نتایج جستجو برای: mianab irrigation network

تعداد نتایج: 713501  

2013
Shikha Arora Anant Kr. Jaiswal

An irrigation system is a hydraulic infrastructure that conveys water from the source to the consumers. The aim of the irrigation network design is to find the optimal pipe diameter for each pipe in the network for a given layout, demand loading conditions, and an operation policy. In this paper, we propose a model that uses Genetic Algorithm as an optimization scheme and link this algorithm wi...

Journal: :Annual Reviews in Control 2005
Iven M. Y. Mareels Erik Weyer Su Ki Ooi Michael Cantoni Yuping Li Girish N. Nair

In Australia gravity fed irrigation systems are critical infrastructure essential to agricultural production and export. By supplementing these large scale civil engineering systems with an appropriate information infrastructure, sensors, actuators and a communication network it is feasible to use systems engineering ideas to improve the exploitation of the irrigation system. This paper reports...

Sasanian’s imperial policy aimed to construct new towns, massive irrigation infrastructures, and land modification bydepopulating rural areas in order to carry out massive agriculture projects particularly in Khuzestan. Shushtar with itsancient relics presents a unique chance to investigate some of these development activities, mainly in terms of irrigation.Several chief irrigation organs have ...

Journal: :Future Internet 2017
Sotirios Kontogiannis George Kokkonis Soultana Ellinidou Stavros Valsamidis

Modern irrigation systems utilize sensors and actuators, interconnected together as a single entity. In such entities, A.I. algorithms are implemented, which are responsible for the irrigation process. In this paper, the authors present an irrigation Open Watering System (OWS) architecture that spatially clusters the irrigation process into autonomous irrigation sections. Authors’ OWS implement...

Journal: :Environmental monitoring and assessment 2006
J Causapé D Quílez R Aragüés

The review analysis of twenty two irrigation efficiency (IE) studies carried out in the Ebro River Basin shows that IE is low (average IE)(avg)(= 53%) in surface-irrigated areas with high-permeable and shallow soils inadequate for this irrigation system, high (IE)(avg)(= 79%) in surface-irrigated areas with appropriate soils for this system, and very high (IE)(avg)(= 94%) in modern, automated a...

ژورنال: علوم آب و خاک 2013
علی رحیمی‌خوب, , محمد امین مرادی, ,

Reference evapotranspiration (ET0) is a necessary parameter for calculating crop water requirements and irrigation scheduling. In this study, a method was presented as ET0 is estimated with NOAA satellite imagery in the irrigation network. In this method, a pixel from a set of pixels within the irrigation network was chosen with the highest vegetation index, and its surface temperature (Ts) wit...

2015
Do Guen Yoo Ho Min Lee Ali Sadollah Joong Hoon Kim

Water supply systems are mainly classified into branched and looped network systems. The main difference between these two systems is that, in a branched network system, the flow within each pipe is a known value, whereas in a looped network system, the flow in each pipe is considered an unknown value. Therefore, an analysis of a looped network system is a more complex task. This study aims to ...

2014
B. J. Dermody

The Romans were perhaps the most impressive exponents of water resource management in preindustrial times with irrigation and virtual water trade facilitating unprecedented urbanization and socioeconomic stability for hundreds of years in a region of highly variable climate. To understand Roman water resource management in response to urbanization and climate variability, a Virtual Water Networ...

Journal: :JNW 2013
Liai Gao Meng Zhang Geng Chen

In order to resolve the problems which include loss of soil fertility and waste of water resource in agriculture production, we design an intelligent irrigation system based on wireless sensor networks and fuzzy control. The system mainly consists of wireless sensor networks and the monitoring center. All of the nodes in Monitoring area use solar power, collect the information of soil moisture,...

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