This paper gives an overview of promising new developments in robust stability and performance analysis of linear control systems with real parametric uncertainty. The goal is to develop a practical algorithm for medium size problems, where medium size means less than 100 real parameters, and \practical" means avoiding combinatoric (nonpolynomial) growth in computation with the number of parame...

1. the oesophageal plexus is in the structure and arrangement of its larger branches constant. ·2 . two trunks arise from the oesophageal plexus, the . anterior vagal trunk and the posterior vagal trunk; each trunk contains fibers of both left and right vagi nerves. 3. these vagal trunks in the majority of instances pass through the oesophageal opening of the diaphragm each in the form of the o...

1. Prefatory Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Several Perspectives on Transversal Matroids . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.1. Set systems, transversals, partial transversals, and Hall’s theorem . . . . . . . . 2 2.2. Transversal matroids via matrix encodings of set systems . . . . . ....

the main purpose of this research paper is to calculate irans housing (maskan) bank through the use of data envelopment analysis. in this research, the performance of 33 branches of the housing bank throughout tehran (capital city of iran) within 2002-2004 was analyzed and discussed. the results of the study shows that average technical efficiencies of housing bank branches in two hypotheses of...

The effect of competition is an important topic in spatial ecology. This paper deals with a general two-species system open advective and inhomogeneous environments. At first, the critical values on interspecific coefficients are established, which determine stability semi-trivial steady states. Secondly, by analyzing nonexistence coexistence states using theory monotone dynamical system, we fi...

Xylariaceous fungi are typically saprobes, but are also commonly isolated as endophytes and some species are pathogens. Two species of Lopadostoma (Xylariaceae, Xylariales) are reported for the first time from Iran. L. dryophilum was found from dead branches of Quercus sp. in East Azerbaiejan and L. fagi from dead branches of Fagus sp. in Ardabil province. Based on morphology and sequence data ...