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3300results about How to "Achieve conversion" patented technology
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SYNTAX automatic scoring method based on coronary angiogram image segmentation
InactiveCN104867147AReduce workloadShorten the timeImage enhancementImage analysisUltrasound attenuationCoronary arterial tree
An SYNTAX automatic scoring method based on coronary angiogram image segmentation segments and extracts a coronary arterial tree and central line based on coronary angiogram images of a patient and employs a blood vessel side branch separation, reconnection and K main curve method, and generates a binary image of the coronary arterial tree The blood vessel segment numbers are automatically matched based on the SYNTAX scoring standard by employing a central line direction tracking method, and coronary artery pathological changes and adverse characteristics are identified and scored by selecting a coronary left (right) advantageous type in combination with the width attenuation degree of the cross section of the blood vessel and the curvature change of the center line, and the scores are calculated to give a reasonable score result to allow a doctor to employ optimal operation scheme. The method overcomes the problems of great computation amount, tedious calculating steps, complex scoring standard and long calculating time of artificial calculating SYNTAX scoring in conventional clinics.
Owner:BEIJING UNIV OF TECH
Protocol conversion method and device
The invention provides a protocol conversion method and device. The protocol conversion device at least comprises a first communication interface and a second communication interface. The protocol conversion method comprises the following steps: binding corresponding protocol types for the communication interfaces, and selecting corresponding decoding and encoding rules from a preset rule base; receiving source communication protocol data from a first communication interface, judging the protocol type of the source communication protocol data, and decoding the source communication protocol data to generate decoded data; and encoding the decoded data to generate target communication data, and sending out the target communication data through a second communication interface. The method and the device in the invention have the advantages that the types of source communication protocols and target communication protocols are unrestricted, thus realizing data conversion for a plurality of the existing standard protocols and manufacturer custom protocols, and solving the problems such as single product function and worse reusability as a result that only specific protocols can be converted in the prior art.
Owner:BEIJING TELLHOW INTELLIGENT ENG CO LTD
Prepn process of selenium-rich edible fungus with activated selenium ore as selenium source
InactiveCN1888048AAchieve transformation and enrichmentGood economic benefitsFungiHorticultureFungal myceliumAqueous solution
The preparation process of selenium-rich edible fungus with activated selenium ore as selenium source belongs to the field of biological selenium resource converting technology. Natural selenium ore as the selenium source is crushed, activated and water extracted; the selenium containing water solution is used in compounding culture medium; and edible fungus is cultured to realize selenium conversion and enrichment, with the selenium-enriching cultured mycelium containing organic selenium in 50-600 mg / kg. The present invention realizes the conversion and enrichment of organic selenium while producing edible fungus with rich active polysaccharide content.
Owner:JIANGNAN UNIV +1
A highly automated intelligent contract formal verification system and method
ActiveCN108985073ASave time and costShorten the verification cycleFinancePlatform integrity maintainanceSpecification documentAutomaticity
The invention discloses a highly automated intelligent contract formal verification system and method. The method includes the following steps: step 001, converting an intelligent contract function requirement description document into an intelligent contract function requirement specification document described in a non-natural language, wherein the content of intelligent contract function requirement specification document includes target contract function specification description and security attribute description; step 002, creating a formal validation rule model library; step 003, automatically modeling the contract source code and / or bytecode by an automated modeling tool; step 004, parsing the abstract syntax tree generated in step 003, and allocating memory addresses for constantsand variables in the code; step 005, performing formal proof. The invention is adapted to program codes written in a plurality of high-level programming languages and also adapted to a plurality of formal languages, and simultaneously provides two automatic modeling modes of source code modeling and bytecode modeling, so that modeling can be carried out according to different modeling requirements of users, and the verification efficiency is further improved.
Owner:成都链安科技有限公司
An asset cross-chain transaction method between block chains
ActiveCN109685489AAutomatic Security TransferAutomated Safe TransactionsFinanceProtocol authorisationDigital currencyFinancial transaction
The invention discloses an asset cross-chain transaction method between block chains. Cross-chain asset exchange is realized through an asset two-way lock and a cross-chain contract verification transaction; The invention provides a decentralized point-to-point cross-chain transaction scheme. Transfer between the digital currency and the digital currency is realized between the public chain and the digital currency, transfer between the digital currency or the physical asset and the digital currency is realized between the alliance chain and the public chain, and exchange and transfer betweenthe physical asset and the physical asset are realized between the alliance chain and the alliance chain. Therefore, the cross-chain transaction method is suitable for various common block chain typesand realizes conversion and transaction of various assets.
Owner:HANGZHOU YUNXIANG NETWORK TECH
Heavy oil lightening method and device
InactiveCN102115675AAchieve conversionEfficient conversionThermal non-catalytic crackingEnergy inputHeat carrierCombustion
The invention relates to a heavy oil lightening method and technique. The method comprises steps as follows: raw oil is introduced into a thermal cracking reactor through a feed system, and mixed with a high-temperature solid heat carrier from a combustion (gasifying) reactor, so that the raw oil is subjected to fluidizing heat exchange with the solid heat carrier and carries out thermal cracking reaction on the surface of the solid heat carrier; the cracking gas generated by the thermal cracking reaction and a light component product are subjected to steam stripping by fluidizing medium gas and enter a subsequent absorption and stabilization system and a purification and separation system, heavy coke (petroleum coke) is attached to the surface of the solid heat carrier and enters the combustion (gasifying) reactor via a material returning valve, and an oxidizing (gasifying) and fluidizing gas is introduced to realize combustion (gasifying) reaction in the fluidization elevation process of the petroleum coke; and after the reaction product (fume or gasified gas) and the solid heat carrier are separated by a gas-solid separator, the fume (gasified gas) is led into a waste heat recovery system and a gas purification system, the high-temperature solid heat carrier is distributed by a distribution valve and respectively enters the thermal cracking reactor and the combustion (gasifying) reactor for cyclic use, and the collected fly ash can be used after further processing, thereby complete high-value conversion and use of the heavy oil.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
An intelligent protocol conversion device and method based on embedded QNX operating system
InactiveCN101267448AReduce manual configurationImplement automatic conversionElectric signal transmission systemsTransmissionCommunications systemOperational system
The invention provides a device and a method for intelligent terms conversion. The device comprises a DSP central processing chip, a memory module, a display and keyboard operation module and an uplink-downlink communication module, wherein the memory module, the display and keyboard operation module and the uplink-downlink communication module are connected with the DSP central processing modulerespectively, a front-end computer communication module is connected with a front-end computer through a RS-232 bus, a RS-232 communication module is connected with a plurality of sub-stations RTU bya serial expansion circuit, a term converter is arranged between the RTU and the front-end compute of a power communication system, the uploaded communication protocol of the sub-stations RTU are intelligently recognized by a fuzzy expert system, the format of the recognized terms are converted into a unified terms format, uploaded to the front-end computer, and uploaded to each level of workstation by the front-end computer. The invention has the advantages that operators can realize automatic recognition and conversion of terms of interconnected two parties by the device without knowing theterms types of the interconnected two parties, thus avoiding the error possibly brought by manual operation.
Owner:NORTHEASTERN UNIV +2
Object-oriented remote sensing image coastline extraction method
InactiveCN102013015AImprove extraction accuracyImprove accuracyCharacter and pattern recognitionClassification treatmentComputer science
The invention discloses an object-oriented remote sensing image coastline extraction method which belongs to the field of full automatic remote sensing image coastline extraction. The steps are as follows: carrying out filtering treatment on a remote sensing image; selecting the segmentation algorithm to segment the remote sensing image; utilizing sample points for classifying the remote sensing image after segmentation; utilizing the seed growth method for extracting a seawater region; and finally utilizing the corresponding judgment criterion to extract a coastline. By utilizing the method disclosed by the invention, the accuracy of the existing coastline extraction algorithm can be improved, the correct rate of seawater extraction after segmentation and classification treatment throughthe object-oriented method is improved and the accuracy of the coastline extraction is ensured. As the coastline changes frequently, the method can provide convenience for maintenance and updating ofcoastline information of all levels of national fundamental geographic information databases.
Owner:NANJING UNIV
Multifunctional and portable solar charger
InactiveUS20050162121A1Convenient and practical to use solar energyNovel structureSecondary cells charging/dischargingElectric powerLow voltageElectrical devices
The present invention relates to a multifunctional and portable solar charger, more particularly, to a portable solar charger which combines the functions of charging, illumination and power supply together in order to perform effectively transform between a low voltage and a high voltage and conversion between chemical energy and electrical energy, when a storage battery of the charger is charged with the electrical energy, the electrical energy can be transferred to a mobile phone or its battery and other mini-type electrical apparatus such as digital camera, portable computer and portable CD player, in addition, the charger can be connected to an alternating current (AC) power supply.
Owner:CHAN KING KWONG
Method and device for desalting sea water and generating electricity by utilizing tidal energy drive
ActiveCN102022251ARealize comprehensive utilizationAchieve conversionGeneral water supply conservationSeawater treatmentWater dischargeWater turbine
The invention relates to a method and device for desalting sea water and generating electricity by utilizing tidal energy drive. The high sea water in the sea when in rising tide is utilized to impact a water turbine to rotate in the process of flowing into an impounding reservoir, or the high sea water in the impounding reservoir when in ebbing is utilized to impact the water turbine to rotate in the process of flowing into the sea; the water turbine drives a high-pressure pump to operate to generate high-pressure water which is desalted through a reverse osmosis membrane module; the high-pressure concentrated sea water discharged from the reverse osmosis membrane module impacts a turbo machine to rotate; the turbo machine drives a generator to rotate to generate electric energy, thus realizing the comprehensive utilization and conversion of the tide energy; the effluents in the process of energy utilization and conversion do not cause pollution, are clean and environmental-friendly;the system does not need additionally provided external power, and is low in operation cost; and the tide energy is a renewable energy source, and has the advantages of sustainable development, better social benefits and application value.
Owner:GUANGDONG OCEAN UNIVERSITY
Catalyst used for methanation of carbon dioxide, preparation method therefor and applications thereof
ActiveCN104148065ASmall particle sizeNarrow distributionHydrocarbon from carbon oxidesMetal/metal-oxides/metal-hydroxide catalystsElectrolysisMethanation
The invention provides a catalyst used for methanation of carbon dioxide, a preparation method therefor and applications thereof. The catalyst employs precious metal Ru or Rh as a main catalytic activity component, employs one or more selected from elements of the I and II main groups and the II, III and VII subgroups as auxiliary agents, and employs one or more selected from SiO2, TiO2, Al2O3, CeO2 and ZrO2 as carriers. The above catalyst is used in graininess or the carriers, the auxiliary agents and the activity component are subjected to coating (wall loading) on a whole structural catalyst and metal honeycombs. The catalyst has characteristics of high activity and selectivity and wide temperature and pressure operation windows. The catalyst can be used for hydrogenation methanation removal of CO2 in a space station, then generated H2O is subjected to electrolysis, and circulation supply of oxygen is achieved. The catalyst also can be used for processes of other CO2 conversion utilization of coal-made natural gases and process gases and the like and new energy development and energy saving and emission reduction are achieved.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Optical touch screen, optical touch screen light source and touch pen
ActiveCN101630213AAchieve conversionPromote conversionInput/output processes for data processingTouchpadTouchscreen
Owner:李甲明
A pesticide preparation sprayer
InactiveCN102266829AGuaranteed on demandReduce wasteLiquid spraying apparatusInsect catchers and killersSprayerRemote control
The invention discloses a pesticide preparation spraying machine. During the process of pesticide spraying solution preparation, the solution is extracted by a water pump and a pesticide pump and volume of the required water and pesticide is measured by a water flow sensor and a pesticide flow sensor, so accuracy of the pesticide spraying solution preparation is improved dramatically. The whole process of the pesticide spraying solution preparation is processed in a preparation box; processes of preparation and spraying are realized through wireless remote control; and personal safety of operators is guaranteed greatly. The arranged pesticide selecting device can select different pesticides and reduce trouble when operators change pesticides. Otherwise, after the finish of spraying pesticides, the machine can automatically finish washing and drying according to requirements of users to save workload of manual cleaning. Finally, the pesticide preparation spraying machine has advantagesof simple structure of complete machine, examining and maintaining convenience, low construction cost and is convenient to operate. The crawler-type drive mode is adopted for the pesticide preparation spraying machine and the machine is adaptive to different working environment.
Owner:SICHUAN AGRI UNIV
Application proxy-based network management system isolation control device
InactiveCN102006307ASolve data exchange problemsIncrease controlData switching networksComputer moduleBus interface
The invention provides an application proxy-based network management system isolation control device, which comprises an intranet processing unit, an extranet processing unit and a data exchange unit, wherein the intranet processing unit comprises an isolation exchange control module and an application proxy module; the extranet processing unit comprises an isolation exchange control module and an application proxy module; and the data exchange unit consists of a special bus interface and a bus switch and is based on an non-(internet protocol) IP protocol, the special data bus exchanges the data between the intranet processing unit and the extranet processing unit, and prevents attack from the leaks of the transmission control protocol (TCP) / IP. In the invention, the network attack behavior aiming at a TCP stack can be prevented by adopting a specific non-IP protocol and an internal isolation exchange interface.
Owner:NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
Touch screen for mobile phone
InactiveCN101237636ADoes not produce the effect of the signal inputEasy to knowRadio/inductive link selection arrangementsTelephone sets with user guidance/featuresTouchscreenMobile phone
The invention discloses a touch screen for a handset and is characterized in that: the handset provides the touch screen with two touch screen working states of an effective input state and a locking state; the touch screen is provided with a locking signal input area, touch signals received in the area are used to trigger the conversion of the touch screen between the two working states. Preferably, the realization mode of the locking state of the touch screen is concretely that: a central processor of the handset processes touch signals outside the locking signal input area as invalid signals. Compared with the prior art, the touch screen for a handset provided by the invention has two working states: the effective input state and the locking state. The conversion of the touch screen between the two working states can be triggered through the touch signals received by the locking signal input area provided on the touch screen. When the touch screen is in locking state, any touch signal outside the locking signal input area can not produce the effect of signal input.
Owner:HAIER GRP CORP +1
Potential customer mining and recommending method
ActiveCN110222272AJudging interestHigh precisionDigital data information retrievalCharacter and pattern recognitionFeature vectorSocial platform
The invention provides a potential customer mining and recommending method, which comprises the following steps of obtaining personal information and social activity information of a user from a social platform, fusing the personal information and the social activity information with locally stored user shopping records, and carrying out data cleaning and screening to obtain data for training andtesting a potential customer classification model; constructing a user portrait according to the personal information, the social record and the shopping record of the user, processing the social record and the shopping record of the user into a feature vector form which can be used by a model, then training a user interest prediction model, and dividing the users into potential customers and passers-by; and finally, identifying and providing more targeted commodity pages for the potential customers according to the interests of the potential customers. According to the method, the interest ofthe user can be judged while the user is accurately classified; corresponding products are displayed or precise advertisement putting is implemented according to the interest judgement of the users,so that conversion of potential customers is realized; targeted recommendation can also be provided for old customers, and customer stickiness is improved.
Owner:GUANGDONG UNIV OF TECH
Energy sources regeneration of urban domestic garbage and non-waste comprehensive utilization processing technique
InactiveCN101433904AEffective generationAchieve conversionWaste processingSolid waste disposalFiltrationFuel oil
The invention relates to a manufacturing technique for energy regeneration and non-waste comprehensive utilization of municipal domestic waste, which is characterized by comprising the steps of waste classification, pretreatment and treatment of nonmetallic inorganic substances, schizolysis, filtration and reforming of organic substances, synthesis of fuel oil and treatment of organic substance byproducts. The manufacturing technique completely treats waste, has no secondary pollution during the whole treatment, and really realizes complete conversion and utilization of the waste. When the technology is used for treating organic substance waste and so on, including organic substance parts of the municipal domestic waste and various animal and plant waste, not only the environmental problem caused by the municipal domestic waste and the waste problem of the waste can be solved but also energy and slow release fertilizer which returns to earth can be efficiently generated, so that green circulation of renewable energy resources is realized. The applied proposal has reasonable energy consumption in the whole process, has no pollution, has controllable products, high output value and stable and reliable sources of raw materials, and realizes sustainable development.
Owner:深圳开普蓝生能源环保有限公司
Unmanned testing vehicle platform for automatic driving testing site, and method
ActiveCN109187041AAchieve changeChanges to achieve conversion between different modelsVehicle testingControl systemFeedback control
The invention discloses an unmanned vehicle general platform for automatic driving testing, and a method. The unmanned vehicle general platform comprises a vehicle body shape transformation system which comprises a chassis; a telescopic device is mounted on the chassis, the telescopic device changes the size of a vehicle body through telescopic deformation, and different quick assembly simulationshells are matched to simulate different vehicle models and vehicles; a feedback control system is further mounted on the chassis; the feedback control system comprises a central control device whichis connected to a motor, a braking device and a steering device; and the central control device is further connected to a vehicle sensor measuring unit, and the motion state of a vehicle is obtained through the vehicle sensor measuring unit to decide and control various operation behaviors of the testing vehicle. One testing vehicle can simulate the various vehicles (such as cars, off-road vehicles and trucks), the perceive difficulty of the tested vehicles is increased, and the testing cost is lowered.
Owner:SHANDONG ACAD OF SCI INST OF AUTOMATION +1
Voice converting method based on deep learning
ActiveCN107545903AImprove the voice conversion effectSave computing resourcesSpeech analysisOffline learningFeature extraction
The invention discloses a voice converting method based on deep learning, and belongs to the technical field of voice signal processing. According to the invention, the method includes the following steps: configuring a voice encoding and decoding device AHOcoder as a feature extraction terminal and a voice synthesis terminal, training voice features by using the deep leaning method to separatelyobtain deep features of a source speaker and a target speaker, also obtaining the capability of decoding the deep features to original features, mapping the source speaker and the target speaker by using a BP neural network, thus realizing voice conversion. According to the invention, the method stitches the original features of voice, the combined feature parameters obtained from stitching are deemed to include the dynamic features of the voice features of the speaker, the training of the deep neural network is accelerated by pre-training the deep autoencoders, and by converting the deep features, the method herein obtains quality converted voice even when less voice materials are trained. The method also supports offline learning, and saves computing resources and memory of terminal devices.
Owner:NANJING UNIV OF POSTS & TELECOMM
Protocol conversion gateway
The invention provides a protocol conversion gateway which analyzes the problems existing in the development of an industrial control network protocol and a TCP / IP protocol by analyzing an industrial control network and Ethernet, researches the problems involved in the protocol conversion, provides an industrial control network protocol-IPv6 conversion mechanism and successfully realizes data exchange between the industrial control network and the Ethernet.
Owner:SHANGHAI DIANJI UNIV
Multi-crack damage identification apparatus and method for cantilever flexible beam
InactiveCN104007175AEasy to installEasy to fixAnalysing solids using sonic/ultrasonic/infrasonic wavesFiberMeasurement point
The invention discloses a multi-crack damage identification apparatus and method for a cantilever flexible beam. The apparatus comprises a flexible beam, a mechanical clamping device, a detection device, a vibration exciter, a signal generator, a power amplifier, a fiber Bragg grating demodulator and a computer. One end of the flexible beam with multiple cracks is fixed through the mechanical clamping device; a multi-channel FBG optical fiber sensor group is adhered on the flexible beam and is evenly distributed along the length direction of the flexible beam; a signal generated by the signal generator is amplified by the power amplifier and then enters the vibration exciter; the vibration exciter excites low-order mode vibration of the flexible beam; the vibration results in curvature changes at measurement points of each sensor of the beam; the sensors input the curvature changes into the fiber Bragg grating demodulator in the form of wavelength changes; a demodulated signal enters the computer for modal analysis of the flexible beam, drafting of a modal curvature curve, calculation of damage indexes and establishment of a wavelet neural network identification model; and finally, the purpose of accurate identification of the depth and the location of the cracks of the flexible beam is achieved.
Owner:SOUTH CHINA UNIV OF TECH
Catalyst for preparing alkane by catalytically hydrogenating biological oil
InactiveCN104722329AReduce manufacturing costAlleviate the shortage of petrochemical energyMolecular sieve catalystsLiquid hydrocarbon mixture productionChemistryMolecular sieve
The invention belongs to the field of novel technology of biological energy, and provides a catalyst for preparing alkane by catalytically hydrogenating biological oil. The catalyst is characterized in that 10 to 50 percent of non-precious metal nickel salt, molybdenum salt, cobalt salt and tungsten salt are adopted as active ingredients, a modified molecular sieve / aluminum oxide is used as a catalyst carrier; the catalyst carrier is loaded with one or two and more than two of 10 to 50 percent of molybdenum, nickel, cobalt and tungsten to obtain a catalyst precursor for hydrogenating and refining the biological oil; the precursor is activated for 2 to 6 hours under the hydrogen atmosphere of 300 to 600 DEG C to obtain the catalyst for preparing the alkane by catalytically hydrogenating biological oil. The non-sulphurized biological oil hydrogenation refined catalyst is used for substituting the metal sulfide catalyst and the precious metal catalyst of the hydrogenation deoxidation reaction, the production cost is reduced, and the crisis of the shortage of the fossil energy can be alleviated.
Owner:DALIAN UNIV OF TECH +1
Method of hydro-conversion of polycyclic aromatic hydrocarbons
ActiveCN103666553AAchieve conversionHigh product yieldTreatment with hydrotreatment processesCracking reactionHydrogenation reaction
The invention discloses a method of hydro-conversion of polycyclic aromatic hydrocarbons. The method comprises the following steps: (1), in at least one hydrogenation reaction zone, enabling a material containing polycyclic aromatic hydrocarbons to contact with a hydrogenation catalyst for reaction in the presence of a hydrogen gas to obtain a reaction product with polycyclic aromatic hydrocarbons which are partly hydro-generated and saturated; and (2), in at least one hydrogen-cracking reaction zone, enabling the reaction product with polycyclic aromatic hydrocarbons partly hydro-generated and saturated, which is obtained in the step (1) to contact with a hydrogen-cracking catalyst for reaction in the presence of the hydrogen gas, wherein a conversation rate of the polycyclic aromatic hydrocarbons in the material containing the polycyclic aromatic hydrocarbons is over 40wt% by selecting the hydrogenation catalyst and operation conditions of the hydrogenation reaction zone; and relative yield of a monocyclic hydrogenation product in the products is 4%-80%; and the conversion rate of the polycyclic aromatic hydrocarbons based on the total amount of the polycyclic aromatic hydrocarbons in the material containing the polycyclic aromatic hydrocarbons is over 85wt% by selecting the hydro-cracking catalyst and the operation conditions in the hydrogen-cracking reaction zone, and the relative yield of the monocyclic hydrogen-cracking product in the products is 4%-30%.
Owner:CHINA PETROLEUM & CHEM CORP +1
Coordinate conversion method and apparatus
ActiveCN106530218AAchieve conversionEasy to implementGeometric image transformationMaps/plans/chartsComputer graphics (images)Longitude
The embodiments of the invention provide a coordinate conversion method and apparatus. The method comprises the following steps: mapping pixel coordinates of a point to be converted in a two-dimensional plane graph to be converted to a panoramic sphere to generate a panoramic scene; converting a three-dimensional coordinate system of the panoramic scene into an angle coordinate system; according to a latitude and longitude relative relation between the point to be converted and a center point of the panoramic sphere, calculating a relative angle relation between the point to be converted and the center point of the panoramic sphere; and according to the relative angle relation between the point to be converted and the center point of the panoramic sphere and an inverse conversion relation from the angle coordinate system to the three-dimensional coordinate system, generating three-dimensional coordinate values of the point to be converted so as to complete conversion of the point to be converted from two-dimensional coordinates to three-dimensional coordinates. Through such a mode, any points in space are mapped to the angle coordinate system by use of latitudes and longitudes and heights, and through strong association between a panoramic map and a two-dimensional map, conversion from the two-dimensional coordinates to the three-dimensional coordinates is realized.
Owner:ZHEJIANG UNIVIEW TECH CO LTD
Mixed input method of at least two languages and input method system
ActiveCN101943952AImplement mixed inputAchieve conversionInput/output processes for data processingEngineeringAlgorithm
The invention provides a mixed input method of at least two languages and an input method system. The method comprises the following steps of: receiving a coded character string input by a user; analyzing to obtain a mixed sequence of at least two types of matching sequences according to the received coded character string; searching to obtain a matched candidate item according to the mixed sequence obtained by analysis; and outputting the corresponding on-screen content according to the candidate item, wherein the on-screen content is mixture of at least two languages. Through the method and the system, the mixed candidate item can be obtained by performing mixed analysis and conversion on a segment with a plurality of mixed languages (such as a Chinese segment, an English segment and the like) input by the user so as to realize mixed input, and achieve high input efficiency.
Owner:BEIJING SOGOU TECHNOLOGY DEVELOPMENT CO LTD
Broadband circular polarization high-gain low-profile microstrip slot antenna capable of loading hyper-surface
InactiveCN105870623AWith circular polarization characteristicsHigh gainRadiating elements structural formsAntenna earthingsDielectric substrateCoplanar waveguide
The invention discloses a broadband circular polarization high-gain low-profile micro-strip slot antenna capable of loading a hyper-surface; the broadband circular polarization high-gain low-profile micro-strip slot antenna can realize circular polarization radiation at a frequency band being 5.1-6.3GHz. The broadband circular polarization high-gain low-profile microstrip slot antenna sequencially comprises an upper-layer dielectric substrate (2), a metal copper grounding plate (3) with a seam, and a lower-layer dielectric substrate (4) which are in tight contact from top to bottom, wherein a metal paster set (1) is arranged on the upper surface of the upper-layer dielectric substrate (2); the lower surface of the lower-layer dielectric substrate (4) is provided with a coplanar waveguide feeding structure (5). According to the broadband circular polarization high-gain low-profile microstrip slot antenna, the metal paster set and the upper-layer dielectric substrate form a hyper-surface structure, so that conversion from linear polarized waves to circular polarized waves is realized; the coplanar waveguide feeding structure and the metal copper grounding plate jointly form a coplanar waveguide with a floor for feeding to the antenna from a signal conduction band. A hyper-surface loading technology is adopted based on the micro-band seam antenna, and the coplanar waveguide is utilized for feeding, so that the antenna has the advantages of circular polarization characteristic, high gain and low profile within a broadband, is simple in structure, and is convenient to process.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
Optical touch screen and touch pen
InactiveCN101344827AExtended service lifeDoes not take up spaceInput/output processes for data processingTouch panelLight source
The invention discloses an optical touch screen and a touch pen and relates to a touch screen and a matching touch pen, wherein, the touch screen works by utilizing optical property and determines positions of touch points by determining positions of the related optical points; the touch pen is provided with a light emitting device. The touch pen produces optical points on a touch panel of the optical touch screen, and the optical touch screen responds by taking information of position, action and sparking of the optical points as control signals. The optical touch screen, which is provided with light sources, can also respond to touch information of non-luminous touch parts.
Owner:李兴文
Self-power-generation wireless switch
ActiveCN104407522AGood reliabilitySave wireNon-electrical signal transmission systemsDynamo-electric machinesElectrical batteryElectric energy
The utility model relates to the technical field of switches, and discloses a self-power-generation wireless switch including a micro-generator and a control panel for transmitting outwards a wireless control signal. The micro-generator includes a movably arranged magnet set and a coil set. The coil set includes an iron core and a wire electrically connected to the control panel. The wire winds itself round the iron core to form a coil. The magnet set is disposed on an outer side of the coil set and is arranged to be facing right to a center line of the coil. The magnet set includes a permanent magnet and magnetic plates which are disposed on two opposite sides of the permanent magnet. In the self-power-generation wireless switch, by operating the magnet set to move up and down, mechanical energy is converted into electric energy, and thus an effect of supplying power to the control panel through self-power-generation and transmitting outwards the wireless control signal is achieved. The self-power-generation wireless switch is excellent in reliability and good in safety performance, has the convenience of a remote-control switch, does not needs to use a chemical battery, prevents waste and environment pollution, does not need wire arrangement, and thus the cost is saved and the layout is convenient. In addition, the self-power-generation wireless switch is simple in structure and can be widely promoted and applied to daily life.
Owner:刘远芳
Preparation method of biological diesel oil
InactiveCN1928016AHigh catalytic activityLower activation energyBiofuelsLiquid hydrocarbon mixture productionSolventGlycerol
The present invention relates to biodiesel oil preparing process, and provides one biodiesel oil preparing process with solid acid and solid alkali as catalyst to lower the activating energy and raise the reaction speed. The biodiesel oil preparing process includes the following steps: reacting dried grease with high free fatty acid content, methanol or ethanol, and cosolvent in the molar ratio of 1 to 6-1 to 6.05 in the first fixed bed reactor with solid catalyst A at 60-65 deg.c for about 3 hr; separating the oil phase from others; reacting the oil phase in the second fixed bed reactor with solid catalyst B with methanol or ethanol and cosolvent at 60-65 deg.c for about 3 hr; distilling out methanol or ethanol and cosolvent; separating the biodiesel oil from glycerin phase; and distilling the biodiesel oil phase to obtain biodiesel oil product. The catalyst of the present invention has high catalytic activity and can lower the activating energy and raise the reaction speed.
Owner:张海军
Silicon-based germanium photodetector
The present invention discloses a silicon-based germanium photodetector. The silicon-based germanium photodetector comprises an optical waveguide layer, a silicon oxide layer and a silicon substrate which are sequentially stacked from top to bottom; the optical waveguide layer includes an optical coupling region, a planar optical waveguide region and an optical output region which are distributed sequentially along the propagation direction of optical signals; a coupling grating for receiving the optical signals and guiding the optical signals to the planar optical waveguide region is formed in the coupling region; and the silicon-based germanium photodetector further comprises a germanium layer stacked on the optical output region, a silicon covering layer stacked on the germanium layer, a first electrode formed on the silicon covering layer, and a second electrode formed on the optical output region, wherein the germanium layer receives the optical signals from the optical output region and converts the optical signals into electrical signals. According to the silicon-based germanium photodetector of the invention, the silicon covering layer is adopted, so that bandwidth is greatly improved, the dark current of the device is greatly reduced, and therefore, the comprehensive performance index of the device can be improved, and the requirements of high-speed optical communication and optical interconnection systems can be better satisfied.
Owner:ZTE CORP
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