Results 71 to 80 of about 314,267 (342)

Characterizing the Mechanical Performance of a Bare-Metal Stent with an Auxetic Cell Geometry

open access: yesApplied Sciences, 2022
This study develops and characterizes the distinctive mechanical features of a stainless-steel metal stent with a tailored structure. A high-precision femtosecond laser was used to micromachine a stent with re-entrant hexagonal (auxetic) cell geometry ...
Sukhwinder K. Bhullar   +5 more
doaj   +1 more source

More on Lensing by a Cosmological Constant [PDF]

open access: yesMon.Not.Roy.Astron.Soc. 403:2152-2156,2010, 2008
The question of whether or not the cosmological constant affects the bending of light around a concentrated mass has been the subject of some recent papers. We present here a simple, specific and transparent example where $\Lambda$ bending clearly takes place, and where it is clearly neither a coordinate effect nor an aberration effect.
arxiv   +1 more source

Deflection Ductility of Slabs Made of Hybrid Mesh-And-Fibre-Reinforced Cementbased Composite

open access: yesArchives of Civil Engineering, 2017
Steel Mesh-Reinforced Cementitious Composites (SMRCC) (traditionally known as ferrocement) have been in existence for few decades, but have some limitations set on element thickness and number of reinforcing mesh layers and the resulting deflection ...
Sakthivel P. B.
doaj   +1 more source

Buckling of elastic fibers in a shear flow

open access: yesNew Journal of Physics, 2022
Three-dimensional dynamics of flexible fibers in shear flow are studied numerically, with a qualitative comparison to experiments. Initially, the fibers are straight, with different orientations with respect to the flow. By changing the rotation speed of
Agnieszka M Słowicka   +5 more
doaj   +1 more source

Analysis of Strain-Hardening Viscoplastic Wide Sheets Subject to Bending under Tension

open access: yesMetals, 2022
The present paper provides an accurate solution for finite plane strain bending under tension of a rigid/plastic sheet using a general material model of a strain-hardening viscoplastic material.
Sergei Alexandrov, Elena Lyamina
doaj   +1 more source

Elastic Bending Modulus for Single-Layer Black Phosphorus [PDF]

open access: yes, 2014
We derive an analytic formula for the elastic bending modulus of single-layer black phosphorus (SLBP) based on the valence force field model. The obtained elastic bending modulus is 4.8028 eV and 7.9905 eV along the armchair and zigzag directions in the SLBP, respectively. These values are obviously larger than the bending modulus of 1.4 eV in graphene
arxiv   +1 more source

Aspects of flexural behavior of high strength concrete elements with or without steel fibers [PDF]

open access: yesUrbanism. Arhitectura. Constructii, 2013
Steel fiber reinforced high strength concrete (SFRHSC) is concrete made of hydraulic cements containing fine or fine and coarse aggregate and discontinuous discrete steel fibers. In tension, SFRHSC fails only after the steel fiber breaks or is pulled out
Gheorghe-Alexandru Bărbos
doaj  

Full-Scale Testing on Seismic Performance of Surge Arrester with Retrofitted Composite Insulators

open access: yesBuildings, 2022
In electrical substations, glass-fibre reinforced polymer (GFRP) insulators provide an alternative to porcelain insulators for better seismic performance.
Sheng Li   +5 more
doaj   +1 more source

An investigation into the feasibility and efficacy of stereotactic radiosurgery for 1–3 cm single brain lesions on the ring‐mounted Halcyon LINAC

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose An evaluation of the accuracy, safety, and efficiency of the Halcyon ring delivery system (RDS) for stereotactic radiosurgery (SRS) treatment to relatively small (1–3 cm) brain lesions. Methods After completing the extensive in‐house quality assurance checks including Winston–Lutz test and independent dose verification via MD Anderson ...
Kate Hazelwood   +5 more
wiley   +1 more source

Wire bending

open access: yesJournal of Combinatorial Theory, Series A, 1989
AbstractIn this paper we study the three-dimensional curves generated by the iterated bending of a piece of wire, which are generalizations of the so-called “dragon curves” or “paper-folding sequences” previously studied by Davis and Knuth, Mendès France, and other writers. These “wire-bending sequences” have several surprising properties.
France, Michel Mendès, Shallit, J.O
openaire   +2 more sources

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