Results 61 to 70 of about 2,089,020 (348)

Dislocation climb models from atomistic scheme to dislocation dynamics [PDF]

, 2016
We develop a mesoscopic dislocation dynamics model for vacancy-assisted dislocation climb by upscalings from a stochastic model on the atomistic scale. Our models incorporate microscopic mechanisms of (i) bulk diffusion of vacancies, (ii) vacancy exchange dynamics between bulk and dislocation core, (iii) vacancy pipe diffusion along the dislocation ...
arxiv   +1 more source

Elastic vs. plastic strain relaxation in coalesced GaN nanowires: an x-ray diffraction study [PDF]

Phys. Rev. Applied 6, 064023 (2016), 2016
The coalescence in dense arrays of spontaneously formed GaN nanowires proceeds by bundling: adjacent nanowires bend and merge at their top, thus reducing their surface energy at the expense of the elastic energy of bending. We give a theoretical description of the energetics of this bundling process.
arxiv   +1 more source

Seismic reliability assessment of classical columns subjected to near-fault ground motions [PDF]

, 2013
A methodology for the performance-based seismic risk assessment of classical columns is presented. Despite their apparent instability, classical columns are, in general, earthquake resistant, as proven from the fact that many classical monuments have ...
Fragiadakis, Michalis, Psycharis, Ioannis, Stefanou, Ioannis   +2 more
core   +5 more sources

Evidence of Long‐Range Dzyaloshinskii–Moriya Interaction at Ferrimagnetic Insulator/Nonmagnetic Metal Interfaces

Advanced Functional Materials, EarlyView.
This study demonstrates that in sputter‐deposited Tb3Fe5O12 (TbIG)/nonmagnetic metal (NM) heterostructures, the interfacial Dzyaloshinskii–Moriya Interaction (DMI) originates at the TbIG/NM interface. Furthermore, measurements suggest a significant interfacial DMI arising from a second non‐local interface, created by inserting a Cu spacer layer between
Stefano Fedel, Mario Villa, Silvia Damerio, Emre Demiroglu, Caner Deger, Jaume Gazquez, Can O. Avci   +6 more
wiley   +1 more source

In-game Management of Common Joint Dislocations

Sports health, 2014
Context: Sideline management of sports-related joint dislocations often places the treating medical professional in a challenging position. These injuries frequently require prompt evaluation, diagnosis, reduction, and postreduction management before ...
N. Skelley, J. Mccormick, Matthew V. Smith   +2 more
semanticscholar   +1 more source

Closed medial subtalar dislocation: case report and review of the literature [PDF]

, 2019
A rare case of medial subtalar dislocation is presented and the literature concerning this injury is reviewed. Subtalar joint dislocations are rare and often the result of a high-energy trauma. These talar dislocations represent 1%-2% of all dislocations.
Opondo, Everisto A.
core   +2 more sources

Shape‐Reconfigurable Crack‐Based Strain Sensor with Ultrahigh and Tunable Sensitivity

Advanced Functional Materials, EarlyView.
A highly sensitive crack‐based sensor with tunable strain detection capabilities is demonstrated through controlled nanocrack formation in a line‐patterned shape memory polymer substrate. The sensor design integrates thermoplastic polyurethane and poly(lactic acid), enabling thermo‐responsive reconfiguration of crack geometry.
Seungjae Lee, Youngoh Lee, Cheolhong Park, Yun Goo Ro, Min Sub Kwak, Geonyoung Jeong, Junseo Park, Hyejin Lee, Pan Kyeom Kim, Sung‐Il Chung, Hyunhyub Ko   +10 more
wiley   +1 more source

Bilateral Asymmetrical Hip Dislocation in a 70-year-old Female: A Rare Case Report

Journal of Orthopedics, Traumatology and Rehabilitation
Traumatic dislocation of the hip joint is a rare injury representing 2%–5% of all dislocations while bilateral hip dislocation accounts for 1.25% of all hip dislocations.
T. V. Suresh, D. Naveen, K. Harish, Ravi M. Daddimani   +3 more
doaj   +1 more source

Simultaneous Volar and Dorsal Dislocation of Proximal Inter Phalangeal Joints in Adjacent Fingers - A Case Report

Indian Journal of Plastic Surgery, 1994
Volar dislocation of PIP joint or MCP joint is a rare injury. They are seldom seen acutely and hence literature is sparse on the ideal method of management of these injuries. We had a patient who presented with a rare combination of volar dislocations of
S Raja Sabapathy, Vijay C Bose, C Rex, J Dheenadhayalan   +3 more
doaj   +1 more source

New Mechanics of Spinal Injury [PDF]

, 2008
The prediction and prevention of spinal injury is an important aspect of preventive health science. The spine, or vertebral column, represents a chain of 26 movable vertebral bodies, joint together by transversal viscoelastic intervertebral discs and longitudinal elastic tendons. This paper proposes a new locally-coupled loading-rate hypothesis}, which
arxiv   +1 more source