Results 41 to 50 of about 3,969,409 (308)
Comparing the Efficiency of Sediment Rating Curve and ANN Models in Estimating River Bed-load [PDF]
جغرافیا و پایداری محیط, 2017 Evaluation and selection of the most appropriate methods for bed-load estimation is necessary because of the sampling difficulties and inaccurate estimations of the empirical equations.
Jamal Mosaffaie +2 more
doaj
Experimental study of bed load movement characteristics based on high speed video measurement
Shui kexue jinzhan, 2016 Bed load transport is closely connected with the turbulent structures of open-channel flow. Studies on the interaction between the movement of sediment particles and flow turbulence are of essential significance to both fluid mechanics and river dynamics.
WANG Hao +3 more
doaj +1 more source
Bed-load measurements on large, sand-bed rivers in the United States
E3S Web of Conferences, 2018 The movement of bed forms (sand dunes) in large sand-bed rivers is being used to determine the transport rate of bed load. The ISSDOTv2 (Integrated Section Surface Difference Over Time version 2) methodology uses time sequenced differences of measured ...
Abraham David +2 more
doaj +1 more source
Bed-Load Rate on Movable Beds with Vegetation
PROCEEDINGS OF HYDRAULIC ENGINEERING, 1997 This paper is concerned with bed-load rate on movable beds ac companied by vegetation. Firstly, some flume experiments are carried out with two kinds of plant-models which are cylindrical and curved to downstream, and branched and inclined also to downstream.
OKABE, Takeshi +2 more
openaire +2 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola +4 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, 2007 The explosive eruption of voluminous silicic magmas often produces widespread and massive deposits formed from pyroclastic density currents. While these punctuated events dramatically alter the landscape and have potential climate‐altering impact, our ...
Josef Dufek, George W. Bergantz
doaj +1 more source
, 2018 New data collection techniques offer numerical modelers the ability to gather and utilize high quality data sets with high spatial and temporal resolution.
L. Javernick, M. Redolfi, W. Bertoldi
semanticscholar +1 more source
Impact of the regularity of the sediment bed on bed‐load transport [PDF]
PAMM, 2016 AbstractThe present study analyzes the impact of regularly arranged sediment bed on the particle clustering by introducing an artificial non‐uniformity in the particle packing. Two simulations only differing in their sediment bed configuration are reported with the non‐uniform roughness created through a random vertical displacement of the fixed ...
Ramandeep Jain +2 more
openaire +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Bed load texture in an Alpine gravel bed river [PDF]
Water Resources Research, 2001 The spatial and temporal variations in bed load texture measured in a gravel bed river with a Helley‐Smith sampler are compared with its bed material texture. Most measurements were undertaken at low excess shear stress, with low bed load discharge over an armored bed.
Helmut M. Habersack, Jonathan B. Laronne
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