In this paper, selecting of an appropriate mooring system for spar platform of a wind turbine consisting of chain–cable–chain is investigated based on a meta-heuristic method. The purpose is to investigate the hydrodynamic behavior of the structure and the mooring system in a normal and damaged conditions. ANSYS-AQWA software is applied to hydrodynamics analysis and the numerical results were f...

Location of soil moisture sampling in irrigation management is of special importance due to the spatial variability of soil hydraulic characteristics and the development of root system. The objective of this study was determination of the suitable location for soil moisture sampling in drip-tape irrigation management, which is representative of the average moisture in the soil profile (θavg) as...

  Background and Aims: Root canal therapy is one of the most important parts of a general dentist's profession. The aim of this study was to evaluate the radiographic quality of root canal therapy performed by under graduated students at Yazd dental school.   Materials and Methods: Records of patients, who were referred to the endodontic department during 2010-2012 and treated by undergraduated...

In this research, first, a one-dimensional stable model for a catalytic stabilization reactor is presented. All mass transfer, heat transfer and momentum equations are considered in this model with applying appropriate assumptions. The results of modeling predict temperature and concentration changes and also pressure drop along the reactor bed length. By applying the modeling, hydrazine cataly...

Background: Length of stay is one of the most important and practical indices used in hospitals today which represents the performance and efficiency of the hospitals. This study aimed to identify the factors affecting length of stay in hospitals affiliated to Tehran and Iran Universities of Medical Sciences based on Hierarchical Analysis Technique. Materials and Methods: This descriptive cros...