Empirical corrections to snow creep pressure equations

Particle Rearrangement and Dislocation Creep in a Snow-densification Process

Scalar Corrections to the Cosmological Equations

A consistent approach to Cosmology requires an explicit averaging of the Einstein equations, to describe a homogeneous and isotropic geometry. Such an averaging will in general modify the Einstein equations. The averaging procedure due to Buchert has attracted considerable attention recently since it offers the tantalizing hope of explaining the phenomenon of dark energy through such correction...

On temperature corrections to Einstein equations

The temperature correction to the Einstein action is considered which does not depend on the Planck energy physics. The leading correction may be interpreted in terms of the temperature dependent effective gravitational and cosmological constants. The correction to the gravitational constant appears to be valid for all temperatures T ≪ EPlanck. It is universal since it is determined only by the...

APPLICATION OF PARTIAL DIFFERENTIAL EQUATIONS IN SNOW MECHANICS

In the present work, failure of a snow slab is analyzed by accounting Normal mode criteria. The analysis has been extended to include residual stress into the model (in addition to body forces). Intensity of crack energy release rate, and displacement components have been derived and their values have been estimated. The obtained results have been compared with the existing snow slab failure mo...

Empirical Correlations and an Artificial Neural Network Approach to Estimate Saturated Vapor Pressure of Refrigerants

The examination of available vapor pressure data in the case of the methane, ethane, propane and butane halogenated refrigerants, allowed recommendations of standard equations for this property. In this study, three new models include a general correlation; a substance-dependent correlation and an artificial neural network (ANN) approach have been developed to estimate the saturated vapor press...