15results about How to "Preserve integrity" patented technology

This invention discloses a machining process for tortuous parts made of fiber-reinforced composite materials, comprising the following steps: tooling design, part clamping and positioning, rough machining of area AB, failure handling, finish machining of area AB, rough machining of area C, finish machining of area C, removal of end faces, and finished product inspection. This invention provides a machining process for tortuous parts made of fiber-reinforced composite materials. By designing specialized tooling according to the part's shape and introducing failure handling, it reduces the waste of plywood raw materials compared to traditional machining processes. It also solves the problems of stress deformation and datum misalignment during the machining of tortuous parts made of fiber-reinforced composite materials, possessing significant economic and social value.

The utility model relates to a rice drying and dust removing device, including main box body and the drying cylinder of rotation connection in main box body, be equipped with a plurality of through -hole on the drying cylinder, the main box body upper end is connected with the air supply spare, the main box body bottom is connected with the collection spare, the technical scheme of the present application has the beneficial technical effect: through the rotation design and through -hole structure of drying cylinder, cooperate air supply spare and form dynamic air circulation, realize the fast and even drying of rice, utilize the dust and moisture that the collection spare's negative pressure adsorption effect synchronously removes the dust and moisture that rice surface adheres, significantly improve processing efficiency and rice cleanness. Moreover, the rotation design of drying cylinder makes rice in the drying process present the tumbling state, avoids the partial overheating or extrusion breakage and uneven drying problem caused by the long time stationary of rice in the traditional drying mode. Cooperate the even air supply of through -hole, maximum limit keeps the integrity and nutrient component of rice, has improved the evenness of drying. The problem that the prior art is prone to drying incompletely is solved.

The application discloses a self-anchoring structure for integral lifting of a steel box girder, comprising a bridge tower and a constructed steel box girder, wherein the bridge tower is provided with a ring-shaped self-anchoring support body, the bottom of the bridge tower is provided with a support bottom embedded steel plate, the ring-shaped self-anchoring support body is connected with the support bottom embedded steel plate and the constructed steel box girder, the top of the constructed steel box girder is provided with a self-anchoring truss, and the end of the self-anchoring truss towards a mounting surface is provided with lifting equipment. The application further discloses a self-anchoring method for integral lifting of a steel box girder, and the steps are as follows: 1, fixing the support bottom embedded steel plate at the bottom of the bridge tower; 2, installing the ring-shaped self-anchoring support body; 3, hoisting the prefabricated steel box girder in situ, and welding adjacent prefabricated steel box girders to make them into the constructed steel box girder; 4, installing the steel box girder inner support circular pipe and the self-anchoring truss on the constructed steel box girder; and 5, installing the steel box girder to be hoisted. The application can economically and rationally lift the steel box girder to a specified position, and can be widely applied in the field of building construction steel structure installation.

This application provides a method for preparing decellularized pericardium, employing a combination of specific pretreatment, sterilization, defatting, decellularization, and freeze-drying processes. This method effectively removes antigenic substances from animal tissues while maximally preserving the integrity of bioactive components and structures in the material. Simultaneously, the preparation process effectively incorporates inorganic metal ions, polysaccharides, and drugs to prevent adhesions. The resulting decellularized pericardium possesses both natural rough and smooth surfaces. The smooth surface has a dense fibrous structure, effectively blocking the invasion of adhesion tissues without affecting tendon function. The rough surface allows tissue ingrowth, facilitating rapid vascularization and tendon repair. Furthermore, the decellularized pericardium is loaded with functional components, further promoting tendon healing and preventing adhesions.

This invention discloses an environmentally friendly antistatic bubble bag, belonging to the field of bubble bag technology. It includes an upper bag body, a lower bag body, and a sealing assembly that cooperate with each other. Both the upper and lower bag bodies are made of biodegradable materials, and both have a bubble film layer laminated to their outer walls. Both the upper and lower bag bodies also have an antistatic coating on their outer surfaces. The sealing assembly is detachably connected to the joint between the upper and lower bag bodies, allowing for easy separation. The combination of biodegradable materials for the upper and lower bag bodies, the bubble film layer on the outer wall providing cushioning and protection, and the detachable design of the sealing assembly allows the bag to be disassembled when the contents are removed, fully exposing the inner wall of the bubble bag without the antistatic coating. This significantly accelerates the degradation rate of the biodegradable substrate, balancing practicality, antistatic safety, and lifecycle environmental adaptability.

The utility model discloses a fixed base plate with magnetic decoration hanging structure, relate to the field of building decoration, including fixed mechanism and the base mechanism of assembly in fixed mechanism inside, and assembly in the surface magnetic attraction hanger mechanism of base mechanism, fixed mechanism includes fixed frame, the inside fixed mounting of fixed frame is limit stop, and the front end inlaying of limit stop installs magnetic attraction strip, base mechanism includes the magnetic attraction base plate of adsorption in the front end of magnetic attraction strip, the inside fixed mounting of magnetic attraction base plate has magnetic attraction block, and magnetic attraction block is matrix type arrangement distribution, magnetic attraction hanger mechanism includes the magnet block of adsorption in the surface of magnetic attraction base plate, this fixed base plate with magnetic decoration hanging structure can not need to punch and utilize bolt fixed, effectively reduced the installation difficulty, can keep the integrity of wall surface, utilizes magnetic attraction base plate and can adsorb various shapes magnetic attraction hanger mechanism, improved use effect.

The application relates to an air leaf-removing type leafy vegetable batch purification and packaging integrated device, and relates to the technical field of agricultural machinery. The device is used for solving the problems of high leaf-removing damage rate, low treatment efficiency, poor equipment adaptability, low intelligent degree and narrow variety adaptability in the existing leafy vegetable purification and packaging process. The device comprises a conveying mechanism, a root-removing mechanism, a leaf-removing mechanism, a packaging mechanism and a controller. The conveying mechanism, the root-removing mechanism, the leaf-removing mechanism and the packaging mechanism are electrically connected with the controller. The root-removing mechanism is arranged on one side of the rear end of the root-removing conveying mechanism. The leaf-removing mechanism is arranged in the middle of the leaf-removing conveying mechanism. The packaging mechanism is arranged on the packaging conveying mechanism. The leafy vegetables are subjected to root removal through the root-removing mechanism on the root-removing conveying mechanism, then enter the leaf-removing conveying mechanism, are subjected to air leaf-removing through the leaf-removing mechanism on the leaf-removing conveying mechanism, then enter the packaging conveying mechanism, and are subjected to screening and weighing through the packaging mechanism on the packaging conveying mechanism, and are then packaged and bagged. The device is used for leafy vegetable processing.

This invention discloses a method for preparing purslane exosomes with anti-allergic effects and their applications, specifically relating to the field of natural active substances. The method includes washing fresh purslane and then juicing or homogenizing it, separating solid residue from the liquid juice to obtain a plant homogenate supernatant as a precursor. The precursor is then subjected to low-temperature differential centrifugation to remove cell debris and large particulate impurities, and the clarified supernatant is collected. The clarified supernatant is then filtered through one or more multi-stage filter membranes, with pore sizes selected from 5 μm, 1.2 μm, 0.45 μm, 0.22 μm, and 100 nm. Through optimized extraction processes, such as specific enzymatic hydrolysis steps, centrifugation conditions, and ultrafiltration technology, the extraction efficiency and purity of exosome-like nanovesicles are significantly improved. Compared to traditional extraction methods, this method can more accurately remove impurities, preserve the integrity and bioactivity of exosome-like nanovesicles, and ensure their stability and effectiveness in subsequent applications.

The utility model discloses a portable rapeseed quality nondestructive testing device, include: light source group, photoelectric sensor, sample cup, display screen, photoelectric converter, treater and power, the light source group includes LED array and light source fixer, the LED array includes a plurality of LED, and a plurality of LED annular symmetry is fixed on the light source fixer, the photoelectric sensor is fixed in the center of the light source fixer, and with same longitudinal axis on the sample cup, the display screen fixed setting is in the shell of device, the treater is fixed below the display screen, the treater is electrically connected between photoelectric converter, the photoelectric converter fixed setting is in the device bottom, the power provides power support for light source group, photoelectric sensor, display screen, photoelectric converter and treater through wire.

The utility model provides a kind of main body framework for vehicle auxiliary panel installation, auxiliary panel assembly and vehicle, which comprises: main body framework body, main body framework body includes connecting end, connecting end is configured as with the detachable connection of expansion framework;Wherein, main body framework can independently adapt to one specification auxiliary panel;When connecting end is connected with expansion framework, the expansion structure formed by the combination of main body framework and expansion framework can adapt to another specification auxiliary panel.The utility model can improve the defects of higher development and manufacturing cost of the existing main body framework for installing vehicle auxiliary panel.

This invention relates to the field of photoelectrochemical water splitting materials technology, and particularly to a surface-confined sulfur-doped metal oxide photoanode and its preparation method. The method includes growing a metal oxide nanostructure on an FTO substrate using a hydrothermal method to obtain a metal oxide photoanode; repeatedly performing drop-coating and ignition treatments on the surface of the metal oxide photoanode to obtain an ignition-treated metal oxide photoanode; the drop-coating and ignition treatments include drop-coating sulfur-containing organic matter to form a liquid wet film, and igniting the liquid wet film in an air environment; cleaning and drying the ignition-treated metal oxide photoanode to obtain a surface-confined sulfur-doped metal oxide photoanode. This method utilizes the localized thermal field generated by liquid film combustion to drive sulfur atoms to diffuse to the surface and near-surface layer of the metal oxide, achieving precise surface-confined gradient doping.

The invention discloses a power grid security situation prediction method and device, a medium and equipment, and relates to the technical field of power grid security. According to the invention, after the current power grid security situation data is obtained, different data change rules in the regular security situation data are further captured by extracting the regular security situation data describing long-term change and periodic change rules and the fluctuation security situation data describing non-stable fluctuation; the problem that only single-scale time sequence features can be extracted in a traditional security situation prediction method is avoided. Meanwhile, by extracting the non-stationary fluctuation in the fluctuating security situation data, the problem that the non-stationary fluctuation and local sudden change characteristics are difficult to effectively capture in a traditional security situation prediction method is avoided, and the prediction precision of the power grid security situation is improved.

The present application belongs to the field of roll grinding, in particular to a grinding method of gradient nano roll, comprising the following steps: a) placing the gradient nano roll to be ground in an electrolytic cell, the composition of the electrolyte used including acid, corrosion inhibitor and solvent; b) after the arrangement of step a) is completed, electrolytic corrosion is carried out on the surface of the gradient nano roll by power supply; in step b), the target corrosion depth of the gradient nano roll is predetermined, and the time of the electrolytic corrosion is calculated according to the formula; c) after the electrolytic corrosion is completed, the gradient nano roll after corrosion is ground; in step c), the porosity of the grinding wheel used is 15-20%; the temperature of the grinding is controlled below 200 DEG C. The method can realize efficient and low-cost grinding repair of high-hardness roll without damaging the gradient nano structure.

This invention provides a large-scale model interaction privacy protection system based on semantic understanding, relating to the field of interaction privacy protection technology. It includes: a context semantic management module, a dynamic privacy risk assessment module, an adaptive privacy protection module, and a large-scale model interaction adaptation module. This invention can collect multi-turn dialogues in real time, store semantic information hierarchically, distinguish and isolate privacy semantics from general semantics, and perform real-time privacy risk level assessments on user input, model output, and context. Based on the risk level, it automatically selects protection strategies such as desensitization, differential privacy noise addition, masking, or replacement. It generates responses based on the protected text and performs secondary verification of the output to ensure no privacy leakage, thus improving the reliability of large-scale model interaction privacy protection.

The utility model discloses a kind of anti-radiation wall internal multilayer steel plate positioning support device, it is related to building construction field, technical scheme is, including four embedded plates, one end support piece is respectively fixedly arranged on two embedded plates located at both ends, two end support pieces are oppositely arranged, several steel plates are placed between two end support pieces;Four side face support section steels are fixedly arranged on two embedded plates located in middle portion, two side face support section steels are respectively fixedly arranged on each embedded plate, two side face support section steels on same embedded plate are respectively located at both sides of steel plate;The top of two side face support section steels on same embedded plate is fixed through horizontal connecting beam;The top of two side face support section steels of same side is fixed through longitudinal connecting beam.The beneficial effects of the utility model are: the integrity of steel plate is retained, meet radiation shielding function;Vertical segmentation, layered installation reduces one hoisting weight, improve the safety of hoisting.