Abstract: The invention relates to a method for carrying out organic reactions with fine-particulate alkali metal dispersions in a continuous operation, preferably on a rotary disc reactor. This method can be used primarily in the production of coupling products following Wurtz synthesis, and in the production of macrocycles using acyloin condensation.

Abstract: The present invention relates to a method of purifying strong acids or strongly acidic media to remove di- and higher valent metal ions, which can be used within the context of the production of high-purity silica. The invention further relates to the use of special ion exchangers for carrying out the method according to the invention and the resultant high-purity silicas.

Abstract: An x-ray device is for creation of high-energy x-ray radiation. In an embodiment, the x-ray device includes a linear accelerator. The linear accelerator, for creation of x-ray radiation, is embodied so as to create an electron beam directed onto a target, of which the kinetic energy per electron amounts to at least 1 MeV. In an embodiment, the x-ray device further includes a beam limiting device, arranged in the beam path of the electron beam between linear accelerator and the target, including an edge region surrounding a beam limiting device opening. A material thickness of the edge region, in a propagation direction of the accelerated electron beam emerging from the linear accelerator, amounting to less than 10% of the average reach of electrons of the created kinetic energy in the material of the edge region.

Abstract: The invention relates to a braking mechanism (10) for an electric drive motor (1), in particular a drive motor (2) comprising an armature shaft (5) that protrudes from a motor housing (2); the braking mechanism (10) comprises at least one braking element (17) and an energy store, the energy store permanently applying a braking power to a frictional surface of the braking element. The braking mechanism (10) is characterized in that the energy store and the braking element (17) are made of the same material as a single piece.

Abstract: A linear accelerator is operated by emitting charged particles from a particle source and accelerating the particles in an accelerator by wayof a high-frequency alternating field in such a way that pulses of charged particles are generated. A high-frequency power is periodically supplied by way of high-frequency pulses to the accelerator in order to generate the high-frequency alternating field. A particle stream emitted by the particle source is varied during a HF pulse length of the high-frequency pulse in such a way that the pulse formed during the HF pulse length has at least two sub-pulses with different mean energies per particle. There is also described a linear accelerator that carries out the method and a material-discriminating radioscopy device with a linear accelerator of this kind.

Abstract: The invention relates to a control system for a lighting system comprising at least one control adapter having a digital interface for connection to an assigned digital control bus, to which a plurality of light-technology operating components such as control gear, ballast devices, sensor units, and/or switch units are connectable as bus users by means of a respective digital interface, wherein the at least one control adapter furthermore has a controller and a wireless interface for data coupling of the control adapter to a wireless network terminal.

Abstract: A liquid cleaning agent containing: a) 20 to 70 wt % water, b) at least one amylase preparation, c) at least one Ca2+-ion source, d) lactic acid or a lactic acid salt, is notable for elevated amylase stability and improved cleaning performance.

Abstract: It has been found that conventional cheap waterglass qualities in a strongly acidic medium react to give high-purity silica grades, the treatment of which with a base leads to products which can be processed further to give glass bodies with low silanol group contents.

Abstract: The present invention relates to a method of purifying strong acids or strongly acidic media to remove di- and higher valent metal ions, which can be used within the context of the production of high-purity silica. The invention further relates to the use of special ion exchangers for carrying out the method according to the invention and the resultant high-purity silicas.

Abstract: Phosphonate-containing liquid washing or cleaning agent exhibiting advantageous proteolytic activity and improved storage stability comprising a protease having an amino acid sequence which is at least 80% identical to the amino acid sequence stated in SEQ ID NO. 1 and which comprises in position 99 in the numbering according to SEQ ID NO. 1 the amino acid glutamic acid (E) or aspartic acid (D) or the amino acid asparagine (N) or glutamine (Q) or the amino acid alanine (A) or glycine (G) or serine (S).

Abstract: A suspending device for a rail, in particular a rail of an overhead conveyor or lifting gear, with a tensile element, which comprises a threaded rod and at least one connecting part that is screwed to the latter, and with a securing element, which secures the screw connection between the threaded rod and the connecting part against loosening. The suspending device for a rail, in particular a running rail of a suspended conveyor or lifting gear, allows simplified and secure mounting in that the securing element engages in a groove with a pin part in the assembled state, with the groove being disposed in the threaded rod.

Abstract: An arrangement of a suspension and of a rail is provided, in particular for suspending a travel and/or carrier rail or a lifting gear on a chassis or frame, having a tension element supporting the rail at one end thereof in the region of a profile head by a mounting element, with the head being substantially C-shaped in cross section, and forming a gap running at the top along a longitudinal center plane of the rail. The mounting element comprises a pivotable part that can be pivoted with respect to the tension element, the profile head and the pivotable part being designed such that the pivotable part can be guided through the gap from outside into the profile head in a loading position, and can be pivoted into a mounting position in which the pivotable part contacts the profile head from the inside, bridging the gap.

Abstract: An arrangement of a rail for suspended conveyors or suspended cranes and a slip contact holder mounted thereon, wherein the rail comprises a profile body and a profile head connected thereto and disposed above the profile body, wherein the profile body is C-shaped in cross section, forms a hollow space for chassis, and has a slit open to the bottom, and the profile head comprises upper, substantially horizontal profile walls and the slip contact holder is disposed within the hollow space and attached to the upper profile walls. A plurality of punchouts are disposed in the upper profile walls, disposed in at least one row and at regular, repeated distances as seen in the longitudinal direction of the rail, and barb-like catch pawls are disposed on the slip contact bolder and engage with the punchouts in order to attach thereto.

Abstract: A method for operating an arrangement of equipment that include a pulse generator for generating electrical pulses, a microwave generator with a break-through voltage, and a transmission element is provided. For transmission of the pulses, the pulse generator is connected to the microwave generator via the transmission element, which in the arrangement of equipment, acts as an impedance varying over time. The voltage characteristic over time or the current characteristic over time of each pulse is defined such that in an operating mode, the impedance of the transmission element is matched to the impedance of the microwave generator when the break-through voltage is reached.

Abstract: The present invention relates to a method of purifying strong acids or strongly acidic media to remove di- and higher valent metal ions, which can be used within the context of the production of high-purity silica. The invention further relates to the use of special ion exchangers for carrying out the method according to the invention and the resultant high-purity silicas.

Abstract: It has been found that conventional cheap waterglass qualities in a strongly acidic medium react to give high-purity silica grades, the treatment of which with a base leads to products which can be processed further to give glass bodies with low silanol group contents.

Abstract: An operating light (1) has a housing (2), which has a light exit opening (4); a holding system, which is coupled with housing (2) and is designed to movably hold the operating light; at least one light source (3) as well as at least one corresponding optical system to direct light emitted by the at least one light source (3) in the direction of light exit opening (4). A grip assembly unit (14) is provided approximately in the middle of light exit opening (4). The grip assembly unit (14) has a handle (5) to pivot the operating light (1) into a desired position. At least one rotating ring (11) is located between the handle (5) and the housing (2) and is rotatable in relation to the handle (5) and is designed to set various functions of operating light (1). As an alternative or in addition, a touch-sensitive sensor element (15), which is designed to set various functions of operating light (1), is located between the handle (5) and the housing (2).

Abstract: Contact elements of sophisticated semiconductor devices may be formed for gate electrode structures and for drain and source regions in separate process sequences in order to apply electroless plating techniques without causing undue overfill of one type of contact opening. Consequently, superior process uniformity in combination with a reduced overall contact resistance may be accomplished. In some illustrative embodiments, cobalt may be used as a contact metal without any additional conductive barrier materials.

Abstract: A method for pulsed operation of a linear accelerator includes generating pulses of charged particles. The generating includes emitting particles by a particle source and accelerating the particles in an accelerator device that includes a plurality of linked cavity resonators. The accelerator device is supplied with energy by an energy supply unit. Particle energy is changed solely by varying a number of particles emitted by the particle source per pulse.

Abstract: A radiation unit for generating bremsstrahlung includes an electron accelerator producing the bremsstrahlung, a supply unit disposed in a main unit, and at least one supply line connecting the supply unit and the electron accelerator. The at least one supply line is a waveguide. The at least one supply line has a first longitudinal section running from the supply unit to a terminal disposed on the main unit. The electron accelerator is disposed outside the main unit and is connected to the terminal via a second longitudinal section of the at least one supply line.