Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
34 results about "Spot method" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Features generation and spotting methods and systems using same
An image partitioner is configured to find a partition point that divides a received image into four sub-images each having a pre-selected activated pixel count. A recursion processor is configured to (i) apply the image partitioner to an input image to generate a first partition point and four sub-images and to (ii) recursively apply the image partitioner to at least one of the four sub-images for at least one recursion iteration to generate at least one additional partition point. A formatter is configured to generate a features representation of the input image in a selected format. The features representation is based at least in part on the partition points. The features representation can be used in various ways, such as by a classifier configured to classify the input image based on the features representation.
Owner:XEROX CORP
Spotting device for manufacturing DNA microarray and spotting method using the same
InactiveUS20050158755A1Shorten production timeUniform shapeBioreactor/fermenter combinationsMaterial nanotechnologyCross-linkDNA microarray
A spotting device for manufacturing a DNA microarray and a spotting method using the same are provided. The spotting device for dropping and immobilizing a solution of biomolecules, for example nucleic acids such as probe DNA, mRNA, and peptide nucleic acid (PNA), and proteins on a DNA microarray surface to manufacture a DNA microarray, includes a first microchannel with a tube shape; a supplying unit supplying the solution of biomolecules to the first microchannel; a biomolecule solution droplet forming unit cross-linked to the first microchannel and forming biomolecule solution droplets with a predetermined size by periodically jetting a gas toward the biomolecule solution flowing in the first microchannel; a second microchannel linked to the first microchannel and having a greater diameter than the first microchannel; a cooling unit surrounding at least a part of the second microchannel to freeze the biomolecule solution droplets which pass through the second microchannel; and a spotting unit thawing the frozen biomolecule solution droplets and dropping the thawed biomolecule solution droplets on a surface of the DNA microarray. The spotting device can form spots with uniform shape, minimize an effect of temperature on biomolecules, and easily manipulate biomolecules when manufacturing a DNA microarray.
Owner:SAMSUNG ELECTRONICS CO LTD
Systems and methods for semiconductor structure processing using multiple laser beam spots
InactiveUS20080124816A1Semiconductor/solid-state device testing/measurementSemiconductor/solid-state device detailsSemiconductor structureSpot method
Methods and systems selectively irradiate structures on or within a semiconductor substrate using multiple laser beams. The structures may be laser-severable conductive links, and the purpose of the irradiation may be to sever selected links.
Owner:ELECTRO SCI IND INC
Reconfigurable semiconductor structure processing using multiple laser beam spots
InactiveUS20090011614A1Semiconductor/solid-state device detailsSolid-state devicesTransverse axisSemiconductor structure
Methods and systems selectively irradiate structures on or within a semiconductor wafer using multiple laser beams. The structures may be laser-severable conductive links, and the purpose of the irradiation may be to sever selected links. The structures are arranged in rows and may be processed in either an on-axis mode or a cross-axis mode. In the on-axis mode, the beam spots fall on structures in the same row as they move along the row. In the cross-axis mode, the beam spots fall on structures in different rows as they move along the rows.
Owner:ELECTRO SCI IND INC
fluorescent powder prefabricated film for white light LED and preparation method thereof
ActiveCN101533882ASimple processThickness is easy to controlSpectral modifiersSemiconductor devicesScreen printingEpoxy
The invention provides a fluorescent powder prefabricated film for a white light LED and a preparation method thereof. The components of the film are fluorescent powder and a binding agent, and the binding agent is silica gel or epoxide resin. The preparation method comprises the following steps: weighing the fluorescent powder and the binding agent according to mass ratio of the fluorescent powder and the binding agent being 1:0.5-5, and mixing the two uniformly; coating the mixture on a macromolecular material carrier by a silk-screen printing method to form a layer of film; and then curing for 10 to 300 minutes at a temperature of between 100 and 200 DEG C to prepare the film. A single LED packaged by the film can solve the problem of poor light-emitting consistency in the same batch and different batches in a glue spotting method, and saves a sorting process in the glue spotting method; and the film is adopted to directly manufacture a whole LED, and the production efficiency can be improved and the service life can be prolonged greatly.
Owner:NANJING UNIV OF TECH
Detection method of medicine and toxin content in plasma preparation card
PendingCN108593828AEliminate distractionsFreezing is not requiredComponent separationDiseaseToxicant
The invention discloses a method for detecting the content of at least one kind of target medicine or toxin in a plasma preparation card. The method comprises the following steps of after a plasma preparation card sample obtained in clinics is extracted according to certain steps, performing analysis by an ultrahigh-performance liquid chromatograph-quadrupole rod flight time mass spectrograph; obtaining the remaining time of the target medicine or toxin and high-resolution first-stage and second-stage mass-spectrogram; performing matching with the preset analysis article database; confirming the types of medicine or toxin; for medicine and toxin which are positive in screening, building the standard curve range applicable to clinic detection; quantitatively detecting the concentration of medicine or toxin in the plasma preparation card by using an ultrahigh-performance liquid chromatograph-triple quadrupole rod mass spectrograph technology. After the concentration is converted througha formula, the corresponding plasma concentration is obtained; the disease auxiliary diagnosis is provided for clinic doctors. Compared with a whole blood spot method, the detection method provided bythe invention has the advantages that the interference of the whole blood substrates and the blood cell hematocrit influence are eliminated; the detection result is more accurate; higher sensitivityand resolution ratio are realized.
Owner:李水军 +2
Atmospheric correction and regional mineral map spotting method utilizing multi-scene ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) remote sensing data
InactiveCN101871884AEliminate differencesScattering properties measurementsColor/spectral properties measurementsBaseline dataSensing data
The invention relates to an atmospheric correction and regional mineral map spotting method utilizing multi-scene ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) remote sensing data, comprising the following nine steps of: (1) reading in ASTER data; (2) selecting reference data, wherein one-scene data is selected from multi-scene data as a reference for atmospheric correction; (3) carrying out the atmospheric correction on the reference data to obtain reference reflectivity data; (4) carrying out atmospheric correction on non-reference data to obtain non-reference reflectivity data; (5) calculating the overlay region spectral characteristic difference of the reference reflectivity data and the non-reference reflectivity data; (6) calculating the atmospheric water vapor content and the atmospheric visibility of the non-reference data; (7) newly carrying out the atmospheric correction on the non-reference data by utilizing the calculated atmospheric water vapor content and the atmospheric visibility to obtain non-reference reflectivity data; (8) carrying out inlaying treatment on the multi-scene reflectivity data including the reference data and the non-reference data; and (9) carrying out mineral identification and map spotting by utilizing spectral indexes. The method effectively eliminates inlaid gaps among the multi-scene data, thereby realizing the regional mineral map spotting.
Owner:CHINA AERO GEOPHYSICAL SURVEY & REMOTE SENSING CENT FOR LAND & RESOURCES
Methods and systems for semiconductor structure processing using multiple laser beam spots
ActiveUS20080121627A1Semiconductor/solid-state device detailsSolid-state devicesSemiconductor structureSpot method
Methods and systems selectively irradiate structures on or within a semiconductor substrate using multiple laser beams. The structures may be laser-severable conductive links, and the purpose of the irradiation may be to sever selected links.
Owner:ELECTRO SCI IND INC
Methods and systems for semiconductor structure processing using multiple laser beam spots
ActiveUS8383982B2Semiconductor/solid-state device detailsSolid-state devicesSemiconductor structureSpot method
Owner:ELECTRO SCI IND INC
Method for synthesizing 5-amide-6-hydroxy-2-(4-carboxylphenyl)benzoxazole
The invention relates to a synthesis method of 5-amido-6-oxhydryl-2-(4-carboxyl benzyl group) benzoxazole (ABA), which takes 5-nitryl-6-oxhydryl-2-(4-methoxycarbonyl phenyl) benzoxazole (NHAB) as raw material that is put into hydrosolvent for hydrolysis by alkaline substance at 60-100 DEG C and then one-spot method is directly used for preparing the ABA through in situ synthesis with the effect of reducer, wherein, the alkaline substance is carbonate of alkali metals. Mass ratio of feeding of the NHAB to the alkali substance is 1:0.8 to 2.25, and the reducer is sodium hydrosulfite (Na2S2O4) or hydrogen. When the Na2S2O4 is used as the reducer, the dosage is 2.0-3.0 time of the mass of the NHAB. The invention has concise technique, high yield and low requirement for equipment. The solvent used in the invention is water, which avoids induction of organ solvent, thereby reducing production cost without polluting the environment. The prepared ABA has high purity and better polycondensation effect, thereby showing good industrial prospect.
Owner:YANCHENG DRAGON CHEM
Homogeneous beam spot method for electron beam surface treatment
ActiveCN101924005AEasy to implementImprove economyElectric discharge tubesComputer control systemWave shape
The invention relates to an electron beam surface treatment method, in particular to homogeneous beam spot technology in electron beam surface treatment technology, belonging to the technical field of surface treatment. The homogeneous beam spot technology for electron beam surface treatment mainly comprises the steps of beam spot waveform design, programming and process test and optimization, etc. The technology is characterized by designing the homogeneous beam spot waveform in conformity with the requirement of surface treatment according to the electron beam scanning principle and the energy distribution law in the movement process, carrying out curve fitting on the beam spot waveform by the least square method in a Cartesian coordinate system, programming the fitting result and storing the programmed fitting result into a computer control system, carrying out test and optimization by controlling the process parameters of electron beam surface treatment and finally obtaining large-area homogeneous beam spot technology. The method is easier to realize, has better economical efficiency, overcomes the defect that the energy of other electro beam spots are not distributed homogeneously, dispenses with extra control equipment and can be directly realized on the general electron beam equipment.
Owner:NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
Image processing system and method for removing or compensating for diffraction spots
InactiveUS6630660B1Fast processingThe result is accurateElectric discharge tubesElectromagnetic finder monitoring/testingDiffraction effectImaging processing
Method and apparatus for determining the location at which radiation is incident on the sensor system which includes an EMI screening mesh by comparing the actual image detected, which includes the higher order diffraction effects, with a search or sample image applied sequentially at different locations and determing the location of the sample image which gives the closest match. The sample image corresponds to an expected pattern or image from a point source incident at a particular location on a particular window / sensor system, and may be generated from a real source of known location and properties incident on the system, or may be a generated image, such as a standard image such as a cross pattern or determined mathematically, for example using Fourier transforms. Preferably, once the location of the point of incidence of the radiation has been determined, image processing techniques are applied to remove the diffraction spots.
Owner:BAE SYSTEMS PLC
In-use vehicle engine oil dilution quick evaluation method and testing device thereof
The invention discloses an in-use vehicle engine oil dilution quick evaluation method and a testing device thereof. The method includes: using a measuring cylinder to sectionally receive in-use vehicle engine oil of V0 in total volume; dividing V1 of liquid obtained by condensing by V0 to get dilution R of detected engine oil, namely R=V1 / V0, wherein V1 refers to volume after heating and condensing, R refers to the dilution of the detected engine oil, and the larger R is, the higher the dilution is. By the method, the problem that a gas chromatograph which is high in price needs to be arranged when existing chromatography is used to detect dilution of engine oil is solved, the problem that a spot method is low in accuracy and poor in repeatability is solved, and the problem that methods for quickly detecting engine oil dilution proportion in existing patents are long in titration time, high in calculation difficulty and low in pertinence is solved.
Owner:金湖县综合检验检测中心
System for semiconductor structure processing using multiple laser beam spots
InactiveUS20110186555A1Semiconductor/solid-state device detailsSolid-state devicesSemiconductor structureSpot method
Methods and systems selectively irradiate structures on or within a semiconductor substrate using a plurality of pulsed laser beams. The structures are arranged in a row extending in a generally lengthwise direction. The method generates a first pulsed laser beam that propagates along a first laser beam axis that intersects the semiconductor substrate and a second pulsed laser beam that propagates along a second laser beam axis that intersects the semiconductor substrate. The method directs respective first and second pulses from the first and second pulsed laser beams onto distinct first and second structures in the row. The method moves the first and second laser beam axes relative to the semiconductor substrate substantially in unison in a direction substantially parallel to the lengthwise direction of the row.
Owner:BRULAND KELLY J +4
Pressure casting die parting surface spotting method
InactiveCN106825492AGuaranteed parallelismHigh matching precisionFoundry mouldsFoundry coresSpot methodPressure casting
The invention provides a pressure casting die parting surface spotting method. The method is characterized by comprising the steps as follows: a molding lining mold and a slider of a pressure casting die are spotted preliminarily, and the contact area is required to exceed 70% of the area of parting surfaces in the natural state or under the smaller die clamping force; then, the molding lining die and the slider are assembled in a die frame for overall fine spotting of the die. The matching accuracy of the parting surfaces of the pressure casting die can be improved and the grinding efficiency is improved with the adoption of the method. Copper sheets in the same dimensions are uniformly distributed on the parting surfaces in the die spotting process, and the parallelism of the parting surfaces of moving and static dies is guaranteed. Finally, the contact area reaches 95% of the area of the parting surfaces or above after die matching, and the good spotting effect is realized.
Owner:CITIC DICASTAL
Quantitative determination device by gold marking spot method based on digital picture treatment
InactiveCN101451948AProcessing speedTo achieve the purpose of light and portableMaterial analysis by optical meansBiological testingHuman bodyDigital signal
The invention relates to a gold marking spotting method quantification detection equipment based on digital image processing, which is detection equipment based on a digital signal processor (DSP) and image processing technology, wherein a reaction plate image reading unit takes charge of reading reaction plate image, digital signals of the image are introduced to DSP, processed by the image process unit, corresponding concentration information to be measured is obtained, finally the information is output through a display unit. The invention is used in fast measurement of hormone content in humoral immunity of human body, concentration change of specific albumen, presence of pathogen or corresponding antibody, users can conveniently obtain concentration information of certain component to be measured in body fluid of certain human to be measured through simple operation, thereby delivering correct survey report to the doctor before the doctor makes decision, causing the most effective treatment on each specific patient.
Owner:上海衡道光电仪器有限公司
One-spot method for converting lutein ester into zeaxanthin
The invention discloses a one-spot method for converting lutein ester into zeaxanthin, which is characterized by comprising the following steps of: (1) under the protection of nitrogen, heating a solvent to the temperature of between 50 and 80DEG C, adding a lutein extract into the solvent in a mass / volume ratio of 1:(5-20), adding alkali in a mass ratio of the lutein extract to the alkali of 1:(1-6), heating to the temperature of between 80 and 150DEG C, and reacting by keeping the temperature for 10 to 72 hours until the reaction is finished; and (2) adding water to stop the reaction, adding 5 to 45 volume percent acid to neutralize until the pH value is 4-7, filtering, washing, and performing vacuum drying at the temperature of between 30 and 50DEG C to obtain high-purity zeaxanthin. In the method, the lutein extract is not required to be saponified, the steps are simple and short, the operation is simple, the yield is high, and the used organic solvent and reagents have low toxicity or no toxicity. The prepared zeaxanthin can be further purified to form a zeaxanthin monomer and used for preparing zeaxanthin microcapsules.
Owner:NANCHANG UNIV +1
fluorescent powder prefabricated film for white light LED and preparation method thereof
ActiveCN101533882BSimple processThickness is easy to controlSpectral modifiersSemiconductor devicesEpoxyScreen printing
The invention provides a fluorescent powder prefabricated film for a white light LED and a preparation method thereof. The components of the film are fluorescent powder and a binding agent, and the binding agent is silica gel or epoxide resin. The preparation method comprises the following steps: weighing the fluorescent powder and the binding agent according to mass ratio of the fluorescent powder and the binding agent being 1:0.5-5, and mixing the two uniformly; coating the mixture on a macromolecular material carrier by a silk-screen printing method to form a layer of film; and then curingfor 10 to 300 minutes at a temperature of between 100 and 200 DEG C to prepare the film. A single LED packaged by the film can solve the problem of poor light-emitting consistency in the same batch and different batches in a glue spotting method, and saves a sorting process in the glue spotting method; and the film is adopted to directly manufacture a whole LED, and the production efficiency can be improved and the service life can be prolonged greatly.
Owner:NANJING TECH UNIV
Daily monitoring method for ion implantation dip angle
ActiveCN104465435ASave resourcesReduce manufacturing costSemiconductor/solid-state device testing/measurementElectric discharge tubesElectrical resistance and conductanceSpot method
A daily monitoring method for an ion implantation dip angle comprises the following steps that firstly, original data about the relation between a square resistor and the ion implantation dip angle are obtained; secondly, a monitoring sheet is selected, ion implantation with the corner angle being zero degree and the dip angle being zero degree is carried out, annealing is carried out after implantation is carried out, the resistance of the square resistor is measured, continuous weekly monitoring is carried out, and the square resistance statistical value is obtained; thirdly, the resistance statistical value obtained through monitoring is compared with the minimum square resistor resistance value in the original data in the first step, if the comparison result is in the difference range allowed by a system, normal production is carried out, and if the comparison result is not in the difference range allowed by the system, a fourth step is carried out; fourthly, the implantation dip angle is re-checked through a five-spot method. By means of the daily monitoring method, a small number of monitoring sheets can be used, the effect of continuously and weekly monitoring the implantation angle of an ion implanter for a long time is achieved, the material resources are saved, and the production cost is reduced.
Owner:SHANGHAI HUALI MICROELECTRONICS CORP
Features generation and spotting methods and systems using same
InactiveUS8045798B2Character recognitionSensing by electromagnetic radiationSpot methodImage segmentation
An image partitioner is configured to find a partition point that divides a received image into four sub-images each having a pre-selected activated pixel count. A recursion processor is configured to (i) apply the image partitioner to an input image to generate a first partition point and four sub-images and to (ii) recursively apply the image partitioner to at least one of the four sub-images for at least one recursion iteration to generate at least one additional partition point. A formatter is configured to generate a features representation of the input image in a selected format. The features representation is based at least in part on the partition points. The features representation can be used in various ways, such as by a classifier configured to classify the input image based on the features representation.
Owner:XEROX CORP
Spotting device for manufacturing DNA microarray and spotting method using the same
InactiveUS7416705B2Uniform shapeMinimize impactMaterial nanotechnologyBioreactor/fermenter combinationsDNA microarrayCross-link
A spotting device for manufacturing a DNA microarray and a spotting method using the same are provided. The spotting device for dropping and immobilizing a solution of biomolecules, for example nucleic acids such as probe DNA, mRNA, and peptide nucleic acid (PNA), and proteins on a DNA microarray surface to manufacture a DNA microarray, includes a first microchannel with a tube shape; a supplying unit supplying the solution of biomolecules to the first microchannel; a biomolecule solution droplet forming unit cross-linked to the first microchannel and forming biomolecule solution droplets with a predetermined size by periodically jetting a gas toward the biomolecule solution flowing in the first microchannel; a second microchannel linked to the first microchannel and having a greater diameter than the first microchannel; a cooling unit surrounding at least a part of the second microchannel to freeze the biomolecule solution droplets which pass through the second microchannel; and a spotting unit thawing the frozen biomolecule solution droplets and dropping the thawed biomolecule solution droplets on a surface of the DNA microarray. The spotting device can form spots with uniform shape, minimize an effect of temperature on biomolecules, and easily manipulate biomolecules when manufacturing a DNA microarray.
Owner:SAMSUNG ELECTRONICS CO LTD
A Daily Monitoring Method of Ion Implantation Tilt Angle
ActiveCN104465435BSave resourcesReduce manufacturing costSemiconductor/solid-state device testing/measurementElectric discharge tubesElectrical resistance and conductanceSpot method
Owner:SHANGHAI HUALI MICROELECTRONICS CORP
Calculation method of water-through multiples at different parts in core-scale reservoirs
Owner:CHINA PETROLEUM & CHEM CORP +1
A rapid evaluation method for in-use engine oil dilution
The invention discloses an in-use vehicle engine oil dilution quick evaluation method and a testing device thereof. The method includes: using a measuring cylinder to sectionally receive in-use vehicle engine oil of V0 in total volume; dividing V1 of liquid obtained by condensing by V0 to get dilution R of detected engine oil, namely R=V1 / V0, wherein V1 refers to volume after heating and condensing, R refers to the dilution of the detected engine oil, and the larger R is, the higher the dilution is. By the method, the problem that a gas chromatograph which is high in price needs to be arranged when existing chromatography is used to detect dilution of engine oil is solved, the problem that a spot method is low in accuracy and poor in repeatability is solved, and the problem that methods for quickly detecting engine oil dilution proportion in existing patents are long in titration time, high in calculation difficulty and low in pertinence is solved.
Owner:金湖县综合检验检测中心
One-pot method for synthesizing N-methylnitrone compounds
The invention provides a one-pot method for synthesizing N-methylnitrone compounds, comprising the steps of: reducing nitromethane at first with a metal reducing agent, adding aromatic aldehyde directly into a reaction solution for heated reflux to obtain a target product having high yield. The invention uses the nitromethane and the aromatic aldehyde as raw materials, takes organometallic reagents such as zinc, tin and the like as the reducing agent, and employs a one-spot method for the heated reflux to directly synthesize the N-methylnitrone compounds. The method provided by the invention has the characteristics of less synthesis procedures, simple technique, easy operation, easily-available and inexpensive raw materials, mild reaction conditions, low synthesis cost, good product quality and high yield, as well as is an efficient and convenient method for synthesizing the N-methylnitrone compounds.
Owner:NORTHWEST NORMAL UNIVERSITY
Method for quickly constructing trace peptide base and synthetizing device for realizing method
PendingCN110590901AIncrease reaction rateAvoid cross contaminationPeptide preparation methodsLibrary creationSpot methodPeptide library
The invention provides a method for quickly constructing a trace peptide base and a synthetizing device for realizing the method, belongs to the field of polypeptide synthesis, and solves the problemthat a peptide base constructed by a conventional SPOT method is low in efficiency. The method for quickly constructing the trace peptide base comprises the following steps of S01: performing surfacederivatization on a lamellar solid phase carrier; S02: processing the lamellar solid phase carrier into a plurality of structure units; S03: filling the structure units into a reaction tank; S04: adding coupling reaction fluid to the reaction tank, performing a coupling reaction, after the reaction, directly adding a cleaning solvent to clean the reaction tank, after cleaning is completed, addingdeprotection reaction fluid to the reaction tank, performing a deprotection reaction, and after the reaction, directly adding the cleaning solvent to clean the reaction tank; and S05: repeating the above step S04, coupling amino acids one by one, selecting coupling reaction fluid corresponding to each amino acid during coupling different amino acids, and completing a lamellar solid phase carrier loaded full-protection peptide chain; and performing pyrolysis to obtain naked peptides or loaded naked peptides. The method disclosed by the invention has the advantages of being high in peptide baseconstruction efficiency and the like.
Owner:浙江昂拓莱司生物技术有限公司
Method and system for eliminating camera flare
ActiveCN104994309BVibrating light spots appearTelevision system detailsColor television detailsLight spotSpot method
A method and system for eliminating camera flare, the method comprising: 1. sequentially acquiring images A and B of the two frames before and after; 2. acquiring the bright regions A and B in the two frames of images A and B before and after; 3. counting the brightness The ratio of the number of pixels with a luminance value of 18% in the middle area A and B. When the statistical number ratio reaches the preset threshold, it is determined that the image data is valid; 4. Pixels that are valid for the bright area A and B Perform the weighted average calculation of the brightness value to obtain the weighted average value; if the weighted average value of the bright area A and B is less than the preset threshold, it is judged that the frame rates of the images A and B of the two frames before and after are consistent, and the judgment is completed and the camera mode is entered. Otherwise, it is determined that the frame rates of the two frames of images A and B are inconsistent, and the frame rate of the light is obtained again, and the next step is performed; 5. Adjust the frame rate of the screen display according to the frame rate of the light. According to the invention, when mobile terminals such as mobile phones take pictures of lights, light spots that shake images will not appear in the preview.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Preparation and application of 4′,5,7-trihydroxyflavone from Artemisia annua
ActiveCN105669622BHigh activityClear research goalsAntibacterial agentsOrganic chemistryApigeninAntibiotic Y
The invention provides extraction of 4',5,7-trihydroxyflavone from Artemisia annua and its application in the preparation of antibacterial drugs, relating to the technical field of medicine. The present invention uses petroleum ether, ethyl acetate, chloroform, and n-butanol to extract the medicinal material powder of Artemisia annua, and obtains extract powders of various polarities after concentration. Through antibacterial activity research, it is found that the polar parts of ethyl acetate and chloroform have significant activity . For the ethyl acetate and chloroform parts, the active fractions were obtained by silica gel column chromatography, thin-layer chromatography sampling method, and antibacterial activity experiment, and the high-purity was identified by high-performance liquid chromatography-mass spectrometry (LC-MS TOF) Fraction, and carry out MS, 1HNMR and 13CNMR analysis to this monomer fraction, obtain compound apigenin. The experimental method uses silica gel column chromatography to separate the polar parts. The separation method is simple and fast, and has certain practical significance.
Owner:SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
Atmospheric correction and regional mineral map spotting method utilizing multi-scene ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) remote sensing data
InactiveCN101871884BEliminate differencesScattering properties measurementsElectromagnetic wave reradiationBaseline dataSensing data
The invention relates to an atmospheric correction and regional mineral map spotting method utilizing multi-scene ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) remote sensing data, comprising the following nine steps of: (1) reading in ASTER data; (2) selecting reference data, wherein one-scene data is selected from multi-scene data as a reference for atmospheric correction; (3) carrying out the atmospheric correction on the reference data to obtain reference reflectivity data; (4) carrying out atmospheric correction on non-reference data to obtain non-reference reflectivity data; (5) calculating the overlay region spectral characteristic difference of the reference reflectivity data and the non-reference reflectivity data; (6) calculating the atmospheric water vapor content and the atmospheric visibility of the non-reference data; (7) newly carrying out the atmospheric correction on the non-reference data by utilizing the calculated atmospheric water vapor content and the atmospheric visibility to obtain non-reference reflectivity data; (8) carrying out inlaying treatment on the multi-scene reflectivity data including the reference data and the non-reference data; and (9) carrying out mineral identification and map spotting by utilizing spectral indexes. The method effectively eliminates inlaid gaps among the multi-scene data, thereby realizing the regional mineral map spotting.
Owner:CHINA AERO GEOPHYSICAL SURVEY & REMOTE SENSING CENT FOR LAND & RESOURCES
Homogeneous beam spot method for electron beam surface treatment
ActiveCN101924005BEasy to implementImprove economyElectric discharge tubesComputer control systemSpot method
The invention relates to an electron beam surface treatment method, in particular to homogeneous beam spot technology in electron beam surface treatment technology, belonging to the technical field of surface treatment. The homogeneous beam spot technology for electron beam surface treatment mainly comprises the steps of beam spot waveform design, programming and process test and optimization, etc. The technology is characterized by designing the homogeneous beam spot waveform in conformity with the requirement of surface treatment according to the electron beam scanning principle and the energy distribution law in the movement process, carrying out curve fitting on the beam spot waveform by the least square method in a Cartesian coordinate system, programming the fitting result and storing the programmed fitting result into a computer control system, carrying out test and optimization by controlling the process parameters of electron beam surface treatment and finally obtaining large-area homogeneous beam spot technology. The method is easier to realize, has better economical efficiency, overcomes the defect that the energy of other electro beam spots are not distributed homogeneously, dispenses with extra control equipment and can be directly realized on the general electron beam equipment.
Owner:NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com