drought has different effects on human life and livelihood groups.this study the characteristics of drought and the zoning was done in the zanjan province is the kriging model than phenomenon to the effects of drought on the rural site selection consideration.drought has different effects on human life and livelihood groups.this study the characteristics of drought and the zoning was done in th...

Gravitational instability induces a simple correlation between the large and small scale fluctuations of the Ly-α flux spectrum. However, non-gravitational processes involved in structure formation and evolution will alter such a correlation. In this paper we explore how scatter in the temperature-density relation of the IGM reduces the gravitationally induced scale-scale correlation. By examin...

[1] A conundrum exists regarding whether the sea-surface temperatures decreased or increased over the southern Caribbean and the western Tropical Atlantic region during the Younger Dryas when the North Atlantic cooled substantially and the Atlantic thermohaline circulation was weakened significantly. Despite the proximity of core locations, some proxy reconstructions record a surface cooling, w...

The development of fire safety research in road tunnels during the past 20 years is reviewed, with particular reference to the activity of the Flame Research Group at Politecnico di Torino (Italy). Simulations of fire accidents in tunnels are described for both full-scale tests in real tunnels and for laboratory-scale tests. It is shown how simple semiempirical thermo-fluid dynamic models are a...

Direct comparison of the magnetic and transport critical current density (Jc) for the same pieces of copper-sheathed MgB2 wires shows a large discrepancy in magnitude and field dependence of the two. The value of magnetic Jc can differ from the value of transport Jc by a factor of 10 or more. This discrepancy does not occur merely because of the difference in the voltage at which the magnetic a...

This paper presents a statistical methodology for analyzing a complex phenomenon in which deterministic and scaling components are superimposed. 10 Our approach is based on the wavelet multiresolution analysis combined with the scaling analysis of the entropy of a time series. The wavelet multiresolution analysis decomposes the signal in a scale-by-scale manner. The scale-by-scale decomposition...

19 The hydrological and geomorphic effects of land use/land cover changes, 20 particularly those associated with vegetation regrowth after farmland abandonment were 21 investigated in the Central Spanish Pyrenees. The main focus was to assess the 22 interactions among slope, catchment, basin, and fluvial channel processes over a range 23 of spatial scales. In recent centuries most Mediterranean...

We present a physics-based statistical theory of a force-free magnetic field in the corona above a turbulent accretion disk. The field is represented by a statistical ensemble of loops tied to the disk. Each loop evolves under several physical processes: Keplerian shear, turbulent random walk of the disk footpoints, and reconnection with other loops. To build a statistical description, we intro...