doi:10.1002/ird.2296

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Publication Date

Thu Oct 04 2018

Journal Name

Irrigation And Drainage

Volume

68

DOI

10.1002/ird.2296

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Agricultural Irrigation Pricing: Review of Theories and Practices

water pricing

water markets

volumetric price

quotas

equity

sustainability

Shayma

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AbstractWater pricing and substitution of the costs of irrigation investment operation and maintenance have been controversial issues for a long time. The small charges for irrigation water are addressed, and additionally, the low level of farmers who pay the costs. In a few schemes, expense accumulation rates are close to zero, notwithstanding when water charges are well beneath the cost of operation and maintenance. Water prices are charged to farmers for two essential objectives. The first is to cover the operation and maintenance estimation with the goal that the investment is fiscally practical. Much of the time, costs will likewise need to incorporate a price for the cost of capital required to develop the scheme. This charge for capital is fundamental for future irrigation system investment. The second reason involves estimation to help farmers utilize less water per unit of yield or to deliver more prominent net economic returns per unit of water, or both.This paper summarizes irrigation water pricing methodologies and the related academic literature. Three water pricing methods are presented: volumetric, non‐volumetric and water market. For each methodology, potential impacts on water usage are postulated and supported by a summary of the academic literature. In addition, a summarized case study of irrigation water‐pricing practices and effects in Iraq is presented. © 2018 John Wiley & Sons, Ltd.

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Publication Date

Tue Jul 20 2021

Journal Name

Materials Science Forum

Red Laser Irradiation Effect on the Structural Properties of MawsoniteCu6Fe2SnS8 [CFTS] Thin Films Deposited via Semi-Computerized Spray Pyrolysis Technique

Bahaa T.

Mushtaq Talib

Nathera

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The existing investigation explains the consequence of irradiation of violet laser on the structure properties of MawsoniteCu₆Fe₂SnS₈ [CFTS] thin films. The film was equipped by the utilization of semi-computerized spray pyrolysis technique (SCSPT), it is the first time that this technique is used in the preparation and irradiation using a laser. when the received films were processed by continuous red laser (700 nm) with power (>1000mW) for different laser irradiation time using different number of times a laser scan (0, 6, 9, 12, 15 and 18 times) with total irradiation time (0,30,45,60,75,90 min) respectively at room temperature.. The XRD diffraction gave polycrysta

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Publication Date

Tue Jan 18 2022

Journal Name

Materials Science Forum

The Effect of Gamma Radiation on the Manufactured HgBa2Ca2Cu2.4Ag0.6O8+δ Compound

Gamma doses radiation

crystal size

strain

degree of crystallinity

Scherrer

crystallinity and Williamson equations.

zainab j

Balqees A.

Mohammed A.

Kareem A.

Auday H.

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In this article four samples of HgBa₂Ca₂Cu_2.4Ag_0.6O_8+δ were prepared and irradiated with different doses of gamma radiation 6, 8 and 10 Mrad. The effects of gamma irradiation on structure of HgBa₂Ca₂Cu_2.4Ag_0.6O_8+δ samples were characterized using X-ray diffraction. It was concluded that there effect on structure by gamma irradiation. Scherrer, crystallization, and Williamson equations were applied based on the X-ray diffraction diagram and for all gamma doses, to calculate crystal size, strain, and degree of crystallinity. I

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