34 results about "Spot method" patented technology

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.

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.

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.

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.

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.

The invention provides a calculation method for rock-core-dimension-based water passing multiples of different positions in an oil reservoir. The calculation method for the rock-core-dimension-based water passing multiples of the different positions in the oil reservoir comprises the steps that 1, a five-spot method homogeneous model streamline equation is derived, and streamline distribution of the different positions is obtained; 2, a distribution method for flow between injection and production wells as well as between streamlines is established, and flow distribution of the different positions is obtained; 3, the rock-core-dimension-based water passing multiples, of different positions along the streamlines, of a one-dimensional homogeneous model are calculated; and 4, the water passing multiples, of different positions along the streamlines, of a five-spot method homogeneous model are calculated. According to the calculation method for the rock-core-dimension-based water passing multiples of the different positions in the oil reservoir, abundant data of laboratory tests are fully used for accurately describing the water passing multiples of the different positions in the oil reservoir, displacement degrees of the different positions of the oil reservoir are represented quantitatively, and a solid foundation is laid for formulating mine field development and adjustment technical measures.

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.

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.

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.

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.

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.