133results about How to "Produce uniform" patented technology

Polymer nanofibers, such as polyaniline nanofibers, with uniform diameters less than 500 nm can be made in bulk quantities through a facile aqueous and organic interfacial polymerization method at ambient conditions. The nanofibers have lengths varying from 500 nm to 10 μm and form interconnected networks in a thin film. Thin film nanofiber sensors can be made of the polyaniline nanofibers having superior performance in both sensitivity and time response to a variety of gas vapors including, acids, bases, redox active vapors, alcohols and volatile organic chemicals.

An induction coil composed of n pieces of identically shaped coil elements (where n is equal to or greater than two), which are rotation-symmetrically arranged with respect to an axis normal to the surface of an object to be processed, is provided above the object, the coil elements being electrically connected in parallel. Each of the coil elements of the induction coil encircles the aforementioned axis, with the ground end and the feed end located at the same position on a projection plane on the object with the ground end under the feed end. Each coil element has a bottom portion shaped like an arc having a predetermined width and a central angle of 360°/n, with the ground end at one end thereof, and a feed portion shaped like an arc having a predetermined width, with the feed end at one end thereof, the feed portion being located above the bottom portion and electrically connected to the same bottom portion. It is also possible to assemble a plurality of coil elements so that the ground end of each coil element is located immediately below the feed end of another coil element.

A hardware assembly is provided for cabinet sliding doors as are used with entertainment centers. The hardware assembly includes a u-shaped spacer which is attached to a slotted plate in selective fashion to provide infinite relative positioning. The hardware assembly can be quickly installed and adjusted by inexperienced personnel which is useful in finishing the cabinet and thereafter, daily usage.

The invention discloses a dielectric barrier corona discharge reactor which comprises an outer electrode, an inner electrode and a dielectric barrier layer positioned between the outer electrode and the inner electrode, wherein the outer electrode is connected with a power supply, and the inner electrode is grounded. The dielectric barrier corona discharge reactor can generate and transmit more charges under same external voltage and discharge spatial clearance due to corona ionization effect and simultaneously output higher discharge power. The dielectric barrier corona discharge reactor can obtain stronger pulse voltage and current during discharge and enable energy during the discharge to be more centralized.

A polymer solution that is prepared by dissolving a polymeric substance in a solvent is supplied into a cylindrical container serving as a rotating container having a plurality of small holes. The cylindrical container is driven to rotate by rotation drive means, and an electric field is applied by high voltage generating means to polymeric filaments discharged from the small holes so that they become electrically charged. Then, primary and secondary electrostatic explosions associated with the centrifugal force and the evaporation of the solvent take place, drawing the polymeric filaments and producing nanofibers made of the polymeric substance. These nanofibers are deposited to produce a polymeric web. Accordingly, by employing a simple structure, nanofibers and a polymeric web utilizing them can be produced evenly with excellent productivity.

The invention relates to a novel electrical heating unit which at least comprises a substrate and an electrical heating film attached to the substrate, wherein the at least one substrate is made of aluminum oxide ceramics; the aluminum oxide ceramic substrate is in a plane-shaped structure; and at least one electrical heating film is attached to at least one surface of the aluminum oxide ceramic substrate. Thus, the electrical heating films can generate heat on one surface of the substrate, on which the electrical heating film is arranged, and the heat is evenly generated from the attached surface and transmitted through the aluminum oxide ceramic substrate so as to generate uniform heating effect.

The present invention provides members that produce on a large scale a coenzyme-linked glucose dehydrogenase which has excellent substrate-recognizing ability toward glucose while providing low action on maltose. The present invention relates to a polynucleotide encoding a soluble coenzyme-linked glucose dehydrogenase that catalyzes the oxidation of glucose in the presence of an electron acceptor and has an activity toward maltose of 5% or lower; a polypeptide encoded by the nucleotide sequence of the polynucleotide; a recombinant vector carrying the polynucleotide; a transformed cell produced using the recombinant vector; a method for producing a polypeptide comprising culturing the transformed cell and collecting from the cultivated products a polypeptide that links to FAD to exert the glucose dehydration activity; a method for determination of glucose using the polypeptide; a reagent composition for determination of glucose; and a biosensor.

The present invention provides an organic semiconductor device, which can be produced uniformly on a large substrate, having a high mobility and capable of greatly modulating the drain current by varying the voltage applied to a gate electrode. The present invention provides an organic semiconductor device having at least a substrate, an organic semiconductor, a gate insulating film and conductors, and having electrodes for applying bias, wherein a polymer layer, which is different from the gate insulating film, is provided in contact with the organic semiconductor, and the polymer layer is formed of a copolymer of methyl methacrylate and divinylbenzene, or the like; a process for producing the organic semiconductor device; and an organic semiconductor apparatus using the organic semiconductor device.

An air-bleed gas turbine includes a compressor; a combustor; a turbine; and an air bleed portion by which compressed air, which is supplied from the compressor to a circular space that surrounds the combustor, is partially supplied to a device outside the air-bleed gas turbine. The air bleed portion includes an air bleed passage that is communicated with an air bleed port which is connected to the device outside the air-bleed gas turbine, and a communication passage that is communicated with the circular space. The air bleed passage is communicated with the circular space through the communication passage. The flow passage area of the communication passage is increased as the distance from the air bleed port increases in the circumferential direction of the circular space.

The invention discloses air purification and disinfection equipment capable of generating uniform high-concentration plasma. The equipment mainly comprises a housing (1), a fan (2), a plasma generator (3) and a boosting power supply (4), wherein the plasma generator (3) consists of a plurality of cylindrical plasma fundamental reaction units (30); the cylindrical plasma fundamental reaction units (30) comprise positive electrodes and negative electrodes; the positive electrodes are discharge electrode wires (310); the negative electrodes are hollow metallic circular tubes (320); the metallic circular tubes take the discharge electrode wires as center shafts; end covers (330) made of non-conducting insulation materials are arranged at the two ends of each metallic circular tube (320); and a plurality of hollow through holes (B) are formed in the two end covers (330). According to the equipment, air entering an air disinfection machine can be excited to be the uniform high-concentration plasma, so that indoor air can be disinfected, sterilized, dedusted and deodorized rapidly and effectively.

A center hole machining method includes first to fifth steps. The first step includes obtaining outer peripheral shape data of a plurality of portions of the shaft blank in an axial direction. The second step includes obtaining a center axis by comparing measured data of the portions of the shaft blank with design data. The third step includes calculating a minimum distance from the center axis to the outer periphery in each of the portions of the shaft blank. The fourth step includes shifting the center axis in a direction of making the minimum distance greater than the machining dimension and repeatedly executing the third step when the minimum distance is less than or equal to the machining dimension. The fifth step includes boring the center hole in an end surface of the shaft blank at a position arranged on a line extended from the center axis.

The invention relates to a foaming agent and a preparation method thereof, and belongs to the technical field of preparation of foamed aluminum and foamed aluminum alloy. The foaming agent has a composition ratio of 20-25% by weight of quicklime, 30-40% by weight of coke, 10-15% by weight of potassium carbonate, and the balance is calcium sulfate. The steps of preparing foamed aluminum and foamed aluminum alloy with the foaming agent mentioned in the present invention: (1) melting process: put the aluminum alloy ingot into the crucible, heat it to 680-720 ° C and keep the temperature until it melts; (2) increase Viscosity process and foaming process: Add 1.5~3% foaming agent to the aluminum melt and stir for 5 minutes at a stirring speed of 1500~2000rpm to increase the viscosity of the melt and distribute the foaming agent in the aluminum melt (3) Heat preservation process: After the foaming agent is mixed evenly, keep the temperature at 680-720°C for 5-10 minutes. (4) Cooling process: After the aluminum foam is formed, it is naturally cooled in the air or forced to water. The foaming agent of the invention has low cost, is economical and effective, and can replace TiH2 foaming agents.

The present invention provides a conducting polymer, a synthesis method thereof, and an electroactive electrode covered with the said conducting polymer. The conducting polymer is synthesized as follows: use the polybasic acid as dopant and crosslinking agent, and polymerize monomers into conducting polymer hydrogel. The monomers are selected one or more from pyrrole or its derivatives, thiophene or its derivatives, aniline or its derivatives. The acid group of the polybasic acid contains phosphate or polybasic acid which contains at least two substituents per molecule selected from sulfate, nitrate or carboxylic in which the molecular weight of at least one acid group is no more than 800. The mole ratio of the acid group in polybasic acid to monomers of the conducting polymer is 1:12-12:1. The preparation applied in the invention is simple, and need not to import any impurity. The conducting polymer hydrogel has high ionic conductivity, super hydrophilicity, and good biocompatibility.

The invention discloses a polysilicon granule preparation system, and solves the problems of the polysilicon particles in prior art, such as easy deposition on wall of a fluidized bed reactor, nonuniform particle size, low utilization rate of the polysilicon seed crystal and large loss rate of polycrystalline silicon fine powder. The system comprises an aslant arranged rotating fluidized bed, a first stage cyclone separator, a second stage cyclone separator, a carrier gas filter, a material preheating tank and a tail gas buffer tank. The reaction cylinder in the middle of the rotating fluidized bed can rotate relatively to end sockets at the two ends; and the rotating fluidized bed is provided with a baffle plate. The invention can effectively restrain deposition of the polycrystalline silicon particles in the fluidized bed reactor wall, improve utilization rate of polycrystalline silicon and reduce the loss rate of polycrystalline silicon fine powder. The invention also discloses a preparation method of polycrystalline silicon particles. The preparation method has advantages of stable process, good continuity of operations, high utilization rate of polycrystalline silicon, high efficiency of polycrystalline production and uniform size of the obtained polysilicon granules.

Provided is a method for sterilizing a packaging material and a sterilizer used therefor, which do not cause unevenness in the sterilization effect, and uses high voltage pulses permitting to improve the sterilization effect. The purpose can be achieved by using such a discharge side electrode as is provided with unevenness having continuous projections on the discharge side surface, in the method in which the sterilizer is provided with a power source for generating high voltage, a discharge side electrode to which the high voltage generated by the power source is applied, and a ground side electrode arranged so as to be opposed to the discharge side of the discharge side electrode, and sterilizes a packaging material to be sterilized by placing it between both electrodes under normal temperature and normal pressure, and applying the high voltage pulses thereto in a gas atmosphere.

The invention discloses jetting treatment groove equipment for the department of neurology. The equipment includes a rotary column, a movable chair and treatment water spraying pipes; a treatment water groove is formed in an equipment body; the treatment water spraying pipes are movably installed on the side wall of the upper end of the treatment water groove through shafts; the treatment water spraying pipes are composed of water pipes, a rotary fixing plate and sprayers, and fixed on the side wall of the treatment water groove through the rotary fixing plate; a second controller is also arranged at the upper end of the outer wall of one side of the treatment water groove; the bottom side of the outer wall of the other side of the treatment water groove is sequentially provided with a water pump device and a frothing machine; the water pump device is communicated with the treatment water spraying pipes through water pipes; the bottom of the other side of the treatment water groove isfixedly provided with a rotary base; the movable chair is arranged on the rotary column. According to the jetting treatment groove equipment for the department of neurology, since sprayers are symmetrically arrayed and arranged on all transverse pipes at the upper ends of the treatment water pipes, more convenience is provided for carrying out water spraying treatment on the whole body of a treated user, and the jetting treatment effect is effectively improved.

An air cleaner is composed of outdoor unit, indoor unit containing cold medium, oxygen generator and cold medium tube. Said oxygen generator consists of oxygen generating unit in outdoor unit, oxygenexhauster and oxygen delivering tubes. Said oxygen generating unit comprises casing and mechanical unit consisting of air pump, switching valves, adsorbing column with nitrogen adsorbent therein, oxygen delivery pipes and test valve, and air delivery pipes.