Europhysics Letters PREPRINT Nonlinear square patterns in Rayleigh-Benard convection (2007)
PACS. 47.54.+r { Pattern selection; pattern formation. Abstract. { We numerically investigate nonlinear asymmetric square patterns in a horizontal convection layer with up-down re ection symmetry. As...
Generation of new frequencies by pulse splitting (2007)
Demircan, A., Kroh, M., Hüttl, B., Bandelow, U.
We present a pulse splitting mechanism by third-order dispersion in the normal dispersion regime, which leads to the excitation of new frequency components on the red side of the pulse spectrum. We...
U. Böttger, A. Demircan, V. Vanderbilt
Methane is an important greenhouse gas. The areal extent of Boreal wetlands, source areas for methane, is poorly known. At times estimates have differed by as much as seven fold, which contributes...
Compression limit by third-order dispersion in the normal dispersion regime (2006)
Demircan, A., Kroh, M., Bandelow, U., Hüttl, B.
Broadband continua at gigahertz rates generated in high-nonlinear dispersion-flattened fibers in the normal dispersion regime near the zero-dispersion wavelength can be used for a subsequent...
Field Measurements of Bi-Directional Reflectance (2004)
Bruegge, C.J., Schaepman, M.E., Strub, G., Beisl, U., Itten, K.I., Demircan, A., ...
Reflection Properties of Vegetation and Soil - with a BRDF Data Base (2004)
Abdou, W.A., Barker-Schaaf, C., Beisl, U., Boucher, Y., Briottet, X., Bruegge, C.J., ...
Exploiting multi-angular observations for vegetation monitoring (2001)
Geiger, B., Demircan, A., Schönermark, M. Von
Remote sensing instruments of the present and future generations include a variety of multi-angular off-nadir measuring facilities. In order to fully exploit their possibilities a thorough...
Use of a Wide Angle CCD Line Camera for BRDF Measurements (2000)
Demircan, A., Schuster, R., Radke, M., Schönermark, M. Von, Röser, H. P.
In order to determine the Bi-directional Reflectance Distribution Function (BRDF)of natural surfaces a CCD line camera is used. This allows measurements under natural conditions with a high azimuth...
Bi-directional reflectance measurements with the CCD line camera WAAC (2000)
Demircan, A., Geiger, B., Radke, M., Schönermark, M. Von
In order to determine the Bi-directional Reflectance Distribution Function (BRDF) of natural surfaces under natural conditions with high angular resolution a CCD line camera is used. We demonstrate...
Schönermark, M. Von, Demircan, A., Geiger, B., Oehmichen, G., Tornow, C., Weimann, A., ...
The interpretation of the reflected radiation measured by wide angle instruments or in off-nadir directions requires the knowledge of the bi-directional reflectance distribution function (BRDF). By...
Heteroclinic behavior in rotating Rayleigh-Bénard convection (1999)
A. Demircan, S. Scheel, N. Seehafer
We investigate numerically the appearance of heteroclinic behavior in a three-dimensional, buoyancy-driven fluid layer with stress-free top and bottom boundaries, a square horizontal periodicity with...
The prognostic relevance of angiogenesis and mast cells in squamous cell carcinoma of the oesophagus
Elpek, G, Gelen, T, Aksoy, N, Erdogan, A, Dertsiz, L, Demircan, A, ...
Aims—Angiogenesis, an important prognostic factor in several tumours, is a complex event mediated by angiogenic factors released from cancer cells and host immune cells. Among the host immune...
Localised fibrous mesothelioma arising in an intralobar pulmonary sequestration.
Paksoy, N, Demircan, A, Altiner, M, Artvinli, M
A localised fibrous mesothelioma arising from an intralobar lung sequestration occurred in a 64 year old Turkish woman. This appears to be the first report of a mesothelioma occurring within a...
Differential expression of VASP in normal lung tissue and lung adenocarcinomas
Dertsiz, L, Ozbilim, G, Kayisli, Y, Gokhan, G, Demircan, A, Kayisli, U
Background: Vasodilator stimulated phosphoprotein (VASP) is associated with focal adhesions and is thought to have an important role in actin filament assembly and cell motility. We hypothesise that...