Results 21 to 30 of about 107,957 (205)

Shear stress measured on beds and wheelchairs

Journal of Rehabilitation Medicine, 1997
Local shear is understood to be one of the principal risk factors for the development of pressure sores. There is a need for a small deformable sensor that can measure the shear force between skin and deformable materials without disturbing the shear phenomenon. In the present study a new shear sensor is introduced with a contact area of 4.05 cm2.
Goossens, RHM, Snijders, Chris, Holscher, TG, Heerens, WChr, Holman, AE   +4 more
openaire   +3 more sources

Experimental investigation on bed shear stress distribution in the roughened compound channel

Applied Water Science, 2020
The roughness in the floodplains in a compound canal and its impact on hydraulic parameters such as the shear stress and their estimation are one of the problems that have attracted the attention of engineers.
Akram Abbaspour
doaj   +1 more source

Effect of Spatial Variations in Floodplain Vegetation on Bed Shear Stress Distribution [PDF]

长江科学院院报
[Objective] This study aims to investigate the effects of different vegetation arrangements (parallel and staggered) in the junction zone between channel and floodplain in urban rivers on the spatial distribution of bed shear stress, and to reveal how ...
REN Chun-ping, YANG Fan, ZHANG Yuan-yuan, WANG Hong-fei
doaj   +1 more source

The role of intratidal oscillations in sediment resuspension in a diurnal, partially mixed estuary [PDF]

, 2010
Using detailed observations of the mean and turbulent properties of flow, salinity and turbidity that spanned 2001/02, we examined the physical mechanisms underpinning sediment resuspension in the low-energy Swan River estuary, Western Australia. In this
Aubrey, Becker, Blanton, C. B. Pattiaratchi, Cooper, D. P. Hamilton, Deines, Dyer, Dyer, Etemad-Shahidi, Hamilton, Hamilton, Hodgkin, Hoitink, Hoitink, Imberger, J. M. O'Callaghan, Kim, Lemckert, Levasseur, Lorke, Mitchener, Nepf, O'Callaghan, O'Callaghan, Peters, Peters, Pugh, Pugh, Ranasinghe, Ridd, Simpson, Spencer, Stacey, Stevens, Stokes, Tedford, Tennekes, Uncles, van de Kreeke, van der Ham, van Maren, van Rijn, Weisberg, Whitehouse, Woodworth, Wright   +46 more
core   +2 more sources

Experimental Study of the Effect of Ripple Bedforms with Fine and Coarse Sediments on Bed Shear Stress

علوم آب و خاک, 2022
Bed shear stress is one of the most important hydraulic parameters to determine the amount of bed and suspended load and the bed and bank scouring in rivers. Bed shear stress depends on bedforms (ripples, dunes, and anti-dunes) in alluvial rivers.
M. Heydari, M. Bahrami Yarahmadi, M. Shafai Bejestan   +2 more
doaj  

Strain hardening by sediment transport

Physical Review Research, 2022
The critical fluid-shear stress for the onset of sediment transport, θ_{c}, varies with the history of applied shear. This effect has been primarily attributed to compaction; the role of shear jamming is less explored.
Fernando D. Cúñez, Erick M. Franklin, Morgane Houssais, Paulo Arratia, Douglas J. Jerolmack   +4 more
doaj   +1 more source

Entrainment and Turbulence Characteristics of Continuous-Flux Release Gravity Current over Rough Beds

Shanghai Jiaotong Daxue xuebao, 2021
In both the natural environment and hydraulic engineering, there widely exists the phenomenon of gravity current. In practical conditions, most beds are covered with gravel and sediment particles of different sizes, which can be regarded as rough bed ...
HAN Dongrui, YU Junyang, YUAN Yeping, HE Zhiguo, WANG Yuhang, LIN Yingdian   +5 more
doaj   +1 more source

Rheology of moist food powders as affected by moisture content [PDF]

, 2016
Dynamic testing to determine rheological characteristics of moist food powders (semolina, coarse wheat flour, potato starch) was carried out using a powder rheometer of a new construction. The unique feature of the rheometer is that scale of shearing was
Ali Hassanpour, Bradley, Chen, Cundall, Cundall, Fitzpatrick, Freeman, Ganesan, Ganesan, Harnby, Hassanpour, Horabik, I. Opaliński, Jenike, Klausner, Landillon, Langroudi, M. Chutkowski, Matuttis, Opaliński, Pasha, Pasha, Prescott, Radjaï, Rennie, Savage, Tardos, Tardos, Vogt, Wang, Weerasekara, Zou   +31 more
core   +1 more source

INTERFACIAL AND BED SHEAR STRESSES IN SALINE WEDGES

Coastal Engineering Proceedings, 1982
The shear stresses and the associated friction coefficients at the interface and at the bed of an arrested saline wedge have been studied experimentally together with the detailed flow structure. Interfacial stresses, evaluated from hot film anemometer measurements and actual velocity profiles, agree well with those based on the integration of the ...
Vassilios Dermissis, Emmanuel Partheniades   +1 more
openaire   +2 more sources

Numerical analysis of air effect on the powder flow dynamics in the FT4 Powder Rheometer [PDF]

, 2017
The FT4 powder rheometer of Freeman Technology is widely used nowadays in industry for characterisation of particle flow under dynamic conditions of shear strain rate.
Bharadwaj, F. Radjai, Freeman, Hare, J.Y. Delenne, Kinnunen, Langroudi, MiDi, Mojtaba Ghadiri, Nan, Osorio, S. Luding, S. Nezamabadi, Schwedes, Tardos, Vasilenko, Vincenzino Vivacqua, Wenguang Nan, Yueshe Wang   +18 more
core   +2 more sources