Results 1 to 10 of about 35,132 (309)

Hybrid Poly(hydroxy urethane)s: Folded-Sheet Morphology and Thermoreversible Adhesion [PDF]

open access: yesACS Omega, 2019
Hybrid poly­(hydroxy urethane)­s (PHUs) are synthesized by copolymerizing aromatic/alicyclic cyclic carbonates with a polyether amine via addition polymerization. They result into polymers with an average molecular weight of 10 kDa and exhibit solubility
Anitha Sukumaran Nair   +4 more
doaj   +3 more sources

Plasticity and aging of folded elastic sheets [PDF]

open access: yesPhysical Review E, 2020
9 pages, 10 ...
Jules, T.   +2 more
openaire   +3 more sources

Folding and crumpling adaptive sheets [PDF]

open access: yesACM Transactions on Graphics, 2013
We present a technique for simulating plastic deformation in sheets of thin materials, such as crumpled paper, dented metal, and wrinkled cloth. Our simulation uses a framework of adaptive mesh refinement to dynamically align mesh edges with folds and creases. This framework allows efficient modeling of sharp features and avoids bend locking that would
Rahul Narain   +2 more
openaire   +4 more sources

Modeling and simulation of thin sheet folding

open access: yesInterfaces and Free Boundaries, Mathematical Analysis, Computation and Applications, 2022
The article addresses the mathematical modeling of the folding of a thin elastic sheet along a prescribed curved arc. A rigorous model reduction from a general hyperelastic material description is carried out under appropriate scaling conditions on the energy and the geometric properties of the folding arc in dependence on the small sheet thickness ...
Bartels, Soeren   +2 more
openaire   +4 more sources

Shear retrofitting with manually made NSM FRP sheets (MMFRP) of RC beams

open access: yesJournal of Engineering and Applied Science, 2022
This paper presents an experimental study to evaluate the effectiveness of the proposed carbon manually made fibre-reinforced polymer (MMFRP) folded sheet for shear strengthening of nine RC beams using near-surface mounted (NSM) method, in addition to an
Mohamed G. Abdelmohaymen, Hamed M. Salem
doaj   +1 more source

EFFECT OF METAL LOADING ON FOLDED SHEET MESOPOROUS MATERIAL (Me/FSM-16) [PDF]

open access: yesDelta Journal of Science, 2006
Folded sheet mesoporous material FSM-16 has been synthesized and loaded with 3, 6 & 9 wt% of iron, copper or silver. The powder X-ray diffraction and N2 sorption characterizations show that the parent FSM-16 and the prepared nine catalysts have well ...
Maged Samir Ghattas
doaj   +1 more source

Study of a terahertz folded waveguide oscillator with sheet electron beam

open access: yesAIP Advances, 2021
High power vacuum electronic devices of the millimeter wave to terahertz regime are attracting extensive interest due to their potential applications in science and technologies.
Fengying Lu   +4 more
doaj   +1 more source

The Effects of Charged Amino Acid Side-Chain Length on Diagonal Cross-Strand Interactions between Carboxylate- and Ammonium-Containing Residues in a β-Hairpin

open access: yesMolecules, 2022
The β-sheet is one of the common protein secondary structures, and the aberrant aggregation of β-sheets is implicated in various neurodegenerative diseases. Cross-strand interactions are an important determinant of β-sheet stability.
Jing-Yuan Chang   +8 more
doaj   +1 more source

Folding photopolymerized origami sheets by post-curing [PDF]

open access: yesSN Applied Sciences, 2021
AbstractThe paper presents a novel manufacturing approach to fabricate origami based on 3D printing utilizing digital light processing. Specifically, we propose to leave part of the model uncured during the printing step, and then cure it in the post-processing step to set the shape in a folded configuration.
Xiaodong He   +2 more
openaire   +3 more sources

EXTRACTION OF ICE SHEET LAYERS FROM TWO INTERSECTED RADAR ECHOGRAMS NEAR NEEM ICE CORE IN GREENLAND [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Accumulation of snow and ice over time result in ice sheet layers. These can be remotely sensed where there is a contrast in electromagnetic properties, which reflect variations of the ice density, acidity and fabric orientation. Internal ice layers are
S. Xiong, J.-P. Muller
doaj   +1 more source

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