نتایج جستجو برای: usually without secure underground and surface water supply

تعداد نتایج: 17100190  

Journal: :international journal of agricultural management and development 2015
morteza tahamipour mohammad kavoosi kalashami amirhossein chizari

pricing policies play an important role in water demand management and its optimal allocation. determining proper water price leads to optimal allocation of water especially in agricultural consumptions. applying new subsidy targeting law in iran which insists on pricing water based on its supply cost, will effects considerably on water resource management in agriculture sector. so, in this stu...

2012
Abul Hasnat Milton Samar Kumar Hore Mohammad Zahid Hossain Mahfuzar Rahman

Ensuring access to safe drinking water by 2015 is a global commitment by the Millennium Development Goals (MDGs). In Bangladesh, significant achievements in providing safe water were made earlier by nationwide tubewell-installation programme. This achievement was overshadowed in 1993 by the presence of arsenic in underground water. A total of 6 million tubewells have been tested for arsenic sin...

Journal: :environmental health engineering and management 0
zabihollah yousefi department of environmental health engineering, school of public health, mazandaran university of medical sciences, sari, iran reza ali mohammadpour tahmtan department of biostatistics, school of public health, mazandaran university of medical sciences, sari, iran farzad kazemi department of environmental health engineering, school of public health, mazandaran university of medical sciences, sari, iran

background: in recent times, the decreasing groundwater reserves due to over-consumption of water resources and the unprecedented reduction of precipitation, during the past 1 decades, have resulted in a change in the volume and quality of water with time. the aim of this study was to determine the spatial and temporal variations of hardness and total dissolved solids in drinking water resource...

2010
Kara A. Teacoach James H. Rowland Alex C. Smith

Current regulations for fire suppression systems in underground coal mines to protect conveyor belt installations have been in place since the Coal Mine Health and Safety Act of 1969 was enacted. Over time, the coal conveyer equipment being used and ventilation conditions underground have changed significantly, particularly the width of the conveyor belts and the use of belt air at the face. Th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

one of the most commonly used techniques to reduce the corrosion rate of rebar in concrete is addition substances named corrosion inhibitors into the concrete. corrosion inhibitor is chemical compounds that were added to concrete to prevent corrosion of steel in concrete. sodium nitrate is a type of anodic inhibitors that this study investigatesthe effect of this inhibitor on the properties of ...

Journal: :Journal of water and health 2010
Gyula Dura Tamás Pándics Mihály Kádár Katalin Krisztalovics Zoltánné Kiss Judit Bodnár Agnes Asztalos Erzsébet Papp

Climate change may increase the incidence of waterborne diseases due to extreme rainfall events, and consequent microbiological contamination of the water source and supply. As a result of the complexity of the pathways from the surface to the consumer, it is difficult to detect an association between rainfall and human disease. The water supply of a Hungarian city, Miskolc (174,000 inhabitant)...

Journal: :اقتصاد و توسعه کشاورزی 0
فلسفی زاده فلسفی زاده صبوحی صابونی صبوحی صابونی

abstract in current study, an irrigation examination and acquisition of environmental water in kor-river fields, that is dominated from doroudzan dam to bakhtegan lake, was done by an integrated economy-environmental model. the model was considered by economic, hydrologic and agronomic components. in the economic component, an optimal harvesting of water was done using non-linear programming in...

2017
Shengwu Qin Zhongjun Ma Chuan-Dong Jiang Jun Lin Yiguo Xue Xinlei Shang Zhiqiang Li

Due to its unique sensitivity to hydrogen protons, magnetic resonance sounding (MRS) is the only geophysical method that directly detects water and can provide nondestructive information on subsurface aquifer properties. The relationship between the surface MRS signal and the location and characteristics of aquifers using large-coil (typically 50-150 m) sensors has been discussed based on forwa...

Amirhossein Chizari Mohammad Kavoosi Kalashami Morteza Tahamipour

Pricing policies play an important role in water demand management and its optimal allocation. Determining proper water price leads to optimal allocation of water especially in agricultural consumptions. Applying new subsidy targeting law in Iran which insists on pricing water based on its supply cost, will effects considerably on water resource management in agriculture sector. So, in this stu...

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