Abstract: A tube section for constructing a tube for underpressure applications with an incircle having a diameter of at least 2 m and to an evacuated tube transport system tube produced therefrom.

Abstract: A method for producing a tube segment and a tube for an evacuated tube transport system and a method for producing the tube segment.

Abstract: An evacuated tube transport system tube, which in use is near vacuum, including a plurality of tube segments with an internal diameter of at least 3 m, wherein the tube segments are a single-walled metal tube and wherein the surface of the tube is provided with protruding or intruding reinforcements against buckling.

Abstract: An evacuated tube transport system tube.

Abstract: A method for producing a tube segment and a tube for an evacuated tube transport system and a method for producing the tube segment.

Abstract: A rolling-element bearing assembly is provided herein. The rolling-element bearing assembly includes a first raceway that also includes a first sensor module and a first communication module. The rolling-element bearing assembly includes a second raceway that also includes a second sensor module and a second communication module. The first sensor module senses a different condition of the rolling-element bearing assembly than the second sensor module. The first and second communication modules are of a same type. The rolling-element bearing assembly includes a plurality of rolling elements arranged between the first and second raceways to enable the first and second raceways to be rotatable relative to each other.

Abstract: A rolling-element bearing assembly includes first and second rolled-on surface elements and a plurality of rolling elements arranged therebetween such that the first and second rolled-on surface elements are rotatable relative to each other. A first one of the rolling elements includes a first sensor module having a sensor interface operably connected to a communication interface of a first communication module, and a second one of the rolling elements includes a second sensor module having the sensor interface operably connected to the communication interface of a second communication module. The common sensor interfaces allow different sensors to be used with identical communication modules.

Abstract: A rolling-element bearing assembly includes first and second rolled-on surface elements and a plurality of rolling elements arranged therebetween such that the first and second rolled-on surface elements are rotatable relative to each other. A first one of the rolling elements includes a first sensor module having a sensor interface operably connected to a communication interface of a first communication module, and a second one of the rolling elements includes a second sensor module having the sensor interface operably connected to the communication interface of a second communication module. The common sensor interfaces allow different sensors to be used with identical communication modules.

Abstract: A lubricant system is disclosed that is formed by contacting a fibrous network with oil and/or lubricating fluid having an affinity for the fibrous network. The fibrous network comprises oleophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least times the diameter. In addition, the oleophilic fibers have an affinity for the oil and/or lubricating fluid.

Abstract: A roller body for a roller bearing includes at least one cavity extending from an end face of the roller body, at least one retaining element is disposed in the cavity, and at least one sensor is disposed in the cavity, such as in or on the retaining element. The sensor is at least partially surrounded by an elastic material in a protective manner.

Abstract: A hydrophilic composition for use with a lubricating system comprises hydrophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter. The hydrophilic fibers having a strong affinity for at least one of water and other hydrophilic fluids and may remove or eliminate free or dissolved water in a lubricating system comprising at least one of an oil and a lubricating fluid.

Abstract: A lubricant comprises oleophilic thickening fibers dispersed in at least one of an oil and/or and a lubricating fluid. The oleophilic thickening fibers have a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter.

Abstract: A dry lubricant comprises at least 50 wt % of fibers having a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter.

Abstract: An apparatus is disclosed for use in a system containing at least one of an oil and a lubricating fluid. The apparatus comprises a surface in need of lubrication during operation of the apparatus, and oleophilic fibers disposed on the surface. The oleophilic fibers have a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter. In addition, the oleophilic fibers have an affinity for at least one of the oil and the lubricating fluid.

Abstract: A lubricant system is disclosed that is formed by contacting a fibrous network with oil and/or lubricating fluid having an affinity for the fibrous network. The fibrous network comprises oleophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least times the diameter. In addition, the oleophilic fibers have an affinity for the oil and/or lubricating fluid.

Abstract: A bearing adjusts an angle of attack of a rotor blade of a wind turbine according and includes first and second bearing rings that are rotatable relative to each other. The first bearing ring includes, as a slider or translator of a linear motor, a plurality of magnetic field sources disposed adjacently around at least a part of its circumference. The magnetic field sources are disposed such that each two adjacently disposed magnetic field sources generate a magnetic field with alternating polarity. The second bearing ring includes, as a stator of the linear motor, a group of at least two coils disposed adjacently around at least part of its circumference. A wind turbine includes a rotor coupled to at least one rotor blade via such a bearing, which enables the angle of attack of the rotor blade to be adjusted during operation.

Abstract: A method for the separation of a dispersion of molten aluminium and solid inclusions formed from a melt of aluminium containing one or more foreign chemical elements. Molten aluminium surrounding the solid inclusions is at least essentially replaced by a molten salt.

Abstract: A roller body for a roller bearing includes at least one cavity extending from an end face of the roller body, at least one retaining element is disposed in the cavity, and at least one sensor is disposed in the cavity, such as in or on the retaining element. The sensor is at least partially surrounded by an elastic material in a protective manner.

Abstract: The invention relates to a method for fractional crystallization of an at most partially solidified molten metal, in which a layer of at most partially solidified molten metal having an upper surface and a lower surface is divided into a series of compartments communicating with each other, in which the metal is stirred in at least some of the compartments, and in which crystals formed and/or existing in the layer of metal are selectively transported in a predetermined direction and molten metal is selectively transported in the opposite direction.

Abstract: A method for the separation of a dispersion of molten aluminium and solid inclusions formed from a melt of aluminium containing one or more foreign chemical elements. Molten aluminium surrounding the solid inclusions is at least essentially replaced by a molten salt.