Abstract: A fuel cell system for a vehicle, comprising a fuel cell and a water collection device for collecting liquid water from exhaust gas of the fuel cell, comprising an exhaust gas cooler including a heat exchanger which cools the exhaust gas by transferring heat from the exhaust gas to a flow of a cooling medium and condenses water contained in the exhaust gas and comprising a water tank for storing the collected water, a cooling device for cooling the fuel cell comprising a cooler, and a water ejection device for ejecting and distributing water. The water tank may be pressurized. A control means may choose operating modes for the fuel cell system that comprise an operating mode for water collection and an operating mode for water ejection based on a power schedule that comprises a sequence of scheduled operating phases with varying power requirements for the fuel cell system.

Abstract: The invention relates to a magneto-optical light modulator (100) for modulating light based on a physical property provided as an input to the modulator (100), the modulator (100) comprising a substrate (114) with a region of material (130) comprising a film of Eu(1-x)Sr(x)MO3 (112), an optical waveguide (106; 108) adapted for directing light through the region of material (130) and a first control unit, the first control unit being adapted to—maintain the region of material (130) at a constant predefined temperature in case the physical property is an input magnetic field subject to the region of material (130) or—maintain the region of material (130) subjected to a constant predefined magnetic field in case the physical property is an input temperature of the region of material (130), the light modulator (100) being adapted to perform the modulation of the light using the birefringence of the region of material (130), the birefringence depending on the physical property.

Abstract: A radar device for transmitting a signal in a frequency range with a control system and an oscillator. An input of the oscillator is connected to the control system via a converter. The oscillator can be activated by the control system to generate the signal and the signal generated by the oscillator can be tapped at an output of the oscillator, with at least one transmission antenna for transmitting the signal at the output of the oscillator. The transmission antenna is connected to the output of the oscillator, with at least one receive channel for receiving a receive signal, for processing the receive signal and for forwarding the processed receive signal to the control system. The receive channel features at least one receive antenna and a mixer for mixing the receive signal with the signal at the output of the oscillator. The mixer is connected to the output of the oscillator. A frequency divider is provided that feeds signals from the oscillator to a frequency counter.

Abstract: The invention relates to a magneto-optical light modulator (100) for modulating light based on a physical property provided as an input to the modulator (100), the modulator (100) comprising a substrate (114) with a region of material (130) comprising a film of Eu(1-x)Sr(x)MO3 (112), an optical waveguide (106; 108) adapted for directing light through the region of material (130) and a first control unit, the first control unit being adapted to—maintain the region of material (130) at a constant predefined temperature in case the physical property is an input magnetic field subject to the region of material (130) or—maintain the region of material (130) subjected to a constant predefined magnetic field in case the physical property is an input temperature of the region of material (130), the light modulator (100) being adapted to perform the modulation of the light using the birefringence of the region of material (130), the birefringence depending on the physical property.

Abstract: A radar device for transmitting a signal in a frequency range with a control system and an oscillator. An input of the oscillator is connected to the control system via a converter. The oscillator can be activated by the control system to generate the signal and the signal generated by the oscillator can be tapped at an output of the oscillator, with at least one transmission antenna for transmitting the signal at the output of the oscillator. The transmission antenna is connected to the output of the oscillator, with at least one receive channel for receiving a receive signal, for processing the receive signal and for forwarding the processed receive signal to the control system. The receive channel features at least one receive antenna and a mixer for mixing the receive signal with the signal at the output of the oscillator. The mixer is connected to the output of the oscillator. A frequency divider is provided that feeds signals from the oscillator to a frequency counter.

Abstract: In the laser doping method in accordance with the invention firstly a medium containing a dopant is brought into contact with a surface of the solid-state material. Then, by beaming with laser pulses, a region of the solid-state material below the surface contacted by the medium is melted so that the dopant diffuses into the melted region and recrystallizes during cooling of the melted region. The laser beam is focussed linearly on the solid-state material, the width of the linear focus being preferably smaller than 10 ?m.

Abstract: A system for displaying pictures in a rear projection television set including projection optics (2) disposed in the housing of the television set and connected to an illumination unit (1), with a picture transmitter (13) having a digital tilt mirror matrix (DMD matrix), the picture modulated by the picture transmitter (13) being projected by the projection optics (2) onto the rear side of a screen (7). The projection optics (2) include a first and second part optics (8, 9) lying on a common optical axis (11) that are provided at the same time for illumination. The light coming from the illumination unit passes via third part optics (10) and via at least one deflection element (15) into the second part optics (9). In the optical path of the front region of the projection optics an “off axis” mirror (5) and at least one deflection element (15) bend the optical path.

Abstract: A load-bearing structure for motor vehicles has a load-bearing floor of lightweight construction merging at its front in a footwell region into an upwardly projecting end wall. The structure also has a front-end structure which forms a crumple zone, is supported in the region of the end wall, and includes lightweight structural panels running in the longitudinal and transverse directions of the vehicle. The footwell region is bounded laterally and at the top by a panel arrangement of lightweight construction which, together with the floor and the end wall, forms a supporting box for the front-end structure.

Abstract: The invention relates to a motor vehicle with a supporting structure provided at one end of a safety passenger compartment with a crumple zone and two wheel arches located in the vicinity of the crumple zone on the sides. A wheel is located in each respective wheel arch held by wheel guide members. A deflecting area extends diagonally to a central lengthwise axis of the motor vehicle for the associated wheel, between the safety passenger compartment and the rolling circumference of the two wheels in the straight-ahead position of the deflecting surface for the associated wheel against which the wheel moved by the crash-produced deformation of the crumple zone against the deflecting surface is deflected past the end of the safety passenger compartment. The deflecting surfaces are diagonally downwardly directed deflecting ramps by which the wheels are directed toward the safety passenger compartment and below the floor of the motor vehicle as the crumple zone collapses.

Abstract: A support structure for a vehicle is comprised primarily of multi-walled lightweight panels with plane-parallel flat sides, and at least one fitting can be fastened to the support structure. An opening is cut out of a lightweight panel of the support structure that is designated for the fitting, and the fitting can be installed in this opening, covering the opening completely. A support arrangement attached to the fitting operates in conjunction with the edge of the opening in the lightweight panel as an installation stop for the fitting.

Abstract: A sight glass assembly for a water heater flame trap and a method of making same is disclosed. A rectangular-shaped sight glass frame casing being comprised of a thin metal plate further comprising a rounded rectangular cut-out window and two metal tabs on opposite sides of the casing acting as a retainer to hold the planar transparent material of the sight window tight to the rectangular-shaped gasket. The metal frame casing of the sight glass assembly attaches to the exterior of the flame trap compartment of the hot water heater by: (a) either inserting the tabs, further comprising metal clips, into the gasket whereby they expand, locking the metal frame casing in place; or in a second embodiment (b) riveting the tabs, now in the shape of a flange, directly to the hot water heater shell. The metal frame casing is formed by a metal stamping procedure that allows for easier and more economic manufacture of the sight glass retainer.

Abstract: A sight glass assembly for a water heater flame trap and a method of making same is disclosed. A rectangular-shaped sight glass frame casing being comprised of a thin metal plate further comprising a rounded rectangular cut-out window and two metal tabs on opposite sides of the casing acting as a retainer to hold the planar transparent material of the sight window tight to the rectangular-shaped gasket. The metal frame casing of the sight glass assembly attaches to the exterior of the flame trap compartment of the hot water heater by: (a) either inserting the tabs, further comprising metal clips, into the gasket whereby they expand, locking the metal frame casing in place; or in a second embodiment (b) riveting the tabs, now in the shape of a flange, directly to the hot water heater shell. The metal frame casing is formed by a metal stamping procedure that allows for easier and more economic manufacture of the sight glass retainer.

Abstract: The compression refrigeration unit includes a compressor, a gas refrigeration unit, an expansion apparatus, and an evaporator, which are connected to one another in a circulation system, which contains a coolant, characterized in that the degree of filling of the coolant is between 50% and 100% of the critical density of the coolant. Preferably the coolant is carbon dioxide and the degree of filling of the carbon dioxide coolant is between 0.25 and 0.45 kg/L. Also provided, in another embodiment, is an intermediate heat exchanger with a first heat exchanger branch and a second heat exchanger branch, connected to the first heat exchanger branch by a thermic coupling, wherein the first heat exchanger branch is connected to the gas refrigeration unit and the expansion apparatus and the second heat exchanger branch are connected to the evaporator and the compressor.

Abstract: A shielding sleeve (19) for SQUID-magnetometers which serves to shield from electromagnetic interference fields, consists of an electrically conductive shielding material so as to obtain adequate RF shielding in conjunction with a low noise contribution, completely envelops a non-shielding cryostat (10), has a predetermined sheet resistance and consists of at least one layer of the shielding material in order to avoid an increase of the magnetometer overall noise.

Abstract: Chromatographic material comprising porous silica microspheres having silanol-enriched and completely silanized surfaces are disclosed. Processes for preparing the specified chromatographic material are also disclosed.

Abstract: Chromatographic materials comprising porous silica microspheres having silanol-enriched and completely silanized surfaces are disclosed. Processes for preparing the specified chromatographic material are also disclosed.

Abstract: Chromatographic materials comprising porous silica microspheres having silanol-enriched and completely silanized surfaces are disclosed. Processes for preparing the specified chromatographic material are also disclosed.

Abstract: A microwave component including an aerial comprised of at least a planar electrically conducting radiating element (3), arranged on a surface of a dielectric substrate (1). The surface is opposite a bearing surface which is at least partially covered with an electrically conducting layer serving as a ground plane (5). The microwave component further contains a microwave circuit used for processing and/or producing aerial signals. A dielectric film (2) is laid around the substrate (1). One side of this film (2) contains the radiating element (3), the ground plane (5) being arranged on the inside surface and the microwave circuit being arranged opposite the ground plane (5) on the outside surface. The aerial is further connected to the microwave circuit via a feeder line (4).

Abstract: A method for measuring the physical temperature of objects by means of microwaves using a Dicke radiometer. A noise signal is continuously applied to an antenna which is directed towards the object and is periodically and alternately applied, together with the antenna signal, which includes reflected noise and object emission to the radiometer. The integrated output signal of the radiometer controls the noise power and is proportional to the object temperature.