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175results about How to "Good condition" patented technology

Air leakage detection device for air pipe

The invention discloses an air pipe air leakage detection device which comprises a metal plate base, supporting legs are welded and fixed to the metal plate base, and telescopic shafts are slidably connected to the supporting legs. The test panel is rotationally connected to the telescopic shaft, an assembly plate is detachably connected to the test panel, a plurality of mounting discs are arranged on the surface of the assembly plate, and test pipes are mounted on the mounting discs; the air valve assembly is located on each installation disc. A plurality of test tubes can be simultaneously measured by the plurality of mounting discs in batches, so that the working efficiency of the test is improved. The connecting pipelines of the air valve assemblies are mutually connected in series, so that the interiors of the test pipes are communicated, when the interiors of the test pipes are inflated, air can be conveyed into the test pipes through series connection of the air valve assemblies, and therefore sealing performance testing is carried out in batches. And the height position of the detachably connected assembly plate can be adjusted on the test panel, so that the installation height of the test tube is adjusted, and the practical function is further improved.
Owner:HANGZHOU CHANGHAI POWER TECH CO LTD

Self-adaptive service life prolonging control method for wind turbine generator based on reinforcement learning

The invention relates to the field of service life prolonging control, and discloses a reinforcement learning-based self-adaptive service life prolonging control method for a wind turbine generator, which is used for providing a reliable technical means for prolonging the service life of the wind turbine generator. Comprising the steps of collecting a unit operation state and key component health parameters, and generating multi-dimensional state information; establishing a damage evolution model, predicting the residual life and generating a health degree index; designing a multi-objective optimization strategy, and solving to generate a cooperative control instruction; after the instruction is executed, the model and the strategy are dynamically updated based on unit state feedback, and a closed-loop control system is formed. The service life of the wind turbine generator is effectively prolonged.
Owner:DATANG QIANAN NEW ENERGY POWER GENERATION CO LTD

Wireless transmission-based otoacoustic screening instrument probe

The utility model relates to the field of otoacoustic screening equipment, in particular to an otoacoustic screening instrument probe based on wireless transmission, which comprises an otoacoustic screening instrument probe body, an indicating lamp and an otoacoustic collector, and the bottom of the otoacoustic screening instrument probe body is provided with an accommodating cavity for accommodating a battery; a clamping device is arranged on the inner wall of the containing cavity, an outer clamping seat is arranged on the outer side of the battery, and the outer clamping seat is arranged on the inner wall of the containing cavity through the clamping device; the indicating lamp and the otoacoustic collector are arranged on the two sides of the otoacoustic screening instrument probe body respectively. A positive electrode contact communication point and a negative electrode contact communication point are arranged at the bottom of the otoacoustic screening instrument probe body, the positive electrode contact communication point and the negative electrode contact communication point are both connected with the otoacoustic collector and the indicating lamp, and when the battery is clamped in place, the positive electrode and the negative electrode of the battery are connected with the positive electrode contact communication point and the negative electrode contact communication point respectively.
Owner:LUXI MEDICAL EQUIP (GUANGDONG) CO LTD

Non-backflow fishing lure and method of making same

ActiveCN118765879BStay in the watergood conditionWheat germZoology
The application discloses a non-water-returning fish bait and a preparation method thereof. The bait comprises the following components in percentage by weight: wheat germ powder 10-20%, snowflake powder 10-20%, shell powder 5-15%, wheat bran 10-25%, fermented rice husk powder 15-30%, and animal protein powder 8-20%. By adding various nutritional ingredients, the bait can maintain the state of entering water, and will not return water for a long time after being formed into a group. When used, the bait does not need to be kneaded and adjusted again, has good state maintaining property, and improves the fishing experience.
Owner:HUBEI LONGWANGHEN FISHING TACKLE GRP CO LTD

Cotton one-film six-row wide-narrow-row close planting and staggered planting method

The invention discloses a one-film six-row wide-narrow-row close-planting staggered planting method for cotton, which comprises the following steps: measuring the soil nutrient content of a region to be planted, calculating the comprehensive score of soil fertility, selecting a basic plant spacing according to the tillering coefficient of a cotton variety, fitting an accumulated temperature correction function, calculating a predicted value of the tillering rate, and calculating a dynamic offset in combination with the latitude of a planting field. Determining a narrow row spacing and a sowing depth according to the dynamic offset, extracting a growth picture of the same variety of cotton in the same region after the flowering and boll-setting period, extracting a planting row spacing mean value of the canopy coverage in a preset range as a wide row spacing, planting cotton according to the basic plant spacing, the narrow row spacing, the wide row spacing and the sowing depth, and monitoring the canopy photosynthetically active radiation in real time. And dynamically regulating and controlling a drip irrigation fertilization strategy according to the photosynthetically active radiation of the canopy. By means of the method, the photosynthetic efficiency, the water and fertilizer utilization efficiency and the stress resistance of cotton groups can be improved, a brand new technical path is provided for high-yield and high-quality cultivation of cotton, and the method has important significance in promoting intelligent transformation of the cotton planting industry.
Owner:博尔塔拉蒙古自治州农业技术推广中心

Electronic cigarette battery short circuit troubleshooting tool

This utility model discloses a short-circuit troubleshooting tool for electronic cigarette batteries. It relates to the field of electronic cigarette testing technology and includes a testing component. The testing component has a replacement component at its bottom. The testing component includes a handle, a connecting part at its bottom, a mounting block at the bottom of the connecting part, and a connection hole at the bottom of the mounting block. The replacement component includes a replacement head, a mounting slot at its top, and a connection plug fixedly installed inside the mounting slot. The mounting block is inserted into the mounting slot, and the connection plug is inserted into the connection hole. The replacement head has a testing head at its bottom, a positioning head at its bottom, and an electrode contact at its bottom. This utility model allows for convenient replacement of the replacement component according to the electronic cigarette battery to be tested, facilitating short-circuit troubleshooting and possessing high practical value.
Owner:DONGGUAN SIDI ELECTRONICS CO LTD

Dynamic paper stabilizing system and dynamic paper stabilizing method of rewinding machine

PendingCN121872163ARealize automatic paper stabilization controlSuppress flutterDomestic applicationsWebs handlingStabilization controlControl engineering
The invention provides a dynamic paper stabilizing system and a dynamic paper stabilizing method of a rewinding machine. The dynamic paper stabilizing system comprises a rack, a plurality of groups of core rollers, a plurality of groups of guide rollers, a paper stabilizing mechanism and a controller, wherein the paper stabilizing mechanism is composed of a rolling diameter detection device and an execution assembly, the rolling diameter detection device monitors the diameter change of a raw paper roll in real time, the execution assembly comprises a supporting frame, a driving piece and a paper stabilizing rod, and the controller dynamically adjusts the position of the paper stabilizing rod according to a detection signal to enable the paper stabilizing rod to be close to or away from the paper surface. Therefore, floating and wrinkling of the paper tape in the rewinding process are effectively restrained. By means of the system, automatic paper stabilizing control over the whole process from the full roll to the empty roll of the raw paper roll can be achieved, the rewinding quality and production efficiency are remarkably improved, and the adaptability, stability and automation level of the rewinding machine are greatly improved.
Owner:HAINAN GOLDEN HONGYE PAPER CO LTD

A heating spoon

This utility model relates to the field of heating spoon technology, and in particular discloses a heating spoon, including a spoon body assembly and a handle assembly used in conjunction with the spoon body assembly. The spoon body assembly includes a spoon head with a blind groove for holding material and a heating element for heating the spoon head. The blind groove for holding material has an inner groove concave surface for contacting the target object to be heated. The handle assembly has a spoon handle with a hollow cavity structure, and a control module electrically connected to the heating element is integrated within the hollow cavity structure. This heating spoon achieves reasonable division of core functions. The spoon body assembly focuses on material holding and heating, while the handle assembly integrates control functions, avoiding component interference and facilitating use. The inner groove concave surface of the blind groove for holding material makes close contact with the target object to be heated, improving the heat transfer efficiency of the heating element. The hollow cavity spoon handle can protect the control module and also reduce heat conduction, preventing burns to the hands, thus combining practicality and safety.
Owner:RUILONG ELECTRIC (SHENZHEN) CO LTD

A wire electroforming-drawing synergic composite forming process

PendingCN122400347Aincrease binding densityReduce surface damageSynercticusMetal filament
This invention relates to the field of metal material processing technology. It discloses a synergistic composite forming process for metal wire electroforming and drawing, comprising the following steps: first, surface cleaning and activation treatment of the base metal wire to remove oxide layers, oil stains, and impurities; then, feeding the pretreated wire into an electroforming device to deposit a metal plating layer, obtaining an initial electroformed composite wire; subsequently, direct online radial high-pressure drawing to achieve a dense bond between the electroformed layer and the base metal; followed by annealing of the composite wire; repeating the electroforming, drawing, and annealing steps at least once to complete multiple synergistic cycles; finally, testing the dimensional accuracy, mechanical properties, and interlayer bonding force of the composite wire, and cutting it into finished products after passing the tests. This invention employs an online tandem synergistic process of electroforming and drawing, avoiding plating oxidation and interface contamination. Radial high-pressure drawing can compact the plating layer, eliminate porosity, and improve bonding density.
Owner:ZHEJIANG TRUMHE NEW MATERIAL CO LTD +2

A low-temperature early-strength, low-viscosity liquid accelerator and its compounding production process

ActiveCN122036224BLower apparent dynamic viscositySolve the clogging problemAcetic acidPhysical chemistry
This invention discloses a low-temperature early-strength, low-viscosity liquid accelerator and its compounding and production process, relating to the field of concrete admixture technology. The accelerator is compounded from a basic skeleton component, a rheological stabilizing component, and a low-temperature early-strength component. The basic skeleton component includes an inorganic aluminum salt accelerator, anhydrous magnesium sulfate, diethanolamine, and water; the rheological stabilizing component includes liquid polyaluminum sulfate, an amphoteric internal salt viscosity reducer, and cationic nano-silica sol; the low-temperature early-strength component includes water-soluble organic aluminum salt, zirconium oxysulfate, lithium acetate, and water. This invention improves the rheological stability of the accelerator under low-temperature conditions through the combination of the amphoteric internal salt viscosity reducer and the cationic nano-silica sol; and improves the early strength development ability of the accelerator under low-temperature conditions through the combination of the water-soluble organic aluminum salt, zirconium oxysulfate, and lithium acetate.
Owner:SHANXI CHENGXINJU BUILDING MATERIALS CO LTD

Foot bath bag for treating paronychia

ActiveCN224345169URealize personalized customizationGood fixationBathing devicesMedical applicators
The utility model relates to the technical field of blood disease patient transplantation, and disclose a foot bath bag of paronychia, including waterproof bag, the inside of waterproof bag is equipped with soft glue frame, the top of waterproof bag is fixedly connected with additional belt, the outer wall of additional belt is sleeved with restraint band, the inside of restraint band is inserted with winding rope, the outer wall of winding rope is connected with adjusting block, the bottom of waterproof bag is connected with fixing frame. The foot bath bag of paronychy, through the cooperation setting of waterproof bag, soft glue frame and additional belt, can effectively contain iodine foot bath liquid, strictly prevent iodine liquid leakage, reduce the cleaning trouble and cross infection risk caused by liquid leakage, can accurately separate and position the patient's toes, whether it is big toe or little toe can be properly settled, ensure that iodine liquid can fully and evenly contact paronychia sick part, maximize the disinfection and treatment effect of iodine, promote the relief and recovery of paronychia symptom.
Owner:THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL

A method and system for intelligent embroidery stitch optimization and energy-saving control

PendingCN122546933AThe collection process is continuous and stableHigh precision
This invention discloses an intelligent embroidery stitch optimization and energy-saving control method and system, belonging to the field of intelligent manufacturing technology. The method includes the following steps: collecting the power level switching signal, drive current change curve, and image acquisition time record of the embroidery machine; generating an electromagnetic interference distribution map based on the collected data; extracting the interference concentration area from the electromagnetic interference distribution map; establishing an interference scale table; and outputting the interference scale results. This invention achieves temporal isolation and synchronous coordination between power switching and image acquisition through interference scale modeling and dynamic matching of the power quiet zone, eliminating the impact of electromagnetic interference on image acquisition and ensuring stable stitch recognition. Through the linkage update of illumination sampling and the interference control list, adaptive control of power, exposure, and illumination is achieved, effectively reducing energy consumption while improving embroidery accuracy.
Owner:HUIZHOU OPTO TECHNOLOGY CO LTD

Inspection robot lifting platform

ActiveCN224391110UImprove stabilityImprove obstacle performanceArmsHydraulic cylinderRobotic arm
This utility model belongs to the field of coal mine inspection technology, specifically an inspection robot lifting platform. It includes a chassis with a liftable lifting platform mounted on top. An electric rotating gimbal is mounted on the upper surface of the lifting platform, which drives the gimbal to move up and down. A robotic arm is mounted on the upper surface of the electric rotating gimbal. This inspection robot lifting platform, with its tracks on the chassis, increases the stability and obstacle-crossing performance of the inspection robot, thus adapting to various complex underground road environments, especially better handling uneven and potholed road sections. The liftable platform on top of the chassis, using a hydraulic pump station to drive hydraulic cylinders, allows for flexible adjustment of the inspection robot's height, adapting to different underground environments, enhancing passability, and providing different viewing angles.
Owner:CHONGQING GUANFENG INTELLIGENT TECHNOLOGY CO LTD

Beating type walnut shelling machine

The utility model discloses a beating type walnut shelling machine, which is used for shelling walnuts and consists of an integral mechanism, a shell breaking device, a material distributing device and a power device. The principle of the shell breaking device is based on a crank-link mechanism, a motor transmits torque to a shell breaking mechanism through a driving shaft, and up-down beating and shell breaking are achieved; meanwhile, the driving shaft drives the driven shaft to rotate through the transmission chain, the driven shaft is connected with the grooved wheel mechanism, the material distribution disc rotates synchronously and intermittently, feeding, beating and material sweeping are completed, and kernels are swept out through the rotating disc and fall into a recycling bin. The problems that the walnut shell breaking process is complex, the processing cost is high, industrial shell breaking extrusion is uneven, small workshops and homes are inconvenient, and the kernel yield is low are solved. The device is of a pure mechanical structure, operation is easy and convenient, repair and maintenance are convenient, and the technology and maintenance cost is reduced; and the mechanism is simple in transmission and high in hull breaking precision, and can bring certain economic benefits.
Owner:XINJIANG UNIVERSITY

A traditional Chinese medicine composition for treating cachexia and its preparation method

PendingCN122075631ANeutralizes warm and dry natureconvenient amount
This invention relates to the field of traditional Chinese medicine (TCM) technology, and discloses a TCM composition for treating cachexia and its preparation method. The composition comprises five grains (a type of insect), Astragalus membranaceus, stir-fried Atractylodes macrocephala, Polygonatum sibiricum, Lycium barbarum, Ophiopogon japonicus, Citrus reticulata peel, Panax notoginseng, and Glycyrrhiza uralensis. Stir-fried Atractylodes macrocephala can be replaced with Poria cocos, Ophiopogon japonicus can be replaced with Polygonatum odoratum, and Citrus reticulata peel can be replaced with Amomum villosum. This formula is based on the principle of "strengthening the body's resistance, detoxifying and removing blood stasis," enhancing the effects of invigorating the spleen and stomach, promoting body fluid production and moistening dryness, while avoiding greasy and cloying substances that may hinder digestion. The preparation method involves cleaning, pulverizing, decocting, extracting, and drying the raw materials to obtain granules. This composition can be used to treat cachexia caused by various tumors such as lung cancer and liver cancer. Animal experiments have verified that it can significantly increase patients' food intake, improve cancer-related fatigue, inhibit tumor growth, alleviate muscle atrophy and splenomegaly, regulate blood routine, and improve anemia and immune function, providing a safe and effective option for the treatment of cachexia.
Owner:JINHUA HERUI LIFE HEALTH TECHNOLOGY CO LTD +1

A method of nonlinear filtering of a pulsed eddy current inspection signal

ActiveCN121899247BImprove stabilityOptimize wall thicknessMaterials scienceNoise (signal processing)
The application provides a kind of nonlinear filtering method of pulse eddy current detection signal, belong to nondestructive testing technical field, can at least partially solve the problem that magnetic field decay voltage signal is greatly influenced by noise in pulse eddy current detection, traditional smoothing filter is easy to introduce signal distortion.The method is used for the pulse eddy current detection signal receiving processing of metal structure with cladding layer, comprising: collecting magnetic field decay voltage signal in pulse eddy current detection process;Nonlinear compression transformation is carried out on the time axis corresponding to the magnetic field decay voltage signal;Smooth filtering time window of preset length is set on the time axis after nonlinear compression, and the corresponding conventional time interval is determined;The magnetic field decay voltage signal falling into the conventional time interval is carried out smoothing filter processing, and the filtered pulse eddy current detection signal is obtained.The application makes the filtering process match the time characteristics of the magnetic field decay signal, improves the stability of signal processing, and is beneficial to subsequent wall thickness or state evaluation.
Owner:GD POWER JIUQUAN GENERATION CO LTD +1

Oil delivery arm structure with residual oil collection function

The utility model discloses a kind of oil delivery arm structures with residual oil collection function, including shell, bottom plate, oil delivery arm body, connecting pipe and hot air machine;Bottom plate is horizontally equipped on the left side of shell upper surface, and bottom plate is connected with shell horizontal rotation by rotating assembly;Oil delivery arm body is horizontally transversely arranged, and it is inclined downward to left lower direction, and is fixedly arranged on bottom plate by mounting seat I;Fixed seat is horizontally equipped on the right side of shell upper surface relative to bottom plate, and mounting seat II is horizontally equipped on the upper surface of fixed seat, mounting seat II makes horizontal transverse motion on fixed seat by pushing assembly, and connecting pipe is horizontally equipped on its upper surface, the right end of connecting pipe is sealed with hot air machine, and connecting assembly is equipped on its left end, and then under the drive of pushing assembly, connecting pipe moves horizontally left, and it is sealed with oil delivery pipe body by connecting assembly, and hot air is blown into oil delivery arm body by hot air machine.
Owner:LIANYUNGANG SHENYU PETROCHEMICAL MASCH EQUIP CO LTD

Cathode inlet temperature and humidity cooperative control method for dual-module intercooler type fuel cell

The invention relates to a dual-module intercooler type fuel cell cathode inlet temperature and humidity cooperative control method. The method comprises the steps that fuel cell cathode air inlet real-time state parameters and operation parameters are obtained, a multivariable coupling prediction model is constructed after preprocessing, and a temperature and humidity reference and an oxygen stoichiometric ratio target reference are set in combination with heat exchange characteristics of a dual-module intercooler; then the core body heat exchange distribution proportion is regulated and controlled, humidification adjustment is matched, and the core body heat exchange distribution proportion and the humidification adjustment intensity are dynamically adjusted according to the real-time working condition; comparing the deviation between the adjusted actual temperature and humidity and the target temperature and humidity reference, and correcting the heat exchange distribution proportion and the humidifying adjustment parameter through a dynamic constraint correction model; cooperative regulation and control of cathode inlet temperature and humidity are realized, dynamic change of working conditions is adapted, and stable operation of the fuel cell is guaranteed.
Owner:SHANGHAI WENJING ENERGY TECH CO LTD

An improved expansive soil and its preparation method and application

ActiveCN116655304BRealize the reuse of wasteImprove toughnessSoil scienceEnvironmental engineering
The application relates to an improved swelling soil and a preparation method and application thereof, the improved swelling soil comprising 0.4-0.8% of sugarcane residue fiber, 4-8% of biochar, 4% of cement, 0-1.25% of a pH value regulator and 85.95-91.60% of swelling soil to be improved. The application reinforces the soil structure by the sugarcane residue fiber, and restrains the deformation; the biochar is mixed to improve the water stability and structural stability of the soil; the cement is mixed to make the soil sandy and granulated, thereby improving the strength, compactness and stability of the soil; and the pH value regulator is mixed to adjust the acid-base environment of the soil, which is beneficial to subsequent ecological restoration. The application significantly improves the physical and mechanical properties of the swelling soil, effectively reduces the swelling and shrinking potential of the swelling soil, and can make the swelling soil reach an acid-base environment suitable for plant growth. Meanwhile, the solid waste is recycled, waste is turned into treasure, the preparation process is simple and feasible, and the application has good engineering application value.
Owner:GUANGXI UNIV

Breathing machine

The breathing machine comprises a main machine and a humidifying tank, the main machine is provided with an inserting base, the humidifying tank is provided with an inserting section, the inserting section can be in inserting fit with the inserting base in the first direction and can be separated from the inserting base in the second direction opposite to the first direction, and the inserting section is provided with an air outlet adapter pipe; the bayonet socket is provided with a receding groove extending in the first direction, so that when the humidifying tank is matched with the main machine in an inserted mode, the air outlet adapter pipe can enter the receding groove in the first direction. In the process of assembling and disassembling the humidifying tank, the protruding air outlet adapter tube does not need to be disassembled, and the humidifying tank inserted with the air outlet adapter tube can be integrally inserted into the bayonet socket, so that the assembling and disassembling steps of the humidifying tank are simplified, and the disassembling step of the air outlet adapter tube in the process of assembling and disassembling the humidifying tank is omitted. In addition, the risk that internal water leaks from the air outlet due to shaking of the humidifying tank is avoided, the cleaning burden of a user is reduced, and the use experience is improved.
Owner:JIANGSU YUYUE MEDICAL EQUIP&SUPPLY CO LTD +2

Energy-saving control method and device for industrial low-temperature air conditioner

The application relates to the technical field of heat exchange device control, in particular to an energy-saving control method and device for an industrial low-temperature air conditioner, which comprises the following steps: analyzing the correlation between an equivalent refrigeration load and the temperature on the air outlet side of an evaporator, combining the difference between the instantaneous temperature and the average temperature of the application area of the low-temperature air conditioner, constructing a first self-adaptive compensation factor, and correcting the proportional gain of a PID controller; analyzing the difference between the equivalent refrigeration loads at all adjacent moments to construct a second self-adaptive compensation factor and correct the integral gain of the PID controller; and generating a control instruction of the low-temperature air conditioner based on the corrected proportional gain and integral gain to dynamically regulate and control the temperature of the low-temperature air conditioner. The application dynamically corrects the PID parameters based on the load and temperature response characteristics, solves the problems of frosting, overshooting and high energy consumption caused by traditional control, and improves the energy-saving control effect and operation stability of the industrial low-temperature air conditioner.
Owner:MANNIWIS (BEIJING) ELECTRICAL TECHNOLOGY CO LTD

Sea cucumber soaking combined pot

ActiveCN224112472UGuaranteed textureGuaranteed NutrientsCooking-vessel lids/coversWarming devicesRice dishesMechanical engineering
The utility model discloses a sea cucumber soaking combined pot which is provided with an outer container and an inner container which can be separated, and the outer container comprises an outer heating bottom, an outer heating wall and an outer port; the inner container comprises an inner heat transfer bottom, an inner heat transfer wall and an inner port; the inner container is arranged in a containing space which is defined by the outer heating bottom and the outer heating wall and used for dry pot cooking through the outer end opening, and the containing space is defined by the outer heating bottom and the outer heating wall. By means of the innovative design of the sea cucumber soaking combined pot, more efficient, safer and more convenient sea cucumber soaking experience is achieved, meanwhile, better rice taste and multifunctional use possibility are additionally provided, cost is lower, and remarkable market advantages are achieved.
Owner:WEIHAI SHENAN ELECTRONIC TECH CO LTD

A continuous extrusion and electroplating integrated preparation method for aluminum bars

PendingCN122503919Aavoid surface defectsavoid accumulation
The present application relates to the technical field of aluminum strip electroplating, and particularly relates to a continuous extrusion and electroplating integrated preparation method for aluminum strip. The present application is characterized by the following aspects: a full-process continuous process design is adopted, including continuous extrusion, continuous electroplating pretreatment, continuous electroplating of composite coating, and continuous post-plating treatment; a differentiated process connection scheme is set for 1 series and 6 series aluminum alloy substrates; a nickel functional layer deposition thickness quantitative regulation and control model is adopted, in which a turbulence correction coefficient is introduced; and a copper-nickel composite coating structure, segmented current density control, plating solution temperature matching concentration matching regulation and control technology are adopted. The present application realizes integrated continuous production of aluminum strip forming and surface modification, greatly improves the adhesion, thickness uniformity and corrosion resistance of the coating, and balances the production efficiency and product performance, and can be widely applied to the preparation of conductive aluminum strips in high-end fields such as new energy vehicles.
Owner:SHANGHAI AINUO METAL MATERIALS CO LTD

A frequency-wavenumber domain imaging method suitable for high temperature pipeline defect detection

ActiveCN122409856BReduce computational complexityImproving Imaging Efficiency
The present application relates to the technical field of pipeline defect detection, in particular to a frequency-wavenumber domain imaging method suitable for high-temperature pipeline defect detection, which mainly solves the technical problem that the existing FK domain imaging method is difficult to be applied to high-temperature pipeline defect detection imaging. The frequency-wavenumber domain imaging method suitable for high-temperature pipeline defect detection comprises the following steps: signal acquisition; data preprocessing and gated direct wave signal interception; construction of time scale scaling factor; acquisition of frequency-dependent amplitude compensation factor; phase velocity extraction; gated defect echo signal interception, frequency domain transformation, frequency-dependent amplitude compensation and wavenumber domain transformation; Stolt mapping reconstruction; two-dimensional inverse Fourier transformation; normalization and image display. The imaging method effectively improves the imaging efficiency and significantly improves the imaging position error and focusing state.
Owner:ZHONGBEI UNIV

Fan capable of preventing impeller from loosening

The invention provides a fan capable of preventing an impeller from loosening, and relates to the field of fans, the fan comprises a main shaft, the impeller mounted on the main shaft, a shell for accommodating the impeller, a driving device, an anti-loosening mechanism and a transmission isolation mechanism; the anti-loosening mechanism comprises a centrifugal triggering assembly and an axial locking assembly. The centrifugal triggering assembly comprises a mounting base and a centrifugal sliding block, the mounting base is arranged on the impeller, and the centrifugal sliding block is arranged on the mounting base; the axial locking assembly comprises a force bearing seat and a centrifugal pressing block, the force bearing seat is arranged on the main shaft and located on the axial side of the impeller, and the centrifugal pressing block is movably arranged on the force bearing seat. The transmission isolation mechanism comprises a flexible coupler and a supporting bearing set, the flexible coupler is arranged between the driving device and the main shaft, and the supporting bearing set is arranged between the machine shell and the main shaft. The impeller is actively and dynamically prevented from loosening, and through systematic design, the operation stability, the safety reliability and the maintenance convenience of the fan under complex working conditions are remarkably improved.
Owner:JIANGYIN LONGYIXIN MACHINERY CO LTD

A hard candy cooling machine optimization method based on roller frequency conversion speed control

PendingCN122634085Aevenly heatedstable coolingAir volumeFrequency conversion
The present application relates to a kind of hard candy cooling machine optimization method based on roller frequency conversion speed control. Among them, the method includes: obtaining multidimensional cooling condition data, by cooling stage division and unique identification, obtain segmented cooling condition data;The corresponding data is input into the speed-cooling effect mapping model, and the mapping relationship of the roller speed hard candy cooling rate is obtained;The speed regulation interval of the corresponding stage is divided, and the linkage cam swing conveying collaborative mechanism is used to dynamically match the swing amplitude;By optimizing the corresponding model, the roller frequency conversion speed control strategy is obtained;The characteristic state of current hard candy is identified, and the control instruction of corresponding stage is output;The feedback data of roller speed is compared with control instruction threshold, and the cooling air volume is dynamically adjusted, and the cooling process data is output;Fine-tune swing amplitude and frequency, and obtain cooling execution result;Through deviation analysis, the hard candy cooling machine optimization method of self-iterative frequency conversion control is realized.
Owner:SHANGHAI FUDE MACHINERY MANUFACTURING CO LTD

Vertical channel field effect transistor and method of manufacturing the same

The present application relates to a kind of vertical channel field effect transistor and its preparation method, belong to semiconductor device technical field.It includes: silicon oxide substrate, its one side is provided with high platform;Wherein, high platform each side is provided with multilayer film structure;First guide groove on the first side of multilayer film structure and first guide groove on the second side of adjacent multilayer film structure are communicated;First guide groove is perpendicular to silicon oxide substrate;Multiple first dielectric layer, is set to the surface of silicon oxide substrate;Wherein, first dielectric layer both sides are provided with second guide groove;Second guide groove is communicated with the nearest first guide groove;First guide groove and second guide groove are provided with nanowire;Source electrode, is set to the side of high platform away from silicon oxide substrate;Multiple gate electrode, each gate electrode is set to the third side of each multilayer film structure, and is connected with dielectric layer.The present application realizes single nanowire high-density multi-independent channel, improves structure utilization.
Owner:SUZHOU CITY UNIV

An asphalt mixture cooling device

The utility model relates to bitumen laying technical field discloses a kind of asphalt mixture cooling device, including shell, shell side is connected with mounting rack, the mounting rack side is connected with driving motor, driving motor output end extends to shell inside, and is connected with rotating shaft is arranged.The utility model can uniformly stir asphalt mixture by stirring mechanism, so that it uniformly cools down, simultaneously by the connection of heat dissipation frame and heat exchange pipe, cooling effect can be effectively improved, and cooling speed is not too fast, and agglomeration is generated, and electric heating tube can heat and keep warm effect to asphalt, so that asphalt is handled optimum use state, when discharging, asphalt mixture can be pushed to outside by cleaning mechanism sticking to the inner wall of shell, that is, it guarantees the discharging effect, guarantees the cleaning effect of inner wall of shell, reduces the work of operator, effectively improves use efficiency.
Owner:PUJIANG ASPHALT MIXING CO LTD

Liquid crystal cream with high penetration ability, preparation method and application

ActiveCN117562822BExcellent liquid crystal structurePromote transdermal absorptionCosmetic preparationsToilet preparationsBULK ACTIVE INGREDIENTFatty alcohol
This invention discloses a liquid crystal cream with high penetration capability, its preparation method, and its application. The liquid crystal cream comprises: an oleophilic emulsifier, a hydrophilic emulsifier, long-chain fatty alcohols and esters, and the remainder being humectants, thickeners, chelating agents, emollients, preservatives, active ingredients, and deionized water. This invention's small liquid crystal moisturizing cream has an excellent skin feel, good absorption, is breathable and non-comedogenic, and can form a biomimetic moisturizing film with good skin affinity on the skin, enhancing skin hydration and moisturizing ability, effectively improving skin condition, and achieving the effect of protecting and repairing the skin barrier. The system exhibits good long-term stability and a complete liquid crystal structure. Furthermore, tests show that this small liquid crystal cream has a significant penetration effect on both oil-soluble and water-soluble active ingredients. It is expected to achieve better skincare effects by incorporating different active ingredients in the field of functional skincare cosmetics.
Owner:PROYA COSMETICS CO LTD

A new hybrid system

This invention discloses a novel hybrid power system, belonging to the field of engine technology, applicable to horizontally opposed engines. By optimizing the shapes of the cylinder head, intake manifold, and piston, airflow is guided to form a concentrated and powerful tumble flow. During the compression stroke, this creates a squeezing impact tumble flow, breaking it up before ignition and combustion, thus improving combustion efficiency. The crankcase has a skeleton structure, simplifying the manufacturing process and eliminating the need for mold casting. All components can be machined. The lubricating oil passages within the crankcase are formed by splicing oil passages from various components; short sections of the oil passages are easy to machine, and blockages are easily disassembled and cleared. A rocker arm simultaneously drives two intake valves, with equal distances from both valves to the rocker arm, allowing for simultaneous entry and exit of both valves. This provides good coordination, reduces wear and noise, and ensures good sealing.
Owner:HUNAN MINHANG AUTOMOBILE TECH CO LTD