Abstract: A fuel cell system having a two-phase cooling system includes at least one fuel cell with a coolant inlet and a coolant outlet, a condenser to condense and to supercool the coolant, a pump to pump the supercooled coolant, and at least one ejector fluidically connected to the coolant outlet, the pump, the condenser and the fuel cell to supply the coolant to the fuel cell.

Abstract: A method and system for reducing temperature peaks during start-up of a fuel cell with a two-phase cooling system, the method including setting a saturation pressure of a coolant, via a pressure controller, to a first saturation pressure such that a maximum temperature of a coolant induced by boiling delay is below a maximum operating temperature of the fuel cell, starting the fuel cell, in response to the maximum temperature of the coolant induced by boiling delay being exceeded, setting the saturation pressure of the coolant, via the pressure controller, to a second saturation pressure, wherein the second saturation pressure is higher than the first saturation pressure.

Abstract: A fuel cell system having a two-phase cooling system includes at least one fuel cell having a coolant inlet and a coolant outlet, a condenser in fluid connection with the accumulator to condense and supercool the coolant, a bypass line including a pump, the bypass line being in fluid connection with the coolant outlet and the coolant inlet and being adapted to return the coolant to the fuel cell by a pump.

Abstract: A fuel cell system having a two-phase cooling system includes at least one fuel cell having a coolant inlet and a coolant outlet, an accumulator in fluid connection with the fuel cell to contain coolant which flows out of the fuel cell in a liquid phase in a first portion and in a gas phase in a second portion, a condenser in fluid connection with the accumulator to condense and supercool the coolant, a thermally conductive element between the coolant inlet and the coolant outlet to transfer heat from the coolant outlet to the coolant inlet.

Abstract: A bipolar plate for a fuel cell having a two-phase cooling system and a fuel cell system includes a coolant inlet, a coolant outlet, and coolant channels with the coolant inlet being in fluid connection with the coolant outlet via the coolant channels. At least one inner surface of coolant inlet, coolant outlet and at least one of the coolant channels has a surface treatment to influence a flow regime of a cooling fluid along at least one inner surface and/or a phase transition of the cooling fluid.

Abstract: A method and a system for starting a fuel cell at temperatures below 0° Celsius with a two-phase cooling system are indicated, whereby the two-phase cooling system has a pump to convey a coolant present in the two-phase cooling system, whereby the coolant is present at least partially in a gas phase in the two-phase cooling system, including steps of starting the fuel cell, and activating the pump after a defined period of time, whereby the coolant is present substantially in the gas phase within the fuel cell during the defined period of time.

Abstract: A method includes setting up a connection between a first application on a first device and a communication service on the first device, using an identification which is assigned to a second application, setting up a connection between the second application, which is executed on a second device, and the communication service, using the identification, setting up a communication channel between the first application and the second application via the communication service, and receiving, by the second application, a first message from the first application, wherein the first message designates a third application to be executed on the second device and/or a first service of the third application to be executed on the second device.

Abstract: A method for transmitting messages from a server to a client in an internet transmission system includes: (a) the client sends to the server a request for transmitting a picture file, (b) in response to the reception of the request the server generates a picture file with a first content, in case that no message is available for the client, and delays the transmission of the picture file to the client for a time interval, (c) in response to the reception of the picture file with the first content, the client again sends a request for sending (transmitting) a picture file, (d) the steps (a) to (c) are repeated till, upon the last request, a message is available at the server for transmission to the client, (e) the server transmits, in response to the last request of the client, the picture file with a second content, (f) in response to the reception of the picture file with the second content, the client then sends a request for transmitting the message, (g) in response to the reception of the request for tran

Abstract: Thermoplastic compositions include: (a) a thermoplastic polymer including a polycarbonate component; (b) a poly(carbonate-siloxane) copolymer; and (c) from 4 wt % to 25 wt % carbon black. The composition has a total siloxane content of from 2 wt % to 14 wt %. The thermoplastic compositions exhibit improved physical properties as compared to compositions that do not include the poly(carbonate-siloxane) copolymer, including volume resistivity, melt viscosity, impact strength, puncture impact energy and surface resistivity.

Abstract: Thermoplastic compositions include: (a) a thermoplastic polymer including a polycarbonate component; (b) a poly(carbonate-siloxane) copolymer; and (c) from 4 wt % to 25 wt % carbon black. The composition has a total siloxane content of from 2 wt % to 14 wt %. The thermoplastic compositions exhibit improved physical properties as compared to compositions that do not include the poly(carbonate-siloxane) copolymer, including volume resistivity, melt viscosity, impact strength, puncture impact energy and surface resistivity.

Abstract: The presently claimed invention relates to a method for concentrating a beta-glucan comprising at least the following steps: (a1) contacting an aqueous beta-glucan solution having a concentration [c1] with at least one precipitating agent p1 to obtain a precipitated beta-glucan in a solvent mixture comprising water and the at least one precipitating agent p1; (b1) separating the precipitated beta-glucan from the solvent mixture comprising water and the at least one precipitating agent p1 to obtain a precipitated beta-glucan having a concentration [c2]; and (c1) applying force to the precipitated beta-glucan of (b1) to obtain a precipitated beta-glucan having a concentration [c3].

Abstract: A composition is prepared by melt blending specific amounts of components including a poly(phenylene ether), a first hydrogenated block copolymer (HBC1) that includes a polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer having a polystyrene content of 50 to 75 weight percent, and a second hydrogenated block copolymer. The second hydrogenated block copolymer can selected from five different hydrogenated block copolymer types and their combinations. The composition exhibits high light transmittance, low haze, and high impact strength at low temperature, which make it useful for molding objects such as containers for storage in refrigerators and freezers.

Abstract: A composition is prepared by melt blending specific amounts of components including a poly(phenylene ether), a first hydrogenated block copolymer (HBC1) that includes a polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer having a polystyrene content of 50 to 75 weight percent, and a second hydrogenated block copolymer. The second hydrogenated block copolymer can selected from five different hydrogenated block copolymer types and their combinations. The composition exhibits high light transmittance, low haze, and high impact strength at low temperature, which make it useful for molding objects such as containers for storage in refrigerators and freezers.

Abstract: A composition includes 15 to 35 weight percent of a poly(phenylene ether) having an intrinsic viscosity of 0.29 to 0.43 deciliter per gram, and 65 to 85 weight percent of a rubber-modified polystyrene. The composition exhibits improved heat resistance relative to acrylonitrile-butadiene-styrene copolymer (ABS) while maintaining comparable levels of melt flow, impact resistance, and tensile strength. Articles such as electrical housings can be molded from the composition.

Abstract: A composition having a combination of high heat resistance, high impact strength, and high flame retardance includes specific amounts of poly(phenylene ether), hydrogenated block copolymer, and organophosphate flame retardant. The composition has minimal amounts or excludes certain styrenic polymers, polyolefins, and reinforcing fillers. Also disclosed are injection molded articles formed from the composition. The composition is particularly useful as a molding composition for photovoltaic junction boxes and connectors.

Abstract: Stored in a computer are scores related to answers given by human representatives of organizational units in response to defined questions. For the organizational units, total scores and weighted total scores are calculated. The weighted total scores are calculated by adding up weighted maximum scores assigned to the questions, the weighted maximum scores depending on the respective organizational unit and the respective question. Competence levels of the organizational units are calculated by scaling the total scores of the respective organizational unit to a scale of competence reaching from zero to a maximum competence. The maximum competence corresponds to the weighted total score calculated for the respective organizational unit. The computer generates a graphical representation of the competence levels for multiple organizational units of a particular organization.

Abstract: Generally disclosed are boron-based organic cations, a method for their manufacture, a method for their use in ionic liquids, and a method for their use as phase-transfer catalysts. More specifically, the boron-based organic cations have an charge of 1+, 2+, or 3+.

Abstract: Stored in a computer are scores related to answers given by human representatives of organizational units in response to defined questions. For the organizational units, total scores and weighted total scores are calculated. The weighted total scores are calculated by adding up weighted maximum scores assigned to the questions, the weighted maximum scores depending on the respective organizational unit and the respective question. Competence levels of the organizational units are calculated by scaling the total scores of the respective organizational unit to a scale of competence reaching from zero to a maximum competence. The maximum competence corresponds to the weighted total score calculated for the respective organizational unit. The computer generates a graphical representation of the competence levels for multiple organizational units of a particular organization.

Abstract: The present invention provides novel coordination complexes, methods for synthesizing and identifying coordination complexes using combinatorial techniques, and assaying for their activity. In certain embodiments, the subject coordination complexes contain platinum.