In this note we consider a linear-fractional programming problem with equality linear constraints. Following Rohn, we define a generalized relative sensitivity coefficient measuring the sensitivity of the optimal value for a linear program and a linear-fractional minimization problem with respect to the perturbations in the problem data. By using an extension of Rohn’s result for the linear pro...

background: we aimed to assess the high-risk group for suicide using different classification methods includinglogistic regression (lr), decision tree (dt), artificial neural network (ann), and support vector machine (svm). methods: we used the dataset of a study conducted to predict risk factors of completed suicide in hamadan province, the west of iran, in 2010. to evaluate the high-risk grou...

DHI-Mike Software is one of best softwares describing water wave diffraction in onshore/offshore concepts. Diffraction happens due to obstacles along wave direction and has an important role in designing structures. The scope of this study is to show the relation between Porosity Coefficient and its effects on Diffraction Coefficient (Cd) by means of a suitable and verified numerical model. Por...

In today's competitive world, reduction of production costs has become one of the corporates priorities. Survival triangle (cost, quality and time) is the solution that helps companies focus on these three dimensions and have the ability to compete with other companies. Cost management is the first step in this way that providing solutions and advice to managers who need help to have a precise ...

social capital is one of the most important criteria related to social network resilience. in trust networks as the most important factor of social capital in adaptive governance, sensitivity to disorders and irregularities is considerable and resiliency improvement and compatibility capacity depends on trust level in network. this research is applied in zangooi village, south khorasan province...