Search Results - subject:"diffuse"

Steady-state heat conduction in quiescent fluids: Incompleteness of the Navier–Stokes–Fourier equations

Brenner, Howard - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 20, pp. 3216-3244

Linear irreversible thermodynamic principles are used to demonstrate, by counterexample, the existence of a fundamental incompleteness in the basic pre-constitutive mass, momentum, and energy equations governing fluid mechanics and transport phenomena in continua. The demonstration is effected...

Persistent link: https://www.econbiz.de/10011058417

Diffuse Surface Water Pollution: Driving Factors for Different Geoclimatic Regions

Panagopoulos, Yiannis; Makropoulos, Christos; Mimikou, Maria - In: Water Resources Management 25 (2011) 14, pp. 3635-3660

conditions of the two catchments. The results of the baseline indicated that diffuse agricultural sources were the largest …

Persistent link: https://www.econbiz.de/10010997939

Utilising a farmer typology to understand farmer behaviour towards water quality management: Nitrate Vulnerable Zones in Scotland

Barnes, A. P.; Willock, J.; Toma, L.; Hall, C. - In: Journal of Environmental Planning and Management 54 (2011) 4, pp. 477-494

Nitrate Vulnerable Zones (NVZ) are employed as compulsory instruments to meet standards on EU water quality. Farmers operating in NVZs face a number of restrictions on agricultural activity and a greater requirement for record keeping in relation to timing and quantities of nitrogen inputs used....

Persistent link: https://www.econbiz.de/10009222600

SLA (Second-law analysis) of transient radiative transfer processes

Makhanlall, D.; Liu, L.H.; Zhang, H.C. - In: Energy 35 (2010) 12, pp. 5151-5160

transient radiative transfer, exergy destruction of diffuse pulse radiation in a semitransparent slab is studied. The transient …

Persistent link: https://www.econbiz.de/10010808195

Comparing diffuse radiation models with one predictor for partitioning incident PAR radiation into its diffuse component in the eastern Mediterranean basin

Jacovides, C.P.; Boland, J.; Asimakopoulos, D.N.; … - In: Renewable Energy 35 (2010) 8, pp. 1820-1827

agricultural research. This study aiming to explore the applicability of several diffuse radiation empirical models, hourly … measurements of diffuse PAR and global PAR irradiation collected at Athens (37°N, 23°E, 250 m above MSL) from 1 January 2000 to 31 … December 2002, are employed. These data were used to establish an empirical model relating the spectral diffuse fraction, kdP …

Persistent link: https://www.econbiz.de/10011043794

Modelling of diffuse solar fraction with multiple predictors

Ridley, Barbara; Boland, John; Lauret, Philippe - In: Renewable Energy 35 (2010) 2, pp. 478-483

For some locations both global and diffuse solar radiation are measured. However, for many locations, only global … plane using trigonometry, we need to have diffuse radiation on the horizontal plane available. There are regression … relationships for estimating the diffuse on a tilted surface from diffuse on the horizontal. Models for estimating the diffuse on …

Persistent link: https://www.econbiz.de/10011044750

Influence of the phase diagram on the diffuse interface thickness and on the microstructure formation in a phase-field model for binary alloy

Selzer, Michael; Nestler, Britta; Danilov, Denis - In: Mathematics and Computers in Simulation (MATCOM) 80 (2010) 7, pp. 1428-1437

interfacial profile and the thickness of the diffuse boundary layer depend on the segregation of the alloy components. The …

Persistent link: https://www.econbiz.de/10010750004

A Review of Modelling Tools for Implementation of the EU Water Framework Directive in Handling Diffuse Water Pollution

Yang, Y.; Wang, L. - In: Water Resources Management 24 (2010) 9, pp. 1819-1843

A numerical catchment-scale model capable of simulating diffuse water pollution is necessary in sustainable … popular and free models for diffuse water modelling, with detailed sources and application potential. Based upon these reviews … HSPF is a suitable model in handling diffuse source water pollution, which can be introduced into the Programme of Measures …

Persistent link: https://www.econbiz.de/10010997413

Spatially Explicit Modeling of Land Use Specific Phosphorus Transport Pathways to Improve TMDL Load Estimates and Implementation Planning

Gaddis, Erica; Voinov, Alexey - In: Water Resources Management 24 (2010) 8, pp. 1621-1644

Diffuse pollution from urban stormwater and agricultural runoff are among the leading causes of water pollution in the …. Albans Bay, Vermont to model the relative load of phosphorus from all sources, including diffuse transport pathways, and … recommended best management practices (BMPs). The study offers an approach to attaining TMDL diffuse pollution targets in a cost …

Persistent link: https://www.econbiz.de/10010998131

A new methodology to optimise solar energy extraction under cloudy conditions

Armstrong, S.; Hurley, W.G. - In: Renewable Energy 35 (2010) 4, pp. 780-787

least amount of direct radiation with approximately half arriving as diffuse radiation, due to frequent, heavy cloud cover …

Persistent link: https://www.econbiz.de/10011045204