The purpuse of this essay is that scrutiny semblance of ancient myths of iran and comparison of those. The author mentions his theory about to how start of myths then he conclude the relation between myth and philosophy. In continue he scrutiny of most important similes between persian myths and adventures of prophets and unmerciful kings which mention in holy books. For example similes between siavoosh and abraham.The most important conclude of these essay is reletions between myths and historical adventures or between two diffrent myths and how efficacy of those.

We present a cost-optimal and adaptive parallel algorithm for generating t-ary trees with P-sequences. The computational model employed in this algorithm is an exclusive read exclusive write with a shared memory single instruction multiple data computer. Our parallel algorithm is the first designed P-sequence generation on this model.Prior to the discussion of this parallel algorithm, a new sequential algorithm for generation of t-ary trees with Per sequence in O(1) constant average time per sequence is presented.

The plot of some narratives is structured in a way that it can encapsulate paradoxical and opposite states. Conceptualization of these kinds of narratives based on classic cosmology to which most of us are accustomed is not possible; another cosmology such as quantum cosmology, however, might be helpful. The text can be interpreted through “multiverse theory, ” because in this cosmological framework of quantum mechanics the conjoining of the opposite states is possible. This article is an interdisciplinary attempt to analyze different kinds of the so-called “multiverse narratives.” The major question of this article is to explore the relationship between the notion of parallel universes in physics and narrative semantics. My purpose is to find out the function of the notion of parallel worlds in narrative semantics. Thus, I argue that various sorts of multiverse narratives invite the reader to reflect on the nature of space, time, identity, and memory by challenging the boundary between actual and virtual world.

In an international connection which different factors of legal relation were spread in different countries, bringing of several actions with the same object in different countries court was completely probable. Each party with various reasons seeks litigation in a court providing their interest in better way. However, parallel litigation in it, the same object impose burdensome charges on litigant’s parties and judiciary systems and will cause an impediment for recognition of foreign judgments. Profound difference legal systems and direct relation of jurisdiction issue with sovereignty rights of states is an impediment for existence of uniform and worldwide resolution for settlement of parallel litigation problem. In some way, many of treaties and model laws merely have been satisfied with defective integration and cause akind of mediation between rules of major legal systems.  

Input-parallel Output-parallel DC-DC converters are convenient for high voltage and high current applications. One important goal of this type connection is to power-share and reduce circulating current between the converters. Therefore, control methods for power-sharing between converters should be used when the parameters mismatch. In this paper, a configuration comprising two DC-DC common grounded Z-source converters with Input-parallel Output-parallel connections is presented, which common grounded Z-source converter have advantages over similar converters. This study proposes two control strategies: (1) a decentralized inverse-droop control, (2) a general control strategy. Inverse-droop control is a simple method and does not need any communication between parallel converters. In the general control strategy, each converter is self-contained, and no external controller is required for achieving input/ Output Current Sharing, and a few wires are needed to create the entire system. The simulation results of an Input-parallel Output-parallel system comprising two common grounded Z-source converters are evaluated for investigating effectiveness of general control and inverse-droop control. It reported performance of the general control method to be better than the decentralized inverse-droop control method, which enhances the stability and dynamic characteristics of the system. The validity of the two control strategies has been studied through MATLAB simulation and the results were satisfactory.

In this paper, we study different methods of solving joint redundancy-availability optimization for series-parallel systems with multi-state components. We analyzed various effective factors on system availability in order to determine the optimum number and version of components in each sub-system and consider the effects of improving failure rates of each component in each sub-system and improving reliability of each sub-system. The target is to determine optimum values of all variables for improving the availability level and decreasing the total cost of the system. At first, the exact values of variables are determined using a mathematical model, then, the results of SAparallel, VDO-parallel and genetic algorithms are compared with the exact solution.