148 results about "Micrograph" patented technology

A novel continuous process is used for production of carbon nanotubes (CNTs) by catalytic chemical vapor deposition (CCVD) of methane on iron floating catalyst in-situ deposited on MgO in a fluidized bed reactor. In the hot zone of the reactor, sublimed ferrocene vapors were contacted with MgO powder fluidized by methane feed to produce Fe / MgO catalyst in-situ. An annular tube was used to enhance the ferrocene and MgO contacting efficiency. Multi-wall as well as single-wall CNTs were grown on the Fe / MgO catalyst while falling down the reactor. The CNTs were continuously collected at the bottom of the reactor, only when MgO powder was used. The annular tube enhanced the contacting efficiency and improved both the quality and quantity of CNTs. The SEM and TEM micrographs of the products reveal that the CNTs are mostly entangled bundles with diameters of about 20 nm. Raman spectra show that the CNTs have low amount of amorphous carbon with IG / ID ratios as high as 10.2 for synthesis at 900° C. The RBM Raman peaks indicate formation of single-walled carbon nanotubes (SWNTs) of 1.0-1.2 nm diameter.

The present invention relates to an oxynitride phosphor comprising an α-sialon as the main component, which is represented by the general formula: MxSi12−(m+n)Al(m+n)OnN16−n:Lny (wherein 0.3≦x+y<1.5, 0<y<0.7, 0.3≦m<4.5, 0<n<2.25, and assuming that the atomic valence of the metal M is a and the atomic valence of the lanthanide metal Ln is b, m=ax+by) and in which the aggregation index, A1=D50 / DBET≦3.0 or the aggregation index A2=D50 / Dparticle≦3.0; and a production method and usage of the phosphor.The phosphor of the present invention has less aggregation and a narrow particle size distribution, and therefore is easy to uniformly mix with a resin or the like, and a high-brightness white LED can be easily obtained.D50 [μm]: The median diameter in the grain size distribution curve.DBET [μm]: The equivalent-sphere diameter calculated on the basis of a BET specific surface area.Dparticle [μm]: The primary particle diameter measured by the image analysis of a scanning electron micrograph.

The invention relates to a method for evaluating the porosity of mud shale at an objective layer segment, and belongs to the technical field of exploration and development of petroleum, geology and mining industry. The method can be used for evaluating the total porosity, the organic porosity and the inorganic porosity of the mud shale at the objective layer segment in a shale gas well. The method comprises the following steps: (1) determining the mass of various ingredients in a mud shale sample skeleton in unit mass at each depth point of the objective layer segment and the density of each dried sample block body and calculating the total porosity of the mud shale in all the depth points via the combination of the actual density of various minerals; (2) calculating the organic porosity (Phi organic') formed by the hydrocarbon generation of the mud shale at the objective layer segment by utilizing chemical kinetics; (3) seeking a solution of the organic porosity (Phi organic) according to scanning electron micrographs of multiple argon ion polishing samples in the same depth point; (4) calibrating the organic porosity (Phi organic') calculated according to the chemical kinetics by utilizing the organic porosity (Phi organic); and (5) seeking a solution of the inorganic porosity by utilizing a difference value of the total porosity and the calibrated organic porosity.

An object of the present invention is to provide a silver powder which is an unprecedentedly fine particulate silver powder, has a dispersibility more approximate to monodispersibility resulting less aggregation, and has a low impurity content. To achieve the above object, a fine particulate silver powder having unprecedented powder properties in which: a. the average particle diameter DIA of the primary particles obtained by image analysis of a scanning electron micrograph is 0.6 μm or less; b. the crystallite diameter is 10 nm or less; c. the sintering starting temperature is 240° C. or less; and d. the carbon content is 0.25 wt % or less is obtained by allowing a silver ammine complex aqueous solution S1 to flow in a certain flow path (hereinbelow referred to as “first flow path”) providing a second flow path b which joins the first flow path a on its way and allowing an organic reducing agent and additives S2, if required, to flow into the first flow path a through the second first flow path b, and contacting and mixing them at the joining point of the first flow path a and the second flow path b to allow reduction and deposition of particles, and washing the particles with an excess amount of an alcohol.

The invention discloses a method for automatically identifying conifer seeds based on wood micrographs, belonging to the computer identification technology of micrographs. The method is divided into as a training part and an identifying part, wherein the training part comprises the following specific steps of preparing basic sample materials, preprocessing, extracting PCA characteristics and extracting ICA characteristics; and the identifying part comprises the following specific steps of preparing materials to be identified, preprocessing, projecting and re-constructing images to be identified, and determining tree seed. By adopting the method, the data in the stored conifer cross section micrographic database can be trained, and the tree seeds are identified for the conifer to be identified by a computer similarity matching method. The method has the advantages of no influence from the subjection of an authenticator, high comprehensive capability, high operation efficiency, high speed and higher accuracy rate.

The invention discloses a method for measuring the volume, area and depth of etching pits simultaneously and belongs to the technical field of etching measurement and evaluation. A laser confocal microscopy is adopted to for measurement. The process step is to adopt the laser confocal microscopy. The measurement method comprises the following steps of: capturing samples, removing superficial oxidation products, micrographing and measuring data. The method has the advantages that the volume, area and depth of the etching pits are measured simultaneously by laser confocal micrograph of three-dimensional images. The three-dimensional images of the etching pits can be provided so as to visually observe the size and feature of the etching pits. In addition, the volume, area and depth of the etching pits can be measured simultaneously and the present technical problem that the etching pits are difficult to measure is resolved.

The invention provides the appraisal and selective method for the antineoplastic drug based on the cell micrograph information, which uses a sort of selection and appraisal hardware system to appraisal and select the antineoplastic drug by different fluorescence dye marking and measuring the multicellular parameter change in cell. The hardware system is made up of the high precision electric hydrous platform, the fluorescence vision system, the image collecting and processing system and working station. The diacetoxyl fluoresceine dyeing measures the active cell number; the double dyeing method of Hoechst33342 and iodized pyridine appraise the drug inducing the cell die; the three dyeing method of FDA, Hoechst33342 and PI analyzes the die mode induced by drug. The invention can measure at least two kinds of single cell or cell subgroup which expresses different drone cell organ. The method is in reason and can be used in study of drug action mechanism and selecting the high hedonic drug and toxicity analyzing, which can be used in selecting drug and appraising the drug toxicity.

A non-destructive method capable of real-time or on-line measurement of a wood or pulp fiber without sample pretreatment for the microfibril angle and the path difference. A circular polariscope in combination with a line spectral camera generating a micrograph insensitive to the orientation of a fiber and determined only by the fiber's properties related to polarized light. A line image across the fiber is captured and dispersed it into a spectral image to perform a real-time spectral analysis of the fiber's image.

The invention discloses a cervical cancer histopathology image analysis method and device based on depth learning. The method comprises the following steps: acquiring cervical cancer histopathology images and setting image labels for each image; training two convolution neural networks respectively based on the images used for training, and obtaining the two trained convolution neural networks; fixing parameters of the two trained convolutional neural networks, and training the all-connected layer one based on the images used for training, so that the trained all-connected layer one is obtained. The image to be tested is input into the trained classifier, and the two convolution neural networks extract feature vectors from the image respectively. The output feature vectors f1 and f2 are spliced together and input to the full connection layer 1, and the output feature vector f3. The classification result is determined by the element with the largest value in the feature vector f3 The invention can automatically classify and identify the differentiation degree of the original histopathological slice micrograph collected by the doctor and assist the doctor in diagnosis.

The invention discloses an automatic measuring and morphological classification method for particles precipitated from steel, comprising the steps as follows: firstly, the electron micrographs of the target particles precipitated from steel are subjected to image binary segmentation so as to obtain the binary images of the particles; the binary images of the target particles are denoised by a morphological filtering method, a seed filling method is adopted to fill holes, and the particles to be separated are determined by the domain value determined by experience criterion and the separation of agglomerate particles is carried out; the particles after separation are subjected to region labeling; finally, the neural network morphological classification models of the target particles precipitated from steel are established; and results are displayed and output in the form of graph files. The method can obtain ideal measuring and classification effect without omission inspection and re-inspection; the measurement accuracy of particle size can reach plus or minus 2 microns, the particle size distribution anastomotic rate can be more than 91.7 percent, and the anastomotic rate of morphological classification can be more than 90.5 percent; the particle measuring and classification of one view field cost only a few minutes; and the method has excellent universality and can be used in all the particle measuring and classification works with complex backgrounds and morphologies in the material field and biological field.

The present invention discloses a dual-channel structure optical digital phase contrast microscopy imaging system and a realization method thereof, wherein the system comprises a light source, a beam expansion collimating unit, a light splitter, a lens group and two same cameras. The beam expansion collimating unit is used to adjust the divergent light emitted out by the light source into the parallel light and irradiate to a to-be-detected object, the light splitter, the lens group and the two cameras form two sets of symmetrical 4f imaging systems and obtain two synchronization images to calculate a real-time bright field micrograph, a differential phase contrast graph and a quantitative phase diagram image. Based on utilizing the common and cheap devices in the market specifically, and by processing simply, a same phase contrast imaging effect can be realized, and the problems that the devices are expensive, and a spatial light modulator is sensitive to the polarization of the light, are solved.

Expandable polystyrenic resin particles having superior resistance to cracking of a molded foam product, having superior retention of blowing agent and maintaining expandability over a long period of time, a production process thereof, and a molded foam product are provided. These expandable polystyrenic resin particles contain a volatile blowing agent in polystyrenic resin particles obtained by impregnating and polymerizing a styrenic monomer in polyolefin resin particles to form a polystyrenic resin, wherein together with the styrenic monomer being used at 140 to 600 parts by weight to 100 parts by weight of the polyolefin resin particles, the average thickness of the surface layer observed in scanning electron micrographs obtained by immersing sections cut into halves through the center from the surface of the resin particles in tetrahydrofuran followed by extracting the polystyrenic resin component and capturing cross-sections of said sections is 15 to 150 μm, and the volatile blowing agent is contained at 5.5 to 13.0% by weight.

A novel continuous process is used for production of carbon nanotubes (CNTs) by catalytic chemical vapor deposition (CCVD) of methane on iron floating catalyst in-situ deposited on MgO in a fluidized bed reactor. In the hot zone of the reactor, sublimed ferrocene vapors were contacted with MgO powder fluidized by methane feed to produce Fe / MgO catalyst in-situ. An annular tube was used to enhance the ferrocene and MgO contacting efficiency. Multi-wall as well as single-wall CNTs were grown on the Fe / MgO catalyst while falling down the reactor. The CNTs were continuously collected at the bottom of the reactor, only when MgO powder was used. The annular tube enhanced the contacting efficiency and improved both the quality and quantity of CNTs. The SEM and TEM micrographs of the products reveal that the CNTs are mostly entangled bundles with diameters of about 20 nm. Raman spectra show that the CNTs have low amount of amorphous carbon with IG / ID ratios as high as 10.2 for synthesis at 900° C. The RBM Raman peaks indicate formation of single-walled carbon nanotubes (SWNTs) of 1.0-1.2 nm diameter.

The invention discloses a large-area high-resolution wide-field online measurement device and a measurement method for nanostructure films. Light emitted by a light source is converted into a single-wavelength light beam through a wavelength selector, and the single-wavelength light beam is converted into an elliptic polarized beam which is then projected to a to-be-measured nanostructure film. A film reflection beam passes through an imaging unit and a polarization state analysis unit to enter an area array detector to obtain imaging spectrum ellipsometry measurement data of the to-be-measured nanostructure film. The data are matched with theoretical values and extracted to obtain parameter values of the to-be-measured nanostructure film at corresponding pixels, and the extracted parameter values form three-dimensional micrograph morphology of the to-be-measured nanostructure film. The problem that an existing device is small in focal depth value of an instrument and difficult to realize wide-field clear imaging and high-transverse-resolution measurement at the same time is solved, and large-area high-resolution accurate measurement of the nanostructure film is truly realized.

Disclosed is an Ag-based sputtering target composed of pure Ag or Ag alloy wherein when the average grain size dave of the sputtering face of the Ag-based sputtering target is measured in accordance with the procedures 1-3 described below, the average grain size dave satisfies 10 μm or less.(Procedure 1) In the surface of the sputtering face, a plurality of locations are optionally selected, and a micrograph (magnification: 40-2,000 times) of each selected location is taken.(Procedure 2) Four or more straight lines are drawn in a grid pattern or radially on each micrograph, a number n of grain boundaries existing on the straight line is investigated, and a grain size d is calculated on the basis of the following equation on each straight line.d=L / n / m where, L represents the length of the straight line, n represents the number of the grain boundaries existing on the straight line, and m represents the magnification of the micrograph.(Procedure 3) The average value of the grain sizes d of all selected locations is made the average grain size dave of the sputtering face.

The invention discloses a minitype model for simulating an oil reservoir and a method for carrying out a petroleum displacement experiment by using the minitype model. A micrograph of a rock of the oil reservoir is processed to obtain an oil reservoir structure picture capable of being edited and copied, preparing a photomask or mould from the oil reservoir structure picture; reproducing the structure of the rock of the oil reservoir on the model through the photomask or mould, bonding, sealing, and preparing the minitype model capable of simulating the structure of the oil reservoir. By injecting different types of crude oil into the model, the condition of oil storage of the oil reservoir is simulated on a certain degree, different oil displacement agents are injected into the model to have the petroleum displacement experiment, the oil displacement effect is observed, and the rock core experiment based substitution of the traditional rock core is realized on a certain degree. The model used in the method accurately copies the structure of the oil reservoir, the processing process is simple, the manufacturing efficiency is high, the processing cost is low, the use level of the experiment agent is low, the experimental period is short, and the size of used equipment is small.

The invention relates to a rapid cross section manufacture and sub-surface micro-crack detection method of a single crystal semiconductor substrate. The method comprises the steps of cleaning the single crystal semiconductor substrate; processing one micro-groove or more micro-grooves on the single crystal semiconductor substrate along the direction of the same straight line of the surface to be detected; applying pressure onto the crack of the back(s) of the more micro-groove(s) of the single crystal semiconductor substrate, and enabling the single crystal semiconductor substrate to be broken into two along the direction(s) of the micro-groove(s) under the action of the force to complete sample preparation of the cross section of the single crystal semiconductor substrate; horizontally putting the detected cross section of the broken single crystal semiconductor substrate under an optical microscope and observing; moving the single crystal semiconductor substrate to enable the boundary between the surface to be detected and the detected cross section to appear in a visual area; adjusting the multiplying power of a lens of the optical microscope, and shooting the optical micrograph of a target area on the cross section; and measuring the maximum distance between the crack on the detected cross section and the boundary between the surface to be detected and the detected cross section to complete the sub-surface micro-crack detection work of the single crystal semiconductor substrate. The rapid cross section manufacture and sub-surface micro-crack detection method is feasible and dependable in detection result.

This invention discloses a preparation method for micrograph of YBCO high temperature and superconductive films, which utilizes YBCO gel with sensitive property and applies a micro-process method combining a chemical modification method and a Sol-Gel method to prepare the graph period reaching to the mum level.

The invention discloses a floating type Fe-TiO2 / cenosphere photocatalyst of which the photo-response range can be expanded to a visible region, and a preparation method and application thereof. The preparation method comprises the following steps of: at room temperature, adding a proper amount of Fe(NO3)3 solution into mixed solution of butyl titanate and anhydrous ethanol to form a Fe<3+>-doped TiO2 sol; then adding coal flying ash cenospheres in to the mixture, and stirring the mixture for loading; soaking the mixture for 24 hours; and filtering, drying and roasting the mixture to obtain the floating type Fe-TiO2 / cenosphere photocatalyst as shown by an electron micrograph, and testing the changes of the photo-response wavelength range of the Fe-TiO2 / cenosphere. Results show that the photo-response range of the photocatalyst is expanded to the visible region relative an undoped TiO2 / cenosphere, which is of great significance for improving the utilization ratio of sunlight; and compared with the TiO2 / cenosphere, the Fe-TiO2 / cenosphere can improve the efficiency of degrading methylene blue in visible light.

The invention provides a clay scanning electron micrograph segmentation method based on porosity. The clay scanning electron micrograph segmentation method comprises the following steps: adopting a conventional experimental method in soil mechanics to measure dry density of a clay sample and figuring out two thirds power of the dry density; preparing a microstructural sample of the clay sample in a laboratory; adopting a ZD-A3 freeze-dryer to freeze-drying the prepared sample, vacuumizing the sample, scanning the electron microscope when vacuum degree reaches 10-6Pa, observing a microstructure of the sample to obtain a scanning photograph; adopting image analysis software to extract binaryzation data corresponding to two thresholds; comparing parameter features of granule and porosity extracted under the two thresholds and figuring out area ratio of pore bodies; and stopping approaching when the area ratio equals to the two thirds power of the dry density and considering the threshold as picture segmentation threshold corresponding to the dry density. The beneficial effects of the clay scanning electron micrograph segmentation method provided by the invention are as follows: scientific change from three-dimensional parameters to two-dimensional parameters is realized, interference by man-made subjective factors is eliminated, and study for the microstructure of a soil body is more accurate.

Expandable polystyrenic resin particles having superior resistance to cracking of a molded foam product, having superior retention of blowing agent and maintaining expandability over a long period of time, a production process thereof, and a molded foam product are provided. These expandable polystyrenic resin particles contain a volatile blowing agent in polystyrenic resin particles obtained by impregnating and polymerizing a styrenic monomer in polyolefin resin particles to form a polystyrenic resin, wherein together with the styrenic monomer being used at 140 to 600 parts by weight to 100 parts by weight of the polyolefin resin particles, the average thickness of the surface layer observed in scanning electron micrographs obtained by immersing sections cut into halves through the center from the surface of the resin particles in tetrahydrofuran followed by extracting the polystyrenic resin component and capturing cross-sections of said sections is 15 to 150 μm, and the volatile blowing agent is contained at 5.5 to 13.0% by weight.

The invention relates to a method for quantitatively evaluating orientation degree of short fiber reinforced composite fibers, which is characterized by selecting and determining a sectioning surface and sectioning a composite sample; acquiring a micrograph via an optical microscope or a scanning electron microscope; repainting the elliptic fiber section in the micrograph in graphic image software; extracting the lengths of long axis and short axis and an angle between the elliptic long axis and a coordinate axis in the repainted picture; calculating the direction vectors of the fibers corresponding to the ellipses according to the extracted parameters of the elliptic section; and calculating the parameters of the orientation degree of the composite along a specific direction. According to the method, the proper sectioning surface is selected so as to eliminate the calculation errors caused by condition that the same elliptic section corresponds to two fiber directions. In addition, a calculated mode given by the method considers the probability of sectioning the fibers, and the calculating result is more accurate in comparison with the calculated mode which does not consider the probability of sectioning the fibers.

The method is for the identification and characterization of structures in electron micrographs. Structures in a first image are selected. The structures have a first shape type deformed in a first direction. The selected structures are transformed to a second shape type different from the first shape type. The transformed structures of the second shape type are used to form a plurality of templates. A new structure in a second image is identified. The new structure has the first shape type. The second shape type structure of each template is deformed in the first direction. It is determined which template is a preferred template that best matches the new structure.

The invention provides a lithium ion battery positive electrode material with a stable high temperature performance. The material at least contains three metallic elements: nickel, cobalt and manganese. The median diameter of the material is measured to be greater than 2 micrometers by a laser particle size method, and through analysis of a scanning electron micrograph, the particle appearance of the material is in the form of single crystal particles rather than secondary balls aggregated by small particles. And the positive electrode material has a specific surface area less than 0.7sqm / g. The invention also provides a lithium ion battery using the material provided in the invention. The lithium ion battery of the invention has the characteristics of high volumetric specific energy and good high temperature performance.

Amorphous steel composites with enhanced mechanical properties and related methods for toughening amorphous steel alloys. The composites are formed from monolithic amorphous steel and hard ceramic particulates, which must be embedded in the glass matrix through melting at a temperature above the melting point for the steel but below the melting point for the ceramic. The ceramics may be carbides, nitrides, borides, iron-refractory carbides, or iron-refractory borides. An optical micrograph of such a composite including niobium carbide particulates is shown in FIG. 2A. The produced composites may be one of two types, primarily distinguished by the methods for embedding the ceramic particulates in the steel. These methods may be applied to a variety of amorphous steels as well as other non-ferrous amorphous metals, and the resulting composites can be used in various applications and utilizations.

Anti-reflection glass, of a smooth and smooth tact, with an aspect that does not reflect light and pleasant at sight and glass products made therefrom are disclosed and described. Such products may in some aspects have characteristics defined by values of transmittance, absorbance, reflectance, roughness and a series of micrographs realized with a microscope of atomic force to see the morphology and structure of the anti-reflection glass.

The invention relates to a material for producing a slab of semiconductor chip, a preparation method and an application thereof. The material for producing the slab of semiconductor chip disclosed in the invention has s sandwich structure, wherein, a middle layer of the sandwich structure is composed of a semiconductor chip to be examined, layers at two sides of the sandwich structure are composed of Si substrate wafers, a binder used for binding inorganic nonmetallic materials is adopted to bind the middle layer and the layers at two sides of the sandwich structure. The invention further provides the preparation method for preparing the material for producing a slab of semiconductor chip, and the application of the material for producing a slab of semiconductor chip in producing the slab of semiconductor chip. The material for producing the slab of semiconductor chip prepared by the method disclosed in the invention has good observation effect of electron micrographs, and can be prepared without mold or resins. Because section area of grinding and polishing is small, the consumption of materials in grinding and polishing is reduced, the production time of a sample is short, the production cost of the sample is low, and wastes in the preparing process can be minimized.

Embodiments of the present invention relate to a method for generating a microscopy representation of a three-dimensional sample having a lateral extension in the x and y directions. The method has the following steps: a) arranging the flat three-dimensional sample on a positioner; b) recording the sample by means of an imaging device to obtain a first microscopy picture of the sample having a first section; c) altering the perspective onto the two-dimensional sample in the z direction; d) recording the sample by means of the imaging device to obtain a second microscopy picture of the sample having a second section; e) determining change information which allows drawing conclusions as to the change in perspective in the z direction, using a difference between the first and second microscopy pictures; and f) merging the first and second microscopy pictures while considering the change information to obtain the microscopy panoramic representation.

Anisotropic contrast methodology in combination with use of sample investigating polarized electromagnetic radiation to provide Jones or Mueller Matrix imaging data corresponding to areas on samples.