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Indoor point cloud accurate extraction method based on orthogonal direction and graph cut optimization
ActiveCN119515892Aimprove accuracyimprove integrityImage enhancementImage analysisAlgorithmTheoretical computer science
The invention discloses an indoor point cloud accurate extraction method based on orthogonal direction and graph cut optimization. The method has remarkable beneficial effects in point cloud processing and building information extraction. Firstly, through orthogonal direction estimation and nonlinear optimization, point cloud data can be aligned with the main axis of a building with high precision, and it is ensured that a model is consistent with an actual structure. Secondly, according to the method, external point cloud data of the building are effectively eliminated through a graph cut model, noise interference is reduced, and thus effective point cloud inside the building is reserved. In addition, by utilizing plane detection and orthogonal constraint, the accuracy and integrity of indoor space extraction are improved. On the whole, the method not only is high in automation degree and remarkably reduces manual adjustment requirements, but also has strong robustness, and can still stably extract the internal structure information of the building even under the condition of data missing or noise existence.
Owner:HANGZHOU DIANZI UNIV
Mapping system and method for flight inspection of indoor equipment
PendingCN121898377AImprove spatial precisionconsistent structureNavigational calculation instrumentsNavigation by speed/acceleration measurementsData acquisitionEngineering
The invention relates to a mapping system and method for flight inspection of indoor equipment, the system comprises a data acquisition end and an offline data processing end, the data acquisition end comprises an unmanned aerial vehicle and a sensing module, and the sensing module comprises a laser radar module, a binocular camera module, an inertial measurement module and an airborne recording module; the method comprises the following steps: synchronously acquiring multi-source data through layered flight; performing space-time alignment and preprocessing; self-adaptive sampling is carried out based on point cloud geometric prior guide image features, and laser-vision joint features are generated; fusing point cloud registration, joint features and inertial data, and carrying out joint estimation on adjacent frame pose increments; performing loopback detection based on the key frame to generate a closed-loop constraint; constructing and optimizing a pose map to eliminate cumulative drift; and finally fusing to generate a global point cloud map. According to the method, the space consistency and geometric accuracy of the map can be effectively improved, and a reliable data basis is provided for digital modeling and intelligent operation and maintenance of indoor equipment inspection.
Owner:FUZHOU UNIV
Laser cutting device for automobile parts
The invention discloses an automobile part laser cutting device, and relates to the field of laser cutting, the automobile part laser cutting device comprises a bottom box, a mounting frame, a bearing plate, a controller, a collecting box, a conical shell, a laser device main body and a laser gun, the upper side of the bottom box is movably connected with a movable air supply mechanism; the movable gas supply mechanism is used for driving the laser gun to move and providing gas for the lower end of the laser gun. The movable gas supply mechanism is moved to the position above a to-be-cut piece, then the laser gun is moved to the position over the to-be-cut piece, the laser device body is controlled to be started on the controller, the laser device body emits laser through the laser gun to conduct cutting, meanwhile, the gas pump is started, the gas pump extracts gas in the gas bottle and conveys the gas into the pipeline, and cutting is conducted. And after being adjusted by the gas flow controller, gas is supplied to the cutting position at the lower end of the laser gun along the inclined pipe, slag is blown away, and a cutting area and a cooling material are protected.
Owner:HEFEI CHANGQING MACHINERY
Image generation model training method and device, equipment and medium
PendingCN119578495AImprove generation effectImprove anti-interference abilityInternal combustion piston engines2D-image generationAlgorithmEngineering
The invention belongs to the field of artificial intelligence, and relates to an image generation model training method comprising the following steps: obtaining a sample image and structural feature information corresponding to the sample image; inputting the structural feature information as a constraint condition into a preset diffusion model to generate a plurality of prediction images; based on an intra-class contrast learning strategy, performing integration processing on the plurality of prediction images and the sample image to obtain a loss function; adjusting parameters of the diffusion model based on the loss function, and returning to execute the step of inputting the structural feature information as the constraint condition into the preset diffusion model until the loss function is obtained until the convergence of the loss function reaches a convergence threshold value; and determining the diffusion model corresponding to the condition that the loss function reaches a convergence threshold as an image generation model. The invention further provides a device, equipment and a medium. In addition, the invention also relates to a block chain technology, and the sample image and the structural feature information can be stored in a block chain. According to the invention, the image generation accuracy can be improved.
Owner:PING AN TECH (SHENZHEN) CO LTD
Preparation method of platinum-based alloy catalyst
The invention provides a preparation method of a platinum-based alloy catalyst, and belongs to the field of alloy preparation. The invention provides a preparation method of a platinum-based alloy catalyst, which comprises the following steps: obtaining a ground state crystal structure of the platinum-based alloy catalyst by using crystal structure prediction software, and obtaining the composition of the platinum-based alloy catalyst according to the ground state crystal structure; the platinum-based alloy catalyst is obtained by mixing the corresponding metal elementary substances according to the composition and then smelting the metal elementary substances. And the ratio of the molar ratio of each metal element except platinum to platinum to the molar ratio of the corresponding metal element except platinum to platinum in the composition is independently (1.5-1.7): 1. According to the method, the ground state crystal structure of the platinum-based alloy catalyst is obtained by using crystal structure prediction software, and then the platinum-based alloy catalyst is prepared, so that the test quantity and the period length are greatly reduced when the platinum-based catalyst is prepared, and the cost is reduced.
Owner:KUNMING UNIV OF SCI & TECH
Hydrogen fuel cell
PendingCN119275322APlay a protective effectavoid deformationFuel cellsHydrogen fuel cellMechanical engineering
The invention relates to a hydrogen fuel cell, comprising: a housing having an accommodating cavity; the electric pile unit is contained in the containing cavity, the electric pile unit comprises at least two electric pile assemblies which are sequentially arranged in the first direction, each electric pile assembly comprises a reactor core, a gas-liquid port, an end plate assembly and a supporting assembly, each end plate assembly comprises a first end plate and a second end plate, the length direction of the reactor core is the second direction, and the gas-liquid port is communicated with the first end plate; the second direction is perpendicular to the first direction, the first end plate and the second end plate are oppositely arranged at two ends of the reactor core along the second direction, and the supporting assembly is arranged along the length direction of the reactor core. According to the invention, the compactness of the structure can be effectively improved, and the height size of the whole structure is reduced, so that the adaptability of space is improved, the assembly by operators is facilitated, the assembly efficiency is greatly improved, the production efficiency is effectively improved, and the production cost is reduced on the premise of ensuring the strength of the double-galvanic-pile connection structure. And the reliability of the structure and the convenience of later maintenance are met.
Owner:ZHEJIANG FENERGY TECH CO LTD +1
Method and device for generating MailCore2 component integration configuration file
ActiveCN119127217AImprove compatibilityImprove integration efficiencyCode compilationSoftware engineeringSoftware development
The invention provides a method and a device for generating an integrated configuration file of a MailCore2 component. The method is applied to the technical field of software development and comprises the steps that a target compiling configuration file of an Xcode project file in a MailCore2 project is opened; filling a compiling source file in the target compiling configuration file into an initial podspec file newly created in a MailCore2 project root directory to obtain a first podspec file; filling a copy file in the target compiling configuration file into the first podspec file to obtain a second podspec file; filling a library file search path in the target compiling configuration file into the second podspec file to obtain a third podspec file; filling a header file search path in the target compiling configuration file into the third podspec file; filling a compiler flag file in the target compiling configuration file into the third podspec file to obtain a fourth podspec file; and filling the fourth podspec file with the target construction information to obtain a target podspec file. In this way, the efficiency of integrating the MailCore2 component can be improved.
Owner:CHINA UNICOM ONLINE INFORMATION TECHNOLOGY CO LTD
Quality inspection method for packaged products based on fusion of X-ray and visible light
ActiveCN119048483BRealize detectionImprove reliabilityImage analysisCharacter and pattern recognitionFeature dataRay
The present invention relates to the technical field of packaging product detection, and specifically to a quality detection method for packaging products based on the fusion of X-rays and visible light. In the present invention, X-ray images and visible light images are collected; feature engineering processing is performed on the X-ray images and visible light images to generate X-ray feature data and visible light feature data, wherein the data processed by feature engineering includes spatial and structural information; the X-ray feature data is used to detect the internal product quality using an internal quality detection model, and different output results are determined according to different internal product quality detection results; and the visible light feature data is enhanced according to the abnormal position to generate a visible light abnormal image, and the visible light abnormal image is used to detect the external product quality using an external quality detection model.
Owner:HUNAN ZAOAN INTELLIGENT TECH CO LTD
Photovoltaic sunshade
PendingCN121966441Aavoid exposureavoid wear and tearPhotovoltaic supportsRoof covering using slabs/sheetsMechanical engineeringMaterials science
The invention provides a photovoltaic sunshade shed. The photovoltaic sunshade comprises a frame structure and a photovoltaic module. The frame structure comprises a plurality of frame assemblies and a plurality of stand column assemblies, each frame assembly comprises a frame body provided with a cavity, the upper end of each stand column assembly is used for connecting two adjacent frame assemblies, and the lower end of each stand column assembly is used for being connected with a to-be-fixed face. The photovoltaic assembly is installed in the frame structure and comprises a photovoltaic piece, the photovoltaic piece comprises a photovoltaic panel and a connector extending out of the photovoltaic panel, the connector of the photovoltaic assembly is electrically connected through an electric connection assembly, and the electric connection assembly penetrates into the cavity of the frame body and extends to the cavity of the stand column assembly.
Owner:SHENZHEN HELLO TECH ENERGY CO LTD +1
Automatic magnet pasting equipment for paper box
The utility model relates to the technical field of paper box assembly, and particularly discloses automatic magnet pasting equipment for a paper box, which comprises a rack, and a first feeding device, a second feeding device, a glue supply device, a pasting manipulator and a pasting workbench which are arranged on the rack, the first feeding device is used for supplying an external paper box to the material pasting workbench, the second feeding device is used for supplying a magnet to the material pasting manipulator, the glue supply device and the material pasting manipulator are arranged in a matched mode and used for providing an adhesive enabling the magnet and the paper box to be pasted in a matched mode, and the material pasting manipulator is arranged on the rack in a reciprocating motion mode; the material pasting mechanical arm is used for picking up the magnet supplied by the second feeding device, driving the magnet to adhere the adhesive and pasting the magnet on the paper box borne by the material pasting workbench. According to the technical scheme, efficient and automatic mounting of paper boxes and magnets is achieved, the production efficiency is improved, the labor cost is reduced, the paper box mounting device adapts to different paper box specifications, the mounting quality is guaranteed, and the finished product yield and the equipment operation stability are improved.
Owner:DONGGUAN JURONG INTELLIGENT MASCH CO LTD
Space target three-dimensional reconstruction method for suppressing dark color interference through combination of brightness and transparency
PendingCN121999140Aquick estimateeffective estimateImage enhancementImage analysisPattern recognitionImaging quality
The invention belongs to the field of space target imaging, and discloses a space target three-dimensional reconstruction method for inhibiting dark color interference through combination of brightness and transparency, which is used for solving the problems of poor imaging quality and inaccurate pose estimation of a space target. According to the method, multiple requirements of improving the quality of an input image, adjusting a pose and training a three-dimensional model are jointly completed, and low-quality imaging of an incomplete imaging system is preprocessed based on lucky imaging; and then, dense feature points are extracted by using a pre-training network based on no detector, estimation of a three-dimensional initial point cloud and an initial pose of a camera is carried out, and pose joint adjustment is carried out by combining RANSAC and Bundle AdJustlement. During training, an MLP-based optimizer is used for calculating the deviation of pose adjustment, meanwhile, training of parameters of three-dimensional Gaussian primitives is carried out, and after various physical constraints are added, a one-stop assembly line can be implemented. According to the method, the good basic shape and the sharp edge of the model are kept, the good anti-noise capability is achieved, and meanwhile the real-time performance and the robustness are achieved.
Owner:GUANGDONG UNIV OF TECH
Method for constructing multi-type image anonymization labeled dataset and target coverage determination
ActiveCN121415403Bimprove generalizationImprove adaptabilityDigital data protectionCharacter and pattern recognitionData setFeature dependency
The application belongs to the technical field of vehicle information anonymization detection, and particularly relates to a multi-type image anonymization annotation dataset construction and target coverage rate determination method. The method is based on a face and license plate image dataset with double annotation of theoretical anonymization region and anonymization features, introduces an anonymization feature extraction branch in an improved YOLOv5-L model and performs cross-modal feature fusion, combines a plurality of loss functions with theoretical anonymization region positioning loss as the core and a two-stage progressive training and difficult example mining mechanism, and realizes precise learning of the anonymization features. After normalizing the input anonymization image, the model inference obtains the theoretical anonymization region coordinates and maps them back to the original size, and through non-maximum suppression and matching of the IoU threshold, the region coverage rate is calculated to determine the positive detection, missed detection and statistical false detection rate. The application effectively overcomes the feature dependency failure and model robustness problem, and realizes high-precision, low-misjudgment anonymization detection and evaluation under various anonymization conditions.
Owner:CATARC AUTOMOTIVE TEST CENTER (WUHAN) CO LTD
Integrated top plate type top plate conveying chain
The invention relates to the field of chains, and particularly discloses an integrated top plate type top plate conveying chain. The integrated top plate type top plate conveying chain comprises a plurality of chain links, the chain links are sequentially distributed and connected through pin shafts, and the pin shafts are connected with idler wheels. Each chain link comprises a top plate and two chain plates, the top plate is positioned between the two chain plates and is connected with the two chain plates through a transition part, and the chain links are integrally arranged and are bent and formed at the transition part; the top plate comprises a V-shaped part, a V-shaped opening of the V-shaped part is arranged away from the pin shaft, a guide line is formed at the bottom of the V-shaped opening, and the guide line is arranged perpendicular to the axis of the pin shaft. According to the integrated top plate type top plate conveying chain, the top plate and the chain plates are integrally bent and formed, the machining procedure is simplified, meanwhile, the top plate is completely arranged between the two chain plates, the load borne by the top plate can be better controlled between the two chain plates when materials are conveyed, and the bearing stability is greatly improved.
Owner:HANGZHOU DONGHUA CHAIN GRP
Cross-color-gamut phase-guided double-attention fusion HDR imaging method
PendingCN121961958Aavoid missing detailsreduce ghostingImage enhancementImage analysisGamutFeature extraction
The invention relates to a cross-color gamut phase-guided double-attention fusion HDR imaging method. The method comprises the following steps: step (1), carrying out data preprocessing of denoising and cleaning on an original multi-exposure image sequence; step (2), obtaining standardized image data; (3) mapping a nonlinear pixel value into a linear physical illumination value for the standardized image data through a reverse application camera response curve, and outputting a linearized multi-frame image; step (4), splicing the linearized multi-frame images on a channel dimension, and constructing a unified input tensor containing complete dynamic range information; (5) performing convolution operation on the input tensor, and extracting shallow feature representation of local textures and edges of the image; extracting shallow layer features; and step (6), introducing a double attention mechanism to perform interaction and aggregation of global features, and outputting a fused high dynamic range feature map. The method can stably work in a dynamic scene and under an extreme exposure condition, and promotes the practical application of an HDR imaging technology.
Owner:XIDIAN UNIV
MailCore2 component integration configuration file generation method and device
ActiveCN119127217BImprove compatibilityImprove integration efficiencyCode compilationPathPingConfigfs
The present invention provides a method and device for generating a MailCore2 component integration configuration file. Applied to the technical field of software development, the method comprises opening a target compilation configuration file of an Xcode project file in a MailCore2 project; filling the compilation source file in the target compilation configuration file into a newly created initial podspec file in the root directory of the MailCore2 project to obtain a first podspec file; filling the copy file in the target compilation configuration file into the first podspec file to obtain a second podspec file; filling the library file search path in the target compilation configuration file into the second podspec file to obtain a third podspec file; filling the header file search path in the target compilation configuration file into the third podspec file; filling the compiler flag file in the target compilation configuration file into the third podspec file to obtain a fourth podspec file; filling the target build information into the fourth podspec file to obtain the target podspec file. In this way, the efficiency of MailCore2 component integration can be improved.
Owner:CHINA UNICOM ONLINE INFORMATION TECHNOLOGY CO LTD
High-pressure grouting molding equipment and molding method
ActiveCN118578495BQuality assuranceGuarantee stabilityDischarging arrangementAuxillary shaping apparatusMechanical engineeringMotronic
The present invention provides a high-pressure grouting molding equipment and molding method, which relates to the technical field of ceramic grouting molding, including: a frame, a support table, a fixed mold body, a top hanger, a mold electric cylinder, a movable mold body, a control box, a high-pressure grouting pump, an atomizing booster pump, a supporting seat, a flip frame and a connecting hanger; the top of one end of the frame is horizontally fixedly docked with a support table; the top end of the support table is vertically fixedly provided with a fixed mold body; the upper end of the fixed mold body is horizontally fixed with a top hanger. The present invention adopts a design combining a fixed mold body with a movable mold body, which realizes the rapid docking and separation of the mold. The movable mold body is driven to move by an electric cylinder, so that the assembly and disassembly process of the mold is more automated and convenient, and the production efficiency is improved. At the same time, the movable mold body is consistent with the fixed mold body in structure, which ensures the accuracy and stability of the mold, thereby ensuring the quality of the grouting molding embryo.
Owner:GUANGDONG MINJIE INTELLIGENT TECH CO LTD
Strong-acid-corrosion-resistant carbon-loaded platinoid all-alloy nano material and preparation method thereof
PendingCN122091618Ashort manufacturing processavoid it happening againMaterial nanotechnologyCell electrodesPlatinumPtru catalyst
The invention discloses a strong-acid-corrosion-resistant carbon-loaded platinoid all-alloy nano material and a preparation method thereof, and relates to the technical field of new energy materials. The preparation method of the carbon-loaded platinoid all-alloy nano material comprises the following steps: dispersing a carbon carrier in a solvent, adding platinum and copper precursors, dispersing, and adsorbing at constant temperature to obtain a suspension mixed solution; drying by distillation, drying and grinding to obtain a solid compound; calcining in an inert atmosphere, and cooling to obtain a carbon-supported platinoid material; and carrying out strong acid corrosion treatment, washing, drying and grinding to obtain the strong acid corrosion resistant carbon-loaded platinoid all-alloy nano material. The prepared material can keep the crystal structure stable in a strong acid environment and has excellent acid corrosion resistance, and the platinum-copper nano material takes platinum as a solvent and copper as a solute to form a complete alloy phase with the atomic ratio of copper to platinum being greater than or equal to 1: 1. When the material is used as an oxygen reduction catalyst, the atom utilization rate of platinum is high, and meanwhile, the oxygen reduction reaction catalytic activity and long-term stability of the material are remarkably improved.
Owner:KUNMING UNIV OF SCI & TECH
Compound equipment for anti-falling hook-and-loop fastener and use method of compound equipment
PendingCN119239099AFully contactedHigh bonding strengthLamination ancillary operationsLaminationAdhesion strengthUltimate tensile strength
The invention belongs to the technical field of magic tape compounding equipment, and particularly relates to compounding equipment for an anti-falling magic tape and a use method of the compounding equipment. Comprising an equipment body, one end of the equipment body is provided with a first supply part and a second supply part, the other end of the equipment body is provided with a winding part, one side of a base is provided with a driving box, the other side of the base is provided with a fixing wall corresponding to the driving box, and a gluing device is arranged between the driving box and the fixing wall and can glue a first bonding surface of a base fabric; the rear side of the gluing device is provided with an abutting and pressing combination part, and the abutting and pressing combination part can conduct abutting and pressing combination on the glued first bonding face of the base layer fabric and the second bonding face of the hook-and-loop fastener fabric; the cleaning assembly can be used for cleaning and dedusting the first bonding surface on the base fabric before the gluing device and the second bonding surface on the thread gluing fabric before the composite part is pressed; the bonding surface of the fabric is cleaned, so that the bonding strength and the uniformity are improved during compounding, and the fabric is not easy to fall off or damage during use.
Owner:ZHEJIANG SUHE NEW MATERIALS CO LTD
Virtual calibration method for monitoring low engine DPF (diesel particulate filter) trapping efficiency
PendingCN119150541Aconsistent structureImprove test efficiencyInternal combustion piston enginesDesign optimisation/simulationDiesel particulate filterModel parameter
The invention discloses a virtual calibration method for monitoring low DPF (diesel particulate filter) trapping efficiency of an engine. The virtual calibration method comprises the following steps: S101, acquiring parameters of the engine and a post-processing model; s102, building a virtual engine model according to the engine and post-processing model parameters; s103, establishing a protocol link between the virtual engine model and the calibration tool, and verifying whether the precision of the virtual engine model meets a preset precision target; s104, establishing a DPF simulation model according to the physical characteristics of the DPF; s105, DPF punching is simulated through the virtual calibration model, so that simulation of a DPF degraded part is consistent with that of an entity; and S106, DPF trapping efficiency low monitoring calibration is carried out according to the perfect DPF simulation model. The method has the advantages that the manufacturing process of degraded parts can be omitted, the DPF test efficiency is improved, and the test period is shortened.
Owner:GUANGXI YUCHAI MASCH CO LTD
Outer wall glass for photovoltaic integrated building
PendingCN121853718ADoes not affect irradiationDoes not affect viewingPhotovoltaic supportsSolar heating energyToughened glassCurtain wall
The invention relates to the technical field of building structures, and discloses photovoltaic integrated building outer wall glass which comprises a glass curtain wall, the glass curtain wall comprises a curtain wall frame, the inner space of the curtain wall frame is divided into an upper installation area and a lower installation area, and multiple sets of power generation units are arranged in the upper installation area in the length direction in an array mode. The power generation unit is arranged to be switched between a power generation state and a standby state, a control mechanism is arranged in the lower installation area and used for controlling state switching of the power generation unit, the power generation unit is parallel to the tempered glass in the power generation state, and the power generation unit is perpendicular to the tempered glass in the standby state. The power generation unit comprises an outer frame rotationally installed on the upper installation area, a rotating shaft formed at the rotating installation position is vertically arranged, a first photovoltaic panel is arranged in the outer frame, the outer frame is made of a transparent material, and when the power generation unit is in a power generation state, a diffusion plate is arranged on the side, facing the indoor space, of the outer frame.
Owner:GUANGDONG BLUE CASTLE CONSTR CO LTD
Multi-application-scene assembly type enclosing wall
ActiveCN222350441Usave materialGuarantee the appearance qualityFencingArchitectural engineeringRebar
The utility model discloses a multi-application scene assembly type enclosing wall, including stand column, base, crossbeam, fence and breast board, the inside of stand column is provided with at least four reinforcing steel bar, the reinforcing steel bar is parallel to the height direction of stand column, the upper surface of base is provided with four reinforcing steel bar hole that passes through base, and the cross beam is provided with the cross beam. The bottom ends of the steel bars extend out of the stand columns and are inserted into the steel bar holes, and the lower ends of the stand columns are fixed to the base through concrete. The side face of the stand column is provided with a reserved bolt, a wire hole and a reserved screw hole, and the reserved screw hole is located above the reserved bolt. According to the utility model, the enclosing wall main body structure can complete electrical wiring through the hollow part, the wire hole and the wire groove, lines are effectively protected by the enclosing wall structure, and a space is reserved for adding other security devices; in the on-site installation construction process, the relative positions of all the components are guaranteed through a measuring tool.
Owner:GUANGDONG YUEWAN NEW MATERIAL TECH CO LTD
Novel polishing device for copper rod production
ActiveCN222177044Uconsistent structureRealize reciprocating motionEdge grinding machinesGrinding drivesCopper wirePolishing
The novel polishing device for copper rod production comprises a first fixing frame, a second fixing frame, a third fixing frame and a polishing mechanism, the second fixing frame and the third fixing frame are arranged on the two sides of the first fixing frame respectively, and the polishing mechanism is arranged on the upper portion of the first fixing frame; the second fixing frame and the third fixing frame are respectively provided with a traction mechanism; the grinding mechanism comprises a screw rod, a movable support, a roller, a first driving set and a grinding assembly, the movable support is connected with a sliding strip on the first fixing frame and the screw rod through sliding grooves and screw holes in the two sides, and a driving box is arranged on one side of the screw rod; a connecting hole is formed in the upper portion of the movable support, and a roller and a grinding assembly connected with the roller are arranged in the connecting hole. The traction mechanism comprises a lower traction set and an upper traction set. According to the automatic feeding device, automatic feeding of the copper rods can be achieved, the copper rods can be polished in a reciprocating mode, and the polished copper wires are collected.
Owner:GUANGXI WANXIANG COPPER CO LTD
Detachable composite material instrument desk tubular beam for light truck
PendingCN119636923Areduce manufacturing costGuaranteed dimensional accuracySuperstructure subunitsStructural engineeringTruck
The invention provides a detachable composite material instrument desk pipe beam for a light truck, the detachable composite material instrument desk pipe beam for the light truck comprises a pipe beam and a mounting bracket, the pipe beam comprises a main pipe beam and an auxiliary pipe beam, the main pipe beam is suitable for being mounted on a main driving side, and the auxiliary pipe beam is suitable for being mounted on an auxiliary driving side; the main pipe beam and the auxiliary pipe beam are both made of aluminum alloy, and the main pipe beam and the auxiliary pipe beam are connected in a riveting mode; the installation support is used for installing an environment part and comprises an injection molding support, and the injection molding support is formed on the tubular beam through injection molding. The detachable composite material instrument desk tubular beam for the light truck has the advantages of being low in cost, high in universality and the like.
Owner:SINO TRUK JINAN POWER CO LTD
A method for predicting the breeding behavior of Chinese sturgeon
The application discloses a Chinese sturgeon breeding behavior prediction method, which comprises the following steps: step 1, obtaining and uniformly formatting Chinese sturgeon breeding field monitoring data; step 2, calculating Chinese sturgeon breeding behavior evaluation indexes; step 3, constructing a Chinese sturgeon breeding behavior evaluation model coupled with multiple factors; step 4, identifying key factors and threshold intervals affecting Chinese sturgeon breeding behavior; and step 5, predicting the evolution law of Chinese sturgeon breeding activities under the comprehensive action of multiple factors and putting forward breeding field operation scheduling and protection and restoration strategies. The application solves the problems of the existing Chinese sturgeon breeding monitoring and evaluation means, such as difficulty in unifying multiple source data, difficulty in quantitatively evaluating breeding behavior, difficulty in identifying key factor thresholds, and insufficient prediction and decision support.
Owner:CHINESE STURGEON RES INST OF CTG +1
Apparatus and method for in situ regeneration of metal hydride hydrolysis hydrogenation and hydrolysis products
The present application relates to a kind of metal hydride hydrolysis hydrogen and hydrolysis product in-situ regeneration device and method, belong to hydrogen energy storage and release technical field.The device includes dynamic hydrogen nanobubble generation unit, reaction chamber, two-way flowable filter device, liquid storage tank connected in sequence;The top of the reaction chamber is provided with hydrogen inlet and outlet, solid inlet and outlet and pressure relief port, and the bottom is provided with liquid inlet and outlet;The dynamic hydrogen nanobubble generation unit is connected with the hydrogen inlet and outlet of reaction chamber by gas path;The dynamic hydrogen nanobubble generation unit includes gas compression circulation system and parameter monitoring feedback unit.The present application is integrated by hydrolysis hydrogen-hydride regeneration process unit, and utilizes dynamic hydrogen nanobubble method, for the first time in aqueous system realizes the efficient, low-temperature in-situ regeneration of metal hydride hydrolysis product (metal hydroxide), forms complete reversible hydrogen storage and release cycle.The method has the advantages of low energy consumption, good cycle stability, high device integration.
Owner:THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
Preparation method of coring composite material with water ice lunar soil drilling bearing and flexible sealing functions
InactiveCN119320560Aeasy to useprevent escapeRadioactive element fibre treatmentSynthetic fibresSoil scienceLunar soil
The invention discloses a preparation method of a coring composite material with water-ice lunar soil drilling bearing and flexible sealing functions, nano heteroaromatic fibers and heteroaromatic organic fibers of different sizes are compounded more tightly through surface grafting and functional group bonding, and the characteristics that the length-diameter ratio of a nano fiber structure is high, the length-diameter ratio of the nano fiber structure is large, and the length-diameter ratio of the nano fiber structure is large are utilized; the lunar soil containing material has the characteristics of high porosity and high surface activity, a supporting layer is constructed between the aromatic heterocyclic organic fiber soft bags, the defects that a current traditional lunar soil containing material is too large in porosity and internal fine soil is lost are overcome, and meanwhile the lunar soil containing material is endowed with more excellent mechanical performance; the composite lunar soil containing material has the advantages that strong guarantee is provided for use of the lunar soil containing material under extremely cold conditions, meanwhile, a compact layer is further constructed on the surface of the soft bag, escape of fine soil and frozen ice is effectively organized, the function of the composite lunar soil containing material is further enhanced on the basis of keeping original flexibility and high-strength performance, the method is simple, and the effect is obvious.
Owner:HARBIN INST OF TECH
Chemical synthesis method of b-type haemophilus influenzae capsular polysaccharide derivative
PendingCN119613465AMake sure to fall offEfficient CatalysisAntibacterial agentsSugar derivativesChemical synthesisDimer
The invention discloses a chemical synthesis method of a type b haemophilus influenzae capsular polysaccharide derivative, and belongs to the field of carbohydrate chemistry. The invention provides a modular synthesis strategy based on a phosphoramidite method. According to the strategy, a dimer receptor with a connecting arm at the O3 site of ribose at a non-reducing end is used as a main starting compound, and a phosphoramidite monomer donor and a dimer donor are respectively used as extension units of an odd-numbered polymer synthesis route and an even-numbered polymer synthesis route. Through optimization of a coupling catalysis strategy and optimization of a protecting group removal method, chemical synthesis of 1-12 repetitive units is efficiently completed. According to the synthesis method, the raw materials are cheap and easy to obtain, the preparation method is simple and easy to repeat, the yield of each step is relatively good, and the method has a very good application prospect in vaccine development of the haemophilus influenzae type b.
Owner:JIANGNAN UNIV
Multipurpose coastal salt marsh survey quantification frame and use method thereof
PendingCN119413490AGuaranteed stabilityGuaranteed accuracyMechanical area measurementsWithdrawing sample devicesSalt marshStructural engineering
The invention relates to the technical field of coastal wetland survey, in particular to a multi-purpose coastal salt marsh survey quantifying frame and a using method thereof.The multi-purpose coastal salt marsh survey quantifying frame comprises a set of quantifying frame assemblies and a set of quantifying frame supports, and the number of the quantifying frame assemblies is four, six or eight; the number of the quantitative frame supports is four, six or eight, the quantitative frame supports are used for supporting and fixing the quantitative frame assemblies, the quantitative frame assemblies are connected end to end to form a rectangular frame structure, one end of each quantitative frame assembly is an assembly head end, the other end of each quantitative frame assembly is an assembly tail plate, the middle of each quantitative frame assembly is an assembly handle part, and the assembly head ends are matched with the assembly tail plates in size. And the quantitative frame bracket is vertically connected with the component handle part to support and fix the quantitative frame component. According to the multipurpose coastal salt marsh investigation quantifying frame and the using method thereof, through the design capable of being opened and closed, the influence of the height of plants on use is eliminated, and the multipurpose coastal salt marsh investigation quantifying frame can be effectively used under the condition that the plants are tall.
Owner:NORTH CHINA SEA ENVIRONMENTAL MONITORING CENT OF STATE OCEANIC ADMINISTATION
Device and method for keeping load position unchanged
PendingCN121896713Aresolve space conflictsSkip the remodeling workPolycrystalline material growthBy pulling from meltConstant loadStructural engineering
The invention discloses a device and method for maintaining a load position unchanged, the device comprises lower telescopic units, a box body, a rope, a side edge steering unit, a center switching mechanism, an upper telescopic unit and a fixing clamp, the fixing clamp used for clamping the rope is installed in the middle of the bottom end of the box body, and a plurality of lower telescopic units are installed at the bottom end of the box body; a plurality of lower telescopic units are installed on the top of the box body and distributed in an array mode, a center switching mechanism is installed in the middle of the box body, a plurality of upper telescopic units are installed on the top of the box body and distributed in an array mode, and side edge steering units are installed on the two sides of the top of the box body. The device is suitable for the transmission balance test on the single crystal furnace, and is also suitable for occasions where the upper end is continuously lifted, the load weight is increased and the position is not changed, the load does not need to be designed to be equal to a crystal silicon rod in length or equal to a furnace body in diameter, and space conflicts between the load and the furnace body and between the load and an auxiliary chamber are avoided.
Owner:WUXI JINGAO WEILAN NEW ENERGY TECHNOLOGY CO LTD