Search Results - subject:"diffuse"

Predicting monthly mean daily diffuse radiation for India

Karakoti, Indira; Das, Prasun Kumar; Singh, S.K. - In: Applied Energy 91 (2012) 1, pp. 412-425

An investigation on diffuse solar radiation for 23 stations of India is carried out exploiting the 15years (1986 …–2000) recorded data. Seven generalized empirical models are developed correlating the diffuse radiation with the sunshine duration … most suitable equation. The study finds that a correlation of diffuse transmittance with percent sunshine, temperature and …

Persistent link: https://www.econbiz.de/10010576244

The role of clouds in improving the regression model for hourly values of diffuse solar radiation

Furlan, Claudia; Oliveira, Amauri Pereira de; Soares, Jacyra - In: Applied Energy 92 (2012) C, pp. 240-254

The study introduces a new regression model developed to estimate the hourly values of diffuse solar radiation at the … surface. The model is based on the clearness index and diffuse fraction relationship, and includes the effects of cloud … capable of predicting hourly values of diffuse solar radiation better than the previously developed ones (R2=0.93 and RMSE=0 …

Persistent link: https://www.econbiz.de/10010576319

UVB irradiance and atmospheric optical depth at the Dead Sea basin, Israel: Measurements and modeling

Kudish, Avraham I.; Evseev, Efim G. - In: Renewable Energy 48 (2012) C, pp. 344-349

and diffuse as a function of both UVB optical depth (δ) and relative optical air mass (ma). The available measurements of … independent data set, whereas the diffuse UVB component was obtained as the difference between the above radiant components. The …

Persistent link: https://www.econbiz.de/10011046217

An example illustrating the incompleteness of the Navier–Stokes–Fourier equations for thermally compressible fluids

Brenner, Howard - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 4, pp. 966-978

This paper illustrates, by example, the incompleteness of the Navier–Stokes–Fourier (NSF) equations for the case of thermally compressible fluids, namely fluids possessing a nonzero coefficient of thermal expansion. The work is a follow-up to a recent publication that offered elementary...

Persistent link: https://www.econbiz.de/10010590236

Cost Effectiveness of Rituximab for Non-Hodgkin's Lymphoma: A Systematic Review

Auweiler, Philipp W.P.; Muller, Dirk Mller; Stock, Stephanie - In: PharmacoEconomics 30 (2012) 7, pp. 537-549

Background:Background: The monoclonal antibody rituximab has shown clinical effectiveness in combination with chemotherapy for the treatment of non-Hodgkin's lymphoma (NHL) in several randomized controlled studies. Rituximab maintenance therapy is associated with significant improvement in...

Persistent link: https://www.econbiz.de/10010551727

Diffuse Pollution and the Role of Agriculture

Pearce, David; Koundouri, Phoebe - Volkswirtschaftliche Fakultät, … - 2003

Agriculture contributes negative and positive externalities to society, that is, beneficial and detrimental changes in human wellbeing to third parties for which they are not generally compensated or charged. Beneficial externalities include the creation of amenity and landscape and negative...

Persistent link: https://www.econbiz.de/10011113810

Koppelung agrarökonomischer und hydrologischer Modelle

Gomann, Horst; Kreins, Peter; Kunkel, Ralf; Wendland, Frank - In: German Journal of Agricultural Economics 52 (2003) 4

diffuse agricultural nitrogen immission into waterbodies. A brief classification of applied indicators is given. A key element …

Persistent link: https://www.econbiz.de/10008800847

Estimating monthly average daily diffuse solar radiation with multiple predictors: A case study

Li, Huashan; Ma, Weibin; Wang, Xianlong; Lian, Yongwang - In: Renewable Energy 36 (2011) 7, pp. 1944-1948

Solar radiation measurements are not easily available, especially for the diffuse solar radiation. In this study, two … models for estimating the diffuse solar radiation are proposed based on multiple predictors including the clearness index …, and the other aims to estimate the diffuse solar radiation direct from other meteorological elements in the absence of the …

Persistent link: https://www.econbiz.de/10010805225

A simple evaluation of global and diffuse luminous efficacy for all sky conditions in tropical and humid climate

Fakra, A.H.; Boyer, H.; Miranville, F.; Bigot, D. - In: Renewable Energy 36 (2011) 1, pp. 298-306

This paper presents initial values of global and diffuse luminous efficacy at Saint-Pierre (Reunion Island). Firstly …

Persistent link: https://www.econbiz.de/10010805924

Estimation of exterior vertical daylight for the humid tropic of Kota Kinabalu city in East Malaysia

Djamila, Harimi; Ming, Chu Chi; Kumaresan, Sivakumar - In: Renewable Energy 36 (2011) 1, pp. 9-15

In tropical regions natural daylight has been a fundamental factor in building design. It is the most efficient way of lighting a building in the daytime and has a great potential for energy conservation in buildings. In Malaysia there are a limited available data of measured illuminance which...

Persistent link: https://www.econbiz.de/10010806252