An endothermic phase change in the presence of chemical heterogeneitles can act as an efficient filter, such that heavy material is sequestered below the phase change and light material is trapped above the phase change. Due to the fact that the endothermlc phase change damps thermal convection, it can act as a "trap door" for chemical heterogeneitles Ascending flows which are chemically dense ...

Recent work has produced a theory for tropical convective available potential energy (CAPE) that highlights the Clausius-Clapeyron (CC) scaling of the atmosphere’s saturation deficit as a driver of increases in CAPE with warming. Here we test this so-called “zero-buoyancy” theory for CAPE by modulating the saturation deficit of cloud-resolving simulations of radiative-convective equilibrium in ...

The change in entropy, DS , at the first-order magnetoelastic phase transition in Gd5(SixGe12x)4 alloys for x<0.5 has been measured with a high-sensitivity differential scanning calorimeter with built-in magnetic field, H. Scaling of DS is achieved by changing the transition temperature, Tt , with x and H from 70 to 310 K. Tt is thus the relevant parameter in determining the giant magnetocalori...

The moisture sorption isotherms of Chilean papaya were determined at 5, 20, and 45 oC, over a relative humidity range of 10-95%. The GAB, BET, Oswin, Halsey, Henderson, Smith, Caurie and Iglesias-Chirife models were applied to the sorption experimental data. The goodness of fit of the mathematical models was statistically evaluated by means of the determination coefficient, mean relative percen...

A semiempirical ansatz to compute anharmonic contributions to the free energy neglected in quasiharmonic calculations is introduced. A parametrized temperature-dependent modification of the vibrational density of states designed to be used directly with the quasiharmonic free-energy expression is proposed. An approximate relationship between the modified frequencies and the renormalized frequen...

It is proven that the Clapeyron–Mendeleev equation, originally discovered for gases with large entropy, describes state of dark matter/energy due to enormous self-gravitation. shown matter exists as compact cold neutrino stars at positive temperature size twice Schwarzschild radius. In contrast, energy below absolute zero, which locked entirely in black holes, where pressure negative required U...

Accurate phase diagrams of multicomponent plasmas are required for the modeling dense stellar plasmas, such as those found in cores white dwarf stars and crusts neutron stars. Those have been computed using a variety standard techniques, which suffer from physical computational limitations. Here we present an efficient accurate method that overcomes drawbacks previously used approaches. In part...