Results 301 to 310 of about 1,213,969 (339)

Suction Irrigator With Finger Control

Archives of Otolaryngology - Head and Neck Surgery, 1966
This modification of the House suction irrigator with finger control on the irrigation portion facilitates the use of suction and irrigation in one hand during mastoid and tympanoplastic surgery (Fig 1). There is no need for the nurse to clamp the suction rubber tubing. This avoids the delay in "on and off" action of irrigation.
openaire   +2 more sources

Modeling and Control of an Irrigation Station Process Using Heterogeneous Cuckoo Search Algorithm and Fuzzy Logic Controller

IEEE transactions on industry applications, 2019
Water is becoming a precious and very scarce resource in many countries due to an increasing demand in agricultural and industrial fields as well as population growth. Therefore, we have to optimize the water resources from hydraulic systems, in order to
Jaouher Chrouta, Wael Chakchouk, Abderrahmen Zaafouri, M. Jemli   +3 more
semanticscholar   +1 more source

Tensiometer-irrigation Control Valve

Applied Engineering in Agriculture, 1993
A simple, irrigation control valve was developed that mechanically links the soil water potential, expressed through negative pressure developed in a tensiometer, to the position of a piston that controls the flow of water through the valve. No external power was required.
null D. L. Peterson, null D. M. Glenn, null S. D. Wolford   +2 more
openaire   +1 more source

A Smart Irrigation System Using IoT and Fuzzy Logic Controller

Information Technology Trends, 2018
As the world's population grows, so does its demands for resources and efficient ways of managing production against the rapidly depleting resources.
Ban AlOmar, Azmi Alazzam
semanticscholar   +1 more source

Nonlinear Controller of Solar PV System for Water Pumping and Irrigation Applications

International Conference on Wireless Information Technology and Systems, 2019
A nonlinear controller of a solar PV system for water pumping and irrigation applications based on an induction machine (IM) and driven by centrifugal water pump is suggested. The approach is based on a first order sliding mode control.
M. Madark, A. Ba-Razzouk, E. Abdelmounim, M. E. Malah   +3 more
semanticscholar   +1 more source

Intelligent hydrogel on–off controller sensor for irrigation

Advanced Composites and Hybrid Materials, 2023
Xue-qing Zhan, Zhuo Ran, Hong-Yu Bao, Qin Ye, Han Chen, Qiang Fu, W. Ni, Jia-Min Xu, Ning Ma, Fang‐Chang Tsai   +9 more
semanticscholar   +1 more source

IRRIGATION CONTROL SYSTEM

2003
The invention relates to an irrigation control system, which comprises control electronics (13) housed in a control housing (4) and supplied with electrical energy by a solar cell system (11), and a valve system (2). According to the invention, the solar cell system is integrated in a housing surface (10) of the control housing (4) and the operational ...
GARDENA KRESS & KASTNER GMBH, LINDERMEIR WOLFGANG, WAIGEL HANS   +2 more
openaire   +1 more source

Irrigation planning: An optimal control approach

AIP Conference Proceedings, 2013
We aim to plan the water usage in the irrigation of a given farmland keeping, at same time, the field cultivation in a good state of preservation. This problem is modeled and tackled as an optimal control problem: minimize the water flow (control) so that the extent water amount in the soil (trajectory) fulfills the cultivation water requirements.
Lopes, Sofia Oliveira, Fontes, Fernando A. C. C., Pereira, Rui M. S., Gonçalves, A. Manuela, Machado, Gaspar J.   +4 more
openaire   +2 more sources

The Integrator Dual-Delay model for advanced controller design of the open canal irrigation systems with multiple offtakes

Computers and Electronics in Agriculture, 2023
Zheli Zhu, G. Guan, X. Tian, S. M. H. Shahdany, Kang Wang   +4 more
semanticscholar   +1 more source

Climate and Irrigation Control

2014
This chapter describes the climate and irrigation control problem inside a greenhouse and several control techniques widely used for such purposes, including illustrative results. As greenhouse crop production is influenced by inside climate, control strategies are important to maintain adequate conditions in spite of disturbances acting on the system.
Francisco Rodríguez, Manuel Berenguel, José Luis Guzmán, Armando Ramírez-Arias   +3 more
openaire   +1 more source