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47results about How to "Convenient inclination" patented technology

Determining method of photovoltaic transmission power limit considering variable correlation

The invention discloses a determining method of photovoltaic transmission power limit considering variable correlation. According to the method, a random planning problem is built, the photovoltaic transmission power limit maximization is set as a target function, the correlation inside a photovoltaic power station, the correlation between region loads and the correlation of the photovoltaic power generation and the node load change are considered, the constraint conditions are inspected through the sampling on the photovoltaic power output, the traditional machine unit power output and the load level on the basis of a Latin hypercube sampling method, finally, an improved bacterial foraging algorithm is used for solving a planning problem, and the photovoltaic transmission power limit conforming to the conditions is calculated. The method provided by the method has the advantages that the problem of potential safety hazard after the photovoltaic network accessing since the photovoltaic transmission power limit does not conform to the actual production practice is solved, the planning work of the photovoltaic power station can be better guided, the sampling coverage rate is increased, the calculation quantity is reduced under the condition of not influencing the precision, the early stage optimization speed is accelerated, and meanwhile, the later stage optimization precision is also ensured.
Owner:SOUTHEAST UNIV

Coal seam floor limestone confined aquifer grouting reinforcement transformation method

InactiveCN111042831AHigh compressive strengthSafe and environmentally friendly miningUnderground chambersTunnel liningMining engineeringDrill site
The invention relates to the technical field of coal mine water disaster prevention and control, and provides a coal seam floor limestone confined aquifer grouting reinforcement transformation method.The method comprises the steps that a coal seam floor limestone confined aquifer grouting reinforcement transformation engineering scheme is designed, the grouting reinforcement transformation rangeis determined, then the drill hole plane position is designed according to a grid method, and drill holes are evenly distributed; the drill holes are evenly distributed in a drill site in an umbrellashape, and the design direction of the drill holes is perpendicular to or obliquely intersects with the development direction of a fracture structure and a crack; then drilling and grouting engineering construction is carried out, one drill site is arranged for the same gate road for drilling and grouting work, one drilling and grouting device is arranged for the same drill site, drilling and grouting continuous operation is carried out, grouting should be carried out immediately after one drill hole is constructed, and then another drill hole is constructed; and finally, the grouting effect is checked and evaluated. According to the method, through grouting reinforcement transformation of a coal seam floor limestone confined aquifer, safe, environment-friendly, high-quality and efficientmining of a fully mechanized coal mining face threatened by water damage of the coal seam floor limestone confined aquifer is achieved.
Owner:BEIZHING LONGRUAN TEKNOLODZHIS INK

Mathematics teaching board with dust collection function

The invention provides a mathematics teaching board with a dust collection function. The mathematics teaching board comprises a support plate, wherein a height adjusting device is arranged at the lower side of the support plate, the height adjusting device comprises a support post, the bottom end of the support post is fixedly connected with the upper side of a base, a groove with an upward opening is formed in the support post, a lower movable block is arranged in the groove, the section of the lower movable block is in the shape of a right trapezoid, the oblique plane of the lower movable block faces the upward direction, movable rods are fixedly connected to two sides of the lower movable block, a movable through hole is formed in the left side of the support post, the movable rod on the left side is positioned inside the movable through hole, and the movable rod on the right side is connected with a drive device. The mathematics teaching board has the beneficial effects that the drive device drives the lower movable block to move towards the right side, the lower movable block enables an upper movable block to move upwards through a rolling wheel and a rolling wheel bracket, and thus a fixing post drives the increase of the height of the support plate; when the drive device enables the lower movable block to move towards the left side, the fall of the upper movable block isrealized.
Owner:XIAN UNIV OF SCI & TECH

Three-dimensional memory and preparation method thereof

The invention provides a three-dimensional memory and a preparation method thereof. The preparation method comprises the following steps: providing a substrate, and forming a first stacking structureon the stacking surface of the substrate; etching the first stacked structure to form a first sub-channel hole penetrating through the first stacked structure; etching the first stacking structure onone side of the first sub-channel hole to form a first sub-gate gap penetrating through the first stacking structure; forming a second stacking structure on one surface, deviating from the substrate,of the first stacking structure; etching the second stacking structure at the position, aligned with the first sub-channel hole, of the second stacking structure to form a second sub-channel hole penetrating through the second stacking structure; and etching the second stacked structure at a position, aligned with the first sub-gate gap, of the second stacked structure to form a second sub-gate gap penetrating through the second stacked structure. The preparation method provided by the invention solves the problem that the electrical performance and yield of the three-dimensional memory are influenced due to high gate gap stacking height, serious inclination risk and easy generation of leakage current in an etching process in the prior art.
Owner:YANGTZE MEMORY TECH CO LTD

Blowing dust removing device for plastic particles

The invention discloses a blowing dust removing device for plastic particles. The blowing dust removing device for the plastic particles comprises a dust removing frame, wherein a guide bin is arranged at the middle position of the dust removing frame, a recovery tank is arranged at the bottom side wall position of the dust removing frame, the guide bin is inclined, the lower end of the guide binis arranged above the recovery tank, and a feeding bin is arranged at the upper end of the guide bin; a blowing dust removing mechanism is arranged at the inner top position of the dust removing frame, the blowing dust removing mechanism comprises an air inlet shell and an air pump, wherein the air inlet shell is arranged at the inner top position of the dust removing frame, the air pump is arranged at the top position of the dust removing frame, and the air pump is connected with the air inlet shell through an air inlet pipe; a movement adjusting mechanism is arranged at the middle part of the air inlet shell, a plurality of blowing pipes are arranged on the movement adjusting mechanism, and the middle parts of the blowing pipes are arranged on the movement adjusting mechanism. The blowing dust removing device provided by the invention can adjust the blowing pipes, so that the blowing pipes are adjusted to be inclined, and the plastic particles in the guide bin are blown forwards through the blowing pipe, so the blowing efficiency of the plastic particles is greatly improved.
Owner:姜聪

Thermal treatment method for rare earth nickel based AB5 type hydrogen storage alloy

InactiveCN101429636AEliminate and improve composition segregationEliminates and improves compositional uniformityRare earthElectrochemistry
The invention relates to a thermal processing method for rare earth nickel base AB5 type hydrogen storage alloy for the negative electrode of a nickel hydrogen cell. A staged thermal processing method using low-temperature treatment before high-temperature treatment is adopted for the rare earth nickel base AB5 type hydrogen storage alloy in the inert or reducing atmosphere after smelting and casing the rare earth nickel base AB5 type hydrogen storage alloy into ingots. The staged thermal processing method comprises the following steps: firstly keeping the rare earth nickel base AB5 type hydrogen storage alloy within the temperature range of 400 to 800 DEG C for 2 to 5 hours; and then increasing the temperature to 950 to 1100 DEG C and keeping the rare earth nickel base AB5 type hydrogen storage alloy for 0.3 to 5 hours. The staged thermal processing of the rare earth nickel base AB5 type hydrogen storage alloy can remove and improve the component segregation, the lattice stress and the lattice distortion of the hydrogen storage alloy without the merging and growing of the crystal grains of the alloy, thereby improving the anti-atomization capability of the alloy, improving the gradient of the P-C-T curve of the hydrogen storage alloy, reducing the platform pressure, improving the hydrogen absorption and desorption amount, the electrochemical content and the cycle life of the alloy, and consequently truly improving the electrochemical performance and the cycle life of the cell.
Owner:BYD CO LTD

Vehicle-mounted mobile phone holder convenient for angle adjustment

The invention discloses a vehicle-mounted mobile phone holder convenient for angle adjustment, the vehicle-mounted mobile phone holder comprises a pedestal, a fixing frame is arranged on the pedestal,the fixing frame is a portal bracket, the middle part of the fixing frame is provided with a first lead screw shaft, a bearing block arranged at the middle position of the top of the fixing frame issleeved with an upper top end of the first lead screw shaft, the pedestal is provided with a first lead screw shaft driving mechanism, the first lead screw shaft is externally sleeved with a verticalsleeve, the vertical sleeve penetrates through the top of the fixing frame and is mounted on a support bearing arranged at the top of the fixing frame through sleeving, a bottom end of the vertical sleeve is provided with a first lead screw casing, the first lead screw shaft is sleeved with the first lead screw casing, the top end of the vertical sleeve is provided with a cabinet, and the top of the cabinet is sleeved with a second lead screw shaft. The invention provides the vehicle-mounted mobile phone holder convenient for angle adjustment, the vehicle-mounted mobile phone holder is ingenious in structure setting and rational in arrangement, the vehicle-mounted mobile phone holder realizes adjustment of altitude and angle of inclination and is convenient to adjust, moreover, a mobile phone support frame fixes a mobile phone firmly.
Owner:江苏南京国家农业高新技术产业示范区发展集团有限公司

Connection structure of stone curtain wall mould board

ActiveCN107090929AOvercoming the drawbacks that only apply to facadesEasy to installWallsClimate change adaptationEngineeringBuilding construction
The invention provides a connection structure of a stone curtain wall mould board. The connection structure includes a stone line, a stand column, connection assembly arranged between the stone line and the stand column, wherein the connection assembly comprises a first connection component and a second connection component, and the first connection component is mounted on the upper portion of the stone line and the stand column, and meanwhile, the second connection component is arranged on the lower portion of the stone line and the stand column; the first connection component comprises an L-shaped semicircular base, a semicircular cover and an L-shaped pendant with a circular tip; one end of the L-shaped semicircular base is connected to the L-shaped pendant with the circular tip, and the other end of the L-shaped semicircular base is connected with a first cross girder connected with the stand column, and meanwhile, the upper portion of the L-shaped pendant with the circular tip is connected to the semicircular cover; the second connection component is composed of an L-shaped base with a circular tip and an L-shaped semicircular pendant, and one end of the L-shaped base with the circular tip is connected with the L-shaped semicircular pendant, and meanwhile, the other end is connected with a second cross girder which is connected to the stand column. The connection structure of the stone curtain wall mould board has the advantages of being simple in structure, scientific and convenient, and providing high pertinence and convenience for construction, and is capable of completing installation of stone boards in different angles by adopting a sort of connection component.
Owner:ZHEJIANG YASHA CURTAIN WALL

All-terrain robot control method and all-terrain robot

The invention discloses an all-terrain robot control method and an all-terrain robot. The method comprises the steps that A, the gravity center height of the robot is increased to conduct spanning when the channel state is that the robot can be lifted to span a channel, and the gravity center height of the robot is reduced until the robot passes through the channel when the channel state is that the robot can be lowered to pass through the channel; B, when the pitch angle of a robot body continuously exceeds the allowable range of the pitch angle of the robot body within the time T1, the gravity center height of the robot is increased to enter a pitch angle protection mode; C, the target height difference of the two sides of the robot is obtained through the current rolling angle and the target rolling angle, and the height difference of the two sides of supporting mechanisms on the two sides of the robot is adjusted to be equal to the target height difference; and D, when the robot makes a turn, the transverse target offset of the gravity center of the robot towards the turning side is obtained according to the current linear speed and the current angular speed, and the heights of the supporting mechanisms on the two sides of the robot are adjusted so that the transverse offset of the gravity center of the robot towards the turning side can be equal to the transverse target offset. The motion stability of the robot is improved by adjusting the gravity center height and the gravity center offset distance of the robot.
Owner:行星算力(深圳)科技有限公司

Method for setting boundary constraint distance value of boundary constraint spraying track planning

The invention discloses a method for setting a boundary constraint distance value of boundary constraint spraying track planning. The method comprises the following steps: constructing a dynamic spraying model of a spray gun along an arc path based on an established spray gun pose-variable static spraying model; defining a boundary constraint distance by taking the minimum allowable coating thickness at the boundary of a workpiece as a requirement, and illustrating the influence rules of the curvature radius, the spraying height and the spraying inclination angle of a boundary curve on the boundary constraint distance; and setting a unified boundary constraint distance value according to the boundary curve shape of the surface of the to-be-sprayed workpiece to ensure that the coating thickness quality of the boundary meets the requirements everywhere. The boundary constraint distance value can be quickly set when the boundary constraint spraying track is planned in an offline programming mode, then the boundary constraint spraying track is planned on the surface of the to-be-sprayed workpiece, the spraying speed, the spraying height and the inclination angle in the spraying processare optimized, and the spraying quality, the spraying efficiency and the coating utilization rate can be improved at the same time.
Owner:YANCHENG INST OF TECH

Horizontal mobile paper feeding device for paper feeding machine

The invention discloses a horizontal mobile paper feeding device for a paper feeding machine. The device comprises a rack, a driven roller is arranged on the rack, and a drive roller is arranged on the rack; a driven gear is arranged at the outer end of the drive roller, a motor base is arranged on the inner bottom of the rack, and a driving motor is arranged on the motor base; a driving shaft isarranged on the front portion of the driving motor, a driving gear is arranged on the peripheral surface of the driving shaft in a sleeving mode, a transmission gear is arranged on the rack, and the driving gear, the transmission gear and the driven gear are mutually meshed; an air blowing shell is arranged on the shell, an air pump is arranged on the top of the air blowing shell, and a pluralityof air blowing needles and infrared heating pipe groups are arranged on the lower portion of the air blowing shell; a fourth mounting shaft is arranged on the rack, a first rotation adjustment pipe isarranged on the peripheral surface of the fourth mounting shaft in a sleeving mode, and the first rotation adjustment pipe is connected with the upper portion of one side of the air blowing shell. According to the horizontal mobile paper feeding device for the paper feeding machine, paper of the paper feeding machine can be conveyed through a conveying belt; the air pump provides an air source for the air blowing shell, and paper on the conveying belt can be quickly blown and conveyed through the air blowing needles.
Owner:浙江智霖机械有限公司

A determination method of photovoltaic penetration power limit considering variable correlation

The invention discloses a determining method of photovoltaic transmission power limit considering variable correlation. According to the method, a random planning problem is built, the photovoltaic transmission power limit maximization is set as a target function, the correlation inside a photovoltaic power station, the correlation between region loads and the correlation of the photovoltaic power generation and the node load change are considered, the constraint conditions are inspected through the sampling on the photovoltaic power output, the traditional machine unit power output and the load level on the basis of a Latin hypercube sampling method, finally, an improved bacterial foraging algorithm is used for solving a planning problem, and the photovoltaic transmission power limit conforming to the conditions is calculated. The method provided by the method has the advantages that the problem of potential safety hazard after the photovoltaic network accessing since the photovoltaic transmission power limit does not conform to the actual production practice is solved, the planning work of the photovoltaic power station can be better guided, the sampling coverage rate is increased, the calculation quantity is reduced under the condition of not influencing the precision, the early stage optimization speed is accelerated, and meanwhile, the later stage optimization precision is also ensured.
Owner:SOUTHEAST UNIV
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