Search Results - subject:"diffuse"

A study on the intercepted insolation as a function of slope and azimuth of the surface

Gopinathan, K.K.; Maliehe, N.B.; Mpholo, M.I. - In: Energy 32 (2007) 3, pp. 213-220

angels are estimated for three locations in the Southern African region from reported global and diffuse radiation on a …

Persistent link: https://www.econbiz.de/10010811141

Cross-Validated Bagged Prediction of Survival

Sinisi, Sandra; Neugebauer, Romain; Laan, Mark van der - In: Statistical Applications in Genetics and Molecular Biology 5 (2007) 1, pp. 12-12

diffuse large B-cell lymphoma based on gene expression variables. …

Persistent link: https://www.econbiz.de/10005246458

Wavelets for diffusion tensor imaging

Heim, Susanne (contributor) - 2007 - Rev.

In this paper, wavelet basis functions are investigated for their suitability for processing and analysing diffusion tensor imaging (DTI) data. First, wavelet theory is introduced and explained by means of 1d and 2d examples (Section 1.1 - 1.3). General thresholding techniques, which serve as...

Persistent link: https://www.econbiz.de/10003422201

Discounted optimal stopping for maxima in diffusion models with finite horizon

Gapeev, Pavel V. - 2006

SFB 649 Discussion Paper 2006-057 Discounted Optimal Stopping for Maxima in Diffusion Models with Finite Horizon Pavel V. Gapeev* * Weierstrass Institute for Applied Analysis and Stochastics, Berlin, Germany and Russian Academy of Sciences, Institute of...

Persistent link: https://www.econbiz.de/10004875341

Discounted optimal stopping for maxima of some jump-diffusion processes

Gapeev, Pavel V. - 2006

SFB 649 Discussion Paper 2006-059 Discounted Optimal Stopping for Maxima of some Jump-Diffusion Processes Pavel V. Gapeev* * Weierstrass Institute for Applied Analysis and Stochastics, Berlin, Germany and Russian Academy of Sciences, Institute of Control...

Persistent link: https://www.econbiz.de/10004875342

Comparative study of various correlations in estimating hourly diffuse fraction of global solar radiation

Jacovides, C.P.; Tymvios, F.S.; Assimakopoulos, V.D.; … - In: Renewable Energy 31 (2006) 15, pp. 2492-2504

solar radiation. The diffuse-to-global solar radiation correlation, originally developed by Liu and Jordan, has been …, empirical correlations of this type were developed to establish a relationship between the hourly diffuse fraction (kd) and the … hourly clearness index (kt) using hourly global and diffuse irradiation measurements on a horizontal surface performed at …

Persistent link: https://www.econbiz.de/10010806160

A phase-field method for interface-tracking simulation of two-phase flows

Takada, Naoki; Misawa, Masaki; Tomiyama, Akio - In: Mathematics and Computers in Simulation (MATCOM) 72 (2006) 2, pp. 220-226

For interface-tracking simulation of two-phase flows with a high density ratio, we propose a computational method, NS–PFM, combining Navier–Stokes (NS) equations with phase-field model (PFM) based on the free energy theory. Through the numerical simulations, it was confirmed that (1) the...

Persistent link: https://www.econbiz.de/10010750055

The effect of diffuse/indirect light on the energy gain of solar thermal collectors

Pucar, Mila; Despic, Aleksandar - In: Renewable Energy 30 (2005) 11, pp. 1749-1758

An extension of previous studies, which did not treat quantitatively possible effect of diffuse skylight on the …

Persistent link: https://www.econbiz.de/10010805548

Product Policy as an Instrument for Water Quality Management

Ast, J. Van; Blansch, K.; Boons, F.; Slingerland, S. - In: Water Resources Management 19 (2005) 2, pp. 187-198

A main reason for the persistence of current water pollution lies in the diffuse character of many of its sources. For … a large part such diffuse pollution is related to the production, use and waste of various kinds of products. For the …

Persistent link: https://www.econbiz.de/10010794607

Random noise in diffusion tensor imaging, its destructive impact and some corrections

Hahn, Klaus R.; Prigarin, Sergej; Heim, Susanne; Hasan, … - 2005

The empirical origin of random noise is described, its influence on DTI variables is illustrated by a review of numerical and in vivo studies supplemented by new simulations investigating high noise levels. A stochastic model of noise propagation is presented to structure noise impact in DTI....

Persistent link: https://www.econbiz.de/10003309982