نتایج جستجو برای: stilling basins

تعداد نتایج: 12361  

ژورنال: طلوع بهداشت یزد 2016
سلطانی‌نژاد, یاسر, مصداقی نیا, علیرضا, ملکوتیان, محمد,

Introduction: Heavy metals are regarded as toxic stable elements in the environment that with the entry into water sources, finally it enters into the biological cycle of life and develops some adverse effects. Therefore, the present study aimed to determine the concentration of chromium and arsenic heavy metals in the river basins of Baft and Ravar dams. Methods: This descriptive cross-sect...

Journal: :روش های عددی در مهندسی (استقلال) 0
کاظم اسماعیلی و جلیل ابریشمی k. esmaili and j. abrishami

many studies have been conducted on the characteristics of hydraulic jumps over horizontal basins. on sloping basins, however, few such studies have been performed so that the issue requires more investigation. a significant number of studies has also been conducted on basins with positive slopes but comparatively few have been carried out on basins with negative slopes. this study was carried ...

Journal: :اکو هیدرولوژی 0
سارا آزادی کارشناس ارشد آبخیزداری، دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان سعید سلطانی دانشیار دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان

according to the importance of obtaining accurate informations on drought conditions and it risk management for water right of major wetlands in iran, in this study climatic coefficients of palmer index for 17 watersheds in country was calibrated and zonation and their range in basins containing international wetlands were investigated. results showed that in wet conditions, in basins such as c...

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Introduction Changes in land surface shape in active tectonic  zones result from interplay between tectonic forces and surface processes (Keller and Pinter, 1996; Keller et al., 1999). Salt Domes  are dome-shaped Geological structures whose central core is composed of salt. Their economic importance is due to the location of oil tanks in structures with salt domes and also the presence of sulf...

Journal: :Journal of the American Mosquito Control Association 2017
Roger S Nasci Amy B Runde Marlon Henry Justin E Harbison

Effectiveness in controlling mosquito larvae in stormwater catch basins in the North Shore Mosquito Abatement District (northeastern Cook County, IL) was determined for 2 extended-duration larvicides indicating up to 180 days of control on their labels (Natular™ XRT, FourStar® Briquet) and 3 larvicides indicating up to 30 days of control (Natular™ T30, Natular™ G30, and VectoLex® FG). Over the ...

Journal: :Atmospheric Research 2022

This study analyses quality controlled and homogenized near-surface wind speed series (SWS) at 87 meteorological stations distributed across Spain Portugal for 1961–2019. Multidecadal variability analysis of both mean gusts SWS confirms the first time in region cessation stilling (decline SWS) a possible weak reversal phenomenon (increase last decades, varying its onset from 1999 to 2018, depen...

Journal: :MEJ. Mansoura Engineering Journal 2021

Journal: :Geophysical Journal International 1981

2016
Justin E. Harbison Marlon Henry Christopher Xamplas JUSTIN E. HARBISON MARLON HENRY CHRISTOPHER XAMPLAS

In the northern suburbs of Chicago, stormwater catch basins are the primary source of vector mosquitoes targeted by the local mosquito abatement district, and therefore effective catch basin larvicides are needed. From June to September 2011, Natular XRT was applied at label rate to a cluster of 20 catch basins and compared to a cluster of 20 untreated basins all within a small 0.21 km area of ...

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