Results 51 to 60 of about 2,783 (246)

An Experimental and Numerical Comparison of Flow Hydraulic Parameters in Circular Crested Weir Using Flow3D

open access: yes, 2020
Circular crested weirs consist of a circular crested of upstream and downstream walls. These weirs are widely used in hydraulic engineering as water discharge structures and can be used to control water level in channels and tanks.
Farhad Ghazizadeh, M Azhdary Moghaddam
core  

Experimental Study on the Discharge Coefficient for Side Weir with Pressurized Flow in Circular Channel [PDF]

open access: yes, 2014
Urban inundations are caused by natural climate change and torrential rainfall during a short-time. As wide permeable areas go through the process of urbanization, the most of the storm water dose not infiltrate into the ground and total amount of storm ...
ZHANG, Hao   +3 more
core  

Hydraulic reconstruction of catastrophic drainage from the Late Glacial, Lake Fraser, British Columbia, Canada

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Glacial Lake Fraser, which formed in British Columbia against the retreating Cordilleran Ice Sheet, stored ~520 km3 of water before its near‐total drainage into the Salish Sea during an outburst flood event. Despite the impact of the outburst flood on sediment transport and landscape evolution in the Fraser River valley, its peak discharge and
Sean M. Loeffler   +3 more
wiley   +1 more source

Overflow Characteristic of Cylindrical Shape Crest Weirs Over Horizontal Bed

open access: yesTikrit Journal of Engineering Sciences, 2013
The most common types of weirs are the broad-crested weir, the sharp-crested weir, the circular crested weir and the ogee crested weir. Advantages of the cylindrical weir shape include the stable overflow pattern, the ease to pass floating debris, the ...
Emad4 AbdulGabbar
doaj  

Lepanus feehani Gunter & Weir 2019, new species

open access: yes, 2019
<i>Lepanus feehani</i> Gunter & Weir, new species <p>(Figs. 5C, 8C, 10C, 14)</p> <p> <b>Type series. Holotype:</b> ♂ “ 15.17S 145.13E 1km N of Rounded Hill QLD, 5-6 Oct. 1980 T. Weir ” [15&
Weir, Thomas A., Gunter, Nicole L.
core   +1 more source

Dietary Protein Reduction During Isocaloric Conditions Reduces Body Weight in Men With Overweight or Obesity

open access: yesObesity, EarlyView.
Protein restriction, while meeting minimum requirements, induced weight loss and increased FGF21 in men with obesity under isocaloric conditions, without caloric restriction. ABSTRACT Objective Dietary protein reduction increases plasma fibroblast growth factor 21 (FGF21) and energy requirements in lean men under eucaloric conditions.
Aslak E. Lyster   +10 more
wiley   +1 more source

Understanding the effects of patch‐burn grazing management on aboveground grassland invertebrate biodiversity

open access: yesOikos, EarlyView.
Landscape heterogeneity is widely recognized as a driver of biodiversity, yet its consequences for above‐ground, foliage‐dwelling insect communities under active grassland management remain underexplored. Patch‐burn grazing (PBG), which rotates fire across patches within a grazed landscape, is designed to promote spatial and temporal heterogeneity by ...
Zachary L. T. Bunch   +5 more
wiley   +1 more source

Effect of semi-circular baffle blocks on local scour downstream clear-overfall weirs

open access: yesAin Shams Engineering Journal, 2013
Local scour downstream hydraulic structures may result in damage or complete structural failure and loss of life and property. In this paper, an experimental study was conducted to predict the scour geometry downstream a Fayoum type weir and to minimize ...
Fahmy Salah Fahmy Abdelhaleem
doaj   +1 more source

Hydraulic performance of circular crested oblique weirs

open access: yesAin Shams Engineering Journal, 2020
Abstract The present study attempted to improve the discharge capacity of oblique weirs by rounding their crests. Twenty-four oblique weir models have been tested in which oblique angle (α), weir height (P) and crest diameter (D) were changed. Analysis of the results shows that the discharge (QOC) increases with the increase of effective head above ...
openaire   +1 more source

Catchment conversion to agriculture alters freshwater macroinvertebrate community responses to flow disturbance: results from a replicated in‐stream experiment

open access: yesOikos, EarlyView.
Anthropogenic stressors often co‐occur in ecosystems, but their combined impacts are rarely assessed using field experiments. Press disturbances particularly can reshape community dynamics, altering their capacity to withstand or recover from acute pulse disturbances by modifying response diversity.
Bridget E. White   +6 more
wiley   +1 more source

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