We present a new Approximate Riemann Solver (ARS) for the gas dynamics equations in Lagrangian coordinates and with general non linear pressure laws. The design of this new ARS relies on a generalized Suliciu pressure relaxation approach. It gives by construction the exact solutions for isolated entropic shocks and we prove that it is Lipschitzcontinuous and satisfies an entropy inequality. Fin...

The sampling method has been paid much attention in the field of complex network in general and statistical physics in particular. This paper presents two new sampling methods based on the perspective that a small part of vertices with high node degree can possess the most structure information of a network. The two proposed sampling methods are efficient in sampling the nodes with high degree....

The purpose of the present study is to explain sociologically the couples’ common life relationships by family educative patterns. Statistical population includes 10692 couples in Farashband City. The sample size of this research is estimated 370 people using SPSS Software. A multi-stage random sampling method used which was according to blocking map of Farashband city. A number of blocks were ...

social responsibility is a collection of duties and commitments the organization should undertake to preserve, treat and help the society in which it operates. the aim of this study was to investigate the effect of experience mediator on the relationship between managers' social responsibility and customer loyalty in sport clubs. the research method was correlation- survey. the statistical...

in zero acceptance number sampling plans, the sample items of an incoming lot are inspected one by one. the proposed method in this research follows these rules: if the number of nonconforming items in the first sample is equal to zero, the lot is accepted but if the number of nonconforming items is equal to one, then second sample is taken and the policy of zero acceptance number would be appl...

Compressive sensing (CS) theory demonstrates that by using uniformly-random sampling, rather than uniformly-spaced sampling, higher quality image reconstructions are often achievable. Considering that the structure of sampling protocols has such a profound impact on the quality of image reconstructions, we formulate a new sampling scheme motivated by physiological receptive field structure, loc...

Pathway analysis provides a powerful approach for identifying the joint effect of genes grouped into biologically-based pathways on disease. Pathway analysis is also an attractive approach for a secondary analysis of genome-wide association study (GWAS) data that may still yield new results from these valuable datasets. Most of the current pathway analysis methods focused on testing the cumulat...

the purpose of this study is to adapt, normalize and to determine reliability and validity of wisc- i i i. at adaptation stage, 835 students were selected through a systematic from 30 schools, after completion the test, suitable items were chosen according to iranian culture. then, at normalizing stage, 2456 boys and girls were selected through a systematic random sampling from 72 educational d...

This paper presents a sampling-based method for path planning in robotic systems without known cost-to-go information. It uses trajectories generated from random search to heuristically learn the cost-to-go of regions within the configuration space. Gradually, the search is increasingly directed towards lower cost regions of the configuration space, thereby producing paths that converge towards...