Results 81 to 90 of about 363,183 (210)

Effect of roughness on sequent depth in hydraulic jumps over rough bed

open access: yesGrađevinar, 2019
Hydraulic jump is an important phenomenon in open channel flows such as rivers and spillways. Hydraulic jump is mainly used for kinetic energy dissipation at the downstream side of a spillway with the assist of baffle blocks.
Arpan Arunrao Deshmukh   +3 more
doaj   +1 more source

The Influence of Roughness and Pyrethroid Formulations on Bed Bug (Cimex lectularius L.) Resting Preferences

open access: yesInsects, 2015
Two-choice tests were conducted to examine the effect of surface roughness on the resting preference of bed bugs, Cimex lectularius L., on copper, basswood, and acrylic materials.
Benjamin A. Hottel   +2 more
doaj   +1 more source

Quantification of bed-load transport over dunes

open access: yesE3S Web of Conferences, 2018
There is disagreement in the literature as to whether a shear stress-based approach can be used to accurately predict sediment transport over dunes. This study aims to address this disagreement.
Lockwood Kenneth   +2 more
doaj   +1 more source

Characterization of subglacial landscapes by a two-parameter roughness index [PDF]

open access: yes, 2010
Peer reviewedPublisher ...
Bingham, Robert George   +7 more
core   +2 more sources

A Surprise Occurrence in Acoustic Bottom Backscatter Measurements Conducted in the Eastern Bering Sea [PDF]

open access: yes, 2007
Acoustic backscatter measurements at different frequencies were made in the eastern Bering Sea in August 2006 from the NOAA Ship Fairweather. The measurements consisted of approximately 2,250 nm of trackline acoustic backscatter data from a 100 kHz RESON
Fonseca, Luciano E., Huff, Lloyd C
core   +1 more source

Influence of Rough and Smooth Walls on Macroscale Flows in Tumblers

open access: yes, 2015
Walls in discrete element method simulations of granular flows are sometimes modeled as a closely packed monolayer of fixed particles, resulting in a rough wall rather than a geometrically smooth wall.
D'Ortona, Umberto   +3 more
core   +3 more sources

Physical modeling of unsteady turbulence in breaking tidal bores [PDF]

open access: yes, 2012
A tidal bore is an unsteady flow motion generated by the rapid water level rise at the river mouth during the early flood tide under macrotidal and appropriate bathymetric conditions. This paper presents a study that physically investigates the turbulent
Andersen V. M.   +17 more
core   +1 more source

Quantifying bed roughness beneath contemporary and palaeo-ice streams

open access: yesJournal of Glaciology, 2018
Bed roughness is an important control on ice-stream location and dynamics. The majority of previous bed roughness studies have been based on data derived from radio-echo sounding (RES) transects across Antarctica and Greenland.
FRANCESCA A.M. FALCINI   +3 more
doaj   +1 more source

Exploratory studies of open-channel flow over boundaries of laterally varying roughness [PDF]

open access: yes, 1961
An exploratory study was made of open-channel flow over beds consisting either entirely or partially of large granular roughness. Steady, uniform flow was established at various depths and velocities over two types of beds, one rough over the entire ...
Taylor, Robert Hugh
core   +1 more source

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