653 results about "White Spots" patented technology

Disclosed is a sputtering target that can suppress the occurrence of anomalous discharge in the formation of an oxide semiconductor film by sputtering method and can continuously and stably form a film. Also disclosed is an oxide for a sputtering target that has a rare earth oxide C-type crystal structure and has a surface free from white spots (a poor appearance such as concaves and convexes formed on the surface of the sputtering target). Further disclosed is an oxide sintered compact that has a bixbyite structure and contains indium oxide, gallium oxide, and zinc oxide. The composition amounts (atomic %) of indium (In), gallium (Ga), and zinc (Zn) fall within a composition range satisfying the following formula: In/(In+Ga+Zn)<0.75

A clarifying agent composition comprises a diacetal powder and an organosilane treated fume silica having a pH value of 5.5 to 8, measured in a 4% w/w dispersion in 1:1 mixture of water-methanol. The diacetal has the general structure formula (I), (II), (III), (IV) or (V),

This invention also intents to provide a new manufacturing method for preparing superfine powdery diacetal composition with high dispersion characteristic the use of said compositions for preparing polyolefin plastic article without the visible white spots on the surface of the corresponding article.

In a CMOS solid-state imaging device, to restrain the occurrence of white spots and dark current caused by pixel defects, and also to increase the saturation signal amount.

Adjacent pixels 2A and 2B are separated by element isolation portion 82 formed of a diffusion layer 43 and an insulating layer 44 thereon, and the insulating layer 44 of the element isolation portion 82 is formed in a position equal to or shallower than the position 45j of a pn junction on the side of accumulation layer 39 of a photoelectric conversion portion constituting a pixel.

A backlight unit is disclosed which is capable of diffusing light emitted from a light source uniformly and suppressing white spot phenomenon. The backlight unit includes a light guide panel having a first surface and a second surface opposite to the first surface, a concaved light receiving region formed on the first surface, a light intensity adjusting recess formed on the second surface, a light intensity adjusting sheet disposed on the light intensity adjusting recess and the second surface around the light intensity adjusting recess. The backlight unit includes a substrate on which a plurality of light emitting devices are disposed, a plurality of luminous flux control members which are disposed on the substrate corresponding to the light emitting devices such that the light from the light source is uniformly transmitted upward, and a shade layer which is disposed between the luminous flux control members to reflect a portion of the light emitted through the luminous flux control member.

The invention discloses a stainless steel pickling passivation cream with high transparency and high viscosity. The stainless steel pickling passivation cream comprises the following components by the weight percentage: 10-20 parts of a corrodent, 20-40 parts of a passivating agent, 20-40 parts of an inorganic filler, 2-6 parts of a corrosion inhibitor, 0.5-2 parts of a thickening agent, and 10-35 parts of a viscosity regulator. The stainless steel pickling passivation cream with high transparency and high viscosity has the appearance with higher transparency and viscosity, and thus the progress of polishing is convenient to observe; the stainless steel pickling passivation cream is suitable for any electric welded or argon-arc welded stainless steel welded scars, stainless steel equipment and workpieces, and has more efficient polishing effects and more rapid polishing rate; and the stainless steel pickling passivation cream does not corrode basal materials, is high in brightness, has no white spots and pocking marks, and besides can reduce the cost of the pickling passivation cream.

The high-yield breeding method of Japanese prawn includes controlling white spot of Japanese prawn with two-layer latent-sand aquiculture pond, convective circulating sand washing via pneumatic lift of water, automatic dirt collection and drainage via horizontal circulating flow, through and feeding live feedstuff through special treatment, applying prawn disease treating chemical powder and water sterilizing medicine, using transparent plastic house and hibernation via using solar energy completely. The aquiculture pond is downwards inclined towards the center and has water inlet and drainage holes, dirt drainage hole, dirt drainage well, support under the pond bottom, porous plate, screen, sand layer and spawn escape preventing net.

The invention discloses an improved smoke removal purifier, which comprises a purification tower, wherein the purification tower comprises an oxidation pond containing absorption solution and an air bubbling component, and a smoke removal purification section containing at least two groups of absorption solution sprinkling components and at least one group of defoaming components; and particularly, the purification tower also comprises a group of washing sprinkling components for purifying flue gas and at least one group of flue gas washing section of a flue gas defoaming component. The washing section is connected with a washing circulating tank, and washing solution is also used for flushing the defoaming components of the smoke removal purification section. Thus, slurry droplets carried by the flue gas after purification are washed in the flue gas washing section and enter the washing solution, the concentration of the slurry droplets is greatly diluted and reduced, even certain droplets are carried out by the flue gas in the flue gas washing section, obvious white spots and equipment corrosion are hardly generated by the droplets, and the problem of the content increment of sulfate rain and smoke dust is solved.

Disclosed is a sputtering target having a good appearance, which is free from white spots on the surface. The sputtering target is characterized by being composed of an oxide sintered body containing two or more kinds of homologous crystal structures.

A display device that lends itself to easy repair of a defective pixel is presented. The device includes: a thin film transistor formed having a first electrode and a second electrode, the second electrode having a first part facing the first electrode, a second part that protrudes from the first part and having a first width, and a third part that extends from the second part and having a second width which is different from the first width. The device also includes a wall encompassing the pixel electrode and a common electrode formed on the wall. In one version of the repairing process, the second part of the second electrode is coupled to the common electrode. This coupling causes electric current from the second electrode to flow to the common electrode instead of to a light emitting diode, thereby converting a white spot to a black spot.

The invention relates to a monocrystalline silicon wafer alcohol-free texturing process and a texturing additive. Firstly, a silicon wafer is placed in preprocessing liquid so as to be preprocessed for 60 s to 300 s, and the silicon wafer is then placed in texturing liquid for texturing. The monocrystalline silicon texturing process includes the steps that deionized water is heated to 70 DEG C to 90 DEG C, sodium hydroxide or potassium hydroxide is added, and monocrystalline silicon texturing corrosive liquid is acquired. When the texturing additive is adopted for texturing, isopropanol or ethyl alcohol is not needed, tiny, even and dense pyramid texturing faces can be acquired, texturing cost is reduced, and environmental pollution is avoided. The preprocessing process is added before the texturing step, the silicon wafer acquired after texturing can be cleaner, rework caused by white spot fingerprints and the like can be reduced, and certain practical value is achieved.

The invention relates to a white balance processing method directed towards an atypical-feature image. The method comprises the following steps: (1) acquiring the brightest spot RGB (Red, Green and Blue) information of a frame of images as well as an RGB mean through a Camera Link industrial camera; (2) scanning the frame of video images, setting a white spot brightness threshold value and an RGB channel difference threshold, and determining whether current images contain a white area or not and color is rich or not; (3) performing color space conversion on the current images if the current images are determined that the white region is not contained and the color is not rich, and respectively calculating an average chromaticity Cw_ave of a reference point of a perfect reflection method and an average chromaticity Ch_ave of a reference point of a gray world method; and (4) calculating an average chromaticity Cw_ave obtained by the perfect reflection method and an average chromaticity Ch_ave obtained by the gray world method directed towards the current images, and performing white balance correction combined with two classic algorithms on the current frame of images by using the ratio of the Cw_ave and (the Cw_ave plus the Ch_ave) as an adjustment factor K. The method can be realized by using the recourses of an FPGA (Field Programmable Gata Array) internal logic unit, an internal memory, a multiplier and the like.

A solid-state image pickup device 10 has an arrangement in which a second conductivity type semiconductor region 14 is formed on the surface of a first conductivity type electric charge accumulation region 13 of a light-receiving sensor portion, a shallow trench isolation layer 20 formed of an insulating layer is buried into a trench formed on a semiconductor substrate 11, the shallow trench isolation layer 20 is composed of an upper wide portion 21 and a lower narrow portion 22 and a second conductivity type semiconductor region 23 is formed around the lower narrow portion 22 of the shallow trench isolation layer 20. The solid-state image pickup device can suppress the occurrence of a dark current and a white spot, it can produce an image with high image quality and it can sufficiently maintain a sufficiently large amount of electric charges that can be handled by the light-receiving sensor portion.

Disclosed is a packing material for a sheet recording material, which contains a paper material comprising an alkyl ketene dimer and cationic starch, the extraction pH of the paper material being within the range of 6.5 to 9.0. The packing material of the present invention suppresses generation of paper dust and prevents occurrence of white spot defect in recorded images on a sheet recording material even when the packing material is not subjected to surface treatment.

The present invention proposes a rework process for producing white spot monocrystalline silicon wafers. The process steps include: performing high temperature treatment on the white spot single crystal silicon wafers to volatilize the remaining impurities on the surface of the white spot single crystal silicon wafers; The monocrystalline silicon wafer with white spot is subjected to a texturing process to remove the white spot on the surface of the single crystal silicon wafer. The rework process of the white spot monocrystalline silicon wafer provided by the present invention is to carry out high temperature treatment on the white spot single crystal silicon wafer to volatilize the remaining impurities on the surface, and the white spot single crystal silicon wafer from which impurities are removed will be used in the subsequent texturing process It is conducive to corrosion, can effectively remove white spots on the surface of single crystal silicon wafers, and greatly improves the yield rate of reworked silicon wafers.

The invention relates to a method for studying the structural diversity of a daqu bacterial community, i.e. the denaturing gradient gel electrophoresis (DGGE) technology, which belongs to the technical field of microbial ecology and mainly comprises the following steps that: 1), daqu genomic deoxyribonucleic acid (DNA) is directly extracted; 2), bacterial universal primers are selected, and specific DNA fragments in the bacterial ribosome DNA are amplified; 3), polymerase chain reaction (PCR) products are separated through DGGE; 4), corresponding strips of microbes in the DGGE fingerprint map are recovered in a gel cutting way; 5), PCR is carried out again, products are connected to a T carrier, the blue and white spot screening is carried out, and positive clone verification is carried out; and 6), the species information of the corresponding microbes of the DGGE strips is obtained through the sequence test. The method does not rely on the molecular biology technology of the traditional culture method, has the characteristics of sensitivity, convenience and accuracy and solves the difficult problems to study some microbes incapable of being cultured or difficult to culture, and the method provides the technical basis for the verification of the daqu bacterial community structure and the discovery of new wine brewing microbes or functional microbes.

The invention relates to a solar monocrystalline silicon cleaning solution. The solar monocrystalline silicon cleaning solution includes, by weight, 1% to 5% of 30% of hydrogen peroxide solution, 0.05% to 0.30% of potassium hydroxide and 94.95 % to 98.95% of pure water. According to the solar monocrystalline silicon cleaning solution, strong oxidizing property of hydrogen peroxide and corrosive effect on oxide films by OH- are utilized, organics, the oxide films and dirts like contaminants deposited in the oxide films can be removed from the surface of silicon effectively, cleanliness of the surface of silicon is improved, white spots are prevented during flocking, and chromatic aberration is also prevented from being produced. Furthermore, the invention relates to a cleaning method of the solar monocrystalline silicon.

The invention discloses a processing method for eliminating illumination unevenness of a face image, and overcomes the defect that the illumination unevenness influences the face identification rate. The invention adopts the technical scheme that the processing method comprises the following steps: under the support of a computer and matched image processing software, adjusting an image threshold value by preprocessing gray values of pixel points, calculating dimension values of prescribed neighboring domain matrixes 3*3 and 5*5 of the pixel points of the image, overlapping and fusing the dimension values without weight, modifying and replacing the gray values of the pixel points in a white spot area by using centerline symmetry, finally carrying out mean-variance normalization calculation for a set of the modified image pixel points, converting the gray values of the pixel points into a gray level range of [0, 255] to form the face image, and displaying or outputting the face image. The method eliminates the influence of illumination change on face identification, and effectively improves the robustness of the illumination on the face identification so as to achieve high identification rate.

The present invention concerns a multimodal polyethylene composition comprising a base resin comprising three ethylene homo- or copolymer fractions (A), (B) and (C) with different weight average molecular weight M w , wherein a) fraction (A) has an MFR 21 equal or lower than 20 g/10min, b) fraction (B) has a lower weight average molecular weight than fraction (C), c) fraction (C) has a lower weight average molecular weight than fraction (A), d) the composition has an eta 747 of 350 kPas or higher, and e) the composition has a MFR 5 of 0.15 g/10min or higher and a white spot area of 1 % or below. Furthermore, the present invention relates to a process for the production of such a composition as well as to the use of such a composition for the production of a pipe, for moulding applications, and wire and cable applications.

The invention discloses a vacuum infusion and flow guide system and an infusion and flow guide method for a reinforcing plate of a wind turbine blade. The vacuum infusion and flow guide system comprises a reinforcing plate mold (1), a core material (2) mounted on the reinforcing plate mold (1), a flow guide net (3) laid on the glass fiber upper skin of the core material (2) and a flow guide groove omega tube (4) laid on one side of the reinforcing plate mold (1), wherein a glue injection port (5) is formed in the flow guide groove omega tube (4), a spiral tube (6) is mounted on the opposite side of the reinforcing plate mold (1), a suction port (7) is connected to the spiral tube (6), and bi-directional shallow slots (2-1) are formed in the upper surface and the lower surface of the core material (2). The vacuum infusion and flow guide system is reasonable in structural design, resin flows on the upper surface and the lower surface uniformly and isocratically through opposite side drainage, the technical defect of white spots formed on the surface due to the fact that local annular loop is formed because glue solution flows downwards to the lower surface can be overcome, the mechanical strength of the prepared reinforcing plate of the blade is high, the firm degree is high, and the service life is long.

The invention discloses a fluorescence quantitative PCR (Polymerase Chain Reaction) detection method for a porcine transmissible gastroenteritis virus gene S and a primer thereof in the technical field of biotechnology. The method comprises the following steps of: cloning a PCR amplification target segment identified as a positive PCR product to a vector pMD18-T, transforming to a competent cell DH5alpha, selecting positive clone by screening blue and white spots and identifying sequencing; extracting a positive recombinant plasmid, quantifying by using an ultraviolet spectrophotometer, diluting a standard product series by 10 times of gradient until the final concentration is 1.0*10<3>-1.0*10<11> copies/mL, undergoing a fluorescence quantitative PCR by taking the standard product series as a template, and establishing a fluorescence quantitative PCR standard curve; and extracting virus RNA (Ribonucleic Acid) of a clinical excrement sample, undergoing a fluorescence quantitative PCR, and calculating the content of viruses in the sample according to a result and the standard curve, wherein the sequences of the primer are sequence 1 and sequence 2. The method and the primer have theadvantages that: a fluorescent probe does not need to be designed additionally, the cost is lowered, operation is easy and convenient, and detection can be completed within 2 hours. The detection method and the primer are suitable for any fluorescence quantitative PCR instrument, and can be applied to the detection of large-scale and high-flux samples.

The invention discloses a large-scale composite wind blade resin film infusion forming process which comprises the following steps: 1) preparing a mould; 2) laying a resin film; 3) laying a reinforcement material; 4) laying accessaries; 5) sealing a vacuum bag; 6) vacuumizing and heating; and 7) solidifying, demoulding and trimming. The forming process solves the problems of bubbles and white spots in the glue injection process so as to greatly reduce rejection ratio; and the wind blades manufactured are even in quality distribution and good in quality stability and process repeatability, and the service life and safe reliability of the blade are improved greatly. In addition, the forming process avoids a glue injection system and a glue mixer, so that the investment cost is reduced and the manufacturing cycle is shortened.