The effects of hot-rolling (HR), cold-rolling (CR), and HR + CR followed by aging on the microstructure mechanical properties medium-entropy alloy (MEA) Ni43.4Co25.3Cr25.3Al3Ti3 were investigated. geometrically-necessary dislocation (GND) density increased with increasing cold rolling reduction to 1.8–2.4 × 1014 m−2, which is eight times 2.9 1013 m−2 found in as-hot-rolled MEA. Higher before le...

an analytical equation of state is applied to calculate the thermodynamic properties for argon. theequation of state is that of song and mason. it is based on a statistical-mechanical perturbation theory ofhard convex bodies and can be written as fifth-order polynomial in the density. there exist three temperaturedependentparameters: the second virial coefficient, an effective molecular volume,...

We introduce an entropy of the form −Tr(ρnlogρ) to investigate quantum mechanical properties, like entanglement, for mixed states. We compare it to other quantum entropies where the power of the density matrix has been used to obtain more information than the Von Neumann entropy. We discuss both the pure state case and the mixed state case (Werner state) with special regard to separability. The...

The elastocaloric effect in the vicinity of the martensitic transition of a Cu-Zn-Al single crystal has been studied by inducing the transition by strain or stress measurements. While transition trajectories show significant differences, the entropy change associated with the whole transformation (DeltaS_(t)) is coincident in both kinds of experiments since entropy production is small compared ...

We study the long-time stability of shock-free solutions of hyperbolic systems of conservations laws, under arbitrarily large initial disturbance in L2∩L∞. We use the relative entropy method, a robust tool which allows us to consider rough and large disturbances. We display practical examples in several space dimensions, for scalar equations as well as isentropic gas dynamics. For full gas dyna...

A key test of any quantum theory of gravity is its ability to reproduce the known thermodynamic properties of black holes. A statistical mechanical description of the Bekenstein-Hawking entropy once seemed remote, but today we suffer an embarrassment of riches: many different approaches to quantum gravity yield the same entropy, despite counting very different states. This " universality " sugg...

We develop a physical analogy for the Kalman-Bucy filter, in which the partially observed signal describes a statistical mechanical system interacting with a heat bath. The ‘universe’ comprising this system and the heat bath obeys a non-decrease law of entropy similar to the Second Law of Thermodynamics. However, this law can be violated in the presence of partial observations. Like Maxwell’s d...

Parametric and nonparametric data processing schemes for analyzing translating laser speckle data used to investigate the mechanical behavior of biological tissues are examined. Cross-correlation, minimum mean square estimator, maximum likelihood, and maximum entropy approaches are discussed and compared on speckle data derived from cortical bone samples undergoing dynamic loading. While it was...

EDITORIALS 211 inotropic agents (such as the catecholamines, calcium ions, and digitalis), and paired electrical stimulation. Entropy also increases during congestive heart failure, which may be thought of as an expression of a defect in the utilization of energy, a partial chemicomechanical uncoupling. The entropy of the myocardial cell tends to be reduced by negative inotropic agents, such as...

We propose a decision-theoretic sparsification method for Gaussian process preference learning. This method overcomes the lossinsensitive nature of popular sparsification approaches such as the Informative Vector Machine (IVM). Instead of selecting a subset of users and items as inducing points based on uncertainty-reduction principles, our sparsification approach is underpinned by decision the...