نتایج جستجو برای: ground and surface water

تعداد نتایج: 17044914  

Landfill leachates are potential threats for environmental degradation. This study was conducted to determine the leachate quality, to identify the dominant pollutants and to evaluate the leachate pollution potential of an active and closed dumping ground of an uncontrolled municipal solid waste landfill site in Kolkata, India using leachate pollution index. The results of the physico-chemical ...

ژورنال: علوم آب و خاک 2019

Droughts are natural events and could lead to declining surface water quality of regional basin. Understanding the complex impacts of drought may help authorities to monitor changes in different regional basin and to make appropriate decision on development of a river basin management plan. In this study 20 years annual precipitation time series from 1994-2013 from 7 synoptic weather stations l...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1388

since the 1960s the age effects on learning both first and second language have been explored by many linguists and applied linguists (e.g lennerberg, 1967; schachter, 1996; long, 1990) and the existence of critical period for language acquisition was found to be a common ground of all these studies. in spite of some common findings, some issues about the impacts of age on acquiring a second or...

Journal: :journal of structural engineering and geo-techniques 2012
s. m mir mohammad hosseini p malek mohammadi m kargar

the hydraulic pressure is one of the most important factors in the design of pressure intake tunnels. since the surrounding media cannot usually resist the high internal pressure of these tunnels, they are usually finished with an adequate lining mostly of reinforced concrete, which is an interaction problem between water, soil or rock and concrete lining. although reinforcing the concrete lini...

Journal: :فیزیک زمین و فضا 0
مهدی خاکی دانشجوی کارشناسی ارشد ژئودزی گروه مهندسی نقشه برداری، پردیس دانشکده های فنی دانشگاه تهران احسان فروتن محقق ژئودزی گروه ژئودزی و اطلاعات زمینی، دانشگاه بن محمد علی شریفی استادیار گروه مهندسی نقشه برداری، پردیس دانشکده های فنی دانشگاه تهران عبدالرضا صفری دانشیار گروه مهندسی نقشه برداری، پردیس دانشکده های فنی دانشگاه تهران

monitoring of water levels within the seas and oceans has been enhanced by application of satellite radar altimetry missions, compared to the traditional in-situ tide gauge measurements, due to their vast coverage and better spatial resolution. satellite radar altimetry, which is originally designed to measure global ocean surface height, has been applied to inland surface water hydrologic stud...

ژورنال: Hormozgan Medical Journal 2006
Alipour, V. , Dindarloo, K. , Farshidfar, GH.R. ,

Introduction: Natural water normally consists of mineral compounds, suspended solids and dissolved gases. Some of these components are necessary for human health, but if more than allowable limits, they will endanger the human health. In this research, important clinical parameters in drinking water of Bandar Abbas were evaluated to compare with the national standards. Methods: In this descrip...

2013
Vesna Furtula Charlene R. Jackson Erin Gwenn Farrell John B. Barrett Lari M. Hiott Patricia A. Chambers

Enterococcus spp. from two poultry farms and proximate surface and ground water sites in an area of intensive poultry production were tested for resistance to 16 clinical antibiotics. Resistance patterns were compared to assess trends and possible correlations for specific antimicrobials and levels of resistance. Enterococci were detected at all 12 surface water sites and three of 28 ground wat...

Amir Mohammadi , Ataollah Nadiri , Fereydoon Armanfar , Mohammad Mosaferi , Sepideh Nemati ,

Introduction: Arsenic contamination of  surface and groundwater has been categorizd among high profile  environmental  problems around the world. The matter is of most concern where unsafe water is used for drinking. Sahand region reservoir in northwest of Iran supplies water for drinking, industrial and agricultural purposes throught  irrigation  of 11000 hectares of l...

Journal: :civil engineering infrastructures journal 0
maryam rezaei school of engineering, kharazmi university, tehran, iran amir hamidi school of engineering, kharazmi university, tehran, iran abtin farshi homayoun rooz school of engineering, kharazmi university, tehran, iran

impact pile driving is a multi-component problem which is associated to multi-directional ground vibrations. at first, vibration is transferred from the hammer to the pile and then to the common interface of pile and soil. this is then transferred to the environment and has great impact on the adjacent structures, causing disturbance to residents and also damage to the buildings. it is of high ...

Journal: :iranian journal of public health 0
k.imel m.brazeh n. brazeh tehrani f.vaezi

there are 3700 wells in tehran city, of which 850 are deep wells. to determine tehran ground water quality, as a pretest we selected 102 wells by simple random sampling; water analyses were made according to the latest edition (1985) of the standard methods. comparisons of the obtained results with who standards show that only 0.98% of the samples go beyond the maximum desirable concentration o...

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