This study investigates linear and nonlinear dynamic LES and unified RANS-LES models obtained by stochastic analysis regarding the simulation of the atmospheric boundary layer. The advantages of dynamic LES methods are their accuracy, the ability to account for anisotropy and backscatter, and their computational stability. The advantage of unified RANS-LES models is their ability to provide res...

Diversity is a powerful means to increase the transmission performance of wireless communications. For the case of fountain codes relaying, it has been shown previously that introducing diversity is also beneficial since it counteracts transmission losses on the channel. Instead of simply hop-by-hop forwarding information, each sensor node diversifies the information flow using XOR combinations...

background provincial health accounts (pha) as a subset of national health accounts (nha) present financial information for health sectors. it leads to a logical decision making for policy-makers in order to achieve health system goals, especially fair financial contribution (ffc). this study aimed to examine health accounts in kerman province.   methods the present analytical study was carried...

evolving models have found applications in many real world systems. in this paper, potentials of the evolving linear models (elms) in tracking control design for nonlinear variable structure systems are introduced. at first, an elm is introduced as a dynamic single input, single output (siso) linear model whose parameters as well as dynamic orders of input and output signals can change through ...

this paper deals with scrutinizing the convergence properties of iterative methods to solve linear system of equations. recently, several types of the preconditioners have been applied for ameliorating the rate of convergence of the accelerated overrelaxation (aor) method. in this paper, we study the applicability of a general class of the preconditioned iterative methods under certain conditio...

In thefollowing we prove that input oblivious simultaneously linear access-time and logarithmic space-bounded nondeterministic Turing machines are more powerful than deterministic ones. Moreover, we separate all the corresponding complexity classes Lo Hn, 7VZ0Un, co-NL0i Iîn and P~AL01infrom each other. Résumé. — Dans cet article, nous prouvons que les machines de Turing non déterministes à lec...

the aim of this study is to provide a control software system, based on monte carlo simulation, and calculations of dosimetric parameters of standard and wedge radiation fi elds, using a monte carlo method. gate version 6.1 (opengate collaboration), was used to simulate a compact 6 mv linear accelerator system. in order to accelerate the calculations, the phase-space technique and cluster compu...

Using Canadian data (1965-86) we confirm and extend Stoker's (1986) results on the rule of distributional effects in demand systems. The confirmation consists of evidence from the LES model showing that distributional effects are statistically significant and can displace AR(1) dynamics in the disturbances. The extension is made to the QES model and an argument is advanced that standard habit f...