نتایج جستجو برای: circular crested weirs

تعداد نتایج: 69461  

2016
Soojun Kim Huiseong Noh Jaewon Jung Hung Soo Kim

The impacts of two factors on future regional-scale runoff were assessed: the external factor of climate change and the internal factor of a recently completed large-scale water resources project. A rainfall-runoff model was built (using the Soil and Water Assessment Tool, SWAT) for the Geum River, where three weirs were recently constructed along the main stream. RCP (Representative Concentrat...

2014
Dalal Al-Abdulrazzak Daniel Pauly

There has been a growing interest in the potential of Google Earth for scientific inquiries, and our previous paper (Al-Abdulrazzak and Pauly, 2014. Managing fisheries from space: Google Earth improves estimates of distant fish catches. ICES Journal of Marine Science, 71: 450–454) on weirs and their catch in the Persian Gulf is a case in point. Garibaldi et al. (2014. Comment on: “Managing fish...

Journal: :iran agricultural research 2008
t. honar m. javan

side weirs are flow diversion devices that are widely used in irrigation, drainage and urban sewage systems. the present study focuses on the investigation of the effect of oblique side weirs on the discharge coefficient of a side weir under subcritical flow condition in rectangular channels. in this study 106 laboratory tests were conducted and the results were analyzed to find out the influen...

ژورنال: علوم آب و خاک 2014
مظلوم شهرکی, صادق, هنر, تورج,

Cylindrical and semi-cylindrical weirs are used in water distribution systems for flow measurement in open channels and for control of water surface. Review of literature shows that cylindrical and semi-cylindrical weirs are not widely used in practice. Because of their low construction cost and simplicity, an investigation was done to study cylindrical and semi-cylindrical weirs in terms of th...

2012
Daniel T. Blumstein Matthew B. Petelle

Daniel T. Blumstein,a,b Matthew B. Petelle,a and Tina W. Weyc aDepartment of Ecology and Evolutionary Biology, University of California, 621 Young Drive South, Los Angeles, CA 90095–1606, USA, bThe Rocky Mountain Biological Laboratory, PO Box 519, Crested Butte, CO 81224, USA, and cDepartment of Environmental Science and Policy, University of California, Davis, One Shields Avenue, Davis, CA 956...

2012
Downie

The Gartcosh Industrial Site, North Lanarkshire is home to the largest known population of great crested newts (Triturus cristatus,) in Scotland. Economic development of the site required the translocation of the great crested newt and four other amphibian species from existing ponds to a purpose built reserve around the periphery. Monitoring the effectiveness of translocation as a mitigation m...

سید فرهاد موسوی, , علی‌رضا روشنی زرمهری, , منوچهر حیدرپور, ,

Because of slight variation of the static head due to discharge fluctuations, the labyrinth weirs are considered to be economical structures for flood control and water level regulation in irrigation networks, as compared to other devices. Labyrinth weirs are composed of folded sections observed as trapezoidal and triangular in plan view. In this study, rectangular and U-shaped labyrinth weirs ...

ژورنال: علوم آب و خاک 2006
سید فرهاد موسوی, , علی‌رضا روشنی زرمهری, , منوچهر حیدرپور, ,

Because of slight variation of the static head due to discharge fluctuations, the labyrinth weirs are considered to be economical structures for flood control and water level regulation in irrigation networks, as compared to other devices. Labyrinth weirs are composed of folded sections observed as trapezoidal and triangular in plan view. In this study, rectangular and U-shaped labyrinth weirs ...

Journal: :Jurnal arsip rekayasa sipil dan perencanaan 2023

The fulfillment of irrigation water needs must take into consideration the available resources. This is undertaken to avert conflicts that may arise among users. allocation can be accomplished through an analysis balance, juxtaposing discharge with required discharge. outcomes balance serve as a reference for allocation. Within Kedunglarangan Watershed (DAS), there exist six weirs, current mana...

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