Abstract: The invention relates to an alkali-free aluminoboro-silicate glass which has the following composition (in % by weight, based on oxide): SiO2 >60-65; B2O3 6.5-9.5; Al2O3 14-21; MgO 1-8; CaO 1-6; SrO 1-9; BaO 0.1-3.5; with MgO+CaO+SrO+BaO 8-16; ZrO2 0.1-1.5; SnO2 0.1-1; TiO2 0.1-1; CeO2 0.01-1. The glass is particularly suitable for use as a substrate glass in display technology.

Abstract: A support is constructed for holding an accessory of an internal combustion engine and for guiding an operating medium of the internal combustion engine. In order to expand the range of applications of the support, it is designed for accommodating several accessories and for guiding cooling liquid from a cylinder housing to a radiator.

Abstract: A method for monitoring the execution of a program executable on at least one microprocessor of a micro controller using a debug logic of the micro controller, with an exception, particularly an interrupt of the program execution, being triggered by the debug logic upon access to a specific address range during the program execution time. In order to provide monitoring of the execution of a program, executable on a microprocessor, for faults, which is particularly reliable yet conserves resources as much as possible, it is suggested that the debug logic be configured by the microprocessor and that an exception routine be executed by the debug logic after an exception has been triggered during the program execution time. The debug logic is advantageously configured during the startup of the micro controller. Preferably, the micro controller is reset and started up again and the monitored program is initialized during the execution of the exception routine.

Abstract: A cooling device for an internal combustion engine is installed in a motor vehicle, especially in a passenger car. The cooling device has several radiators, which are disposed in a front section of the passenger car and connected over pipelines with the internal combustion engine. For reasons of space and to improve the effect, the cooling device in the front section, comprises a radiator, which extends transversely to the longitudinal direction of the vehicle, and two lateral radiators, which extend obliquely to a longitudinal central plane. Through the agency of a collecting device with cooling water outlet pipelines, the radiators are connected to a common supplying pipeline, which is connected with the internal combustion engine. Moreover, downstream from the internal combustion engine, there is a returning pipeline, which is connected with a branching device, from which the cooling water-returning pipelines lead to the radiators.

Abstract: To determine the height of a surveying apparatus (1) above a point (15) on the ground, the surveying apparatus (1) has a distance measuring device and is provided with a front attachment (11) which is mounted on the telescope (8) and effects beam deflection and simultaneous beam divergence of an emitted infrared or laser beam towards the point (15) on the ground. The light beam is deflected around the surveying apparatus (1) and a stand (2) carrying the apparatus. Exact sighting of the point (15) on the ground is no longer necessary. The height is calculated as a function of the distance between the point on the ground and the rotary position of the telescope (8), which distance is in any case relatively accurately measurable in the apparatus.

Abstract: The present invention concerns a savory snack product with two layers of a whipped and baked savory sponge and a filling in-between, with the sponge having an aw value of between about 0.6 and 0.85, a pH value of between about 3.5 and 5.5 and an overrun of between about 30 and 170%, and the filling being a water-in-oil emulsion that has an aw value of between about 0.6 and 0.85, a pH of between about 3.5 and 5.5 and an overrun of below about 150%.

Abstract: A method for protecting a microcomputer system against manipulation of data stored in a storage arrangement of the microcomputer system, in particular for protecting a program stored in the storage arrangement. The microcomputer system includes a microcomputer assigned to the storage arrangement, the microcomputer accessing the storage arrangement for the purpose of processing the data, i.e., the program.

Abstract: Membrane module and process for its manufacture, wherein the membrane module contains at least two groups of hollow-fiber membranes, the groups arranged in layers and capable of being fed independently by fluids. The membrane module has a housing shell comprising a channel-shaped housing middle section, open at the top, and adjoining end pieces, also open at the top and with a number of arms corresponding to the number of groups. The groups of hollow-fiber membranes are inserted as layers over one another such that they are arranged in the direction of the longitudinal extent of the housing middle section and substantially parallel to each other. The ends of hollow-fiber membranes of different groups are arranged in respectively different arms of the end pieces and embedded with a sealing compound such that at least one end of the hollow-fiber membranes is open.

Abstract: A nondestructive method for determining the thickness of a metallic protective layer (2) on a metallic base material (1), characterized in that the thickness of the metallic protective layer (2) is determined by detection of a different type of layer (3) which is situated between the metallic protective layer (2) and the metallic base material (1), by ultrasound, eddy-current or (pulsed) thermography. Consideration may be given to a nonmetallic layer (3) of oxides or carbides, a metallic layer (3) of pure nickel or a layer (3) with depleted Al and Ti content in that region of the base material which is close to the surface. This method can be used for turbine blades which are provided with MCrAlY in order to determine the layer thickness, for example during the test phase of coating, and to avoid the known destruction of the turbine blade, which is labor- and cost-intensive.

Abstract: An alkali metal-free aluminoborosilicate glass is described which has the following composition (in % by weight based on oxide):SiO.sub.2 57-60; B.sub.2 O.sub.3 6.5-9.5; Al.sub.2 O.sub.3 14-17.5; MgO 5-8; CaO 1-4; SrO 5-8; BaO 0-3.5; with MgO+CaO+SrO+BaO 15-17; ZrO.sub.2 0.4-1.5; TiO.sub.2 0.4-1.5; CeO.sub.2 0.1-0.5; SnO.sub.2 0.2-1.The glass is particularly suitable for use as a substrate glass in display technology.

Abstract: An optical parameter oscillator system is proposed for use in a continuous wave pump laser system having a single-frequency pump source. The system comprises a single-resonance resonator having a nonlinear medium to produce a first and second parametrically generated wave in response to the pump wave from the single-frequency pump source. The system includes means for controlling the cavity length of the resonator, means for controlling the pump frequency of the pump source and means for controlling the temperature of the nonlinear medium. The system provides for a reliable singly-resonant optical parametric oscillator capable of emitting laser light with high spectral purity and frequency stability over a wide spectral range and is resistant to mode hopping.

Abstract: Described is an alkali-free aluminoborosilicate glass with a viscosity of 10.sup.13 dPas at a temperature of above 700.degree.0 C., a processing temperature V.sub.A of less than 1220.degree.0 C., and very good chemical stability, which can be produced in a float unit and has the following composition, in % by weight based on oxide:______________________________________ SiO.sub.2 48 -- <55 B.sub.2 O.sub.3 7 -- 15 Al.sub.2 O.sub.3 >20 -- 26 MgO 0 -- 8 CaO 4 -- 12 BaO 0 -- 2 SrO 0 -- 2 ZnO 1 -- 8 ZrO.sub.2 0 -- 2 SnO.sub.2 0.5 -- 2 ______________________________________The glass is especially suitable for use in display technology.

Abstract: A coolant circuit contains an expansion tank to which at least one vent line is connected which is connected with an internal-combustion engine and/or a radiator. In order to shorten the warm-up phase of the internal-combustion engine, a stop valve is provided to block the connection of the vent line to the expansion tank during the warm-up phase. As a result, the coolant situated in the expansion tank is not circulated in the short circuit.

Abstract: The invention pertains to a process and a device for determining the composition and concentration of elements in material samples using laser-based plasma emission spectroscopy. The process comprises the following steps: a) transformation of a portion of the material sample (20) to be analysed to a plasma-like state (46) by means of a pulsed high-power laser (12) focussed on the material sample (20); b) spectral analysis of the radiation emitted by the plasma (46) using a spectrometer (26); c) measurement of the total emission spectrum (44) of the plasma (46) changing per laser pulse in one or more spectral ranges typical of the element, using a detector (40); and d) calculation of the composition and concentration of the elements based on the entire spectrum (44) of measured emissions, i.e. the sum of a number of measured individual spectra (42). The claimed device (10) comprises a high-power laser (12), a spectrometer (26) and at least one measuring head (14) with integrated radiation optics (22).

Abstract: An alkali-free aluminoborosilicate glass preferably with a thermal expansion .alpha..sub.20/300 of about 3.7 .times.10.sup.-6 /K, an annealing temperature OKP of above 700.degree. C., a treatment temperature V.sub.A of less than 1220.degree. C., and very good chemical stability, which can be produced in a float unit and has the following composition (in % by weight based on oxide): SiO.sub.2 52-62; B.sub.2 O.sub.3 4-14; Al.sub.2 O.sub.3 12-20; MgO 0-8; CaO 4-11; BaO 0-2; ZnO 2-8; ZrO.sub.2 0-2; SnO.sub.2 0-2. The ratio of Al.sub.2 O.sub.3 /B.sub.2 O.sub.3 is preferably equal to or greater than 3. The glass is especially suitable for use in display technology.

Abstract: A multi-cylinder internal combustion engine with a vacuum and an exhaust gas system is provided with a feed device for secondary air into the exhaust gas system and with an external exhaust gas return. The lines required for this are integrated into the housing to a substantial extent and are used for feeding secondary air during the warm-up phase as well as for subsequent exhaust gas return.

Abstract: A method for measuring the reciprocal displacement of the layers of a multilayer arrangement provided with conductors in described. The knowledge of the displacement makes it possible to in each case fix a suitable position for the holes through the multilayer arrangement to be subsequently produced and which are used for the electrical connection of the conductor planes. For this purpose, in a clearly defined position, each layer carries an optically recognizable pattern, said patterns at least partly being superimposed in the multilayer arrangement. In the multilayer arrangement at least one inspection hole is produced, which intersects the pattern of each layer. The cutting edges of each pattern are optically detected in the inspection hole and the position thereof is used for determining the reciprocal displacement of the layers.

Abstract: A method for producing a hollow filament package by winding at least one hollow filament onto a rotating body in a plurality of layers in the form of coils using a traversing filament guide device, so that the coils form an angle with the longitudinal axis of the body, wherein the speed of rotation of the body and the traverse speed of the filament guide device are adapted to one another in such a way that, per layer, a plurality of first coils are laid down side by side between the end sections of the body and, after each forming of a first hollow filament coil, the speed of rotation of the body and/or the traverse speed of the filament guide device is changed in such a way that second hollow filament coils are formed on the first or the second end section, the second coils forming an angle with the longitudinal axis of the core greater than the angle formed by the first coils.

Abstract: An internal-combustion engine has a rocker lever valve gear equipped with a roller for the cam-controlled actuating of charge cycle valves. Each rocker lever of the rocker lever valve gear has an arm provided with a circular-arc-shaped longitudinal part. Along the longitudinal part, an abutment point can be shifted as a function of parameters of the internal-combustion engine. The resulting changed leverages on the rocker lever vary the valve lift.

Abstract: In a method for manufacturing hollow fiber piles, at least one hollow fiber strand is wound spirally onto a rotating drum having a polygonal cross section to form superimposed hollow fiber layers thereon, forming a hollow fiber roll on the drum. Once the desired number of hollow fiber layers has been formed on the rotating drum, segments of a desired shape are separated from substantially planar regions of the hollow fiber roll. Simultaneously, or immediately following this separation, adjacent end regions of the hollow fibers are connected with one another at least spotwise.