Search Results - subject:"diffuse"

Experimental and theoretical investigation of diffuse solar radiation: Data and models quality tested for Egyptian sites

Elminir, Hamdy K. - In: Energy 32 (2007) 1, pp. 73-82

, eight widely used standard models predicting diffuse irradiation values are tested. A statistical analysis of hourly, daily … and monthly correlations is carried out, using a 5yr data archive (1999–2003) of hourly global and diffuse solar … deviation, standard error and F-test, were also introduced. The results indicate that the correlations relating the diffuse …

Persistent link: https://www.econbiz.de/10010809134

Assessing the incentives needed to improve riparian management in grazing systems: Comparing experimental auctions and choice modelling approaches

Rolfe, John; Windle, Jill; Reeson, Andrew; Whitten, … - Australian Agricultural and Resource Economics Society … - 2006

quantities of sediment and nutrient export are of concern and come predominantly from diffuse sources in the grazing industry …

Persistent link: https://www.econbiz.de/10011069790

The Rational Relevance of the Diffuse Paradigms

Dinu, Marin - In: Theoretical and Applied Economics 1(496) (2006) 1(496), pp. 112-116

Processes like the globalization consistency and learning about society are screened by diffuse concepts such as those …

Persistent link: https://www.econbiz.de/10005087824

Evaluating tilted plane models for solar radiation using comprehensive testing procedures, at a southern hemisphere location

David, Mathieu; Lauret, Philippe; Boland, John - In: Renewable Energy 51 (2013) C, pp. 124-131

This work aims at assessing the performances of four models for their relative merits in estimating diffuse solar …

Persistent link: https://www.econbiz.de/10010804958

Introducing GRADRAD: The greater Durban radiometric network

Kunene, Khulisile R.; Brooks, Michael J.; Roberts, Lance W. - In: Renewable Energy 49 (2013) C, pp. 259-262

common software format to facilitate comparison of data. High quality global, direct and diffuse irradiance measurements will …

Persistent link: https://www.econbiz.de/10010805374

Vertically mounted bifacial photovoltaic modules: A global analysis

Guo, Siyu; Walsh, Timothy Michael; Peters, Marius - In: Energy 61 (2013) C, pp. 447-454

on three factors: (i) the latitude, (ii) the local diffuse fraction and (iii) the albedo. In a subsequent part of the … for every place in the world. The calculation is based on measured data of the diffuse light fraction and the results are …

Persistent link: https://www.econbiz.de/10010810625

Predicting daylight illuminance and solar irradiance on vertical surfaces based on classified standard skies

Li, Danny H.W.; Chau, Natalie T.C.; Wan, Kevin K.W. - In: Energy 53 (2013) C, pp. 252-258

Solar irradiance and outdoor illuminance, particularly on vertical surfaces are crucial to energy-efficient building designs and daylighting schemes. In Hong Kong, only hourly horizontal global solar radiation data have been systematically recorded for a long period but no measurements of...

Persistent link: https://www.econbiz.de/10010811733

Can Google data help predict French youth unemployment?

Fondeur, Y.; Karamé, F. - In: Economic Modelling 30 (2013) C, pp. 117-125

According to the growing “Google econometrics” literature, Google queries may help predict economic activity. The aim of our paper is to test whether these data can enhance predictions of youth unemployment in France.

Persistent link: https://www.econbiz.de/10011048762

Evaluation of different models to estimate the global solar radiation on inclined surfaces

Demain, Colienne; Journée, Michel; Bertrand, Cédric - In: Renewable Energy 50 (2013) C, pp. 710-721

Global and diffuse solar radiation intensities are, in general, measured on horizontal surfaces, whereas stationary …. This study evaluates the performance of 14 models transposing 10 min diffuse solar irradiation from horizontal to inclined …

Persistent link: https://www.econbiz.de/10011046330

CASIMOD’N: An agro-hydrological distributed model of catchment-scale nitrogen dynamics integrating farming system decisions

Moreau, Pierre; Ruiz, Laurent; Vertès, Françoise; … - In: Agricultural Systems 118 (2013) C, pp. 41-51

This work presents the new integrative model CASIMOD’N (Catchment and Agricultural Systems Integrated MODel for Nitrogen), which assesses effects of farming systems on nitrogen (N) dynamics at the catchment level. Its main innovation is the consideration of the level of the farming system...

Persistent link: https://www.econbiz.de/10010664079