نتایج جستجو برای: into the wetland

تعداد نتایج: 16121665  

M. Soleimani, M.A. Hajabbasi

Soil and sediments of the estuaries and wetlands in Northwest of Persian Gulf are recently polluted with different heavy metals because of municipal and industrial wastewaters. Therefore an urgent soil cleaning up and remediation program is vital in this region. Consequently, this study was initiated to screen two plant species (Festuca arundinacea and Cynodon dactylon) for hyperaccumulation of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

Journal: :caspian journal of environmental sciences 2011
j. imanpour namin

levels of contaminants in fish are of particular interest because of the potential risk to humans consuming them. this paper examines the levels of cadmium, lead, zinc and copper in liver and muscle tissue of esox lucius and in sediments from the anzali international wetland in iran. the wetland is a nursery and feeding habitat for fish species both from the lagoon and the caspian sea, which ar...

A Salmanmahiny H. Mirkarimi N.A. Hasan Abassi S Sefidian,

Wetlands as water resources have a special place in the semi-arid plateau of Iran and boundary determination is necessary for their effective conservation and conflict resolution among stakeholders that are dependent on these resources. Determination of the wetland boundaries should be commensurate with environmental features affecting on it which normally extend beyond water extent. Ecological...

In this research, the evaluation of possible effects of land-use change on water quality in Shadegan wetland has been provided with the help of remote sensing data. The purpose of this research was to evaluate and compare user variations in 2000 and 2015 using Landsat satellite imagery (with ETM and OLI sensors) from the study area and processing them in the ERDAS software environment using the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1391

abstract: postmethod is a newly developed pedagogy which as an alternative to method rejects the notion of good or bad methods and the concept of best method that can be generalized and appropriate for all contexts. instead, it treats each context as unique and one of a kind which cant be compared with other cases. this study is a postmethod-oriented one which investigates whether and how far t...

Journal: :تحقیقات نظام سلامت 0
حمیدرضا تشیعی رئیس مرکز تحقیقات و خودکفایی صنعتی، شرکت مهندسی آب و فاضلاب کشور مختار مهدوی فوق لیسانس مهندسی بهداشت محیط، کارشناس مرکز تحقیقات و خودکفایی صنعتی، شرکت مهندسی آب و فاضلاب کشور فرهام کرکانی فوق لیسانس مهندسی بهداشت محیط، مدیر پدافند غیرعامل شرکت مهندسی آب و فاضلاب کشور سید وحید غلمانی کارشناس عمران ، مسئول تصفیه خانه فاضلاب شهر یزد حسین عطائی فر سرپرست دفتر تحقیقات و خودکفایی صنعتی شرکت مهندسی آب و فاضلاب کشور

background: selection of different wastewater treatment methods depends on the kind of wastewater, geographical position of the community, quantity and quality of wastewater and effluent, technology and finance. natural wastewater treatment methods are simple, cheap and acceptable for developing countries specially small and remote countries and wetland is one of these methods. wetlands include...

F Farokhian K Hemadi M Kamali,

In the recent years,theprojects developed the studies onwater resources and agriculture, developmentof human societies, the phenomenon of climate change and drought greatest environmental impact,socio-economic and industry in developing and even under developing countries. Results of theseissues showed the effects of mortality and immigration, human and animal species, environmentaldegradation,...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

fuzzy logic has been developed over the past three decades into a widely applied techinque in classification and control engineering. today fuzzy logic control is one of the most important applications of fuzzy set theory and specially fuzzy logic. there are two general approachs for using of fuzzy control, software and hardware. integrated circuits as a solution for hardware realization are us...

Journal: :تحقیقات نظام سلامت 0
عباس اکبرزاده دکترای تخصصی، مؤسسه تحقیقات آب وزارت نیرو، تهران، ایران. محسن اربابی استادیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهرکرد، شهرکرد، ایران.

background: in the recent years, eutrophication has become a serious challenge for many of the water ecosystems. it has affected the environmental and economical aspects of the anzali wetland, which is known as one of the significant ecosystem. due to the increase of the nutrient loadings from the industrial, agricultural and human activities, the wetland’s health is faced many serious problems...

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