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214results about How to "Achieve diffusion" patented technology
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Light emitting diode chip having electrode pad
ActiveCN103222074APrevent reduction of light emitting areaAlleviate current congestionSemiconductor devicesInsulation layerActive layer
Disclosed herein is an LED chip including electrode pads. The LED chip includes a semiconductor stack including a first conductive type semiconductor layer, a second conductive type semiconductor layer on the first conductive type semiconductor layer, and an active layer interposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a first electrode pad located on the second conductive type semiconductor layer opposite to the first conductive type semiconductor layer; a first electrode extension extending from the first electrode pad and connected to the first conductive type semiconductor layer; a second electrode pad electrically connected to the second conductive type semiconductor layer; and an insulation layer interposed between the first electrode pad and the second conductive type semiconductor layer. The LED chip includes the first electrode pad on the second conductive type semiconductor layer, thereby increasing a light emitting area.
Owner:SEOUL VIOSYS CO LTD
Communication device and communication system as well as method of communication between and among mobile nodes such as vehicles
InactiveCN101099346AImprove performanceImprove usabilitySpecial service provision for substationError preventionCommunications systemMessage type
In order to provide a communication device (100) for communication between and among mobile nodes (10, 12, 14, 16) comprising at least one transmission unit (20) for communicating at least one message (22), - at least one receiver unit (30) for sensing at least one arriving message (32, 34, 36) being communicated by at least one neighbouring node (12, 14, 16), and at least one localisation unit (60) for determining and / or for monitoring the moving direction and / or the current position of the respective node (10, 12, 14, 16), wherein the amount of broadcast messages in inter-node communication, in particular in inter-vehicle communication, is reduced, it is proposed that each message (22; 32, 34, 36) being communicated between and among the nodes (10, 12, 14, 16) is assigned to at least one message type and / or message subject and - to at least one direction area relating to the moving direction of the node (10, 12, 14, 16) by which the respective message (22; 32, 34, 36) is transmitted, the moving direction being determined and / or monitored by the localisation unit (60) of the respective node (10, 12, 14, 16).
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Image encryption method based on multidimensional chaotic system and Josephf scrambling
ActiveCN111105339AAchieve diffusionIncreased sensitivityImage data processing detailsKey spaceAlgorithm
The invention provides an image encryption method based on a multi-dimensional chaotic system and Josephf scrambling, and the method comprises the steps: carrying out the initialization of PWLCM mapping and 2D-LSCM mapping, and obtaining a sequence X, a sequence Y and a sequence Z; uniformly dividing the original image into sub-matrixes according to indexes, carrying out Gray curve scrambling on pixels in the sub-matrixes, and carrying out sequential recombination to obtain a recombined image matrix; taking out elements in the sequence X as a crossover operator, and performing bit crossover operation on the recombined image matrix to obtain an image matrix; taking out a pseudo-random value in the sequence Y as the step value of fixed-step Josephh scrambling, and performing Josephh scrambling operation on the image matrix to obtain a matrix; and taking out the pseudo-random value in the sequence Z and the element pixel value in the matrix to carry out XOR ciphertext feedback to obtain afinal encrypted image. The method can effectively encrypt the image, has a large key space, has high sensitivity to the to-be-encrypted image and the initial key, and has good defense capability whenresisting various attack modes.
Owner:ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
Microblog aggregation method and system supporting cross-platform interaction
The invention discloses a microblog aggregation method and system supporting cross-platform interaction, and relates to a social network technology. The method comprises the following steps: S1, designing the microblog aggregation system, and setting a third-party account for a current microblog platform through the microblog aggregation system; S2, asking a user to register an account of the microblog aggregation system and log in the platform to initiate an operation request; S3, identifying a microblog platform involved in the request submitted by the user through the microblog aggregation system, authenticating the microblog aggregation system by using the registered microblog platform account of the user or the third-party account, calling the API (Application Program Interface) of the involved microblog platform through the authenticated microblog aggregation system to process the operation request; S4, integrating the processing results of the microblog aggregation system and the involved microblog platform, and feeding back to a user. The platform comprises a microblog aggregation system server and a microblog aggregation system client between which data interaction is realized through an information management module, an information infusion module, a user interaction module and a search function module.
Owner:TSINGHUA UNIV
Supported metal organic skeleton/graphene oxide hydrogen storage material and preparation method thereof
InactiveCN104525125AIncrease the level of hydrogen absorption at room temperatureImprove controllabilityOther chemical processesHydrogen productionMetal-organic frameworkPalladium
The invention discloses a supported metal organic skeleton / graphene oxide hydrogen storage material and a preparation method thereof. The hydrogen storage material is formed by steeping palladium metal in a metal organic skeleton / graphene oxide carrier, wherein the loading capacity of the palladium metal is 1.0-5.0% of the mass of the carrier; and the metal organic skeleton is ZIF-8. The preparation method comprises the following steps: firstly heating reactants of dissolvable zinc salt, 2-methylimidazole and graphene oxide to prepare a metal organic skeleton / graphene oxide carrier material, and then loading dissolvable palladium salt in the metal organic skeleton / graphene oxide carrier to obtain the supported metal organic skeleton / graphene oxide hydrogen storage material under the condition of existence of a reductant and a dispersant by adopting an excessive steeping method. The supported metal organic skeleton / graphene oxide hydrogen storage material has good hydrogen storage performance at room temperature, and the process is simple.
Owner:JIANGSU UNIV OF SCI & TECH
Copper target assembly and manufacturing method thereof
The invention provides a copper target assembly and a manufacturing method of the copper target assembly. The manufacturing method comprises the steps that a back plate and a copper target are provided, wherein the back plate comprises a first welding face, and the copper target comprises a second welding face; a pattern composed of multiple protrusions is formed on the first welding face; the second welding face and the first welding face provided with the pattern are oppositely arranged and attached to each other to form an initial assembly; welding treatment is conducted on the initial assembly, the protrusions of the first welding face are embedded into the second welding face, a welded layer is formed between the copper target and the back plate, the thickness of the welded layer is larger than or equal to the height of each protrusion, and then the copper target assembly is obtained. By the adoption of the copper target assembly and the manufacturing method of the copper target assembly, the possibility that a gap appears in the welded layer is effectively reduced, so that the quality and performance of the formed copper target assembly can be effectively improved, and the yield and performance of a manufactured semiconductor chip are improved beneficially.
Owner:KONFOONG MATERIALS INTERNATIONAL CO LTD
Efficient zinc phosphate micro-nano anticorrosion agent preparation method
InactiveCN103896235AUniform sizeGood dispersionMaterial nanotechnologyAnti-corrosive paintsWater bathsMicro nano
The invention belongs to the field of inorganic chemistry, and particularly relates to an efficient zinc phosphate micro-nano anticorrosion agent preparation method, wherein the product is applied in the field of metal heavy corrosion. According to the present invention, a cycle ultrasonic cavitation effect and a high-temperature high-pressure water bath thermal effect are adopted to perform synchronous and synergetic regulation to prepare the efficient zinc phosphate micro-nano anticorrosion agent, wherein the synchronous and synergetic effect of the two effects is adopted so as to make the product system be well dispersed, ensure the uniformity of crystal nucleation and effectively solve the difficult problem of difficult synchronous regulation on the particle size and the crystallization degree of the nanometer crystal, and a microwave heating mode is adopted to dry the product so as to reduce the agglomeration; the prepared micro-nano zinc phosphate product has advantages of high purity, complete crystallinity, narrow particle size distribution, good dispersion and the like, wherein the effective corrosion protection time of the zinc phosphate micro-nano anticorrosion agent is up to 1056 h and is far superior to the effective corrosion protection time of the commercially available zinc phosphate anticorrosion material; and the method has characteristics of simple process and low cost, and is suitable for large-scale production.
Owner:EAST CHINA UNIV OF SCI & TECH
Image encryption method based on chaotic sequence and DNA coding
ActiveCN113225449AEfficient scramblingImplement bit-level obfuscationUser identity/authority verificationSecuring communication by chaotic signalsCiphertextTheoretical computer science
The invention provides an image encryption method based on a chaotic sequence and DNA coding. The method comprises the following steps: calculating a hash value of an image matrix converted from a grayscale image, and updating an initial value of a chaotic system; generating a sequence according to a control parameter of the Bernoulli shift mapping and the updated initial value, wherein the sequence is used as a random value of a Knuth-Durstenfeld shuffling method, and scrambling is carried out on the random value of the Knuth-Durstenfeld shuffling method; carrying out iteration on the Lorenz chaotic system to obtain three sequences; intercepting elements as bits of cyclic shift to perform bit-level scrambling, wherein elements in the sequence are used for selecting codes as a DNA sequence according to a DNA coding rule; performing state conversion by using a Mealy state machine to obtain a new DNA sequence, wherein elements in the sequence are used for DNA coding rule selection for DNA decoding, and a ciphertext image is obtained. According to the method, the randomness of chaos and the nonlinearity of DNA coding and Mealy state conversion are fully utilized, the correlation of adjacent pixels of the image is effectively eliminated, and the security of the ciphertext image is improved.
Owner:ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
Welding method of aluminum target assembly
ActiveCN104588810AImprove welding efficiencyImprove welding strengthSoldering apparatusWelding/soldering/cutting articlesHot isostatic pressingAluminium
The invention provides a welding method of an aluminum target assembly. The welding method comprises the steps that an aluminum target and an aluminum back plate are provided; a brazing filler metal wetting layer is formed on the surface, to be welded, of the aluminum target or the surface, to be welded, of the aluminum back plate; the aluminum back plate and the aluminum target with the formed brazing filler metal wetting layer are placed in a vacuum packaging sleeve, and the surface, to be welded, of the aluminum back plate makes contact with the brazing filler metal wetting layer, or, the aluminum target and the aluminum back plate with the formed brazing filler metal wetting layer are placed in the vacuum packaging sleeve, and the surface, to be welded, of the aluminum target makes contact with the brazing filler metal wetting layer; the aluminum target, the brazing filler metal wetting layer and the aluminum back plate are welded together through a hot isostatic pressing technology so as to form the aluminum target assembly; after welding is accomplished, the vacuum packaging sleeve is cooled and removed to obtain the aluminum target assembly. By means of the welding method, welding between the aluminum target and the aluminum back plate can be achieved, the welding efficiency is high, the formed aluminum target assembly is high in welding strength and low in deformation, and the demand of long-term stable production and usage of targets can be met.
Owner:KONFOONG MATERIALS INTERNATIONAL CO LTD
Array full-ring photon sieve light evener and manufacturing method thereof
InactiveCN102023386AAchieve refocusUniformity achievedDiffraction gratingsPhotomechanical exposure apparatusWavefrontGaussian beam
The invention discloses an array full-ring photon sieve light evener and a manufacturing method thereof. The array full-ring photon sieve light evener is a full-ring photon sieve array manufactured on a transparent medium, full-ring photon sieves are used as basic units and are a plurality of circular holes manufactured on a transparent substrate based on a Fresnel wave band sheet by the following steps of: firstly manufacturing photon sieves with the diffraction apertures one time of the corresponding Fresnel ring on the transparent medium, then still etching circular holes on the other Fresnel ring bands to form transparent etching circular holes on the odd and even ring bands of the wave band sheet, which are respectively the light-transmitting holes of the odd rings and the etching-phase light-transmitting holes of the even rings, wherein the phase of the etching-phase light-transmitting holes is pi, the size of each etching circular hole is the same as the width of the corresponding ring bands, and then forming the full-ring photon sieve by using the etching circular holes and the original diffraction holes. The invention realizes converting gauss light beams and other wavefront uneven laser beams into wavefront diffraction light beams approaching to a plane.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI
Oxidation washing system equipment based on new resin material treatment
ActiveCN111773854ASolve cleaning difficultiesImprove sealingUsing liquid separation agentSpraying apparatusReciprocating motionMaterials processing
The invention provides oxidation washing system equipment based on new resin material treatment, relates to the technical field of resin material processing, and solves the problems that when gas is filtered, spraying filtration is realized only through a single spraying structure, and linkage movement of multiple filtering structures cannot be realized through structural improvement. In addition,the seepage phenomenon is likely to occur in the spraying and filtering process, and temporary collection cannot be achieved when seepage occurs. The oxidation washing system equipment based on new resin material treatment comprises a box body, the box body is filled with liquid, and a vibration cleaning structure is installed in the box body. A shifting block is in contact with a spray pipe, andthe spray pipe is in an up-and-down reciprocating motion state when the shifting block rotates along with a rotating shaft, so that further diffusion of water mist sprayed by the spray pipe is realized.
Owner:山东仲宜复合材料有限公司
Preparation method of printed display device
ActiveCN108346679AReduce surface tensionGood spreadabilitySolid-state devicesSemiconductor/solid-state device manufacturingNitrogenDisplay device
The invention discloses a preparation method of a printed display device, which comprises the steps of depositing a first electrode layer on a substrate; preparing a pixel defining layer on the firstelectrode layer, and forming a Bank structure and pixel pits; ink-jet printing functional layer ink in the pixel pits, ink-jet printing a second solvent on the top surface of the Bank structure, evaporating the second solvent in a sealed container, and performing steam treatment on the functional layer ink by the obtained steam of the second solvent, wherein the functional layer ink comprises a functional layer material and a first solvent; placing the device subjected to steam treatment in a room temperature condition, namely, an air environment or a nitrogen environment, for natural drying;then performing thermal treatment to form a functional layer; depositing an electron transport layer and a second electrode layer on the functional layer, and packaging to obtain the printed display device. The preparation method improves the uniformity of a thin film and the wettability of the functional ink and the pixel defining layer, ensures uniform spreading of the ink so as to play an effect of suppressing the leakage current, is simple and easy to implement and can substantially reduce the manufacturing difficulty and the manufacturing cost.
Owner:GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
Production process of crystalline silicon double-sided solar battery
InactiveCN102664217AEliminates thermal diffusion stepLeave out the edgeFinal product manufactureSemiconductor devicesTrappingOptoelectronics
The invention relates to a production process of a crystalline silicon double-sided solar battery, comprising the following steps of: etching to enable a silicon substrate to have an etched face; manufacturing a window which accords with an electrode pattern on a backlight face of the silicon substrate; carrying out heat treatment on the silicon substrate to form a PN junction in the window; washing the silicon substrate; plating at least two layers of antireflection films on a light reflective face of the silicon substrate; plating the antireflection film on a backlight face of the silicon substrate; printing electrode slurry on a silk screen; and sintering to obtain a metal electrode so as to finish the manufacturing of a battery cell. The production process disclosed by the invention is ingenious in concept, is compatible with a conventional industrial battery production line and is easy for industrial manufacture; compared with the conventional solar battery, an electrode grid line is not arranged on the light reflective face of the double-sided solar battery so as to prevent the electrode grid line of the light reflective face from shielding sunlight; the backlight face is provided with a light trapping structure and an antireflection film layer so that the backlight face of the battery also can absorb and utilize the sunlight; and the antireflection films of the light reflective face and the backlight face can passivate the solar battery, so as to be good for improving the efficiency of the battery.
Owner:杨正刚
Mechanical-airflow combination disturbance chemical application system
InactiveCN105191899AAchieve diffusionStrong penetrating powerInsect catchers and killersAgricultural engineeringAirflow
The invention discloses a mechanical-airflow combination disturbance chemical application system which comprises a chemical liquid box, a filter, a chemical liquid pump and a spray rod. The chemical liquid box, the filter, the chemical liquid pump and the spray rod are connected in sequence through pipes. A spray head A, a spray head B A, a spray head C, a spray head D and a spray head E are installed on the spray rod. A connecting rod device for pushing a crop canopy open is arranged in the front of the spray rod, and the connecting rod device is used for pushing the crop canopy open to generate cracks. An air duct A, an air duct B, an air duct C, an air duct D and an air duct E are installed on the spray head B A, the spray head C, the spray head D and the spray head E in sequence. The air duct A, the air duct B, the air duct C, the air duct D and the air duct E are used for injecting airflow downwards or slantly downwards. The mechanical-airflow combination disturbance chemical application system can be applied to a spray rod type spraying machine, deposition distribution uniformity of fogdrops in the dense crop canopy of rice and wheat and the like can be improved effectively, and uniform chemical application to the whole plant is achieved.
Owner:JIANGSU UNIV
Array type light evening device with annulus photon screen and manufacturing method thereof
InactiveCN102023387AAchieve refocusUniformity achievedDiffraction gratingsPhotomechanical exposure apparatusGaussian beamWavefront
The invention discloses an array type light evening device with an annulus photon screen and a manufacturing method thereof. The array type light evening device with the annulus photon screen is an annulus photon screen array which is manufactured on a transparent medium, and the annulus photon screen is used as a basic unit of the array. The annulus photon screen is formed by a plurality of homocentric diffractive hole annuluses and a plurality of homocentric etching ring annuluses, which are alternately nested, and the diffractive hole annulus is the closest to the center of the annulus photon screen; the width of the diffractive hole annulus and the width of the etching ring annulus are gradually decreased respectively from the center of the annulus photon screen to outside, the width of the diffractive hole annulus is equal to the width of the etching ring annulus which is adjacent to the diffractive hole annulus far from the central direction of the annulus photon screen, and the size of each light penetrating hole is the same as the width of the corresponding etching phase annulus. By using the invention, gauss beams and other wavefront uneven laser beams are transformed into wavefront diffractive beams which are approximate planes.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI
Advertisement crowd orientation method and device
PendingCN110348907AAchieve diffusionReduce complexityCharacter and pattern recognitionMarketingUser inputCrowds
The invention discloses an advertisement crowd orientation method and device, belongs to the technical field of data processing. The method and the device are used for considering algorithm complexityand accuracy while realizing label user diffusion during advertisement crowd extraction. The method comprises the following steps: acquiring a target user label which is input by a user and is used for extracting advertisement crowds; respectively determining similarity values between the target user label and other user labels in each pre-acquired user label for describing user characteristics;according to the similarity value between the target user label and other user labels, determining K similar user labels with the maximum similarity with the target user label, and K being a natural number; and taking the user containing each similar user label as the targeted advertisement crowd, or taking the user containing each similar user label and the user containing the target user label as the targeted advertisement crowd.
Owner:SHENZHEN TENCENT COMP SYST CO LTD
Similarity-based evaluation method, apparatus and device, and readable storage medium
ActiveCN110335139AAchieve diffusionImprove accuracyFinanceCharacter and pattern recognitionFirst relationshipAssessment methods
The invention discloses a similarity-based evaluation method. The method comprises the steps of obtaining first information data of a to-be-evaluated object, second information data of an evaluated first object, a weight value corresponding to associated information data and third information data of an evaluated second object; calculating a first relationship similarity between the to-be-evaluated object and an evaluated second object and a second relationship similarity between the evaluated first object and the evaluated second object according to the weight values corresponding to the first information data, the second information data, the third information data and the associated information data; and according to the first relationship similarity and the second relationship similarity, calculating a third relationship similarity between the to-be-evaluated object and the evaluated first object by using a SimRank algorithm. The invention further discloses a similarity-based evaluation device and equipment and a readable storage medium. According to the invention, gang financial fraud can be effectively assessed based on the similarity of the information data, and the accuracyof credit assessment is improved.
Owner:WEBANK (CHINA)
Method for manufacturing array phase zone photon sieve dodging device
InactiveCN102681170AAchieve refocusUniformity achievedDiffraction gratingsPhotomechanical exposure apparatusDirect writingOptical glass
The invention discloses a method for manufacturing an array phase zone photon sieve dodging device, which is implemented by using a large-scale integrated circuit technology and a plane photoetching technology. The method comprises the following steps of: manufacturing a master plate by using an electron beam direct-writing method; transferring patterns of the master plate onto optical glass coated with photoresist with a contact-type photoetching method; and etching the patterns transferred onto the photoresist of the optical glass into the optical glass by using an inductive coupling plasma etching technology. The method disclosed by the invention can be used to realize wavefront flattening on a Gaussian light beam and other uneven non-planar wavefront light beams, realize dodging of the light beams and also realize approximately-planar light beams.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI
Preparation method of N type back knot solar cell
ActiveCN103681971AImprove photoelectric conversion efficiencyReduce manufacturing costFinal product manufactureSemiconductor/solid-state device manufacturingSingle crystalBiological activation
The invention discloses a preparation method of an N type back knot solar cell. The preparation method comprises the steps of: performing iron injection on a light receiving face of an N type monocrystal silicon wafer, performing high-temperature oxidation activation on the silicon wafer after the ion injection, performing boron diffusion on the shady face of the silicon wafer after the high-temperature oxidation activation, forming a passivation layer on the shady face of the silicon wafer and forming an anti-reflection film on the light receiving face of the silicon wafer, and forming electrodes of the solar cell. The preparation method of the N type back knot solar cell can improve photoelectric conversion efficiency of the solar cell.
Owner:CSI CELLS CO LTD
Array photon sieve light evener and manufacturing method thereof
InactiveCN102023388AAchieve refocusUniformity achievedDiffraction gratingsPhotomechanical exposure apparatusWavefrontGaussian beam
The invention discloses an array photon sieve light evener which is an array of photon sieves, wherein the array is manufactured on a transparent medium according to the actual needs, and the size of the array is given out according to the actual needs. The photon sieves are a large number of diffractive optical elements with light-transmitting micropores different in radius, wherein the diffractive optical elements are manufactured on a Fresnel wave band ring, and the photon sieves are basic units of the array photon sieve light evener; and other parts are light-proof. The array is in the structure with repeated photon sieves. The invention simultaneously discloses a method for manufacturing the array photon sieve light evener. The array photon sieve light evener realizes wavefront flattening for gauss light beams and other uneven non-planar wavefront light beams, the light evening of the light beams, and wavefront light beams approaching to the plane. The light beams are widely applied to light path systems.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI
Ball milling electric field pressure-assisted sintering remanufacturing method and device of titanium chips
InactiveCN106694891AAchieve full densificationIsotropicAnalysis by thermal excitationRecycling and recovery technologiesBall mill
The invention provides a ball milling electric field pressure-assisted sintering remanufacturing method and device of titanium chips. The ball milling electric field pressure-assisted sintering remanufacturing method comprises the steps of step (1), recycling and pretreatment of Ti chips; step (2) BM (ball milling) processing of Ti chips; and step (3) FAPAS (field-activated and pressure-assisted sintering) curing of BM-Ti chips. According to the ball milling electric field pressure-assisted sintering remanufacturing method, the BM technology and the FAPAS technology are combined, remanufacturing of waste chips is successfully implemented from second-grade Ti (ASTM Grade 2) chips, and a large-size blocky Ti material is prepared; through the BM-FAPAS remanufacturing technology, an ultrafine structure is prepared, oxide dispersion is achieved, and metallurgical defects are inhibited; the strength of the remanufactured Ti material is superior to that of a second-grade Ti commercial bar material on the similar oxygen content level, and the remanufactured Ti material has good isotropy; and the BM-FAPAS remanufacturing technology avoids high-temperature melting, is a low-cost, efficient and clean metal resource recycling treatment technology, and is particularly applicable to circulation and reutilization of high-smelting cost Ti resource.
Owner:SHANGHAI DIANJI UNIV
Method for publishing service subscription relationship of intelligent substation based on LLDP
ActiveCN111740911AReduce configuration workloadImprove efficiencyPower network operation systems integrationCircuit arrangementsNetwork managementSystems engineering
The invention provides a method for publishing a service subscription relationship of an intelligent substation based on LLDP. The method comprises the following steps: any switch in the process layernetwork receives IED equipment data subscription relationship information issued by the network management system, combines the accessed IED terminal equipment information dynamically learned by theswitch with the inter-switch connection information obtained according to the LLDP connection relationship; and the switch dynamically generates a multicast forwarding table and publishes the multicast subscription relationship through the LLDP extension protocol type, and other switches on the network dynamically learn the multicast subscription relationship through the LLDP and guide the processlayer network data flow to forward according to the learned multicast table. According to the method, the service subscription relationship of the intelligent substation can be quickly and automatically published, the efficiency of engineering debugging construction can be effectively improved, potential safety hazards caused by wiring and configuration errors are eliminated, and safe operation of a power system is guaranteed.
Owner:NARI TECH CO LTD +1
Yield anchor cable spherical rotating and aligning device
InactiveCN102877871AAvoid high prestress pull through phenomenonHigh strengthAnchoring boltsTunnel wallSpherical shaped
The invention discloses a yield anchor cable spherical rotating and aligning device which is characterized by comprising a semi-spherical tray, an anchorage device ring, an anchorage device clamping sheet and a ball center roller. The semi-spherical tray comprises a tray main body which is approximate to a hollow semi-spherical shape; an annular flat bottom face which is in contact with a tunnel wall surface is arranged on the rim of the tray main body; the wall thickness of the tray main body is gradually increased from the edge to the center; a spherical groove is arranged at the center of the tray main body; the ball center roller is arranged inside the spherical groove, and rotates inside the spherical groove; the ball center roller is provided with a columnar axis hole; the anchorage device ring is located at the outer side of the center of the tray main body; the anchorage device ring is in contact with the tray main body, and the inner port part of the anchorage device ring can adapt to the outer wall face of the tray main body, so that the anchorage device ring can move in a sliding manner; and the anchorage device clamping sheet is matched with the outer end opening of the anchorage device ring, so that an anchor cable is fixedly arranged on the anchorage device ring by passing through the axis hole of the ball center roller and the inner ring opening of the anchorage device ring. By utilizing the yield anchor cable spherical rotating and aligning device provided by the invention, the anchor cable support with different mounting angles under high-strain stress can be solved.
Owner:SHANDONG UNIV OF SCI & TECH
Matrix equal spacing extension device
ActiveCN102423862AGuaranteed Interval AccuracyAchieve diffusionMetal working apparatusEngineeringPulley
The invention relates to a matrix spacing adjusting mechanism for adjusting the spacing of a plurality of lines of work pieces, which belongs to the field of mechanically automatic equipment. The mechanism comprises a power source, a transmission component and a carriage. Two gears and a belt pulley are respectively arranged on shafts which form a 90-degree angle, and are provided with synchronous belts. Four guide rails are lined in an X-axis direction and two guide rails are lined in a Y-axis direction, and four sliders are arranged on each guide rail. The sliders on the edge of the X-axis and the Y-axis guide rails are provided with guide pipes or belt clamps. The belt clamps are arranged on the synchronous cog belts. A small belt clamp is arranged below each slider. Every four slidersare connected by a belt, and the length of the belt decides the adjustable spacing among all the work pieces. Each guide pipe comprises a sleeve, a sleeve cover and a guide rod. A part in which each guide rod and each sleeve are contacted is in a drum type, so that the flexibility is high. The mechanism can adjust the spacing among a plurality of lines of work pieces, a system is a single power source, the use is stable and reliable, the precision requirement on work piece positioning can be met, the structure is reasonable, and the control is simple and feasible.
Owner:BEIJING UNIV OF TECH
Sunlight-type LED lamp tube lamp cover
InactiveCN103629620AAchieve diffusionUniform light outputPoint-like light sourceGlobesEngineeringThin line
The invention relates to a sunlight-type LED lamp tube lamp cover which is formed by transparent materials. The section is of an arc structure. Buckling feet for locating are symmetrically formed at the two edges. The lamp cover is characterized in that the outer surface of the lamp cover is smooth, intensive-arrayed thin lines are formed on the inner surface of the lamp cover, the sections of the thin lines are of an arc down-concave structure, concave lens light dispersing mirror surfaces are formed, the thin line arc height is smaller than 0.3mm, and the radius is smaller than 0.6mm. The intensive-arrayed down-concave arc thin lines are formed on the inner surface of the lamp cover, the concave lens light dispersing mirror surfaces are formed, especially the asymmetric down-concave thin lines achieve light dispersing, light-emitting angles are dispersed, lamp cover surface light emitting is even, the shortcoming of LED light source dazzling is overcome, the lamp cover is of a semi-arc-similar or a semi-elliptic-arc-similar structure, and accordingly light intensity on the two sides is improved.
Owner:厦门晖朗光电有限公司
Optical fiber of coupling multilayer rare earth blending ring-shaped fiber core with single-mold fiber core
InactiveCN101764343ALarge effective mode field areaImprove heat resistanceActive medium shape and constructionFiberOptical fiber amplifiers
The invention relates to an optical fiber of coupling a multilayer rare earth blending ring-shaped fiber core with a single-mold fiber core, belonging to high-power optical fiber amplifiers, lasers and special fibers; a rare earth blending ion core area (1) is arranged at the center of the optical fiber, a first silicon ring core (21), a first rare earth blending ion ring core (41), ...(N+1)th silicon ring core (2, N+1), and a coating layer (3) are sequentially arranged from inwards to outwards, wherein, N is more than or equal to 2 and is less than or equal to 50; the refractive indexes of the rare earth blending ion core area, the first rare earth blending ion ring core, ...and the Nth rare earth blending ion ring core (4N) are equal, the refractive indexes of the first silicon ring core, ...and the (N+1)th silicon ring core are equal, the refractive indexes of the first silicon ring core (21), ...and the (N+1)th silicon ring core are lower than the refractive indexes of the rare earth blending ion core area, the first rare earth blending ion ring core, ...and the Nth rare earth blending ion ring core; the refractive index of the coating layer is lower than the refractive indexes of the first silicon ring core, ...and the (N+1)th silicon ring core (2, N+1), the manufacturing difficulty of the optical fiber is reduced, and large and effective mold area of the optical fiber is realized.
Owner:BEIJING JIAOTONG UNIV
Loudspeaker and loudspeaker system
ActiveCN106068005AGuaranteed Stereo EffectAchieve diffusionElectrical transducersSound waveEngineering
The invention discloses a loudspeaker and a loudspeaker system. First sound circulation passageways and second sound circulation passageways are respectively arranged on the two sides of an irradiator. The first sound circulation passageways extend to the edge of the irradiator from the position of the radiator that is directly facing a first sound producing unit through gradually getting away from the first sound producing unit in the X-axis direction. The second sound circulation passageways extend to the edge of the irradiator from the position of the radiator that is directly facing a second sound producing unit through gradually getting away from the second sound producing unit in the X-axis direction. According to the technical scheme of the loudspeaker, sound waves emitted from the first sound producing unit are radiated to the outside through a plurality of first sound circulation passageways on the radiator. Meanwhile, sound waves emitted from the second sound producing unit are radiated to the outside through a plurality of second sound circulation passageways on the radiator. Therefore, the 360-degree diffusion of the sound fields of the two sound producing units can be realized. Meanwhile, the omni-directional property of the sound field of a tweeter unit is improved, so that the loudspeaker can be made smaller. Moreover, the stereophonic effect of the loudspeaker can be simultaneously ensured.
Owner:LITTLE BIRD CO LTD
Thin film slitting device based on macromolecule material
ActiveCN108910568AAchieve diffusionImplement position swapMetal working apparatusArticle deliveryMechanical engineering
The invention discloses a thin film slitting device based on a macromolecule material. The thin film slitting device comprises an unwinding roll, an adjustable slitting mechanism and a winding roll, wherein the unwinding roll and the winding roll are respectively and rotationally connected with a bracket; the adjustable slitting mechanism is arranged between the unwinding roll and the winding roll, and is connected with electric telescopic rods which are symmetrically arranged at front side and back side; the adjustable slitting mechanism comprises a motor, fixed plates, slitting knives and aplurality of abutting plates; a rotary shaft is arranged between the two fixed plates; the multiple butting plates are arranged at the outer side of the rotary shaft along the circumference direction;the outer side of each abutting plate is clamped with the corresponding slitting knife. The thin film slitting device has the advantages that the design is novel; the adjusting rod is driven by an adjusting button to rotate, and drives a threaded sleeve cylinder to drive a sleeve ring to do face-to-face movement or opposite movement; in the face-to-face movement process of the sleeve ring, the abutting plates can be diffused; in the opposite movement process, the abutting plates can be approached, so as to adjust and replace the positions of the slitting knives, adjust the distance between the multiple slitting knives, and meet the different slitting width requirements.
Owner:CHONGQING EFAN THINREX PHOTOELECTRIC TECH CO LTD
Anti-deformation pressure resistant temperature-uniforming plate
ActiveCN105280583AImprove heat transfer coefficientIncrease the heat exchange areaSemiconductor/solid-state device detailsSolid-state devicesChannel networkEngineering
Owner:安徽瀚程机械制造有限公司
Homogenizer of array partial phase zone photon sieve and manufacturing method thereof
ActiveCN102023389AAchieve refocusUniformity achievedDiffraction gratingsPhotomechanical exposure apparatusGaussian beamLight beam
The invention discloses a homogenizer of an array partial phase zone photon sieve and a manufacturing method thereof. The homogenizer of the array partial phase zone photon sieve is a partial phase zone photon sieve array manufactured on a transparent medium according to actual needs, and the size of the array is determined according to the actual needs. The manufacturing method of the partial phase zone photon sieve comprises the following steps of: firstly manufacturing a common photon sieve on the transparent medium; and then etching round rings at other Fresnel phase zones to form a phase-type Fresnel phase zone, wherein the phase of the phase zone is phi. Therefore, transparent parts are available on odd phase zones and even phase zones of a wave zone plate, which are transparent holes of odd rings and etching phase zones of even rings, or the transparent holes of the even rings and the etching phase zones of the odd rings, respectively. In the etching phase zones, the parts occupied by the round holes of the photon sieve are not etched, and the phase is still 0. By utilizing the invention, the wave front flat topping of Gaussian beams and other nonuniform and nonplanar wave front beams are realized, the homogenization of the beams is realized, and the wave front beam approximate to a plane is realized.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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