Hydrogen spillover over macroscopic distances was demonstrated and exploited in the design of two novel catalytic reactors for 1-butene isomerization. A dual-bed reactor containing separate zones of noble metal and bimetallic catalysts yielded activities up to 2.7 times greater than that of the noble metal alone. The noble metal catalyst contained palladium supported on graphitic carbon. The bi...

available online at http://meteoritics.org 747 © Meteoritical Society, 2003. Printed in USA. Noble gases in Muong Nong-type tektites and their implications Sayaka MIZOTE,1 Takuya MATSUMOTO,1 Jun-ichi MATSUDA,1* and Christian KOEBERL2 1Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560–0043, Japan 2Department of Geological Sciences, Universit...

Noble gases trapped in meteorites are tightly bound in a carbonaceous carrier labeled “phase Q.” Mechanisms having led to their retention in this phase or in its precursors are poorly understood. To test physical adsorption as a way of retaining noble gases into precursors of meteoritic materials, we have performed adsorption experiments for Ar, Kr, and Xe at low pressures (10 4 mbar to 500 mba...

All over the Earth, more and studies have shown effects of climate changes generated by anthropic release greenhouse gasses on hydrological cycle [...]

The synthesis of a long-lived, truxene-based radical that is highly delocalized and exhibits a narrow EPR absorption is reported. The radical is stable for multiple hours in a solution exposed to air and remains for months in the solid state under inert gas. Characterization and properties are discussed.

Noble gas analysis can be performed on two types of ice core samples. First, atmospheric air, trapped in bubbles in polar ice, can be extracted and analyzed for its noble gas composition. Variations in the isotopic and elemental composition of noble gases reveal changes in the composition of the paleoatmosphere or the impact of climate-related physical processes acting when the air was enclosed...

Polar ice cores constitute excellent archives of past environmental conditions and provide us with glimpses into the Earth’s climatic history over hundreds of thousands of years. For the past two decades, noble gases, used as conservative tracers, have played a substantial role in extracting information from these archives. Noble gas analysis can be performed on two types of ice core samples. F...

s/Presentations: Kowalchuk H, Melling C.W.J. and Noble E. G. (2012) Hsp70 distribution patterns in rat skeletal muscle and vasculature post high and low intensity exercise. FASEB J: March 2013. lb713. Hazell TJ, Olver TD, Kowalchuk H, McDonald MW, Dey A, Grise KN, Lavery P and Hope A (2013) Endurance exercise does not protect the decrease in bone associated with type 1 diabetes in adult rats. K...

introduction: evaluation of bonding in atomic level, by sem/eds analysis of si atoms, is an exact method for determination of bond strength of metal and porcelain. the purpose of this study was to evaluate the bond strength of one noble alloy and two base metal alloys with and without beryllium. methods and materials: six specimens of each alloy begostar, rexillium iii, wiron 99 (10×10×1mm dime...