نتایج جستجو برای: symmetric and asymmetric modes
تعداد نتایج: 16868619 فیلتر نتایج به سال:
This article examines the dynamical coupling between the stratosphere and troposphere by considering the effect of direct perturbations to stratospheric potential vorticity on the evolution of midlatitude baroclinic instability in a simple extension of an Eady model. A simulation in which stratospheric potential vorticity is exactly zero is used as a control case, and both zonally symmetric and...
The dissipative vibrational dynamics of a symmetric triatomic ABA molecule is extensively studied in a series of three papers. The momentum-dependent rotor model is used to describe the dynamical behavior of an ABA molecule with a single 1:1 nonlinear resonant coupling. Four characteristic modes, including symmetric normal modes, asymmetric normal modes, local modes, and quasi-local modes, are ...
The oil price and the real effective exchange rate (REER) are two important variables affecting OPEC countries politics and economy. Despite the fact that the existing theoretical literature confirms the relationship between oil price and the exchange rate (Dollar), there is no consensus about the direction of causality between these two variable. Also, statistical data shows that there is a sy...
Over the past three decades vertical price transmission analysis has been the subject of considerable attention in applied agricultural conomics. It has been argued that the existence of asymmetric price transmission generates rents for marketing and processing agents. Retail prices allegedly move faster upwards than downwards in response to farm level pricemovements. This is an important issue...
In this paper, a new configuration for symmetrical and asymmetrical multilevel inverters is proposed. In asymmetric mode, different algorithms are suggested in order to determine the magnitudes of DC voltage sources. The merit of this topology to the conventional symmetric and asymmetric inverters is verified by the provided comparisons. This topology uses a lower number of power electronic dev...
Energy is one of the factors used in most economic activities. The economic security of most countries depends on secure access to energy. Therefore, the production and consumption of energy and its optimal use are of particular importance. The purpose of this study is to investigate the relationship between energy consumption and economic growth in the framework of nonlinear self-regressi...
Status of this Memo This RFC speciies an IAB standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "IAB OOcial Protocol Standards" for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract This document provides deenitions, formats, references, an...
Abstract: We study fermionic zero modes in the self-dual vortex background on an extra torus in 5+1 dimensions. It is shown that the self-dual vortex arises from the symmetric phase and the asymmetric phase of Higgs field in the context of generalized Abelian Higgs model. Then we analyze the Dirac operator on the extra two-dimensional space and the effective Lagrangian of four-dimensional fermi...
Empirical studies show that there is stronger dependency between large losses than large profit in financial market, which undermine the performance of using symmetric distribution for modeling these asymmetric. That is why the assuming normal joint distribution of returns is not suitable because of considering the linier dependence, and can be lead to inappropriate estimate of VaR. Copula theo...
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