A subgroup G of automorphisms of a graph X is said to be 2 -arc-transitive if it is vertexand edgebut not arc-transitive. The graph X is said to be 2 -arc-transitive if Aut X is 1 2 -arc-transitive. The interplay of two different concepts, maps and hypermaps on one side and 2 -arc-transitive group actions on graphs on the other, is investigated. The correspondence between regular maps and 2 -ar...

A new wave energy flow (WEF) map concept was proposed in this work. Based on it, an improved technique incorporating the laser scanning method and Betti's reciprocal theorem was developed to evaluate the shape and size of damage as well as to realize visualization of wave propagation. In this technique, a simple signal processing algorithm was proposed to construct the WEF map when waves propag...

Polycube map is a global cross-surface parameterization technique, where the polycube shape can roughly approximate the geometry of modeled objects while retaining the same topology. The large variation of shape geometry and its complex topological type in real world applications make it difficult to effectively construct a high-quality polycube that can serve as a good global parametric domain...

A minimum spanning tree of a weighted graph is a tree of the graph which contains all the vertices of the graph and the sum of weights of all its edges are minimum among all such possible trees of the graph. In this paper, we have proposed a new technique and its corresponding algorithm to construct the minimum spanning tree of a weighted graph. This new algorithm is based on the weight matrix ...

heat stress is a major environmental stress limiting wheat productivity in most cereal growing areas of the world. in order to map and characterize quantitative trait loci controlling heat tolerance, 144 recombinant inbred lines deriving from the cross of kauz and mtrwa116 were assessed in a greenhouse and growth chamber at 35°c. one hundred and sixty six ssr and 3 aflp markers were used to...

the aim of this paper is to construct a strategy map for a manufacturing company. to do so,based on the four aspects of the balanced scordcard, key performance indicators(kpi) were selected by a committee of experts. then, the decision making trial and evaluation laboratory (dematel) method was used to determind the type and intensity of relationships between key performance indicators and focu...

The study area, located in the southern section of the Central Iranian volcano–sedimentary complex, contains a large number of mineral deposits and occurrences which is currently facing a shortage of resources. Therefore, the prospecting potential areas in the deeper and peripheral spaces has become a high priority in this region. Different direct and indirect methods try to predict promising a...