Results 1 to 10 of about 152,541 (294)

The Complexity of Folding Self-Folding Origami

open access: yesPhysical Review X, 2017
Why is it difficult to refold a previously folded sheet of paper? We show that even crease patterns with only one designed folding motion inevitably contain an exponential number of “distractor” folding branches accessible from a bifurcation at the flat ...
Menachem Stern   +2 more
doaj   +3 more sources

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

open access: yesACS Omega, 2019
Anitha Sukumaran Nair   +4 more
doaj   +2 more sources

A comparative study of crumpling and folding of thin sheets [PDF]

open access: yesPhysical Review Letters, 2012
Crumpling and folding of paper are at rst sight very di erent ways of con ning thin sheets in a small volume: the former one is random and stochastic whereas the latest one is regular and deterministic. Nevertheless, certain similarities exist. Crumpling
A. Boudaoud   +5 more
core   +13 more sources

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

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

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

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
Narain, Rahul   +2 more
openaire   +4 more sources

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

Epithelial sheet folding induces lumen formation by Madin-Darby canine kidney cells in a collagen gel. [PDF]

open access: yesPLoS ONE, 2014
Lumen formation is important for morphogenesis; however, an unanswered question is whether it involves the collective migration of epithelial cells. Here, using a collagen gel overlay culture method, we show that Madin-Darby canine kidney cells migrated ...
Sumire Ishida   +6 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

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