نتایج جستجو برای: environmental parameters

تعداد نتایج: 928255  

ژورنال: مهندسی بهداشت حرفه ای 2015
امیدی, لیلا, جعفری, محمد جواد, خواجه‌وندی, علی اصغر, زارعی, اسماعیل, موسوی نجار کلا, سید علی, پور حسینقلی, محمد امین,

  Background­ and objectives : Research has consistently shown that air quality personal factors and work related factors were the most effective parameters for sick building syndrome. Several epidemiological studies have been carried out to show the prevalence of the sick building syndrome among the office workers but less attention has been paid to the relation of the sick building s...

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Journal: :مرتع و آبخیزداری 0
فضل الله احمدی میرقائد دانشجوی کارشناسی ارشد محیط زیست، دانشکدة منابع طبیعی، دانشگاه کردستان بابک سوری استادیار گروه محیط زیست، دانشکدة منابع طبیعی، دانشگاه کردستان مهتاب پیر باوقار استادیار گروه جنگل داری، دانشکدة منابع طبیعی، دانشگاه کردستان

rangelands are among the natural resources which have a considerable effect on environment and man’s life. iranian rangelands mostly have poor condition and exhausted by intensive over grazing, should be utilized according to their ecological capability and land suitability. the main objective of this study is to evaluate ecological capability and land suitability of gheshlagh dam’s watershed a...

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2002
Ertan Zencir Numan S. Dogan Ercument Arvas

Modeling and performance of on-chip spiral inductors is presented. Y-parameters are obtained from the measured S-parameters of the inductor fabricated in 0.35-μm SOI CMOS technology. Matlab is used to get the π-equivalent circuit model parameters at each frequency point. The SOI CMOS inductor shows better performance characteristics in terms of Q-factor and self-resonance frequency.

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1997
Gary P. Scavone Julius O. Smith

This paper demonstrates a digital waveguide implementation of a six-hole woodwind tonehole lattice, based on theory and measurements published by Keefe (1981). Woodwind tonehole transmission-matrix parameters are converted to traveling-wave scattering parameters suitable for digital waveguide implementation. Second-order digital filters are designed to approximate the reflection and transmissio...

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ژورنال: پژوهشنامه مدیریت حوزه آبخیز 2019
Esmali, Abazar, Ghafarzadeh, Omid, Golshan, Mohammad, Mostafazadeh, Raoof, Nasiri Khiavi, Ali,

Sustaining environmental flows to preserve biodiversity of aquatic plant and animal species, as well as constancy of water for human communities, is essential in many river ecosystems. On the other hand, hydrological changes caused by the dam and its related environmental problems have provoked many concerns for hydrologists, ecologists and policymakers. Therefore, the main aim of this research...

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1997
John Smith

In the last ten years, the use of gamma-ray spectrometry for geological mapping and mineral exploration has shown considerable growth. With this growth, standardized procedures have been developed for the calibration and processing of the airborne measurements so that they will be independent of survey parameters. This paper describes some of the new developments to convert airborne data to gro...

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Journal: :American Journal of Microbiological Research 2013

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Journal: :Journal of the Air & Waste Management Association 2009

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Journal: :MATEC Web of Conferences 2020

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Journal: :Metrology and instruments 2019

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