40 results about "Microphotograph" patented technology

The invention relates to a binary copolymerized polyacrylonitrile-based carbon fiber spinning solution and a preparation method thereof. The spinning solution is prepared by taking dimethyl sulfoxide as a solvent, azodiisobutyronitrile as an initiator and acrylonitrile and itaconic acid as polymer monomers. The spinning solution is subjected to wet spinning, coagulating and molding, coagulation bath drafting, water washing, hot water dragging, oil coating, drying and compacting, saturated pressurized steam drafting, steam shaping and after-treatment, thereby obtaining a polyacrylonitrile protofilament. According to the testing, the monofilament tensile strength of the polyacrylonitrile protofilament is from 6.0 to 6.7 CN / dtex; the tensile modulus is from 100 to 110 N / dtex; the elongation at break is from 13.5 to 14.6%; the boiling water shrinkage is from 6.0 to 6.5%; the oil content rate is from 0.6 to 1.0%; and the fineness is 1.152 to 1.176 dtex. Under the observation of a microphotograph, the protofilament is round and bright in cross section and free of generating pores and holes. Based on the testing of preoxidation and carbonization, the strength of carbon fibers is from 3.8 to 4.2 GPa.

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 provides a method for making a hyacinth root tip chromosome slice, which comprises the following steps: carrying out the low-temperature preprocessing by adopting a 1g / L colchicin solution; fixing by a Carnoy fixing solution; dissociating for 10 minutes by utilizing 1mol / L hydrochloric acid in a 60 DEG C water bath and rinsing by utilizing distilled water which is added with a small amount of NaOH; cutting the root tip into two parts along the longitudinal direction; dyeing for 10 minutes by utilizing a carbor fuchsin dyeing agent; rinsing by utilizing the distilled water after dyeing; making the slice by utilizing a tabletting method; and carrying out the microscopic examination and microphotograph under an Motic microscope. The method for making the slice provided by the invention has the advantages of simpleness and convenience in operation, uniform chromosome dispersion and shallow background; the number of chromosomes is easy to count; and the chromosome number accuracy which is obtained by adopting the slice making method provided by the invention is high.

A coated cutting tool insert consisting of a substrate comprising cemented carbide, cermet, ceramics, steel or cubic boron nitride having deposited thereon a coating of a total thickness of a maximum of 60 [mu]m comprising one or more layers comprising a wear resistant layer of alpha-Al2O3 of a thickness of 1 to 45 [mu]m deposited by chemical vapour deposition (CVD), wherein when observed in a SEM microphotograph of a cross section of the alpha-Al2O3 layer, the alpha-Al2O3 layer comprises at least two portions, a first thickness portion and a second thickness portion immediately on top of the first thickness portion, the first thickness portion having an essentially columnar alpha-Al2O3 grain structure, and at the transition from the first thickness portion to the second thickness portion the grain boundaries of at least 1 out of 25 neighbouring grains, preferably of at least 5 out of 25 neighbouring grains, more preferable of at least 15 out of 25 neighbouring grains, of the alpha-Al2O3 grains undergo a directional change into a direction that is essentially perpendicular to the grain boundaries in the first thickness portion, wherein essentially perpendicular includes a directional change of 90 + / - 45 degrees, preferably 90 + / - 30 degrees.

The present invention relates to a thermoplastic resin composition comprising a thermoplastic resin and hollow carbon fibrils dispersed in the thermoplastic resin, the hollow carbon fibrils being present in an amount of 0.1 to 20% by weight based on the total weight of the composition, comprising independent fibrils and agglomerated fibrils, and having such a dispersing condition, when represented by indices based on the measurement of transmission electron microphotograph, that the ratio of the independent fibrils to the agglomerated fibrils lies within the range of 8 / 92 to 40 / 60 and the independent fibrils have an average length of 20 to 200 nm.

A thermal transfer receiving sheet comprising a sheet-like support having sequentially formed on at least one surface thereof a hollow particle-containing intermediate layer and an image receiving layer, wherein the hollow particles have an average particle diameter of 0.2 to 35 μm and a hollow percentage by volume of 30 to 97% and the printing smoothness (Rp value) on the surface of the thermal transfer receiving sheet, as measured by using a Microtopograph under an applied pressure of 0.1 MPa 10 m-seconds after the initiation of pressure application, is 1.5 μm or less. A production method of the thermal transfer receiving sheet is also provided.

Disclosed herein is a methodology, including the method and system to enable the same, for detection and classification of microscopic particles by an image analysis approach employing grayscale pixel intensity contour data generated from microphotographs, identifying discrete particles therein by applying user-defined filters, and outputting a statistically-processed report of the outcome thereof.

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.

The invention relates to a remote real-time image acquisition and three-dimensional reconstruction system of water area plankton. The remote real-time image acquisition and three-dimensional reconstruction system comprises a remote server and an underwater image acquisition system, wherein the remote server and the underwater image acquisition system are connected through a wireless network; and the underwater image acquisition system comprises a Linux operating system, an S3C6410 board, an onboard external interface, acquisition equipment, an USB (Universal Serial Bus) module and a 3G (The 3rd Generation Telecommunication) module, wherein the acquisition equipment is arranged in a water area to be detected, the S3C6410 board is independently connected with the Linux operating system and the onboard external interface, the onboard external interface is connected with the USB module and the 3G module, and the USB module is connected with the acquisition equipment. Research personnel can dynamically monitor the plankton in real time in virtue of a microscopic camera, a wireless network and a PC (Personal Computer), transmit obtained data to the server through the wireless network, simultaneously archive a microorganism microphotograph and carry out three-dimensional reconstruction on the plankton to realize the three-dimensional presentation of the plankton.

The invention belongs to the technical field of the genetic engineering and cell engineering, and particularly relates to a usage of an AAV-DJ type adeno-associated virus in-vitro efficient infectionorganoid. Commercial AAV-DJ type adeno-associated viruses are used for performing in-vitro planarization infection on the organoids of a human and a mouse, after the infection, the organoids of planarization culture is cultured for 72 hours again by using a 3D culture system. Finally, efficiency of infection of the organoids is detected by using a fluorescence confocal microphotograph technology in combination with a flow cytometry. It is indicated from a result that the AAV-DJ viruses can efficiently infect the organoids of the human and the mouse in vitro, and the efficiency of infection canreach 80% or more, and is far superior to a reported organoid genetic manipulation tool. The usage solves a big problem for scholars of organoid in-vitro research, and provides a firm foundation forclinical research of hepatic regeneration.

The invention belongs to the technical field of detection methods, and particularly provides a method for measuring the percentage elongation after fracture and the percentage reduction of area afterfracture of a tensile sample. The method includes (1) putting two segments after fracture of the tensile sample into a rotary clamp in order; (3) achieving tensile sample clamping and rotation by utilizing a control cabinet, and photographing labeled-distance segments after fracture of the tensile sample in order by utilizing a microphotograph system; (3) joining the two segments, on different images, after fracture of the tensile sample to make fractures completely compatible; and (4) measuring the pixel lengths of the labeled-distance segments and the fracture, and performing conversion according to a relationship, obtained by calibration before measurement, between the pixel length and the actual dimension to obtain the minimum actual diameter dimensions of the labeled-distance segmentsand the fracture, thus obtaining the percentage elongation after fracture and the percentage reduction of area after fracture. Through the method, the percentage elongation after fracture and the percentage reduction of area after fracture can be measured through simple operation under the premise of not destroying the fracture, and the method is particularly suitable for measurement of toxic harmful failure tensile samples.

The invention discloses a method for detecting paint film coating uniformity of an enameled wire and belongs to the technical field of enameled wire paint film coating quality detection. The detectionmethod comprises the following steps: positioning and putting a plurality of intercepted grinding and polishing line samples into a forming mold; pouring the prepared pouring curing liquid into a forming mold to form a cured sample; grinding and polishing the cured sample to obtain an observation sample; carrying out microscopic observation on the cross section of the grinding and polishing sample; software measures the thicknesses of paint films at a plurality of positions in the shot micrograph and calculates the eccentricity; the invention has the following beneficial effects. According tothe detection method, the perpendicularity of the enameled wire grinding wire sample during glue pouring and the interval arrangement of a plurality of enameled wires are ensured; the real coating quality of the enameled wire paint film is accurately reflected, the reliability of the detection result is improved, the quality of the paint film is evaluated in a unified manner, the detection efficiency of the paint film coating quality is improved, and technical guidance is provided for the quality defect of paint film coating.

The invention relates to a cross-scale full-automatic occluded foreign substance quick analyzing instrument and a method based on a microphotographing matrix. The analyzing instrument comprises a microphotographing matrix system, a high precision three-dimensional numerically controlled worktable, a computing working group and a control and data processing system. A to-be-tested sample is a largedimension metal member, the microphotographing matrix system can be movably fixed to the Z axis of the high precision three-dimensional numerically controlled worktable up and down, and the computingworking group controls the displacement of the high precision three-dimensional numerically controlled worktable according to the control and data processing system to move the position of the to-be-tested sample step by step, so that the microphotographing matrix system traverses to-be-tested surfaces of all to-be-tested samples to achieve full-scale microphotograph of the to-be-tested samples soas to carry out occluded foreign substance searching, area computing, positioning, shape graded amplification and statistic distribution analysis. By combining the microphotographing matrix with highspeed operation, the scanning dimension of the sample is large, the precision is high and the speed is high. The analyzing efficiency of the large scale sample occluded foreign substances is improvedobviously.

The invention discloses a method for detecting the microscopic moisture content of wood. The method comprises the steps that S1 a wood sample is prepared, and the average moisture content and the absolute dry density of the wood sample are measured; S2 the volume content of water in the wood sample is calculated; S3 panoramic scanning or photographing is carried out on the wood sample to generatea full-field digital microphotograph with one annual ring; the acquired microphotograph is divided into several parts equally; the cell cavity area in each picture is screened, and the porosity of thecorresponding wood part of each picture is calculated; S4 the acquired porosity data are used to fit a equation to acquire the quantitative characterization equation of the porosity in the wood annual ring; and S5 the microscopic moisture content of wood is calculated by using the volumetric content of water and the quantitative characterization equation of the porosity of the wood annual ring, so as to acquire the result of the microscopic moisture content of wood. The method provided by the invention has the advantages of wide applicability, low cost, simple and fast process steps, and canbe used to accurately measure the microscopic moisture content of wood.

The invention provides a cashmere and wool fiber identification method based on local characteristics and a word bag model, comprising the following steps: firstly, carrying out sample preparation andimage acquisition, and then preprocessing the image; Extracting local features from the fiber image, wherein the local features comprise image feature point detection, key point positioning, key point direction determination and key point description; Constructing a visual dictionary and image description, including generation of visual words and the visual dictionary, image description and spatial pyramid matching; And finally, generating a classification recognizer for performing binary classification recognition on the cashmere and wool fiber micrographs. The method provided by the invention overcomes the defects in the prior art, and can automatically extract and identify the morphological characteristics of the fiber surface, thereby objectively, accurately and quickly identifying the cashmere and wool fibers, and the method is high in identification accuracy and easy to operate.

A nondestructive inspection device (or method) is basically configured such that a laser beam (1300 nm) (3, 53) is irradiated on a surface (or back) of a semiconductor device chip to scan. Due to irradiation of the laser beam, a defect position is heated to cause a thermoelectromotive current, which induces a magnetic field. A magnetic field detector (5) such as SQUID (55) detects a strength of the magnetic field, based on which a scan magnetic field image is produced. A display device (7) superimposes the scan magnetic field image on a scan laser microphotograph on a screen, so it is possible to perform defect inspection on the semiconductor device chip. Incidentally, a semiconductor device wafer (40) is constructed to include a thermoelectromotive force generator (21) and its wires (20a).

[Problems] To provide a multilayered structure which eliminates the need of providing any particular adhesive layer, enables the ethylene / vinyl alcohol copolymer to exhibit excellent oxygen-barrier property to a sufficient degree, and can be effectively used even when a polyolefin resin is used as the inner and outer layers.[Means for Solution] A multilayered structure having an adhesive intermediate layer of a blend of an ethylene / vinyl alcohol copolymer (A) and a maleic anhydride-modified olefin resin (B) between an inner layer and an outer layer, the adhesive intermediate layer containing the ethylene / vinyl alcohol copolymer (A) and the maleic anhydride-modified olefin resin (B) at a weight ratio of 4:6 to 8:2, the phase structure of the adhesive intermediate layer being a sea-island structure with the maleic anhydride-modified olefin resin (B) as the sea or being a bicontinuous phase, and the adhesive intermediate layer having a standard deviation of not less than 65 when a contrast profile of the ethylene / vinyl alcohol copolymer (A) and the maleic anhydride-modified olefin resin (B) in the adhesive intermediate layer near the interface thereof is numerically expressed on a scanning electron microphotograph of the cross section of the multilayered structure in the direction of thickness by using an image analysis software.

In order to overcome the limitation of an existing reverse analysis method on the applicability of a large-scale integrated circuit, the invention provides a digital signal processor layout distribution positioning method, which comprises the following steps of: 1, acquiring an active region dyeing photograph of a DSP (Digital Signal Processor) chip; 2, if the DSP chip adopts an inverted packagingstructure, thinning and polishing the substrate of the DSP chip; 3, dividing the DSP chip into different modules; 4, positioning a quadrant where each module is located; 5, marking each position coordinate and time information for generating the single event effect; 6, marking all single event effect data points on the original layout photo of the DSP chip according to position coordinates; and 7, confirming the layout positioning of each module according to the acquired single event effect position coordinates, and drawing the position of each module by using a drawing tool in combination with the active region dyeing micrograph.

The invention discloses a method for preparing nano-diamond on a sodium chloride substrate. The method comprises the following step: preparing nano-diamond on the sodium chloride substrate by virtue of a plasma-enhanced chemical vapour deposition technology under a methane and hydrogen atmosphere. During the reaction process, the corresponding flow ratio of methane gas to hydrogen is (10-15):(75-85), the unit is millilitre per minute (sccm) in a standard state, and the temperature ranges from 750 to 850 DEG C. According to the method disclosed by the invention, hydrocarbon gases are used as carbon source gases, and reasonably proportioned with hydrogen to obtain well-crystallized nano-diamond, pre-treatment does not need to be carried out on the substrate, the nano-diamond hardly contains other carbon-based impurities, a very simple method for preparing nano-diamond is provided, and a novel growth mechanism is put forwards. The transmission electron microphotograph of the experiment finished product is shown in figure 1.

The invention discloses a method for rapidly detecting silicon crystal defects on a semiconductor wafer substrate. The method includes the steps: cutting a semiconductor wafer to prepare a test sample; soaking the test sample into hydrofluoric acid solution to strip all material layers except for polycrystalline silicon on the substrate; etching and removing the polycrystalline silicon on the substrate by mixed acid solution; soaking the substrate into 'smart etching' solution to scratch the silicon crystal defects on the substrate; checking the silicon crystal defects on the substrate and taking optical microphotographs or scanning electron microphotographs. A complete test sample treatment method is built, particularly, before the silicon crystal defects on the substrate are scratched bythe 'smart etching' solution, all materials on an upper layer of the silicon substrate are thoroughly stripped, so that the substrate is fully naked and then subjected to 'smart etching', good etching effects are achieved, artificial defect illusion caused by incomplete stripping of the materials on the upper layer of the substrate is avoided, and accurate and good-repeatability scratching results are acquired.

The microstructure mold core making technology is applied in the duplication formation of plastic and metal products with microstructure, and includes one mold structure and at least one mold core assembly with microstructure or duplicated pattern set inside the mold. The mold core assembly includes one mold core body and one connected metal sheet with microstructure. The microstructure is first transferred to the metal sheet via yellow light microphotograph and electroforming, and the metal sheet is then jointed with the mold core for large-scale duplication production. The said technological process can make complicated pattern or multiple mold structure on one transferring plate to raise the production efficiency greatly. The present invention is one combination of available apparatus and future technology.

The invention relates to a teaching instrument for amplifying micro characters or objects, namely a classroom demonstration display amplifier. The classroom demonstration display amplifier consists of a lens, a microphotograph amplifier, a definition adjusting button, a bracket, a photographing and amplifying adjustor, a microphone, a display platform, a display and the like. The classroom demonstration display amplifier is characterized in that: the microphotograph amplifier and the microphone are electrically connected with the display; the microphotograph amplifier is arranged on the bracket; the bracket is fixed on a shell of the display; the photographing and amplifying adjustor for adjusting the size of an amplified object is arranged on the bracket; and the display platform for holding the amplified object is arranged above the display. According to the classroom demonstration display amplifier, the reading scales, circuit diagrams and the like of micro objects such as a diode or a universal meter can be amplified, so that students can see clearly, therefore the classroom demonstration display amplifier is a good helper for a teacher during teaching, and the effect of a classroom can be greatly improved; and the classroom demonstration display amplifier is particularly suitable to be used in rural schools and the like.

A nondestructive inspection device (or method) is basically configured such that a laser beam (1300 nm) (3, 53) is irradiated on a surface (or back) of a semiconductor device chip (4) to scan. Due to irradiation of the laser beam, a defect position is heated to cause a thermoelectromotive current, which induces a magnetic field. A magnetic field detector (5) such as SQUID (55) detects a strength of the magnetic field, based on which a scan magnetic field image is produced. A display device (7) superimposes the scan magnetic field image on a scan laser microphotograph on a screen, so it is possible to perform defect inspection on the semiconductor device chip. Incidentally, a semiconductor device wafer (40) is constructed to include a thermoelectromotive force generator (21) and its wires (20a).

A tool for monitoring a part condition includes a computerized device having a processor and a memory. The computerized device includes at least one of a camera and an image input and a network connection configured to connect the computerized device to a data network. The memory stores instructions for causing the processor to perform the steps of providing an initial micrograph of a part to a trained model, providing a data set representative of operating conditions of the part to the trained model, and outputting an expected state of the part from the trained model based at least in part on the input data set and the initial micrograph.

The invention provides a microphotograph printing machine. The machine comprises a control box. The control box is provided with a touch screen used for controlling the control box. The control box is provided with an operation indication lamp. The operation indication lamp is electrically connected to the touch screen. A bottom of the control box is provided with a photograph outlet. An ink box is arranged in the control box. In the invention, through using a principle of a printer, drip-type ink is adopted and photographic paper with a common price is used so that the ink can be saved and usage is convenient.

The invention provides a method and a device for acquiring a gas-liquid ratio of a fluid inclusion. The method comprises the following steps: respectively acquiring display areas of a liquid phase part and a gas phase part in a micrograph of a target fluid inclusion in a target region by applying a Photoshop tool; obtainig the gas-liquid ratio of the target fluid inclusion corresponding to the microphotograph according to the area ratio corresponding to the microphotograph and the display area of the liquid phase part and the display area of the gas phase part, wherein the area ratio corresponding to the microphotograph is the ratio of the actual area to the amplified display area; and outputting the gas-liquid ratio of the target fluid inclusion corresponding to the micrograph, so as to determine the maturity of the target hydrocarbon fluid corresponding to the target fluid inclusion based on the gas-liquid ratio of the target fluid inclusion. The accuracy and convenience of obtaining the gas-liquid ratio of the inclusion can be improved, and then the accuracy of obtaining the maturity of the target hydrocarbon fluid is improved.