摘要:
An asbestos-free clutch plate assembly has a reduced break-in phase and a facing which is substantially uniformly supported by the clutch plate. The assembly comprises a clutch plate defining a first surface and having a plurality of cambered portions. A substantially rigid, wear resistant, asbestos-free facing is attached to the first surface. The clutch facing has a plurality of grooves formed therein with each groove located substantially along the peak of one of the cambered portions thereby reducing the amount of material to be worn away during the break-in phase. The grooves further enable the clutch facing to conform to the contour of the surface so as to be substantially uniformly supported thereby.
摘要:
Process for the in-vitro biosynthesis of hormones, especially of insulin, by in-vitro conservation or in-vitro propagation of cells from organs and tissues of animal or human origin under suitable cell growth and cell conservation conditions and isolation of the substance formed in a known manner from the culture medium or by processing of the cells. The hormone-producing cells are propagated or conserved in one or more cell culture spaces separated by semipermeable flat membranes of at least one culture medium space.
摘要:
Described is a copper containing ZSM-34, OFF and/or ERI zeolitic material having a silica to alumina mole ratio ranging from about 4 to about 50 and a copper content, reported as CuO, ranging from about 1 to about 10 wt.-%, based on the total weight of the calcined zeolitic material, and having an alkali metal content, reported as the metal oxide, of less than about 0.7 wt.-%.
摘要:
An apparatus and method pertaining to an optical grating are disclosed herein. In one embodiment, in response to a light incident on the optical grating, a first component of the light at a first wavelength is selectively reflected while a second component of the light at a second wavelength is selectively rejected. A reflectance efficiency corresponding to the selective reflection of the first component of the light being a function of a surface roughness of an intermediate layer included in the optical grating. And outputting the selective reflection of the first component of the light at the first wavelength to an optical component included in an extreme ultra violet (EUV) lithography system. The first wavelength being an EUV wavelength and the reflectance efficiency maximized at the first wavelength.
摘要:
Engine-driven hydraulic pump for an aircraft, having a first and a second pump unit which each comprise an adjustable swash plate and a piston assembly coupled with said swash plate and driven by a pump shaft, a control device for adjusting the inclination of the swash plate and a drive shaft via which the hydraulic pump can be driven by an engine of the aircraft while generating hydraulic pressure at an outlet line, characterized in that the pump units are arranged in parallel and have a respective pump shaft, which pump shafts are coupled with the drive shaft by a gear unit.
摘要:
Process for preparing propylene oxide, which comprises at least the steps (i) and (ii): (i) providing a catalyst comprising at least one porous oxidic material; (ii) reacting propene with a hydroperoxide in at least one nitrile as solvent or in a solvent mixture comprising at least one nitrile in the presence of the catalyst of (i), wherein the at least one porous oxidic material is a zeolite which is assigned X-ray-crystallographically to the MWW type.
摘要:
The invention relates to a motor vehicle having an operator control element for the operator control of a function of the motor vehicle, wherein the operator control element comprises an upwardly directed surface having a touchpad for the operator control of at least a first function of the motor vehicle, and wherein the operator control element can be displaced in one direction essentially parallel to the upwardly directed surface for the purpose of operator control of at least a second function of the motor vehicle.
摘要:
Process for the integrated preparation of aromatics and ammonia by reaction of a gas stream A comprising at least one C1-C6-aliphatic and nitrogen in the presence of at least one catalyst, wherein the C1-C6-aliphatics are converted nonoxidatively into aromatics in one reaction and the hydrogen liberated in this reaction is reacted with nitrogen to form ammonia in a further reaction.
摘要:
In a method for operating a motor vehicle (1) an identification identifier (2) for a driver of the motor vehicle (1) is determined depending on the time lag between at least two events.
摘要:
The present invention relates to a continuous process for the preparation of an olefin oxide wherein an olefin is reacted with a hydroperoxidein the presence of a catalyst, and wherein the reaction which is carried out in at least three reactors operated in parallel is controlled by specifically adjusting the catalyst loads in the reactors.