نتایج جستجو برای: physical phenomena

تعداد نتایج: 767543  

2011
Nicola Poccia Alessio Ansuini Antonio Bianconi

Key physical concepts, relevant for the cross-fertilization between condensed matter physics and the physics of life seen as a collective phenomenon in a system out-of-equilibrium, are discussed. The onset of life can be driven by: (a) the critical fluctuations at the protonic percolation threshold in membrane transport; (b) the stochastic resonance in biological systems, a mechanism that can e...

2008
Ying-Qiu Gu

A good choice of the coordinate system is much helpful for the solving the Einstein’s equation. In this paper, we present a new coordinate system and corresponding canonical metric form closely related to the physical concepts, and their geometrical and physical meanings are discussed in detail. Under this coordinate system, the complicated Einstein’s equation could be greatly simplified. PACS ...

2013
Si-Ning Dong Yi-Ping Yao Jian-Qi Li Yuan-Jun Song Yu-Kuai Liu Xiao-Guang Li

Magnetoelectric multiferroics are materials that have coupled magnetic and electric dipole orders, which can bring novel physical phenomena and offer possibilities for new device functions. In this report, single-crystalline Bi(4.2)K(0.8)Fe(2)O(9+δ) nanobelts which are isostructural with the high-temperature superconductor Bi(2)Sr(2)CaCu(2)O(8+δ) are successfully grown by a hydrothermal method....

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Lei Yang Guang Song Robert L Jernigan

Elastic network models (ENMs) are entropic models that have demonstrated in many previous studies their abilities to capture overall the important internal motions, with comparisons having been made against crystallographic B-factors and NMR conformational variabilities. ENMs have become an increasingly important tool and have been widely used to comprehend protein dynamics, function, and even ...

Journal: :Annual review of psychology 2005
Paul W Glimcher

The central goal of modern science that evolved during the Enlightenment was the empirical reduction of uncertainty by experimental inquiry. Although there have been challenges to this view in the physical sciences, where profoundly indeterminate events have been identified at the quantum level, the presumption that physical phenomena are fundamentally determinate seems to have defined modern b...

2013
Evgenie A. Yumatov

Recently we have established the existence of a “psychogenic field”, which are most likely reflecting on the human brain subjective state. The goal of this study is to further explore the human subjective state which can be registered remotely and objectively in the context of human subjective state. The analysis of the remote influence of a human subjective state on the blood physical and chem...

2011
Arijit Chakrabarty Mark M. Meerschaert

Stable laws can be tempered bymodifying the Lévymeasure to cool the probability of large jumps. Tempered stable laws retain their signature power law behavior at infinity, and infinite divisibility. This paper develops randomwalk models that converge to a tempered stable law under a triangular array scheme. Since tempered stable laws and processes are useful in statistical physics, these random...

2011
Benjamin Sacépé Jeroen B. Oostinga Jian Li Alberto Ubaldini Nuno J.G. Couto Enrico Giannini Alberto F. Morpurgo

Three-dimensional topological insulators are characterized by the presence of a bandgap in their bulk and gapless Dirac fermions at their surfaces. New physical phenomena originating from the presence of the Dirac fermions are predicted to occur, and to be experimentally accessible via transport measurements in suitably designed electronic devices. Here we study transport through superconductin...

2009
Jörn Knoll

The decoupling and freeze-out of energetic nuclear collisions is analysed in terms of transparent semi-classical decoupling formulae. They provide a smooth transition and generalise frequently employed instantaneous freeze-out procedures. Simple relations between the damping width and the duration of the decoupling process are presented and the implications on various physical phenomena arising...

2008
W. Spencer Smith Jacques Carette John McCutchan

This paper presents a template for the commonality analysis of a family of models of physical phenomena. The commonality analysis template includes documentation of the potential system context, the variabilities between models and the common aspects shared by all family members, including sections for terminology, goals, assumptions and theoretical models. The commonality analysis document als...

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