Abstract: A process for the production of antibacterial and antiviral coatings with niobium and copper-doped titanium dioxide includes preparing a dispersion comprising Cu,Nb-doped TiO2 particles; optional crushing of the particles in the dispersion; and applying the dispersion to a substrate.

Abstract: A design method, for processes forming and assembling parts, begins by simulating a forming process (2) to generate a sprung back part simulation model (30) that corresponds to a reference geometry (10) of the formed part (3). Next, an assembly simulation (40) uses this sprung back model (30) to create an assembled sprung back part simulated model (50). If the geometry of this assembled model (50) does not match the reference geometry (10), a compensated sprung back part geometry (60) is iteratively adapted, and the assembly simulation (40) is repeated until the assembled model (50) aligns with the reference geometry (10). The final optimized geometry (60) can then be used to design and manufacture both the parts and the tools needed for forming them. The method avoids an iterative repetition of forming simulations, which allows a user interacting with the process to work in a more efficient manner.

Abstract: A composition including a photoinitiator and an azo compound are cured with the formation of bubbles. The method can also be carried out in a multi-stage method involving irradiation and heating.

Abstract: A device for forming a sheet-metal blank, the device including: a press frame; a tool top part including an outer die and an inner die; a tool base part including a punch and a sheet-metal holder; at least one drive assigned to the tool top part and/or the tool base part; and an annular sheet-metal holder surrounding the punch and having a support face; wherein one drive is in each case assigned to the inner die on the one hand, and to the outer die and the sheet metal holder on the other hand, and the one drive displaces the inner die and the outer die at different speeds in the drawing direction. A method of forming a sheet-metal blank including: using the device during a starting period, an intermediate phase, and a final phase where the movement and/or direction of the two dies vary.

Abstract: A computer-implemented method for simulating and optimising a process of forming and assembling parts comprises simulating a forming process (2) by a forming simulation (20), thereby generating a sprung back part simulation model (30) corresponding to a reference geometry (10) of the at least one formed part (3); simulating an assembly process (4) by an assembly simulation (40), based on the sprung back part simulation model (30) of the at least one formed part (3), and generating an assembled sprung back part simulated model (50). Therein, if the geometry of the assembled sprung back part simulated model (50) does not match the reference geometry (10), a compensated sprung back part geometry (60) is iteratively adapted, and the assembly simulation (40) based on this is repeated until the assembled sprung back part simulated model (50) matches the reference geometry (10), resulting in an optimised compensated sprung back part geometry (60).

Abstract: A device for forming a sheet-metal blank, the device comprising: a press frame; a tool top part including an outer die and an inner die; a tool base part including a punch and a sheet-metal holder; at least one drive assigned to the tool top part and/or the tool base part; and an annular sheet-metal holder surrounding the punch and having a support face; wherein one drive is in each case assigned to the inner die on the one hand, and to the outer die and the sheet metal holder on the other hand, and the one drive displaces the inner die and the outer die at different speeds in the drawing direction. A method of forming a sheet-metal blank comprises using the device during a starting period, an intermediate phase, and a final phase where the movement and/or direction of the two dies vary.

Abstract: The invention relates to an apparatus, an installation and a method for machining a workpiece made of metal, such as steel, by a machining processes such as forming, pressing, drawing, compressing and cutting. The invention includes at least two tools and a drive associated with the tools for their movement and for carrying out the machining process. The drives are arranged in such a way that when travelling on trajectories the tools have different speeds over at least a part of their trajectories.

Abstract: The invention relates to an apparatus, an installation and a method for machining a workpiece made of metal, such as steel, by a machining processes such as forming, pressing, drawing, compressing and cutting. The invention includes at least two tools and a drive associated with the tools for their movement and for carrying out the machining process. The drives are arranged in such a way that when travelling on trajectories the tools have different speeds over at least a part of their trajectories.

Abstract: Use of benzotriazole derivatives of formula (1), wherein R1 is C1-C30alkyl; C1C5alkoxy; C1-C5alkoxycarbonyl; C5-C7cycloalkyl; C6-C10aryl; aralkyl; —SO3M; a radical of formula (1a) R3 is hydrogen; C1C5alkyl; C1C5alkoxy; halogen, preferably Cl; or hydroxy; R4 and R5 are each independently of the other hydrogen; or d-C5alkyl; m is 1 or 2; n is O or 1; if m=1, R2 is hydrogen; unsubstituted or phenyl-substituted d-C1-C12alkyl; or C6-C10aryl; if m=2, R2 is the direct bond; or —(CH2)p—; and p is 1 to 3; for enhancing the photostability of cosmetic or dermatologic compositions comprising at least one further organic UV absorber.

Abstract: Use of benzotriazole derivatives of formula (1), wherein R1 is C1-C30alkyl; C1C5alkoxy; C1-C5alkoxycarbonyl; C5-C7cycloalkyl; C6-C10aryl; aralkyl; —SO3M; a radical of formula (1a) R3 is hydrogen; C1C5alkyl; C1C5alkoxy; halogen, preferably Cl; or hydroxy; R4 and R5 are each independently of the other hydrogen; or d-C5alkyl; m is 1 or 2; n is O or 1; if m=1, R2 is hydrogen; unsubstituted or phenyl-substituted d-C1-C12alkyl; or C6-C10aryl; if m=2, R2 is the direct bond; or —(CH2)p—; and p is 1 to 3; for enhancing the photostability of cosmetic or dermatologic compositions comprising at least one further organic UV absorber.

Abstract: In a method for detecting an offset drift in a resistive Wheatstone measuring bridge, a switch is made between a measuring mode and a testing mode without interfering in the internal structure of the measuring bridge. In testing mode, two sensor resistors that act in the same way and lie in different bridge arms in the measuring mode are connected in series, and a voltage level occurring in the connection of these sensor resistors is compared with a reference voltage. Preferably the sensor resistor that acts in a different way and lies between the two series-connected sensor resistors acting in the same way is bridged. The reference voltage is advantageously formed by resistive division of the voltage applied to the series connection of the sensor resistors. The testing mode may expediently be switched in such a way that the two pairs of sensor resistors acting in the same way are respectively tested in succession.

Abstract: A process for producing propylene from methanol, wherein methanol vapor is reacted on a first catalyst to obtain a first vapor mixture containing dimethyl ether (DME), which is reacted on a form-selective zeolite catalyst disposed as bed in at least two series-connected shaft reactors to produce a product mixture containing propylene.

Abstract: This invention relates to a process of producing C2- to C4-olefins from steam and a feed mixture containing C4- to C8-olefins, wherein the feed mixture containing steam is introduced into a reactor with an inlet temperature of 300 to 700° C., said reactor comprising a bed of granular, form-selective zeolite catalyst, and wherein a product mixture containing steam and C2- to C4-olefins is withdrawn from the bed and is passed through at least one cooling means.

Abstract: The invention relates to the use of 1-(aminoalkyl)-3-quinoxaline-2-one derivatives, especially 1-diethylaminoethyl-3-quinoxaline-2-one derivatives of the formula (I), where R 3 is hydroxy, methoxy, ethoxy or hydrogen, or pharmaceutically compatible salts thereof, for the preparation of compounds having an antioxidant action and used for preventing or treating diseases caused by free radicals of the cellular oxygen metabolism, stimulating nerve cell growth, antagonizing glutamate receptors and/or stimulating the growth notably of glutamergic nerve cells.