33results about How to "Improve accessibility" patented technology

The application belongs to the technical field of polymer material recycling, and particularly relates to a high-efficiency enzymatic hydrolysis process of polycaprolactam. The high-efficiency enzymatic hydrolysis process of polycaprolactam provided by the application comprises the steps of acid pretreatment, enzymatic catalytic depolymerization and product post-treatment. The process combines sulfuric acid and a multi-enzyme system to treat PA6 with high substrate concentration. The physical form and chemical accessibility of PA6 are significantly changed through sulfuric acid pretreatment, which creates conditions for subsequent enzymatic hydrolysis reaction, and realizes efficient, deep and green degradation of PA6.

The application belongs to the technical field of biological medicine, and discloses an in-situ vaccine type mRNA-tLNP preparation for solid tumor treatment and preparation and application thereof. The preparation is designed by double targets, so that CAR-T kills more tumor cells to overcome tumor heterogeneity, changes the tumor immune microenvironment through autocrine fusion proteins (anti-PD-1 scFv and TGFbetaRII, IL-15 and Flt3L, CD40L), promotes T cell proliferation, and recruits and activates dendritic cells, cross-presents new antigens in the tumor local part, and produces in-situ vaccination effects; circular RNA encoding the above proteins is prepared, and the circular RNA is wrapped by lipid nanoparticles modified by CD3 antibodies, so as to be directly delivered to the body, and a significant solid tumor treatment effect is produced.

This utility model relates to the field of workpiece processing technology, and discloses a positioning component and a turning device. The positioning component includes a base plate assembly. At least one workpiece groove is formed on the first side plate of the base plate assembly. The workpiece groove is used for embedding and fixing the first end of the workpiece while exposing the second end for processing. An air supply connector is formed on the base plate assembly, and an air outlet is provided in the workpiece groove. The air supply connector and the air outlet are connected by an air duct. This design combines versatility and safety, achieving reliable workpiece fixation while simplifying the structure, avoiding stress damage during the turning process, and adapting to the load-bearing and turning requirements of workpieces of different shapes. It solves the technical problem that existing fixtures have limited applicability and are prone to workpiece damage during movement.

The invention discloses an ozone oxidation catalyst for casting waste gas treatment and a preparation method thereof, and belongs to the technical field of waste gas treatment. The mordenite is used as a catalyst carrier, the fluorinated silane is loaded on the surface of the mordenite through a reflux liquid phase deposition method to construct a hydrophobic barrier, the modified mordenite is obtained, the ozone decomposition performance of the modified mordenite in a high-humidity environment is remarkably improved, and further in an intermittent micro-negative pressure environment, the ozone decomposition performance of the modified mordenite is improved. A transition metal oxide is loaded on the surface of the modified mordenite to obtain the ozone oxidation catalyst, and through optimization of a preparation process, namely roasting activation and intermittent micro-negative pressure treatment are combined with a proper proportion of metal oxide sol, the number and accessibility of active sites of the catalyst are enhanced, and the ozone catalysis performance of the catalyst is promoted to be further improved. The ozone oxidation catalyst is applied to the treatment of casting waste gas, especially toluene-containing waste gas, and can show efficient, stable and high-adaptability treatment effects under different working conditions.

This application relates to an ecological revetment structure. This application is applicable to the field of water conservancy engineering technology. The technical problem to be solved by this application is: to provide an ecological revetment structure. The technical solution adopted in this application is: an ecological revetment structure, comprising: fish nest blocks, located on the riverbed at the toe of a slope, with a first cavity in the inner top for fish to inhabit, and at least partially connected to the first cavity via vertically arranged channels on the water-facing sidewall; multiple fish nest blocks arranged along the toe of the slope to form a supporting base for the revetment structure; ecological blocks, located on top of the fish nest blocks, with a second cavity in the inner top for filling soil, and multiple through holes in the inner bottom connecting to the second cavity; multiple ecological blocks stacked on top of each other on the slope surface; and connectors, located between adjacent fish nest blocks, adjacent ecological blocks, and between adjacent fish nest blocks and ecological blocks, enabling the fish nest blocks and ecological blocks to be horizontally adjacent or vertically stacked.

This invention discloses a multi-level adaptive machining auxiliary clamping device, belonging to the field of robotic automated drilling and riveting. The base module of this invention is used to stably connect the pressure foot to the robot's end effector and provides mounting positions for the conformal module, locking module, and alignment module. The conformal module uses a cylindrical pin array to automatically adapt to the surface shape of workpieces with different curvatures and conforms accordingly. The locking module is used to lock the conformed cylindrical pin array, ensuring the stability of the conformation. The alignment module is used to align the perpendicularity of the tool axis to the workpiece surface before drilling. This invention has a simple structure, low cost, and convenient installation. By applying clamping force to the workpiece surface, it can reduce the influence of drilling axial force on the workpiece, reduce chatter during machining, and improve machining stability. Simultaneously, this device can achieve automatic conformal clamping of workpieces with different curvatures, ensuring stable clamping while reducing workpiece deformation and further improving drilling accuracy.

The utility model provides a kind of support roller buffer rack placed in belt frame, belong to coal mine electromechanical transport technical field;Including support frame and transport belt conveyor body, the transport belt conveyor body is installed on support frame, the inner wall of support frame is equipped with buffer component, for storing support roller;The buffer component includes support plate, support plate is fixedly arranged in the inner wall of support frame, sliding slot is opened in support plate, the inner wall of sliding slot is slidably provided with first sliding rod and second sliding rod;Through the setting of buffer component, it solves the current from the head transfer support roller to damage, the long distance of transport, the problem of large human consumption, when routine inspection is carried out to transport belt conveyor body, if finding initiative support roller damage, staff need not long-distance transport, just need in the vicinity of transport belt conveyor body, can conveniently take support roller from bearing plate and replace, shorten the transport time and distance of support roller, save manpower.

This invention provides a method for preparing and applying a catalyst for co-thermal pyrolysis of waste plastics and biomass, comprising the following steps: Step 1, mixing FCC waste catalyst, sodium carbonate, and a metal oxide precursor uniformly to form a powder; Step 2, modifying HZSM-5 molecular sieve with phosphorus; Step 3, mixing the mixture obtained in Step 1, the phosphorus-modified ZSM-5 molecular sieve from Step 2, a binder, and water to form microspheres, calcining to obtain the catalyst for co-thermal pyrolysis of waste plastics and biomass. The catalyst prepared by this invention has a large pore size and pore volume, and when used for co-thermal pyrolysis of waste plastics and biomass, the liquid yield is greater than 70%.

The application discloses a rabies virus L protein B cell epitope polypeptide, a monoclonal antibody and application, and belongs to the technical field of biotechnology.A new type of B cell linear epitope of a rabies virus L protein is identified and disclosed for the first time, and the amino acid sequence is PLSRGEIFSIPQKIPA.The application further provides a monoclonal antibody against the rabies virus L protein, the monoclonal antibody can specifically recognize the B cell epitope, and provides an important tool for function research and expression detection of the rabies virus L protein.Meanwhile, the application determines key amino acid residues in the B cell epitope through an alanine scanning mutation technology, and provides a basis for in-depth understanding of an antigen-antibody interaction mechanism.In summary, the identified B cell epitope and the provided monoclonal antibody against the rabies virus L protein lay a solid technical foundation for development of a broad-spectrum rabies serological diagnostic reagent and a new type of vaccine (such as an epitope vaccine).

The application discloses a connecting assembly and a shock-absorbing support, belongs to the field of mobile intelligent terminals, and relates to support technology of the mobile intelligent terminals. The connecting assembly comprises a back plate, a sliding cushion plate, a pasting plate and a hanging rope, the back plate is provided with a first connecting structure on the back surface, the sliding cushion plate is arranged on the front plate of the back plate, and an automatic-reset movable clamping groove is formed between the sliding cushion plate and the back plate; the pasting plate is provided with a first pasting plate, a buckling piece and a sliding pasting plate, the first pasting plate is fixedly connected with the back surface of the mobile intelligent terminal, and the buckling piece can be clamped in the movable clamping groove; the hanging rope is connected with the sliding pasting plate, and a ring-shaped hanging neck part is arranged on the hanging rope. The shock-absorbing support comprises a mounting piece, a shock-absorbing adjusting frame and the connecting assembly; the mounting piece is used for being connected with a vehicle body, the shock-absorbing adjusting frame is arranged on the mounting piece, and the connecting assembly is arranged on the shock-absorbing adjusting frame. The application solves the technical problem that the conventional connecting assembly and shock-absorbing support of the mobile intelligent terminal cannot meet the requirements of convenient operation and stable placement.

This invention relates to the field of route planning technology, specifically to a rural grid-based governance planning method, system, and storage medium. By introducing an adaptive rotating grid division mechanism, this invention provides a rural grid-based governance planning method and system. First, a two-dimensional electronic map of the village is divided and labeled into grids. The number of road surface planning grids is obtained, and multiple sets of planning sets are constructed within the flat ground grids, from which candidate planning sets are selected. For the skeleton in any candidate planning set, skeleton connection rules and grid allocation rules are set based on the number of road surface planning grids and the road surface grids. The skeletons are connected according to these rules to obtain the final skeleton. Finally, the final skeleton of the optimal candidate planning set is selected for road paving. This invention's method and system significantly improve the refined utilization rate of construction resources while reducing construction costs, enhancing the overall connectivity and accessibility of the rural road network, and showing promising application prospects.

The utility model discloses a kind of roller product storage rack structure, it is related to roller storage technical field, including two vertical beams of corresponding arrangement, the upper end, lower end and intermediate position of the front and rear outer surface of two vertical beams are equipped with crossbeam, the upper end of crossbeam is equipped with spliced and inserted beam, intermediate position between left and right two crossbeams is equipped with fixed beam, intermediate position between left and right two spliced and inserted beams is equipped with connecting beam, fixed beam and the connecting beam are correspondingly arranged, the upper surface outside of connecting beam is equipped with outer limiting plate, small aperture limiting groove is equipped on the outer limiting plate, the inner side of the upper surface of connecting beam is equipped with inner limiting plate, the position corresponding to small aperture limiting groove on the inner limiting plate is equipped with large aperture limiting groove, the intermediate position of the outer surface of crossbeam and the intermediate position of the front and rear outer surface of fixed beam are equipped with limiting seat, improve the convenience of taking roller, improve the storage amount of single storage rack to the storage of roller, reduce the space occupied by storage rack.

The application discloses a scene data processing method and device, computer equipment and a storage medium, and belongs to the technical field of computers. The application performs post-processing on scene navigation data of a virtual scene, first divides a first target region from the virtual scene to roughly exclude isolated regions that cannot be walked on, and then divides a second target region in the first target region to finely exclude regions that cannot be returned after moving. In this way, the second target region obtained through post-processing has very high accessibility, manual point arrangement is not required, the human cost of scene data processing can be saved, and the accuracy of data processing can be improved.

The present application relates to a method for constructing a liver organoid based on human IPSC and its application in drug hepatotoxicity evaluation. Specifically, the present application relates to a method for inducing and differentiating iPSC in vitro to form a liver organoid, a liver organoid derived from iPSC cells and the application of the organoid in drug hepatotoxicity evaluation.

This invention belongs to the field of functional catalytic materials and water treatment technology for groundwater pollution remediation, specifically relating to a modified iron heterojunction biomass slow-release material, its preparation method, and the application of a coupled electric field in the remediation of organic pollutants in groundwater. This invention utilizes shiitake mushroom biochar as a carrier to load modified zero-valent iron, effectively alleviating the problem of iron agglomeration. The modified zero-valent iron grows in situ within the three-dimensional pores of the biochar, enabling the slow release of active iron components and improving the utilization efficiency of the oxidant. The built-in electric field of the iron-carbon structure-reinforced material helps solve the problem of slow mass transfer in groundwater media, improving the surface accessibility of the oxidant and pollutants. This material can reduce the localized Fe... 2+ Excessive concentration of oxidant leads to ineffective consumption, but the electrons can be driven by an electric field to migrate in a specific direction, achieving spatiotemporal matching and dynamic control of the electron transfer rate and the iron supply rate, forming a closed-loop system for in-situ regeneration, which has good application prospects in groundwater remediation.

This utility model belongs to the field of potato aeroponics technology, specifically relating to an air supply structure for potato aeroponics. It includes an aeroponics bed frame and a carbon dioxide generator and air supply pipe disposed on one side of the aeroponics bed frame. A reciprocating push-pull mechanism is provided on the aeroponics bed frame, and the upper side of the air supply pipe is mounted on the reciprocating push-pull mechanism. This utility model uses the reciprocating push-pull mechanism to oscillate the air supply pipe containing carbon dioxide generated by the carbon dioxide generator, causing the airflow generated by the fan to carry carbon dioxide in a cyclical motion, oscillating and hanging onto the potato leaves for photosynthesis. This improves the auxiliary effect of the air supply mechanism on aeroponic potatoes and enhances the cultivation effect.

This invention provides a method for constructing ordered porous organic crystalline materials based on templates. This method utilizes supramolecular interactions such as hydrogen bonding, halogen bonding, and π-π interactions to successfully construct ordered porous structures, particularly ordered macroporous structures. This method innovatively solves the problem of achieving large-sized (diameter greater than or equal to 50 nanometers) ordered permanent pores in traditional (hydrogen-bonded) organic crystalline materials, while ensuring the material's excellent stability and ordered macroporous properties. The ordered porous (especially ordered macroporous) (hydrogen-bonded) organic crystalline materials constructed by this invention, due to their unique structure and properties, are expected to show broad application prospects in catalysis, biomedicine, and other fields.

The application discloses a multi-strategy unmanned aerial vehicle rapid obstacle avoidance path planning method based on dynamic ellipsoid sampling, which comprises the following steps: constructing an ellipsoid according to the starting point and the ending point of the unmanned aerial vehicle path planning, mapping a sampling point to the ellipsoid space to obtain a sampling point in the ellipsoid, and dynamically adjusting ellipsoid parameters through cyclic sampling to obtain an initial planning path and path nodes, which can focus on an effective area and improve sampling efficiency; a multi-strategy expansion mechanism is used to optimize the initial planning path nodes, and the convergence speed and obstacle avoidance ability are improved; potential parent nodes meeting the feasibility condition are searched in the neighborhood of the optimized path nodes, and the node with the minimum path cost is selected as a new parent node, and the new parent node is used to update the optimized planning path; a three-stage path smoothing strategy is used to smooth the updated optimized planning path, and an unmanned aerial vehicle planning path is obtained, so that the path feasibility and safety are ensured, and the path smoothness is improved.

The invention relates to a motor vehicle (10) having an internal combustion engine drive and / or an electric drive, having a windshield (12), a water tank (16) arranged in front of the windshield (12), which is designed to collect and discharge water occurring in the transition region between the windshield (12) and the front hood, wherein the water tank (16) has a base element (18) and a cover element (20), which form a suction chamber (22) for fresh air (FL), the cover element (20) and / or the base element (18) have or partially form a splash wall (24) extending along the windshield (12), which has splash wall channels (24) facing the windshield (12) for discharging water to the sides of the motor vehicle, a suction opening (26) for fresh air (FL) is formed in the cover element (20), and a water collection channel with a base surface (18f) is formed in the base element (18). It is provided that a fluid container (30) is arranged below the cover element (20), which has an injection section (32) which projects into the suction chamber (22) of the water tank (16), and a passage opening (34) is formed in the cover element (20) which leads to the injection section (32) of the fluid container (30).

The utility model discloses a space capsule convenient to disassemble, which relates to the technical field of sleep cabins and comprises a support framework, support legs, a modular assembly component and a storage component. The supporting legs are fixedly arranged at the bottom of the supporting framework, a cabin shell is fixedly arranged on the peripheral surface of the supporting framework, and a storage box is fixedly arranged at the bottom of the cabin shell; the bottom of the cabin body shell is fixedly provided with a modular assembling assembly convenient to disassemble. A storage and storage assembly facilitating storage of articles is fixedly arranged on the inner wall of the storage box. The motor drives the screw rod to drive the connecting cross rod and the driving side plate, and stable lifting of the lifting bottom plate and the storage bin is achieved through sliding of the guide rod in the inclined guide groove and linkage of the driving connecting rod and the driven connecting rod. A user can lift the storage space to a proper height only by pressing a key, so that the inconvenience of storing and taking articles by stooping or squatting is thoroughly avoided, and the operation convenience, safety and barrier-free universality are remarkably improved.

A processing device (1) and method for determining a position and / or orientation of a multi-hole grid template in a medical intervention procedure are disclosed. An anatomical space information processing unit (2) receives and / or processes data representing a target spatial volume in a body, and a grid position sampler (4) generates candidate positions of the grid template. A quality calculator (5) calculates for each candidate a quality measure indicative of a fitness of the candidate position of the grid template for the intervention procedure. A position selector (6) selects a position and / or orientation from the candidates based on the quality measures. For each candidate, a spatial relationship between each grid hole trajectory and the target volume is determined, and the quality measure takes at least this spatial relationship into account.

This utility model discloses a pre-cleaning device for pump casing surface treatment with a water-saving mechanism, including a cleaning chamber, a main pipe, a high-pressure hose, a high-pressure nozzle, a first water pipe, a second water pipe, a water supply pump, a spray chamber, a first drive motor, and a first fan. The main pipe is arranged on the upper surface of the cleaning chamber, and a water supply pipe is arranged on one side of the outer surface of the main pipe. A branch pipe is arranged at one end of the water supply pipe, and the first water pipe and the second water pipe are respectively arranged at one end of the branch pipe. One end of the second water pipe is connected to the water supply pump. High-pressure hoses are arranged on both sides of the main pipe. This utility model adopts a modular design. This pre-cleaning device for pump casing surface treatment with a water-saving mechanism, through innovative structure, magnetic adsorption, graded filtration and water return structure work together to build a high-efficiency composite filtration system, reduce the damage of impurities to the pump casing and equipment, improve the recycling rate of cleaning fluid, and reduce operating and environmental protection costs.

This invention discloses a method for the synergistic treatment of hexavalent chromium and sulfadiazine complex wastewater. The method utilizes a bimetallic node coupled with a metal-organic framework derivative electrode for the synergistic treatment of hexavalent chromium and sulfadiazine complex wastewater. The electrode includes a conductive substrate coupled with ZrO2 and ZnO. In this invention, the bimetallic node coupled with a metal-organic framework derivative electrode is used as the working electrode. The resulting photoelectrocatalytic system has advantages such as strong light utilization, fast electron transfer efficiency, and strong conversion effect between complex free radical chemistry and different active substances. It can not only achieve the synergistic degradation of hexavalent chromium and sulfadiazine in wastewater, but also simultaneously and efficiently remove both hexavalent chromium and sulfadiazine from the wastewater. It has advantages such as good recyclability, high removal efficiency, good cycle performance, and strong practical application, making it a widely applicable photoelectrocatalytic method with high practical value and application prospects.

This application provides an aviation fuel production system that utilizes water electrolysis to store electricity generated from renewable energy sources (such as solar and wind power) in an energy storage device. This electricity is then used to produce hydrogen and oxygen through further water electrolysis, effectively utilizing renewable energy and converting it into hydrogen energy, providing a stable source of raw materials for subsequent aviation fuel production. The oxygen generated through water electrolysis participates in the gasification process, reducing dependence on specific biomass feedstocks. The oxygen can also react with the carbon deposits generated in the reaction device to regenerate the catalyst, enabling its recycling. This process achieves a closed-loop conversion from renewable energy to aviation fuel, reducing carbon emissions and enhancing the sustainability of the entire production process. It provides the aviation industry with a green and sustainable fuel production method, promoting the decarbonization process of the aviation industry and reducing greenhouse gas emissions.

The present application relates to the technical field of early screening of osteoporotic vertebral compression fractures, and proposes an osteoporotic compression fracture screening method based on a multi-modal large language model, which takes patient posture images and action videos and other unstructured visual data as input, introduces a multi-modal large language model to quantitatively evaluate key functions such as patient posture alignment, motion coordination and pain-related responses from images and videos, and outputs in the form of standardized scores, automatically extracting structured features with clear clinical significance. Based on the above structured features, a machine learning model is constructed to assess the risk of OVCF, and combined with SHAP feature contribution analysis and decision tree visualization methods, the key discriminant factors and their action directions are clarified, realizing the interpretable expression of the prediction process. A safe, low-cost, interpretable and easy-to-promote technical solution is provided for the early screening of OVCF, which is suitable for various application scenarios such as community and home screening.

This utility model belongs to the field of recreational vehicle technology, specifically referring to a mobile barber recreational vehicle, including a carriage, a door on one side of the carriage, a hanging cabinet installed on the side of the top of the carriage, a light strip installed around the top of the carriage, multiple sets of touch mirror lights installed on the walls inside the carriage, multiple sets of lift-up chairs installed inside the carriage, each lift-up chair corresponding to a touch mirror light, a tool cabinet placed between adjacent sets of touch mirror lights, a shampoo bed for customers to wash their hair, and a resting couch inside the carriage. Its mobility breaks the limitations of traditional barbershops with fixed locations, allowing for flexible travel to different locations to provide door-to-door barber services to users in different areas, greatly saving users' time and energy traveling to barbershops, and improving the convenience and accessibility of barber services.

This invention relates to a robotic end effector for drilling curved parts and its drilling method, belonging to the field of robotic automated drilling and riveting. It includes: a frame unit, a feed unit, a spindle unit, a conformal controllable pressure foot unit, a normal alignment unit, and a measuring unit. The frame unit connects to the robot flange and provides mounting positions for other functional modules; the spindle unit is mounted on the movable module of the feed unit; the feed unit is mounted on the frame unit; the conformal controllable pressure foot unit is mounted at the foremost end of the actuator; the normal alignment unit is integrated into the conformal pressure foot unit; and the measuring unit is mounted on one side of the frame unit. This invention can adaptively conformally press the workpiece according to different curved surface structures, ensuring the stability of the robotic drilling system while significantly reducing workpiece deformation under pressure and improving drilling accuracy. The device has high integration, comprehensive functions, and is compatible with both curved and flat parts, significantly improving the processing efficiency and quality of components.

This invention relates to a storage station for an automated storage and retrieval system and a method for operating such a storage station. The storage station includes: a receiving area for receiving storage containers from the automated storage and retrieval system; a first pickup position for presenting the storage containers to a pickup operator, the first pickup position being arranged on a first side of the receiving area; a second pickup position for presenting the storage containers to a pickup operator, the second pickup position being arranged on a second side of the receiving area opposite to the first side; and a main carriage for transporting the storage containers between the pickup positions and the receiving area.

This invention provides an application of 1-O-acetyl-Inula japonica lactone, which is used to prepare drugs for improving acute lung injury. This invention utilizes network pharmacology, molecular docking, and molecular dynamics simulations to analyze that the Keap1-Nrf2 signaling pathway is a key potential target for Inula japonica in treating acute lung injury. The characteristic component of Inula japonica, 1-O-acetyl-Inula japonica lactone, exerts antioxidant and anti-inflammatory effects by targeting Keap1 and activating the Nrf2 signaling pathway. This invention provides important evidence for the application and new drug development of 1-O-acetyl-Inula japonica lactone.

This invention discloses an AR multi-person collaborative interactive projection system and method for public spaces, belonging to the field of AR multi-person collaborative interactive projection technology. It includes a multi-source spatial calibration module configured to extract static physical feature point clouds in the public space based on real-time environmental images and depth data collected by multiple AR devices, and to perform global registration of the feature point clouds using a weighted nearest neighbor iterative algorithm to generate a unified world coordinate system. This invention utilizes the multi-source spatial calibration module to perform global registration of static physical feature point clouds collected by multiple AR devices using a weighted nearest neighbor iterative algorithm to generate a unified world coordinate system, and detects the relative pose deviation between each AR device. When the deviation exceeds a preset threshold, a dynamic recalibration process is triggered, effectively solving the problem of inconsistent coordinate systems among multiple AR devices in public spaces, and significantly improving the spatial consistency and registration accuracy of multi-person collaboration.