نتایج جستجو برای: residual

تعداد نتایج: 91094  

Journal: :acta medica iranica 0
k sayadpour-zanjani department of pediatric cardiology, children’s medical center, school of medicine, teheran universit m aarabi-moghadam department of pediatric cardiology, shaheed rajayee heart center, school of medicine, iran universit

residual ventricular septal defects (vsd) are major complications after cardiac surgery. we studied the incidence of this complication, risk factors for its occurrence and short-term follow-up in 179 pediatric patients that underwent surgical closure of vsd from april 2003 until may 2004. all data were gathered retrospectively except measurements of shunt ratio. studied risk factors included ag...

Journal: :تحقیقات نظام سلامت 0
علی زنگی آبادی .استادیار، گروه جغرافیا، دانشکده علوم انسانی، دانشگاه اصفهان، اصفهان، ایران. رحیم عالی دانشجوی دکتری، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. آرزو زارعی کارشناس بهداشت محیط، مرکز بهداشت شماره یک، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. رضا قنبری عضو هیأت علمی، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی قزوین، قزوین، ایران.

background: due to the continuous use and also the individual’s different health conditions that use the service, swimming pools may be a suitable place to transfer different types of diseases. it has always been a serious concern from the health point of view. methods: in this descriptive study, the sampling was conducted as non- probable purposive. isfahan health center number 1 including 19 ...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
gholamreza mazruei graduate student, faculty of mechanical engineering, islamic azad university of khomeini shahr ali heidari assistant professor, young researchers and elite club, khomeinishahr branch, islamic azad university, khomeinishahr, iran

in this study, a new method for joining aluminum tubes in subsurface structures using steel converting and aluminum welding are presented and reviewed. but near the weld area is under high thermal cycle and will cause residual stresses in heat affected zone. therefore for assessment of proposed connection from the perspective of residual stress by using the finite element method welding of tube...

Journal: :international journal of advanced design and manufacturing technology 0
anant jitendrakumar sheth gujarat technological university, gujarat, india

with the prolonged use of domestic centrifugal pump, due to erosion, corrosion and an unbalance the sever vibration of the pump are resulted. an erratic sound coming out of pump makes the user uncomfortable. here, tuned vibration absorber (tva) is used as a vibration controlling device. it is designed to reduce the rms velocity below 20% of the circumferential speed, at which the impeller is ba...

Journal: :iranian journal of fuzzy systems 2014
ruey-chyn tsaur

in this paper, we propose a new residual analysis method using fourier series transform into fuzzy time series model for improving the forecasting performance. this hybrid model takes advantage of the high predictable power of fuzzy time series model and fourier series transform to fit the estimated residuals into frequency spectra, select the low-frequency terms, filter out high-frequency term...

Journal: :علوم و تکنولوژی پلیمر 0
سیامک مطهری

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Journal: :Journal of Nippon Medical School 1952

Journal: :Nature 1904

Journal: :Proceedings of the American Mathematical Society 1976

Journal: :Articles 2014

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