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Persistent link: https://www.econbiz.de/10000623411
Ellis ist Professor für Geologie und Umweltsysteme an der University of Maryland und Mitglied einer Kommission, die die Einführung des Begriffs Anthropozän als geologisches Erdzeitalter untersucht hat. Der Begriff geht u.a. zurück auf den Nobelpreisträger P.J. Crutzen: "Das Anthropozän"....
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Persistent link: https://www.econbiz.de/10001549759
Numerical and analytical models of sand and dust particle accumulation on photovoltaic modules in dry regions are … presented and supported by a laboratory investigation of sand particle accumulation on a glass surface. Both models and the …
Persistent link: https://www.econbiz.de/10010805216
compressible fluid. The proposed analogy between sand body and van der Waals fluid, and appropriate form of van der Waals state … expression for pressure in sand in isothermal conditions is also proposed. …
Persistent link: https://www.econbiz.de/10011062645
This paper presents the results of an extensive study of two thermal energy storage (TES) systems. The goal of the research is to make solar energy cost-competitive with other forms of electricity. A small-scale TES system was first built. The inner to outer layers were made of firebrick (FB),...
Persistent link: https://www.econbiz.de/10011096207
poorly- to well-sorted silty sand to very coarse sand. When only observation errors are present, spatial statistics for both … parameters are best estimated in materials with high hydraulic conductivity, like very coarse sand. When simple contact errors …
Persistent link: https://www.econbiz.de/10009435755
, net thickness of productive sand, porosity, permeability, effective compressibility. It is these parameters which …
Persistent link: https://www.econbiz.de/10009436713