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354results about How to "Increase the number of layers" patented technology
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Method for making a transducer
InactiveUS6868594B2Decrease open-circuit sensitivityDecreased open-circuit sensitivityPiezoelectric/electrostrictive device manufacture/assemblyPiezoelectric/electrostriction/magnetostriction machinesTransducerPolymer
A method for producing transducers having a 1-3 composite structure. The transducer element includes a plurality of thin piezoceramic wafers which are electroded on opposing major surfaces. The spaced wafers are separated by a passive polymer layer in a composite structure and the electrodes on the opposing major surfaces are connected to different ones of top and bottom electrode surfaces.
Owner:GUARDIAN IND CORP
Micron and nano material-enhancing bionic layered composite material and manufacturing method thereof
ActiveCN102706219AImprove impact resistanceToughnessSynthetic resin layered productsLaminationBionicsUltimate tensile strength
The invention relates to the field of bionic layered composite materials, in particular to a micron and nano material-enhancing high-impact-resistance bionic layered composite material and a manufacturing method thereof. The material provided by the invention is formed in a manner that toughening structural material layers and enhancing material layers are composited at intervals layer by layer, and the outer layers on both faces of the bionic layered composite material are the enhancing material layers; and the toughening structural material layers are continuous fiber structural bodies formed through interweaving continuous fibers, or non-interweaved continuous fiber structural bodies formed by the continuous fibers, and the enhancing material layers are micron and nano inorganic material granular layers obtained in a manner that a mixture formed by mixing micron and nano inorganic material granules with thermoplastic macromolecular resin is coated on the toughening structural material layers. The material provided by the invention is a more-effective lightweight protective material, and some defects, such as low interlayer strength and too large load, caused by too thick composite layers, infirmness of interlayer bonding, and the like, in the prior art are overcome.
Owner:INST OF CHEM CHINESE ACAD OF SCI
Quick magnetic resonance imaging method based on recursive residual U-type network
ActiveCN110151181ASolve vanishing gradientIncrease the number of layersDiagnostic recording/measuringSensorsPattern recognitionMethod of undetermined coefficients
The invention discloses a quick magnetic resonance imaging method based on a recursive residual U-type network. The method comprises the three steps of data processing, model training and image reconstruction. By adopting the method, a recursive residual module is added to the U-type network, the problems of gradient blast and gradient vanishing caused by back propagation of the network are solved, new network parameters are not added while the layer number of the network is increased, the quality of a reconstructed image is obviously improved, and more image details can be restored.
Owner:HANGZHOU DIANZI UNIV
Composite non-woven fabric ceramic diaphragm for lithium ion battery and preparation method thereof
ActiveCN105304846AImprove stabilityImprove featuresSecondary cellsCell component detailsCeramic coatingSolvent
The invention discloses a composite non-woven fabric ceramic diaphragm for a lithium ion battery and a preparation method thereof. The composite non-woven fabric ceramic diaphragm for the lithium ion battery comprises two layers of non-woven fabric base materials and a ceramic coating composited between the two layers of non-woven fabric base materials. The preparation method comprises the following steps: (1) dissolving macromolecule organic matter in a solvent to form macromolecular solution; (2) dispersing inorganic particles in the macromolecular solution to form organic and inorganic mixture; (3) first coating one side of one non-woven fabric base material evenly with the organic and inorganic mixture, and then pressing the other layer of non-woven fabric base material on a coating layer, and performing drying and rolling to form the composite diaphragm. The problems that the lithium ion battery diaphragm is poor in heat resistance, absorbs water easily, drops easily and is not high in mechanical strength are solved.
Owner:TIANNENG SAFT ENERGY JOINT CO
Non-contact atrial fibrillation intelligent detection system based on deep convolution residual network
ActiveCN108606798AIncrease the number of layersTimely processingCatheterDiagnostic recording/measuringDiseaseNeural network analysis
The invention relates to a non-contact atrial fibrillation intelligent detection system based on a deep convolution residual network. Heart impact signals generated during cardiac ejection of the human body can be collected, and whether or not the heart has atrial fibrillation is analyzed by using the deep convolution residual network. The system includes two parts including a heart impact signalcollection part and a deep convolution residual neural network analysis part. The heart impact signal collection part includes a piezoelectric film sensor, a piezoelectric signal processing module, anAD conversion circuit and a processor. Collected data is uploaded to a server running a deep convolution residual network algorithm, and a judgment result is turned back. A deep convolution residualneural network model includes a one-dimensional convolution layer, a downsampling layer, a batch normalization layer, an activation layer and a fully connected layer. A residual structure contained inthe model is formed by adding original signals and deep features extracted after several convolutional sample normalization activation operations. The system can be used for uninterrupted monitoringof the human body at night and give a judgement prompt in time to facilitate timely treatment of disease conditions.
Owner:NORTHEASTERN UNIV
3D nonvolatile memory device
ActiveUS20160111361A1Increase process marginSimple structureSemiconductor/solid-state device detailsSolid-state devicesMemory cellCell region
A 3D nonvolatile memory device including memory cells vertically stacked is disclosed. Word lines are integrally formed to be elongated over adjacent cell regions spaced apart from each other, and portions of the word lines between the cell regions are partially etched in a stepped shape to form word line contact regions.
Owner:SK HYNIX INC
Light-weight concrete for 3D printing, and preparation method and application thereof
ActiveCN105948668AShort initial setting timeSolve the problem of special-shaped formworkAdditive manufacturing apparatusPortland cementUltimate tensile strength
The invention provides a light-weight concrete for 3D printing, and a preparation method and application thereof. The light-weight concrete is prepared from the following raw materials in parts by weight: 100 parts of 52.5R ordinary Portland cement, 6-12 parts of quick-setting sulfoaluminate cement with the strength level of not less than 42.5, 7-10 parts of fly ash, 100-250 parts of composite inert light-weight filler, 1.2-6.5 parts of polypropylene fiber, 0.06-0.2 part of viscosity modifier, 0.5-1.5 parts of flexibility modifier and 25-40 parts of water. Compared with the traditional concrete material, the dead weight of the material is obviously lowered by 25-40%, the pressure deformation from the upper layer material to the lower layer material in the printing process is greatly reduced, and the number of layers of one-step continuous printing can be further increased, thereby shortening the construction period. Besides, the material has certain heat-shielding and heat-insulating properties, so that the light-weight concrete is more energy-saving and environment-friendly when being applied to the field of buildings.
Owner:CHONGQING CONSTR ENG NEW BUILDING MATERIALS +1
Dead load type torque standardizing machine
InactiveCN103575462ASolve the problem that it is difficult to achieve accurate automatic arbitrary loadingImprove reliabilityForce/torque/work measurement apparatus calibration/testingCircular discControl system
The invention belongs to the field of torque measuring and testing and provides a dead load type torque standardizing machine to solve the problems that in the prior art, the reliability is poor, the efficiency is low and verification cannot be achieved accurately and fast. The dead load type torque standardizing machine comprises a supporting component, a standard force loading mechanism, a lever mechanism, a torque sensor installing part and a control system of the torque sensor installing part. The standard force loading mechanism comprises a loading frame, a bracket mechanism and a disc loading mechanism, the output end of a stepping motor A penetrates through an upper installing disc, weights can be clamped or loosened through a clamping transmission mechanism and a clamping arm, and the upper ends of the weights penetrate through weight grooves in a lower installing disc. The control system is fixed on the lower portion of an installing plate, the standard force loading mechanism and the stepping motor of the bracket mechanism are controlled to rotate through the control system, and therefore the weights can be loaded and unloaded. The weights can be selected and combined at will to be used according to the verification demand of the torque sensor, a drive mechanism is simple, and reliability is high.
Owner:JILIN UNIV
Multi-shell metal oxide hollow sphere synthesized based on anion adsorption and preparation method as well as application thereof
ActiveCN105762349AIncrease the number of layersRealize arbitrary modulationCell electrodesSecondary cellsLithium-ion batterySalt solution
The invention relates to a multi-shell metal oxide hollow sphere synthesized based on anion adsorption and a preparation method as well as application thereof. The preparation method of the multi-shell metal oxide hollow sphere synthesized based on the anion adsorption comprises the following steps of using a carbon sphere prepared by utilizing a hydrothermal method as a template, and obtaining the metal oxide hollow sphere with a multi-shell structure through uniformly dispersing the carbon sphere template in a metal anionic salt solution and further roasting an obtained mixture at a high temperature. The hollow sphere prepared by adopting the method can be modulated in the number of shells between two layers and five layers, is controllable in size and shell wall thickness, is applied to the field of lithium ion batteries, shows performance superior to that of a nano sheet or a single-shell hollow sphere, and has a wide application prospect; the advantages of a low-dimensional nano material and a three-dimensional hollow structure are effectively combined.
Owner:中科汇生(北京)医药科技有限公司
An emotion prediction system based on a deep convolutional network
PendingCN109583419AIncrease the number of layersIncrease diversityNeural architecturesAcquiring/recognising facial featuresFeature extractionSample image
The invention discloses an emotion prediction system based on a deep convolutional network. Further, a further approach is provided, The method comprises the steps of manufacturing a human face emotion sample image library, wherein a convolutional neural network is utilized to train and generate a classifier, the classifier is utilized to carry out a face emotion pre-judgment step, and the step ofmanufacturing the face emotion sample image library comprises the following steps: S11, sample collection: collecting and sorting face expression images; and S12, sample classification: carrying outclassification processing on the collected face expression images. Face emotions are divided into three categories: neutrality, positive and negative. The method is reasonable in design and practicalin function, the original image is directly subjected to feature extraction and then identified, and the identification effect is poor. In order to solve the problem, the number of layers of the neural network is increased when the neural network is built, so that the network can extract deeper features; Wherein the convolutional neural network comprises 24 convolutional layers and 2 full connection layers. The classification effect and recognition robustness of the multi-level convolutional neural network are improved well, and the multi-level convolutional neural network is diversified in structure and suitable for popularization.
Owner:嘉康信息科技(深圳)有限公司
Method of artificial board production line thermopress loading and unloading and machine set
InactiveCN1686690AIncrease the number of layersSolving loading and unloading problemsWood working apparatusFlat articlesHeat pressEngineering
A method for loading, hot-pressing and unloading the artificial board blanks in its production line features that the up-down movement of suspended cage is performed by the lift preloader, and the board loader can load the boards into press. Its system is composed of lift preloader, carriage-type loader, hot press and unloader. Its advantage is high productivity.
Owner:SHANGHAI WOOD-BASED PANEL MASCH CO LTD
Energy absorption structure for corrugated sandwich panel
InactiveCN104441839AStrong resilienceImprove impact resistanceSynthetic resin layered productsGlass/slag layered productsCurve shapeAdhesive
The invention discloses an energy absorption structure for a corrugated sandwich panel. The energy absorption structure consists of an upper panel, multiple layers of corrugated cores, a sandwich panel and a lower panel, all of which are sequentially stacked and are adhered by an epoxy-structure adhesive or brazed to form an integrated structure; the section of the corrugated core is in a trapezoid, triangle or sine curve shape, and when the layer number of the corrugated cores is larger than or equal to two, the arrangement manner of the corrugated cores is regular arrangement, staggered arrangement or 0-degree or 90-degree arrangement. The energy absorption structure for the corrugated sandwich panel has the characteristics of light weight, strong toughness and good shock resistance; in the whole energy absorption procedure, the impact force is stable; due to the openness of a core material structure, the energy absorption structure can effectively and actively dissipate collision heat during collision, so that the structure material avoids yielding in advance under the influence of high temperature. The energy absorption structure for the corrugated sandwich panel can be applied to an automobile buffering energy absorption device, and also can be applied to any load and field needing the buffering energy absorption structure.
Owner:HUNAN UNIV
Voice noise lowering method based on RNN and voice recognizing method
InactiveCN109712628AIncrease the number of layersEffective utilizationSpeech analysisHidden layerSpeech identification
The invention discloses a voice noise lowering method based on RNN and a voice recognizing method, and belongs to the field of voice recognizing. In a noise environment, voice signal feature parameters with better performance can be extracted. The voice noise lowering method includes the steps that a DRNN noise lowering model is established; based on RNN, two hidden layers are added, there are noconnecting layers on the two hidden layers, an original hidden layer of RNN is located between the two added hidden layers, and the three hidden layers are located between an input layer and an outputlayer; a voice training signal X with noise is subjected to zero fill so that dimensions are kept uniform, after zero fill, the signal is divided into N groups, each group includes three data, the grouped data is input into the DRNN noise lowering model to be trained, and parameters of the DRNN noise lowering model are determined; the DRNN noise lowering model with the determined parameters is used for conducting noise lowering on the voice signal or the feature parameters. The voice recognizing method adopts the DRNN noise lowering model for conducting noise lowering on the feature parameters before recognizing and training on the basis.
Owner:HARBIN UNIV OF SCI & TECH
Slit antenna, parameter regulation method and terminal thereof
ActiveCN101719598AEvenly distributedSmall sizeAntenna supports/mountingsSlot antennasEngineeringBand width
The invention discloses a slit antenna, a parameter regulation method and a terminal thereof, which belong to the field of antennae. The slit antenna comprises a floor, a coupling piece and a feeding point, wherein a half-sealed notch area is formed at one side of the floor; the coupling piece is positioned in the half-sealed notch area, and slits are formed among the coupling piece and the bottom wall and the side wall of the half-sealed notch area; and the feeding point is positioned in the slit formed between the coupling piece and the side wall. The method comprises the step of regulating the size of the slit, the size of the half-sealed notch area, the size of the coupling piece and at least one in the number of the layers of the coupling piece so as to obtain a corresponding resonant frequency and a corresponding bandwidth. The terminal comprises the slit antenna. The invention enables current to be evenly distributed on the floor, has better property of omnidirectional radiation, smaller antenna size and smaller occupied area of a basal plate and can retain more areas for arranging other components.
Owner:HUAWEI DEVICE CO LTD
Radiation three-dimensional position detector
ActiveUS7087905B2Narrow downIncrease the number of layersMaterial analysis by optical meansRadiation intensity measurementOptical propertyScintillator
The radiation three-dimensional position detector of the present invention comprises a scintillator unit (10), a light receiving element (20) and an operation section (30). The scintillator unit is disposed on the light incident plane of the light receiving element, wherein the scintillator unit is comprised of four layers of scintillator arrays, each layer being composed of scintillator cells arrayed in 8 row −8 column matrix. The scintillator cell produces scintillation light corresponding to the radiation absorbed thereby. The optical characteristic of a partition material for separating neighboring scintillator cells, which faces at least one same side face is different between a scintillator cell Ck1,m,n included in one scintillator array layer (k1-th layer) and a scintillator cell Ck2,m,n included in the other scintillator array layer (k2-th layer).
Owner:HAMAMATSU PHOTONICS KK
Layered ceramic capacitor
ActiveUS7595974B2Increase the number of layersLarge capacitanceFixed capacitor electrodesFixed capacitor dielectricCapacitanceCeramic capacitor
Owner:TDK CORPARATION
Preparation method of ultra-light sandwich structure composite material
ActiveCN106042503AStrong designabilityEliminate edge bandingLaminationLamination apparatusHoneycombMetal mold
Disclosed is a preparation method of an ultra-light sandwich structure composite material. The method comprises the steps that a hot melting prepreg material is prepared; then, the prepared hot melting prepreg material is laid according to the preset paving direction and paving layers, and a laminate preform body is obtained; then, the surface of a curved metal mold is paved with metal barrier strips, the metal barrier strips and a metal mold are fixedly connected mechanically, and then, the laminate preform body is laid on the side face flanges of the barrier strips; then, a coating for an opening honeycomb with the density being 30-50 kg / m<3> coats the surface of the laminate preform body, and then the honeycomb is paved with the hot melting prepreg material; finally, the preform body is sealed by adopting a silicone rubber sealing strip, curing is performed for 2 h under the temperature of 130 DEG C, and the ultra-light sandwich structure composite material is obtained. According to the method, the weight of the product is lowered, the problem that the honeycomb on the side face is exposed is solved; meanwhile, the skin can be effectively prevented from warping, and the phenomenon that honeycomb cores in a local area are sunken is avoided.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
3D nonvolatile memory device having common word line
ActiveUS9515084B2Increase process marginSimple structureSemiconductor/solid-state device detailsSolid-state devicesCell regionCommon word
A 3D nonvolatile memory device including memory cells vertically stacked is disclosed. Word lines are integrally formed to be elongated over adjacent cell regions spaced apart from each other, and portions of the word lines between the cell regions are partially etched in a stepped shape to form word line contact regions.
Owner:SK HYNIX INC
Prestressed loam wall and construction process thereof
InactiveCN104895224AGuaranteed service lifeReduce aspect ratioWallsBuilding material handlingPre stressRebar
Owner:ZHENGZHOU UNIV
Voice coil motor
InactiveCN102570762AFlexibility to increase the number of slicesIncrease the number of piecesDynamo-electric machinesMountingsPrinted circuit boardVoice coil
The invention relates to a voice coil motor, which comprises a lens cylinder, a magnet, at least one spring plate and a printed circuit board process coil, wherein the lens cylinder is provided with a lateral wall and a first accommodating cavity for accommodating a lens; the magnet surrounds the lateral wall and is separated from the lateral wall; the at least one spring plate is connected with the lens cylinder; and the printed circuit board process coil is fixed on the lateral wall and is opposite to the magnet. The printed circuit board process coil generates a magnetic field force with the magnet after being electrified, to drive the lens cylinder to move along the axis. The at least one spring plate generates deformation when the lens cylinder moves, and applies a restoring force to the lens cylinder, so that the lens cylinder moves to a preset position from an initial position under the actions of the magnetic field force and the restoring force, is then still and restores to the initial position after the current of the printed circuit board process coil is powered off. The voice coil motor is convenient to assemble.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
Hairpin flat wire motor stator and hairpin flat wire motor
ActiveCN110829641ADesign for performanceFulfil requirementsMagnetic circuit stationary partsWindings conductor shape/form/constructionElectric machineNew energy
The invention provides a hairpin flat wire motor stator and a hairpin flat wire motor; the hairpin flat wire motor stator comprises: a stator core structure, wherein the inner side of the stator corestructure is uniformly provided with a plurality of winding grooves extending along the axial direction of the stator core structure at intervals, one end face side of the stator core is a winding hairpin end, and the other end face side of the stator core is a winding welding end; stator windings that are arranged in the winding grooves, the stator windings comprise a first phase winding, a second phase winding and a third phase winding, and each of the first phase winding, the second phase winding and the third phase winding comprises four branches connected in parallel; input terminals andoutput terminals of the first phase winding, the second phase winding and the third phase winding are all distributed at the winding hairpin end. According to the invention, under the conditions of alow-voltage platform and high speed of an new energy automobile driving motor, the requirements of motor performance design and manufacturing manufacturability design can be better met.
Owner:HEFEI JUYI POWER SYST CO LTD
Three-dimensional coiled structure with function of automatically adjusting structure, as well as preparation method and applications of three-dimensional coiled structure
ActiveCN108653815AStabilizes vascular structuresIncrease the number of layersSynthetic resin layered productsMedical devicesVascular structureCoil structure
The invention provides a three-dimensional coiled structure with the function of automatically adjusting the structure, as well as a preparation method and applications of the three-dimensional coiledstructure. The three-dimensional multi-layer coiled structure has the function of automatically adjusting the self structure aiming at the external environment, and can be taken as the tissue engineering blood vessel similar to the real vascular structure to be applied to the fields including medical materials, tissue engineering and the like.
Owner:柔脉医疗(深圳)有限公司
Installation of omnibearing wind collecting cap
InactiveCN101092933AIncrease powerLarge diameterRenewable energy generationMachines/enginesEngineeringTower
This invention relates to an amnibearing wind-collecting cover device composed of four bell mouths collecting wind energy at water level, a central shaft and a semispherical wind wheel and a shift driver, in which the four bell mouths are face to face in pairs towards all directions to form an inlet and an outlet connected at the central shaft, the inlet of bell mouth 3 is facing to the semispherical wheel, the shift driver is connected with the central shaft at a base, in which the bell mouths can collect wind energy in all directions to rotate the semispherical wheel, the diameter of which is small, vibration is less and operation is stable, the wind cover can increase power of wind generators by enlarging diameter of bell mouths to increase collection area, and can be made to a tower or a wall for placing all devices, especially suitable for mountain areas.
Owner:YUNNAN NORMAL UNIV
A vertical type indoor planting box
InactiveCN106386269AIncrease the number of layersGuaranteed normal growthMechanical apparatusSpace heating and ventilation safety systemsNutrient solutionEngineering
The invention provides a vertical type indoor planting box comprising a cylindrical transparent box body; one side of the box body is provided with a door plate; a nutrient solution cavity, a sterilization cavity and a planting cavity are formed from bottom to top successively in the box body; a plurality of annular planting plates are arranged in the planting cavity; the planting plates are arranged on the inner wall of the planting cavity at equal intervals in a parallel manner from bottom to top; a sprinkling mechanism is arranged at the central axis in the planting activity; the sprinkling mechanism is connected with the nutrient solution cavity. The vertical type indoor planting box can solve the problem that no flowers and vegetables can be planted indoors.
Owner:成都测迪森生物科技有限公司
Heat exchanger
InactiveCN101198825AImprove heat exchange performanceSmall pressure lossEnergy recovery in ventilation and heatingHeat recovery systemsIndoor airEngineering
A heat exchanger of small size and thin type is provided. It includes a machine body (1), an indoor suction port (3) for sucking indoor air (2), an indoor diffuser (4), an outdoor suction port (7) for sucking in outdoor air (6), an outdoor diffuser (8), a motor (11) provided inside the machine body (1), an exhaust blade (9) and an intake blade (10) disposed at the motor (11), an exhaust fan casing (12) provided around the exhaust blade (9), an intake fan casing (13) provided around the intake blade (10), and a plurality of heat exchange elements (16) disposed around the exhaust fan casing (12) and intake fan casing (13).
Owner:PANASONIC CORP
Press-fitting method and lamination structure for flexible circuit board
InactiveCN105555032ALess clean upEnsure consistencyFlexible printed circuitsLaminating printed circuit boardsFlexible circuitsKraft paper
The invention discloses a press-fitting method and a lamination structure for a flexible circuit board. The press-fitting method comprises the steps of laying a buffer layer on the lower carrier plate of a press-fitting machine; paying a lamination layer on the buffer layer, wherein the lamination layer comprises brown paper, a filling layer, a release layer, a circuit board to be press-fit, and a release layer, a filling layer and brown paper stacked on the circuit board; repeatedly laying a number of lamination layers in the step S20 from the bottom up; laying a buffer layer on the topmost lamination layer; and starting the press-fitting machine for hot-pressing, wherein each lamination layer and the corresponding buffer layer, as well as each two adjacent lamination layers are separated by a thermal-conductive rigid pressure plate, and the filling layers can be melted after heating to fill the gaps between the brown paper and the release layers. According to the press-fitting method, the melted PE liquid can be adsorbed, thus the cleanup work after press-fitting is reduced; the consistency of different batches of products can be effectively ensured, thus control on the product precision is facilitated; the layer number of the circuit boards in one time of press-fitting is increased, thus the production efficiency is greatly enhanced.
Owner:SHENZHEN XINYU TENGYUE ELECTRONICS
Heating apparatus, heating method, coating apparatus, and storage medium
InactiveUS20070194005A1Small heightShorten operation timeConveyorsMuffle furnacesEngineeringOperation time
A heating apparatus cooling a substrate heated by a hot plate at a cooling position adjacent to the hot plate, capable of achieving a smaller height and reducing an operation time in the apparatus, in which contamination of the substrate by particles or the like is less likely, and the like, are provided. The heating apparatus includes a hot plate for heating a wafer representing a substrate from below, in a heating chamber having a wafer load / unload port. In addition, a wire for transferring the wafer between a cooling position of the substrate adjacent to the load / unload port of the heating chamber (position above a cooling plate) and a position above the hot plate is provided and extends. The wafer is mounted on a gap forming member provided on the wire, and thereafter loaded into the heating chamber.
Owner:TOKYO ELECTRON LTD
Air purifier with PM2.5 (particulate matter 2.5) removing function on basis of micro-algae
InactiveCN104633778AImprove purification effectEasy to put inMechanical apparatusLighting and heating apparatusParticulatesRoom air cleaners
The invention discloses an indoor air purifier which comprises a liquid storage tank, filter elements, activated carbon, an exhaust fan and ultraviolet lamp devices. The indoor air purifier has the advantages that air can be upwardly exhausted from the lowermost layer by the exhaust fan, a spray nozzle is arranged above each layer of filter elements, alga liquid sprayed by the spray nozzles can be sufficiently in contact with the air, particulate matters and water-soluble matters in the air can be dissolved in water, accordingly, a PM2.5 (particulate matter 2.5) value of the air can be greatly lowered, and the air further can be humidified; NOx, formaldehyde, heavy metal ions and the like in the air can be absorbed and utilized by micro-algae after being dissolved in the water and subjected to reaction by the aid of culture media; pollutants in the air can be absorbed by the micro-algae and can be converted into nutrition of the micro-algae, and oxygen can be released by the aid of photosynthesis; VOCs (volatile organic chemicals) in the air can be adsorbed and removed by the activated carbon of activated carbon layers; inactivation effects can be realized for bacteria in the air by ultraviolet lamps; four air purification technologies including a micro-alga purification technology, an activated carbon adsorption technology, a water washing purification technology and an ultraviolet sterilization technology are combined with one another, and accordingly service requirements of modern families can be met.
Owner:KUNSHAN QINGXU ENVIRONMENT TECH +1
Multi-scale multi-shape ceramic phase reinforced aluminum-based anti-ballistic structure composite material and preparation method thereof
ActiveCN110438362ADelay premature failureImproved resistance to multiple roundsAluminum matrix compositesProjectile
The invention relates to a multi-scale multi-shape ceramic phase reinforced aluminum-based anti-ballistic structure composite material and a preparation method thereof. The multi-scale multi-shape ceramic phase reinforced aluminum-based anti-ballistic structure composite material and the preparation method solve the problem that a traditional aluminum-based composite material is low in ceramic volume fraction, poor in anti-ballistic performance and difficult to achieve projectile body deflecting. The material is composed of densely-arranging ball bodies, densely-arranging columns, an aluminum-containing material and ceramic powder filler. According to the method, firstly, the columns are densely arranged in a mold; secondly, the ball bodies are densely arranged on the columns; thirdly, gaps of the columns and the ball bodies are filled with filler powder; fourthly, cold pressing preheating is carried out to prepare a prefabricated body; fifthly, aluminum liquid is molten; and sixthly,the molten aluminum liquid is pressed into the prefabricated body, and pressure maintaining and demoulding are carried out to form the multi-scale multi-shape ceramic phase reinforced aluminum-based anti-ballistic structure composite material. The ceramic content is 70vol.% to 95vol.%, and the excellent elastic properties are achieved. The multi-scale multi-shape ceramic phase reinforced aluminum-based anti-ballistic structure composite material and the preparation method are used in the field of armor materials.
Owner:HARBIN INST OF TECH
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