Showing 1 - 10 of 187
We present a qualitative analysis of the flow pattern in cerebral aneurysms and the effect on the velocity reduction of stent implantation. We use the Lattice Boltzmann (LB) method, which implements a mesoscopic dynamics of the interactions between fictitious particles. LB provides an efficient...
Persistent link: https://www.econbiz.de/10011051083
A general finite element framework for the application to different types of phase transforming alloys and under general thermo-mechanical loadings is presented. The developed technique is exemplified on cubic to tetragonal transformations of shape memory alloys.
Persistent link: https://www.econbiz.de/10010870459
The statistical proprieties of complex systems can differ deeply for those of classical systems governed by Boltzmann–Gibbs entropy. In particular, the probability distribution function observed in several complex systems shows a power-law behavior in the tail which disagrees with the standard...
Persistent link: https://www.econbiz.de/10010872225
Wuttig and Suzuki's model on anelastic nonlinearities in solids in the vicinity of martensite transformations is analysed numerically. This model shows chaos even in the absence of applied forcing field as a function of a temperature dependent parameter. Even though the model exhibits sustained...
Persistent link: https://www.econbiz.de/10010873369
Coating carbon nanotubes (CNTs) with peptides can solubilize the nanotubes in water solvent. To explore the utilization of CNTs in solvent and the affinities of CNTs for different peptides, binding free energies of peptides to single-walled carbon nanotubes (SWCNTs) are calculated and analyzed....
Persistent link: https://www.econbiz.de/10010874069
We discuss a sampling algorithm which generates flat histogram in energy. In combination with transition matrix Monte Carlo, the density of states and derived quantities such as entropy and free energy as a function of temperature can be computed in a single simulation.
Persistent link: https://www.econbiz.de/10010874769
The analysis framework discussed and employed in this paper utilizes the recent recognition that exergy is a form of environmental free energy to provide a fundamental basis for valuing environmental interactions independent from their secondary impacts. The framework is comprised of two...
Persistent link: https://www.econbiz.de/10011054044
The expression of the free energy density of a classical crystalline system as a gradient expansion in terms of a set of order parameters is developed using classical density functional theory. The goal here is to extend and complete an earlier derivation by Löwen et al. [Europhys. Lett. 9...
Persistent link: https://www.econbiz.de/10011057478
The stability of the DNA duplex depends on its sequence rather than on its composition (the relative proportions of the four nucleotides or bases A,C,G and T). This fact was recognized since the eighties by several authors. They calculated the duplex relative stability and temperature-dependent...
Persistent link: https://www.econbiz.de/10011058355
The Feynman–Kac theorem and Bogolyubov inequality are applied to obtain a lower bound and an upper bound to the free energy of the s–d Hamiltonian with locally smeared interactions between electrons and impurities. The two bounds, which express in terms of the free energy of impurities in a...
Persistent link: https://www.econbiz.de/10011058932