Results 91 to 100 of about 18,220 (210)
Mechanics of Tunable Helices and Geometric Frustration in Biomimetic Seashells
, 2013 Helical structures are ubiquitous in nature and engineering, ranging from DNA molecules to plant tendrils, from sea snail shells to nanoribbons. While the helical shapes in natural and engineered systems often exhibit nearly uniform radius and pitch ...
Chen, Wenzhe +7 more
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Sampling properties of directed networks
, 2012 For many real-world networks only a small "sampled" version of the original network may be investigated; those results are then used to draw conclusions about the actual system. Variants of breadth-first search (BFS) sampling, which are based on epidemic
A. Ntoulas +12 more
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Sticky Pixels: Evolutionary Growth by Random Drop Ballistic Aggregation [PDF]
, 2001 Over the years many techniques have been developed for simulating and modelling trees, ferns, crystals and natural structures. Indeed, many complex and realistic images have been formed.
Roberts, Jonathan C.
core
Large-scale inference and graph theoretical analysis of gene-regulatory networks in B. stubtilis
, 2006 We present the methods and results of a two-stage modeling process that generates candidate gene-regulatory networks of the bacterium B. subtilis from experimentally obtained, yet mathematically underdetermined microchip array data.
Albert +42 more
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Structure of Business Firm Networks and Scale-Free Models [PDF]
, 2008 We study the structure of business firm networks and scale-free models with degree distribution $P(q) \propto (q+c)^{-\lambda}$ using the method of $k$-shell decomposition.We find that the Life Sciences industry network consist of three components: a ...
Havlin, Shlomo +4 more
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Classical Scattering for a driven inverted Gaussian potential in terms of the chaotic invariant set
, 2003 We study the classical electron scattering from a driven inverted Gaussian potential, an open system, in terms of its chaotic invariant set. This chaotic invariant set is described by a ternary horseshoe construction on an appropriate Poincare surface of
A. Emmanouilidou +27 more
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Bubble evolution and fuzz formation in plasma-facing materials: from ridges to tendrils
Nuclear FusionFuzz formation in plasma-facing materials remains insufficiently understood. We correlate subsurface helium-bubble evolution with surface morphological transitions in tungsten–rhenium (25 atomic %) exposed to high-flux, 90 eV He plasma at ∼1173 K ...
Cuncai Fan +5 more
doaj +1 more source
Photo-Responsive Liquid Crystal Elastomer Coils Inspired by Tropism Movements of Plants
ActuatorsPlant tendrils exhibit intriguing tropism motions like bending, twisting, and coiling. Herein, we report the application of a liquid crystal elastomer (LCE) to make a light-sensitive and biomimetic coil to replicate behaviors of plant tendrils.
Xiyun Zhan +5 more
doaj +1 more source
Bulletin No. 18: Seaweeds of the Connecticut Shore: A Wader\u27s Guide [PDF]
, 1972 Illustrated guide to 60 different algae with keys to their identification.
Taylor, Sally L., Villalard, Martine
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