Accessing ultrahigh-pressure, quasi-isentropic states of matter

Weinhold’length in an Isentropic Ideal and Quasi-ideal Gas

In this paper we study thermodynamic length of an isentropic Ideal and quasi-Ideal Gas using Weinhold metric in a two-dimensional state space. We give explicit relation between length at constant entropy and work.

Formation of Delta-shocks and Vacuum States in the Vanishing Pressure Limit of Solutions to the Isentropic Euler Equations

Recent Advances in Ultrahigh-Pressure Liquid Chromatography

Please direct correspondence to James W. Jorgenson at [email protected]. Ultrahigh-pressure liquid chromatography (UHPLC) is a technique that is experiencing continued growth due to the benefits in separation power and speed of analysis over traditional HPLC. We attempt here to give an overview of some of the advances that have occurred in UHPLC since 2003, from the standpoint of both fund...

Free Quasi-free States

To a real Hilbert space and a one-parameter group of orthogonal transformations we associate a C∗-algebra which admits a free quasi-free state. This construction is a freeprobability analog of the construction of quasi-free states on the CAR and CCR algebras. We show that under certain conditions, our C∗-algebras are simple, and the free quasi-free states are unique. The corresponding von Neuma...

Penalized Composite Quasi-Likelihood for Ultrahigh-Dimensional Variable Selection.

In high-dimensional model selection problems, penalized least-square approaches have been extensively used. This paper addresses the question of both robustness and efficiency of penalized model selection methods, and proposes a data-driven weighted linear combination of convex loss functions, together with weighted L(1)-penalty. It is completely data-adaptive and does not require prior knowled...