The recently derived Fortuin, Kasteleyn and Ginibre (FKG) inequalities for lattice gasses are investigated for higher order Ising spin systems and multi-component lattice gasses. Conditions are given for the validity of the FKG inequalities for higher order spin systems with Hamiltonians of the form used recently as models for various physical systems, e.g. He — He mixtures. We also investigate...

Genesis DoS wafers are amorphous, anhydrous, tetrahedrally-coordinated diamond-like carbon (DLC) films on silicon wafers [1, 2]. Using these wafers, excellent analytical results were achieved quickly after the Genesis return for noble gasses using laser ablation [3]. Yet, obtaining precise and accurate analyses by secondary ion mass spectroscopy (SIMS) has been problematic for a decade -even wh...

Radon (222Rn) is a naturally occurring radioactive gas that originates from the decay of radium (226Ra) in the primordial uranium (238U) decay series. As a noble gas, it easily migrates through inter-granular spaces; then, because of advection, diffusion and convection with other gasses or with water, it moves through fi ssures and faults until it reaches the outdoor atmosphere. Its half-life i...

We develop statistical mechanics for a nonrelativisitic ideal gas in the presence of Lorentz violating background fields. The analysis is performed using the Standard-Model Extension (SME). We derive the corresponding laws of thermodynamics and find that, to lowest order in Lorentz violation, the scalar thermodynamic variables are corrected by a rotationally invariant combination of the Lorentz...

We provide evidence that noble gasses (NGs) trapped in Pele's hairs and tears can be used as a tool to monitor the degassing behaviour of persistently active volcanic systems. investigated 4He, 36Ar, 40Ar abundances 4He/40Ar* 40Ar/36Ar isotopic ratios samples collected March 2015 2016 from Masaya volcano (Nicaragua). The resurgence lava lake December provided opportunity NG variations during sp...

An improved plasma source for use with oxygen and other gasses has shown great stability at ion power levels almost an order of magnitude above those of the other commercially available gridless sources. The original motivation for this work was to obtain as powerful a source of oxygen ions with neutralizing electrons (plasma source) for the reactive deposition of Si02 from SiO. The results are...

Abstmct The development of a miniaturized ammonia sensor is described. First, gas is sampled into an acid sample solution using a miniaturized gas sampler. Subsequently, the solution is pumped into a selector, comprising two channels separated by a gas permeable, water repellent polypropylene membrane, while adding an alkaline solution to dissociate all acid gasses and neutralize the alkaline g...