نتایج جستجو برای: thermodynamic parameter

تعداد نتایج: 254066  

2010
Ryan Jewell

The Sounding Analog Retrieval System (SARS) is a forecasting algorithm that uses sounding derived parameters to find historical severe weather events using a database of proximity soundings associated with a particular type of severe weather. From these matches, SARS arrives at probabilistic forecasts of the severe phenomenon. SARS finds analog matches based on a short list of thermodynamic and...

Journal: :Physical review letters 2003
F G Scholtz B H Bartlett H B Geyer

We show that Wegner's flow equations, as recently discussed in the Lipkin model, can be solved self-consistently. This leads to a nonlinear differential equation which fully determines the order parameter as a function of the dimensionless coupling constant, even across the phase transition. Since we consider an expansion in the fluctuations, rather than the conventional expansion in the coupli...

2006
M. Li J. C. Li

Based on a thermodynamic model for size-dependent melting temperature, the size-dependent band-gap of low dimensional semiconductor compounds is modeled without any adjustable parameter. The model predicts an increase of the band-gap of nanoparticles and nanowires for IIBVIB and IIIB-VB semiconductor compounds, with decreasing their size, which is supported by available experimental and other t...

2017
Mark M. Wilde

The concept of temperature is critical in describing many physical phenomena, such as the transition from one phase of matter to another. Turn the temperature knob and interesting things can happen. But other knobs might be just as important for some studying some phenomena. One such knob is chemical potential, a thermodynamic parameter first introduced in the nineteenth century scientists for ...

Journal: :Physical review letters 2014
Alessandro Attanasi Andrea Cavagna Lorenzo Del Castello Irene Giardina Stefania Melillo Leonardo Parisi Oliver Pohl Bruno Rossaro Edward Shen Edmondo Silvestri Massimiliano Viale

Collective behavior in biological systems is often accompanied by strong correlations. The question has therefore arisen of whether correlation is amplified by the vicinity to some critical point in the parameters space. Biological systems, though, are typically quite far from the thermodynamic limit, so that the value of the control parameter at which correlation and susceptibility peak depend...

2001
Guofu Niu David L. Harame

A unified approach to RF and microwave noise parameter modeling in bipolar transistors is presented. Circuit level noise parameters including the minimum noise figure, the optimum generator admittance, and the noise resistance are analytically linked to the fundamental noise sources and the y-parameters of the transistor through circuit analysis of the chain noisy two-port representation. Compa...

2014
Yegor Korovin Kostas Skenderis Marika Taylor

We construct analytically an asymptotically Lifshitz black brane with dynamical exponent z = 1 + ǫ2 in an Einstein-Proca model, where ǫ is a small parameter. In previous work we showed that the holographic dual QFT is a deformation of a CFT by the time component of a vector operator and the parameter ǫ is the corresponding deformation parameter. In the black brane background this operator addit...

2009
M. Uchimiya L. Gorb M. Qasim

Nitroaromatic and cyclic nitramine compounds are frequently encountered as energetic residues in live-fire military training ranges. Careful assessment on the redox fate of current and emerging explosives will allow accurate assessment of potential site risks and remediation strategies to protect the warfighter. This study employed the naturally-occurring reductant ferrous iron to investigate t...

Journal: :Journal of Solution Chemistry 2023

Abstract The JESS (Joint Expert Speciation System) Thermodynamic Database (v8.9) is now available as a set of freely PDF files. This reaction database contains about 280,000 thermodynamic parameters (equilibrium constants, enthalpies, etc.) published in the literature for over 80,000 chemical reactions. It grounded tradition Stability Constants Special Publications (by Chemical Society) but it ...

2005
Masanao Aoki

This paper examines asymptotic behavior of two types of economic or financial models with many interacting heterogeneous agents. They are oneparameter Poisson-Dirichlet models, also called Ewens models, and its extension to two-parameter Poisson-Dirichlet models. The total number of clusters, and the components of partition vectors (the number of clusters of specified sizes), both suitably norm...

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