in this paper, optimum location of power system stabilizers in order to damp inter-area oscillations has been investigated by using modal series method. nonlinear effects grow in dynamical behaviors of heavily loaded stressed power systems significantly. hence linear based methods and techniques no longer present clear and exact response of the systems. in this article by defining new nonlinear...

background: esophageal cancer is one of the prevalent cancers in east azerbaijan province. the aims of this study are to estimate the survival rate of patients with esophageal cancer by treatment modalities and tumor location, as well as risk factors such as cigarette smoking, family history, age at diagnosis, and gender. materials and methods: in a cross-sectional study we evaluated 142 patien...

Most previous studies dealing with business site selection decisions have been theoretical and mainly concerned with cost factors. There are many variables other than cost, some of which are qualitative and intangible in nature. This study attempts to provide empirical evidence on the importance of cost and other location-related variables. The 84 fastest-growing businesses in New England and N...

Abstract The world is facing more energy crises due to extreme weather and the rapidly growing demand for electricity. Siting new substations optimizing location of existing ones are necessary address crisis. current site selection lacks consideration spatial temporal heterogeneity in urban power demand, which results unreasonable transfer waste, leading outages some areas. Aiming maximize grid...

We consider the bilevel uncapacitated facility location problem with user preferences. It is known that this model may be reformulated as a one-level location problem with some additional constraints. In this paper we introduce a new reformulation and show that this reformulation dominates three previous ones from the point of view of their linear programming relaxations and may be worse than a...

The location of the Escherichia coli RNase P cleavage site was studied both in vitro and in vivo. We show that selection of the cleavage site is dependent on the nucleotide at the cleavage site and the length of the acceptor-stem. Within the acceptor-stem the number of nucleotides on the 5'-half of the acceptor-stem appears to be the important determinant, rather than the number of base pairs i...

As one of the promising renewable energy resources, solar-wind energy has increasingly become a regional engine in leading the economy and raising competitiveness. Selecting a solar-wind power station location can contribute to efficient utilization of resource and instruct long-term development of socio-economy. Since the selection procedure consists of several location alternatives and many i...

Using Greedy Clustering Method to Solve Capacitated Location-Routing Problem with Fuzzy Demands Abstract In this paper, the capacitated location routing problem with fuzzy demands (CLRP_FD) is considered. In CLRP_FD, facility location problem (FLP) and vehicle routing problem (VRP) are observed simultaneously. Indeed the vehicles and the depots have a predefined capacity to serve the customerst...

There is a need for non-renewable energy sources in generation of power almost every domestic and commercial purposes. This source helps the development country. Because increasing usage fossil fuels depletion these resources, our focus has been shifted towards renewable like solar, water wind. Therefore, present scenario, rapidly. Selection solar plant (SPP) requires environmental factor, loca...

Many of the mechanisms that govern splice site selection and splice site partner assignment during pre-mRNA splicing are obscure. To address this problem, we analyzed the splicing of transcripts containing chimeric introns or splice site duplications derived from two natural yeast genes. Our experiments indicate that there are strong context effects that influence splicing efficiency and relati...