according to interactions in multiple grade classes, the present study aims to compare different class compositions in three different groups of fourth-grade multiple grade students in implicit learning and academic achievement. statistical population consists of all fourth grade public elementary school students in piranshahr. 3 groups of students including 8 girls and 8 boys were randomly sel...

We examine the interactions of knowledge and awareness in dynamic epistemic logic. Implicit knowledge describes the things that an agent could infer from what is known, if the agent were aware of the necessary concepts. Reasoning techniques that are robust to incomplete awareness are important when considering interactions of automated agents in complex dynamic environments, such as the semanti...

A simple explicit–implicit finite element tearing and interconnecting (FETI) algorithm (AFETI-EI algorithm) is presented for partitioned transient analysis of linear structural systems. The present algorithm employs two decompositions. First, the total system is partitioned via spatial or domain decomposition to obtain the governing equations of motions for each partitioned domain. Second, for ...

Based on a simple stability analysis for the semi{implicit Euler discretization a new dynamic sparsing procedure is derived. This procedure automatically eliminates \small" elements of the Jacobian matrix. As a consequence, the amount of work needed to handle the linear algebra within a semi{implicit extrapolation integrator can be reduced drastically. Within the course of integration the spars...

An implicit unsteady upwind solver including a mesh motion approach was applied to simulate a helicopter including body, main rotor and tail rotor in hover flight. The discretization was based on a second order finite volume approach with fluxes given by the Roeand#39;s scheme. Discretization of Geometric Conservation Laws (GCL) was devised in such a way that the three-dimensional flows on arbi...

Objective: The aim of this study was to compare the experiential avoidance, explicit and implicit attraction beliefs in obese and normal body mass index (BMI) females. Materials and Methods: This was an analytic cross sectional study. About 400 females (between 20-43 years old) were selected from nutrition and obesity clinics by convenience sampling method. The 40 items avoidance questionnaire...

LOW-RANK ITERATIVE METHODS FOR PROJECTED GENERALIZED LYAPUNOV EQUATIONS TATJANA STYKEL Abstract. We generalize an alternating direction implicit method and the Smith method for large-scale projected generalized Lyapunov equations. Such equations arise in model reduction of descriptor systems. Low-rank versions of these methods are also presented, which can be used to compute low-rank approximat...

Metaballs are a useful technique to model blobby surfaces. Because metaballs define an implicit surface, rendering is difficult. We seek to render the surface directly via ray-casting, to precisely locate the isosurfaces and preserve the concise representation of the surface. To perform this rendering at interactive rates on dynamic data, we will use acceleration structures for fast surface cal...

Physics-based animation of soft or rigid bodies for real-time applications often suffers from numerical instabilities. We analyse one of the most common sources of unwanted behaviour: the numerical integration strategy. To assess the impact of popular integration methods, we consider a scenario where soft and hard constraints are added to a custom designed deformable linear object. Since the go...

In this paper we consider the numerical solution of large-scale projected generalized continuous-time and discrete-time Sylvester equations with low-rank right-hand sides. First, we present the results on the sufficient conditions for the existence, uniqueness, and analytic formula of the solutions of these equations. Second, we review the low-rank alternating direction implicit method and the ...