Results 31 to 40 of about 501,373 (309)

Bed-load measurements on large, sand-bed rivers in the United States

open access: yesE3S 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

Pressure wave propagation in a shaken granular bed [PDF]

open access: yes, 2005
Pressure waves in a granular material travel through particle contact points and are primarily transmitted by the "force chains" that carry most of the load in a granular medium.
Brennen, Christopher E.   +1 more
core   +2 more sources

SUSPENDED AND BED LOAD OF GREAT ZAB [PDF]

open access: yesMesopotamia Journal of Agriculture, 2013
This study was conducted on the Great – Zab river at Eski Kalak monitoring station (3618 N , 4333- E , 280m A.S.1). The river of Great – Zab drains on area of 31258 Km2, this area is located between latitude 35.3 , 38.06 N and longitude 42.5 , 46.05
I. Anwer, S. Al- Hamrawi
doaj   +1 more source

Comparing the Efficiency of Sediment Rating Curve and ANN Models in Estimating River Bed-load [PDF]

open access: yesجغرافیا 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  

Sediment Bed-Load Transport: A Standardized Notation

open access: yesGeosciences, 2020
Morphodynamic processes on Earth are a result of sediment displacements by the flow of water or the action of wind. An essential part of sediment transport takes place with permanent or intermittent contact with the bed.
Ulrich Zanke, Aron Roland
doaj   +1 more source

Swimming in Granular Media

open access: yes, 2009
We study a simple model of periodic contraction and extension of large intruders in a granular bed to understand the mechanism for swimming in an otherwise solid media.
Dirk Kadau   +4 more
core   +1 more source

Bed load sediment transport and morphological evolution in a degrading uniform sediment channel under unsteady flow hydrographs [PDF]

open access: yes, 2019
Flume experiments are conducted to investigate the intrinsic links between time-varying bed load transport properties for uniform sediments and bed surface morphology under unsteady hydrograph flows, in the absence of upstream sediment supply.
Alan Cuthbertson   +8 more
core   +3 more sources

Sediment Transport Analysis of Sesayap River, Malinau District, North Kalimantan

open access: yesJournal of the Civil Engineering Forum, 2017
River could have a very important role in improving the economy of a country when it is correctly and properly utilized. Nevertheless, rivers in Indonesia also have various problems, i.e.
Hardhi Rafsanjani
doaj   +1 more source

Specificity of Four Laboratory Approaches for Cross-Sectional HIV Incidence Determination: Analysis of Samples from Adults with Known Nonrecent HIV Infection from Five African Countries [PDF]

open access: yes, 2014
Assays to determine cross-sectional HIV incidence misclassify some individuals with nonrecent HIV infection as recently infected, overestimating HIV incidence.
Baeten, Jared M.   +12 more
core   +1 more source

Modeling bed evolution using weakly coupled phase-resolving wave model and wave-averaged sediment transport model [PDF]

open access: yes, 2016
In this paper, we propose a model for the simulation of the bed evolution dynamics in coastal regions characterized by articulated morphologies.
Cannata, Giovanni   +3 more
core   +1 more source

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