Academic literature on the topic 'Rotational Irrigation Delivery System'

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Journal articles on the topic "Rotational Irrigation Delivery System"

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Zardari, Noor ul Hassan, and Ian Cordery. "Estimating the effectiveness of a rotational irrigation delivery system: A case study from Pakistan." Irrigation and Drainage 59, no. 3 (March 13, 2009): 277–90. http://dx.doi.org/10.1002/ird.483.

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Bhadra, Aditi, Arnab Bandyopadhyay, Rajendra Singh, and Narendra S. Raghuwanshi. "An Alternative Rotational Delivery Schedule for Improved Performance of Reservoir-based Canal Irrigation System." Water Resources Management 24, no. 13 (March 12, 2010): 3679–700. http://dx.doi.org/10.1007/s11269-010-9626-8.

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Guler, Huseyin, Zhihong Zhang, Heping Zhu, Matthew Grieshop, and Mark A. Ledebuhr. "Spray Characteristics of Rotary Micro Sprinkler Nozzles Used in Orchard Pesticide Delivery." Transactions of the ASABE 63, no. 6 (2020): 1845–53. http://dx.doi.org/10.13031/trans.13445.

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HighlightsDroplet sizes were determined for rotary micro sprinkler nozzles used in solid set canopy delivery systems.An empirical multiple-variable model was developed to predict volume median diameters in spray patterns.Sprinkler nozzles produced medium to coarse droplets to minimize pesticide drift in orchards and trellised systems.Droplet size information can be used to select optimal nozzles for either irrigation or pesticide delivery systems.Abstract. Rotary micro sprinkler nozzles can be used for both irrigation and pesticide applications in orchard systems, but little to no information
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Kadbhane, Sharad J., and Vivek L. Manekar. "An experimental study on the grape orchard: Effects comparison of two irrigation systems." Journal of Water and Land Development 32, no. 1 (March 1, 2017): 41–51. http://dx.doi.org/10.1515/jwld-2017-0005.

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Abstract Table grape (Vitis vinifera cultivars) is a major cash crop in the Nashik district of India, which requires irrigation water throughout the year as per demand instantly. Canal irrigation is the adopted irrigation systems in the study area, but canal irrigation has got several serious disadvantages, such as mismatching rotation schedules and crop water demands, water allotment system and restrictions on the use of efficient irrigation methods. The storing the canal water in the farm pond instead of directly applying to the field using the free flooding method is alternate solution to o
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Qureshi, Sarfraz Khan, Zakir Hussain, and Zeb-Un-Nisa. "An Assessment of Warabandi (Irrigation Rotation) in Pakistan: A Preliminary Analysis." Pakistan Development Review 33, no. 4II (December 1, 1994): 845–55. http://dx.doi.org/10.30541/v33i4iipp.845-855.

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A significant feature of Pakistan's agriculture is that it is served by the Indus irrigation system, which is one of the largest contiguous irrigation systems in the world. The system comprises of the Indus River and its tributaries, three major storage reservoirs, 19 barrages/headworks, 43 canals, and 12 link canals and 43 canals covering about 43,000 chaks or village settlements. The total length of the canal system is about 40,000 miles with over 80,000 water courses, field channels ' and ditches running for another million miles. About 100--106 million acre feet (MAP) of surface irrigation
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Qureshi, Asad Sarwar, and Chris Perry. "Managing Water and Salt for Sustainable Agriculture in the Indus Basin of Pakistan." Sustainability 13, no. 9 (May 10, 2021): 5303. http://dx.doi.org/10.3390/su13095303.

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The Indus basin of Pakistan occupies about 16 million ha (Mha) of land. The Indus River and its tributaries are the primary sources of surface water. An estimated 122 km3 of surface water is diverted annually through an extensive canal system to irrigate this land. These surface water supplies are insufficient to meet the crop water requirements for the intensive cropping system practiced in the Indus basin. The shortfall in surface water is met by exploiting groundwater. Currently, about 62 km3 of groundwater is pumped annually by 1.36 million private and public tube wells. About 1.0 million
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Zubaidah, Zubaidah, Alfiansyah Yulianur, and Azmeri Azmeri. "KAJIAN PENINGKATAN INTENSITAS TANAM PADA D.I. BARO RAYA SUB D.I. BARO KANAN." Jurnal Teknik Sipil 1, no. 4 (February 28, 2018): 1049–58. http://dx.doi.org/10.24815/jts.v1i4.10065.

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Abstract: Baro Raya irrigation area is one of the technical irrigation, source of water for Baro Raya irrigation Channel is Krueng Baro that intercepted through a weir Filter Down (weir Tyrool), with a total area of 11.855 ha irrigation. The purpose of this study were: 1) to find out the large volume / dependable flow that available at the weir, 2) to find out the amount of crop water needs for each alternative, 3) to find out the extents optimum plant that can be irrigated by the available water, 4) by reviewing the dam water balance based on cropping planned, is expected to provide an overvi
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Walton, TJ, S. Heads, RJ Parkinson, and TRL Griffiths. "An Improvised Delivery System for Irrigation." Annals of The Royal College of Surgeons of England 90, no. 5 (July 2008): 429–30. http://dx.doi.org/10.1308/rcsann.2008.90.5.429b.

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Gates, Timothy K., Ahdulmohsen A. Alshaikh, Samir I. Ahmed, and David J. Molden. "Optimal Irrigation Delivery System Design under Uncertainty." Journal of Irrigation and Drainage Engineering 118, no. 3 (May 1992): 433–49. http://dx.doi.org/10.1061/(asce)0733-9437(1992)118:3(433).

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Pulido-Calvo, I., J. Roldán, R. López-Luque, and J. C. Gutiérrez-Estrada. "Water Delivery System Planning Considering Irrigation Simultaneity." Journal of Irrigation and Drainage Engineering 129, no. 4 (August 2003): 247–55. http://dx.doi.org/10.1061/(asce)0733-9437(2003)129:4(247).

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Dissertations / Theses on the topic "Rotational Irrigation Delivery System"

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Zardari, Noor-ul-Hassan Civil &amp Environmental Engineering Faculty of Engineering UNSW. "An improved multicriterion analysis approach to avoid subjectivity in irrigation water allocation decisions." Publisher:University of New South Wales. Civil & Environmental Engineering, 2008. http://handle.unsw.edu.au/1959.4/41300.

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The performance of the century-old irrigation system of Pakistan (i.e. warabandi) has been evaluated using socio-economic data gathered by the author in multiple farmers?? surveys (n=278) conducted in Indus Basin of Pakistan. In the surveyed regions, the warabandi system was performing poorly. In-built rigidity in water allocations was found as main reason behind its poor performance. The results from the farmers?? surveys also revealed that the objective of increasing irrigation water productivity would never be attained under the warabandi arrangements. Hence, a completely new concept that c
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Zaccaria, Daniele S. A. "A Methodology to Conduct Diagnostic Performance Assessment and Simulation of Deliveries in Large-Scale Pressurized Irrigation Systems." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/988.

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A methodology was developed to conduct diagnostic performance assessment and simulation of alternative delivery scenarios in pressurized irrigation distribution networks. It consists of three components, an agro-hydrologic model able to forecast peak water demand hydrographs, a hydraulic model with capability of simulating the network behavior under different flow configurations, and a set of performance indicators for conducting assessments of performance achievements relative to specified targets. As a preliminary work, the current delivery schedule of an existing pressurized irrigation netw
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Books on the topic "Rotational Irrigation Delivery System"

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Connellan, Geoff. Water Use Efficiency for Irrigated Turf and Landscape. CSIRO Publishing, 2013. http://dx.doi.org/10.1071/9780643106888.

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Achieving high water use efficiency in maintaining turf, trees and landscape areas is a core responsibility of open space managers. Water Use Efficiency for Irrigated Turf and Landscape provides a logical and scientifically sound approach to irrigation in urban areas in Australia. It is based on green space delivering defined outcomes using the principles of water sensitive urban design and irrigation efficiency.
 The book covers all stages of the water pathway – from the source to delivery into the plant root zone. Major topics include system planning, estimating water demand, water qual
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Book chapters on the topic "Rotational Irrigation Delivery System"

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Keller, Jack, and Ron D. Bliesner. "Main Delivery System Design." In Sprinkle and Trickle Irrigation, 201–20. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4757-1425-8_10.

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Zardari, Noorul Hassan, Sharif Shirazi, Irena Naubi, and Siti Mariam Akilah Mohd Yusoff. "Is Farmer’s Agricultural Income Dependent on Type of Irrigation Delivery System?" In ISFRAM 2014, 161–69. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-365-1_14.

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Crouch, Dora P. "Planning Water Quality: Potable and Subpotable Water at Selinus and Priene." In Water Management in Ancient Greek Cities. Oxford University Press, 1993. http://dx.doi.org/10.1093/oso/9780195072808.003.0022.

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Today when the rigors of an arid climate (Arabia) or other constraints on water resources press the limits of water supply, hydraulic engineers have to reconsider the nineteenth century answer of one quality of water for all uses. In places where population density far exceeds the supply of potable water—Hong Kong—or where the scanty spring water is not enough to support the massive tourist industry—Bermuda—(Deb, 1987, 222) there is no choice but to use subpotable or nonpotable water whenever feasible. Absolute scarcity of drinking-quality water is the strongest reason for water managers today to consider alternate procedures, but in some situations the quality not quantity of water is the issue. Heavy metals, long-lasting pesticides, or other carcinogens may require separation of the purest supply for drinking and cooking from the less pure supply for other uses, lest the water itself cause disease during a lifetime of use. Since potable water amounts to a small fraction of use in a modern city—6 percent or less (J. Thapa, personal communication)—alternative delivery systems for that small amount may be feasible, with the main systems delivering subpotable water for bathing, cleaning, watering lawns, and so on, and nonpotable water for industry or irrigation. It is easier to contemplate in theory these logical divisions than to make actual plans for altering the delivery system in metropolitan water districts. Political and economic realities restrict change in built-up areas unless the danger is severe, but in some new suburbs in Florida dual pipelines are laid for potable water inside the house and subpotable outside. Drinking bottled water is becoming more common. Many municipal water systems now supply partially purified (nonpotable) water to industry for cooling or other processes. Still, these new ideas have not been widely implemented to date. It is unexpected, then, to find that the ancient Greeks had just such a triple system of water supply and reuse. Each Greek city had both public fountains and springs supplying flowing water of the best quality, and private cisterns in houses and public buildings to supply still water of good quality, plus a drain system that led used water outside the city.
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Conference papers on the topic "Rotational Irrigation Delivery System"

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Sanger, Junaidy B., Heru Sukoco, and Satyanto K. Saptomo. "Reliable data delivery mechanism on irrigation monitoring system." In 2014 International Conference on Advanced Computer Science and Information Systems (ICACSIS). IEEE, 2014. http://dx.doi.org/10.1109/icacsis.2014.7065878.

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Zhu, Xingye, Xinkun Wang, and Junping Liu. "Numerical Simulation of a New Typed Sprinkler Irrigation System." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-24006.

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It has important significance and practical value for studying Sprinkler Irrigation System. In this study, numerical simulation was carried out. According to the selected materials and setting modes, both the pressure and the velocity distribution along the lateral were calculated out. Experimental study was carried out for this system to verify the correctness of numerical simulation. The following parameters were measured in the experiments: the flow-rate, rotational speed of the pump, and working pressure for the sprinklers. The numerical simulation results agreed to the experimental result
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Bharmal, Mohammad A., Syeda Q. Akbar, Sana Noor, Rabiya Farooq, and Nauman A. Zaffar. "Hydrokinetic powered irrigation network automation: A scalable architecture for the enablement of real-time automated decentralized control of the irrigation water delivery system in developing countries." In 2017 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2017. http://dx.doi.org/10.1109/ecce.2017.8096812.

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Dakuri, Srinuvasu, and Bhaskar Roy. "Design of a Free Turbine for Simulation of Flow in a Turbine-Annular-Diffuser-With-Struts Delivery System." In ASME 2009 Power Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/power2009-81153.

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A free turbine is intended to produce the effect of a rotating flow field to be fed into a strutted annular diffuser for simulating a 3D fluid mechanic interaction and effect. This turbine is driven by the flow from a flow driver fan, upstream of the turbine. As sufficient pressure is required for the diffuser air flow, the concept of maximum work generation by a turbine is bypassed in the design intent. An inlet guide vane is designed for the turbine such that the rotational speed of the turbine matches the design intended speed and also produces an axial exit flow (no swirl) at design condit
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Lee, Joshua, Arun Prabhakar, and Kathy Johnson. "Numerical Investigations Into the Oil Capture Efficiency of a Curve-Bladed Scoop System." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15257.

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Abstract In civil aero-engines, the shafts are supported by oil-lubricated bearings. These bearings require sufficient lubrication to provide cooling and ensure the reliability of the engine. In some engine configurations, it is not possible to supply oil to the bearings via the traditional direct jet injection method. An oil scoop delivery system is one of the solutions proposed to solve this problem by directing oil from a nozzle towards a rotating plurality of scoops that have internal conduits to direct the captured oil to an under-race location. The performance of an oil scoop can be quan
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Guerra, Davide, Marco Polastri, Mattia Battarra, Alessio Suman, Emiliano Mucchi, and Michele Pinelli. "A Design Procedure for Multistage External Gear Pumps." In BATH/ASME 2020 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/fpmc2020-2797.

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Abstract In this work, the authors present a robust and integrated procedure for the design of multi-stage gear pumps to be used in dry sump system applications. Based on the target delivery flow rate, rotational speed and fluid properties, the developed iterative method enables to directly obtain the geometrical features and the working parameters of the pump components, such as gearpair specifics, shaft and journal bearing dimensions, clearance values. The methodology is then applied to a case study in order to highlight its features and detail the achievable outcomes. Quality of the results
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Schroeder, Gunar, and Wieland Uffrecht. "A New Test Rig for Time-Resolved Pressure Measurements in Rotating Cavities With Pulsed Inflow." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22596.

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The improvement of the overall performance and efficiency of gas turbines, especially in the internal cooling air system is of general interest. This requires the reduction of pressure losses induced by vortices and secondary flow. The steady state effects are known from literature and experiments. But also pressure fluctuations and oscillations e.g. resonances have an impact on the efficiency of the internal cooling air system. These unsteady effects are only principally discussed in the literature. Experimental investigations of pressure fluctuations and oscillations in rotating cavities, wh
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Boughner, Kyle J., John E. Wentz, and Benton J. Garske. "Development and Validation of a Mathematical Model of Microfilm Formation in Atomization Cooling of Micromachining." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65302.

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Traditional flood cooling processes can cause problems in micromachining due to the collision force between the fluid stream and the tool being greater in magnitude than the cutting forces. The traditional processes produce insufficient cooling rates and are unable to effectively evacuate chips from the cutting zone. Atomization-based cooling addresses these issues through high evaporative cooling rates, low impact forces, and the use of a high velocity air stream to clear the cutting zone of chips. This paper presents a probabilistic model to determine the thickness of a microfilm forming on
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Shamekhi, Amir H., and Ali Gaffari. "An Improved Model for SI Engines." In ASME 2004 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/icef2004-0818.

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In this paper an improved mathematical model of spark ignition engines is presented. The model is derived based on a combination of thermodynamically relations and dynamical characteristics of engines. The geometrical parameters of the engine, valves and spark timing, air to fuel ratio, specific fuel consumption and engine operational conditions are considered during all four strokes of the engines. The engine is divided into some related subsystems namely; throttle body, intake manifold, fuel delivery system, intake and exhaust valves, E.G.R., torque production system, rotational dynamics and
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Javiya, Umesh, John Chew, Nick Hills, and Timothy Scanlon. "A Comparative Study of Cascade Vanes and Drilled Nozzle Designs for Pre-Swirl." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46006.

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Design of pre-swirl systems is important for the secondary air cooling system of gas turbine engines. In this paper, three pre-swirl nozzles, a cascade vane and two drilled nozzles are analysed and their performances are compared. The two drilled nozzles considered are a straight drilled nozzle and an aerodynamically designed nozzle. CFD analyses are presented for stand-alone and pre-swirl system 3D sector models at engine operating conditions near to engine maximum power condition rotational Reynolds number (Reφ) up to 4.6 ! 107. Nozzle performance is characterised by the nozzle discharge coe
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