Abstract: The present invention provides a network, in particular for an aircraft and spacecraft, comprising a network line and at least two network access devices which are interconnected by the network line and between which data of different levels of priority can be transmitted, the network access devices being formed so as allocate data with a level of priority allocated to the respective data, at least two different levels of priority being provided for the data depending on the relevance of the respective data, and the data being transmitted on the network line in fixed time slots depending on the level of priority assigned in each case. The present invention further provides a method and an aircraft and spacecraft.

Abstract: A method for operating an internal combustion engine is described. A base controlled variable for influencing an actual value of an operating variable of the internal combustion engine is ascertained. The actual value of the operating variable is compared to a setpoint value of the operating variable. A correcting variable is ascertained as a function of the comparison. A controlled variable is ascertained as a function of the base controlled variable and as a function of the correcting variable. An actual value of a state variable of the internal combustion engine is ascertained. A start point in time of a time interval of a critical state change of the internal combustion engine is ascertained as a function of the ascertained actual value of the state variable. The controlled variable is essentially ascertained from an intermediate controlled variable and a correcting variable following the start point in time.

Abstract: The present invention relates to a solar module comprising a first layer, a solar cell arranged above the first layer and a second layer arranged above the solar cell. The first and/or the second layer comprise a fibre composite material which comprises a preferably aliphatic polyurethane polymer “dual cure” system) crosslinked thermally and by means of electromagnetic radiation. The material of the fibres of the fibre composite material is transparent at least in the region of visible light. The invention further relates to the use of this type of solar module and to a process for production thereof.

Abstract: An inspection vehicle (24) for inspecting an air gap (14) between the rotor (11) and the stator (12) of a generator (10) includes drive elements (26, 27) for the independent progressive movement in the air gap (14). A particularly compact construction and flexible application is achieved by the drive elements (26, 27) being formed as elongated, flexionally elastic, torsionally rigid, magnetic rolls.

Abstract: The present invention relates to a method for producing an electromechanical, for example piezoelectric, transducer in which a first polymer layer comprising cutouts is applied to a first continuous polymer layer by means of a printing and/or coating method, a cover is applied to the first polymer layer comprising cutouts in such a way that the cutouts of the first polymer layer comprising cutouts are closed off with the formation of cavities, and the cover is connected to the first polymer layer comprising cutouts. The invention also relates to electromechanical transducers produced by the method according to the invention, and the use of said electromechanical transducers.

Abstract: This invention relates to DVDs made from polycarbonate and a special UV curable bonder material consisting of A) an urethane acrylate oligomer as binder, which is the reaction product of i) one or more polyisocyanates and ii) one or more hydroxyfunctional lactone ester (meth)acrylates having a number average molecular weight of from 200 g/mol to 2000 g/mol and having the formula: CH2?C(R1)—C(O)—O—R2—[O—C(O)—R3]n—OH wherein, n is an integer from 1 to 5, R1 is hydrogen or methyl, R2 represents an alkylene group or substituted alkylene group having from 2 to 10 carbon atoms and R3 represents a straight or branched chain alkylene group of from 3 to 8 carbon atoms, and which may be substituted with one or more alkyl groups having from 1 to 12 carbon atoms, B) a reactive thinner, comprising of mono functional acrylates and/or (meth)acrylates C) a photo initiator and D) optional additives which offers improved performance at high data transfer rates.

Abstract: An autostereoscopic projection screen including a projection area and a control, wherein the projection area includes micromirrors, wherein the control is adapted to adjust orientation of the micromirrors such that the micromirrors can reflect light emitted by an image source into directions creating an image in each direction at a viewing distance such that each image can only be seen by one eye of a viewer located in said direction at said viewing distance, and wherein two images are created at a first viewing distance and spaced apart such that a viewer in the first viewing distance can see one of the two images with a first eye only and the other of the two images with a second eye only, wherein the viewer has the impression of seeing the two images simultaneously. The invention further relates to a method and a system for autostereoscopic projection.

Abstract: A method is presented for compensating for combustion chamber-specific actual values of a parameter, which characterizes combustions, between a plurality of combustion chambers of an Otto engine (10) operated with homogeneous filling of the combustion chambers and homogeneous charge compression ignition, said Otto engine (10) operating with a direct fuel injection and a variable valve drive, wherein the combustion chamber-specific actual values are formed as a function of signals (S—40; S—42) of combustion chamber-specific sensors (40; 42) and wherein deviations of the combustion chamber-specific actual values from a set value are processed to manipulated variables, with which a valve lift of a gas exchange valve (28) of a combustion chamber (12) is changed.

Abstract: A shell-and-tube heat exchanger, for removing volatile substances from a polymer solution by degasification, includes a bundle of tubes arranged vertically and parallel to each other in a shell chamber through which a fluid heat-transfer medium flows. The upper end of each tube is fixed in an upper tube sheet and the lower end of each tube is fixed in a lower tube sheet, and the polymer solution flows through the tubes in the direction of gravity. One feature is that a multilayer woven wire fabric is attached to the top of the upper tube sheet. The finest meshed layer of the fabric has a mesh width of 50 ?m to 1000 ?m. The invention also relates to a method for removing volatile substances from a polymer solution by degasification in a shell-and-tube heat exchanger and use of the shell-and-tube heat exchanger.

Abstract: The present invention relates to a non-aqueous coating composition comprising: 1) 75 to 99 wt. %, preferably 85 to 95 wt. % of a hard urethane(meth)acrylate polymer or oligomer; and 2) 1 to 25 wt. %, preferably 5 to 15 wt. % of a soft unsaturated urethane(meth)acrylate polymer or oligomer containing allophanate groups.

Abstract: A process for preparing acrylic acid from ethylene oxide and carbon monoxide, in which ethylene oxide is carbonylated in an aprotic solvent with carbon monoxide in the presence of a cobalt catalyst system to give poly-3-hydroxypropionate, the cobalt content in the poly-3-hydroxypropionate formed is reduced with the aid of water and/or an aqueous solution as a precipitation and/or wash liquid, and the poly-3-hydroxypropionate is subsequently split by thermolysis to give acrylic acid.

Abstract: A process for preparing acrylic acid by thermolysis of poly-3-hydroxypropionate in the presence of one or more specific tertiary amines as a catalyst.

Abstract: A locating device for locating at least one apparatus which is arrangeable on board a transport unit, for example an aircraft, a locating system having such a locating device and at least one apparatus to be located, an aircraft having a locating system of this type, an associated method for locating at least one apparatus which is to be located and is arrangeable on board a transport unit, for example on board an aircraft, and a computer program for carrying out the method. The locating device includes a detecting unit for detecting a wireless audio signal transmitted by the apparatus to be located; and a computing unit for determining the distance of the apparatus to be located from the detecting unit based on the wireless audio signal and on a first information signal assigned to the audio signal and transmitted via a first deterministic data connection.

Abstract: A method for operating an internal combustion engine in HCCI mode, including: a) sensing a profile of a measured variable of a variable in a combustion chamber of a cylinder; b) identifying combustion feature(s) of a combustion event in a first combustion cycle based on the profile; c) modeling a first value of a state variable at a defined point in time after the first combustion cycle and before a second subsequent combustion cycle based on the identified combustion feature(s); d) determining desired target values of combustion feature(s) of a combustion event in the second subsequent combustion cycle; e) modeling a second value of the state variable at the defined point in time based on the target values; and f) applying control to the internal combustion engine starting at the defined point in time as a function of the first and the second value of the state variable.

Abstract: The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting, at temperatures of ?130° C., A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation (radiation-curing groups), C) optionally NCO-reactive compounds other than B), in the presence of D) a catalyst containing at least one zinc compound, to form allophanate groups by opening the uretdione ring. The present invention also relates to the binders obtained by the process of the invention and to coating compositions containing these binders.

Abstract: A device and a method for actuating an injector in a fuel-injection system of an internal combustion engine are described. Using a first calibration method and based on a control parameter, an injector parameter which characterizes the injection process is determined. Starting from this injector parameter, a first feature is determined for calibrating the injector. A second calibration method determines a second feature for calibrating the injector, based on an engine parameter. The first calibration method is monitored on the basis of the second feature.

Abstract: In a method for operating an injection valve, in particular a fuel injector of an internal combustion engine of a motor vehicle, one component of the injection valve, particularly a valve needle, is disposed in a manner allowing movement relative to other components of the injection valve, and preferably is able to be driven at least partially by an actuator. A structure-borne-noise signal is detected by a structure-borne-noise sensor, and the structure-borne-noise signal is evaluated in order to infer an operating state of the movably disposed component.

Abstract: An interior part, such as an instrument panel, for vehicles, for example motor vehicles is disclosed. The interior part includes an injection-molded rigid carrier with a front side and rear side, at least one groove on the rear side of the carrier, along which the carrier can rupture in order to form an airbag flap. The groove base of the groove lies at a distance from the front side of the carrier. The groove is formed in the mold. The front and rear sides of the carrier have the shape of a closed outer skin. The carrier includes a foamed core at least in the region of the groove.

Abstract: A method for recognizing pre-ignitions in a gasoline engine which occur in the combustion chamber of the gasoline engine, independently of the ignition of a fuel-air mixture by a spark plug. In a method which reliably recognizes the formation of sporadically imminent pre-ignitions, a combustion chamber pressure which occurs prior or subsequent to the ignition point of the spark plug is evaluated for determining the pre-ignition.

Abstract: A beverage brewing system for producing on demand iced tea. The beverage brewing system may include a concentrated beverage brewer, one or more brew water circuits in communication with the concentrated beverage brewer, one or more makeup water circuits, and one or more back pressure valves in communication with the brew water circuits and the makeup water circuits.