نتایج جستجو برای: water systems

تعداد نتایج: 1683604  

Journal: :Journal of Contemporary Water Research & Education 2009

2013
Chiara M. Fontanazza Gabriele Freni Goffredo La Loggia Vincenza Notaro Valeria Puleo

In systems experiencing water scarcity and consequent intermittent supply, users often adopt private tanks that collect water during service periods and supply users when the service is not available. The tank may be fed by gravity or by private pumping stations depending on the network pressure level. Once water resources are collected, the tank can supply users by gravity if it is located on ...

Journal: :Linnaeus Eco-Tech 2019

Journal: :Water Resources Research 1982

Journal: :international journal of agricultural management and development 2014
mohammad reza bakhshi behnaz nejati mofid shateri

in recent years, farming section of south khorasan province faces different limitations such as increasing shortage of water resources and continuous reduction of weather showers.considering consecutive droughts and water crisis in agricultural plain of the province, it is necessary to use water resources optimally and increase productivity of water shortage input. comparison of water productiv...

Fatehizadeh, Ali, Hassanzadeh, Akbar, Zamani-Alavijeh, Fereshteh, Sadeghi Vasafi, Golamreza ,

Monitoring and supervising public water systems correctly by health workers in rural areas can reduce the prevalence of waterborne diseases. Through educational interventions in Shahreza city, we are aiming to improve health workers' knowledge and increase their ability to apply what they have learned about monitoring and supervising rural water supply systems. Materials and methods: As a trai...

Journal: :health scope 0
hosein kamani health promotion research center, zahedan university of medical sciences, ir iran; department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran mohammad malakootian environmental health research center and environmental health engineering department, school of public health, kerman university of medical sciences, ir iran mohammad hoseini department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran; department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran. tel: +9821-22909114, fax: +9821-88954914 jalil jaafari department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran

background the non-revenue water refers to a difference between the volume of water entering the system and billed authorized consumption. objectives the main purpose of this study is to determine the volume of non-revenue water in order to recognize the factors influencing water losses so that the information gathered can used in non-revenue water reduction management. materials and methods ka...

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