نتایج جستجو برای: dimensional

تعداد نتایج: 398964  

2009
J. Robert Buchler

We review the current state of Cepheid modeling and discuss its dominant deficiency, namely the use of time dependent mixing length. Notwithstanding, Cepheid modeling has achieved some excellent successes, and we mention some of the most recent ones. Discrepancies between observations and modeling appear not so much in the gross properties of single mode Cepheids, but rather when more subtle no...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
mahkameh moshfeghi dept. of oral & maxillofacial radiology, dental school, shahid beheshti university of medical sciences, tehran, iran. mohammad amintavakoli dept. of oral & maxillofacial radiology, dental school, shahid beheshti university of medical sciences, tehran, iran dara ghaznavi private practice, te . hran aisan ghaznavi dept. of oral and maxillofacial radiology, school of dentistry, urmia university of medical sciences, urmia, iran

objective: cone beam computed tomography (cbct) is applied for the imaging of the maxillofacial and dental structures, particularly for surgical treatments and dental implants. the aim of this study was to assess the effect of slice thickness on the accuracy of cbct linear measurements. methods: in this diagnostic accuracy study, forty-two titanium pins with the same dimensions were inserted in...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2013
mayam abdoli rad akbar shahsavand

complex heat transfer phenomena (including unsteady state conduction, convection and solidification processes) occur in steel belt conveyer sulfur granulating method. numerical simulation of this technique is performed via a comprehensive and multifaceted one dimensional model. since the air situated between the adjacent sulfur pastilles is essentially stagnant, therefore, the surface temperatu...

Journal: :anesthesiology and pain medicine 0
masood mohseni department of anesthesiology, rasoul akram medical center, iran university of medical sciences, tehran, iran amin ebneshahidi persia research center, isfahan, iran; persia research center, isfahan, iran. tel/fax: +98-3116683568

conclusions this study indicated that the delivery rate accuracy of elastomeric infusion pumps is preserved after repeated usage. these laboratory findings suggested that elastomeric pumps could be safely refilled in the successive days to provide postoperative analgesia. results the mean flow rate in the three series of measurements showed a gradual increase; however, the difference was not st...

Journal: :international journal of civil engineering 0
b. saghafian a.r. shokoohi

time–area method is one of the most widely applied techniques of watershed routing, and can be potentially used as a distributed model. in this paper, a fundamental flaw in the arrangement of subareas in the original time-area histogram is identified for one-dimensional flow. this is conducted on the basis of comparing time-area hydrograph with that of the kinematic wave theorem. accordingly, a...

Journal: :international journal of pediatrics 0
maryam hojati phd student in clinical psychology, noore hedayat center, mashhad, iran.

introduction: autism spectrum disorders (asd) belong to the pervasive neurodevelopmental disorders. the prevalence of asd has increased significantly throughout recent decades, bringing the overall estimated prevalence to 11.3 per 1000 children. asd is characterized by severe difficulties in reciprocal social interaction, stereotyped patterns of behavior and profound impairments in verbal and n...

ژورنال: مهندسی دریا 2006
راد, منوچهر, فیروزآبادی, بهار, موسوی حکمتی, ، سید محمدرضا,

In this paper, the spreading of three-dimensional, turbulent and unsteady inclined turbidity currents has been investigated. The experimental results were normalized in the form of non-dimensional plots and then a theoretical model was developed. The current width, b, and the relative situation of the tip of the nose of turbidity current, x, are normalized with respect to the buoyancy length sc...

ژورنال: روانشناسی معاصر 2017

In recent years, there has been an increase in the playing of digital games in children, adolescents and adults worldwide. Not only has interest in digital games grown dramatically, but variations in the types of games in different fields have also occurred. An example is the emergence of three- and two-dimensional games. Based on this, the purpose of this study was to investigate the effect of...

A. Alvarado-Iniesta D. J. Valles-Rosales J. L. Garca-Alcaraz L. Perez-Domnguez

Dimensional analysis, for multi-criteria decision making, is a mathematical method that includes diverse heterogeneous criteria into a single dimensionless index. Dimensional Analysis, in its current definition, presents the drawback to manipulate fuzzy information commonly presented in a multi-criteria decision making problem. To overcome such limitation, we propose two dimensional analysis ba...

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