62results about How to "Significant progress" patented technology

The utility model relates to the technical field of medical supplies, in particular to degradable medicine-carrying hemostatic cotton with a double-layer structure, which comprises an internal hemostatic layer and an external functional layer wrapping the hemostatic layer, and the hemostatic layer and the functional layer are respectively formed by freeze-drying same polymer solutions with relatively high mass concentration and relatively low mass concentration. The functional layer is loaded with drugs, the porosity of the hemostatic layer is 60%-80%, and the porosity of the functional layer is 80%-90%. The high-concentration and low-porosity inner hemostatic layer provides mechanical compression force to play a role in rapid hemostasis in the initial stage, the low-concentration and high-porosity outer functional layer can be rapidly degraded, both compression strength and degradation speed are considered and balanced, meanwhile, the outer functional layer is used for loading drugs, and the outer functional layer has the characteristics of high porosity and rapid degradation, so that the effect of rapid hemostasis in the initial stage is achieved. The effect of rapidly releasing the medicine is achieved, it can be ensured that the medicine can be rapidly released to the bleeding part, and wound healing is promoted.

The present application relates to the field of gas turbine technology, and more particularly to a dynamic balancing method for the misalignment vibration problem of a gas turbine unit shaft system, which comprises the following steps in sequence: step A, implementing a first dynamic balancing weight scheme on a first weight plane of the gas turbine rotor; and step B, implementing a second dynamic balancing weight scheme on a second weight plane of the gas turbine rotor, wherein the weight angle of the second dynamic balancing weight scheme is 180 degrees different from the weight angle of the first dynamic balancing weight scheme. The dynamic balancing method for the misalignment vibration problem of the gas turbine unit shaft system according to the present application selects two weight planes to implement opposite weight, and the generated weight bending moment can balance the additional bending moment, so that the vibration condition of the unit is obviously improved. Different from the traditional influence coefficient method, the dynamic balancing method according to the present application directly attacks the essence of the vibration problem, reduces the number of starting machines and the resulting psychological pressure, saves considerable test cost, and has good application effect and promotional value.

The invention discloses a semantic consistent double contrast learning long tail identification method, and belongs to the technical field of computer vision. Comprising the following steps: step 1, designing a double contrast learning framework, and optimizing a feature space through fusion supervision contrast learning; and meanwhile, a self-supervised comparative learning improvement model is introduced to enhance the feature invariance learning ability of data enhancement transformation. Step 2, designing a prototype-contrast dynamic semantic alignment strategy, adaptively correcting label noise caused by inter-class imbalance by utilizing class prototypes and classification probability in a semantic space, and coordinating the prototype-contrast dynamic semantic alignment strategy of feature space consistency through constraint based on the prototype; and 3, designing a double-branch decoupling classifier, dynamically adjusting the weight of the classifier in combination with a periodic cumulative learning strategy, realizing attention dynamic migration and tail category enhancement, inhibiting a head category dominant effect, and enhancing tail category representation learning. And therefore, the recognition performance of the long tail category is further improved.

The invention discloses a fluid pulsation accelerator architecture for reinforcement learning of a large language model, and belongs to the technical field of artificial intelligence hardware acceleration. The system aims at solving the problems that when a current universal processor executes an RLHF working load, an instruction driving normal form is not matched with data flow calculation, fixed parallel granularity cannot adapt to a dynamic load, and the efficiency is low due to the fact that a framework does not sense data statistical characteristics. The core of the system is a liquid systolic array calculation fabric capable of being dynamically reconstructed, execution is triggered through data flow, and kernel boundaries and instruction overhead are eliminated. According to the system, a global lookup table subsystem is fused, and nonlinear calculation is optimized through merging query and parallel lookup by using data distribution prior; and a dynamic scheduling unit is configured, and elastic parallelism is realized by adopting a resource allocation algorithm supporting work stealing. According to the method, the throughput and the energy efficiency of RLHF training and a large language model reasoning stage can be remarkably improved, and a new design normal form is provided for a next-generation AI special computing architecture.

This utility model discloses an engine cylinder head and its electronic fuel injection system, including a cylinder head body. The cylinder head body has an intake manifold, an exhaust manifold, and a connecting surface for connection and mating with the engine block. The cylinder head body has a fuel jet channel communicating with the intake manifold. A cylinder head fuel jet clearance groove is provided on the inner wall of the intake manifold near the inner end of the fuel jet channel. An intake valve is installed on the cylinder head body, with its valve head installed in an intake valve seat hole. An intake pipe is installed on the cylinder head body on one side of the intake manifold. An injector seat is provided on the intake pipe, and an injector mounting hole communicating with the fuel jet channel is provided on the injector seat. An injector is installed in the injector mounting hole, and the linear distance between the injector nozzle and the center of the valve head is 70mm to 110mm. By precisely defining the position and mating relationship between the components, the overall performance of the engine is maximized.

The efficient cutting and separating device comprises a left inclined sliding table, a right inclined sliding table, two arc-shaped tensioning plates, a cutting motor, a cutting wheel and a supporting frame, two parallel rotating shafts are arranged between the left inclined sliding table and the right inclined sliding table, the two arc-shaped tensioning plates are oppositely arranged, rotating holes are formed in the lower ends of the arc-shaped tensioning plates, and the arc-shaped tensioning plates are arranged in the rotating holes. The two arc-shaped tensioning plates are rotationally connected with the rotating shaft through the rotating holes, annular grooves are formed in the two ends in the rotating holes, and torsion springs are fixedly connected between the annular grooves and the rotating shaft. According to the efficient cutting and separating device for goose slaughtering, not only can the goose head and the goose body be efficiently separated, but also the efficiency of goose slaughtering operation and the product quality are improved, and remarkable progress is achieved.

The utility model relates to the technical field of straw secondary processing, in particular to a front cutting and extruding device for crushing wet straw, which comprises a shell, a cutting and extruding device, a cutting and extruding device, a cutting and extruding device and a cutting and extruding device, the two-way reamer mechanism is arranged in the shell and is in transmission connection with a driving device fixed on the rack, and the two-way reamer mechanism comprises a first reamer assembly and a second reamer assembly which are opposite in rotating direction; the first reamer assembly comprises a rotatable left-hand hob, the second reamer assembly comprises a rotatable right-hand hob, and the left-hand hob and the right-hand hob are driven by the driving device to move oppositely to form hobbing of straw. The front cutting and extruding device for crushing the wet straw solves the problems that in the processing and cutting process of the wet straw, vibration of equipment is large, impact borne by a cutter is large, the cutter is prone to abrasion, and the service life is short.

This invention provides a real-time bending and shaping method for virtual plants based on adjustable stiffness weights. The method involves configuring virtual plant parameter information and generating a parameterized plant model. The parameter information includes at least plant parameter information, plant control parameter information, and environmental parameter information. When the interactive mode is activated and the plant end is dragged, the end of the plant model is acquired and fixed at the target dragged position. Based on the target dragged position, the dragged virtual plant structure undergoes weighted inverse dynamic bending processing and interpolation. Based on the updated dragged virtual plant structure, other branch structures of the virtual plant are updated synchronously. The overall updated virtual plant structure is subdivided and subjected to Catmull-Rom curve interpolation. The interactive mode is then terminated, and the currently updated virtual plant structure is solidified. This invention uses gradual stiffness, mass curves, and weak bending moment constraints to make the bending shape of the virtual plant highly similar to the stress on real branches.

This invention proposes a large-scale, shallow, circular silo-type self-regulating pressure system, comprising a silo body. Its key feature is the inclusion of an elastic device that can contract or expand under pressure. This elastic device is located at the top of the silo body and is connected to an air inlet pipe. The end of the air inlet pipe extends out of the silo body and is connected to an exhaust pipe and an intake pipe, respectively. The exhaust pipe is equipped with a one-way exhaust valve, and the intake pipe is equipped with a one-way intake valve. The end of the intake pipe is connected to a high-pressure gas source, providing gas at a temperature of 15 to 25°C. This invention effectively balances the pressure inside and outside the silo while also considering temperature-controlled grain storage processes, preventing overheating inside the silo while balancing the pressure difference. Furthermore, it is easy to install and can be retracted when not in use to reduce space occupancy within the silo.

The utility model relates to the technical field of compressors, in particular to a crankshaft which comprises a crankshaft body and an eccentric portion arranged on the crankshaft body, and the crankshaft body is provided with a shaft plane perpendicular to the direction, deviating from the crankshaft body, of the eccentric portion. The eccentric side part is located on one side of the shaft plane and deviates from the crankshaft body, the eccentric opposite side part is located on the other side of the shaft plane, and holes distributed in a dot matrix mode are formed in the eccentric side part. The utility model further relates to a damping device of the compressor, the damping device comprises the crankshaft and a piston arranged on the eccentric part of the crankshaft in a sleeving mode, and the overall mass center of the eccentric part and the piston is located on the rotating central axis of a crankshaft body. The utility model further relates to a compressor comprising the damping device. The holes distributed in the dot matrix mode are formed in the eccentric side portion, the mass of the eccentric side portion is reduced, the eccentric mass of the crankshaft eccentric portion can be reduced, the distance of the mass center of the crankshaft eccentric portion deviating from the rotating center axis of the crankshaft body is shortened, and the running stability of the compressor is improved.

The invention relates to the technical field of garment sewing, in particular to a cloth and sewing line colorimetric method, which comprises the following steps: acquiring a cloth image, extracting cloth colors of the cloth image based on a plurality of color extraction algorithms, and obtaining a cloth color value corresponding to each color extraction algorithm; obtaining suture data in a suture database, wherein the suture data comprises suture color values of different colors and corresponding suture color numbers; performing color difference calculation on the cloth color value corresponding to each color extraction algorithm and the stitch color value of the stitch data to obtain a similarity value; obtaining weight information of each preset color extraction algorithm, and calculating and obtaining a weighted similarity value based on the weight information and the plurality of groups of similarity values; and obtaining the sewing line color number with the highest similarity based on the weighted similarity value. The intelligent colorimetric operation is realized, and the time consumption and the difference of manually finding the nearest color sewing line are reduced.

The application belongs to the technical field of lithium ion batteries, and particularly relates to a composite negative electrode sheet and a preparation method and application thereof. The composite negative electrode sheet comprises a current collector and a negative active material layer coated on the surface of the current collector; the negative active material layer comprises a negative active material, a conductive agent and a binder; the negative active material comprises graphite and a silicon material; and the particle size ratio of the graphite and the silicon material is (0.95-1.05):1. The application has the beneficial effects that the composite negative electrode sheet is designed by matching the particle size grading and morphology of the graphite and the silicon material, the electrode is comprehensively optimized from multiple aspects such as microstructure, mechanical properties and electrochemical properties, the rate performance and cycle stability of the battery are significantly improved, outstanding substantial features and significant progress are achieved, and the application has high industrial application value and wide market prospect.

The invention provides a method for monitoring and cleaning dirt of heat exchange equipment, which comprises the following steps of: 1) dividing a cleaning interface of large-section heat exchange equipment into a plurality of cleaning areas in array distribution according to the cleaning capability of a cleaning robot, and then dividing each cleaning area into a plurality of blockage point detection areas; (2) at least one blocking point detection sensor is arranged at the movable end of the cleaning robot; (3) in the detection mode, only a moving mechanism of the cleaning robot is started, a cleaning module is closed, the cleaning robot is controlled to carry a blocking point detection sensor to rapidly sweep each blocking point detection area, and the blocking condition of each blocking point detection area is detected; 4, according to the detection result of the blocking point detection sensor, the smudginess degree of the current blocking point detection area is judged, and the result is output. The method has the advantages that on-demand cleaning of the local area is achieved, and the cleaning efficiency is improved.

The application discloses a nano-silicon dioxide doped PVDF-HFP radiation refrigeration packaging film and a preparation method thereof, and belongs to the technical field of flexible packaging materials and radiation refrigeration functional materials. The application is prepared by using polyvinylidene fluoride-hexafluoropropylene copolymer (PVDF-HFP) as a base body, using micrometer silicon dioxide (H-SiO2) covalently grafted and modified by hexadecyl trimethoxysilane as a functional filler, and through a solution blending-normal temperature volatilization induced phase separation one-step method. Through a specific modification system and process design, the application synchronously realizes the synergistic optimization of the thin film solar light reflection ability, the hydrophobic self-cleaning performance, the mechanical flexibility and the thermal stability. The preparation process of the application is green and simple, the raw material cost is low, and the application can be produced in a large scale and continuously. The prepared flexible film can be widely applied to fresh cold chain temperature control packaging, medicine constant temperature storage and transportation, and passive temperature control of outdoor products.

The invention provides an iterative proportion optimization cigarette formula design method based on chemical components and generalized inverse, which comprises the following steps: collecting a target tobacco leaf sample and an alternative library single-material tobacco sample, scanning the tobacco sample by using a near-infrared spectrometer to obtain a near-infrared spectrum, and calculating the target tobacco leaf sample and the alternative library single-material tobacco sample according to the near-infrared spectrum; the method comprises the following steps: acquiring various chemical component data of a tobacco sample by adopting a near-infrared model, and preprocessing the chemical component data; according to the lower limit of the material of the single-material cigarettes in the formula design requirement, deleting the single-material cigarettes with the inventory less than the lower limit from the alternative library; according to the upper limit of the material of the single-material tobacco in the formula design requirement, the inventory of the single-material tobacco with the inventory exceeding the upper limit is adjusted to the upper limit; multiplying the chemical component content of the target tobacco leaf sample by the target dosage; and multiplying the chemical component content of the single tobacco sample by the adjusted stock, and operating for multiple times according to a configured formula design algorithm based on the chemical components and generalized inverse and proportion iteration to generate a plurality of design formulas.

The application discloses an environment-friendly municipal sludge drying system, and belongs to the sludge treatment process field, which is suitable for drying treatment of municipal sludge. The drying system comprises a hot blast furnace, a heat exchanger, a condenser, a collector, a dryer and a waste gas treatment device, and can further comprise a high-temperature mixing chamber. The dryer adopts a gas drying mode, a material inlet of the dryer receives treated wet sludge, a gas source inlet receives high-temperature drying wind, and the high-temperature drying wind is used for drying treatment of the wet sludge. A material inlet of the collector is connected with a dried material outlet of the dryer, dried products are collected, and low-temperature wet wind is discharged. The condenser condenses the low-temperature wet wind to obtain condensed water and low-temperature drying wind. The heat exchanger exchanges heat between high-temperature hot wind and low-temperature drying wind to obtain waste gas and high-temperature drying wind. The hot blast furnace is connected with cold wind and heated to provide high-temperature hot wind for the heat exchanger. The sludge drying system has the advantages of high drying efficiency, stable and safe operation, energy saving and environmental protection, cost saving and the like.

This invention discloses a novel foldable backlight system suitable for head-up display (HUD) systems, comprising: a lamp panel assembly; a collimating lens for collimating white light emitted from LED beads; a spherical reflector for reflecting and shaping the collimated light; a beam expander for diffusing and homogenizing transmitted light; and an S-polarizing filter for filtering P-polarized light within the backlight. The light path is as follows: white light emitted from the lamp panel assembly passes through the collimating lens, is projected onto the spherical reflector, reflected by the beam expander, transmitted through the S-polarizing filter, and finally illuminates a 4.1-inch TFT screen. This invention also discloses a motor vehicle incorporating the above-described novel foldable backlight system, and a backlight display method. The HUD backlight system of this invention has the advantages of reducing surface heat of the TFT screen and minimizing the size of the PGU (Power Gear Unit).

The invention provides a self-diagnosis method and a gas sensor module, and the method comprises the steps: periodically applying an excitation signal with a specific frequency to an auxiliary electrode of an electrochemical gas sensor, or applying an excitation signal for scanning in a preset frequency range, and collecting dynamic impedance spectrums of the electrochemical gas sensor in different periods; analyzing the characteristic change of the dynamic impedance spectrum, extracting preset key parameter evolution data, comparing the key parameter evolution data with a preset health reference value, and diagnosing whether the electrochemical gas sensor is in a performance degradation fault state or not. According to the method, internal degradation caused by sensitivity reduction such as catalyst poisoning and electrolyte drying can be accurately captured, the gas concentration value is dynamically corrected in real time, measurement deviation caused by sensitivity reduction is effectively counteracted, and it is ensured that the sensor can output high-precision data from the initial state to the later attenuation period.

This invention discloses a universal concrete slab system with no-removal bottom formwork, its construction method, and a carbon emission reduction calculation method, belonging to the field of prefabricated building technology. The core system consists of prefabricated no-removal bottom formwork units, a coordinating load-bearing steel reinforcement skeleton, a post-cast composite concrete layer, and a support and force transmission system. These are fixedly connected to bidirectional reinforcing bars via embedded connectors to form a coordinating load-bearing skeleton, ensuring a firm bond between the prefabricated bottom formwork and the post-cast layer, creating an overall load-bearing structure with the same strength as a fully cast-in-place slab of the same thickness. The prefabricated bottom formwork can be finished with white cement, achieving a unified attribute of temporary formwork, permanent structure, and finished decorative surface. The supporting construction method is designed to fit the specific characteristics of the system, significantly simplifying construction procedures. The carbon emission reduction calculation method is tailored to the dual / triple attributes of the no-removal bottom formwork, with specific calculation rules. This invention features a safe and reliable structure, wide applicability, and outstanding green and low-carbon effects, making it suitable for various civil and industrial building projects and complying with dual-carbon policy requirements.

The application discloses a chemical precipitation method using magnesium oxide and a metal hydroxide product, and the chemical precipitation method comprises the following steps: S1, obtaining a pre-reaction solution capable of being used for a precipitation reaction, and obtaining a pulp solution containing ions of a target metal in the pre-reaction solution; S2, mixing magnesium oxide powder and the pulp solution, and obtaining a first slurry through a pulp treatment; and S3, putting the first slurry into a reactor to perform a precipitation reaction, and generating a precipitated slurry containing a metal hydroxide of the target metal. In the magnesium oxide powder, a first part of the magnesium oxide powder has a higher average activity than that of the whole magnesium oxide powder. The method is used to solve the problem of serious activity attenuation of the magnesium oxide slurry, improve the precipitation efficiency of the target metal in the precipitation reaction, increase the content of the target metal in the metal hydroxide product, and reduce the single consumption of the magnesium oxide and the content of magnesium impurities in the product.

The utility model relates to a spot lamp in a double-light-emitting mode. The spot lamp comprises a mounting base, a first light-emitting assembly and a second light-emitting assembly, wherein the first light-emitting assembly and the second light-emitting assembly are both arranged on the mounting base. The second light-emitting assembly is annular and sleeves the outer side of the first light-emitting assembly; a light reflecting plate is arranged between the first light-emitting assembly and the second light-emitting assembly. The end, away from the mounting base, of the light reflecting plate inclines towards the second light-emitting assembly. When the mounting base is mounted in place, the inclined surface of the light reflecting plate reflects light emitted by the second light emitting assembly to the periphery of the mounting base; the spotlight provided by the utility model can simultaneously give consideration to key lighting and the brightness of the surrounding environment, and has better practicability.

This invention relates to a distributed energy collaborative optimization method based on a cloud-edge-device architecture, belonging to the field of smart microgrid technology. Technical solution: S1. Define a four-layer cloud-edge-device architecture; S2. Information transmission stage: Information is reported upwards and circulated and transmitted at the same level; S3. Demand optimization stage: Demand is decomposed downwards and optimized collaboratively at the same level; S4. Energy flow stage: Energy is aggregated upwards and interacts and communicates at the same level. This invention, through its designed four-layer cloud-edge-device architecture, enables distributed energy to shift from centralized control to active participation in demand response. Based on this, a distributed energy collaborative optimization method based on the cloud-edge-device architecture is further designed, achieving full-domain collaborative optimization of distributed energy. Firstly, it reduces the response error of distributed energy; secondly, it effectively reduces the response time of distributed energy, solving the problem of excessive computing power in traditional centralized control; and thirdly, it reduces the operating cost of distributed energy, addressing the high operating cost of distributed energy.

The invention provides a low-temperature vacuum extraction system for soil or plant moisture, which is characterized in that a pre-cooling / heating table, a refrigeration table and a plurality of rod core type pipelines are arranged in automatic extraction equipment, placement positions corresponding to sample tubes are arranged in the rod core type pipelines, and collection test tubes are detachably arranged at the lower parts of the rod core type pipelines; a placement through hole is formed in the pre-cooling / heating table, a pre-cooling pipeline and a heating pipe are wound in the pre-cooling / heating table and correspond to the middle of the rod core type pipeline, a groove is formed in the refrigerating table, and a refrigerating pipeline is wound in the refrigerating table and corresponds to the groove; the refrigerant source is communicated with the pre-cooling pipeline and the refrigerating pipeline; a lifting platform is arranged at the upper part of the automatic extraction equipment, a vacuumizing system is arranged in the lifting platform, a floating end cover is arranged at the bottom of the lifting platform corresponding to a top port of the rod core type pipeline, and the floating end cover is communicated with the vacuumizing system; a control unit is arranged on the automatic extraction equipment and is in control connection with the vertical lifting mechanism and the heating pipe. The method has the advantages of high efficiency, low leakage rate, safety and convenience.

This invention provides an electromagnetic zoom shockwave handpiece, comprising a handpiece body, an electromagnetic excitation mechanism, an electromagnetic generating mechanism, an electromagnetic induction mechanism, and a variable focusing mechanism. The handpiece body houses a power module and a control unit. The electromagnetic excitation mechanism is located at one end of the handpiece body. The control unit controls and connects to the electromagnetic excitation mechanism. The electromagnetic excitation mechanism drives and connects to the electromagnetic generating mechanism, which in turn drives and connects to the electromagnetic induction mechanism. The electromagnetic induction mechanism then drives and connects to the variable focusing mechanism. This electromagnetic zoom shockwave handpiece facilitates equipment installation; it also provides constant energy, quantifiable output energy, and intelligent zoom, effectively detecting deep, latent trigger points that cannot be detected by palpation; it requires no treatment head replacement, has no consumables, and requires low maintenance.

The application provides a venipuncture training and examination model simulation arm module, which simulates the forearm structure of an adult, and is sequentially provided inside a simulation arm body from outside to inside with a simulation skin layer made of flexible high polymer elastic material and detachably installed on the outer surface of the simulation arm, a simulation fat layer provided inside the simulation skin layer and used for simulating the buffer resistance of subcutaneous fat tissue, a simulation muscle layer provided inside the simulation fat layer and used for supporting the arm shape and providing puncture resistance, and a simulation venous vessel network embedded between the simulation fat layer and the simulation muscle layer according to the real anatomical running, wherein the simulation skin layer, the simulation fat layer, the simulation muscle layer and the simulation venous vessel network are all configured as detachable modules, and can be replaced with combinations of different thickness, hardness and venous elasticity parameters according to the training requirements.

The application discloses a small-capacity battery one-time endurance power supply pneumatic flap control device and method. The application forms a critical working time window power supply through precise control of the flap closing / opening critical working time window energy-saving mode, greatly reduces the standby power supply working time of the equipment and its useless standby power consumption; through precise control of the flap closing / opening critical working pressure energy-saving mode, the working pressure of the pneumatic flap closing / opening is greatly reduced, and its useless pressurization power consumption is greatly reduced. The application can greatly reduce the useless power consumption of the equipment, realize the limit micro-power consumption work of the pneumatic flap, the annual power consumption is less than 10 VAh / year, the one-time endurance working time of the battery is more than 10 years, the battery is free from replacement and charging maintenance for a lifetime, the installation, use and maintenance are very simple, the low-cost large-scale popularization and application are realized, and the sewage discharge and waterlogging drainage control of the urban drainage network terminal pneumatic flap can be effectively implemented.

The invention provides neodymium-containing high-corrosion-resistance laser cladding powder for a mining hydraulic oil cylinder and a cladding method, the neodymium-containing high-corrosion-resistance laser cladding powder comprises Nd2O3 powder and alloy powder, the mass percent of the Nd2O3 powder is 0.4%-1.0%, and the balance is the alloy powder; the alloy powder comprises the following components in percentage by mass: 19.2%-20.8% of Cr, 4.0%-8.0% of Ni, 0.3%-0.75% of Mn, 4.5%-8.5% of Mo, 0.04%-0.08% of C, 1.35%-1.52% of Si and the balance of Fe. In an inert atmosphere, the neodymium-containing high-corrosion-resistance laser cladding powder for the mining hydraulic oil cylinder is used for carrying out laser cladding on the outer surface of the mining hydraulic oil cylinder. The cladding method also has the advantages of moderate hardness, good wear resistance, strong purification capability and low hot crack sensitivity on the premise of ensuring that the cladding layer has better corrosion resistance.

The utility model discloses a uniform cooling and quenching device for an aluminum alloy cast rod, which comprises a support frame, the top of the support frame is provided with a workbench, the workbench is provided with a driving mechanism and a lifting tooth transmission part, and the driving mechanism is in transmission connection with the lifting tooth transmission part; the upper quenching shell is arranged at the bottom of the workbench and is in transmission connection with the lifting gear transmission part, the upper quenching shell is provided with an upper spraying chamber with an opening in the bottom, and an upper spraying part and an upper air spraying part are mounted in the upper spraying chamber; the lower quenching shell is arranged below the upper quenching shell and is correspondingly mounted, and the lower quenching shell is provided with a lower spraying chamber of which the top and the two ends are open; the lower air spraying piece is mounted at the top of the lower spraying chamber; the guide rolling spraying piece is mounted at the top of the lower air spraying piece; and the middle spraying piece is mounted at the top of the lower spraying chamber. The aluminum bar quenching device has the characteristics of quickly and efficiently quenching an aluminum bar and the like.

The application discloses a target orbit maneuver passive detection method and system based on double attention contrast learning, and belongs to the technical field of space situation awareness. The application proposes a technical scheme combining square root cubature Kalman filtering and DC detector double attention contrast learning neural network by only using right ascension and declination angle measurement data under the conditions of small impulse maneuver and long-distance passive angle measurement of non-cooperative spacecraft in the geostationary orbit. By establishing an orbit dynamics and angle measurement model, filtering output normalizing innovation, constructing a sample database and training a double attention network to obtain an abnormal threshold, whether the target has an orbit maneuver and the maneuver time point are finally determined according to the abnormal score and output. The application does not require range and speed measurement data, reduces the requirements of spaceborne equipment, can accurately capture small impulse maneuvers of 0.5-2 m / s, the detection success rate is increased by more than 10% compared with traditional methods, the time error is reduced by more than 100 s, and is suitable for real-time passive detection of non-cooperative targets in long-distance, high-orbit, near-circular and near-coplanar orbits, thereby providing key support for spacecraft safety warning.

The application discloses a code vulnerability arbitration detection method fusing an attention mechanism and counterfactual reasoning, and comprises the following steps: obtaining source code to be detected; inputting the source code to be detected into a lightweight special-purpose vulnerability detection model and a large language model respectively to obtain first vulnerability judgment results and second vulnerability judgment results; obtaining an attention weight distribution of the lightweight special-purpose vulnerability detection model according to a consistency comparison result of the first vulnerability judgment results and the second vulnerability judgment results; locating a key code area in which the lightweight special-purpose vulnerability detection model makes a decision according to the attention weight distribution; obtaining a counterfactual code variant generated by the large language model according to the key code area; and inputting the counterfactual code variant and the original source code into the lightweight special-purpose vulnerability detection model respectively to obtain an arbitration detection result. The application can automatically and deeply analyze the root cause of the disagreement when the model judgment is inconsistent, and make a more reliable final judgment through a structured debate process.