We experimentally investigate the effect of geometrical anisotropy for buoyant ellipsoidal particles rising in a still fluid. All other parameters, such as Galileo number $Ga \approx 6000$ and particle density ratio $\Gamma 0.53$ are kept constant. The aspect ratio, $\chi$, is varied systematically from $\chi$ = 0.2 (oblate) to 5 (prolate). Based on tracking all degrees motion, we identify six ...

SUMMARY Tectonic plate motions predominantly result from a balance between the potential energy change of subducting slab and viscous dissipation in mantle, bending lithosphere slab–upper interface. A wide range observations active subduction zones exhumed rocks suggest that interface shear zone rheology is sensitive to composition crustal material—for example, sediments versus mafic igneous oc...

Background: Lumbar motion analysis is used as a clinical method in the diagnosis and treatment of low back pain (LBP). So far, no studies have shown if manipulating the sacroiliac joint (SIJ) will change spinal kinematics.Objective: The main objectives of this study were to investigate the effects of SIJ manipulation on the lumbar kinematics in subjects with innominate rotation and to compare l...

BACKGROUND The purpose of this study was to evaluate the effect of mobile-bearing implant design and activity on knee arthroplasty kinematics during three activities of daily living. METHODS In vivo kinematics were analyzed using 3D model registration from fluoroscopic images of non-weightbearing knee flexion-extension, weight-bearing squatting and stair activities in 20 knees in 10 patients ...