Search Results - "KÜPPERS, F"

Oxygen permeation through tape-cast asymmetric all-La0.6Sr0.4Co0.2Fe0.8O3−δ membranes by Serra, José M., Garcia-Fayos, Julio, Baumann, S., Schulze-Küppers, F., Meulenberg, W.A.

“…One of the most promising materials for oxygen separation amongst ceramic oxygen transport membranes (OTMs) is La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) due to its…”
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High Performance ZnSe-Based Metal–Semiconductor–Metal Ultraviolet Photodetectors with Different Schottky Contacts by Sirkeli, V. P., Yilmazoglu, O., Hajo, A. S., Nedeoglo, N. D., Nedeoglo, D. D., Küppers, F., Hartnagel, H. L.

“…We report on fabrication and characterization of high-performance ZnSe-based metal–semiconductor–metal (MSM) ultraviolet (UV) photodetectors with different…”
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Comparison of freeze-dried and tape-cast support microstructure on high-flux oxygen transport membrane performance by Schulze-Küppers, F., Unije, U.V., Blank, H., Balaguer, M., Baumann, S., Mücke, R., Meulenberg, W.A.

“…The overall permeation rate through asymmetric oxygen transport membranes is significantly governed by the porous support. Therefore, the microstructuring of…”
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Manufacturing and performance of advanced supported Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) oxygen transport membranes by Schulze-Küppers, F., Baumann, S., Meulenberg, W.A., Stöver, D., Buchkremer, H.-P.

“…Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) is widely known as a promising candidate material for oxygen transport membranes (OTMs). In order to maximize the oxygen…”
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Design and fabrication of large-sized planar oxygen transport membrane components for direct integration in oxy-combustion processes by Schulze-Küppers, F., Drago, F., Ferravante, L., Herzog, S., Baumann, S., Pinacci, P., Meulenberg, W.A.

“…•First realization of planar, asymmetric membrane components for 4-end operation.•Design of the membrane component supported by FEM and CFD…”
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Surface micromachined tunable 1.55 μm-VCSEL with 102 nm continuous single-mode tuning by Gierl, C, Gruendl, T, Debernardi, P, Zogal, K, Grasse, C, Davani, H A, Böhm, G, Jatta, S, Küppers, F, Meissner, P, Amann, M-C

“…For the first time a vertical-cavity surface-emitting laser (VCSEL) with a single-mode wavelength-tuning over 102 nm in the range of 1550 nm is demonstrated…”
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Mechanical properties of pure and doped cerium oxide by Lipińska-Chwałek, M., Schulze-Küppers, F., Malzbender, J.

“…Advanced concepts for oxygen transport membranes focus on thin layers supported by a porous substrate. To warrant long term reliable operation of such systems,…”
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Strength and elastic modulus of lanthanum strontium cobalt ferrite membrane materials by Lipińska-Chwałek, M., Schulze-Küppers, F., Malzbender, J.

“…Mixed ionic electronic ceramic transport membranes have a large potential for industrial oxygen supply and carbon emission reduced fossil power plant concepts…”
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Temperature characteristics of surface micromachined MEMS-VCSEL with large tuning range by Gierl, C, Gründl, T, Paul, S, Zogal, K, Haidar, M T, Meissner, P, Amann, M-C, Küppers, F

“…Several Applications for tunable laser diodes have strict constraints in terms of overall power consumption. Furthermore, the implementation in harsh…”
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Ultrahigh oxygen permeation flux through supported Ba₀.₅Sr₀.₅Co₀.₈Fe₀.₂O₃₋δ membranes by Baumann, S, Serra, J.M, Lobera, M.P, Escolástico, S, Schulze-Küppers, F, Meulenberg, W.A

“…Oxygen transport membranes made of Ba₀.₅Sr₀.₅Co₀.₈Fe₀.₂O₃₋δ (BSCF) were manufactured by tape casting and co-firing. The disk-shaped membranes consisted of a…”
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Investigation of multiwavelength clock recovery based on heterodyne beats of sideband-filtered signal by von Lerber, T., Tuominen, J., Ludvigsen, H., Honkanen, S., Küppers, F.

“…We investigate a new parallel all-optical clock recovery scheme based on heterodyne beats of an optical sideband-filtered signal. The oscillating clock signal…”
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Numerical analysis and system optimization for 100 Gbit/s carrier Ethernet serial modulation formats by Chaouch, H., Gonschior, C., Klein, K.-F., Vorbeck, S., Schneiders, M., Weiershausen, W., Küppers, F.

“…The performance of various modulation schemes for 100 Gbit/s single-channel serial transmission is investigated by means of numerical simulations. Different…”
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40 Gb/s and 4 × 40 Gb/s TDM/WDM standard fiber transmission by WEINERT, C. M, LUDWIG, R, PIEPER, W, WEBER, H. G, BREUER, D, PETERMANN, K, KÜPPERS, F

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Ultrahigh oxygen permeation flux through supported Ba0.5Sr0.5Co0.8Fe0.2O3− membranes by Baumann, S., Serra, J.M., Lobera, M.P., Escolástico, S., Schulze-Küppers, F., Meulenberg, W.A.

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Influence of sintering conditions on microstructure and oxygen permeation of Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) oxygen transport membranes by Baumann, S., Schulze-Küppers, F., Roitsch, S., Betz, M., Zwick, M., Pfaff, E.M., Meulenberg, W.A., Mayer, J., Stöver, D.

“…Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) exhibits high oxygen permeability, which is why it has potential for gas separation (oxygen transport membrane) in…”
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Artificial neural network analysis (ANNA) of prostatic transrectal ultrasound by Loch, Tillmann, Leuschner, Ivo, Genberg, Carl, Weichert-Jacobsen, Klaus, Küppers, Frank, Yfantis, Evangelos, Evans, Michael, Tsarev, Valeri, Stöckle, Michael

“…BACKGROUND Our purpose was to determine the diagnostic potential of a new, computerized method of interpreting transrectal ultrasound (TRUS) information by…”
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Influence of support layer resistance on oxygen fluxes through asymmetric membranes based on perovskite-type oxides SrTi1-Fe O3 by Schulze-Küppers, F., Baumann, S., Meulenberg, W.A., Bouwmeester, H.J.M.

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RZ versus NRZ modulation format for dispersion compensated SMF-based 10-Gb/s transmission with more than 100-km amplifier spacing by Caspar, C., Foisel, H.-M., Gladisch, A., Hanik, N., Kuppers, F., Ludwig, R., Mattheus, A., Pieper, W., Strebel, B., Weber, H.G.

“…We compared numerically and experimentally the transmission behavior of return-to-zero (RZ) and nonreturn-to-zero (NRZ) modulated signals, 10 Gb/s were…”
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Optical clock recovery methods: Review ( Invited) by von Lerber, T., Honkanen, S., Tervonen, A., Ludvigsen, H., Küppers, F.

“…Clock recovery is a fundamental operation in digital telecommunications systems, where the receiver synchronizes itself to the transmitter timing. In optical…”
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Influence of support layer resistance on oxygen fluxes through asymmetric membranes based on perovskite-type oxides SrTi1-xFexO3-δ by Schulze-Küppers, F., Baumann, S., Meulenberg, W.A., Bouwmeester, H.J.M.

“…Asymmetric membranes of mixed ionic-electronic conducting perovskite-type oxides SrTi1-xFexO3-δ (STF, x = 0.3, 0.5 and 0.7) were prepared by inverse sequential…”
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