Zobrazeno 1 - 10
of 221
pro vyhledávání: '"David J. Prior"'
Publikováno v:
Saudi Dental Journal, Vol 33, Iss 7, Pp 546-553 (2021)
Introduction: Titanium (Ti) is widely accepted as a biomaterial for orthopaedic and dental implants, primarily due to its capacity to integrate directly into the bone and its superior corrosion resistance. It has been suggested that titanium–zircon
Externí odkaz:
https://doaj.org/article/f3bd1dec6de147d6b7e39e50ec78623b
Autor:
Holly Still, Christina Hulbe, Martin Forbes, David J. Prior, M. Hamish Bowman, Bia Boucinhas, Lisa Craw, Daeyeong Kim, Franz Lutz, Robert Mulvaney, Rilee E. Thomas
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
We use high resolution, ground-based observations of ice displacement to investigate ice deformation across the floating left-lateral shear margin of Priestley Glacier, Terra Nova Bay, Antarctica. Bare ice conditions allow us to fix survey marks dire
Externí odkaz:
https://doaj.org/article/631b573be59c44b6967adf80eaae62c6
Autor:
Rilee E. Thomas, Marianne Negrini, David J. Prior, Robert Mulvaney, Holly Still, M. Hamish Bowman, Lisa Craw, Sheng Fan, Bryn Hubbard, Christina Hulbe, Daeyeong Kim, Franz Lutz
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
A 58 m long azimuthally oriented ice core has been collected from the floating lateral sinistral shear margin of the lower Priestley Glacier, Terra Nova Bay, Antarctica. The crystallographic preferred orientations (CPO) and microstructures are descri
Externí odkaz:
https://doaj.org/article/b0a2bd2a8f0f46e28f4e7f7c61cc31f2
Publikováno v:
Journal of Glaciology, Vol 64, Pp 771-780 (2018)
We have mapped the full crystallographic orientation of sea ice using electron backscatter diffraction (EBSD). This is the first time EBSD has been used to study sea ice. Platelet ice is a feature of sea ice near ice shelves. Ice crystals accumulate
Externí odkaz:
https://doaj.org/article/f21b92d62fdc42118a6a8c9190f3f6e7
Publikováno v:
Journal of Glaciology, Pp 1-18
This study examines the performance of low-cost, low-power GNSS positioning systems for glacier monitoring in high-latitude environments. We compare the positioning performance of co-located low-cost u-blox ZED-F9P GNSS units (a few hundred USDs) and
Externí odkaz:
https://doaj.org/article/96312aedb26a40b59c2c32562f7adb95
EBSD data of all peridotite samples.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::906c35d7a3c2c4016c509771a562757d
Autor:
Sheng Fan, David J. Prior, Brent Pooley, Hamish Bowman, Lucy Davidson, Sandra Piazolo, Chao Qi, David L. Goldsby, Travis F. Hager
Grain growth can modify the microstructure of natural ice, including the grain size and crystallographic preferred orientation (CPO). To understand better grain-growth processes and kinetics, we compared microstructural data from synthetic and natura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f16c5bb00dd01910f8b9171aac69f34a
https://doi.org/10.5194/tc-2022-228
https://doi.org/10.5194/tc-2022-228
Autor:
Nicholas M. Rathmann, Aslak Grinsted, Klaus Mosegaard, David A. Lilien, Julien Westhoff, Christine S. Hvidberg, David J. Prior, Franz Lutz, Rilee E. Thomas, Dorthe Dahl-Jensen
Publikováno v:
Rathmann, N M M, Grinsted, A, Mosegaard, K, Lilien, D A A, Westhoff, J, Hvidberg, C S S, Prior, D J J, Lutz, F, Thomas, R E E & Dahl-Jensen, D 2022, ' Elastic wave propagation in anisotropic polycrystals : inferring physical properties of glacier ice ', Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 478, no. 2268, 20220574 . https://doi.org/10.1098/rspa.2022.0574
An optimization problem is proposed for inferring physical properties of polycrystals given ultrasonic (elastic) wave velocity measurements, made across multiple sample orientations. The feasibility of the method is demonstrated by inferring both the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e3c66f4d39be305ea2adafc4ce98de7
https://doi.org/10.1098/rspa.2022.0574
https://doi.org/10.1098/rspa.2022.0574
Publikováno v:
Geology. 49:1102-1106
Peridotite xenoliths entrained in magmas near the Alpine fault (New Zealand) provide the first direct evidence of deformation associated with the propagation of the Australian-Pacific plate boundary through the region at ca. 25–20 Ma. Two of 11 sam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d722df562a65f371a42d602abc2127a6
https://doi.org/10.1130/g48532.1
https://doi.org/10.1130/g48532.1
Autor:
Zachary Michels, Marianne Negrini, Peter J. Hudleston, Patricia J. Langhorne, Chao Qi, David J. Prior, Morgan E. Monz, Sheng Fan
Publikováno v:
The Cryosphere. 15:303-324
Microstructures provide key insights into understanding the mechanical behavior of ice. Crystallographic preferred orientation (CPO) develops during plastic deformation as ice deforms dominantly by dislocation glide on the basal plane, modified and o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b3ec80359fe87198ededed94ba2a957
https://doi.org/10.5194/tc-15-303-2021
https://doi.org/10.5194/tc-15-303-2021