نتایج جستجو برای: irrigation system

تعداد نتایج: 2266406  

2013
S. Mohan G. Loganathan

The use of indicators for sustainability evaluation is an important step towards operationalization of the concepts of sustainability and sustainable development. Many literatures on framework for sustainable water management consider any one dimension of sustainability. In this paper, the sustainability of an irrigation system is assessed from economic and environmental dimension. An optimizat...

Journal: :dental research journal 0
ankur dua dua deepti dua dua

background: the purpose of this study was to compare the effi cacy of endovac irrigation system and side-vented closed ended needle (max-i probe) in removing smear layer from root canals at 1 mm and 3 mm from working length using protaper rotary instrumentation. materials and methods: a total of 50 freshly extracted maxillary central incisors were randomly divided into two groups after complete...

2000
M. S. Al-Jamal S. Ball T. W. Sammis

In the Mesilla Valley of southern New Mexico, furrow irrigation is the primary source of water for growing onions. As the demand for water increases, there will be increasing competition for this limited resource. Water management will become an essential practice used by farmers. Irrigation ef®ciency (IE) is an important factor into improving water management but so is economic return. Therefo...

2005
J. O. Paz C. W. Fraisse G. Hoogenboom L. U. Hatch A. Garcia y Garcia L. C. Guerra O. Uryasev J. W. Jones

Water demand for irrigation in the Southeast is expected to increase in the future. There is a need to combine climate information and risk analysis for peanut irrigation in the southeastern US. This paper describes a peanut irrigation decision support system which was developed to assist growers and to provide information on the levels of profitability of peanut production with and without irr...

Journal: :Mathematical and Computer Modelling 2011
Liyuan Xu Liping Chen Tian'en Chen Yunbing Gao

At present, irrigation decision-making systems applied to the field of agriculture were mostly aimed at a given area and specific crops. It was difficult to be applied in different areas and different crops. In this paper, a precision irrigation decision-making system has done something to solve this problem. The paper, on the one hand, has synthesized multi-areas and multi-crops in one decisio...

Journal: :IOP Conference Series: Earth and Environmental Science 2021

2016
Charles V. Privette Ahmad Khalilian William Bridges Stephen Katzberg Omar Torres Young J. Han Joe Mari Maja Xin Qiao C. V. Privette

Many agricultural fields across the country have a high degree of variability in soil type and water holding capacity that affects irrigation management. One way to overcome problems associated with the field variability for improving irrigation management is to utilize a site-specific irrigation system. This system applies water to match the needs of individual management zones within a field....

2002
N W MAZIBUKO P L GREENFIELD M A JOHNSTON

In surface irrigation, the soil serves as a medium for infiltration and conveying water from upstream to the downstream end of a field. In this study, infiltration properties of the Sibaya (Si) soil series (Glenrosa in the South African soil classification system) were determined by a volume balance method using a two-point approach technique. The purpose of the study was to examine the effect ...

Journal: :Brazilian dental journal 2010
Rodrigo Ricci Vivan Melina Vieira Bortolo Marco Antonio Hungaro Duarte Ivaldo Gomes de Moraes Mario Tanomaru-Filho Clovis Monteiro Bramante

A new device for irrigation, which presents hydrodynamic activation based on the pressure-suction technology, has recently been introduced to the market: the RinsEndo system. This study compared the efficacy of the RinsEndo system and conventional (manual-dynamic) irrigation in the removal of debris from the root canal walls, using scanning electron microscopy (SEM). Twenty mandibular premolars...

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