Abstract: A beta container for an alpha-beta port system includes a sheath for receiving transport material and a flange part having a through opening for transferring the transport material from and/or into the sheath, a first interface for a reversible connection to an alpha connection of the port system, and a second interface for releasable attachment of a beta cover for closing the through opening. An edge of the sheath is connected with a first surface of a ring which encompasses a jacket surface of the flange part, the first surface and the jacket surface having different materials. An elastic bellows may be fastened to the flange part such that, in the relaxed state, it engages over the second interface and/or projects out of the through-opening on the side facing away from the sheath, and such that it can be compressed. At least one transponder for transmitting an identification may be arranged on the flange part.

Abstract: A method for setting up a subscriber identity module for agreeing one or several exchange keys, between a subscriber identity module and a provisioning server includes generating one or several exchange keys from keys of the provisioning server and of the subscriber identity module on a production server and are transmitted into the subscriber identity module and stored, so that the subscriber identity module is put particularly into a state as though it had generated the exchange keys itself. In a method for agreeing one or several exchange keys, between a subscriber identity module and a provisioning server, the subscriber identity module sends its public key to the provisioning server, which subsequently generates the exchange keys.

Abstract: A method for the transition is provided from a Boolean masking of a value to be kept secret to an additive masking of the value to be kept secret. The value to be kept secret is present in the Boolean masking as a representation masked with a first Boolean mask and a second Boolean mask. A first additive mask and a second additive mask are determined for the value to be kept secret. A first masking transition is executed in which the first Boolean mask is converted into the first additive mask. A second masking transition is executed in which the obfuscation value is converted into an additive correction value, and a third masking transition is executed in which the second Boolean mask is converted into the second additive mask.

Abstract: Test device and method for the semi-quantitative determination of chlorine dioxide in a liquid sample has at least two carrier matrices. The first carrier matrix comprises at least one amino acid, sodium thiosulphate, at least one redox indicator, buffer substances and at least one surfactant. The second carrier matrix comprises at least one inorganic iodide salt, starch and/or at least one starch derivative, sodium thiosulfate, buffer substances and at least one surfactant.

Abstract: A method for treating a plurality of indicator fields for determining the pH-value of an aqueous solution is provided. Each of the indicator fields contains at least one indicator dye, which is fixed in a non-bleeding manner, in particular on a layer including cellulose or regenerated cellulose, and changes its color within a pH-turning-range. The indicator fields having buffer capacities which differ from one another. All the indicator fields are impregnated from the outside with an impregnation which influences the buffer capacities of the indicator fields in such a way that the deviations are levelled.

Abstract: Test device and method for the semi-quantitative determination of chlorine dioxide in a liquid sample has at least two carrier matrices. The first carrier matrix comprises at least one amino acid, sodium thiosulphate, at least one redox indicator, buffer substances and at least one surfactant. The second carrier matrix comprises at least one inorganic iodide salt, starch and/or at least one starch derivative, sodium thiosulfate, buffer substances and at least one surfactant.

Abstract: A method for treating a plurality of indicator field for determining the pH-value of an aqueous solution is disclosed. The indicator fields each contain at least one indicator dye, which is fixed in a non-bleeding manner, in particular on a layer comprising cellulose or regenerated cellulose, and changes its color within a pH-turning-range. The indicator fields having buffer capacities which differ from one another. All the indicator fields are impregnated from the outside with an impregnation which influences the buffer capacities of the indicator fields in such a way that the deviations are leveled.

Abstract: The present disclosure relates to a test device for the pH-dependent detection of urine by the combined immobilization on the cellulose-containing support matrix of the pH indicator dye and the acid/base reacted with it. In addition, the present disclosure relates to a sanitary article comprising the test device according to the present disclosure, and a process for preparing the test device according to the present disclosure.

Abstract: A gas turbine and method are disclosed by which the gas turbine can be safely operated at nominal speed with reduced margin to a surge limit of a compressor. The gas turbine, via a directly driven generator which generates alternating current with an operating frequency and which is connected in a frequency-coupled manner to an electricity grid, can deliver electric power to this grid. In the case of an underfrequency event the compressor of the gas turbine is unloaded by controlled, fast closing of the variable compressor guide vanes (VGV) and as a result maintains a sufficient margin to the surge limit of the compressor.

Abstract: The disclosure relates to a method for determining a temperature in a pressurized flow path of a gas turbine comprising the steps of sending an acoustic signal from an acoustic signal emitting transducer across a section of the pressurized flow path, detecting the acoustic signal with a receiving transducer, measuring the time needed by the acoustic signal to travel from the acoustic signal emitting transducer to the receiving transducer, calculating the speed of sound, and calculating the temperature as a function of the speed of sound, the heat capacity ratio (?) and a specific gas constant (Rspec) of the gas flowing in the pressurized flow path. Besides the method, a gas turbine with a processor and transducers arranged to carry out such a method is disclosed.

Abstract: The subject innovation relates to a device for determining the concentration of a base and here especially hydrogen carbonate, whereby the device contains at least one pH indicator, at least one solid acid, and a mixture of at least one anionic surfactant and one nonionic surfactant. In addition, the subject innovation relates to a method for measuring the base concentration using the device according the subject innovation and a method for increasing the sensitivity of a testing device.

Abstract: The invention relates to a method for operating a gas turbine power plant, including a gas turbine, a HRSG following the gas turbine, an exhaust gas blower, and a carbon dioxide separation plant which separates the carbon dioxide contained in the exhaust gases and discharges it to a carbon dioxide outlet, the gas turbine, HRSG, exhaust gas blower, and carbon dioxide separation plant being connected by means of exhaust gas lines. According to the method a trip of the gas turbine power plant includes the steps of: stopping the fuel supply, switching off the exhaust gas blower, and controlling the opening angle of a VIGV at a position bigger or equal to a position required to keep a pressure in the exhaust gas lines between the HRSG and the exhaust gas blower above a minimum required pressure. The invention relates, further relates to a gas turbine power plant configured to carry out such a method.

Abstract: A power station (10) is provided having a turbine shafting (11) including a gas turbine (12) and a generator (18) which is driven directly by the gas turbine (12), produces alternating current at an operating frequency and whose output is connected to an electrical grid (21) with a predetermined grid frequency. An electronic decoupling apparatus or a variable electronic gearbox (27) is arranged between the generator (18) and the electrical grid (21), and decouples the operating frequency from the grid frequency.

Abstract: The present disclosure refers to a method for operating a gas turbine with a sequential combustor arrangement having: a first burner, a first combustion chamber, and a second combustor. A fuel gas is separated into a rich fuel having a concentration of higher hydrocarbons which is higher than the concentration of higher hydrocarbons of the fuel gas supplied to the plant, and a lean fuel having a concentration of higher hydrocarbons which is lower than the concentration of higher hydrocarbons of the fuel gas. A first fuel and a second fuel mixed from at least one of the rich fuel, the lean fuel, and the fuel gas are fed to different combustors of the gas turbine.

Abstract: Disclosed is a smokeless cigarette system comprising a reusable cigarette tube and a nicotine stick which can be discarded after use. The nicotine stick comprises a depot filter charged with a nanobead solution and nicotine and flavor substances attached thereto or incorporated therein, and a mouthpiece filter, which are joined together and produced at the factory stage. The disclosed smokeless cigarette is particularly suited for use in non-smoking areas to prevent stress caused by nicotine withdrawal and as a cigarette substitute, but can also be used in different types of cigarettes with varied dosage strengths to ensure gentle nicotine withdrawal and smoke disintoxication. Neither the environment nor other persons are harmed of put at risk by this system by either passive smoking or the generation of odour. The system can be handled in a simple and unproblematic manner since no heat source or heating systems are required.

Abstract: An exemplary system method for the operation of a CCPP with flue gas recirculation to reduce NOx emissions and/or to increase the CO2 concentration in the flue gases to facilitate CO2 capture from the flue gases is disclosed. The flue gas recirculation rate (rFRG) is controlled as function of the combustion pressure and/or the hot gas temperature. Operability is enhanced by admixing of oxygen or oxygen enriched air to the gas turbine inlet gases or to the combustion.

Abstract: A method is provided for CO2 separation from a combined-cycle power plant with exhaust-gas recirculation and CO2 separation. The hot-gas flow is split into a recirculation flow and an exhaust-gas flow before the final turbine stage in the turbine. A first partial flow remains in the turbine and carries out expansion work in the conventional form, before its waste heat is dissipated, for example in a waste-heat boiler, and the gases are recirculated into the inlet flow of the gas turbine. A second partial flow is diverted before the final turbine stage, and emits its waste heat in an HRSG/heat exchanger, before CO2 is separated from the exhaust-gas flow at an increased pressure level.

Abstract: A power plant includes a first gas turbine engine, a second gas turbine engine, a flue gas duct, a CO2 capture system for treating flue gases from the second gas turbine engine and an exhaust system. It additionally includes at least one among a direct connection between the first gas turbine engine and the exhaust system, and a damper for on-line regulating the flue gases flow through it, a direct connection between the first gas turbine engine and the CO2 capture system, and a damper for regulating the flue gases flow through it, a supply of fresh oxygen containing fluid for the second gas turbine engine.

Abstract: An exemplary method is disclosed for operating a gas turbine power plant with exhaust gas recirculation, in which the exhaust gas recirculation is, for example, disengaged during starting and shutting down of the gas turbine, and in which the engaging or disengaging of the exhaust gas recirculation can be carried out in dependence upon an operating state of the gas turbine. An exemplary gas turbine power plant with exhaust gas recirculation is also disclosed which can include a control element, the closing speed of which is such that the control element can be closed within a time which is less than a time for exhaust gases to flow from the turbine through an HRSG.

Abstract: A device is provided for determining total chlorine in liquids, the device including an indicator carrier that is impregnated with a color indicator that contains Michler's thioketone, the indicator carrier additionally containing as a color indicator at least one azine as well as an iodide, in particular potassium iodide and/or sodium iodide.