نتایج جستجو برای: climate control

تعداد نتایج: 1489325  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎this study investigated the effect of prior knowledge on the listening comprehension performance of fl learners. twenty students, male and female, drawn from the two intact groups of the senior and junior english language and literature majors were chosen as the participants of this study . the two groups were then randomly assigned into the experimental and control group. the experimental gr...

اروجلو, سمیرا, حاج آقازاده, محمد, فرخی, فاطمه, مروی میلان, حسین,

Introduction: Safety climate is the perception of personnel about the priority of safety in an organization. The objective of this study was to evaluate safety climate using Nordic questionnaire in a hospital. Material and Method: In this cross-sectional study, 92 nurses working in different wards of a hospital in uromia city, Iran, filled out the NOSACQ-50 questionnaire. The responses of nu...

2008
David Dunn James P. Crutchfield

Rapidly expanding insect populations, deforestation, and global climate change threaten to destabilize key planetary carbon pools, especially the Earth’s forests which link the micro-ecology of insect infestation to climate. To the extent mean temperature increases, insect populations accelerate deforestation. This alters climate via the loss of active carbon sequestration by live trees and inc...

2012
Leila Scannell Robert Gifford

To help mitigate the negative effects of climate change, citizens’ attitudes and behaviors must be better understood. However, little is known about which factors predict engagement with climate change, and which messaging strategies are most effective. A community sample of 324 residents from three regions in British Columbia read information either about a climate change impact relevant to th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده فیزیک 1387

چکیده این پایان نامه به بررسی اثر سیم پیچ مغناطیسی و کاوه یِ خوشه گر با بسامد رادیویی بر هاله و بیرونگراییِ باریکه هایِ پیوسته و خوشه ایِ ذرات باردار در شتابدهنده های خطیِ یونی، پروتونی با جریان بالا می پردازد و راه حل هایی برای بهینه نگهداشتن این کمیتها ارایه می دهد. بیرونگرایی یکی از کمیتهای اساسی باریکه هایِ ذرات باردار در شتابدهنده ها است که تاثیر قابل توجهی بر قیمت، هزینه و کاراییِ هر شتابدهند...

Journal: :Science 1999
Vinnikov Robock Stouffer Walsh Parkinson Cavalieri Mitchell Garrett Zakharov

Surface and satellite-based observations show a decrease in Northern Hemisphere sea ice extent during the past 46 years. A comparison of these trends to control and transient integrations (forced by observed greenhouse gases and tropospheric sulfate aerosols) from the Geophysical Fluid Dynamics Laboratory and Hadley Centre climate models reveals that the observed decrease in Northern Hemisphere...

2012

A series of investigations has been conducted in the 2009 Solar House located on the Missouri University of Science and Technology campus, to develop a climate-response control for a natural ventilation system. Firstly, the research investigated the relationship between indoor thermal comfort and climate. Predicted Mean Vote (PMV) was selected to evaluate the thermal comfort, which was calculat...

2005
H. Damon Matthews Michael Eby Andrew J. Weaver Barbara J. Hawkins

[1] Positive feedbacks between the terrestrial carbon cycle and climate represent an outstanding area of uncertainty in simulations of future climate change. Coupled climatecarbon cycle models have simulated widely divergent feedback magnitudes, and attempts to explain model differences have had only limited success. In this study, we demonstrate that the response of vegetation primary producti...

Journal: :International Journal of Computer Applications 2010

Journal: :Journal of occupational and environmental medicine 2014
Kristina Holmgren Jesper Löve Ann-Charlotte Mårdby Gunnel Hensing

OBJECTIVE To analyze if organizational climate and work commitment, demand and control, job strain, social support, and physical demands at work are associated with remain in work (RIW), that is, work attendance without sick leave over 15 days per year. METHODS This Swedish cross-sectional study was based on 4013 workers (aged 19 to 64 years), randomly selected from a general population. Data...

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