نتایج جستجو برای: long throated flumes
تعداد نتایج: 775552 فیلتر نتایج به سال:
This paper investigates the scaling of sediment transport by waves in the nearshore. Scaling of sediment is often needed in laboratory wave flumes where spatial dimensions are about a factor 10 smaller. Generally, for the physical model, normal sand is chosen with a relatively small diameter. Scaling relations are consulted to translate the spatial dimension and sediment flux to prototype value...
The article touches a physically interesting phenomena of half-frequency edge waves. Results look interesting and useful in the context of shore wave dynamics. A few points need to be expanded though. 1) It is worth presenting the raw data explicitly displaying the period doubling effect. ADV versus wave gauges? Difference between wave gauge reading? 2) The flume is narrow hence parameters of t...
The paper describes the range of scour types that may occur at bridge abutments, and addresses the extensive attendant difficulties confronting accurate estimation of abutment-scour depth. The difficulties, which include similitude aspects of laboratory experiments on scour at bridge abutments, complicate the development of reliable scour-estimation relationships. In a practical sense, the diff...
Modeling mass-transfer across the sediment-water interface is a significant issue in environmental hydraulics. In fact diffusional exchanges of solutes between the bed sediment and the overlying water column could greatly affect water quality. Particularly, diffusional flux of dissolved oxygen (DO) towards the bed sediments from the water column could be responsible for low and unacceptable lev...
Avian Chlamydia psittaci is an obligate intracellular zoonotic pathogen especially dispersed from birds, and it is known to cause pericarditis, pneumonia, lateral nasal adenitis, peritonitis, hepatitis, splenitis, and other diseases. Generalized infections result in fever, anorexia, lethargy, and diarrhea, depending on the chlamydial genotype and the affected bird species. Although many complet...
Abstract With climate change, streams and rivers are at increased risk of droughts flow intermittency. The full implications these conditions for fluvial carbon (C) processing stream-atmosphere CO 2 emissions not well understood. We performed a controlled drought experiment in outdoor hyporheic flumes. simulated small rain events that increase sediment moisture content, but do cause streamflow ...
In April 2013, a transect c. 1100 km long with 100 points arranged in 5 sections was designed northern Namibia between Ruacana Watefall (W) and Kongola (E) to study avian diversity relation gradual changes precipitation (c. 350 mm W c.600 E). total, 81 bird species were recorded all points, but particular section, the numbers low, ranging from 22 38 species. overall, most frequent numerous (dom...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید