64 research outputs found
Melting of tantalum at high pressure determined by angle dispersive x-ray diffraction in a double-sided laser-heated diamond-anvil cell
The high pressure and high temperature phase diagram of Ta has been studied
in a laser-heated diamond-anvil cell (DAC) using x-ray diffraction measurements
up to 52 GPa and 3800 K. The melting was observed at nine different pressures,
being the melting temperature in good agreement with previous laser-heated DAC
experiments, but in contradiction with several theoretical calculations and
previous piston-cylinder apparatus experiments. A small slope for the melting
curve of Ta is estimated (dTm/dP = 24 K/GPa at 1 bar) and a possible
explanation for this behaviour is given. Finally, a P-V-T equation of states is
obtained, being the temperature dependence of the thermal expansion coefficient
and the bulk modulus estimated.Comment: 31 pages, 8 figures, to appear in J.Phys.:Cond.Matte
Bullet-induced synovitis as a cause of secondary osteoarthritis of the hip joint: A case report and review of literature
<p>Abstract</p> <p>Background</p> <p>With increasing prevalence of gunshot injuries we are seeing more patients with retained bullet fragments lodged in their bodies. Embedded lead bullets are usually considered inert after their kinetic energy has dissipated hence these are not removed routinely. However, exposure of any foreign body to synovial fluid may lead to rapid degradation and hence result in systemic absorption, causing local and systemic symptoms. We present the case of a thirty year old man who came to our out patient department with a history of progressive, severe hip pain ten years after a gun shot injury to his right hip.</p> <p>Conclusion</p> <p>The common belief that intraarticular bullets should not be removed has no benefit and may result in unwanted long term complications.</p
Assessment of phenomenological models for viscosity of liquids based on nonequilibrium atomistic simulations of copper
Burning Mississippi into Memory? Cinematic Amnesia as a Resource for Remembering Civil Rights
Apocynin influence on oxidative stress and cardiac remodeling of spontaneously hypertensive rats with diabetes mellitus
Nanoscale carbon nanotube motor schematics and simulations for micro-electro-mechanical machines
Design for Six Sigma (DFSS) for additive manufacturing applied to an innovative multifunctional fan
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