نتایج جستجو برای: during the last two decades

تعداد نتایج: 16455991  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی صنعتی کرمان - پژوهشکده برق و کامپیوتر 1390

a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...

Journal: :archives of trauma research 0
homayoun sadeghi-bazargani road traffic injury research center, department of statistics and epidemiology, tabriz university of medical sciences, tabriz, ir iran; department of public health sciences, karolinska institute, stockholm, swedenسازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (tabriz university of medical sciences)سازمان های دیگر: department of public health sciences, karolinska institute, stockholm, sweden erfan ayubi department of epidemiology, school of public health, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) saber azami-aghdash department of health services management, iranian center of excellence in health management, tabriz university of medical sciences, tabriz, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (tabriz university of medical sciences) leila abedi road traffic injury research center, department of statistics and epidemiology, tabriz university of medical sciences, tabriz, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (tabriz university of medical sciences) alireza zemestani road traffic injury research center, department of statistics and epidemiology, tabriz university of medical sciences, tabriz, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (tabriz university of medical sciences) louiz amanati road traffic injury research center, department of statistics and epidemiology, tabriz university of medical sciences, tabriz, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (tabriz university of medical sciences)

conclusions the findings of the current study will be beneficial in prevention of rtcs and its associated complications and hence will be vital for policy makers, health service managers and stakeholders. context despite considerable attention given to health statistics of road traffic crashes (rtcs), the epidemiological aspects of injuries resulting from rtcs are not fully understood in iran a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...

Journal: :acta medica iranica 0
hossein delshad endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, iran. ladan mehran endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, iran. fereidoun azizi endocrine research center, research institute for endocrine sciences, shahid beheshti university of medical sciences, tehran, iran.

iodine is a trace element in the human body, its only known function is the synthesis of thyroid hormones. effects of iodine deficiency, termed iodine deficiency disorders (idd), include endemic goiter, hypothyroidism, cretinism, decreased fertility rate, increased infant mortality and mental retardation. 2.2 billion people worldwide are at risk for idd. of these, 30-70% have goiter and 1-10% h...

Journal: :Agricultural and Forest Meteorology 2022

Quantifying the contributions of climate and vegetation to dynamics evapotranspiration (ET) water yield (i.e., precipitation minus ET) will help us better understand changes in budget. In this study, we identified variables (including precipitation, radiation, temperature, relative humidity), human-disturbed vegetation, natural trends annual ET over vegetated mainland China during 2001–2020, us...

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