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A new theory is presented for calculating the Helmholtz free energy based on the potential energy distribution function. The usual expressions of free energy, internal energy and entropy involving the partition function are rephrased in terms of the potential energy distribution function, which must be a near Gaussian one, according to the central limit(More)
The Xinjiang Uyghur Autonomous Region (Xinjiang) is located near the western border of China. Xinjiang has a high frequency of dust storms, especially in late winter and early spring. Geostationary satellite remote sensing offers an ideal way to monitor the regional distribution and intensity of dust storms, which can impact the regional climate. In this(More)
In this article we present an equation of state for uids, based on the quasi-Gaussian entropy theory. The temperature dependence along iso-chores is described by a connned Gamma state, previously introduced, combined with a simple perturbation term. The eleven parameters occurring in the free energy and pressure expressions along the isochores are obtained(More)
1 We review the rst results of a 45-190 m spectroscopic study of a sample of Class 0, Class I, Class II (Herbig Ae/Be) and Herbig-Haro objects. We nd that in the observed Class 0, Class I and HH objects J shocks can account for the OI] observed intensity, while for Ae/Be stars the OI] emission is mainly due to the presence of photodissociation region. For(More)
In this article the quasi-Gaussian entropy theory is derived for pure quantum systems, along the same lines as previously done for semi-classical systems. The crucial element for the evaluation of the Helmholtz free energy and its temperature dependence is the moment generating function of the discrete probability distribution of the quantum mechanical(More)
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