摘要:
There is described a roller drive and a roller transport device equipped with the roller drive. The roller drive comprises an electric machine and ends, wherein at least one end has a heat-conducting end contact face. The contact face is intended for coming into heat-conducting contact with a side cheek of the roller transport device. This allows the cooling to be improved. Furthermore, the roller drive can also be designed in such a way that it has a device for accommodating electrical components, wherein the device is intended as a torque support for the electric machine. A regulating device and/or a communication device can also be integrated into the device.
摘要:
The present invention refers to a device, comprising a hollow body having at least one open end and at least one barrier inside or at the end of the hollow body, which is non-permeable for liquids and solids under ambience conditions, however, becomes liquid-permeable by applying an external force like pressure, drag force or driving power to said barrier, the use of such a device for collection, storage, treatment or isolation of a biomolecule or biomolecules containing samples, a method for preparation of said device and a method for isolation or purification of any biomolecules using said device.
摘要:
A device serves the purpose of sealing a rotating shaft for use under water. It exhibits face seals which seal a work area against the water. In accordance with the invention the face seals are constructed in the form of three slide ring pairs, wherein between the three slide ring pairs two areas (18, 21) are arranged. One of the areas is a sealing area adjacent to the water filled with a first medium and the other area is a leaking area adjacent to the work area. In the sealing area the first medium is held at a pressure level which is higher than the pressure of the adjacent water.
摘要:
In a method for producing an outer wall, in particular a side wall for a motor vehicle, from armored steel, having openings, a rocker panel extending in the bottom region, a roof frame area, pillars and side pieces extending between the rocker panel and the roof frame area, and openings for receiving windows, the outer contour of the outer wall is defined, and a pressing tool is provided for forming an outer wall blank having this outer contour. The outer wall blank is formed from an armor steel metal sheet and the doors and the openings are cut out from the outer wall blank.
摘要:
There is described a roller drive and a roller transport device equipped with the roller drive. The roller drive comprises an electric machine and ends, wherein at least one end has a heat-conducting end contact face. The contact face is intended for coming into heat-conducting contact with a side cheek of the roller transport device. This allows the cooling to be improved. Furthermore, the roller drive can also be designed in such a way that it has a device for accommodating electrical components, wherein the device is intended as a torque support for the electric machine. A regulating device and/or a communication device can also be integrated into the device.
摘要:
The invention relates to a process for isolation of plasmid DNA from biomass by means of an aqueous 2-phase system having a polymer component and a salt component, characterized in that the resuspension of the biomass employed, the alkaline lysis of the biomass, the neutralization of the alkaline lysis batch and the separation of the plasmid DNA from the contaminants are carried out in a single reaction vessel (one-pot process) rendered possible in that the neutralization of the alkaline lysis batch is carried out in one and the same container by addition of potassium phosphate and one component of the aqueous 2-phase system is therefore already present. The second component of the aqueous 2-phase system is a PEG having a molecular weight of the mathematical average of about 600 g/mol to 1,000 g/mol.
摘要:
A security cabinet having a housing and a door mounted on the housing, the housing and the door being produced from metal plates, characterized in that the metal plates of the housing and/or of the door are made of steel having the following composition stated in percent by weight: carbon 0.1 to 0.5%, silicon 0.1 to 1.0%, manganese 0.2 to 2.0%, phosphorus max. 0.02%, sulfur max. 0.02%, aluminum max. 0.1%, copper max. 0.5%, chromium 0.05 to 18%, nickel max. 2.0%, molybdenum 0.1 to 1.0%, boron 0.0005 to 0.01%, tungsten 0.001 to 1.0%, nitrogen max. 0.05%, titanium max. 0.5%, vanadium max. 0.5%, niobium max. 0.5%, the remainder being iron and impurities caused by the melting process, wherein the metal plates are hot formed.
摘要:
Water-soluble, solid, film-shaped preparations comprising at least one film-forming polymer selected from the group consisting of the fully and partially hydrolyzed polyvinyl alcohols, and at least one water-insoluble, oily liquid which is incorporated into the film-forming polymer and amounts to at least 30 percent by weight, relative to the dry portion of the preparation. Methods for producing the preparations and the use thereof are also provided.
摘要:
The invention relates to a rudder propeller drive comprising a driving motor (1), the output shaft of which can be effectively connected to a shaft of a propeller by means of a drive train. The propeller shaft is accommodated in a rudder propeller housing that can be mounted outside a hull, while the propeller on the propeller shaft is located outside the rudder propeller housing. A lubricating and/or cooling device is provided for the propeller shaft and/or for drive train areas mounted in front of the propeller shaft. The drive train encompasses a hydrodynamic clutch (3) or a hydrodynamic torque converter which is combined with or integrated into the lubricating and/or cooling device in such a way that the hydrodynamic clutch or the hydrodynamic torque converter and the lubricating and/or cooling device use a joint amount of functional fluid.
摘要:
People mover (2) comprising an endless tread belt (6) formed from several tread elements (4) connected to one another, which is driven by a drive unit about a first and second reversal point (22), and a side skirt (24) moved along with tread belt (6), the side skirt (24) comprising flange elements (28) joined to the tread element (4) and bridge elements (30) connected movably relative to flange elements (28). A sensor (38) is arranged adjacent to the side skirt (24), the sensor (38) having a limited detection range perpendicular to the circulation direction of side skirt (24), and a plurality of marking elements are arranged in a line on side skirt (24) along the circulating direction having a limited width perpendicular to the circulating direction.