The transmission of a vertex v graph G is the sum distances from to all other vertices in . Wiener complexity number different transmissions its vertices. Similarly, eccentric defined as eccentricities In this paper these two complexities are compared. first studied on Cartesian product graphs. Transmission indivisible graphs and arithmetic introduced demonstrate sharpness upper lower bounds co...

Existing project selection models do not consider the complexity of projects as a selection criterion, while their complexity may prolong the project duration and even result in its failure. In addition, existing models cannot formulate the aggregate complexity of the selected projects. The aggregated complexity is not always equal to summation of complexity of projects because of possible syne...

Designing a task with a reasonable level of cognitive complexity has always been important for syllabus designers, teachers, as well as researchers. This is because task manipulation may lead to different results in oral production. The present study was an attempt to explore the effect of this  manipulation  -  based  on  Robinson’s  resource-directing  model  (reasoning  demands, number of el...

Due to the particular importance of projects in human life and in organizations, proper project management has been always regarded highly by researchers and practitioners. Recent advances in technology and fundamental changes in most scientific areas have affected projects and made their nature and environmental circumstances much more complex than in the past. Fortunately, in recent years, ma...

binary decision diagram (in short bdd) is an efficient data structure which has been used widely in computer science and engineering. bdd-based attack in key stream cryptanalysis is one of the best forms of attack in its category. in this paper, we propose a new key stream attack which is based on zdd(zero-suppressed bdd). we show how a zdd-based key stream attack is more efficient in time and ...

the notion of sustainable development has rapidly gained considerable attention since the lastdecades of the twentieth century. it has become a locus for global paradigm shift on environment and development issues particularly after rio conference in 1992. the comparative analysis of agenda 21 and major un documents, mdg, and rio+20 as well as some major sources are made to provide a context fo...