â â â  reports indicate that the mahabad dam has been silting up more than it was expected. this research has been tried to study the causes and the agents of these changes. a duration of two years periods (that is from october 1986 to october 1987 and october 1991 to october 1992) was taken up to compare and then to determine the role of the sedimentation on these changes. results show that th...

Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark Dept. of Biology, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark Biodiversity & Conservation, Department of Bioscience, Aarhus University, Grenåvej 14, DK-8410 Rønde, Denmark Centre for GeoGenetics, Natu...

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The possibility that the Avalon Platform, where the Avalonian lithotectonic belt is best developed, was involved in late Paleozoic displacement was tested by paleomagnetic study of red sandstones of the Upper Devonian Terrenceville Formation of eastern Newfoundland. Two magnetization directions were identified by thermal demagnetization analysis of 60 oriented samples from 10 sites: a high bloc...

The dipole-dipole polarizability, R, and the second hyperpolarizability, γ, as well as the corresponding linear and third-order susceptibilities, ø(1) and ø(3), have been calculated for C60 fullerene clusters by a point-dipole interaction (PDI) model. The size dependences of a linear chain, a monolayer film, and a face-centered cubic crystal cluster have been investigated. It is found that the ...

Regional slope values for earth and Venus are calculated for each 3 ø x 3 ø region of topography, and the global characteristics of these magnitudes are examined and compared. The effects on terrestrial regional slope due to ocean loading are treated by approximating the component of seafloor depth due to the weight of the overlying water column and removing this component from the ocean topogr...

The overall aim of the EU funded project ELIMA is to enable eco-efficient management and acquisition of product life cycle data by closing the information loop in different phases of product life cycle including design, manufacture, distribution, use, service-support, maintenance, and end-of-life product recovery. Information systems that can integrate information about products from all stages...