نتایج جستجو برای: water level

تعداد نتایج: 1582970  

Journal: :International Journal of Recent Technology and Applied Science 2020

Journal: :International Journal of Scientific Research in Computer Science, Engineering and Information Technology 2019

Journal: :Asian Journal of Applied Science and Technology 2021

Journal: :Journal of the Franklin Institute 1848

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1390

objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...

Journal: :environmental health engineering and management 0
javad ahmadi environmental engineering research center, faculty of chemical engineering, sahand university of technology, tabriz, iran davood kahforoushan environmental engineering research center, faculty of chemical engineering, sahand university of technology, tabriz, iran esmaeil fatehifar environmental engineering research center, faculty of chemical engineering, sahand university of technology, tabriz, iran khaled zoroufchi benis environmental engineering research center, faculty of chemical engineering, sahand university of technology, tabriz, iran manouchehr nadjafi laboratory of energy science and engineering, department of mechanical and process engineering, eth zurich, switzerland

background: urmia lake, the second largest hyper-saline lake of the world, has experienced lack of water and other environmental issues in recent years. now, there is a danger of the lake drying out, which will affect the region and its inhabitants. this study aimed to present a model which can relate the water level of the lake to effective factors. methods: parameters that influence water lev...

Journal: :journal of physical & theoretical chemistry 2014
maryam hosseini jalal javadi moghaddam

in this research, the physico-chemical water quality parameters and the effect of climate changes onwater quality is evaluated. during the observation period (5 months) physico-chemical parameterssuch as water temperature, turbidity, saturated oxygen, dissolved oxygen, ph, chlorophyll-a, salinity,conductivity, and concentration of total nitrogen (nutrient level) as main pollutant factor have be...

Journal: :international journal of environmental research 2012
c. tisseuil gh.r. roshan t. nasrabadi g.a. asadpour

the present research focuses on the changes of urmia lake level. for this purpose, two timescales have been considered. the trend changes of temperature, precipitation rate and quantitative values of climate type for the observational period from 1968 to 2011 (past scale) and from 2011 to 2100 (future scale) have been analyzed. general circulation model (gcm) is considered for simulating the va...

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