433results about How to "Uneven distribution" patented technology

A device, system and method for anchoring a device to a stomach is provided. The device may be, among other things, a sensor for sensing various parameters of the stomach or stomach environment, or may be a therapeutic delivery device. The anchor of the device is constructed to resist pull out forces. An anchor has an optimal weight to surface area ratio.

Expandable sealing means for endoluminal devices have been developed for controlled activation. The devices have the benefits of a low profile mechanism (for both self-expanding and balloon-expanding prostheses), contained, not open, release of the material, active conformation to the 'leak sites' such that leakage areas are filled without disrupting the physical and functional integrity of the prosthesis, and on-demand, controlled activation, that may not be pressure activated.

The invention relates to a preparation method of a transition metal oxide / carbon-based laminated composite material. According to the preparation method, a conducting material such as metal carbide, metal nitride or metal carbonitride with a two-dimensional laminated structure is taken as a precursor, a gas containing oxygen elements is taken as an oxidant, and the two-dimensional conducting material is converted into the transition metal oxide / carbon-based laminated composite material by in-situ oxidation under the condition of controlling the oxidation temperature at 300-1000 DEG C and controlling the oxidation time at 1-300 min. The method disclosed by the invention has the advantages of simplicity and easiness in operation, controllable structure and morphology, controllable crystal form and electrochemical properties of metal oxides, and the like; the preparation method is environment-friendly, and nuisanceless, has no by-product, can be used for reducing the economic costs of traditional preparation methods, and can be popularized; and the transition metal oxide / carbon-based laminated composite material not only can be used as a key electrode material of a new energy storage device, but also can be used as a denitration catalyst, so that the material can be applied to the fields of environmental remediation, and the like.

In an optical sheet 10 having a prism surface 16 formed by providing unit prisms 14 on the upper surface of a transparent base material 12, a coating layer 18 is provided on the reverse surface of the transparent base material opposite to the prism surface 16, spherical beads 20 are arranged projecting from the surface of the coating layer 18 by 1 to 10 mu m in height, and the coating layer 18 is brought into contact with the flat and smooth surface 22A of the light-transmissive material 22 through the spherical beads 20 which are put between them. The spherical beads are 1 mu m or less in half bandwidth of the distribution of particle diameters and are made uniform in height projecting from the coating layer 18.

The invention discloses a graphene-latex functional high-strength protection glove and a production method thereof. The method comprises the following steps: (1) immersing a glove blank in a coagulating agent, immersing the glove blank in a graphene-latex composite liquid, and drying the immersed glove blank to obtain the glove; or (2) immersing the glove blank in the coagulating agent, drying the immersed glove blank, immersing the dried glove blank in the graphene-latex composite liquid, leaching the immersed glove blank, crimping the leached glove blank, drying the crimped glove blank, vulcanizing the dried glove blank, leaching the vulcanized glove blank, and drying the leached glove blank to obtain the glove. Compared with gloves in the prior art, the graphene-latex functional high-strength protection glove produced in the invention fully performs the advantages of high electricity conductivity, high strength, friction resistance and strong bacteriostasis of graphene, and has wide uses in the fields of the manufacturing industry, the medical industry, the chemical engineering industry and the space flight and aviation industry.

The invention discloses a melon / vegetable seedling raising organic compound substrate prepared from vinasse and a production method thereof. The volume ratio of components is vinasse:mushroom residue or vinasse:cattle manure or vinasse:marsh slag:crop straw. The production method comprises the following steps: collecting the raw materials, pulverizing, pretreating, rotting, preparing the substrate and carrying out quality inspection to obtain the melon / vegetable seedling raising organic compound substrate prepared from vinasse. The substrate disclosed by the invention has the advantages of high water retention property, favorable air permeability, abundant nutrient content and no inorganic substrate; the substrate can promote melon / vegetable seedlings to absorb and utilize water, fertilizer and air, and enhance the stress tolerance of the seedlings, thereby being beneficial to sound and full seedlings; and the substrate can completely substitute the substrate product mainly composed of grass carbon in the market. At present, the grass carbon is nonrenewable resources, and has the defects of high price and nonuniform distribution. The substrate disclosed by the invention can protect the resources and lower the seedling raising cost.

The invention relates to a method for preparing a SiO2-cellulose composite aerogel material with a one-pot method. The method comprises the following steps: taking cellulose as a raw material and dissolving the cellulose with a green alkaluria solvent; taking organic sodium silicate as a silicon source, and stirring and dispersing to obtain a uniformly mixed aqueous solution of the cellulose and the sodium silicate; combining a sol-gel method to obtain regenerated cellulose wet gel containing a silicon source; taking cellulose gel as a framework and taking inorganic acid as a reaction solvent, and inducing to generate SiO2; finally, drying through a CO2 supercritical drying process to obtain the SiO2-cellulose organic-inorganic composite aerogel. The method has the advantages that the process is simple and rapid, has high feasibility and is green and environment-friendly; the problems in an in-situ immersion method that the SiO2 has poor dispersity, low complex content, poor complex stability and the like in a cellulose porous network structure are effectively solved; the prepared inorganic-organic composite aerogel has relatively low coefficient of heat conductivity and good heat insulation performance and has good application prospect in the aspects of low-temperature cold insulation materials, middle-temperature and low-temperature heat insulation and heat preservation materials and adsorption materials.

A method for manufacturing a solid electrolytic capacitor having a capacitor element produced by the steps of: forming a dielectric coating layer on the surface of an anode body, forming a conductive polymer cathode layer on the dielectric coating layer, and forming a cathode lead-out layer on the conductive polymer cathode layer, wherein the step of forming the conductive polymer cathode layer includes an electrolytic polymerization step of forming the conductive polymer cathode layer on the surface of the anode body on which the dielectric coating layer is formed by electrolytic polymerization using an electrolytic polymerization solution containing at least a monomer to be polymerized into the conductive polymer and an ionic liquid.

The invention relates to a tool holding device comprising a tool holding body for securing, in a fixed manner, a rotary tool comprising a shaft, provided with a clamping section and a receiving opening for the shaft of the tool, a coolant feeding device for pressurized fluid, at least one coolant guiding device for guiding the coolant into a clamped tool shaft. The coolant guiding device is designed as at least one flat groove on an inner side of the receiving opening, joining to the front side on a free end of the tool holding body and directly adjacent to the tool shaft in the surroundings of the tool holding device or a coolant storing chamber and / or collecting chamber is provided in the region of the free end of the tool holding body, to which the at least one coolant guiding device joins. The coolant storing chamber and / or collecting chamber is connected by means of an annular gap to the surroundings of the tool holder device. The coolant storing chamber and / or collecting chamber and the annular gap are defined at least partially by the work shaft.

The invention discloses a non-radiative multi-component composite tungsten negative material for a microwave oven magnetron and a preparation process of the negative material. The tungsten cathode material comprises lanthanum oxide, zirconium oxide, yttrium oxide, lutetium oxide, rhenium and tungsten, wherein the mass percent of each rare-earth oxide in the tungsten electrode material is 0.5%-1.5%, the mass percent of the total rare-earth oxides in the tungsten electrode is 2%-3%, the mass percent of the alloy element rhenium in the tungsten electrode material is 1%-4%, and the tungsten accounts for the rest mass percent. The tungsten cathode material is non-radiative, excellent in thermal emission performance, excellent in high-temperature creep resistance, thermal shock resistance and sag resistance, and long in service life. The preparation method of the non-radiative multi-component composite tungsten cathode material for the microwave oven magnetron comprises the steps of solution preparation, drying, reducing, isostatic cool pressing, sintering, incipient fusion, medium-frequency induction annealing, press working, winding and mechanical straightening. The non-radiative multi-component composite tungsten negative material for the microwave oven magnetron is better in usability. When heated periodically for a long time at a high temperature, the multi-component composite tungsten wire produced by virtue of the process is capable of going through large deformational resistance, and has the sag resistance.

A trench MOSFET includes mesa regions between the trenches. The mesa regions are connected to an emitter electrode to fix the mesa region potential so that the mesa regions do not form a floating structure. P-type base regions are distributed in the mesa regions, and the distributed p-type base regions (e.g., the limited regions in the mesa regions) are provided with an emitter structure. The trench MOSFET can lower the switching losses, reducing the total losses while suppressing the ON-state voltage drop of the trench IGBT as low as the ON-state voltage drop of the IEGT, and improving the turn-on characteristics thereof. The trench MOSFET also can reduce the capacitance between the gates and the emitter thereof, since the regions where the gate electrode faces the emitter structure are reduced. The trench MOSFET can have trench gate structures set at a narrow interval to relax the electric field localization to the bottom portions of the trenches and obtain a high breakdown voltage. The trench MOSFET narrows the mesa region width between the trenches such that the portions of the n-type layer in the mesa regions extending between the trenches are depleted easily by applying a voltage of around several volts.

In an optical sheet 10 having a prism surface 16 formed by providing unit prisms 14 on the upper surface of a transparent base material 12, a coating layer 18 is provided on the reverse surface of the transparent base material opposite to the prism surface 16, spherical beads 20 are arranged projecting from the surface of the coating layer 18 by 1 to 10 mum in height, and the coating layer 18 is brought into contact with the flat and smooth surface 22A of the light-transmissive material 22 through the spherical beads 20 which are put between them. The spherical beads are 1 mum or less in half bandwidth of the distribution of particle diameters and are made uniform in height projecting from the coating layer 18.

The present invention aims to achieve both safety upon shorting by a nail penetration and safety upon overcharging.In a lithium ion secondary battery including a positive electrode, a negative electrode, and a non-aqueous electrolyte, the positive electrode includes active material particles, the active material particles include secondary particles of the lithium composite oxide, and some of the secondary particles have a crack. At least a surface layer portion of the active material particles includes element Me of at least one selected from the group consisting of Mn, Al, Mg, Ca, Zr, B, W, Nb, Ta, In, Mo, and Sn. Element Me is distributed more in the surface layer portion compared with the inner portion of the active material particles.

A particle laminated substrate and a method for manufacturing the particle laminated substrate are disclosed. The particle laminated substrate has a particle accumulation layer formed by accumulating and allowing particles to adhere onto a substrate having a surface where a graft polymer chain is present in which either terminal of the polymer is bonded to the surface of the substrate, by means of an electrostatic accumulating phenomenon, such that a particle density in the vicinity of the surface of the particle accumulation layer is higher than a particle density in the vicinity of the substrate.

A lithium ion secondary battery is provided including a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes active material particles. The active material particles include secondary particles of a lithium composite oxide, and some of the secondary particles have a crack. At least a surface layer portion of the active material particles includes element Me of at least one selected from the group consisting of Mn, Al, Mg, Ca, Zr, B, W, Nb, Ta, In, Mo, and Sn. Element Me is distributed more in the surface layer portion compared with an inner portion of the active material particles.

The invention discloses a falling film evaporator with gas-liquid separating and membrane-distributing functions, which comprises at least two layers of film distributors with a gas-liquid separation function, wherein the first layer of film distributor is connected with a refrigerant inlet pipe, the second layer of film distributor is positioned below the first layer of film distributor, and at least one group of exhaust pipes are arranged between the second layer of film distributor and the first layer of film distributor. The invention has the advantages that: at least two layers of film distributors are arranged in the horizontal pipe falling film evaporator, a refrigerant is firstly subjected to effective gas-liquid separation and uniformly distributed on the outer walls of the exhaust pipes in the evaporator, thus the influence on heat exchange due to the gas phase in the refrigerant can be avoided, phenomena of local aggregation and local dryness due to nonuniform distribution of the refrigerant in the exhaust pipes can be effectively avoided, the heat exchange efficiency is effectively increased, and the purpose of saving energy is achieved.

A light emitting device having a wavelength converting member for absorbing light from a pumping light source and converting its wavelength. Assuming a wavelength where the light from the pumping light source has a maximum energy intensity is a first wavelength, a wavelength where the light from the wavelength converting member has a maximum energy intensity is a second wavelength, a wavelength between the first and second wavelengths where emission spectrum of the light emitting device has a minimum energy intensity is a third wavelength, and a wavelength of 650 nm is a fourth wavelength, the ratio of energy intensity between the first and third wavelengths is 100:15-150, and the ratio of energy intensity between the first and fourth wavelengths is 100:45-200.

A photographing optical lens system includes at least six lens elements, wherein the photographing optical lens system includes at least one cemented lens group cemented by two of the lens elements adjacent to each other. The at least one cemented lens group includes, in order from an object side to an image side, a first cemented lens element, a cemented layer and a second cemented lens element. The first cemented lens element has a cemented image-side surface being aspheric. The cemented layer has a cemented object-side surface and a cemented image-side surface. The second cemented lens element has a cemented object-side surface being aspheric. An aspheric coefficient of the cemented image-side surface of the first cemented lens element is different from an aspheric coefficient of the cemented object-side surface of the second cemented lens element. One of the lens elements closest to an imaged object has positive refractive power.

Disclosed is a conductive laminated body, and a method for preparing the same, wherein the conductive laminated body including: a substrate; a zinc oxide-based thin film doped with an element M; and an interlayer including an oxide M′2O3, which is interposed between the substrate and the zinc oxide-based thin film. The disclosed conductive laminated body includes a metal oxide interlayer of an oxidation number +3, between a substrate and a zinc oxide layer. Therefore, it is possible to improve electrical properties of a transparent conductive thin film, especially, a resistivity property, and to minimize the unevenness in electrical properties between a middle portion and a circumferential portion on the surface of the thin film in sputtering deposition. Also, in deposition of a zinc oxide film, in addition to inert gas such as argon gas, the use of hydrogen gas can improve the concentration of electrons, and herein, the interposition of an interlayer including a metal oxide, between the substrate and the zinc oxide-based transparent conductive film, allows the heat-resistance / moisture-resistance stability and the uniformity of electrical properties.

A pressure-sensitive adhesive type optical film which comprises an optical film and a pressure-sensitive adhesive layer superposed on at least one side thereof through an anchor layer formed from a resin emulsion. It is easy to handle because the pressure-sensitive adhesive does not peel off even when an edge of the film comes into contract during handling in use.

The invention discloses a one-step synthesis method of N, N-diethyl-3-methyl-benzamide with a fixed bed, which comprises the steps that: 3-methyl benzoic acid and diethylamine are stirred under a solvent system for reaction to generate a complex salt compound of the 3-methyl benzoic acid and diethylamine, and then materials are fed to the catalyzing fixed bed continuously under constant temperature and constant pressure, then dehydrated continuously to obtain a crude product; the solvent is recovered by distillation under ordinary pressure; finally the pure product of the N, N-diethyl-3-methyl-benzamide is obtained after rectification under vacuum. The molar ratio of the 3-methyl benzoic acid to the diethylamine to the solvent is 1.0: (1.0-15.0): (0-25.0), the mass velocity is 0.1 h<-1> to 20.0 h<-1>, the reaction temperature of the fixed bed is 60 DEG C to 550 DEG C and the reaction pressure of the fixed bed is 0.1 MPa to 5.0 MPa. The synthesis technology has the advantages of short technological process, high conversion ratio, good selectivity, high yield rate, small amount of waste gas, waste water and waste residues, reproducible and recyclable catalyst and low cost.

The invention discloses a method and device for quickly processing a signal base line. By utilizing the important information that the sample data is increased point by point, a quick median calculation method is provided and a median filter is realized on such basis, wherein the operation of removing the signal base line is realized by subtracting a median filter output result from an original data. The method comprises the following steps: a) selecting a proper filtering window length k, using a current processing point as a reference point, and filling the filtering window with proper data sequence; b) if the current point is a starting point, searching for the data in the filtering window and outputting the median as the signal base line of the current processing point; c) if the current point is not the starting point, calculating the median in the filtering window by using the quick median calculation method and outputting the median as the signal base line of the current processing point; and d) subtracting a signal base line output value of the current processing point from a collected current processing point value and outputting the result as a data removing the signal base line.