saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...

this work is presented in five parts. in the first part preparation of the starting complex [pt(c^n)cl(dmso)], 1, in which c^n = n(1),c(2?)-chelated, deprotonated 2-phenylpyridine, and dmso = dimethylsulfoxide, and its reaction with 1 equiv of the biphosphine ligands bis(diphenylphosphino)amine, dppa, or bis(diphenylphosphino)methane, dppm, to give the complex [pt(c^n)cl(dppa)], 2, or [pt(c^n)c...

This study scrutinize the interaction of politics - administration in Iran, as studied in the tenth government (2009-2013) has, and by analyzing the theme of semi-structured interviews with 25 political parliamentary choices, general executives in the executive branch and those who have both experienced the role. Participants are selected using the snowball method achieved unique results. The r...

abstract: in the paper of black and scholes (1973) a closed form solution for the price of a european option is derived . as extension to the black and scholes model with constant volatility, option pricing model with time varying volatility have been suggested within the frame work of generalized autoregressive conditional heteroskedasticity (garch) . these processes can explain a number of em...

the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...

Mullah Mohsen Faiz-e-Kashani (996-1077 AH) is one of the great Imami thinkers in the second period of the Safavid dynasty in Iran, who is influenced by two views of Sadra and Hadith’s philosophy. He has presented his thoughts on politics by relying on the traditions of the Ahl al-Bayt (PBUT) and focusing on the virtues of Islamic philosophy. Thus, the main question of this article is how Feyz-e...

in this thesis, a structured hierarchical methodology based on petri nets is used to introduce a task model for a soccer goalkeeper robot. in real or robot soccer, goalkeeper is an important element which has a key role and challenging features in the game. goalkeeper aims at defending goal from scoring goals by opponent team, actually to prevent the goal from the opponent player’s attacks. thi...

One of the main concerns of analysts and political thinkers after the popular revolutions and the emergence of a new wave of Islamic awakening in the West Asia and North Africa in 2011 has been the future of the political and government system in political transition countries such as Tunisia, Egypt and Bahrain. Meanwhile, the Bahrain is of great importance because of the majority of the Shia p...