The longest (s,t)-path problem on supergrid graphs is known to be NP-complete. However, the complexity of this with or without holes still unknown.In past, we presented linear-time algorithms for solving L-shaped and C-shaped graphs, which form subclasses holes. In paper, will determine O-shaped a subclass These are rectangular It worth noting that contain as subgraphs, but there no inclusion r...

Contractor selection is one of the most important problem in supply chain and itsstrongly effect on firm`s performance. Because a significant amount of auniversity`s budget assigns to construction contracts, contractor selection is animportant problem for the financial status of universities. Since Contractor selectionis a multi-criteria decision making problem (MCDM), lots of methods proposed ...

Average age at dianogsis,clinical features,and karyotype analysis of 40 girls with turner,s Syndrome (TS) were studied.the medical records of 40 girls with TS were reviewed for age at dianogsis.clinical features,karyotype analysis and erasons of admission in pediatric endocrinology ward.although lymphedema is the key to diagnosis in newborn period,none of the cases were diagnosed in infancy.the...

in this paper, two inverse problems of stephen kind with local (dirichlet) boundary conditions are investigated. in the first problem only a part of boundary is unknown and in the second problem, the whole of boundary is unknown. for the both of problems, at first, analytic expressions for unknown boundary are presented, then by using these analytic expressions for unknown boundaries and bounda...

sinc-galerkin method based upon double exponential transformation for solving troesch's problem was given in this study. properties of the sinc-galerkin approach were utilized to reduce the solution of nonlinear two-point boundary value problem to same nonlinear algebraic equations, also, the matrix form of the nonlinear algebraic equations was obtained.the error bound of the method was fo...

In the present paper we give a partially negative answer to a conjecture of Ghahramani, Runde and Willis. We also discuss the derivation problem for both foundation semigroup algebras and Clifford semigroup algebras. In particular, we prove that if S is a topological Clifford semigroup for which Es is finite, then H1(M(S),M(S))={0}.