Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Nick Barton"'
Publikováno v:
International Journal of Mining Science and Technology, Vol 34, Iss 4, Pp 461-477 (2024)
Accurate measurement of the evolution of rock joint void geometry is essential for comprehending the distribution characteristics of asperities responsible for shear and seepage behaviors. However, existing techniques often require specialized equipm
Externí odkaz:
https://doaj.org/article/31a1f3fe780449899110d664bf45b68f
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 12, Pp 3352-3379 (2023)
The joint roughness coefficient (JRC), introduced in Barton (1973) represented a new method in rock mechanics and rock engineering to deal with problems related to joint roughness and shear strength estimation. It has the advantages of its simple for
Externí odkaz:
https://doaj.org/article/44b608ad8f684c7e84a618f4191b8a6f
Autor:
Nick Barton, Eda Quadros
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 11, Iss 3, Pp 576-597 (2019)
Pre-grouting ahead of tunnels has three main functions: to control water inflow into the tunnel, to limit groundwater drawdown above the tunnel, and to make tunnelling progress more predictable since rock mass quality is effectively improved. It help
Externí odkaz:
https://doaj.org/article/6810448a36e247dba13634152b2c0ca4
Autor:
Martin J. Scott, Amanda Jowett, Martin Orecchia, Peter Ertl, Larissa Ouro-Gnao, Julia Ticehurst, David Gower, John Yates, Katie Poulton, Carol Harris, Michael J. Mullin, Kathrine J. Smith, Alan P. Lewis, Nick Barton, Michael L. Washburn, Ruud de Wildt
Publikováno v:
mAbs, Vol 12, Iss 1 (2020)
Complex cellular targets such as G protein-coupled receptors (GPCRs), ion channels, and other multi-transmembrane proteins represent a significant challenge for therapeutic antibody discovery, primarily because of poor stability of the target protein
Externí odkaz:
https://doaj.org/article/9568bbb2030349d68273fb8c36b14f92
Publikováno v:
PLoS ONE, Vol 15, Iss 3, p e0230642 (2020)
Evidence for specialised bone tools has recently been reported for the Middle Stone Age of North Africa [one], which complements similar finds of slightly younger age in South Africa [two, three]. However, until now scant reference has been made to l
Externí odkaz:
https://doaj.org/article/c988bc1d11204ff8a02bd442f9942f3f
Nonlinear shear behavior of rock joints using a linearized implementation of the Barton–Bandis model
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 9, Iss 4, Pp 671-682 (2017)
Experiments on rock joint behaviors have shown that joint surface roughness is mobilized under shearing, inducing dilation and resulting in nonlinear joint shear strength and shear stress vs. shear displacement behaviors. The Barton–Bandis (BB)
Externí odkaz:
https://doaj.org/article/0c1436cae1c041fdb55b59a5e3c1932a
Autor:
Nick Barton, Baotang Shen
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 9, Iss 2, Pp 210-225 (2017)
The authors investigate the failure modes surrounding over-stressed tunnels in rock. Three lines of investigation are employed: failure in over-stressed three-dimensional (3D) models of tunnels bored under 3D stress, failure modes in two-dimensional
Externí odkaz:
https://doaj.org/article/331bb06bfb4d40a8bb6918136cc9c77f
Publikováno v:
eLife, Vol 8 (2019)
Great care is needed when interpreting claims about the genetic basis of human variation based on data from genome-wide association studies.
Externí odkaz:
https://doaj.org/article/9bce830165524663906d42d9ccea195b
Autor:
Abdeljalil Bouzouggar, Louise T Humphrey, Nick Barton, Simon A Parfitt, Laine Clark Balzan, Jean-Luc Schwenninger, Mohammed Abdeljalil El Hajraoui, Roland Nespoulet, Silvia M Bello
Publikováno v:
PLoS ONE, Vol 13, Iss 10, p e0202021 (2018)
The question of cognitive complexity in early Homo sapiens in North Africa is intimately tied to the emergence of the Aterian culture (~145 ka). One of the diagnostic indicators of cognitive complexity is the presence of specialised bone tools, howev
Externí odkaz:
https://doaj.org/article/a6f15a084dfe4c5f909cd2d421c52ce5
Publikováno v:
PLoS ONE, Vol 8, Iss 9, p e74834 (2013)
Human migration north through Africa is contentious. This paper uses a novel palaeohydrological and hydraulic modelling approach to test the hypothesis that under wetter climates c.100,000 years ago major river systems ran north across the Sahara to
Externí odkaz:
https://doaj.org/article/43102f68156f4957b5400eb7a5c6a6e2