Results 1 to 10 of about 140,482 (308)
Friction Coefficient for Center Pivot Systems
Journal of King Saud University: Engineering Sciences, 1995 An important objective of any center pivot irrigation system is to achieve a uniform distribution of water delivered through the sprinklers. In this study friction coefficients are developed for designing center pivot irrigation systems using two of the ...
Hussein M. Abo-Ghobar
doaj +2 more sources
Baseline characteristics of rhegmatogenous retinal detachments meeting the PIVOT trial criteria in an eye referral center in Colombia: case series. [PDF]
Int J Retina VitreousObjective This study aims to characterize the baseline profile and clinical outcomes of pneumatic retinopexy (PR) in patients fulfilling the Pneumatic Retinopexy versus Vitrectomy for the Management of Primary Rhegmatogenous Retinal Detachment Outcomes ...
Salgado-Gómez D +3 more
europepmc +2 more sources
Evaluation of center-pivot sprinkler systems
California Agriculture, 1986 Some causes of nonuniformity are ...
B Hanson, D Lancaster
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Cuidados na instalação de um center-pivot [PDF]
, 2005 A aquisição e instalação no terreno de um qualquer sistema de rega deve sempre cumprir determinadas normas e exigências, de modo a prevenir problemas futuros e permitir o cumprimento de boas práticas agrícolas. O sistema de rega deverá dar garantia de um funcionamento adequado, considerando as características do clima, do terreno (solos-topografia), da
Silva, Luis Leopoldo +3 more
openaire +3 more sources
PVANET-HOUGH: DETECTION AND LOCATION OF CENTER PIVOT IRRIGATION SYSTEMS FROM SENTINEL-2 IMAGES [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Irrigation systems play an important role in agriculture. As being labor-saving and water consumption efficient, center pivot irrigation systems are popular in many countries.
J. W. Tang +4 more
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Agronomy, 2021 The center pivot irrigation system is a type of irrigation technology used to apply water effectively and uniformly over a wide variety of areas and topographies. These irrigation systems’ uniformity of water application greatly affects water use, energy
Hussein Al-Ghobari, Ahmed Z. Dewidar
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Climate Services, 2023 Microclimate and physiological changes are consequences of the evaporation of water lost during and after irrigation and these losses depend on the application rates and irrigation duration under the center pivot irrigation system.
Chala Wakjira
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ENERGY EFFICIENCY OF A CENTER PIVOT IRRIGATION SYSTEM [PDF]
Engenharia Agrícola, 2018 This study aimed to evaluate the energy efficiency of a center pivot irrigation system operating in a terrain of variable topography. Values of Pumping Energy Efficiency (PEE), Supply Energy Efficiency (SEE), Global Energy Efficiency (GEE) and Specific ...
Brenon D. S. Barbosa +4 more
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Energy consumption reduction of a center-pivot with the use of a variable-frequency drive
Revista Brasileira de Engenharia de Biossistemas, 2022 Pressure demand of a center-pivot can be controlled by variable frequency drives during irrigation system operations, leading to a rational use of electrical energy. However, numerous studies encountered problems due to the lack of field data to perform
Isabela Alvarenga Almeida +5 more
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Soil health within transitions from irrigation to limited irrigation and dryland management
Agricultural & Environmental Letters, 2022 The decline in groundwater supply in the Texas High Plains is forcing some growers to convert center‐pivot irrigated cropland to dryland production. Transitioning toward reduced water input can lead to declines in soil health.
Krishna B. Bhandari +3 more
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