Abstract: A Marx generator has at least two branches for providing a Marx voltage at an output pole. Each of the branches has a plurality of capacitor stages with voltage poles, cross branches with spark gaps, a last capacitor stage at its output end, and a first capacitor stage connected to an operating voltage. The branches have a common triggering section with a common first capacitor stage, a first adjacent cross branch, and an input pole. Each of the branches has the triggering section and also an individual portion with at least one capacitor stage that is only associated with the branch. A resonator arrangement contains the Marx generator and resonators at the respective output poles of the branches. A radiation arrangement has the resonator arrangement and a multi-feed waveguide with at least two of the resonators for respectively feeding an electromagnetic wave.

Abstract: A Marx configuration has a housing surrounding an interior, and a Marx generator arranged in the interior. The Marx generator has a plurality of capacitor stages connected in series, each having at least one first and one second voltage terminal, and respective cross branches. Each two adjacent capacitor stages between the first terminal of the preceding and the second terminal of the following capacitor stage are connected by one of the cross branches. Each of the cross branches contains a spark gap, a sealed gas space for an insulating gas for the spark gaps which are arranged in the interior and at least two of the spark gaps. All spark gaps are arranged in a respective gas space, and the interior contains a sealed fluid space for a cooling fluid for the Marx generator. A base support disposed in the interior and surrounds the gas space partially.

Abstract: A fragmentation system for electrodynamic fragmentation of material contains a feed and an outlet for transporting material along a transport path in a transport direction. At least one high-voltage pulse source is provided, each of the high-voltage pulse sources contains at least one first electrode and at least one second electrode for generating a high-voltage discharge in a discharge chamber. The transport path has a fractionation section, and the fractionation section extends through the discharge chamber. A selection device for selectively extracting the material on the transport path is provided in order to channel material and/or fragments of the material having a diameter smaller than a minimum diameter past at least one portion of one of the fractionation sections.

Abstract: A Marx generator has at least two branches for providing a Marx voltage at an output pole. Each of the branches has a plurality of capacitor stages with voltage poles, cross branches with spark gaps, a last capacitor stage at its output end, and a first capacitor stage connected to an operating voltage. The branches have a common triggering section with a common first capacitor stage, a first adjacent cross branch, and an input pole. Each of the branches has the triggering section and also an individual portion with at least one capacitor stage that is only associated with the branch. A resonator arrangement contains the Marx generator and resonators at the respective output poles of the branches. A radiation arrangement has the resonator arrangement and a multi-feed waveguide with at least two of the resonators for respectively feeding an electromagnetic wave.

Abstract: A fragmentation system for electrodynamic fragmentation of material contains a feed and an outlet for transporting material along a transport path in a transport direction. At least one high-voltage pulse source is provided, each of the high-voltage pulse sources contains at least one first electrode and at least one second electrode for generating a high-voltage discharge in a discharge chamber. The transport path has a fractionation section, and the fractionation section extends through the discharge chamber. A selection device for selectively extracting the material on the transport path is provided in order to channel material and/or fragments of the material having a diameter smaller than a minimum diameter past at least one portion of one of the fractionation sections.

Abstract: A defense device for combating an unmanned aircraft includes a communications device configured for receiving communications information transmitted by at least one external signal source, an emitting device configured for producing and emitting a high-energy electromagnetic pulse in the event of triggering of the emitting device, and a control device configured to trigger the emission of the high-energy electromagnetic pulse depending on communications information received by the communications device. A protective configuration for combating an unmanned aircraft and a method for operating a protective configuration are also provided.

Abstract: A defense device for combating an unmanned aircraft includes a communications device configured for receiving communications information transmitted by at least one external signal source, an emitting device configured for producing and emitting a high-energy electromagnetic pulse in the event of triggering of the emitting device, and a control device configured to trigger the emission of the high-energy electromagnetic pulse depending on communications information received by the communications device. A protective configuration for combating an unmanned aircraft and a method for operating a protective configuration are also provided.

Abstract: A microwave generator has a resonator with two mutually spaced resonator electrodes. The resonator electrodes provide a spark gap device which breaks down upon the application of a firing voltage between them. The spark gap device has at least two parallel-connected spark gaps.

Abstract: High-voltage switch, in particular for a microwave generator, which includes a spark gap which breaks down in order to switch when a high voltage is applied provided is a plurality of parallel-connected spark gaps (12, 12a, 12b), each having at least one electrode (13, 13a, 13b) with a series-connected fuse (14, 14a, 14b) which is irreversibly destroyed when the respective spark gap (12, 12a, 12b) breaks down.

Abstract: The invention relates to a method for coating sheet-form textile materials, in which there is applied to a sheet-form textile material an aqueous dispersion containing anionically modified polyurethane ureas comprising (A) aromatic diisocyanate, (B) polyether polyol having a mean molecular weight greater than 1500, (C) at least one compound containing from 1 to 2 isocyanate-reactive groups and at least one ionogenic group, (D) polyamine having a mean molecular weight of at least 32, and (E) water, wherein the mean total functionality of the isocyanate-reactive compounds B to D is from 1.85 to 2.2, the molar ratio of the isocyanate groups of component A to the isocyanate-reactive groups of components B to D is greater than 1, and the polyurethane ureas have a content of from 800 to 1500 mmol of urethane groups/kg of anionically modified polyurethane urea and a content of from 800 to 1800 mmol of urethane plus urea groups/kg of anionically modified polyurethane urea.

Abstract: In order to make it possible to direct sufficient microwave energy at a target with an electronic device which is to be interfered with or to be destroyed, the beams (7) from at least two antenna arrays (10) are focused on an effective area (8) in the vicinity of that target, preferably from a vehicle (3) which is equipped with these arrays (10). For effective super-imposition of the emitted microwave energy (7) in the emission direction of in each case one of the arrays (10), the use of an arc for discharging the capacitance (43) of the resonator via its spark gap (13) is observed, and is recorded quasi-continuously optoelectronically. The electrode separation of the spark gap (13) or the fluid pressure of the dielectric in the vicinity of the spark gap (13) is then varied by control elements such that all of the spark gaps (13) in an array (10) ignite virtually at the same time, so that their discharge current pulses which lead to the emission of the microwave energy (7) start virtually in phase.

Abstract: A microwave generator (10) having a hollow central electrode (12) with a front face including hollow emmission element (18), and having an outer electrode (14), which coaxially surrounds the central electrode (12) along an axially extending resonator section (16). The two electrodes (12, 14) define a spark gap (36) and are connected to a high-voltage source (38). An ultracompact microwave generator (10) is implemented by the high-voltage source (38) being arranged in the hollow central electrode (12) of the microwave generator (10) rather than on the outside thereof.

Abstract: A microwave generator has at least one resonator with two mutually opposite resonator electrodes which are separated by a spark gap. The spark gap breaks down when a high-voltage is applied. The resonator electrodes are designed in the area of the spark gap such that they result in a two-dimensional or three-dimensional section with a substantially constant, minimum electrode separation.

Abstract: The present invention relates to polyurethane ureas dissolved in organic solvents, which may be used as an adhesive coat for the coating of textiles.

Abstract: The invention relates to a method for coating sheet-form textile materials, in which there is applied to a sheet-form textile material an aqueous dispersion containing anionically modified polyurethane ureas comprising (A) aromatic diisocyanate, (B) polyether polyol having a mean molecular weight greater than 1500, (C) at least one compound containing from 1 to 2 isocyanate-reactive groups and at least one ionogenic group, (D) polyamine having a mean molecular weight of at least 32, and (E) water, wherein the mean total functionality of the isocyanate-reactive compounds B to D is from 1.85 to 2.2, the molar ratio of the isocyanate groups of component A to the isocyanate-reactive groups of components B to D is greater than 1, and the polyurethane ureas have a content of from 800 to 1500 mmol of urethane groups/kg of anionically modified polyurethane urea and a content of from 800 to 1800 mmol of urethane plus urea groups/kg of anionically modified polyurethane urea.

Abstract: This invention relates to solutions of polyurethaneureas in ?-butyrolactone or mixtures of ?-butyrolactone with toxicologically acceptable organic solvents. A process for coating substrates using these polyurethaneurea solutions, and substrates coated by said process are also provided. The substrates coated according to the invention are preferably textile products or leather, but materials such as wood or concrete can also be coated according to the invention.

Abstract: Intensive microwave radiation in particular of great band width and energy over a relatively long period of time in the form of long pulse packets with a high pulse repetition frequency and a very high frequency spectrum can be achieved if microwave irradiation is effected during the discharge of a capacitive high-voltage generator (35) by way of the antenna (26) into a series of successive capacitors (13) to be connected in parallel. They are preferably constructed in the form of a concentric stack, connected to the antenna (26), of which the outer electrodes (16) which are at a reference potential are in the form of a continuous tube within which annular electrodes (15) are disposed on a carrier (20) in axially spaced relationship with each other in such a way that at the same time they act as the electrodes of arc switches (39) for successively switching on subsequent capacitors (13).

Abstract: The invention concerns ionic and/or non-ionic hydrophilic, aqueous polyurethane-polyurea dispersions (PU dispersions) based on polycarbonate polyols and polytetramethylene glycol polyols, a process for their production and their use as coating compositions, in particular for the production of very stable thick foam deposits in a single coat.

Abstract: The invention relates to a reactive composition containing A) an isocyanate-containing compound, B) a polyol, C) an organic tin or bismuth compound, D) a thiol group-containing compound or a polyphenol which is able to react with an isocyanate group in the presence of a tertiary amine as activator and with adjacent hydroxyl groups and E) a hydrolyzable halogen compound, wherein the molar ratio SH and/or OH:metal is 2 to 500 and the molar ratio halogen/metal is 0.05 to 10.

Abstract: In the method of inputting information in an electrical unit, after input of an alphabetic character the character itself, or, for the case in which one or more characters have been input prior to the input of the alphabetic character, the character string formed by the first to the last input character is compared with information entries in a comparison set of information, and, when the input character is the same as the first character of one of the information entries in the comparison set or when the character string agrees with the beginning of one of the information entries in the comparison set, this information entry is offered for input to the electrical unit. The information entry offered for input is preferably displayed with all its characters on a display device prior to input. The offered information entry can then be rejected by the operator of the electrical unit by inputting another alphabetic character immediately following input of the alphabetic character.