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42results about How to "Achieve elimination" patented technology

Echo cancellation and noise reduction method and device

ActiveCN119091900AImprove voice interactionachieve eliminationSpeech analysisTerminal equipmentEngineering
The embodiment of the invention discloses an echo cancellation and noise reduction method and device. In the embodiment of the invention, a first near-end voice and a first far-end voice are obtained, a fourth near-end voice and a fourth far-end voice are generated through preprocessing, delay detection and short-time Fourier transform, then linear echo cancellation is carried out, and an error signal of linear echo cancellation and a linear echo signal are generated; inputting the fourth near-end voice, the fourth far-end voice, the linear echo cancelled error signal and the linear echo signal into a to-be-trained two-stage neural network multi-task fusion model, and determining a joint loss function; and generating a two-stage neural network multi-task fusion model according to the joint loss function, and then performing model compression to generate a target two-stage neural network multi-task fusion model for realizing echo cancellation and noise reduction. Through the above method, under the condition of an extremely low signal-to-return ratio, acoustic echo cancellation and noise reduction are realized, and the voice interaction and communication performance of the terminal device is improved.
Owner:ZHEJIANG FUTURE ELF ARTIFICIAL INTELLIGENCE TECH CO LTD

River sewage and sludge separation treatment device

The invention provides a river sewage and sludge separation treatment device, and belongs to the technical field of sewage separation, the river sewage and sludge separation treatment device comprises a reservoir, a drainage pool and a purification pool, the purification pool is internally provided with a filter assembly, the filter assembly comprises a filter cartridge, the river sewage and sludge separation treatment device further comprises a sewage discharge assembly, and the sewage discharge assembly discharges sludge on the inner wall of the filter cartridge through flushing of water flow; the storage assembly is used for cleaning a biological membrane on the inner wall of the filter cartridge by utilizing stored bleaching powder and cooperating with flushing liquid; the cleaning assembly is used for cleaning the filter cartridge by spraying water; the beating assembly is used for cleaning sludge on the inner wall of the filter cartridge by utilizing vibration generated by beating; and the floating assembly controls discharge of bleaching powder according to the height of the water level. The device has the beneficial effects that the filter cartridge rotates to drive the slapping plate to strike the filter cartridge, and meanwhile, the filter cartridge is flushed by water flow, so that sludge adhesion is effectively reduced, the cleaning effect is improved, in addition, microorganisms can be automatically eliminated, and the water quality is guaranteed.
Owner:JIANGSU JUNDIFENG ENVIRONMENTAL PROTECTION TECH CO LTD

Transformer comprehensive test board and test method thereof

The invention provides a transformer comprehensive test board and a test method thereof, and belongs to the technical field of transformer tests.The transformer comprehensive test board comprises an operation table and a control part and further comprises a switching mechanism, a power elimination mechanism and a wire disengaging mechanism. The control part can control the corresponding electromagnets to be powered on, push the corresponding first magnet pieces to move in the direction away from the electromagnets and drive the corresponding second conductive pieces to move in the direction away from the conductive joints, and in the process, the third conductive pieces can be inserted into the corresponding second conductive grooves. The second conductive part can be connected with the ground through the third conductive part, the fourth conductive part, the coil and the first conductive part, so that the two adapters of the output end and the input end of the power-off circuit can be connected with the ground, the residual current can enter the ground, the residual current is eliminated, the internal residual current of the transformer is prevented from influencing the subsequent test, and the safety is improved.
Owner:JIANGSHAN YUANGUANG ILLUMINATING CO LTD

Injection molding equipment with waste gas pretreatment and purification mechanism

The invention relates to the technical field of waste gas treatment, in particular to injection molding equipment with a waste gas pretreatment and purification mechanism. The injection molding equipment comprises an injection molding equipment body, a pretreatment tank is arranged on one side of the injection molding equipment body, a dust removal and purification assembly is arranged in the pretreatment tank, and a liquid storage tank is fixedly connected to the bottom of the pretreatment tank; a stirring assembly is arranged in the liquid storage tank; in the injection molding waste gas extraction process, by means of rotation of the rotating rod, the multiple dust removal filter plates are driven to be alternately and circularly used, it is ensured that large-particle impurities are continuously and efficiently blocked in turn in the filtering process, and the replacement frequency of cooling water is prevented from being increased; the stirring assembly can be promoted to be matched with the stirring blades on the rotating rod, generation of large bubbles is eliminated, dissolution of small-particle impurities is promoted, the retention time of waste gas in cooling water is prolonged, then the small-particle impurity removal effect is improved, and in addition, during purification and discharging, impurities on the dust removal filter plate can be synchronously subjected to back flushing cleaning and collection.
Owner:苏州至高塑胶模具有限公司

Method for eliminating delta ferrite in austenitic stainless steel and austenitic stainless steel

ActiveCN119614802AAvoid oxidation burnwon't grow upProcess efficiency improvementAustenite grainMetallic materials
The invention provides a method for eliminating delta ferrite in austenitic stainless steel and the austenitic stainless steel, and belongs to the technical field of metal materials. The method comprises the following steps that an austenitic stainless steel ingot containing the delta ferrite is subjected to heat preservation for first set time at the first set temperature for first heat treatment; heating the austenitic stainless steel ingot subjected to the first heat treatment to a second set temperature, and carrying out heat preservation for a second set time at the second set temperature for second heat treatment; and cooling the austenitic stainless steel ingot subjected to the second heat treatment, or sequentially and repeatedly carrying out the first heat treatment and the second heat treatment on the austenitic stainless steel ingot subjected to the second heat treatment for at least one time, and then cooling to obtain the austenitic stainless steel subjected to delta ferrite elimination. The first heat treatment and the second heat treatment are performed, and the second set time is limited, so that the austenitic stainless steel is prevented from being in a high-temperature environment for a long time, and austenite grains are prevented from obviously growing.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

High-power optical fiber device refractive index dual-wavelength polarization holographic microscopic three-dimensional detection system based on metasurface cylindrical lens and working method

The invention relates to a high-power optical fiber device refractive index dual-wavelength polarization holographic microscopic three-dimensional detection system based on a metasurface cylindrical lens and a working method, and belongs to the field of optical measurement. Comprising a first laser, a second laser, a first reflecting mirror, a first non-polarized beam splitting prism, a first half-wave plate, a beam expander, a polarized beam splitting prism, a second reflecting mirror, a first metasurface cylindrical lens pair, a Wollaston prism, a second half-wave plate, a third reflecting mirror, a second metasurface cylindrical lens pair, a sample optical fiber, a second non-polarized beam splitting prism and a first optical filter. The device comprises a first optical filter, a first CCD detector, a second optical filter, a second CCD detector and a computer. A metasurface cylindrical lens, a dual-wavelength polarization phase fusion interference detection method and a full-aperture aberration elimination filtering back projection refractive index three-dimensional reconstruction method are adopted, and the three-dimensional distribution detection precision and efficiency of the refractive index and welding defects of the high-power optical fiber device are further improved.
Owner:SHANDONG UNIV

Neutral-point voltage full-range control system and method during T-type three-level inverter fault

The invention relates to the technical field of inverter control, in particular to a neutral-point voltage full-range control system and method when a T-type three-level inverter breaks down, the T-type three-level inverter is important equipment in an energy router, and when a switch tube of the T-type three-level inverter breaks down, the problems of neutral-point voltage imbalance, current distortion and the like can be caused. According to the invention, the control capability of the neutral-point voltage is greatly improved by decomposing modulation waves when a switch tube fails, neutral-point voltage deviation elimination and oscillation suppression in a full modulation degree and full power factor range are realized, and fault-tolerant operation and neutral-point voltage balance control when the T-type three-level inverter fails are realized on the whole; safe and stable operation of the energy router system is realized, and safe operation of large and important electric power systems such as an electric power system, aerospace, metallurgical mining industry, rail transit and the like is guaranteed.
Owner:SHANGHAI NINGZHU NEW ENERGY TECHNOLOGY CO LTD +2

Channel state information measurement method and related equipment

Disclosed are a channel state information measurement method and related equipment, the method comprising: receiving reference signal resource configuration information sent by a base station, the reference signal resource configuration information comprising channel measurement configuration information and N-1 pieces of interference measurement configuration information; the channel measurement configuration information is configuration information of resources used for measuring the channel state of the first user terminal, the interference measurement configuration information is configuration information of resources used for measuring interference brought by the second user terminal, and the first user terminal and the second user terminal are paired terminals; and performing measurement according to the reference signal resource configuration information and reporting channel state information to the base station based on measurement information, so that the base station performs precoding based on the reported channel state information. According to the method provided by the invention, enough user terminal channel state information can be provided for the base station, so that the base station can better realize interference suppression or elimination, and the overall performance of the MU-MIMO system is improved.
Owner:CHENGDU ARRAYCOMM WIRELESS TECH CO LTD

Scenic spot image processing method and device, equipment and storage medium

ActiveCN119887548Bachieve eliminationachieve fixImaging processingNuclear medicine
The present application relates to the technical field of image processing, and particularly relates to a scenic spot image processing method and device, equipment and a storage medium, the method comprising obtaining a to-be-processed scenic spot image, determining a target region in the to-be-processed scenic spot image, removing the target region in the to-be-processed scenic spot image to obtain a removed image; obtaining image attribute information of the to-be-processed scenic spot image, obtaining a similar image corresponding to the removed image according to the image attribute information; determining a target region in the similar image, completing the removed image according to the target region in the similar image to obtain a completed image; inputting the completed image and the image attribute information into a preset image inpainting neural network model to perform image inpainting on the completed image, and obtaining an inpainted image of the to-be-processed scenic spot image, which realizes the elimination of sundries and inpainting of the to-be-processed scenic spot image, and meets the image processing requirements of users.
Owner:SHENZHEN CHINO E COMM CO LTD

A δ-MnO2-GO catalyst, its preparation method, and its application in formaldehyde degradation at room temperature.

The application discloses a kind of delta-MnO2-GO catalyst and its preparation method and application in room temperature formaldehyde degradation, it is related to inorganic catalyst technical field.The preparation method of delta-MnO2-GO catalyst of the application can significantly limit the growth of manganese dioxide nanosheet by doping with low amount of GO, to manufacture abundant mass transfer transmission channel, delta-MnO2-GO catalyst presents unique two-dimensional crown structure, two-dimensional coral-like hierarchical pore structure delta-MnO2 nanorod is uniformly dispersed on the GO of plane structure, greatly promote the exposure of catalytic site and the mass transfer of reactant, produce a large number of surface active oxygen ROS and hydroxyl radical-OH, greatly maintain the excellent catalytic activity and stability to HCHO degradation, stably realize nearly 100% HCHO elimination at room temperature.
Owner:SUN YAT SEN UNIV

Surface acoustic wave device

ActiveCN224191916Uimprove performanceNo need to occupy effective areaImpedence networksMiniaturizationSurface acoustic wave
The utility model provides a surface acoustic wave device. The surface acoustic wave device comprises a piezoelectric composite substrate and a metal structure located on the piezoelectric composite substrate. The piezoelectric composite substrate comprises a silicon substrate; the crystal elastic constant of the silicon substrate is a six-order matrix Cij, 0lt; i < = 6, 0lt; j < = 6, and i and j are integers; the silicon substrate has an Euler angle, and the absolute value of C15 in an elastic constant Cij defined by the Euler angle is greater than or equal to 2 * 10 < 9 > Pa. Namely, the Euler angle is set, and the absolute value of the elastic constant C15 of the silicon substrate is defined to be greater than or equal to 2 * 10 < 9 > Pa, so that the parasitic response generated by a high-order stray mode at high frequency is effectively eliminated or reduced, and the suppression capability of a stop band is improved. Compared with the prior art, the surface acoustic wave device provided by the utility model not only has a better inhibition effect on a high-frequency parasitic mode and improves the performance of the device, but also does not occupy the effective area of the device, is beneficial to the miniaturization development of the device, and is simple in process preparation.
Owner:SHANGHAI VANCHIP ELECTRONICS TECH CO LTD

AC real-time parameter rapid correction method

The invention discloses an alternating current real-time parameter rapid correction method, which relates to the technical field of alternating current parameter correction, and comprises the following steps of: 1, establishing an alternating current real-time parameter coordinate system; 2, selecting a plurality of standard calibration points in the coordinate system; 3, selecting a plurality of to-be-corrected points in the coordinate system, and calculating a broken line slope K corresponding to each to-be-corrected point; and 4, directly updating the to-be-corrected point through the broken line slope K to obtain corrected data. According to the invention, a curing operation can be carried out before real-time measurement is started, and a large amount of resources occupied by division operation of a single-chip microcomputer are avoided, so that the operation speed is improved, and the accuracy of a measurement result is ensured. The method is suitable for measurement of real-time electrical parameters of alternating current and other basic measurement fields, and has a wide application prospect.
Owner:BENGBU POWER SUPPLY COMPANY STATE GRID ANHUI ELECTRIC POWER +1

A defoamer delivery system

ActiveCN224381273Ureduce wasteachieve eliminationPipeline systemsFoam dispersion/prevention
The application provides a defoaming agent conveying system and relates to the field of strip cleaning. In the technical scheme, when it is detected that the thickness value of the foam in the liquid storage barrel is high, the first infusion device is triggered to be turned on, and the first infusion device conveys the defoaming agent stored in the liquid storage tank to the liquid storage barrel, so that the defoaming agent injected into the liquid storage barrel is consistent with the thickness value of the foam, and the defoaming agent waste is reduced on the basis of eliminating the foam in the liquid storage barrel.
Owner:SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD

A transformer comprehensive test bench and test method thereof

The invention provides a transformer comprehensive test bench and a test method thereof, belonging to the technical field of transformer testing. The transformer comprehensive test bench comprises an operating table and a control unit, and also comprises a switching mechanism, a de-energizing mechanism and a disconnecting mechanism. The invention provides the de-energizing mechanism, and when the transformer stops power supply testing, the control unit can control the corresponding electromagnet to be energized, and can push the corresponding first magnet member to move in a direction away from the electromagnet, and drive the corresponding second conductive member to move in a direction away from the conductive joint. During this process, the third conductive member will be inserted into the corresponding second conductive slot, and the second conductive member can be connected to the ground through the third conductive member, the fourth conductive member, the coil and the first conductive member, so that two switching joints at the output end and the input end of the power-off circuit can be connected to the ground, and the residual current can enter the earth, so as to eliminate the residual current, avoid the internal residual current of the transformer from affecting subsequent tests, and improve safety.
Owner:JIANGSHAN YUANGUANG ILLUMINATING CO LTD

Adjusting method and system for quickly solving problem of color difference between color and shade of tile file

An adjusting method for rapidly solving the problem of color difference between color and shade of a ceramic tile file comprises the following steps that S1, the ceramic tile file is deepened till the color difference in the ceramic tile file is larger than a color difference threshold value, and a first processing file is obtained; s2, constructing a first copy file of the first processing file, and performing gray processing on the first copy file to obtain a second processing file; s3, copying the tile file to obtain a second copied file and a third copied file; according to the method, the gray levels of the obtained ceramic tile files are averaged to obtain a completely uniform gray level, and then the texture is fused in the completely uniform gray level instead of checking and adjusting the conditions of yin and yang colors and chromatic aberration by naked eyes traditionally, so that a pattern with uniform colors is formed. And the yin-yang color is eliminated.
Owner:FENGCHENG DONGPENG CERAMICS +3

Operator elimination method, system, electronic device and storage medium for neural network

The present invention provides an operator elimination method, system, electronic device and storage medium for a neural network, and relates to the technical field of deep learning. It includes: determining a target subgraph structure with operator elimination requirements in a neural network model; determining an operator in an eliminateable state in the target subgraph structure as a target elimination operator; traversing all subgraph structures until all target subgraph structures with operator elimination requirements and corresponding target elimination operators are determined; calculating the buffer memory sum of the input and output of the target elimination operator; determining the target cache area of ​​the target elimination operator according to the buffer memory sum, so as to allocate the target elimination operator to the target cache area, and configuring the output of all target elimination operators with the same cache address; determining the jump offset of the target elimination operator; compiling the target elimination operator based on the jump offset to complete operator elimination. The present invention can realize operator elimination and reduce the reasoning time of the neural network.
Owner:SHENZHEN CORERAIN TECH CO LTD

Temperature measuring device for environmental-friendly adhesive sample

This utility model discloses a temperature measuring device for environmentally friendly adhesive samples, including a device platform. A device frame is fixed above the device platform, and a second cylinder is installed on the top of the device frame. A temperature measuring module is arranged below the second cylinder. The temperature measuring module includes a temperature measuring module and a temperature measuring probe. The temperature measuring module is fixed to the output end of the temperature measuring module, and the temperature measuring probes are evenly spaced at the bottom end of the temperature measuring module. A motor is installed at one end inside the device platform, and a lead screw is installed at the output end of the motor. A slider is fitted around the lead screw, and the top of the slider extends to the top of the device platform and is fixed to a support platform. A sample box is arranged on the top of the support platform. This utility model not only has a built-in defoaming function, but also has a high degree of integration between the defoaming process and the temperature measuring process, eliminating manual handling and achieving complete elimination of bubbles. It also facilitates quick cleaning of the temperature measuring probe.
Owner:YAZHOULONG (FUJIAN) CHEMICAL CO LTD

Recycled paper pulp beating pool with impurity eliminating mechanism

The utility model discloses a regenerated paper pulp beating pool provided with an impurity eliminating mechanism, which comprises a paper pulp pool, an impurity eliminating mechanism, a paper pulp beating mechanism and an impurity eliminating mechanism, and is characterized in that the paper pulp pool is of a rectangular pool-shaped structure and contains regenerated paper pulp solution; the beating cylinder is located above the paper pulp pool, and the beating cylinder is used for beating recycled paper raw materials. According to the recycled paper pulp beating pool with the impurity eliminating mechanism, a sealing auxiliary ring and a sealing bottom plate are pulled through a hydraulic column, a sealing environment is provided for the interior of the beating cylinder, and waste paper raw materials entering the beating cylinder can be beaten conveniently; a sealing bottom plate arranged at the bottom end in the pulping cylinder is matched with a driving motor to drive a smashing blade and a spiral stirring blade to fully stir and fuse raw materials and clear water in the pulping cylinder, so that the raw materials become pasty regenerated paper pulp, and the raw materials are stirred and mixed again along with the smashing blade and the spiral stirring blade along with secondary injection of the clear water; the impurities flow into the paper pulp pool along with opening of the sealing bottom plate and are flushed by clear water to float on the surface layer of regenerated paper pulp.
Owner:SHANXI ZHONGBAO PAPER CO LTD

Spray head for 3D printer

The invention discloses a spray head for a 3D printer, and relates to the technical field of 3D printer accessories, the spray head comprises a base, a lifting piece is axially arranged on the inner side of the base, sliding pieces are arranged at the two ends of the outer side of the base in a radial opposite and sliding mode, inclined guide block structures are arranged between the sliding pieces and the lifting piece, and the inclined guide block structures on the two sliding pieces are arranged in a staggered mode; two feeding pipes for conveying different materials are arranged in the base, the tail ends of the feeding pipes extend in the axial direction to be provided with outer arc-shaped covers, the sliding parts comprise inner arc-shaped columns acting on the inner sides of the outer arc-shaped covers in the radial direction, the outer arc-shaped covers and the inner arc-shaped columns are connected to the heater, and the middles of the inner arc-shaped columns are arranged to be in an inward concave shape. When the materials are switched, the plasticized materials at the action section of the heater are isolated and preserved by utilizing the concave cavity, so that the mixing rate during material switching is reduced, and meanwhile, the material switching loss is also reduced; control of different postures of the sliding pieces on the two sides can be achieved through the single lifting piece and the spring set.
Owner:QINGDAO YINGLONG UNITED INTELLIGENT MFG EQUIP

Vehicle side window demisting and defrosting system, control method thereof and vehicle

PendingCN121947401Aachieve eliminationVehicle cleaningStructural engineeringAir door
The invention provides a vehicle side window demisting and defrosting system, a control method of the vehicle side window demisting and defrosting system and a vehicle. The internal circulation hot air assembly internally generates airflow with the temperature higher than the set temperature; a hot air inlet of the circulating air door assembly is connected with an air outlet of the internal circulating hot air assembly; the natural air inlet is suitable for introducing external circulation natural air; the switching air door is controlled by the control module to adjust the air inflow of the hot air inlet and the natural air inlet so as to form standby air. The side window air duct assembly comprises a left side air duct assembly connected with the left side air outlet and a right side air duct assembly connected with the right side air outlet; the left air duct assembly extends to a frame of a left car window, and an air outlet of the left air duct assembly blows out standby air towards the outer wall of the left car window. The right air duct assembly extends to a frame of the right car window, and an air outlet of the right air duct assembly blows out standby air towards the outer wall of the right car window. In the scheme, the left and right side air duct assemblies directly blow air to the outer wall of the glass on the outer side of the vehicle window, so that fog and frost on the outer wall of the side window glass of the vehicle are eliminated.
Owner:ANHUI ZHIJIE NEW ENERGY VEHICLE CO LTD +1

Lithium battery shaping and flattening processing mechanism

The utility model relates to the technical field of lithium battery production equipment, and particularly discloses a lithium battery shaping and flattening treatment mechanism which is characterized by comprising a supporting assembly, a rolling assembly and an adjusting assembly, the supporting assembly is arranged below the step position of a lithium battery and used for supporting the step position of the lithium battery, and the rolling assembly is arranged below the step position of the lithium battery; the rolling assembly is arranged on one side of the step position of a lithium battery and used for bulldozing and rolling protrusions formed by edge sealing leftover materials, and the adjusting assembly is arranged on one side of the rolling assembly and used for driving the rolling assembly to vertically move up and down. The lithium battery coating device has the advantages that subsequent coating operation in the lithium battery production process is facilitated, and the coating effect is improved.
Owner:DONGGUAN GUANDA AUTOMATION EQUIP CO LTD

Anti-cracking valve casting and machining method thereof

The invention discloses an anti-cracking valve casting and a machining method thereof. The anti-cracking valve casting is manufactured through a mold; smelting the materials; pouring and cooling the material; grinding and polishing; spraying a coating; according to the method, production and preparation of the valve casting are achieved through the steps such as preparation of the valve casting and packaging of the valve casting, in this way, rapid pouring and preparation of the whole valve casting can be achieved, and in the coating spraying step, through mixed spraying of PTFE paint and epoxy resin, the valve casting has the high anti-cracking characteristic, the overall service life is prolonged, and the service life of the valve casting is prolonged. Pouring equipment is arranged in the material pouring and cooling step, that is, flexible lifting pouring adjustment can be achieved through transmission of a screw rod and a movable base, and cooperation of pouring conversion and efficient cooling is achieved through cooperation with a multifunctional cooling device; and large-range spraying cooling and bubble auxiliary vibration elimination are achieved for the poured mold, and it is guaranteed that the valve casting is efficiently cooled and formed, and the forming quality is improved.
Owner:JIANGSU RONGYUAN CASTING CO LTD

Reverse osmosis membrane production device

ActiveCN222586132UAchieve drying effectSmooth recyclingReverse osmosisAir blower
The utility model belongs to the field of reverse osmosis membrane production, and particularly relates to a reverse osmosis membrane production device which comprises a membrane coating box body, a drying and recycling device is mounted at the end part of the square inclined pipe; an air blower is mounted at the bottom of the air outlet pipe; a heater is mounted outside the section of the air outlet pipe in a sleeving manner; an induced draft fan is mounted outside the section of the vertical rod of the connecting pipe in a sleeving manner; a condenser is mounted outside the section of the inclined rod of the connecting pipe; a sterilization device is mounted on one side of the drying box; a sterilization cavity is formed in the sterilization box; a sterilization structure is mounted at the top of the sterilization box; an exhaust fan is mounted outside the cross section of the transverse pipe of the air suction pipe in a sleeving manner; a reaction tank is mounted outside the vertical pipe section of the air suction pipe in a sleeving manner; through the combined action of the drying and recycling device and the sterilization device, the reverse osmosis membrane is dried, the coating is recycled, the reverse osmosis membrane is sterilized, and emission of harmful gas is reduced.
Owner:CHONGQING HAITONG ENVIRONMENTAL PROTECTION TECH CO LTD

A compound defoaming device for a reaction kettle

The utility model discloses a kind of composite defoaming devices of reaction kettle, including the circulation pump cooperation with reaction kettle, spray pipe, folding leaf demulsifier and agitator, spray pipe, folding leaf demulsifier and agitator are located in reaction kettle, circulation pump is communicated with spray pipe and the discharge pipe of reaction kettle respectively by pipeline;Agitator is concentric double-shaft agitator, to the outer shaft of concentric double-shaft agitator is equipped with coupling sleeve, and upper layer stirring paddle is equipped on coupling sleeve, to the inner shaft of concentric double-shaft agitator is equipped with lower layer stirring paddle.The utility model is combined by coaxial bidirectional stirring, folding leaf demulsifier and reaction kettle internal circulation spray mode, reach the purpose of eliminating foam in reaction kettle, simultaneously, it is helpful to the dispersion and mixing of material in reaction kettle, improve material reaction efficiency.
Owner:SICHUAN KERUI ENVIRONMENTAL PROTECTION TECH CO LTD

TM11 mode filtering device suitable for circular waveguide

ActiveCN119651099AImprove energy coupling efficiencyHEPAWaveguide type devicesMicrowaveMechanical engineering
The invention discloses a TM11 mode filtering device suitable for a circular waveguide, and relates to the technical field of microwave waveguides. The device consists of four mode filtering units, wherein the two mode filtering units are arranged in the same direction to form a group of mode extracting and filtering structures; the two mode extraction filtering structures are arranged on the circular waveguide transmission system in an orthogonal cascade mode; and the mode filtering unit comprises a circular waveguide, a choke ring coupling structure coaxially arranged with the circular waveguide, two rectangular waveguide elbow structures, a four-section rectangular straight waveguide structure and an E-T joint mode selection structure. Based on a mode conversion principle, the filter is suitable for filtering a high-order TM mode in a circular waveguide transmission system, and has the advantages of small size, easiness in processing, low loss and large power capacity.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Supercooled water identification and elimination device and method for chilled mirror type precise dew-point instrument

The invention discloses a supercooled water identification and elimination device and method for a chilled mirror type precise dew-point meter, and the device comprises a light-emitting tube, a photoelectric receiver, a voltage collector, a temperature collector, a maximum refrigeration switch, and a controller. The voltage collector collects the voltage of the photoelectric signal from the photoelectric receiver, and the temperature collector collects the temperature of the mirror surface; the controller judges whether the possibility of supercooled water exists or not according to whether the temperature of the mirror surface at the dew formation moment is smaller than or equal to 0 DEG C, if yes, the maximum refrigeration switch is turned on, the mirror surface temperature is rapidly reduced until the mirror surface temperature is lower than the dew point temperature by-20 DEG C, the supercooled water is eliminated, and then the voltage value of the photoelectric signal is controlled to be a voltage target value. And an accurate frost point temperature is measured by a dew-point meter. The cold mirror surface supercooled water below 0 DEG C can be identified and eliminated, the measurement accuracy of the frost point temperature is effectively improved, and the measurement accuracy of the cold mirror type precise dew-point instrument is improved.
Owner:BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA

A one-stage EGSB anaerobic ammonium oxidation device based on MABR

A one-stage EGSB anaerobic ammonium oxidation device based on MABR belongs to the field of sewage treatment equipment. This device couples MABR with EGSB, and through the regulation and operation of oxygen supply, it realizes the effective enrichment of AOB and the elimination of NOB, providing matrix guarantee for the effective anaerobic ammonium oxidation reaction; MABR membrane components not only meet the precise oxygen supply requirements, but also act as biological carriers, the biofilm has a large biomass, a long food chain, and AOB is not easy to lose; the AOB reaction area of ​​MABR is separated from the granular sludge anaerobic ammonium oxidation reaction area, and an online monitoring feedback system and a reflux control system are respectively set up, while meeting the optimization and control of the two reaction areas, the operation efficiency of the EGSB system is maximized; MABR membrane components have low aeration energy consumption, reducing the overall operation cost of the system; the reflux system in EGSB is flexible and changeable, which not only meets the operation requirements of the two reaction areas, but also can realize the flushing and control of the biofilm thickness of the MABR membrane components.
Owner:BEIJING ENTERPRISES WATER GROUP LTD

A magnesium fuel cell

The present application relates to a kind of magnesium fuel cell, including single cell or 2 above single cell circuit series, parallel or series-parallel hybrid composition battery;The single cell includes a hollow single cell shell, is transversely arranged with a transition layer in the middle and lower part in single cell shell, the four peripheral edges of transition layer are sealedly connected with shell inner wall surface, transition layer will shell be divided into two upper and lower chambers not communicated each other, electrolyte is filled in upper chamber as electrolyte chamber, lower chamber is filled with regenerative liquid as regenerative liquid chamber;Anode, air cathode are placed in electrolyte chamber;The transition layer changes with the state change of battery discharge process, so that regenerative liquid can react with the discharge product in single cell through transition layer;The regenerative liquid is acid solution.The long-time continuous discharge feasibility of magnesium fuel cell is significantly improved.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Formaldehyde absorption treating fluid and formaldehyde absorber thereof

The invention provides a formaldehyde absorption treating fluid and a formaldehyde absorber thereof, and belongs to the technical field of formaldehyde treatment. The formaldehyde absorption treating fluid comprises the following raw materials in parts by weight: 70-150 parts of a primary amino-containing compound, 0.1-1 part of a catalyst and 10-30 parts of a 3A molecular sieve. The formaldehyde absorption instrument is prepared from the formaldehyde absorption treatment liquid. According to the formaldehyde absorption treating fluid disclosed by the invention, formaldehyde and primary amine in the absorption treating fluid can be subjected to chemical reaction to generate aldimine, and meanwhile, one molecule of water is eliminated, so that the purpose and the effect of thoroughly eliminating formaldehyde are achieved, and the 3A molecular sieve is used for absorbing water molecules generated in the reaction to realize absorption, conversion and elimination of formaldehyde.
Owner:潘瑞华

Microcrack repairing method, glass substrate and chip assembly after packaging of glass substrate

The invention relates to the technical field of semiconductor chips, and particularly discloses a microcrack repairing method, a glass substrate and a glass substrate packaged chip assembly.The method comprises the steps that a glass substrate chip obtained based on single cutting treatment is obtained; sequentially coating the periphery of the glass substrate chip with a reinforcing material; baking the glass substrate chip so as to repair microcracks, formed in the single cutting treatment process, of the glass substrate chip by using the cured reinforcing material; according to the microcrack repairing method, the microcracks at the edge of the glass substrate chip are repaired in a mode of combining reinforcing material coating and baking treatment, the problem of edge microcracks caused by cutting stress in a single cutting link of the glass substrate chip is effectively solved, the structural integrity and mechanical strength of the chip are remarkably improved, and the service life of the chip is prolonged. And resource waste is avoided.
Owner:GUANGDONG FOZHIXIN MICROELECTRONICS TECHNOLOGY RESEARCH CO LTD