Results 261 to 270 of about 152,318 (298)

Folding of viscous sheets and filaments

Europhysics Letters (EPL), 2000
We consider the nonlinear folding behavior of a viscous filament or a sheet under the influence of an external force such as gravity. Everyday examples of this phenomenon are provided by the periodic folding of a sheet of honey as it impinges on toast, or the folding of a stream of shampoo as it falls on one's hand.
M Skorobogatiy, L Mahadevan
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Protein Folding and β‐Sheet Proteins

Journal of the Chinese Chemical Society, 2000
AbstractThe aim of this comprehensive review is to critically evaluate the progress in research in the area of protein folding. In the first section, we discuss the various models proposed to explain the protein folding paradox. In the succeeding section of the review, a detailed account of the developments in our understanding of the folding path ways
Thallampuranam Krishnaswamy Suresh Kumar, Thirunavukkarasu Sivaraman, Dharmaraj Samuel, Sampath Srisailam, Gopal Ganesh, Hui‐Chu Hsieh, Kuo‐Wei Hung, Ho‐Jen Peng, Meng‐Chiao Ho, Alphonse Ignatius Arunkumar, Chin Yu   +10 more
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Designing and programming self-folding sheets

Robotics and Autonomous Systems, 2014
Abstract This paper considers a robot in the form of a self-folding sheet that is capable of origami-style autonomous folding. The sheet is composed of triangular tiles, folding actuators and an integrated electronic substrate, and is formed as an n × m box-pleated crease pattern.
Byoungkwon An, Daniela Rus
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Origami Sheets That Fold Themselves

Scientific American, 2010
The article discusses research on programmable matter and the heat-induced folding of a thin segmented sheet of composite resin and fiberglass.
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Meso-origami: Folding multilayer graphene sheets

Applied Physics Letters, 2009
Graphene features unique electronic, thermal, and mechanical properties, and the flexibility and strong attraction between graphene layers promotes the formation of self-folded nanostructures. Here we study the self-folding of mono- and multilayer graphene sheets, utilizing a coarse-grained hierarchical multiscale model derived directly from atomistic ...
Steven Cranford, Dipanjan Sen, Markus J. Buehler   +2 more
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Capillarity induced folding of elastic sheets

The European Physical Journal Special Topics, 2009
Surface tension forces induced by a liquid droplet are used to bend thin elastic sheets into three dimensional structures. The resulting 3D shape may be controlled by tailoring the initial cut of the sheet. We derive the criterion for folding from a balance between elastic and capillary effects and compare it with the experiments. This mechanism can be
Py, Charlotte, Reverdy, Paul, Doppler, Lionel, Bico, Jose, Roman, Benoît, Baroud, Charles   +5 more
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The folding of heavy fabric sheets

International Journal of Mechanical Sciences, 1978
Abstract An example of a fabric folding under its own weight is analysed, using bending curve theory to model the fabric cross-section. Reduction of the governing differential equations, and the boundary conditions appropriate to each stage of the motion, to dimensionless form reveals that the parameters which characterize the deformed state depend ...
D.W. Lloyd, W.J. Shanahan, M. Konopasek
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Folding in the Greenland Ice Sheet

Journal of Geophysical Research: Solid Earth, 1987
The deformation of layering into folds is modeled for a linear viscous medium moving over a décollement. Folds are generated by flow variations caused by relief on the décollement, variations in friction, or both. The model is applied to folds forming now in the Greenland Ice Sheet near Dye 3, for which more complete data are available than for ...
I. M. Whillans, K. C. Jezek
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Folding of beta-sheet proteins.

Current opinion in structural biology, 1996
In the past year, interesting new information concerning various aspects of the folding process of beta-sheet proteins has been gleaned. Kinetic and equilibrium folding intermediates have been characterized. Studies of extensively denatured states and of model peptide fragments have enabled important steps to be taken towards an understanding of the ...
U, Carlsson, B H, Jonsson
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Elasto-plastic folding of thin sheets

Acta Mechanica, 1987
A thin sheet is folded by three methods. An elastic-perfectly plastic moment-curvature relationship is assumed. A plastic hinge occurs whenever the local curvature is larger than a critical value. The problem is solved by both numerical integration and asymptotic expansions. The character of the sheet changes distinctly after plasticity sets in.
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