摘要:
An eddy current induced in an RF shield by an X-axis gradient coil, a Y-axis gradient coil, and a Z-axis gradient coil respectively is homogeneously released to an earth ground simultaneously with induction. An RF shield is connected to a magnet via capacitors at four points whose angles are different from one another by 90°. The magnet is connected to the earth ground. An eddy current induced in the RF shield can be prevented from degrading MRI image quality.
摘要:
Bumps are formed on electrodes of semiconductor elements, and moreover, the semiconductor elements with the bumps are electrically connected to metallic members having installation members, whereby wiring lines are eliminated. Stray inductance and conduction resistance resulting from wiring lines can be reduced. A conventional dented connector and a projecting connector are eliminated by connecting the installation members to a second circuit board, thereby enabling an electronic circuit device of a power control system to be made compact.
摘要:
A manufacturing apparatus for a semiconductor device comprises: a clean room for installing a plurality of semiconductor manufacturing and processing apparatuses; an external air cleaning device connected to a supply port of the clean room for supplying a cleaned-up outside air into the clean room; a common air duct section installed in the clean room; a first air cleaning and ventilating means connected to said common air duct section for cleaning and ventilating a part of the cleaned-up outside air to the common air duct section; individual air duct section branched off from the common air duct section and connected to each of said semiconductor manufacturing and processing apparatuses; and a second air cleaning and ventilating means interposed between the individual air duct section and each of the semiconductor manufacturing and processing apparatuses for cleaning and ventilating the air to be supplied to each of the semiconductor manufacturing and processing apparatuses.
摘要:
A viscous heater for heating cooling water for cooling a water cooled engine is disposed in a cooling water circuit, and a front heater core is disposed in the cooling water circuit at a downstream side of the viscous heater with reference to a flow direction of the cooling water. Only when a heating operation is the maximum heating operation or the maximum heating operation is desired, a viscous clutch is turned on to transmit a driving force of the engine to the viscous heater. When the maximum heating operation is not desired, the viscous clutch is turned off so that the driving force of the engine is not transmitted to the viscous heater. Therefore, a load of the engine is reduced, and the cost for running the vehicle can be lowered.
摘要:
An electrically heatable honeycomb body includes a plurality of passages which are each defined by partition walls made of an electroconductive material and which are substantially parallel to the direction of a gas flowing through the honeycomb body, and two ends which are the gas inlet and outlet sides of honeycomb body, wherein the heat generation of the honeycomb body by electrification is controlled by adjusting the flow of electricity therein and wherein those cells each constituted by a passage and partition walls, present in the vicinity of each current-concentrating portion are formed in such a structure that the stress caused by current concentration can be reduced. This honeycomb body can reduce the stress caused by current concentration and thereby can prevent the rupture of its cells.
摘要:
When a thermosetting composition comprising(A) a resin having hydroxyl group,(B) a hydrolyzable silyl group-containing polymer,(C) a hydrolyzable silicon compound and(D) a curing catalyst is used, coating materials having no problem as to bad-smelling can be obtained and the coating films formed therefrom are improved in physical properties such as adhesion, solvent resistance and hardness.
摘要:
An endoluminal graft which is both expandable and supportive is provided in a form suitable for use in a branched body vessel location. The graft expands between a first diameter and a second, larger diameter. The support component is an expandable stent endoprosthesis. A liner is applied to the endoprosthesis in the form of a compliant wall material that is porous and biocompatible in order to allow normal cellular invasion upon implantation, without stenosis, when the expandable and supportive graft is at its second diameter. The supportive endoluminal graft is preferably provided as a plurality of components that are deployed separately at the branching body vessel location, one of which has a longitudinal indent defining leg portions within which the other components fit in a telescoping manner.
摘要:
A curable resin comprising units of at least one prepolymer selected from the group consisting of a prepolymer (C) and a prepolymer (F); the prepolymer (C) having the formula (I): ##STR1## and the prepolymer (F) having the formula (III): ##STR2## The curable resin has the excellent flexibility, solvent resistance and adhesion to organic materials and the properties thereof can be controlled accordingly to desire, in addition to the excellent curability at ordinary temperature, adhesion to inorganic materials and weatherability.
摘要:
High Cr content, P added ferritic stainless steel containing, in % by weight, C: up to 0.02%, Si: up to 1.0%, Mn: up to 1.0%, S: up to 0.03%, Cr: from more than 20% to 40%, N: up to 0.015%, Al: up to 0.5%, and P: from more than 0.06% to 0.20%, the balance being Fe and incidental impurities, is improved in atmospheric corrosion resistance and rust prevention. The stainless steel may further contain at least one element selected from the following groups: (1) Mo: up to 4.0%; (2) one or more elements of Ti: up to 1.0%, Nb: up to 1.0%, Ta: up to 1.0%, V: up to 1.0%, W: up to 1.0%, Zr: up to 1.0%, and B: up to 0.01%; and (3) one or more elements of Cu: up to 1.0%, Ni: up to 5.0%, and Co: up to 1.0%.
摘要:
A hydrolyzable silyl group-containing azo compound is represented by the following general formula (I): ##STR1## wherein A represents a group originating from an azo compound having one or more active hydrogen groups;R.sup.1 represents a monovalent organic group;R.sup.2 represents a divalent organic group;X represents a hydrolyzable group;Y represents --O--, --S--, ##STR2## m is an integer of 1 to 3; and n is an integer of 1 or 2;and process for producing the same is disclosed. The hydrolyzable silyl group-containing azo compound is used to prepare a hydrolyzable silyl group-containing vinyl polymer produced by polymerizing vinyl monomer as a radical polymerization initiator.