Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Malcolm Nicol"'
Autor:
Justin Hughes, James Beastall, Efthimios Karadimas, Abhishek Kumar, Francis W. Smith, Douglas Wardlaw, Malcolm Nicol
Publikováno v:
Spine. 33:2909-2914
Study Design. Prospective case series. Objective. To study the radiologic changes in the intervertebral disc after Dynesys dynamic stabilization. Summary of Background Data. Adjacent segment disc degeneration is one of the potential complications of
Publikováno v:
Zeitschrift für Kristallographie. 223:706-710
The crystal structure of rutile-type magnesium deuteride,α-MgD2, has been studied byin situneutron powder diffraction at room temperature and pressures up to 9.3 GPa. The bulk modulusB0= 49(2) GPa is about half, the linear compressibilities (0.0063/
Autor:
Wilfried B. Holzapfel, Malcolm Nicol
Publikováno v:
High Pressure Research. 27:377-392
The Equations of State for Cu, Ag, and Au in the sub-TPa region are constraint by correlated fits of all the thermo-physical data at ambient pressure and by theoretical estimates of the intrinsic anharmonicities. A hierarchy in the parameters provide
Autor:
Monika Hartl, Malcolm Nicol, Sven C. Vogel, Philippe F. Weck, Eunja Kim, Ravhi S. Kumar, Ashley C. Stowe, Andrew Cornelius, Yusheng Zhao, Jianzhong Zhang, Luke L. Daemen
Publikováno v:
The Journal of Physical Chemistry B. 111:13873-13876
We have investigated pressure-induced structural transitions in NaBH4 through density-functional theory calculations combined with X-ray and neutron diffraction experiments. Our calculations confirm that the cubic phase is stable up to 5.4 GPa and an
Autor:
Sivasubramaniam Selvaraj, Niall Alasdair Munro, Sheik Mehboob Hussain, Malcolm Nicol, David Finlayson
Publikováno v:
The Journal of Arthroplasty. 22:893-901
Cement pressurization is critical to achieving optimal results in cemented arthroplasty of the hip. An in vitro experiment using plastic femoral models (10 per group) was undertaken to measure the pressures developed by 3 cementing systems: the Howme
Publikováno v:
Diamond and Related Materials. 16:1136-1139
Single wall carbon nanotubes (SWCNT) were ball milled with Ti and TiH 2 . Samples collected at different milling times were characterized by X-ray diffraction, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray Raman s
Publikováno v:
Diamond and Related Materials. 16:1250-1253
X-ray Raman scattering experiments were performed on C 60 fullerenes and multi-wall carbon nanotubes (MWCNT) up to 20 GPa and 25 GPa using a diamond anvil cell and synchrotron radiation at HPCAT, Advanced Photon Source. The intensity of the near edge
Publikováno v:
Current Applied Physics. 7:135-138
The structure of nanocrystalline and bulk polycrystalline ZnO were examined up to 85 GPa and 50 GPa, respectively using synchrotron X-rays and diamond anvil cells at ambient conditions. The transition from the wurtzite to the rock salt phase in the n
Autor:
Andrew Cornelius, Ravhi S. Kumar, Maddury Somayazulu, Jason S. Gardner, Daniel Errandonea, Malcolm Nicol
Publikováno v:
physica status solidi (b). 244:266-269
The structure of Th 2 Ti 2 O 7 pyrochlore was investigated at high pressures up to 24 GPa at cryogenic temperatures down to 6.5 K using angular dispersive X-ray diffraction with synchrotron radiation at HPCAT, Advanced Photon Source. The cell paramet
Publikováno v:
physica status solidi (b). 244:290-294
We have performed in situ high pressure X-ray powder diffraction experiments on nanocrystalline BaTiO 3 (average particle size 40 nm) up to 52 GPa using synchrotron X-rays in the angle dispersive geometry with a diamond anvil cell. In order to unders