Lightweight core topologies have been considered as an advanced alternative to improve the overall performance of sandwich structures in bending. Designed beams containing 3D printed cores conventional honeycomb, re-entrant auxetic honeycomb with two positions cells, and chiral were created CATIA V5. The manufactured from polylactic acid polymer (PLA) by fused deposition modeling (FDM) using Ul...

Introduction: Clinical evidence suggests that hamstring tightness influences lumbar pelvic rhythm and shortened increase the risk of injury to spine. Objectives: To determine association with tilt in standing position, trunk, range motion during forward bending among sewing machine operators Methods: A descriptive cross-sectional study was conducted 169 aged 18-55 years using passive knee exten...

the spline finite strip method (s.f.s.m.) for buckling analysis of plates and plate assemblies subjected to longitudinal compression and bending, transverse compression as well as shear is described. the method allows for the boundary conditions. local buckling coefficients of plates with different boundary conditions under compression, bending and shear are calculated. convergence studies with...

Neural tube closure is a fundamental embryonic event whose molecular regulation is poorly understood. As mouse neurulation progresses along the spinal axis, there is a shift from midline neural plate bending to dorsolateral bending. Here, we show that midline bending is not essential for spinal closure since, in its absence, the neural tube can close by a 'default' mechanism involving dorsolate...

in this study, the microstructure and properties of foam glass obtained as a result of the interaction of the waste glass with sic as the foaming agent and fe2o3 as the oxidizing agent have been investigated using scanning electron microscopy (sem), as well as three-point bending and pycnometery tests. first, the temperature and optimized amount of sic for making foam glass was determined. the ...