نتایج جستجو برای: class analysis

تعداد نتایج: 3135179  

Journal: :journal of dental materials and techniques 0
mohammad javad moghaddas dental research center, department of operative dentistry, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) hamideh ameri dental research center, department of operative dentistry, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) hossein abachizadeh department of operative dentistry, faculty of dentistry, zahedan university of medical sciences, zahedan, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی زاهدان (zahedan university of medical sciences)

introduction: the aim of this study was to evaluate the effect of proximal contour of class ii composite restorations placed with straight or contoured matrix band using composite resins with different modulus of elasticity on stress distribution by finite element method. methods: in order to evaluate the stress distribution of class ii composite restorations using finite element method, upper ...

ژورنال: اندیشه آماری 2017
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‎Latent class analysis (LCA) is a method of evaluating non sampling errors‎, ‎especially measurement error in categorical data‎. ‎Biemer (2011) introduced four latent class modeling approaches‎: ‎probability model parameterization‎, ‎log linear model‎, ‎modified path model‎, ‎and graphical model using path diagrams‎. ‎These models are interchangeable‎. ‎Latent class probability models express l...

Mahmood Seifouri Mostafa Kohestani Parviz Amiri

In this paper, we investigate the parameters affecting Total Harmonic Distortion (THD) and Power Supply Rejection Ratio (PSRR) in PWM Class D Amplifiers (CDAs) on the basis of linear models with feedback. From our mathematical analysis, we show that the THD of a PWM Class D amplifier with feedback can be improved by increasing the gain of the integrator through adding another amplifier at the o...

Journal: :Frontiers in Psychology 2015

Journal: :Archives of Psychology 2019

Journal: :journal of electrical and computer engineering innovations 2014
parviz amiri mostafa kohestani mahmood seifouri

in this paper, we investigate the parameters affecting total harmonic distortion (thd) and power supply rejection ratio (psrr) in pwm class d amplifiers (cdas) on the basis of linear models with feedback. from our mathematical analysis, we show that the thd of a pwm class d amplifier with feedback can be improved by increasing the gain of the integrator through adding another amplifier at the o...

Journal: :iranian journal of radiology 0
solmaz valizadeh department of oral and maxillofacial radiology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran shahrzad shahbeig department of oral and maxillofacial radiology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran sudeh mohseni department of oral and maxillofacial radiology, school of dentistry, kerman university of medical sciences, kerman, iran fateme azimi department of oral and maxillofacial radiology, school of dentistry, guilan university of medical sciences, rasht, iran; codepartment of oral and maxillofacial radiology, school of dentistry, guilan university of medical sciences, p.o. box: 4194173774, rasht, iran. tel: +98-13-33486406, fax: +98-13-33486423 hooman bakhshandeh rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, iran

conclusion a significant relationship exists between the type of facial skeletal classification and the shape of the sella turcica; as in class iii patients, sella turcica bridge was reported with a higher frequency. also, sella turcica had a significantly higher length in these patients than in those with class i and class ii facial skeletal types. results sella turcica had normal morphology i...

Journal: :جنگل و فرآورده های چوب 0
زهرا نوری دانش آموخته مقطع دکتری-دانشگاه تهران محمود زبیری استاد- دانشکده منابع طبیعی-دانشگاه تهران جهانگیر فقهی دانشیار-دانشکده منابع طبیعی دانشگاه تهران محمدرضا مروی مهاجر استاد - دانشکده منابع طبیعی دانشگاه تهران

this study aims at analyzing spatial pattern and associations of fagus oriantalis lipsky in different vertical classes in intact beech forests. data collection was done in 25 ha plot in gorazbon district of educational and experimental forests of university of tehran. species and dbh of all trees with dbh > 7.5 cm were recorded. the location of each tree was determined using azimuth and distanc...

2004
Elliot B. Weininger

At the time of his death in January 2002, Pierre Bourdieu was perhaps the most prominent sociologist in the world (see Calhoun and Wacquant 2002). As the author of numerous classic works, he had become a necessary reference point in various “specialty” areas throughout the discipline (including education, culture, “theory,” and the sociology of knowledge); he had also achieved canonical status ...

2000
Jeroen K. Vermunt Jay Magidson

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