Search Results - "Hakenjos, A."

Start Up and Freezing Processes in PEM Fuel Cells by Oszcipok, M., Hakenjos, A., Riemann, D., Hebling, C.

“…The isothermal operation of single PEM fuel cells below 0 °C is investigated by potentiostatic experiments and analyzed by physical modeling. Current decay is…”
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A PEM fuel cell for combined measurement of current and temperature distribution, and flow field flooding by Hakenjos, Alex, Muenter, Harald, Wittstadt, Ursula, Hebling, Christopher

“…A fuel cell has been designed that combines three methods of spatially resolved measurements. The experimental setup allows to perform a simultaneous…”
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Spatially resolved measurement of PEM fuel cells by Hakenjos, Alex, Hebling, Christopher

“…A measurement set-up is presented containing a multichannel frequency response analyser system together with a multichannel potentiostat that allows…”
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AC impedance modelling study on porous electrodes of proton exchange membrane fuel cells using an agglomerate model by Gerteisen, Dietmar, Hakenjos, Alex, Schumacher, Jürgen O.

“…A one-dimensional model of the PEM fuel cell cathode is developed to analyse ac impedance spectra and polarisation curves. The porous gas diffusion electrode…”
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Simultaneous electrochemical impedance spectroscopy of single cells in a PEM fuel cell stack by Hakenjos, Alex, Zobel, Marco, Clausnitzer, Jan, Hebling, Christopher

“…A measurement set-up is presented containing a multichannel frequency response analyser system that allows the measurements of impedance spectra of single…”
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Amplitude calibration of a digital radio antenna array for measuring cosmic ray air showers by Nehls, S., Hakenjos, A., Arts, M.J., Blümer, J., Bozdog, H., van Cappellen, W.A., Falcke, H., Haungs, A., Horneffer, A., Huege, T., Isar, P.G., Krömer, O.

“…Radio pulses are emitted during the development of air showers, where air showers are generated by ultra-high energy cosmic rays entering the Earth's…”
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Characterising PEM Fuel Cell Performance Using a Current Distribution Measurement in Comparison with a CFD Model by Hakenjos, A., Tüber, K., Schumacher, J.O., Hebling, C.

“…The characterisation of a proton exchange membrane (PEM) fuel cell with a straight channel flow field design is performed. Spatially resolved current…”
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Start Up and Freezing Processes in PEM Fuel Cells by Oszcipok, M., Hakenjos, A., Riemann, D., Hebling, C.

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Development of FLATCON® modules using secondary optics by Jaus, J., Peharz, G., Gombert, A., Rodriguez, J., Dimroth, F., Eltermann, F., Wolf, O., Passig, M., Siefer, G., Hakenjos, A., Riesen, S.V., Bett, A.W.

“…In this paper we report on research activities at the Fraunhofer Institute for Solar Energy Systems (ISE) and Concentrix Solar in the area of secondary optics…”
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Amplitude calibration of a digital radio antenna array for measuring cosmic ray air showers by Nehls, S, Hakenjos, A, Arts, M. J, Bluemer, J, Bozdog, H, van Cappellen, W. A, Falcke, H, Haungs, A, Horneffer, A, Huege, T, Isar, P. G, Kroemer, O

“…Nucl.Instrum.Meth.A589:350-361,2008 Radio pulses are emitted during the development of air showers, where air showers are generated by ultra-high energy cosmic…”
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Cosmic Ray Air Shower Detection with LOPES by Haungs, A., Apel, W.D., Arteaga, J.C., Asch, T., Badea, A.F., Bähren, L., Bekk, K., Bertaina, M., Biermann, P.L., Blümer, J., Bozdog, H., Brancus, I.M., Brüggemann, M., Buchholz, P., Buitink, S., Butcher, H., Chiavassa, A., Cossavella, F., Daumiller, K., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Gemmeke, H., Ghia, P.L., Glasstetter, R., Grupen, C., Hakenjos, A., Heck, D., Hörandel, J.R., Horneffer, A., Huege, T., Isar, P.G., Kampert, K.-H., Kolotaev, Y., Krömer, O., Kuijpers, J., Lafebre, S., Luczak, P., Mathes, H.J., Mayer, H.J., Meurer, C., Milke, J., Mitrica, B., Morello, C., Navarra, G., Nehls, S., Nigl, A., Oehlschläger, J., Ostapchenko, S., Over, S., Petcu, M., Petrovic, J., Pierog, T., Plewnia, S., Rautenberg, J., Rebel, H., Roth, M., Schieler, H., Sima, O., Singh, K., Stümpert, M., Toma, G., Trinchero, G., Ulrich, H., van Buren, J., Walkowiak, W., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J.A., Zimmermann, D.

“…LOPES is set up at the location of the KASCADE-Grande extensive air shower experiment in Karlsruhe, Germany and aims to investigate radio pulses from extensive…”
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Radio detection of cosmic ray air showers with LOPES by Huege, T., Apel, W.D., Asch, T., Badea, A.F., Bähren, L., Bekk, K., Bercuci, A., Bertaina, M., Biermann, P.L., Blümer, J., Bozdog, H., Brancus, I.M., Buitink, S., Brüggemann, M., Buchholz, P., Butcher, H., Chiavassa, A., Cossavella, F., Daumiller, K., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Gemmeke, H., Ghia, P.L., Glasstetter, R., Grupen, C., Hakenjos, A., Haungs, A., Heck, D., Hörandel, J.R., Horneffer, A., Isar, P.G., Kampert, K.H., Kolotaev, Y., Krömer, O., Kuijpers, J., Lafebre, S., Mathes, H.J., Mayer, H.J., Meurer, C., Milke, J., Mitrica, B., Morello, C., Navarra, G., Nehls, S., Nigl, A., Obenland, R., Oehlschläger, J., Ostapchenko, S., Over, S., Petcu, M., Petrovic, J., Pierog, T., Plewnia, S., Rebel, H., Risse, A., Roth, M., Schieler, H., Sima, O., Singh, K., Stümpert, M., Toma, G., Trinchero, G.C., Ulrich, H., van Buren, J., Walkowiak, W., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J.A., Zimmermann, D.

“…In the last few years, radio detection of cosmic ray air showers has experienced a true renaissance, becoming manifest in a number of new experiments and…”
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