due to agriculture is a risky activity and risk models is important in order to analyze the behavior of farmers, hence, in this study, the factors affecting risk-taking and risk aversion is the region grape growers. data analysis was performed by using stochastic frontier. data gathered by questionnaires at three counties of zabol, hirmand and zahak at 265 grape farmers in crop year of 2011-201...

Bioluminescence tomography (BLT) is a promising optical molecular imaging technique on the frontier of biomedical optics. In this paper, a generalized hybrid algorithm has been proposed based on the graph cuts algorithm and gradient-based algorithms. The graph cuts algorithm is adopted to estimate a reliable source support without prior knowledge, and different gradient-based algorithms are seq...

The A* algorithm is the de facto standard used for pathfinding search. IDA* is a space-efficient version of A*, but it suffers from cycles in the search space (the price for using no storage), repeated visits to states (the overhead of iterative deepening), and a simplistic leftto-right traversal of the search tree. In this paper, the Fringe Search algorithm is introduced, a new algorithm inspi...

manoeuvre, is one of the principles of war in most of the world’s armies. mobility and manoeuvre of the operational and support forces in the battle fields occur in bed of natural and cultural geographic factors, i.e, avenue approach and frontier transportation networks. so for this reason analyzing this geographical factors in skills such as line identification in tactical and operational leve...

Data envelopment analysis (DEA), originally developed to study production efficiency of micro-level organizations, has recently been used to construct a production-frontier approach to the analysis of international macroeconomic growth and convergence patterns. DEA methods are used to construct the convex production frontier and this construction is then employed to decompose productivity growt...

Consider a planar Brownian motion run for nite time. The frontier or \outer boundary" of the path is the boundary of the unbounded component of the complement. Burdzy (1989) showed that the frontier has innnite length. We improve this by showing that the Hausdorr dimension of the frontier is strictly greater than 1. (It has been conjectured that the Brownian frontier has dimension 4=3, but this...

This paper considers a scheduling problem in flexible flow shops environment with the aim of minimizing two important criteria including makespan and cumulative tardiness of jobs. Since the proposed problem is known as an Np-hard problem in literature, we have to develop a meta-heuristic to solve it. We considered general structure of Genetic Algorithm (GA) and developed a new version of that b...

Automatic-test-pattern generation algorithms generate circuit test patterns, can identify redundant circuit logic and compare various circuit implementations. Functional test is impractical for larger circuits and E-beam testing was very expensive. To overcome the above said difficulties structural test is used. D algorithm was proposed for pattern generation but this algorithm proved to be hig...

With the rapid growth of large graphs, we cannot assume that graphs can still be fully loaded into memory, thus the disk-based graph operation is inevitable. In this paper, we take the shortest path discovery as an example to investigate the technique issues when leveraging existing infrastructure of relational database (RDB) in the graph data management. Based on the observation that a variety...