Heart attack and stroke are often caused by atherosclerotic plaque rupture, which happens without warning most of the time. Magnetic resonance imaging (MRI)-based atherosclerotic plaque models with fluid-structure interactions (FSIs) have been introduced to perform flow and stress/strain analysis and identify possible mechanical and morphological indices for accurate plaque vulnerability assess...

We use the energy equivalence principle and the Mori-Tanaka method of considering the interaction among inclusions to derive the effective thermo-electro-mechanical properties of a 4-phase composite consisting of an elastic matrix and shape memory alloy, piezoelectric and inert (nonpiezoelectric) inclusions. It is shown that the shapes and the volume fraction of inert (e.g. air) inclusions sign...

Localization to the ground state of axial motion is demonstrated for a single, trapped atom strongly coupled to the field of a high finesse optical resonator. The axial atomic motion is cooled by way of coherent Raman transitions on the red vibrational sideband. An efficient state detection scheme enabled by strong coupling in cavity QED is used to record the Raman spectrum, from which the stat...

Abstract An energy pile undertakes the functions of supporting superstructure and controlling indoor temperature building, thermal-mechanical coupling response an makes its load transfer mechanism different from that conventional engineering piles. Moreover, responses piles in summer winter conditions are also need to be explored separately. Based on a ground source heat pump foundation worksho...

tehran shomal highway passes through alborz mountains with a tunnel length of 6400 meters. there are two main tunnels. a full three-dimensional (3d) numerical analysis coupled with elasto-plastic material models was conducted on the inclined access tunnel. bending moment, axial force and the lining displacements due to the internal forces applied on the shotcrete lining are calculated. axial fo...

OBJECTIVES The purpose of this study was to characterize the hemodynamic force acting on plaque and to investigate its relationship with lesion geometry. BACKGROUND Coronary plaque rupture occurs when plaque stress exceeds plaque strength. METHODS Computational fluid dynamics was applied to 114 lesions (81 patients) from coronary computed tomography angiography. The axial plaque stress (APS...

OBJECTIVE This study aimed to investigate the effects involved with the artificial nucleus pulposus (NP) replacement on stress distribution of the cartilaginous endplate (CEP) in a 3-dimensional lumbar intervertebral disc (IVD) model using a finite element (FE) analysis. METHODS A healthy male volunteer was recruited for the purposes of the study and a spiral computed tomography scan was subs...