نتایج جستجو برای: environmental emission

تعداد نتایج: 538334  

2015
Ülo Niinemets Zhihong Sun

Plant isoprene emissions have been modelled assuming independent controls by light, temperature and atmospheric [CO2]. However, the isoprene emission rate is ultimately controlled by the pool size of its immediate substrate, dimethylallyl diphosphate (DMADP), and isoprene synthase activity, implying that the environmental controls might interact. In addition, acclimation to growth [CO2] can shi...

The integration of renewable wind and pumped storage with thermal power generation allows for dispatch of wind energy by generation companies (GENCOs) interested in participation in energy and ancillary services markets. However, to realize the maximum economic profit, optimal coordination and accounting for reduction in cost for environmental emission is necessary. The goal of this study is to...

Trade liberalization has impacts on the quality of the environment, i.e. on the emission of pollutant gases according to its size, composition and technology. On the other hand, trade liberalization is followed by international capital mobility intensification. Meanwhile according to the Pollution Haven hypothesis, transfer of pollutant industries starts from countries with tough environmental ...

2008
Gopal R. Patil Britt A. Holmén

Vehicle tailpipe emissions are major sources of air pollution and greenhouse gases. In addition to the ongoing efforts on emissions reduction, we believe there is a need to explore an innovating approach in which drivers routing decisions are influenced to minimize emissions and fuel consumption. In order to evaluate such transportation systems, we develop environmental traffic assignment model...

2007
P. Harley A. Guenther

Methanol is found throughout the troposphere, with average concentrations second only to methane among atmospheric hydrocarbons. Proposed global methanol budgets are highly uncertain, but all agree that at least 60% of the total source arises from the terrestrial biosphere and primary emissions from plants. However, the magnitude of these emissions is also highly uncertain, and the environmenta...

In recent years, fossil energy consumption has increased because of economic growth and this has led to carbon dioxide emissions and environmental crises.  Governments struggle to solve this problem by appropriate policies such as green or environmental tax policies. This policy is based on costs and can control pollution and increase renewable energy consumption as a substitute for fossil ener...

Journal: :پژوهش های حبوبات ایران 0
محمد قربانی محسن جمالی پور علیرضا کوچکی ناصر شاهنوشی

introduction earth's atmosphere plays an important role in preventing the temperature decrease. one of the principal factors of environmental pollution and the main source of earth's climate and biodiversity changes is greenhouse gas emissions from various sources, particularly agricultural sector. agriculture sector is considered as a major source of greenhouse gas sequestration, including me...

Journal: :محیط شناسی 0
الهه واثقی دانشجوی کارشناسی ارشد اقتصاد کشاورزی دانشکدة کشاورزی دانشگاه شیراز عبدالکریم اسماعیلی دانشیار گروه اقتصاد کشاورزی دانشکدة کشاورزی دانشگاه شیراز

the gaseous composition of the earth's atmosphere is changing at an accelerated rate because of the influence of human activities. different factors can cause increasing air contamination such as co2. understanding factors affecting atmosphere gaseous change is important for management and reducing air contaminants. the aim of this paper is to investigate factors affecting on co2 emission ...

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