نتایج جستجو برای: potential
تعداد نتایج: 1067793 فیلتر نتایج به سال:
Optical mapping allows to visualize cardiac action potentials (AP) on cardiac tissue surfaces by uorescence using voltage-sensitive dyes. So far, the surface measurements are directly related to surface AP. In a previous study was developed a method to reconstruct threedimensional depolarization front: the main idea was to solve an inverse problem using the experimental measures on the surfaces...
The dynamics of fragmentation and vibration of molecular systems with a large number of coupled degrees of freedom are key aspects for understanding chemical reactivity and properties. Here we present a resonant inelastic X-ray scattering (RIXS) study to show how it is possible to break down such a complex multidimensional problem into elementary components. Local multimode nuclear wave packets...
Noise and coupling can optimize the response of arrays of nonlinear elements to periodic signals. We analyze such array-enhanced stochastic resonance (AESR) using finite-state transition rate models. We simply derive the transition rate matrices from the underlying potential energy function of the corresponding Langevin problem. Our implementation exploits Floquet theory and provides useful the...
One of the most important parts of the qualitative theory in differential equations is the stability of solutions. The problem of stabilizing the solutions by imposing proper impulse controls is very important to many areas of the sciences and engineering. It is important, for instance, in pharmacokinetics, biotechnology, economics, chemical technology and others. We consider certain second ord...
Structures of the isomeric adamantanediyl dications C(10)H(14)(2+) and protio-1- and protio-2-adamantyl dications C(10)H(16)(2+) were investigated by using the density functional theory (DFT) method at the B3LYP/6-31G** level. Four structures, 1 b-e, were found to be minima on the potential energy surface of C(10)H(14)(2+). The 1,3-adamantanediyl dication 1b with two bridgehead tertiary carboca...
We calculate accurate potential energy curves for HeO(-), NeO(-), and ArO(-), including the full counterpoise correction and allowing for spin-orbit effects. Comparison with previous curves is presented, where these are available. The three curves, (2)Sigma(12) (+), (2)Pi(12), and (2)Pi(32), are used to derive spectroscopic constants and to calculate the transport coefficients for O(-) moving i...
We consider the supergravity origin of the recently proposed MSSM inflationary model, which relies on the existence of a saddle point along a dimension six flat direction. We derive the conditions that the Kähler potential has to satisfy for the saddle point to exist irrespective of the hidden sector vevs. We show that these conditions are satisfied by a simple class of Kähler potentials, which...
The current status of optical potentials employed in the prediction of thermonuclear reaction rates for astrophysics in the Hauser–Feshbach formalism is discussed. Special emphasis is put on α+nucleus potentials. Further experimental efforts are motivated.
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