摘要:
The present invention relates to reaction resins based on an unsaturated polyester, one or more vinyl compounds and hydrocarbon nanotubes that can be cured radically, wherein hydrocarbon nanotubes are covalently bound to the unsaturated polyester.
摘要:
The present invention relates to new marker sequences for multiple sclerosis and the diagnostic use thereof together with a method for screening of potential active substances for multiple sclerosis by means of these marker sequences. Furthermore, the invention relates to a diagnostic device containing such marker sequences for multiple sclerosis, in particular a protein biochip and the use thereof.
摘要:
The invention relates to a vehicle equipped with seats and/or equipment for use in regions, in which detonations by mines or such like are to be feared, wherein walls, floor and ceiling are provided with means, which can withdraw energy from the blast wave of a detonation by means of work of deformation, and the floor is suspended only through ropes, rods or chains by means of separable connections. At least one pressure sensor and/or acceleration sensor is provided, which reacts to a blast wave, outputs a signal and ignites explosive charges thereby. The explosive charges (11) are arranged at the separable connections (8) and these are broken, before the blast wave of a detonation has reached the floor (10).
摘要:
The present invention relates to a process for the production of shape memory molded articles with a wide temperature application range, and their use in the he production of injection molded articles and extruded articles.
摘要:
A method and device for electrically braking an electric drive in a machine for processing printing material, includes a power electronics connected between the electric drive and a DC voltage intermediate circuit. A further electric braking device is switchable between the electric drive and the power electronics. Upon a failure of a power system, a computer initiates a generator-type braking operation through the power electronics. The further electric braking device is switched on upon the failure of the power electronics.
摘要:
An escalator drive machine includes a motor output sheave which drives a drive belt along a closed look between the output sheave and a drive sprocket. The output sheave engages the drive belt with the step chain such that the step chain and attached tread plates are propelled from one landing to the other. The output sheave includes a first set of teeth and a second set of teeth. The first set of teeth is around the output sheave hub to engage a set of belt teeth extending from the drive belt. The second set of teeth is preferably located along a rim of the output sheave and is engageable with corresponding link teeth located along each link in the drive chain. The second set of teeth maintain their relationship with the corresponding link teeth due to the first set of teeth, however, there is no contact therebetween. However, should the drive belt fail or become disengaged, the second set of teeth engage the corresponding link teeth. The step chain and attached tread plates are thereby prevented from moving independently.
摘要:
A winding device, having a winding shaft, which can be inserted into and removed from the winding device, and a winding element and bearing journals protruding from both ends in the direction of the center axis of the winding shaft. The winding device has two outer bearings for receiving the bearing journals for rotatable seating of the winding shaft in the winding device, and an additional bearing for the winding shaft is assigned, spaced apart, to each outer bearing. Each outer bearing has a coupling device, and the coupling devices are displaceable along the center axis of the winding shaft and can be connected with or disconnected from the respective ends of the bearing journals. The additional bearings, acting as inner bearings, are formed between the ends of the bearing journals, which can be connected with the outer bearings, and the winding element on the bearing journal of the winding shaft.
摘要:
Movement of the handrail on an escalator or moving walkway passenger conveyor is smoothed out by providing a totally elastomeric coupling between the conveyor step chain and the handrail drive mechanism. The handrail drive mechanism is a friction drive roller, or belt, which is driven by being connected to the step chain. The connection between the step chain and the handrail drive is provided by an elastomeric member which engages both a step chain-driven sprocket and the handrail drive mechanism. The elastomeric connection damps out jerks which are created by the chordal nature of the step chain and the main motor drive chain as the chains pass around chain return sprockets. The elastomeric connection therefore smooths out movement of the handrail.
摘要:
A method for suppressing current peaks occurring during commutation in phase windings of a brushless direct-current motor, including supplying the phase windings via an indirect direct-current converter with rectangular current having an actual value measured exclusively in a direct-current link of the converter (single-current measurement), and delaying current buildup in the phase winding by a time period t.sub.v with respect to a current decay.
摘要:
A method of controlling a drive unit of a pile-lifting device located at a sheet-fed printing machine includes starting-up the drive unit with a first mode of operation selected by an electronic current wherein rated torque is high and rated speed is low for respectively lifting and lowering the pile and, after a given period of time, following the starting-up of the drive unit, switching to a second mode of operation of the drive unit wherein the rated torque is low and the rated speed is high if the speed has exceeded a preset value during a lifting of the pile, and has not exceeded a preset value during a lowering of the pile; and a device for performing the method.