نتایج جستجو برای: and human environment such as air pollution accordingly
تعداد نتایج: 17659078 فیلتر نتایج به سال:
introduction the current environmental challenges one of the main concern of is humanity. the issue of when more added concern has been associated with complications. research suggests the environmental challenges are rooted in factors in the different levels of global, regional and local levels are considered. in this case although many studies have been in different aspects of urban environme...
For a few decades has proposed sustainable developing in different sciences and professions including architecture and urbanization and its origins is in environmental crises and also excessive use of fossilized energies in the world. problems such as global warming, increasingly developing of green house gases in atmosphere that its origin is in global warming , air and soil pollution, an...
Environmental pollution consists of different types of pollutants in air, soil, and water. Due to the fact that plants can respond to environmental pollution, they can be used as bio-indicators for environmental monitoring. Air pollution in areas with oil and gas refineries nearby is an important problem. This study aims to survey the effects of gas refinery air pollutants on Conocarpus erectus...
Air pollution is the major concern and challenge of Tehran urban areas’ management. Various rules, regulation, and laws had been codifiesd on this matter. In present research, the enforcement of laws and regulation concerning air pollution in the field of land-use and transportation is being addressed. The purpose of this article is to suggest an applicable (applied) framework embracing a descr...
a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...
this thesis attempts to measure learning styles, self efficacy and intrinsic motivation as predictors of iranian ielts reading comprehension. in order to address this issue, a quantitative study was conducted on some randomly selected intact students at ferdowsi university. these two groups were assigned as they were undergraduate (ba=91) and graduate (ma =74) students; they were all aged betwe...
New energy technologies, along with the benefits, are associated with challenges and Difficulties. Geothermal energy as one of the renewable energies is a clean and sustainable energy source, yet its development still has some impact on the environment such as: greenhouse gas emissions, noise pollution, surface and groundwater contamination, subsidence, and seismicity. This paper provides a bri...
in one pole of the continuum of language learning, theoreticians and practitioners traditionally consider english as english as a second language or english as a foreign language. however, in the other pole of this continuum where english is thought of as the most effective tool for international communication, it is referred to as a lingua franca. those who favor an approach to english growing...
monumental changes occurring on a daily basis have altered the world into a global village of expanding technology and shrinking geography in which preparing language learners for intercultural communication seems to be a sine qua non for modern language education. employing a cross-sectional design in its first phase, this study investigated the intercultural sensitivity and language proficien...
For a few decades has proposed sustainable developing in different sciences and professions including architecture and urbanization and its origins is in environmental crises and also excessive use of fossilized energies in the world. problems such as global warming, increasingly developing of green house gases in atmosphere that its origin is in global warming , air and soil pollution, an...
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