摘要:
A method for assembling rotors which is applicable to a large axial gap type permanent magnet rotating machine is provided.A permanent magnet rotating machine comprising: a rotating shaft; at least two rotors comprising a table-like structure and permanent magnets attached thereto, the table-like structures being connected to the rotating shaft and being disposed in an axial direction of the rotating shaft; and a stator comprising a table-like structure and stator coils around which a copper wire is wound, said stator being disposed in a gap formed by the rotors so that the stator being separated from the rotating shaft, is manufactured by the following steps of: assembling the two rotors such that a predetermined gap is formed therebetween; and mounting the magnets on the table-like structures by inserting the magnet from the radially outer side of the table-like structures towards the center of the rotation with the assembled state being maintained.
摘要:
Highly-functionalized, low-viscosity polyether polyols are obtained by dehydration condensation reaction of alcohols.The polyether polyols are obtained by dehydration condensation of glycerin and monohydric and/or dihydric alcohol with the glycerin percentage being more than 50 mol % relative to 100 mol % of the total of the glycerin and alcohol. The glycerin may be crude glycerin obtained by hydrolysis or alcoholysis of natural fat and oils.
摘要:
An electronic apparatus includes an electronic-apparatus housing provided with a sound release hole, a speaker unit housed in the electronic-apparatus housing and facing the sound release hole, a grille body made of a conductive material, configured to allow sound to pass therethrough, and having a plate-like shape that is of sufficient size to cover the sound release hole, a frame made of an insulating material and detachably attached to the electronic-apparatus housing while supporting the grille body, such that the grille body covers the sound release hole, a cushion member provided on the frame and having elasticity and conductivity that allows the cushion member to be electrically continuous with the grille body, and a conductive member grounded inside the electronic-apparatus housing and, when the frame is attached to the electronic-apparatus housing, becoming electrically continuous with the grille body through the cushion member.
摘要:
Polyester polyol compositions have a low viscosity and are suited for the production of rigid polyurethane foams. Compositions for rigid polyurethane foams contain the polyester polyol compositions. Rigid polyurethane foams are produced therefrom.A polyester polyol composition is obtained by: a step (I) in which a dibasic acid compound (A) is reacted with a trihydric or higher polyhydric alcohol (a compound (B)); and a step (II) in which the reaction mixture from the step (I) is reacted with a hydroxycarboxylic acid compound (C); at least one compound (C) being a compound (C′) selected from the group consisting of ricinoleic acid compounds and 12-hydroxystearic acid compounds; the polyester polyol composition having a hydroxyl value in the range of 250 to 550 mg KOH/g and an average functionality of 3 to 8.
摘要:
Highly-functionalized, low-viscosity polyether polyols are obtained by dehydration condensation reaction of alcohols.The polyether polyols are obtained by dehydration condensation of glycerin and monohydric and/or dihydric alcohol with the glycerin percentage being more than 50 mol % relative to 100 mol % of the total of the glycerin and alcohol. The glycerin may be crude glycerin obtained by hydrolysis or alcoholysis of natural fat and oils.
摘要:
The present invention is aimed at treating rainwater in a combined sewer system, while enabling removal of a majority of pollution substances even if a large amount of entering rainwater. The invention relates to a rainwater-treating apparatus in a combined sewer system, said apparatus comprising a plurality of upward flow type high-speed filter vessels each having a layer of a floating filter medium, a common treated water vessel which is located at upper faces of said high-speed filter vessels and is adapted to collect treated water from the high-speed filter vessels, a used wash water vessel which collects used wash water from said high-speed filter vessels, a rainwater inflow channel for distributing the entering rainwater into upper portions of the high speed filter vessels, and rainwater inflow portions for flowing downwardly the rainwater distributed from the rainwater inflow channel under the respective floating filter media of the filter vessels.
摘要:
A method for treating an organic sludge is provided which can sufficiently and efficiently solubilize an organic sludge to afford a high load of anaerobic digestion treatment with an improved digestion ratio and methane gas recovery amount thereby to widely decrease the amount of the organic sludge discharged from the method. The method includes a hot alkaline treatment for causing the organic sludge to become alkaline while maintaining the temperature of the sludge to ambient -100.degree. C. to solubilize organic matters in the sludge, and an anaerobic digestion treatment of anaerobically digesting the organic sludge after the hot alkaline treatment at a temperature of 20.degree.-60.degree. C. at a pH of 7.3-9.2.
摘要:
Disclosed are a polyol with a molecular weight distribution Mw/Mn of 4 or more, obtained by reacting a compound comprising an alkylene oxide compound (II) having a hydroxyl group in a base polyol (I) with a molecular weight of 2000 or more; and a polyol composition for a flexible polyurethane foam, comprising a polyol compound and a crosslinker, wherein the crosslinker comprises a polyol (a) with a hydroxyl value of 50 to 1100 mgKOH/g and with a primary hydroxylate ratio of 25% or more and 60% or less, which is obtained by an addition of a compound comprising alkylene oxide compound (ii) having a hydroxyl group to active hydrogen compound (i).
摘要:
A high-output and highly efficient axial gap type rotating machine capable of reducing an eddy current generated in a winding wire and supplying a larger current is provided. The axial gap type rotating machine may include a housing, a rotating shaft rotatably supported in the housing; two rotors capable of rotating integrally with the rotating shaft, and a stator fixed to the housing, the stator disposed in an air gap formed by the rotating plates disposed to face each other, the stator including a fixing plate and coils disposed in a circle on the fixing plate so as to face the circles of the permanent magnets, wherein each of the coils includes a winding wire formed by a bundle of at least two coil conductors having rectangular cross sections by aligning at least one of long sides and short sides thereof, and the winding wire has an outer circumference covered with an insulating coating and is wound such that the long sides in cross section of the coil conductors are positioned perpendicular to the magnetic pole surfaces of the permanent magnets.
摘要:
The filtration system of the present invention comprises first and second filtration tanks. The first filtration tank has a first floating filter media layer, a first upper screen with a first aperture ratio, a first inlet, a first backwash water supply source, and a first backwash water outlet means. The second filtration tank has a second floating filter media layer, a second upper screen with a second aperture ratio, a second inlet, an inflow blocking mechanism capable of blocking inflow of water to be treated through the second inlet, a second backwash water supply source, and a second backwash water outlet means. The first aperture ratio is smaller than the second aperture ratio.