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328results about How to "Improve mobility" patented technology

Fiber foamed concrete and preparation method thereof

InactiveCN106866177AIncrease the degree of mixingHigh compressive strengthCeramicwareFiberFoam concrete
The invention discloses a fiber foamed concrete and a preparation method thereof. The fiber foamed concrete comprises the following raw materials in parts by weight: 5290 parts of cement, 4965 parts of water, 1.361 part of foaming solution, 1.2964 part of fly ash and 10 parts of fiber. The preparation method comprises the following steps: proportionally weighing the components; sequentially adding the cement and fly ash into a stirrer, proportionally weighing the water, uniformly stirring the mixture by the stirrer, and adding the fiber; preparing and adding the foaming solution; gradually adding the foam into the mixture, and continuously stirring until all the components are uniformly mixed; pouring the mixture into a mold on which lubricating oil is brushed, and curing in a curing chamber; after 24 hours, removing the mold; and respectively curing for 3 days, 7 days and 28 days for experimental detection. The fiber foamed concrete has the advantages of favorable thermal insulation property, favorable compression resistance and favorable bending resistance, and is applicable to a railway bed strengthening layer.
Owner:SHIJIAZHUANG TIEDAO UNIV

Three-dimensional face editing method and system based on neural radiance field decoupling

ActiveCN115719413BRealize decoupling controlImprove mobility
The application provides a three-dimensional face editing and system based on neural radiance field decoupling, which performs geometric editing on a three-dimensional face through a semantic mask according to random noise, performs three-dimensional consistent style migration on a material in a case where a reference image is given, and finally outputs a three-dimensional face that can be locally geometrically edited and overall style edited, so as to solve the problems of low generation quality, difficult training, difficult geometric control, difficult material decoupling control and ineffective style migration of the prior art.
Owner:INST OF COMPUTING TECH CHINESE ACAD OF SCI

Integrated nodal compliant mechanism of rope-driven active metamorphic topology

The application provides a kind of integrated node flexible variable mechanism of rope drive active deformation topology structure, it is related to flexible deformation device technical field, control is realized to large-span deformable structure by using rope drive, structural weight is reduced, and the operating performance of flexible deformation body mechanism is improved.The shortening of first winding makes the radius of annular framework larger;The shortening of second winding makes the length of annular framework longer;Between the first annular framework and the second annular framework, the first winding on the first annular framework is arranged on the first node on the second annular framework, and the second winding on the first annular framework is arranged on the first node on the second annular framework to realize active turning, which can reduce the stress applied to the mechanism by the outside when the pipeline moves, help protect the flexible structure, improve the system use time, and better adapt to complex terrain space scenarios, actively adjust the travel speed and direction to select the optimal path to improve work efficiency.
Owner:BEIHANG UNIV

A purification system having a mobile towed base

ActiveCN224412765UFlexible moving processReduce difficulty of movementClassical mechanicsStructural engineering
The present disclosure relates to the technical field of water treatment and purification equipment, and one embodiment of the present disclosure provides a purification system with a mobile dragging base, which comprises an integrated purification equipment main body and a stable base, the integrated purification equipment main body is arranged on the surface of the stable base, a pulling assembly is arranged at the front end of the stable base, a supporting and stabilizing assembly is arranged on both sides of the stable base, and a rolling assembly is arranged at the bottom of the stable base, wherein the rolling assembly comprises a bottom groove which is arranged on the bottom surface of the stable base, a pair of shaft seats are arranged in the bottom groove, a steering seat is rotatably connected to each of the shaft seats, and a pair of moving rollers are rotatably connected to the steering seat. Through the above technical scheme, the technical problem that the integrated water treatment and purification equipment is generally compact, large in size and heavy in weight, and once the position of the equipment needs to be adjusted, great difficulties will be encountered is solved.
Owner:HEBEI GN SOLIDS CONTROL CO LTD +1

Low small steering wheel structure

The utility model discloses a low and small-sized steering wheel structure which comprises a bearing plate, a containing groove is formed in the upper surface of the bearing plate, and a driving wheel capable of intruding into the containing groove and a walking motor controlling the driving wheel are arranged on the lower surface of the bearing plate. The driving wheel part is arranged in the containing groove of the bearing plate, meanwhile, the steering motor is installed on the bottom face of the bearing plate, so that the whole steering wheel structure is more compact in the height direction, the overall height of the steering wheel is reduced, and the steering wheel is suitable for occasions with strict limitation on the height, such as a submerged AGV; moreover, even if large bearing capacity needs to be provided, the structure can guarantee the lower height of the AGV steering wheel driving device, and the characteristics of low height and compactness of the AGV steering wheel driving device are not affected.
Owner:AUTOMOTIVE ENGINEERING CORPORATION +1

Synthesis method and application of non-fused ring electron acceptor

PendingCN121949276Aappropriate atomic radiusincrease overlapOrganic chemistryPhotovoltaic energy generationOrganic solar cellChemical physics
The invention discloses a synthesis method and application of a non-condensed ring electron acceptor, which are different from a traditional condensed ring structure or a single alkyl chain side chain, and a dichlorobenzene unit is introduced as a conformation regulating group. As chlorine atoms have strong electronegativity and proper atomic radius, remarkable non-covalent interaction such as Cl-S and Cl-pi can be generated among molecules. The interaction is similar to a set of precise molecular guide rails, molecules are guided to perform highly ordered pi-pi accumulation, so that electron cloud overlapping is remarkably enhanced, and an efficient electron transmission channel is constructed. According to the organic solar cell prepared based on the non-condensed ring electron acceptor material designed by the invention, the electron mobility is remarkably improved, and meanwhile, the charge recombination loss of a device is effectively reduced.
Owner:CHANGZHOU UNIV +1

Pipeline detection robot capable of actively turning and jumping to avoid obstacles by medium thrust

The utility model discloses a pipeline detection robot capable of actively turning and jumping to avoid obstacles by means of medium thrust, relates to the field of pipeline robots, and aims to provide a pipeline detection robot which is low in energy consumption and convenient to move and turn. The pipeline detection robot comprises a robot body, a steering control mechanism and a bouncing system are arranged on the robot body, the steering control mechanism is connected with an umbrella-shaped structure through a steering frame, the umbrella-shaped structure comprises a lead screw driving motor, the lead screw driving motor drives a lead screw to rotate, and the bouncing system drives the lead screw to rotate. A lead screw is arranged on the robot body, a middle sliding block is arranged on the lead screw, an umbrella support short rod is movably connected to the middle sliding block, an umbrella support rod is hinged to the umbrella support short rod, an umbrella wrapping skin is arranged on the umbrella support rod, and the bouncing system comprises two push-pull type electromagnets arranged on the lower portion of the robot body.
Owner:BEIJING GAS GRP

Magnetic type deep sea ore collecting device

PendingCN121854060AEffectively disperse ground voltageExcellent anti-sink performanceMineral miningVehiclesMining engineeringElectric cables
The invention relates to the technical field of deep sea resource development, in particular to a magnetic type deep sea ore collecting device which comprises a rigid pressure-resistant main frame, mechanical legs, mechanical arms, an ore processing module, a communication module, a pushing module and a positioning module. A sealed pressure-resistant cabin is arranged in the rigid pressure-resistant main frame; the mechanical legs are symmetrically installed on the two sides of the rigid pressure-resistant main frame. The mechanical arm is installed on the front end face of the rigid pressure-resistant main frame. The ore processing module is arranged along the center line of the rigid pressure-resistant main frame; the communication module is connected with the water surface support mother ship through an armored cable; the pushing module comprises a plurality of horizontal propellers and a plurality of vertical propellers; the positioning module is installed on the upper side face of the rigid pressure-resistant main frame. The device provided by the invention has the advantages of good terrain adaptability, high collection integrity, small disturbance and reliable operation, and is suitable for selective collection operation of resources in a deep sea complex environment.
Owner:DALIAN UNIV OF TECH

Double-wall-face gap climbing robot and control method thereof

PendingCN122540272AAutomatically adjust support forceprevent falling
This invention relates to the field of climbing robot technology, and particularly to a dual-wall gap climbing robot and its control method. The dual-wall gap climbing robot includes a steering module, a first adaptive motion module, a free hinge module, and a second adaptive motion module. The first and second adaptive motion modules are arranged parallel to each other in the vertical direction. The first adaptive motion module includes a base, a rigid slider module, a flexible slider module, and a support arm. The dual-wall gap climbing robot can achieve adaptive buffering during movement to prevent falling from the wall, and can automatically adjust the support force of the support arm to adapt to slight undulations in the wall surface. It can achieve flexible steering, has strong environmental adaptability, and solves the technical problems of existing climbing robots lacking elastic adaptive capability, having poor adaptability to wall undulations, and insufficient steering flexibility.
Owner:GUANGDONG UNIV OF TECH

Cell structure integrated with fin structure, preparation method thereof and SiC power device

The application relates to a cell structure integrated with a fin structure and a preparation method thereof and a SiC power device, and the structure comprises the following: a substrate; a super-junction epitaxial layer located on the top surface of the substrate and comprising two kinds of doped column gate structures with different conductive types, the doped column gate structures being located on the side of the super-junction epitaxial layer away from the substrate and extending along a first direction and being arranged at intervals along a second direction; a first fin structure located in the super-junction epitaxial layer between adjacent gate structures and comprising a first base region, a source region and a shielding region; the source region and the shielding region are alternately arranged along the first direction through the top surface of the first fin structure, and the first base region is arranged directly below the source region; a second fin structure located on the side of the gate structure away from the first fin structure; wherein the first fin structure is located directly above the doped column of the first conductive type; the bottom surface of the gate structure is not lower than the shielding region, and the top surface of the gate structure is lower than the top surfaces of the first fin structure and the second fin structure. The device channel mobility can be effectively improved, and the chip area can be reduced.
Owner:GUANGDONG XINYUENENG SEMICON CO LTD

Lithium nickel manganese acid cathode material, preparation method thereof, cathode and battery

The application relates to the technical field of battery materials. Disclosed are a lithium nickel-manganese acid positive electrode material, a preparation method thereof, a positive electrode and a battery. The lithium nickel-manganese acid positive electrode material comprises a base material and a first coating layer and a second coating layer successively coated on the surface of the base material; the chemical general formula of the base material is Li(Li a Ni b Mn c Fe d Sb e )O 4‑x , wherein a+b+c+d+e=2, 0<=x<=0.2, 0<=a<=0.1, 0.4<=b<=0.5, 1<=c<=1.5, 0.1<=d+e<=0.4; the first coating layer comprises NbTi(PO4)3, and the mass ratio of the first coating layer to the base material is 0.1-5:100; the second coating layer comprises a carbon material, and the mass ratio of the second coating layer to the base material is 0.1-5:100. The lithium nickel-manganese acid positive electrode material provided by the embodiment of the application has excellent electrochemical performance.
Owner:YIBIN LIBODE NEW MATERIAL CO LTD

Line light source with high heat dissipation

The utility model discloses a line sweep light source of high heat dissipation performance relates to the technical field of detection light source. Line sweep light source of high heat dissipation performance includes base, light emitting component and heat dissipation component, base includes seat body, heat dissipation block and mounting block, seat body is provided with accommodating cavity, light emitting component and heat dissipation component, a plurality of mounting blocks are arranged along first horizontal direction interval arrangement setting, the second mouth is formed between adjacent mounting block and is defined, the first mouth is set up along the second horizontal direction through setting of heat dissipation block, and a plurality of first mouths are distributed along first horizontal direction interval, a plurality of heat dissipation blocks are arranged along second horizontal direction interval, the air between the adjacent two heat dissipation blocks can flow to the plurality of mounting blocks and the heat dissipation block adjacent to the plurality of mounting blocks through the first mouth, and then flows out from the second mouth, improve the flowability of air, reduce the distance required for the air between the adjacent two heat dissipation blocks to flow outward.
Owner:东莞康视达自动化科技有限公司

Organic compound, organic electroluminescence device, and electronic device

The application belongs to the technical field of organic electroluminescence, and relates to an organic compound, an organic electroluminescent device using the same and an electronic device. The organic compound has a structure as shown in formula 1. When the organic compound is used in an organic electroluminescent device, the performance of the organic electroluminescent device can be significantly improved.
Owner:SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD

Composite material with longitudinally distributed basalt fibers as well as preparation method and application of composite material

The invention discloses a composite material with longitudinally distributed basalt fibers as well as a preparation method and application of the composite material. The composite material comprises at least one layer of base plate, wherein the base plate is formed by closely paving a plurality of prismatic unit bodies which are consistent in thickness and have regular polygonal cross sections; the unit bodies in the composite material are fixed into a whole through an adhesive; the unit body is composed of a plurality of basalt fibers which are longitudinally arranged; the fiber direction of the basalt fibers in the unit bodies is the same as the axis direction of the unit bodies and is perpendicular to the plate face of the base plate obtained by tiling the unit bodies. The core of the bulletproof armor plate is that the distribution direction of basalt fibers is changed from the radial direction to the axial direction, so that the problem that the radial pressure resistance is insufficient when traditional fibers are transversely distributed is solved, and the prepared bulletproof armor plate can convert impact force of bullets into pressure on the axial direction of the fibers; the extremely high axial compressive strength of the basalt fibers is fully utilized, so that the bulletproof efficiency is remarkably improved, and the light weight of the armor is achieved.
Owner:GUANGZHOU ALZENI TECHNOLOGY CO LTD

Semiconductor device structure, CMOS structure and its fabrication method

This application discloses a semiconductor device structure, a CMOS structure, and a method for fabricating the same, relating to the field of semiconductor device technology. The semiconductor device structure employs two buried oxide layers interleaved within a three-layer silicon SOI substrate. The epitaxial initiation layer of the source / drain regions is transferred from the top silicon layer of the SOI substrate to an intermediate or supporting silicon layer within the SOI substrate. This solves a series of process problems arising from the development of SOI technology nodes, particularly in epitaxially growing source / drain regions on a thinner top silicon layer, thus improving the epitaxial growth quality and structural stability of the source / drain regions. Furthermore, the parallel overlap length between the source / drain regions and the gate structure is reduced, significantly decreasing the parasitic capacitance between the source / drain regions and the gate structure. Moreover, the source / drain regions can directly contact the channel, enhancing the contact reliability between the source / drain regions and the channel, enabling stress control of the channel, and improving channel mobility, thus possessing significant application value.
Owner:GUANGDONG GREATER BAY AREA INST OF INTEGRATED CIRCUIT & SYST

Control method, electronic device, vehicle, storage medium, and program product

The application discloses a control method, an electronic device, a vehicle, a storage medium and a program product, and the control method is applied to a vehicle and comprises the following steps: obtaining a set turning radius input by a target object; and adjusting the rotating speed of at least one target wheel of the vehicle, so that the turning radius of the vehicle reaches the set turning radius. By obtaining the set turning radius input by the target object, and then adjusting the rotating speed of the at least one target wheel of the vehicle, so that the turning radius of the vehicle reaches the set turning radius, the effect that the vehicle can be controlled to flexibly turn at an arbitrary turning radius is achieved without adding hardware, the effect that the rotation center of the vehicle can be at a wheel, a certain point in the vehicle or a certain point outside the vehicle is realized, the control is simple and easy to realize, and problems, such as unnecessary collision or occupying too many lanes due to too large turning radius, can be avoided, the steering precision is improved, and the flexibility and maneuverability of the vehicle are improved.
Owner:BYD CO LTD +1

Organic compound, mixture and organic photovoltaic device

PendingCN121949343AInhibition of tight packingImprove mobilityOrganic chemistrySimple Organic CompoundsAcceptor
The invention relates to the field of organic photoelectric materials, in particular to an organic compound, a mixture and an organic photovoltaic device. The invention provides an organic compound as shown in a general formula (I), the compound has a large conjugate plane, and is beneficial to delocalization of electrons and improvement of the glass transition temperature; meanwhile, close packing like linear molecules is inhibited by the three-dimensional structure, so that excessive crystallization is inhibited; finally, the structure of three electron-withdrawing end groups of the organic compound provided by the invention provides a multi-dimensional electron transport channel, improves the electron mobility and inhibits recombination. Therefore, when the compound is used as an acceptor material to be applied to an organic photovoltaic device, excellent photoelectric conversion efficiency is shown.
Owner:GUANGZHOU ZHUIGUANG TECH CO LTD

A completely new type of tanker refueling device

The utility model discloses a novel type carrying and oiling device, including the single male end ball valve of connecting on oil pipe, the single male end ball valve is connected with Y type filter, and Y type filter is connected with DN50 straight pipe, and DN50 long elbow is connected with DN50, and the oil inlet of motor pump group is connected with DN50 long elbow, and the oil outlet of motor pump group is connected with DN40 long elbow, and DN40 long elbow is connected with DN40 straight pipe no.
Owner:BEIJING SANXING AUTOMOBILE

An engineering vehicle and chassis therefor

ActiveCN224276755Uachieve physical separationincrease profitWinding mechanismsTowing devicesControl theoryWinch
This utility model discloses an engineering vehicle and its chassis, including a chassis body, a winch, and a winch support. The winch is installed on the rear side of the chassis body in the forward direction, allowing the winch performing traction work behind the chassis body and the working device performing construction work in front of the chassis body to operate independently or collaboratively without interference, thus improving equipment utilization and work efficiency. The winch support is installed on the chassis body located behind the winch, and the winch support has a rope guiding structure to limit the rope released from the winch. This utility model enables convenient collection of logs while meeting load-bearing requirements.
Owner:XCMG EXCAVATOR MACHINERY CO LTD

Double-flow transmission mechanism with randomly adjustable turning radius

The utility model discloses a double-flow transmission mechanism with randomly adjustable turning radius, which comprises two groups of differential transmission components which are symmetrically arranged, and each differential transmission component consists of a shell structure and a gear mechanism. In addition, the device further comprises a driving motor A, a driving motor B and a split-flow transmission mechanism, the driving motor A is in power connection with the shell mechanism, the driving motor B is connected with the split-flow transmission mechanism, and the split-flow transmission mechanism is connected with the two gear mechanisms. The shunting transmission mechanism is composed of a spline shaft, a spline sleeve, a locking head, a locking groove, a supporting spring and an electric telescopic cylinder. The spline shaft is connected with the driving motor B. The locking head is in sliding fit with the spline sleeve, the supporting spring stabilizes the position of the locking head, and the electric telescopic cylinder is used for adjusting the position of the spline sleeve. By means of the mechanism, the crawler can accurately adjust the turning radius according to actual requirements, the problems that in the prior art, the turning radius cannot be adjusted, and steering is inaccurate are solved, and maneuverability, flexibility and stability under complex working conditions are remarkably improved.
Owner:HUNAN NONFERROUS METALS VOCATIONAL & TECHN COLLEGE

Flapping mechanism with independently controllable start and end positions

ActiveCN117818876Bchange feature parametersChange the upper limit positionWith power amplificationOrnithoptersFlapping wingGear wheel
The application provides a flapping mechanism with independently controllable flapping start position, comprising a wing rod, a connecting rod A, a connecting rod linear servo, a motor gear, a connecting rod B, a transmission wheel A, a transmission wheel B, a swing rod connecting piece, a rocker connecting piece, a micro linear servo, a speed reduction motor, a fuselage support and a swing rod linear servo. The application generates active yawing torque by flapping difference of two sides of the wing surface, fundamentally solves the problem that the vertical tail fails in the case of low flow velocity, and also solves the problems of poor disturbance resistance and poor maneuverability of the flapping wing aircraft in the low speed case. In addition, in the gliding stage, the upwash angle of the two sides of the wing surface and the tail can be controlled respectively, so that more bionic, flexible and efficient gliding flight is realized. The sub-aircraft has the characteristics of flight attitude bionics, strong visual confusion, low flight noise and high efficiency, and can be used in outdoor close-range reconnaissance, high-altitude long-endurance surveillance reconnaissance, wild animal close-range video shooting and other task scenes, and has important significance and value in the future.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

An Autonomous Control Method for Unmanned Aerial Vehicle Swarms Based on VGG16 and Virtual Game Theory

This invention provides an autonomous control method for a drone swarm based on VGG16 and virtual game theory. The drones utilize a pre-trained attitude recognition model to identify the historical movement information of their opponents and calculate the opponent's strategy tendency at the previous moment based on this information. Then, the drones select a candidate action from a set of potential actions, calculating the opponent's strategy tendency and probability of choosing that action according to the game theory formula. A reward function is designed, and the drones select their own action based on the obtained opponent's strategy probability using the optimal response decision rule, observing the changes in the opponent's actions until the entire drone swarm reaches a stable state. This enables the analysis and game theory of multiple surrounding drones. When encountering signal interference, this invention allows some drone units to malfunction while the drone itself can adjust its movement attitude, maintaining relative stability for the entire swarm.
Owner:XIDIAN UNIV

Omni-directional decoupled ring vector tiltrotor aircraft and control method thereof

The application discloses a kind of high-efficiency omni-directional decoupling annular vector tilt-rotor aircraft and control method thereof, aircraft includes fuselage, fuselage driving gear set, four tilting mechanisms, four annular vector tilt-rotor power groups and electronic equipment etc.Parts.The aircraft described in the application can realize six degrees of freedom omni-directional pose decoupling flight, the attitude angle is omni-directional arbitrary angle in it, including roll angle, pitch angle and yaw angle, can realize arbitrary attitude hovering and flight of aircraft.The aircraft described in the application solves the controllable attitude angle limit of conventional variable tilt-rotor mechanism from structure, improves the ability of complex space activity of aircraft, and fundamentally solves the problem of power offset and power redundancy, reduces energy loss, improves power efficiency, prolongs endurance time, and is suitable for application scenarios requiring strong anti-interference and air physical interaction capability, and has important significance and value in the future.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

A tunnel side wall lining rapid moving lining trolley

A rapid-moving lining trolley for tunnel sidewall lining includes a dump truck. A mounting plate is vertically installed on the side of the dump truck's cargo box, and steel formwork is connected to the mounting plate via an automatic telescopic rod matrix. This invention utilizes hydraulic rods in conjunction with the steel formwork structure to form a stable support, effectively resisting construction vibrations and ensuring structural stability during concrete pouring, thus guaranteeing construction quality and safety. This invention, through modification of a conventional dump truck, allows for convenient on-site relocation and rapid deployment to unstable rock sections such as shallowly buried tunnel sections, weak and fractured zones, and fault zones. Especially in areas with a risk of sudden collapse, it can respond quickly and arrive at the work location promptly to carry out reinforcement work, exhibiting strong adaptability and high mobility.
Owner:中国水电建设集团十五工程局有限公司

Perovskite laminated cell and preparation method thereof

The invention provides a perovskite laminated cell and a preparation method thereof. The perovskite laminated cell comprises a bottom cell, a tunneling composite layer and a perovskite top cell which are sequentially laminated, the tunneling composite layer comprises a first TCO layer and a second TCO layer which are stacked in sequence; the first TCO layer contains a hydrogen element; the surface of the second TCO layer is provided with hydroxyl groups; the perovskite top cell comprises a first charge transport layer, a perovskite light absorption layer, a second charge transport layer and an electrode which are stacked. The first charge transport layer is connected with the second TCO layer, the first charge transport layer is provided with a passivation group, and the passivation group and a hydroxyl group on the surface of the second TCO layer form a covalent bond. According to the invention, under the synergistic effect of the first TCO layer and the second TCO layer, efficient tunneling recombination can be realized, and the stability and efficiency of a cell device are greatly improved.
Owner:CHINT NEW ENERGY TECH CO LTD

A mobile lithium battery fire special extinguishing equipment

PendingCN122230269AOvercoming perceived limitationsaccurate modelingNavigation by speed/acceleration measurementsFire rescueMultiple sensorHigh pressure water
This invention discloses a mobile firefighting equipment specifically designed for lithium battery fires, comprising an autonomous firefighting robot, a guide hose, and a trailer. Based on multi-sensor data fusion, it achieves automatic fire source identification and location, automatic mapping, autonomous navigation, and automatic firefighting, making it suitable for scenarios requiring rapid response and safe firefighting. The mobile chassis houses an industrial control computer, a GNSS navigation module, a mobile power supply module, and a heat dissipation module. Sensors and signal receiving equipment are located on top of the chassis. A thermal imager identifies the fire source, and combined with lidar and a depth camera, it achieves environmental modeling and autonomous obstacle avoidance in complex fire scenes. The industrial control computer calculates the target pose in real time based on sensor data and controls the high-pressure water cannon to aim at the fire. The trailer integrates a high-pressure water pump to provide continuous firefighting power. This solves the problem of limited perception in dense smoke and high-temperature environments. While ensuring a high water capacity, it enhances the robot's intelligence level and has extremely high practical application value.
Owner:SHENZHEN RESEARCH INSTITUTE OF CHINA UNIVERSITY OF MINING & TECHNOLOGY

A method for preparing a transferable layered bismuth oxyselenide semiconductor film by hetero-layer interface regulation

PendingCN122679832Aeasy to useAchieve multiple lossless transfers
This invention belongs to the field of semiconductor materials technology and discloses a method for preparing transferable layered bismuth oxide selenide semiconductor thin films by heterolayer interface control. The method includes: 1) activating and growing a substrate; 2) depositing an interface-controlled heterolayer, which is a two-dimensional material or a water-soluble oxide; 3) CVD growing a Bi₂O₂Se thin film on the heterolayer; and 4) using a polymer support film to assist wet peeling, separating the film from the substrate and transferring it to a target substrate. This invention solves the problem of non-destructive transfer due to excessively strong adhesion between the film and substrate by introducing a heterolayer with weak interfacial interactions, and is applicable to fields such as flexible electronics and silicon-based integration.
Owner:HEBEI GEO UNIVERSITY

Articulated, track dual mode steering system and vehicle

This invention discloses an articulated / tracked dual-mode steering system, comprising a front articulated chassis and a rear articulated chassis. A front axle is connected to the lower part of the front articulated chassis, and a rear axle is connected to the lower part of the rear articulated chassis. Both ends of the front and rear axles are connected to a triangular track via hydraulic motors. A steering gear is mounted on the front articulated chassis, with its lower end connected to a hydraulic steering unit. The two outlets of the hydraulic steering unit are connected to a left and a right steering cylinder, respectively. The system also includes two variable displacement hydraulic pumps connected in series. One variable displacement hydraulic pump is connected to two hydraulic motors located on the right side, and the other variable displacement hydraulic pump is connected to two hydraulic motors located on the left side. This invention also discloses a vehicle. This invention combines two steering modes into a single working vehicle, allowing the vehicle to use either articulated steering or tracked steering depending on the actual situation, fully utilizing the advantages of both steering modes.
Owner:HEILONGJIANG PROV AGRI MACHINERY ENG SCI INST

A variable body aircraft

The present disclosure relates to a variable aircraft. One of the first fixed wing and the second fixed wing is fixedly connected to the left side of the fuselage, and the other is fixedly connected to the right side of the fuselage; one end of the first connecting rod is hinged to the first fixed wing, and the other end is hinged to the first movable wing; one end of the second connecting rod is hinged to the second fixed wing, and the other end is hinged to the second movable wing; the directions of the hinged shafts are consistent with the longitudinal axis of the fuselage; the first movable wing and the second movable wing can be switched to the cross-wing configuration under the action of aerodynamic force and roll torque, in which the first movable wing is connected to the fuselage at one end and suspended at the other end, and the second movable wing is connected to the fuselage at one end and suspended at the other end; the first fixed wing, the first movable wing, the second fixed wing and the second movable wing are arranged in sequence around the longitudinal axis of the fuselage, the first fixed wing and the second fixed wing are opposite to each other, and the first movable wing and the second movable wing are opposite to each other.
Owner:TSINGHUA UNIVERSITY