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Soil Organic Carbon (SOC) is one of the key indicators of land degradation. SOC positively affects soil functions with regard to habitats, biological diversity and soil fertility; therefore, a reduction in the SOC stock of soil results in degradation, and it may also have potential negative effects… |
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We propose a numerical method to solve the Wigner equation in quantum systems of spinless, non-relativistic particles. The method uses a spectral decomposition into L-2(R-d) basis functions in momentum-space to obtain a system of first-order advection-reaction equations. The resulting equations are… |
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A shear-improved Smagorinsky model is introduced based on recent results concerning shear effects in wall-bounded turbulence by Toschi et al. (2000). The Smagorinsky eddy-viscosity is modified subtracting the magnitude of the mean shear from the magnitude of the instantaneous resolved strain-rate… |
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Spectral emissivity is a key property of the Earth surface of which only very few measurements exist so far in the far-infrared (FIR) spectral region, even though recent work has shown its FIR contribution is important for accurate modelling of global climate. The European Space Agency's 9th Earth… |
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In the present paper, the analysis of the turning capability of the naval supply vessel presented in Part I
(Broglia et al., 2015) is continued with different stern appendages, namely twin rudder and centreline skeg.
The main purpose of the analysis is to assess the capability of an in-house CFD… |
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We describe the methods employed for the generation of possible scenarios for term structure evolution. The problem originated as a request from the Italian Ministry of Economy and Finance to find an optimal strategy for the issuance of Public Debt securities. The basic idea is to split the… |
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We employ Lyapunov functions to study boundedness and stability of dynamic equations
on time scales. Most of our Lyapunov functions involve the term |x| and its ?-derivative.
In particular, we prove general theorems regarding qualitative analysis of solutions of delay
dynamical systems and then use… |
