in order to survive in today's competitive world, organizations are looking to increase their efficiency and effectiveness. therefore, they should focus on inputs that are more important than the rest of the inputs in their success. this paper aimed at ranking 7ms (management, man power, marketing, material, machinery, methods and money) and their sub-criteria of production in iran. by imp...

The polynomial-time hierarchy has been studied extensively since it lies between the class P of languages accepted deterministically in polynomial time and the class PSPACE of languages accepted (deterministically or nondeterministically) in polynomial space. Since the P =? NP problem is still unsolved, it is not known whether the hierarchy is nontrivial, although it is known that there is a re...

Energy scarcity is one of the most critical problems that occur in wireless sensor networks compared to traditional networks. However, by using spatial correlation, which is a characteristic of wireless sensor networks due to close field sampling, we could explore the problem further and address practical solutions. Based on a new cost criterion, two algorithms for power optimization amongst hi...

Many scientists are interested in but puzzled by the various inverse power laws with a negative exponent 1 such as the rank-size rule. The rank-size rule is a very simple scaling law followed by many observations of the ubiquitous empirical patterns in physical and social systems. Where there is a rank-size distribution, there will be a hierarchy with cascade structure. However, the equivalence...

We consider a multiple access channel where the users choose their best power control strategy in order to selfishly maximize their energy-efficiency. To increase the utilities with respect to the classical non-cooperative game, we introduce hierarchy in two ways. On the one hand, assuming singleuser decoding at the receiver, we investigate a Stackelberg formulation of the game where one user i...

Wireless sensor networks (WSNs) are among the most natural applications of energy harvesting techniques. Sensor nodes, in fact, are usually deployed in harsh environments with no infrastructured power supply and they are often scattered over wide areas where human intervention is difficult and expensive, if not impossible at all. As a consequence, their actual lifetime is limited by the duratio...

The CPS hierarchy of control operators shifti/reseti of Danvy and Filinski is a natural generalization of the shift and reset static control operators that allow for abstracting delimited control in a structured and CPS-guided manner. In this article we show that a dynamic variant of shift/reset, known as shift0/reset0, where the discipline of static access to the stack of delimited continuatio...

We study the perception of situational power in written dialogs in the context of organizational emails and contrast it to the power attributed by organizational hierarchy. We analyze various correlates of the perception of power in the dialog structure and language use by participants in the dialog. We also present an SVM-based machine learning system using dialog structure and lexical feature...