نتایج جستجو برای: irrigation networks

تعداد نتایج: 469567  

In current situations, quantitative and qualitative reduction of water resources has become global crisis. This subject has created many problems in Iran’s agriculture sector. In this research, effective factors on participation rate of farmers in Hashtgerd regarding optimum Utilization of irrigation networks are studied. The statistical population included all 1500 farmers in Hashtgerd city. A...

Aliasghar Montazar Mahmoud Mashaal Mina Sadat Seyedjavad

Measuring sensitivity of hydraulic structures is considered as an approach for evaluation of water projects performance, due to lower distribution efficiency in Irrigation and Drainage project schemes. Sensitivity analysis approach for irrigation structures is one of flow analysis methods which are developed in recent years in order to measure the behavior of flow in hydraulic structures in an ...

2007
Rami Abielmona

Sensor networks are novel data routing and processing structures that allow for the emergence of data-centric applications, such as the controlled irrigation of agricultural fields and the continuous monitoring of an elderly person’s health. Numerous challenges exist including sensor coverage, power consumption, interoperability, security, integrated display and user bandwidth. In this white pa...

Journal: :کشاورزی (منتشر نمی شود) 0
حمیدرضا حجازی کارشناس ارشد مهندسی تاسیسات آبیاری، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج صلاح کوچک زاده دانشیار، گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی ومنابع طبیعی، دانشگاه تهران، کرج

a design discharge is an important issue in the design process of pressurized irrigation networks. underestimating the desing discharge affect, the required pressure and offtake discharge, increase the cost of the network. because of the lack of a standard and reliable method for this propuse, usually different approches are used by designers. the network fails to provide the required flow rate...

Journal: :journal of hydraulic structures 2014
mina sadat seyedjavad mahmoud mashaal aliasghar montazar

measuring sensitivity of hydraulic structures is considered as an approach for evaluation of water projects performance, due to lower distribution efficiency in irrigation and drainage project schemes. sensitivity analysis approach for irrigation structures is one of flow analysis methods which are developed in recent years in order to measure the behavior of flow in hydraulic structures in an ...

2011
I. Mareels Su Ki Ooi David Aughton Tony Oakes

Total Channel ControlTM is a patented automation design for large scale open canal irrigation networks that manages water distribution within capacity constraints to achieve on-demand water delivery whilst maximizing water distribution. Here it is shown that this decentralized and distributed control implementation realizes near globally optimal performance. Furthermore, the performance enhance...

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