Results 31 to 40 of about 847,997 (319)
Mechanisms to Splay-Bend Nematic Phases [PDF]
Phys. Rev. E 100, 022704 (2019), 2019 While twist-bend nematic phases have been extensively studied, the experimental observation of two dimensional, oscillating splay-bend phases is recent. We consider two theoretical models that have been used to explain the formation of twist-bend phases -- flexoelectricity and bond orientational order -- as mechanisms to induce splay-bend phases ...
arxiv +1 more source
Transient Deformation Regime in Bending of Single-Walled Carbon Nanotubes [PDF]
, 2006 Pure bending of single-walled carbon nanotubes between (5,5) and (50,50) is studied using molecular dynamics based on the reactive bond order potential. Unlike smaller nanotubes, bending of (15,15) and larger ones exhibits an intermediate deformation in ...
Giapis, K. P., Kutana, A.
core +1 more source
Strongly bent double-stranded DNA: reconciling theory and experiment [PDF]
Frontiers in Physics, volume 7, Article 195 (2019), 2019 The strong bending of polymers is poorly understood. We propose a general quantitative framework of polymer bending that includes both the weak and strong bending regimes on the same footing, based on a single general physical principle. As the bending deformation increases beyond a certain (polymer-specific) point, the change in the convexity ...
arxiv +1 more source
Bending of rectangular plates subject to non-uniform pressure distributions relevant to containment structures [PDF]
, 2017 Rectangular planform silos are often used where there is need for simple construction or space restrictions. The flexibility of the flat plate walls leads to a horizontal variation in wall pressure across each wall, with much reduced pressures at the mid‐
Brown +7 more
core +1 more source
The Annals of Family Medicine, 2017 In this issue of the Annals of Family Medicine , Dr Johansen adds to our understanding that despite efforts to control health care costs over the past 2 decades, we are quickly approaching a reality in which health care spending subsumes one-fifth of our economy, which is well above ...
Andrea Harris, Karen B. DeSalvo
openaire +3 more sources
Bending of functionally graded plates via a refined quasi-3D shear and normal deformation theory
Curved and Layered Structures, 2018 Bending of functionally graded plate with two reverse simply supported edges is studied based upon a refined quasi three-dimensional (quasi-3D) shear and normal deformation theory using a third-order shape function.
Zenkour Asharf M., Alghanmi Rabab A.
doaj +1 more source
Biosurface and Biotribology, 2021 In this study, the effects of in vivo (head flexion‐extension, lateral bending, and axial rotation) and in vitro (ISO 18192‐1) working conditions on the wear of ultrahigh molecular weight polyethylene (UHWMPE)‐based cervical disc prosthesis were studied ...
Hua Xin +4 more
doaj +1 more source
Cogent Engineering, 2022 In a thermal environment, using the formulations of the refined shear deformation theory, the flexion of the functionally graduated rectangular plates (P-FGM) based on nonuniform elastic foundations is presented.
Bachir Bouderba, Berrabah Hamza Madjid
doaj +1 more source
Analysis of silicon nitride partial Euler waveguide bends [PDF]
, 2019 In this work we present a detailed analysis of individual loss mechanisms in silicon nitride partial Euler bends at a wavelength of 850 nm. This structure optimizes the transmission through small radii optical waveguide bends. The partial Euler bend geometry balances losses arising from the transition from the straight to the bend waveguide mode, and ...
arxiv +1 more source
Light's Bending Angle due to Black Holes: From the Photon Sphere to Infinity [PDF]
, 2006 The bending angle of light is a central quantity in the theory of gravitational lensing. We develop an analytical perturbation framework for calculating the bending angle of light rays lensed by a Schwarzschild black hole.
A. O. Petters +22 more
core +2 more sources