Zobrazeno 1 - 10
of 18
pro vyhledávání: '"C. R. Lawson"'
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract The invention of the 3He/4He dilution refrigerator opened a new chapter in experimental ultra-low temperature physics. Dilution refrigerators became essential for providing ultra-low temperature environments for nuclear demagnetisation exper
Externí odkaz:
https://doaj.org/article/6644e7b405444e08aa1c4ae736e5fa2a
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 433:23-27
The relaxation processes in CH4 solids irradiated by an electron beam were studied with a focus on post-irradiation phenomena. Because of absence of thermally stimulated luminescence (TSL) from pure solid methane we applied current activation spectro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::985a3baf0806a03be33f8061fa90809a
https://doi.org/10.1016/j.nimb.2018.06.031
https://doi.org/10.1016/j.nimb.2018.06.031
Autor:
R. Schanen, M. J. Fear, Viktor Tsepelin, C. R. Lawson, Richard P. Haley, L. A. Wheatland, A. M. Guénault, Shaun N. Fisher, George R. Pickett, D. I. Bradley
Publikováno v:
Journal of Low Temperature Physics. 175:379-384
We have been studying the behaviour of commercial quartz tuning forks immersed in superfluid 4He and driven at resonance. For one of the forks we have observed hysteresis and switching between linear and non-linear damping regimes at temperatures bel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d21b5fefc5ae51cdc728d654b22759b
https://doi.org/10.1007/s10909-013-0931-5
https://doi.org/10.1007/s10909-013-0931-5
Autor:
C. R. Lawson, Viktor Tsepelin, A. M. Guénault, Paul N. Williams, R. Schanen, M. J. Fear, Shaun N. Fisher, Richard P. Haley, George R. Pickett, M. Človečko, D. I. Bradley
Publikováno v:
Journal of Low Temperature Physics. 165:114-131
We have developed a new “floppy wire” device for studying the motion through quantum fluids and solids at very low temperatures. The device is particularly well suited for producing large amplitudes of motion, for measuring drag forces at low fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae0c2fe54948cfab2e6b1e2ecfa02a38
https://doi.org/10.1007/s10909-011-0388-3
https://doi.org/10.1007/s10909-011-0388-3
Autor:
Elena V. Savchenko, D. M. Jenkins, S. A. Uyutnov, C. R. Lawson, M. A. Bludov, D. J. Haynes, O. Kirichek, I. V. Khyzhniy
Publikováno v:
Journal of Physics: Conference Series. 969:012006
Physicochemical properties of solid methane exposed to ionizing radiation have attracted significant interest in recent years. Here we present new trends in the study of radiation effects in solid methane. We particularly focus on relaxation phenomen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5ad56eda8c3732af527ac20a59dbc16
https://doi.org/10.1088/1742-6596/969/1/012006
https://doi.org/10.1088/1742-6596/969/1/012006
Autor:
C. R. Lawson
Publikováno v:
Geosynthetics International. 15:384-427
Historically, geotextile containment has been used to encapsulate sandy soils to permit their use as flexible, erosion-resistant, mass-gravity structures in hydraulic and marine applications. More recently, geotextile containment has been used as a m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0aa40437477786bd77b55465d91856f7
https://doi.org/10.1680/gein.2008.15.6.384
https://doi.org/10.1680/gein.2008.15.6.384
Autor:
A. M. Guénault, Richard P. Haley, Viktor Tsepelin, D. I. Bradley, R. Schanen, Shaun N. Fisher, C. R. Lawson, George R. Pickett, M. J. Fear
We have investigated the behaviour of a large vibrating wire resonator in the B-phase of superfluid He-3 at zero pressure and at temperatures below 200 mu K. The vibrating wire has a low resonant frequency of around 60 Hz. At low velocities the motio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0af3b73e3d8263d385cc8953ac0101e
https://doi.org/10.1007/s10909-013-0923-5
https://doi.org/10.1007/s10909-013-0923-5
Autor:
Paul N. Williams, A. M. Guénault, Richard P. Haley, George R. Pickett, C. R. Lawson, Mukesh Kumar, Shaun N. Fisher, D. I. Bradley, M.W. Poole, Lydia Munday, Peter V. E. McClintock, R. Schanen, Viktor Tsepelin
We present measurements of the dissipative turbulent drag on a vibrating grid in superfluid ${}^{4}$He over a wide range of (low) frequencies. At high velocities, the dissipative drag is independent of frequency and is approximately the same as that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13d8e1bd7172c66bcd466191b585be9f
https://doi.org/10.1103/PhysRevB.85.224533
https://doi.org/10.1103/PhysRevB.85.224533
Autor:
T. W. Yee, C. R. Lawson
Publikováno v:
Geo-Frontiers 2011.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a286210a23ba4aed0671007cebf971ff
https://doi.org/10.1061/41165(397)335
https://doi.org/10.1061/41165(397)335
Autor:
C R Lawson
Publikováno v:
Proceedings of the Institution of Civil Engineers - Transport. 95:197-200
This Paper provides examples of the use of separators in road construction. It highlights aspects of function and cost saving and examines on-site construction procedure benefits prior to the construction of the road. It also highlights the essential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bec4f3aab7740a1d0ed354740b89cbb
https://doi.org/10.1680/itran.1992.20387
https://doi.org/10.1680/itran.1992.20387