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1263results about How to "Fix bugs" patented technology
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Electronic evidence preservation system and method based on block chain technology
InactiveCN107888375ASolve pain pointsFix bugsEncryption apparatus with shift registers/memoriesDigital data protectionOriginal dataComputer module
The invention discloses an electronic evidence preservation system and method based on the block chain technology. The preservation system comprises an evidence storage terminal and a block chain network. The evidence storage terminal comprises a hash operation module and an electronic signature module. The electronic data are uploaded to the evidence storage terminal, the evidence storage terminal performs hash operation on the uploaded electronic data to generate unique feature data of a fixed length of original data; then private key signature is performed on the generated data by using theasymmetric encryption technology, and the generated data are sent to the block chain network; and the block chain network performs primary consensus on the uploaded data and packs the uploaded data into blocks, and synchronously sends the blocks to nodes in the network for distributed storage. By establishing an evidence storage alliance by using the block chain technology, the electronic evidence preservation system has the characteristics of digitalized encryption, centralized grading, anti-tampering, data zero loss and so on. Each node in the block chain can preserve a complete block chaindata copy and witness the chain status of the blocks, so that the centralization risk can be effectively avoided.
Owner:SHENZHEN XIEWANG TECH CO LTD
Means for cartilage repair
InactiveUS6179871B1Minimize extraneous effectEvenly spacedPowder deliveryElectrotherapyChondral defectGrowth promoting
A method for repairing a defect in cartilage, comprising the provision of apertures in the cartilage by drilling holes at the base of the cartilage defect, which holes may enter the mesenchymal depot, introducing a porous scaffold material containing a plurality of magnetic particles into the apertures, and subsequently and sequentially injecting magnetically-tagged cartilage growth promoting materials such as various growth factors or chondrocytes into the area of the defect. The magnetically tagged growth promoting material is then drawn into the apertures by magnetic attraction of the magnetic particles contained in the porous scaffold material, either by virtue of the particles being permanently magnetic, or by the imposition of an external magnetic field. The present application claims the biodegradable porous scaffold material containing the plurality of magnetic particles.
Owner:HALPERN ALAN A
Method for highly sensitive quantitative detection of quantum dot fluorescence immunochromatographic assay
ActiveCN102520165ASensitive quantitative detection fastRealize detectionMaterial analysisCritical illnessLinear range
The invention discloses a method for highly sensitive quantitative detection of quantum dot fluorescence immunochromatographic assay. The method includes: building a fluorescence immunochromatographic assay test strip on the basis of optimizing the structure of the test strip and components by the aid of excellent fluorescent characteristics of quantum dots and by means of combining quantum dot fluorescence labeling technology and immunochromatographic assay; detecting fluorescence signal strength of a quantitative belt and a quality control belt by the aid of a fluorescence quantometer and correcting the fluorescence strength of the quantitative belt by the aid of the quality control belt after immunochromatographic assay of the test strip; and further quantitatively detecting analyte according to a standard curve obtained by the fluorescence quantometer. The method is simple, rapid, accurate, low in cost and quite high in sensitivity. Compared with a conventional colloidal gold immunochromatographic assay method, the method has the advantages of fine labeling stability, low non-specificity, high sensitivity, wide linear range and accuracy in quantization. The method is applicable to samples such as blood samples, urine samples, spittle, excrement and the like, and can be applied to detection of critical illness, poison, food safety and the like.
Owner:BEIJING KANGMEI TIANHONG BIOTECH
Method for constructing full-coverage all-direction resource sharing family endowment service system
InactiveCN101795333AFix bugsSolve problemsTelephonic communicationTransmissionInformation processingCall termination
The invention relates to a method for constructing a full-coverage all-direction resource sharing family endowment service system, belonging to the field of the information processing and transmission technology. The invention is technically characterized by mainly comprising a system platform, an Internet website subsystem, a call platform subsystem, an Internet aged-people interaction subsystem, a 120 first-aid supplementary information service subsystem, a home delivery logistics subsystem, home service scheduling subsystem and a call termination subsystem, wherein the call termination subsystem mainly comprises a computer, dual tone multi-frequency signal receiving and transmitting equipment, a telephone terminal and computer software. The family endowment service system constructed with the method can be used as an integrated network service system in the community and further as a digital information platform. The method of the invention is not only a special method applied to a special object but also a general method for constructing an information processing and transmission system serving the public. For example, the method of the invention can be used for constructing the full-coverage all-direction resource sharing life insurance service system.
Owner:贾华
Numerical control machine tool thermal error real-time compensation modeling method based on time series algorithm
InactiveCN102736558AReduce hardware costsReduce complexityProgramme controlComputer controlNumerical controlMathematical model
The invention relates to a numerical control machine tool thermal error real-time compensation modeling method based on a time series algorithm, which belongs to the technical field of precision machining. The method comprises the steps of (1) carrying out data zero mean pretreatment, namely employing an inverted sequence test method and a kurtosis and skewness test method to judge the stationarity and the normality of the data; (2) using an autocorrelation function, a partial correlation function, and the censored results as judgment criteria to carry out the pattern recognition of a thermal error mathematical model; (3) employing a least square estimation method or a long autoregressive residual calculating method to realize the parameter estimation of the thermal error mathematical model; (4) determining the order of the thermal error mathematical model, namely employing a judgment method that combines an AIC order determination criterion, an F test order determination criterion, and a whiteness test order determination criterion to realize the order determination of the thermal error mathematical model; (5) and carrying out integration processing of synthesizing judgment conditions, namely constructing a complete forecasting mathematical model formula. The modeling method provided by the invention has the advantages that less hardware is required, the applicability is wide, and the established model has high prediction precision and reliability.
Owner:上海睿涛信息科技有限公司
Flat panel display and method of controlling picture quality thereof
ActiveUS20080001869A1Fix bugsCathode-ray tube indicatorsNon-linear opticsFlat panel displayComputer science
A flat panel display device includes a display panel having at least one link pixel which has a non-defect area and a panel defect area and where adjacent pixels are linked to each other; a memory which stores a first compensation data for compensating the data which are to be displayed in the panel defect area, a second compensation data for compensating the data of a bordering part between the panel defect area and the non-defect area, and a third compensation data for compensating the data which are to be displayed in the link pixel. The first compensation data is adjusted through at spatial dispersion or temporal dispersion; the data that are to be displayed in a fixed area inclusive of the boundary are adjusted by dispersing the second compensation data to the fixed area inclusive of the boundary; the data that are to be displayed in the link pixel are adjusted to the third compensation data.
Owner:LG DISPLAY CO LTD
Pb-free Sn-based material, wiring conductor, terminal connecting assembly, and Pb-free solder alloy
InactiveUS20070295528A1Suppress oxidationSuppress structureConductive layers on insulating-supportsContact member assembly/disassemblyElectrical conductorMetal
A Pb-free Sn-based material part of a wiring conductor is provided at least at a part of a surface the wiring conductor, and the Sn-based material part includes a base metal doped with a transformation retardant element and an oxidation control element. The transformation retardant element is at least one element selected from a group consisted of Sb, Bi, Cd, In, Ag, Au, Ni, Ti, Zr, and Hf. The oxidation control element is at least one element selected from a group consisted of Ge, P, Zn, Kr, Cr, Mn, Na, V, Si, Al, Li, Mg and Ca. The wiring conductor is reflow processed, such that at least one of the Sn, the transformation retardant element and the oxidation control element is diffused to form an alloy.
Owner:HITACHI CABLE
Multi-keyword plaintext and ciphertext retrieving method and device oriented to cloud storage
InactiveCN103593476AFix bugsAddress riskKey distribution for secure communicationComputer security arrangementsPlaintextComputer hardware
The invention relates to a multi-keyword plaintext and ciphertext retrieving method and device oriented to cloud storage and relates to the field of information safety. The method includes the following steps that firstly, a client terminal performs lexical analysis according to inquiry statements and generates plaintext keywords; secondly, a corresponding user index encryption key is obtained according to a main key bound with the identity of a user, and the plaintext keywords are encrypted with the encryption algorithm of the index encryption key, and ciphertext keywords are generated; thirdly, multi-keyword ciphertext retrieving is performed on a ciphertext index in a cloud storage server according to an inquire tree generated by the client terminal, and retrieved data element information and retrieved relevancy scores undergo inquiry result merging and sequencing; fifthly, inquiry result merging and sequencing are performed in the cloud storage server with the same method; sixthly, a unified sequence result is sent to the client terminal, and an inquiry result is displayed to the user. According to the multi-keyword plaintext and ciphertext retrieving method and device oriented to the cloud storage, a key management scheme which is higher in safety degree is provided, plaintext and ciphertext united retrieving can be supported and multi-keyword retrieving can be provided.
Owner:INST OF INFORMATION ENG CHINESE ACAD OF SCI
Charging device of electronic cigarette and charging method thereof
InactiveUS20160268824A1Avoid defectsSimple and compact structureIndicating/monitoring circuitsTobacco devicesElectronic cigaretteMechanical engineering
This present application relates to a charging device of an electronic cigarette and a charging method thereof. The charging device including a charging base, in which a first charging electrode assembly and a second charging electrode assembly are arranged separately for connecting with a first and a second electrode of the electronic cigarette, wherein in the charging base, a charging slot is defined in the charging base. The first charging electrode assembly, the second charging electrode assembly and the charging base are coaxially sheathed, and both the first charging electrode assembly and the second charging electrode assembly extend into the charging slot. By implementing this structure, the electronic cigarette has a simplified and compact structure and an easy assembly, also facilitates a steady electrical connection with the electronic cigarette. When charging, it is only needed to insert the electronic cigarette into the charging slot.
Owner:HUIZHOU KIMREE TECH
Hybrid polymer/metal plug for treating chondral defects
Osteochondral implants for repair of chondral defects and providing bone fixation through bone ongrowth and / or ingrowth. The implant is provided with a base allowing for bone ongrowth and / or ingrowth and a top attached to the base, the top being formed of a material having a compressive resistance similar to that of the cartilage. The material of the top is polycarbonate urethane, for example. The base may comprise a porous substrate for bony ingrowth formed of metal or PEEK and having a pattern porosity about similar to the porosity of cancellous bone. One side of the top attaches to the base for stability, and the other side of the top forms a surface for articulating with the opposing cartilage surface of the joint.
Owner:ARTHREX
Double-drum microbial fuel cell
InactiveCN1937297ALow costLower internal resistanceBiochemical fuel cellsHigh concentrationInternal resistance
The fuel cell is composed of outer tube, inner tube, even water distributor, filler, graphite, graphite rod, and load etc. Anode chamber is surrounded by outer tube and inner tube. Sewage enters into anode chamber from the even water distributor, and flows to cathode chamber through diversion trench. Being filled to the outer tube, the filler is as carrier for microbe. Being pasted on inner wall of the outer tube, flexible graphite is in use for collecting anode current. Graphite rod setup inside cathode chamber is in use for collecting cathode current. Graphite rod, flexible graphite, and load constitute external circuit. The invention is suitable to degrading organic wastewater in high concentration, and generating electricity, or cleansing domestic sewage. The fuel cell is suitable to continuous running for long-term. Features are: low cost, low internal resistance, large capacity for generating electricity and capable of denitrifying at same time.
Owner:TSINGHUA UNIV
Coatings for modifying hard surfaces and processes for applying the same
InactiveUS7066998B2Fine surfaceClean appearanceInorganic/elemental detergent compounding agentsOrganic detergent compounding agentsMetallurgyNanoparticle
Materials for coating, coating compositions, methods and articles of manufacture comprising a nanoparticle system or employing the same to impart surface modifying benefits for all types of hard surfaces are disclosed. In some embodiments, dispersement of nanoparticles in a suitable carrier medium allows for the creation of coating compositions, methods and articles of manufacture that create multi-use benefits to modified hard surfaces. In some embodiments, actively curing the coating composition on the hard surfaces, including, but not limited to by radiative heating the air surrounding the hard surface with the coating thereon can be used to increase the durability of the hard surface coating.
Owner:THE PROCTER & GAMBLE COMPANY
User behavior and action detection and recognition method
ActiveCN106095099AMeet the needs of abnormal behavior monitoringFix bugsInput/output for user-computer interactionCharacter and pattern recognitionComputation complexityData set
The invention relates to a user behavior and action detection and recognition method. Data acquisition of three-dimensional accelerated speeds is achieved through a three-axis acceleration sensor, original data is filtered with a wavelet transformation filtering algorithm, and reliability is improved. On the basis, a data set is effectively optimized with the principle component analysis, four different pattern recognition classification algorithms and three kinds of classification model optimizing algorithm are compared at the same time, and an optimal parameter optimization algorithm and an optimal classifier are finally obtained, so that user behaviors and actions are detected and effectively recognized, and alarming is carried out on abnormal behaviors; besides, experiment results show that the method has the advantages of being high in accuracy, low in relative calculation complexity, high in real-time performance and the like.
Owner:NANJING UNIV OF POSTS & TELECOMM
Winding type permanent magnet coupling transmission device
ActiveCN104767357ASimple structureEasy maintenanceMagnetic circuitDynamo-electric gearsPermanent magnet rotorPower flow
Owner:JIANGSU MAGNET VALLEY TECH
Lighting unit for vehicle
ActiveUS20150338048A1Low costImprove lighting efficiencyMechanical apparatusPoint-like light sourceLight emission
Provided is a lighting unit for a vehicle capable of implementing surface light emission from a single light emitting surface. The light unit can function to implement a light emitting region in which at least two light colors are displayed or different light colors are implemented, or to locally emitting light.
Owner:LG INNOTEK CO LTD
Electronic proof system based on blockchain, electronic proof storage method and electronic proof file recovery method
ActiveCN108647523AImprove securitySolve problems such as leaksDigital data protectionSpecial data processing applicationsRecovery methodRestoration method
The invention discloses an electronic proof system based on a blockchain. The electronic proof system comprises a distributed file management system and a consensus network bookkeeping device, whereinthe distributed file management system comprises an attribute basic encryption module, a file segmentation module, a copying and distributing module, a Hass processing module and a sending module, and the consensus network bookkeeping device comprises a consensus network module and a bookkeeping module. The invention also discloses an electronic proof storage method and an electronic proof file recovery method. By use of the electronic proof system based on blockchain, the electronic proof storage method and the electronic proof file recovery method, permission control of a multi-hierarchy relationship can be realized, centralized management can be realized, risks are dispersed, user information can effectively prevent from being leaked, data can not be tampered and can be subjected to tracking traceability, a manual operation can be withdrawn, and information transfer efficiency is high.
Owner:SOUTH CHINA UNIV OF TECH
Handheld device capable of independently actuating camera and method thereof
InactiveUS20090111517A1Camera function can be quicklyReduce power consumptionSubstation equipmentDevices with fuctional cameraCamera moduleHand held devices
The present invention discloses a handheld device capable of independently actuating camera and method thereof. The handheld device comprises an input module, a storage module, a mobile phone module and a camera module. The input module has a first button and a second button. The storage module is connected to the input module and stores a first operating system and a second operating system. The mobile phone module is connected to the storage module and provides a mobile phone function. The camera module is connected to the storage module and provides a camera function. When the first button is pressed, the first operating system is activated for enabling the mobile phone module to provide the mobile phone function. When the second button is pressed, the second operating system is activated for enabling the camera module to provide the camera function.
Owner:MITAC INT CORP
Locking source synchronous selection pass receiver device and method
ActiveCN101079018AFix bugsWork around limitationsPulse automatic controlElectric digital data processingMultiplexerDelay-locked loop
The present invention provides a device of locking source synchronization gating receiver, including delay locking loop and gating receiver. The delay locking loop receives reference clock and generates selection vector signal and coding selection vector signal, the selection vector is used for selecting one of delay editions of the reference clock signal which are generated through the reference clock signal pass through certain periods. The selection vector subtracted by a value is used by Gray encode for indicating the first time period. All gating receivers connect with the delay locking loop. Each gating receiver receives the coding selection vector signal and corresponding gating signal, and locks the corresponding gating signal during the first time period after transforming the corresponding gating signal. The Gray code multiplexer selects one delay edition of corresponding gating signal to determine the first time period through the coding selection vector signal.
Owner:VIA TECH INC
Unmanned aerial vehicle platform-based port real scene monitoring system and method
InactiveCN106970639AFix bugsSimple structureClosed circuit television systemsPosition/course control in three dimensionsUncrewed vehicleMonitoring system
The invention discloses an unmanned aerial vehicle platform-based port real scene monitoring system and method. The system comprises a unmanned aerial vehicle platform sub-system and a ground command, monitoring and control sub-system; the unmanned aerial vehicle platform sub-system carries out omnibearing, zero-dead angle, near-distance and target trackable real-time monitoring on each region of a port; and the ground command, monitoring and control sub-system is used for controlling the operation of the unmanned aerial vehicle platform sub-system and receiving and analyzing information acquired by the unmanned aerial vehicle platform sub-system. According to the unmanned aerial vehicle platform-based port real scene monitoring system and method of the invention adopted, a four-rotor unmanned aerial vehicle platform is adopted as a carrier; and since the four-rotor unmanned aerial vehicle platform is simple in structure, can hover to avoid an obstacle and carry task load, the defects of traditional analog monitoring product equipment or network high-definition monitoring equipment due to factors such as visual blind spots, weather environment and maintenance and updating can be eliminated, and omnibearing, zero-dead angle, near-distance and target trackable real-time monitoring can be performed on each region of the port.
Owner:WUHAN UNIV OF TECH
Hybrid polymer/metal plug for treating chondral defects
ActiveUS20110153028A1Easy to anchorFix bugsBone implantTissue regenerationSacroiliac jointBiomedical engineering
Osteochondral implants for repair of chondral defects and providing bone fixation through bone ongrowth and / or ingrowth. The implant is provided with a base allowing for bone ongrowth and / or ingrowth and a top attached to the base, the top being formed of a material having a compressive resistance similar to that of the cartilage. The material of the top is polycarbonate urethane, for example. The base may comprise a porous substrate for bony ingrowth formed of metal or PEEK and having a pattern porosity about similar to the porosity of cancellous bone. One side of the top attaches to the base for stability, and the other side of the top forms a surface for articulating with the opposing cartilage surface of the joint.
Owner:ARTHREX
Layered multitime pressure regulating pulp conditioning casting method
The invention relates to a layered multiple pressure regulating grouting method which comprises the processing sequence: (1) a reinforced area is set up; the location and the depth of a grout stopping belt are determined; (2) the grouting soil distribution is determined according to different geological conditions, engineering features in the axial direction of a grouting hole; (3) a vary number of grouting pipes with different length are buried in the axial direction of a grouting hole according to different artesian conditions to cause grout to be spread in the designed different location; (4) a signal pole or soil sequencing holes of the reinforced area are repeatedly grouted. The invention has the characteristics of tangibility and strong pertinence, especially provides an efficient base process method for running grout, leaping grout caused by using a traditional grouting method in the geological conditions such as karst areas, large poriness when the fixing area is grouted and reinforced, and solves the deficiencies and shortcomings of the original construction technique through improving the techniques such as the grouting techniques, grouting materials, etc.
Owner:山东省交通厅公路局 +1
Stylus system for modifying small structures
InactiveUS20050266586A1Rapidly and accurately modifyingFix bugsNanostructure manufactureMaterial analysis using wave/particle radiationDefect repairEngineering
An improved method for rapidly and accurately modifying small structures, including structures on a micron or nanometer scale, suitable for the repair of defects in lithographic photo-masks and semiconductors on a nano-scopic level. Features or samples repaired may be conductive or non-conductive. A single instrument can be employed to both observe the surface of the mask or wafer, and to effectuate the repair of conductive and non-conductive features thereon. Using a Stylus-Nano-Profilometer probe, rapid lateral strokes across the sample surface in a definable pattern at known high applied pressure are used to effectuate defect repair. The tip of the probe can also be dithered rapidly in a pattern or used as to create a jackhammer effect to more effectively remove material from the sample surface.
Owner:FEI COMPANY
Display device and method for inspecting the same
InactiveUS20070159742A1Fix bugsCathode-ray tube indicatorsElectric light circuit arrangementElectricityDisplay device
An object is to provide a display device, in a part of which a monitor light emitting element is provided and in which an anode and a cathode of the monitor light emitting element are prevented from short-circuiting in an early stage and over time by using a circuit which corrects a voltage or a current to be supplied to a light emitting element in consideration of electrical property fluctuation of the monitor light emitting element, and a method for inspecting the display device. A monitor light emitting element is provided, which is electrically connected to a monitor line for supplying a current is provided, and a circuit is provided, which electrically disconnects the monitor light emitting element when an anode and a cathode of the monitor light emitting element are short-circuited in an early stage or over time. Further, a circuit for checking circuit operation before or after a step of providing the monitor light emitting element is provided.
Owner:SEMICON ENERGY LAB CO LTD
Memory and sensitive amplifier
The invention discloses a memory and a sensitive amplifier, wherein the sensitive amplifier comprises a pre-charging unit, a bit line adjusting unit, a current mirror unit, a comparison unit, a reverse unit, a bias unit and an output unit, wherein the reverse unit is connected between the input end and the output end of the current mirror unit and is coupled with the voltage of a data wire node and the voltage of a data node; and the bias unit is used for biasing the voltage of the data node to the preset voltage value when the bit line is pre-charged. The memory and the sensitive amplifier solve the problem that output data are mistaken because the voltage of the data rises when the pre-charging of the bit line is finished.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP
LDPC post-processor architecture and method for low error floor conditions
ActiveUS20170149446A1Reduce error rateSolve the real problemError correction/detection using multiple parity bitsCode conversionComputer architecturePost processor
Post-processing circuitry for LDPC decoding includes check node processor for processing shifted LLR values, a hard decision decoder circuitry for receiving processed LLR information and performing parity checks on the processed LLR information. Post-processing control circuitry controls updating of LLR information in the check node processor. The check node processor, hard decision decoder, and control circuitry cooperate to identify check nodes with unsatisfied parity checks after an iteration cycle, identify neighborhood variable nodes that are connected with unsatisfied check nodes, identify satisfied check nodes which are connected to neighborhood variable nodes, and modify messages from neighborhood variable nodes to satisfied check nodes if needed to introduce perturbations to resolve decoding errors. Neighborhood identification circuitry determines which variable nodes are connected with unsatisfied check nodes, that have failed a parity check, and produces a signal indicating which variable nodes are connected to unsatisfied check nodes.
Owner:TEXAS INSTR INC
Method for treating cefalexin enzyme-process synthesizing mother liquor wastewater
ActiveCN104058537ASolve the real problemFix bugsGeneral water supply conservationDispersed particle separationReverse osmosisWastewater
The invention discloses a method for treating cefalexin enzyme-process synthesizing mother liquor wastewater. The mother liquor wastewater is treated by adopting an electroosmosis integrated reverse osmosis system, wherein the electroosmosis integrated reverse osmosis system consists of primary electroosmosis equipment, secondary electroosmosis equipment, a reverse osmosis device and crystallization equipment. The method disclosed by the invention adopts a reverse osmosis technology to recycle water resources in secondary electroosmosis desalted mother liquor, and to recycle the water to an electroosmosis system as the secondary electroosmosis system concentration room inlet water, realizes comprehensive utilization of wastewater resources, minimizes environmental influences and lowers treatment cost.
Owner:浙江佰辰低碳科技有限公司
Preparation method of tensile transparent conductive membrane material
The invention provides a preparation method of tensile transparent conductive membrane material. Concretely, the invention employs an emulsion method to arrange metal nano wires of high draw ratio, in order to construct an ordered tensile transparent conductive network structure, and solve a caking problem of polymer, thereby the ordered grid structure of the metal nano wires is controllable, and can not be destroyed in a stretching state, and can be combined better with polymers. The light transmittance of the metal nano wire grid is 50-90%, and the diamond resistor is 10-100 ohm / sq, and the number of wire in a grid controllable, and the size of a unit grid is controllable between 50-500 nm; the membrane material can be stretched for more than 1000 times, and the elongation is 5-150%, and the rate of conductivity change is 5-50%.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
Combination stencil printer and dispenser and related methods
A combination stencil printer and dispenser includes a frame, a stencil coupled to the frame, a substrate support coupled to the frame to support a substrate in a print position, and a print head coupled to the frame to deposit and print viscous material over the stencil. In one embodiment, the combination stencil printer and dispenser further includes a cleaning assembly coupled to the frame to wipe excess viscous material from a bottom surface of the stencil. The combination stencil printer and dispenser further includes a dispenser mounted on the cleaning assembly to dispense viscous material on the substrate when the substrate is in the print position. In other embodiments, the dispenser can be mounted on a movable stencil or on an independent gantry provided within the combination stencil printer and dispenser.
Owner:ILLINOIS TOOL WORKS INC
Process for methanol coupled catalytic cracking reaction of naphtha using a modified zsm-5 molecular sieve catalyst
ActiveUS20140051900A1Improving catalytic cracking efficiencyLow carbon olefinsCatalytic crackingLiquid hydrocarbon mixture productionCyclic alkaneNaphtha
The present invention provides a process for methanol coupled catalytic cracking reaction of naphtha using a modified ZSM-5 molecular sieve catalyst, comprising performing a co-feeding reaction of methanol and naphtha on the modified ZSM-5 molecular sieve catalyst to produce low carbon olefins and / or aromatic hydrocarbons. In the process, the modified ZSM-5 molecular sieve catalyst comprises, in term of weight percent, 25-80 wt % of a ZSM-5 molecular sieve, 15-70 wt % of a binder, and 2.2-6.0 wt % of lanthanum and 1.0-2.8 wt % of phosphorus loaded on the ZSM-5 molecular sieve. The naphtha comprises 63.8-89.5 wt % of saturated chain alkanes and 5.6-29.8 wt % of cyclic alkanes. The naphtha and methanol concurrently pass through the catalyst bed, which are reacted during contacting with the catalyst under a reaction condition of a reaction temperature of 550-670° C., a mass ratio of methanol to naphtha of 0.05-0.8, and a total mass space velocity of naphtha and methanol of 1.0-5 h−1.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Method and apparatus for controlling time of flight confidence map based depth noise and depth coverage range
ActiveUS20120123718A1Fix bugsOptical rangefindersElectrical measurementsTime of flight sensorConfidence map
A method and apparatus for fixing a depth map wrap-around error and a depth map coverage by a confidence map. The method includes dynamically determining a threshold for the confidence map threshold based on an ambient light environment, wherein the threshold is reconfigurable depending on LED light strength distribution in TOF sensor, extracting, via the digital processor, four phases of Time Of Flight raw data from the Time Of Flight sensor data, computing a phase differential signal array for fixed point utilizing the four phases of the Time Of Flight raw data, computing the depth map, confidence map and the average light signal strength utilizing the phase differential signal array, obtaining the dynamic confidence map threshold for wrap around error correction utilizing the average light signal strength, and correcting the depth map wrap-around error utilizing the depth map, the confidence map and the dynamic confidence map threshold.
Owner:TEXAS INSTR INC
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