نتایج جستجو برای: the impacts of global warming

تعداد نتایج: 22836352  

Journal: :مهندسی بیوسیستم ایران 0
مهدی خجسته پور دانشیار گروه مهندسی بیوسیستم، دانشگاه فردوسی مشهد علیرضا طاهری راد دانشجوی کارشناسی ارشد مکانیزاسیون، گروه مهندسی بیوسیستم، دانشگاه فردوسی مشهد امین نیکخواه دانشجوی کارشناسی ارشد مکانیزاسیون، گروه مهندسی بیوسیستم، دانشگاه فردوسی مشهد

the main objective of this study was to investigate the environmental impacts of cotton production in golestan province of iran using life cycle assessment methodology. the data used in the study were obtained from cotton farmers with face-to-face questionnaire method during 2011-2012. the questionnaires included total inputs of cotton production in the region and yield weight. environmental im...

2010
Ichiro Kurane

Global warming has various effects on human health. The main indirect effects are on infectious diseases. Although the effects on infectious diseases will be detected worldwide, the degree and types of the effect are different, depending on the location of the respective countries and socioeconomical situations. Among infectious diseases, water- and foodborne infectious diseases and vector-born...

Journal: :محیط شناسی 0
فرامرز خوش اخلاق استادیار جغرافیای طبیعی، دانشکدۀ جغرافیا، دانشگاه تهران محمد امین مرادی مقدم دانشجوی کارشناسی ارشد اقلیم شناسی، دانشکدۀ جغرافیا، دانشگاه تهران محمدامین حیدری دانشجوی دکتری اقلیم شناسی، دانشکدۀ جغرافیا، دانشگاه تهران شیرین صفایی دانشجوی کارشناسی ارشد اقلیم شناسی، دانشکدۀ جغرافیا، دانشگاه تهران

today, climate change is one of the most important scientific and even the political – social issues. the causes of climate change can be divided into natural and human - made. natural factors have the long-term performance and long history, such as the cycle of solar activity, dusts and gases of volcanic eruptions, geodetic and static agents and etc. human-made factors was mainly formed and ac...

2017
Fei Li Xiaoqiang Zhang

Research is needed by global change scientists on how global vegetation biomes respond to ongoing climate warming. To address this issue, we selected study sites with significant climate warming for diverse vegetation biomes, and used global gridded temperature and remote sensing data over the past 32 years (1982–2013). The results suggested that climate warming in areas above approximately 60◦...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1389

the purpose of this study is to investigate the relationships between teachers’ immediacy behaviors and iranian students’ willingness to talk in english classes. analysis of the results from willingness to talk scale represents a relatively high level of willingness to talk in english classrooms among iranian language learners. the total mean score of students’ willingness to talk was 66.3 ou...

Global warming and the meaningful relationship between temperature and precipitation changes over different areas of the earth with temperature increment of the earth, are considered as the most important patterns of this century’s climate changes. Today, there is debate over climate change and global temperatures increasing. Damaging effects of this phenomenon on the planet is one of the most ...

2009
Philip Martin FEARNSIDE

Global warming has potentially catastrophic impacts in Amazonia, while at the same time maintenance of the Amazon forest offers one of the most valuable and cost-effective options for mitigating climate change. We know that the El Niño phenomenon, caused by temperature oscillations of surface water in the Pacific, has serious impacts in Amazonia, causing droughts and forest fires (as in 1997-19...

Journal: :مهندسی عمران فردوسی 0
محمدرضا صبور مینا یکه لر مرتضی نیکروان

concrete is one of the most utilized construction materials in the world. nowadays, nano silicate usage due to its special property attracted considerable attention. on this basis, studying its environmental functions is an essential issue. accordingly, the behavior of normal concrete and the one with nano silicate were compared via taking advantage of life cycle assessment (lca) method in this...

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