نتایج جستجو برای: wellborn stability

تعداد نتایج: 299856  

Journal: :Astrobiology 2008
Andrew D Aubrey John H Chalmers Jeffrey L Bada Frank J Grunthaner Xenia Amashukeli Peter Willis Alison M Skelley Richard A Mathies Richard C Quinn Aaron P Zent Pascale Ehrenfreund Ron Amundson Daniel P Glavin Oliver Botta Laurence Barron Diana L Blaney Benton C Clark Max Coleman Beda A Hofmann Jean-Luc Josset Petra Rettberg Sally Ride François Robert Mark A Sephton Albert Yen

The Urey organic and oxidant detector consists of a suite of instruments designed to search for several classes of organic molecules in the martian regolith and ascertain whether these compounds were produced by biotic or abiotic processes using chirality measurements. These experiments will also determine the chemical stability of organic molecules within the host regolith based on the presenc...

2013
Ramaiyan Kannan Kalpana Singh Sukhdeep Gill Tobias Fürstenhaupt Venkataraman Thangadurai

Development of chemically stable proton conductors for solid oxide fuel cells (SOFCs) will solve several issues, including cost associated with expensive inter-connectors, and long-term durability. Best known Y-doped BaCeO3 (YBC) proton conductors-based SOFCs suffer from chemical stability under SOFC by-products including CO2 and H2O. Here, for the first time, we report novel perovskite-type Ba...

2017
Ji-Jing Xu Zhi-Wen Chang Yan-Bin Yin Xin-Bo Zhang

The successful development of Li-O2 battery technology depends on resolving the issue of cathode corrosion by the discharge product (Li2O2) and/or by the intermediates (LiO2) generated during cell cycling. As an important step toward this goal, we report for the first time the nanoporous Ni with a nanoengineered AuNi alloy surface directly attached to Ni foam as a new all-metal cathode system. ...

Journal: :Entropy 2008
Shu-Kun Lin

We are publishing volume 10 of Entropy. When I was a chemistry student I was facinated by thermodynamic problems, particularly the Gibbs paradox. It has now been more than 10 years since I actively published on this topic [1-4]. During this decade, the globalized Information Society has been developing very quickly based on the Internet and the term “information” is widely used, but what is inf...

2003
Franklin Allen Douglas Gale

Competition in the Þnancial sector is more complex than in the rest of the economy. On the one hand, concentration in the banking industry reduces (static) efficiency as it does in any industry. On the other hand, concentration may also affect the stability of the banking industry in ways that have no counterpart in other industries. In this paper we consider a variety of models of competition ...

2009
TYLER J. JARVIS TAKASHI KIMURA T. KIMURA

We provide a formula describing the G-module structure of the Hurwitz-Hodge bundle for admissible G-covers in terms of the Hodge bundle of the base curve, and more generally, for describing the G-module structure of the push-forward to the base of any sheaf on a family of admissible G-covers. This formula can be interpreted as a representation-ringvalued relative Riemann-Hurwitz formula for fam...

Journal: :J. Symb. Log. 2001
Tapani Hyttinen Saharon Shelah

We prove a main gap theorem for locally saturated submodels of a homogeneous structure. We also study the number of locally saturated models, which are not elementarily embeddable to each other. Through out this paper we assume that M is a homogeneous model of similarity type (=language) L . We study elementary submodels of M . We use M as the monster model is used in stability theory and so we...

2008
Ivan Nourdin

In this paper, we prove a central limit theorem for a sequence of multiple Skorohod integrals using the techniques of Malliavin calculus. The convergence is stable, and the limit is a conditionally Gaussian random variable. Some applications to sequences of multiple stochastic integrals, and renormalized weighted quadratic variation of the fractional Brownian motion are discussed.

1994
J. F. Blowey M. I. M. Copetti

We consider a fully discrete implicit nite element approximation of a model for phase separation of a multi-component alloy. We prove existence, uniqueness and stability of the numerical solution for a suuciently small time step. We prove convergence to the solution of the associated continuous problem. We perform a linear stability analysis of the equations and describe some numerical experime...

2002
D. J. M. SAMPSON D. CEBON

This paper describes the development of an active roll control system for a tractor semitrailer. The design of the hardware and software are explained. Simulations of the yaw-roll response of the vehicle show that the system will provide significant improvements in rollover stability.

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