This article is a study of Rostam in the 22nd Century (written in 1313 Persian calendar), a novel by Abdolhossein San’atizadeh. For this purpose, a brief introduction to San’atizadeh and his work and a summary of the story are provided. This paper then attempts to describe the sci-fi genre and its important components. Afterward, these components are presented in San’atizadeh’s novel and its ce...

One of the methods for increasing the gain in the photovoltaic systems is using the solar tracker system which during the whole of day, align the solar panels in the proper position with respect to the sun position. In this study, a solar tracker in the form of smart light curtain was designed and prepared. This simple and smart tracker detects the direction of the sun radiation by using three ...

three medium magnitude events happened inside the transitional border of south alborz and central iran; namely kahak-qom 2007/06/18 event with ml 5.6, zanjan 2008/05/27 event with ml 5.3 and aradan-garmsar 2007/11/19 event with ml 5.1. this provides us the opportunity to compute focal mechanism and stress drop of the events and compare them with those events happened within the alborz range.

abstract deviation or in other words committing a crime is literally a social problem. this research that was conducted in 1389 and 1390 has tried to investigate the causes of crimes committed by young male inmates qazvin central prison and effective variables on their tendency to deviation. accordingly after collecting theoretical framework and offering theoretical model including both hirsch...

 Background and purpose: Esthetics is a major purpose in prosthetic treatments. Choosing the right size of anterior teeth in prosthetic and edentulous patients is a major challenge for both the patient and the dentist. This study was designed to obtain approximately close ratios for selection of anterior teeth. Materials and methods: This descriptive-analytical study, was performed in 121 pati...