145 results about "Reaction field" patented technology

A method for measuring a concentration of a specific component includes the steps of: supplying a sample fluid to a reaction field holding a reagent; obtaining a single or a plurality of leak currents for correction, through a measurement of electric current made once or a plurality of times without applying a voltage to the reaction field; obtaining a single or a plurality of electric currents for calculation, through a measurement of electric current made once or a plurality of times while applying a voltage to the reaction field; and calculating a concentration of a specific component in the sample fluid, based on the single or the plurality of values for correction and the single or the plurality of values for calculation.

A novel nanocarbon composite structure is provided having trapped ruthenium oxide. By using Ketjen black, and through chemical-mechanical effect utilizing an ultracentrifugal reaction field, both the specific surface area of ruthenium oxide and space of electrode material are expanded to have nanoparticles of ruthenium oxide highly dispersed in a graphene layer. This nanocarbon composite structure having trapped ruthenium oxide exhibits high electrochemical activity and is suitable for use as an electrical energy storing device, such as a large-capacity capacitor.

A technique for bonding an organic group with the surface of fine particles such as nanoparticles through strong linkage is provided, whereas such fine particles are attracting attention as materials essential for development of high-tech products because of various unique excellent characteristics and functions thereof. Organically modified metal oxide fine particles can be obtained by adapting high-temperature, high-pressure water as a reaction field to bond an organic matter with the surface of metal oxide fine particles through strong linkage. The use of the same condition enables not only the formation of metal oxide fine particles but also the organic modification of the formed fine particles. The resulting organically modified metal oxide fine particles exhibit excellent properties, characteristics and functions.

The invention relates to a vertical modified stir ball-milling reactor for reinforcing polysaccharide polymers, and a stirring shaft is driven by a drive unit through a coupling. The reactor further comprises a cylinder cover plate, a grinding inner cylinder, a lining plate, a funnel type material feeding port, a material discharging port and grinding balls. A stirring blade set composed of inclined plate blades and an S-shaped spiral blade is mounted on the stirring shaft, the inclined plate blades are mounted on the stirring shaft in parallel, and the S-shaped spiral blade is vertically mounted on the stirring shaft; and a plurality of through holes for grinding balls in the grinding inner cylinder to pass through are arranged on the inclined plate blades. According to the reactor, the stirring blade set is added, so that materials can be mixed evenly, and accordingly, the production efficiency is improved. Simultaneously, the stirring shaft and the S-shaped spiral blade are manufactured into hollow structures, and fed cooling substances are helpful for keeping the temperature to be uniform and the constant-temperature reaction field; and the bottom of grinding inner cylinder is hemispherical, so that grinding dead angles are avoided.

This invention relates to a technique for analyzing a sample. A sample analyzer (1) provided by the invention includes: a voltage applier (12) for applying a voltage to a reaction field which includes a sample; a response measurer (13) for measurement of a response to the voltage applied to the reaction field; a selector (11) for selecting a first voltage application state for measurement of a first response for use in calculation necessary for analyzing the sample or a second voltage application state for measurement of a second response for use in determining whether or not the reaction field has been supplied with a target amount of the sample; an arithmetic operator (17) for calculation necessary for analyzing the sample based on the first response; a determiner (17) for determination, based on the second response, on whether or not the reaction field has been supplied with the target amount of sample; and a controller (15) which makes the selector select the second voltage application state after making the selector select the first voltage application state.

The invention discloses a process for synthesis of polysiloxane which comprises the steps of charging reactant, catalyst and water, agitating at normal temperature, reacting in the microwave reaction field for 60-120 min, and charging terminating substance, the constituents include (by weight portions) reactant 100 parts, catalyst 0.01-0.05 part, water 0.01-0.1 part, and terminating substance 0.01-0.1 part.

The invention discloses a mixed permanent magnetic pole-alternating and magnetic flux-switching memory motor and a winding switching magnetism-weakening control method thereof. The mixed permanent magnetic pole-alternating and magnetic flux-switching memory motor comprises a salient rotor and a stator, wherein the stator contains stator cores, aluminium-nickel-cobalt permanent magnets, neodymium-iron-boron permanent magnets, centralized armature windings and pulsed magnetism-adjusting windings; iron core edges of two adjacent outer U-shaped units and tangentially-magnetized long-stripped neodymium-iron-boron permanent magnets form a first permanent magnetic pole, while the circumferentially-inward (outward) and parallel-magnetized V-shaped embedded aluminium-nickel-cobalt permanent magnets and inner U-shaped units form a second permanent magnetic pole; mixed magnetic poles are in alternating polarity distribution; when the motor runs at a low speed, the pulsed magnetism-adjusting windings are in direct-current pulsed working state, while in a high-speed weak-magnetism area, the pulsed magnetism-adjusting windings are converted into alternating-current armature windings. Requirements on performance in a low-speed area and in the high-speed area can be met at the same time; influence of an armature reaction field on the aluminium-nickel-cobalt permanent magnets with low coercivity is small; the utilization rate of permanent magnetism, the torque density, and the reliability of system operation are high.

A process for preparing a fluoropolymer by polymerizing one or more radically polymerizable monomers comprising at least one fluoroolefin monomer in the presence of a radical polymerization initiator and as case demands, an inactive fluorocarbon and chain transfer agent in a reaction field where at least one of components forming the reaction field is in a supercritical state. According to the preparation process, generation of unstable end groups of the polymer, a decrease in a purity and complicated post-treatment can be eliminated.

A DC electric rotating machine, such as a starter of an automotive vehicle, includes a stator with salient poles having at least four poles distributed uniformly over the circumference of the stator, a rotor disposed inside the stator, a set of brushes adapted for the electric supply of the rotor, and at least two geometrically opposed salient poles. Each pole includes at least one substantially radial slot in a plane parallel to the axis of rotation of the rotor and preferably passes through the axis of the rotor. By minimizing the reaction fields of the armature, utilization of the magnetic material of the parts of the stator is balanced and a harmful armature reaction effect, which increases saturation of the polar parts of the inductor and which leads to reduction in the driving magnetic torque, is mitigated.

The present invention provides a resin composition which enables to obtain a transparent member having excellent transparency, high refractive index and high strength and an optical component composed of such a transparent member. A resin composition of the present invention comprises a polymerizable compound or a resin component and an organically modified fine particle produced in the presence of a high-temperature high-pressure water as a reaction field, in which an organic material is bonded to the surface of a metal fine particle.

This invention relates to a regional current test system for proton exchange membrane fuel batteries including an anode collecting board, a membrane electrode and a cathode collecting board, in which, an anode gas flow field is processed on the anode collecting board to provide a flow channel for the anode gas, collect current generated by the membrane electrode and bring out the current, besides, the membrane electrode provides reaction field for anode and cathode reaction gas, and the proton exchange membrane conducts proton and water to finish the reaction, cathode and anode provide reaction field for various gas and convey current to the collecting board. A reaction gas flow field is processed on the cathode collecting board to provide a flow channel for the cathode gas and collect current generated by the membrane electrode to carry it to outside current.

A chiral inorganic mesoporous material characterized by having a chiral twisted structure and being mesoporous; a process for producing the material; and a method of using the material. The process for inorganic mesoporous material production is a method in which one or more polymerizable inorganic monomers selected from the group consisting of polymerizable inorganic monomers and polymerizable inorganic monomers having a functional group capable of having a charge are polymerized in the presence of a solvent using as a template a self-assembly of a chiral surfactant such as an N-(higher alkanoyl)amino acid salt. Examples of the use of the inorganic mesoporous material include the separation of racemates and reaction fields for asymmetric syntheses.

The invention relates to a method of utilizing co-precipitation method to prepare modified alumina. Firstly, M-source materials and soluble aluminium salts are accurately weighed according to stoichiometric ratio needed by M-Al2O3, then M-source materials and soluble aluminum are dissolved in water, surface active agent is then added into the water with M-source materials and soluble aluminum, the mixed liquid is mixed and then precipitated with the solution of ammonium carbonate with dispersants under the temperature of 40 to 80 DEG C, pH(potential of Hydrogen) value is finally adjusted to 7 to 11, the mixed liquid is then vigorously stirred for 3 to 24 hours, filtered, washed, dried under the temperature of 100 to 120 DEG C, roasted for 4 to 6 hours under the temperature of 500 to 550 DEG C, and is reroasted for 2 to 6 hours under the temperature of 1100 to 1250 DEG C, and finally the produce is prepared. The invention has the advantages of low cost of raw materials, low temperature for synthesizing, simple operation, no pollution, good repeatability and easiness for large scale preparation, thereby being capable of promoting large scale commercial production of the modified alumina. Consequently, the invention can be pushed to be applied in reaction fields such as purifying exhaust gas of automobiles, methane partial oxidation to syngas, catalytic decomposition of propellant used in spacecraft and the like.

An organic oxidation catalyst for alcohols which is environmentally less harmful and with which efficient oxidation can be conducted. The oxidation catalyst for alcohols is a 1-alkyl-2-azadamantan-N-oxyl which has a nitroxyl group incorporated in the adamantane skeleton and was synthesized from as a base material a bicyclic compound obtained by the Grob-type ring-opening reaction of 1,3-adamantanediol. Due to the nitroxyl group on the adamantane skeleton, the α-position hydrogen is stabilized based on Bredt's rule and the stability of the oxoammonium group generated by the oxidation thereof is ensured. Compared to TEMPO, which is a conventional oxidation catalyst, this catalyst is reduced in steric hindrance and is usable in a wide range of reaction fields. Because of this, not only a primary alcohol but a secondary alcohol having a sterically complicated structure, which has been difficult to oxidize with TEMPO, can be oxidized at a high efficiency.

The present invention discloses a simple implementation method for performing gradual homogenized prediction on a thermal expansion coefficient of a periodic composite material. The method comprises the following steps: establishing a single-cell finite element model by means of commercial finite element software, and setting a material parameter in the single-cell finite element model; performing finite element grid division on the single-cell finite element model to obtain nodes and unit information of the single-cell finite element model; determining an initial displacement field according to node coordinate values of the single-cell finite element model; calculating a periodic structure equivalent elastic modulus and a periodic structure equivalent thermoelastic constant; and calculating a thermal expansion coefficient of a periodic composite material. The simple implementation method for performing gradual homogenized prediction on the thermal expansion coefficient of the periodic composite material disclosed by the present invention is convenient to execute, and the method is capable of using the conventional commercial finite element software as a black box to predict the thermal expansion coefficient of the periodic composite material, so that adaptability of a homogenization method is greatly improved; and a process of resolving a strain field in original homogenization and performing integration on each unit is converted to a product of a corresponding displacement field and a node reaction field, which can be obtained in the commercial finite element software, and the process is simplified.

The invention relates to a magnetic sensor device comprising an excitation wire for the generation of an alternating magnetic excitation field (Bi) and a GMR sensor (12) for sensing reaction fields (B2) generated by magnetized particles (2) in reaction to the excitation fields. Moreover, it comprises a compensator (15) for the generation of a magnetic compensation field (B3) that adaptively cancels predetermined spectral components of all magnetic fields (B2, B3) which lie in the sensitive direction of the magnetic sensor element (12). Measurements of the GMR sensor (12) are thus made robust against gain variations of the sensor.

The invention belongs to the field of heterogeneous catalysts, and particularly provides an acid-base bifunctional solid catalyst and a preparation method thereof. The method comprises the steps that a silica-based mesoporous molecular sieve SBA-15 is selected as a carrier, ZrO2/SO4<2-> type solid superacid is loaded, obtained solid superacid is subsequently grafted with an acidic -SO3H group and a basic -NH2 group through a silane coupling reaction, and the acid-base bifunctional solid catalyst is obtained. The defects that in the reaction field of preparing 5-hydroxymethylfurfural (5-HMF) from cellulose, the activity is not high, and the selectivity is poor are overcome, and the preparation method of the acid-base bifunctional heterogeneous solid catalyst with a large specific surface area is provided.

The invention provides a method for dispersing particles within a reaction field, the method comprising confining the particles to the reaction field using a standing wave. The invention also provides a system for coating particles, the system comprising a reaction zone; a means for producing fluidized particles within the reaction zone; a fluid to produce a standing wave within the reaction zone; and a means for introducing coating moieties to the reaction zone. The invention also provides a method for coating particles, the method comprising fluidizing the particles, subjecting the particles to a standing wave; and contacting the subjected particles with a coating moiety.

The present invention relates to a catalyst for removing a metal carbonyl which comprises a nickel-containing catalyst component and copper, said copper being present in an amount of 0.001 to 250% by weight in terms of metallic copper on the basis of a weight of the nickel contained in the catalyst component. The catalyst may further contain, if required, zinc oxide, a clay mineral, or a clay mineral supporting at least one element having an average particle diameter of not more than 50 nm which is selected from the group consisting of ruthenium, rhodium, iridium, platinum, gold, silver, palladium, nickel, cobalt, copper, iron, zinc, vanadium and manganese. When using the catalyst, it is possible to produce a mixed reformed gas from hydrocarbons, and remove a metal carbonyl in a reforming reaction field.

The invention relates to the technical field of electro-chemical water treatment, particularly to a merged propeller blade type electro-catalytic reactor for high-viscosity wastewater treatment. The structure of the electro-catalytic reactor comprises a casing, an upper floating head, a lower floating head, a base, propeller blade anodes, propeller blade cathodes, a conducting shaft, anode guide plates, cathode guide plates, insulation guide plates, an axial flow motor, and auxiliary components, wherein the casing, the upper floating head, the lower floating head and the base are used for protecting and supporting the reactor; the propeller blade anodes, the propeller blade cathodes, the conducting shaft, the anode guide plates, the cathode guide plates and the insulation guide plates are used for providing a reaction field for electrocatalysis; the axial flow motor is used for providing driving force for the flow of water bodies; the auxiliary components comprise a water inlet pipe, a water outlet pipe, a cleaning pipe, a residue discharge pipe and the like. After high-viscosity waste water enters a system through the water inlet pipe, and the high-viscosity waste water is uniformly distributed and violently disturbed under the stirring action of the propeller blades, so that the short pass of water flows is avoided, the mass transfer effect is also enhanced, waste water generates an oxidation reaction in the propeller blade anodes and generates a reduction reaction on the propeller blade cathodes alternately, and the effective degradation of different organic pollutants is smoothly realized.