In this study, the dynamic responses under blast loading of carbon fiber reinforced aluminum alloy laminates with different curvature radii, numbers layers, and layer directions were compared numerically. The finite element models built ABAQUS/Explicit. To calibrate numerical models, experiments on curved modeled, results showed good agreement experimental data. calibrated used to simulate resp...

in this study to determine whether spine stiffness is predictive of clinical results after lumbar spinal fusion for spinal stenosis, a total of 78 patients were measured intraoperatively with kocher clamp manual distraction technique to determine motion segment stiffness then spinal fusion was performed for any loose segment. ‎statistical analysis revealed that stiffness measurement correlate w...

spherical equivalent (se) has not been linked to increased cardiovascular morbidity. methods: 132 hungarian twins (age 43.3±16.9 years) underwent refraction measurements (huvitz mrk-3100 premium autorefractokeratometer) and oscillometry (tensiomed arteriograph). results: heritability analysis indicated major role for genetic components in the presence of right and left se (82.7%, 95%ci, 62.9 to...

objective: the study was designed to examine explicit memory bias in trait-anxiety and obsessive compulsive disorder. method: memory bias was examined in three groups of subjects: low-trait  anxious (20 subjects), high-trait anxious (20 subjects), and obsessive compulsive patients (20 subjects) in whom danger schema were activated after they were exposed the threat-related material. the trait-a...

We extend and analyze the energy-based discontinuous Galerkin method for second order wave equations on staggered structured meshes. By combining spatial staggering with local time-stepping near boundaries, overcomes typical numerical stiffness associated high piecewise polynomial approximations. In one space dimension periodic boundary conditions suitably chosen fluxes, we prove bounds operato...

this study examines the efficiency of pedagogical intervention in raising l2 pragmatic awareness of the iranian efl learners. more specifically, it seeks to investigate the difference between explicit and implicit instructions in improving pragmatic appropriateness of the english refusals by adult persian native speakers in an efl classroom context. fifty-four participants, with approximately t...

braced frames structures have a good lateral stiffness against earthquakes. however, energy loss of their members is slight and strong forces are given to the structures. moment frames have a more flexible function against earthquakes and also have a better flexibility than braced frames. however, since its lateral stiffness is low, too much displacement of the structure results in an increase ...

We consider the instantaneous equilibrium (ieq) transition of an underdamped Brownian particle under arbitrary time-dependent temperature and potential variations derive analytic results for protocols minimal dissipative work. Explicit dissipation associated energetics are obtained cases pure variation, parameter (stiffness) isentropic ieq processes. The condition enforces forward backward to b...

In the field of mechanism design, behaviour compliant shell mechanisms is commonly characterised via eigenscrew decomposition their spatial stiffness matrix. Recent developments have included design made with anisotropic materials. Conceptually, these are very similar to morphing composite structures that typically designed using structural mechanics approaches. Eigenscrew could, therefore, pro...