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Keywords: curvature
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Journal Articles
Article Type: Review Articles
J Biomech Eng. October 2020, 142(10): 100804.
Paper No: BIO-20-1105
Published Online: August 31, 2020
... pathological development in the cells; pathological or aging cells, on the other hand, can alter their micro-environment to become abnormal. In this minireview, we discuss four important biophysical cues of the micro-environment—stiffness, curvature, extracellular matrix (ECM) architecture and viscosity...
Journal Articles
Article Type: Research-Article
J Biomech Eng. August 2014, 136(8): 081001.
Paper No: BIO-13-1121
Published Online: June 2, 2014
... artery with physiologically relevant flow parameters. To study the effect of coronary artery (CA) geometry change on stent elastic modulus mismatch, models where the curvature, torsion and both curvature and torsion change were examined. The elastic modulus is increased by a factor of two, five, and ten...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. November 2012, 134(11): 114503.
Published Online: October 26, 2012
...Kathleen D. Klinich; Sheila M. Ebert; Matthew P. Reed Knowledge of the distributions of cervical-spine curvature is needed for computational studies of cervical-spine injury in motor-vehicle crashes. Many methods of specifying spinal curvature have been proposed, but they often involve qualitative...
Journal Articles
Article Type: Research Papers
J Biomech Eng. July 2012, 134(7): 071005.
Published Online: July 13, 2012
... is not extensively studied. In this work, we focus our investigation on the localized hemodynamic effects of dynamic changes in curvature and torsion. It is our objective to understand and reveal the mechanism by which changes in curvature and torsion contribute towards the observed wall shear stress distribution...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. June 2012, 134(6): 064502.
Published Online: June 12, 2012
... typically depicted and used, our mean artery was tortuous exhibiting nonplanarity and complex curvature and torsion variations. The bifurcation angle was 36 deg ± 11 deg if measured using arterial centerlines and 15 deg ± 14 deg if measured between the walls of the carotid bifurcation branches. The average...
Journal Articles
Article Type: Research Papers
J Biomech Eng. December 2011, 133(12): 121004.
Published Online: December 21, 2011
... in the platelet surface membrane, various plasma proteins, and a fibrin network [( 10 )]. High shear stresses, along with chemical agonists, induce platelet activation [( 10 )]. Activated platelets activate additional platelets by releasing and catalyzing platelet agonists [( 10 )]. Curvature of tortuous vessels...
Journal Articles
Article Type: Research Papers
J Biomech Eng. June 2009, 131(6): 061015.
Published Online: May 12, 2009
... existing CT data, the three-dimensional geometry of nine unruptured human AAAs was reconstructed and characterized quantitatively. We propose and evaluate a series of 1D size, 2D shape, 3D size, 3D shape, and second-order curvature-based indices to quantify AAA geometry, as well as the geometry of a size...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. February 2007, 129(1): 88–96.
Published Online: July 21, 2006
... in ABAQUS . Effective material fiber orientations were assumed to align with principal surface curvatures. Static deformation of the aneurysm models were simulated assuming uniform wall thickness and internal pressure load of 100 mm Hg . Results. The numerical analysis technique was validated...
Journal Articles
Article Type: Article
J Biomech Eng. April 2005, 127(2): 229–236.
Published Online: September 2, 2004
... by endothelial cells. These structures are subject to large mechanical deformations when the plasma membrane is stretched and subject to a change of its curvature. To enhance our understanding of plasmalemmal vesicles we need to improve the understanding of the mechanics in regions of high membrane curvatures...