106890847AFix lack ofWith stirring functionSoil lifting machinesContaminated soil reclamationSoil remediationWater flow
The invention discloses a soil remediation system based on a combined technology. The soil remediation system comprises a soil source conveying unit, a soil source crushing unit, an iron material adsorption unit, a soil source screening unit, a stone conveying unit, a thermal volatilization unit, a chemical cleaning precipitation unit, a dehydration unit, an air drying unit, a faeces conveying unit, a sterilization and deodorization unit, a soil and fertilizer mixing unit and a clean soil source conveying unit. According to the soil remediation system, the combined technology of physical remediation, chemical remediation and fertilizer adding treatment is adopted, and the problems that soil desertification is severe and nutrients are insufficient are further solved under the condition that soil is sufficiently remediated; a cleaning liquid recycling module has a stirring function as well, so that cost is reduced, and equipment space is decreased; disturbance of waterflow in a filter screen zone is guaranteed during the recycling process of the cleaning liquid recycling module, and the problem that a filter screen is liable to block is solved; and disturbance for bottom sediment is effectively inhibited through the cleaning liquid recycling module, and a recycled cleaning liquid does not contain soil impurities.
Owner:SHAOXING ENVIRONREM ENVIRONMENTAL TECH CO LTD
A fertilizer-enhancing soil remediation system and method
ActiveCN106825021BFix lack ofGuaranteed disturbanceContaminated soil reclamationSoil remediationPre conditioning
The invention discloses a fertility-increasing type soil remediation system which comprises a soil source conveying unit, a micro-biological degradation preprocessing unit, a micro-biological degradation unit, a sediment cleaning unit, a dewatering unit, an excrement conveying unit, a sterilizing and deodorizing unit, a soil fertilizer mixing unit and a remediated soil source conveying unit. According to the invention, the processed excrement is mixed with the processed soil, so as to solve the problems of serious sanding and insufficient nutrient of the soil; a recycling process of a cleaning liquid recycling module can guarantee the water flow disturbance in a filter screen area, so that the problem of easiness in blocking the filter screen can be solved; and the cleaning liquid recycling module can effectively restrain the disturbance of bottom sediment, so that the recycled cleaning liquid contains no soil impurity.
Owner:广州天地林业有限公司
Sliding mode-extended state observer vibration control method based on time delay compensation
PendingCN119644739AReduce difficultyImprove controlSustainable transportationAdaptive controlTime lagVibration control
The invention discloses a sliding mode-extended state observer vibration control method based on time delay compensation in the field of vibration control. The sliding mode-extended state observer vibration control method comprises the following steps: step 1) carrying out novel modeling on a four-side fixed support plate system; 2) designing an extended state observer; 3) designing a sliding mode controller; 4) designing a time delay compensator; and step 5) calculating the control quantity by using the NI-PCIe acquisition card and the Simulink. According to the invention, based on NI-PCIe hardware-in-the-loop platform development, the problems of system time lag, model uncertainty, influence of an inertial actuator and external excitation existing in a four-side fixed support plate are solved, and the total disturbance of the system including internal and external disturbance is estimated through an extended state observer. A content system is simplified into an integral series connection type for control by eliminating total disturbance through feedforward, and a delay compensator based on an enhanced differentiator is introduced to carry out non-delay design on the system, so that the vibration suppression performance of the sliding mode controller is improved.
Owner:GUANGLING COLLEGE YANGZHOU UNIV
Multi-time-lag nonlinear system sliding mode prediction fault-tolerant control method under sensor faults
PendingCN112596507AAvoid falling intoSearch Power BalanceProgramme controlElectric testing/monitoringFault toleranceFlight vehicle
The invention discloses a multi-time-lag nonlinear system sliding mode prediction fault-tolerant control method under sensor faults. In a multi-time-lag non-linear aircraft system with sensor faults,firstly, an augmentation system is constructed for the sensor faults to process the fault quantity, and an equivalent system is obtained; and then a prediction model is constructed by utilizing a quasi-integral sliding mode surface to ensure global robustness. Aiming at system state time lag, input time lag, sensor faults and various disturbance uncertainty, a double-power function reference trackwith novel fault and disturbance compensation is designed, adverse effects of time lag on the system are effectively weakened, and the fault tolerance performance of the system is enhanced. Then an improved inverse time limit chaotic simulated annealing suburb wolf optimization algorithm (ICSACOA) is designed in a rolling optimization part, so that the solving speed and convergence speed of the algorithm are increased. The method is used for robust nonlinear fault-tolerant control of the multi-time-lag nonlinear system with the sensor faults.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Array impact structure based on circular truncated cone and cylindrical protrusion
PendingCN113374546AReduce flow lossTo achieve the purpose of strengthening heat transferMachines/enginesEngine componentsTarget surfaceEngineering
The invention discloses an array impact structure based on a circular truncated cone and cylindrical protrusion, and belongs to the field of engine turbines. The array impact structure comprises an air inlet cavity, an impact plate and an impact target plate, and an array circular truncated cone and cylindrical protrusion and a plurality of air film holes which are arranged on the impact target plate; the circular truncated cone and cylindrical protrusion and impact holes in the impact plate are coaxially and oppositely arranged; the plurality of air film holes are formed in the downstream of the array circular truncated cone and cylindrical protrusion located on the impact target plate along the flow direction; the circular truncated cone and cylindrical protrusion comprises a circular truncated cone and a cylinder; the large end of the circular truncated cone serves as a bottom surface and is fixed to the impact target plate in parallel; and the cylinder is coaxially fixed to the small end face, located above, of the circular truncated cone. Compared with cylindrical protrusion target plate impact cooling, the array impact structure based on the circular truncated cone and cylindrical protrusion disclosed by the invention has the advantages that: the heat exchange of the target surface can be increased to a certain extent; the flow loss is reduced; and the area of a region with stronger heat exchange on the target surface is increased.
Owner:NORTHWESTERN POLYTECHNICAL UNIV +1
A Construction Method for Reinforcement Treatment of Soft Foundation Steel Pipe Pile in Confined Space
ActiveCN105951749BSimple structureEasy to moveBulkheads/pilesDrilling machines and methodsConfined spaceEngineering
The invention discloses a construction method for reinforcement treatment of a soft foundation steel pipe pile in a confined space. By means of the construction method for reinforcement treatment of the soft foundation steel pipe pile in the confined space, construction is easy, convenient and fast. The construction method comprises the following steps of (1) assembly of drilling equipment, (2) drilling operation, (3) cleaning of the steel pipe pile, (4) grouting preparation, (5) grouting operation and (6) forming of the steel pipe pile. By means of the construction method, spatial constraints are avoided, operation is easy and convenient, and secondary disturbance to existing buildings is prevented.
Owner:SINOHYDRO BUREAU 14 CO LTD
Plant anti-frosting method
The invention discloses a plant anti-frosting method. The plant anti-frosting method comprises main anti-frosting devices and auxiliary anti-frosting devices. The main anti-frosting devices and the auxiliary anti-frosting devices each comprise a vertical column and an axial flow fan arranged on the top of the vertical column to provide wind power. The height of the axial flow fans of the main anti-frosting devices ranges from 6 m to 15 m, and the height of the auxiliary anti-frosting devices ranges from 4 m to 6 m. The transverse horizontal distance between the two main anti-frosting devices ranges from 10 m to 25 m. It is guaranteed that the height difference H1 between the vertical columns of the auxiliary anti-frosting device and the main anti-frosting devices ranges from 5 m to 10 m. Meanwhile, the auxiliary anti-frosting devices have the lifting amplitude with the height difference of H1, airflow within the height range of 1 m to 5 m can be disturbed, then the effect of the plant anti-frosting system is enhanced, and the influence degree of the anti-frosting effect of the plant anti-frosting method on plants is improved. It is guaranteed that airflow within the 5 m range of the fans and at the 3 m height around the range can be disturbed. Anti-frosting blind regions are eliminated. In addition, the plant anti-frosting effect is improved, the growth vigor and quality of the plants are improved, and the survival rate of the plants is increased.
Owner:山东天汇光年无人机科技有限公司
A deep hole installation and recovery device for microseismic sensors in water-containing soft rock and soil
InactiveCN103792569BSolve hard-to-couple problemsAvoid easy installationSeismic signal receiversEngineeringDeep hole
The invention discloses a device for installing and recovering a micro-vibration sensor in an aquiferous weak rock-soil body deep hole. The device comprises a hot galvanizing pipe arranged in a pre-drilled hole, a base arranged at the bottom of the hot galvanizing pipe in a sealed mode, a plurality of detachably-connected operating rods, a sensor base connected with the sensor, an installation sleeve and a recovery sleeve, wherein both the installation sleeve and the recovery sleeve are detachably connected with the operating rods, the base is provided with a base outer stud, a sensor base convex body is arranged on the lateral of the sensor base, the installation sleeve and the recovery sleeve are respectively provided with a sleeve clamping groove, and the bottom of the sensor base is provided with sensor base lower internal threads matched with the base outer stud. Accordingly, the problems that the sensor is difficult to install, protect and recover in the aquiferous weak rock-soil body deep hole are solved.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
A soil remediation system and method
ActiveCN106862253BFix lack ofGuaranteed disturbanceContaminated soil reclamationSoil remediationSoil mixing
Owner:厦门康浩生态农业有限公司
Rotary grate device for organic solid waste
PendingCN114075458AComposition fluctuates greatlyImprove burnout rateGasification processes detailsFixed-bed gasificationSyngasThermodynamics
The invention discloses a rotary grate device for organic solid waste. A furnace wall is arranged outside a hearth, a material inlet is formed in the top of the hearth, a smoke / synthesis gas outlet is formed in one side of the top of the hearth, a grate base is arranged at the bottom of the hearth, a rotary grate is arranged on the grate base, and a rotary ash discharging knife with an adjustable angle is arranged between the lower side of the rotary grate and the furnace wall; a slag falling opening is formed in the grate base, an ash tray is arranged between the lower portion of the grate base and the furnace wall, and a water-cooling slag discharging hopper is arranged in the center of the ash tray, and an opening is formed in the center of the grate base, extends downwards and is connected with an ash outlet formed in the outer portion of the furnace wall, and pivotal bearings are arranged among the grate base, the ash tray and the water-cooling slag discharging hopper. The rotary grate device is suitable for the organic solid waste which has the characteristics of large component fluctuation and difficult burn-off, and ensures that the organic solid waste has higher burn-off rate.
Owner:XI AN JIAOTONG UNIV
A fat-removing surgical device
ActiveCN109730751BImprove efficiencyEasily brokenIncision instrumentsSuction devicesLiposuctionEngineering
The invention discloses a surgical apparatus for taking out fat, and relates to the field of liposuction appliances. The surgical apparatus comprises a needle drum, a piston is slidably connected to the interior of the needle drum, a core rod connected with the piston is inserted in one end of the needle drum, a needle tube is fixedly connected to the other end of the needle drum, a steel wire isarranged at the free end of the needle tube, and the two ends of the steel wire are fixedly connected to the inner side wall of the needle tube. According to the surgical apparatus, the steel wire isutilized for cutting the fat, the fat is cut up, and thus the resistance of liposuction is small.
Owner:JIMIN HEALTH MANAGEMENT CO LTD
Undisturbed soil sampler
The invention provides an undisturbed soil sampler. The undisturbed soil sampler comprises a vertical separator plate and two semicircular drilling pipes having an edge, a circle soil retaining plateis fixed at the bottom of the vertical separator plate, an internal diameter of the semicircular drilling pipes is greater than a diameter of the circle soil retaining plate by 1-3 mm, a first supporting seat and a second supporting seat are respectively arranged at two sides of the vertical separator plate, same semicircular grooves are respectively arranged on the first supporting seat and the second supporting seat close to one side of the vertical separator plate along a vertical direction, the semicircular groove is greater than the diameter of the circle soil retaining plate, the first supporting seat is welded with the vertical separator plate, and the vertical separator plate and the second supporting seat are cooperated with hooks through hanging slots, so that a groove which is concentric with the soil retaining plate is formed by two semicircular grooves. The undisturbed soil sampler uses cooperation of the semicircular drilling pipes having the edge and the soil retaining plate, a complete soil sample can be kept while sampling, the original soil sample after observation and testing is restored, and the destroy of the soil sampler on lawn is reduced.
Owner:BEIJING FORESTRY UNIVERSITY
Motor and its control method
ActiveCN109599992BDoes not affect rotationPrevent axial movementMagnetic circuit stationary partsStructural associationElectric machineEngineering
Owner:浙江江宇电机有限公司
Plant Auxiliary Anti-Frost Device
The invention discloses a plant assisting anti-frost device which comprises a stand column and a rotary shaft on the top of the stand column. The rotary shaft is connected with an axial flow draught fan through a swing rod hinged to the rotary shaft. A gear box, a motor and a gear box motor output shaft are further arranged on the top of the stand column. The gear box motor output shaft is connected to an upper obtaining power source in the gear box. The gear box motor output shaft is movably connected with the rotary shaft through a transmission shaft. The bottom of the stand column is connected with a lifting device. The lifting device comprises a lifting motor, a motor shaft and a worm. One end of the motor shaft is connected to the output end of the lifting motor. The other end of the motor shaft is connected with the worm. The bottom of the rotary shaft is connected with a lifting shaft core. The bottom of the lifting shaft core is provided with a lifting cam. The lifting cam and the worm are matched and rotate. By means of the plant assisting anti-frost device, the blind area of the anti-frost device is compensated for, the use efficiency of the plant anti-frost system is further improved, and the growth state, the survival rate and quality of plants are increased.
Owner:江苏吟春碧芽股份有限公司
Motor and control method thereof
ActiveCN109599992ADoes not affect rotationPrevent axial movementMagnetic circuit stationary partsStructural associationPower flowDisplacement control
The invention provides a motor and a control method thereof. The motor comprises a shell, a stator and a rotor, wherein the stator is arranged in the shell, the rotor is arranged at a radial inner side of the stator, the shell is provided with a rear end cover, a shaft end groove is formed in the rear end cover, the rotor is provided with an output shaft, a rear end of the output shaft is insertedinto the shaft end groove, the motor also comprises a play-prevention device and a play detection device, the play-prevention device is provided with an electromagnet and a permanent magnet, the electromagnet is arranged at the bottom of the shaft end groove, the permanent magnet is arranged at a rear end of the output shaft, and the play detection device is configured to detect displacement between a real-time position and an initial position of the output shaft and control the size and the direction of a current of the electromagnet according to the displacement so as to further control thesize of an acting force between the electromagnet and the permanent magnet and maintain the output shaft at the initial position. When axial display occurs in the output shaft, the current supplied to the electromagnet is controlled, the permanent magnet is pushed to drive the output shaft to move towards an opposite direction of an axial play direction, axial play is generated, and the rotationof the output shaft cannot be affected.
Owner:浙江江宇电机有限公司
Motor and its control method
ActiveCN109412336BDoes not affect rotationPrevent axial movementWindings insulation shape/form/constructionMagnetic circuit stationary partsAxial displacementClassical mechanics
The invention provides a motor and a control method thereof. The motor comprises a shell, a stator and a rotor, wherein the stator is arranged in the shell; the rotor is arranged at the radial inner side of the stator; the shell is provided with a rear end cover and a shaft end groove is arranged in the rear end cover; the rotor is provided with an output shaft and the rear end of the output shaftis inserted into the shaft end groove; the motor further comprises a displacement preventing device provided with a primary and a secondary and a displacement detecting device; the primary is arranged on the peripheral wall of the shaft end groove and the secondary is arranged on the rear end of the output shaft; and the displacement detecting device is used for detecting the displacement betweenthe real-time position and the initial position of the output shaft so as to control the primary according to the displacement and keep the output shaft at the initial position. The motor has the advantages that by means of the displacement detecting device and the displacement preventing device, when the axial displacement of the output shaft is detected by the displacement detecting device, a current supplied to the primary is controlled and the like to drive the output shaft to move towards the opposite direction of the axial displacement direction by the secondary, so that the axial displacement is prevented, and in particular, the rotation of the output shaft is not affected.
Owner:浙江江宇电机有限公司
A kind of plant anti-frost method
The invention discloses a plant anti-frosting method. The plant anti-frosting method comprises main anti-frosting devices and auxiliary anti-frosting devices. The main anti-frosting devices and the auxiliary anti-frosting devices each comprise a vertical column and an axial flow fan arranged on the top of the vertical column to provide wind power. The height of the axial flow fans of the main anti-frosting devices ranges from 6 m to 15 m, and the height of the auxiliary anti-frosting devices ranges from 4 m to 6 m. The transverse horizontal distance between the two main anti-frosting devices ranges from 10 m to 25 m. It is guaranteed that the height difference H1 between the vertical columns of the auxiliary anti-frosting device and the main anti-frosting devices ranges from 5 m to 10 m. Meanwhile, the auxiliary anti-frosting devices have the lifting amplitude with the height difference of H1, airflow within the height range of 1 m to 5 m can be disturbed, then the effect of the plant anti-frosting system is enhanced, and the influence degree of the anti-frosting effect of the plant anti-frosting method on plants is improved. It is guaranteed that airflow within the 5 m range of the fans and at the 3 m height around the range can be disturbed. Anti-frosting blind regions are eliminated. In addition, the plant anti-frosting effect is improved, the growth vigor and quality of the plants are improved, and the survival rate of the plants is increased.
Owner:山东天汇光年无人机科技有限公司
A dance shoe for different foot widths
ActiveCN110226799BSolve the problem of buying dancing shoes that are not suitable for the width of your feetGuaranteed disturbanceSolesActivated carbonShoe laces
The invention discloses a dancing shoe suitable for different foot widths. Each shoe comprises a shoe body. The outer surface of the shoe body is fixedly connected with the connecting layer. The connecting layer and the stretching layer are fixedly connected. A front heel and a rear heel are respectively arranged on the front side and the rear side of the stretching layer. An anti-abrasion pad isarranged at a welt of the shoe body. A plurality of shoelace holes are formed in the middle of the shoe body. An activated carbon adsorption layer and a warm-keeping layer are arranged in the shoe body. The warm-keeping layer is fixedly connected with the shoe body. The stretching layer comprises a containing layer and a soft rubber layer. A stretching device composed of a connecting plate, a connecting rod, a rotating block, a spring and other elements is arranged in an inner cavity. An accommodating layer is arranged on the sole. Rotating plates are arranged in the accommodating layer. The rotating plates are rotatably connected with the bulges in the accommodating layer. The rotating plates are rotatably connected with one another. A screw block with a slot is arranged in the soft rubber layer. The rotating plates rotate to adjust the width of the sole under the transmission action of the connecting rod and the rotating block, so that the dancing shoe can be suitable for different foot widths.
Owner:章文春
A soil remediation system and method based on microbial degradation
ActiveCN106825036BThorough repairReduce secondary pollutionContaminated soil reclamationSoil remediationWater flow
Owner:安徽省通源环境节能股份有限公司
Medical instrument for tumor needle biopsy
ActiveCN119138936Aguaranteed disturbanceavoid damageSurgical needlesVaccination/ovulation diagnosticsAspiration biopsyCatheter
The invention discloses a medical instrument for tumor needle biopsy, and relates to the technical field of medical diagnostic instruments, the medical instrument for tumor needle biopsy comprises a handheld cylinder, and the front end of the handheld cylinder is detachably connected with a catheter through a bolt. In the process of performing tumor needle biopsy operation by using the medical instrument for tumor needle biopsy, when the insertion length of the puncture needle is increased, the force storage effect on the puncture needle is synchronously increased through transmission, so that the puncture needle can normally puncture to a specified position, normal needle biopsy operation is ensured, and on the contrary, the puncture needle can normally puncture to the specified position. When the insertion length of the puncture needle is reduced, the force storage effect on the puncture needle is synchronously reduced through the same transmission principle, so that the damage to peripheral tissues of a puncture position and the disturbance to tumor tissues are further reduced; the force storage effect of the puncture needle in the needle biopsy process can be adaptively adjusted and controlled according to the puncture length of the puncture needle, and the needle biopsy effect is guaranteed.
Owner:AFFILIATED HOSPITAL OF INNER MONGOLIA MEDICAL UNIV (INNER MONGOLIA AUTONOMOUS REGION CARDIOVASCULAR INST)
Rotary grate device
PendingCN114075459AComposition fluctuates greatlyImprove burnout rateGasification processes detailsFixed-bed gasificationPhysicsDrive motor
The invention discloses a rotary grate device, which is characterized in that a grate is arranged in a furnace wall, an ash knife is arranged on the furnace wall and located on the lower side of the grate, an ash discharging opening is formed in the bottom of the grate and connected with an ash falling hopper, an ash tray is arranged between the lower portion of the grate and the furnace wall, and the grate drives the ash tray and a grate gear to rotate through a driving motor. The rotary grate device is suitable for the organic solid waste which has the characteristics of large component fluctuation and difficult burnout, and ensures that the organic solid waste has a relatively high burnout rate; and meanwhile, by adjusting the deslagging speed, it is ensured that organic solid waste has enough standing time in the furnace, and the burn-off rate of the organic solid waste on the rotary grate is effectively increased by increasing stirring of the grate.
Owner:XI AN JIAOTONG UNIV
A Relative Navigation Close-Range Tracking Method and System for Space Non-cooperative Target Capture
ActiveCN108381553BRealize autonomous relative navigationReal-time plan motion pathProgramme-controlled manipulatorToolsKinematics equationsTarget capture
A relative navigation short-distance tracking method and system for non-cooperative target capture in space. Using the kinematic equations of a free-floating space robot system, a path planning method for a manipulator to capture a moving target is derived. The distance between the end of the manipulator and the target The relative velocity and relative attitude are input, and the joint angle command to control the movement of the manipulator can be calculated, so that the manipulator can realize the capture operation of the moving target. Through this method, in the short-range relative navigation process of the space robot to the moving non-cooperative target, the path planning of the relative position and attitude between the end of the manipulator and the target can be realized autonomously, and the continuous inverse kinematics from the Cartesian space to the joint space of the manipulator Solving, especially for redundant manipulators, enables disturbance-free planning of the attitude of the base relative to inertial space.
Owner:BEIJING INST OF SPACECRAFT SYST ENG
Fixture and method for in situ monitoring of floating plant roots
InactiveCN104982316BReasonable designSimple structureMaterial analysis by optical meansAgriculture gas emission reductionGrowth plantPlant roots
The invention provides a fixation device and a method for in-situ monitoring of a floating plant root system, which belong to the technical field of plant physiology and ecology. The fixation device comprises a box body, wherein the box body is an opaque hollow column which comprises a top panel, side walls and an opened lower end; the top panel is equipped with at least one root canal hole; and shape and size of the root canal hole are adapted to the shape and the size of a scanner root canal, and the root canal hole is used for insertion of the scanner root canal. The fixation device is used for the in-situ monitoring of the floating plant root system, is simple in structure and convenient in disassembly and assembly, can reduce sampling cost and measurement errors without interfering in normal plant growth or destroying the plant root system, and realizes the automatic, continuous and real-time monitoring of the floating plant root system.
Owner:RES INST OF FORESTRY NEW TECH CHINESE ACAD OF FORESTRY