نتایج جستجو برای: oblique side weir

تعداد نتایج: 223263  

2012
Amitai Or Lilach Shtrasler Uri Gophna

Microbial ecosystems are often assumed to be relatively stable over short periods of time, but this assumption is seldom tested. An urban stream influenced by both flow and varying levels of anthropogenic influences is expected to have high temporal variability in microbial composition, and short-term ecological instability. Thus, we analyzed the bacterioplankton composition of a weir-fragmente...

2013
A. D. Ghare V. A. Mhaisalkar

Trapezoidal labyrinth weirs offer significant flow magnification for the available width of approach channel and that of the downstream chute. These types of weirs may find great utility and hence will have to be designed and provided for river linking projects. There are many factors such as head to crest height ratio, angle of side walls, vertical aspect ratio, apex width and approach and con...

Journal: :AJNR. American journal of neuroradiology 2015
H K Yang D S Lee J H Kim J-M Hwang

BACKGROUND AND PURPOSE Congenital superior oblique palsy is known to relate to trochlear nerve absence and a variable degree of superior oblique muscle hypoplasia. The purpose of this study was to determine whether superior oblique muscle volume predicts trochlear nerve absence in congenital superior oblique palsy. MATERIALS AND METHODS A retrospective study of high-resolution MR imaging to e...

Journal: :American journal of ophthalmology 2010
Joseph L Demer

PURPOSE To search for a new definition of muscle hypoplasia in congenital or idiopathic superior oblique muscle palsy. DESIGN Retrospective case-control study. METHODS Cross-sectional areas of the superior oblique and 4 rectus muscles near the eye globe-optic nerve junction were measured by an image analysis software on magnetic resonance images of 50 patients with congenital or idiopathic ...

Journal: :Journal of Hydrology and Hydromechanics 2015

2005
Josh R. Duncan BENDWAY WEIRS

INTRODUCTION The objective of this study is to provide a synthesis of the pertinent design criteria for submerged bendway weirs. The technical paper is an extension of previous research conducted by the National Center for Computational Hydroscience and Engineering (NCCHE) at the University of Mississippi on the hydrodynamic effects on flow characteristics and effectiveness of submerged bendway...

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: :Journal of Korea Water Resources Association 2010

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