Results 1 to 10 of about 14,604 (85)

Universal folding pathways of polyhedron nets [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
Significance What makes an object successful at thermal folding? Protein scientists study how sequence affects the pathways by which chained amino acids fold and the structures into which they fold. Here we investigate the inverse problem: Starting with a 3D object as a polyhedron we ask, which ones, among the many choices of 2D unfoldings ...
Paul M, Dodd   +2 more
openaire   +2 more sources

Fine structure of Tibetan kefir grains and their yeast distribution, diversity, and shift. [PDF]

open access: yesPLoS ONE, 2014
Tibetan kefir grains (TKGs), a kind of natural starter for fermented milk in Tibet, China, host various microorganisms of lactic acid bacteria, yeasts, and occasionally acetic acid bacteria in a polysaccharide/protein matrix.
Man Lu   +7 more
doaj   +1 more source

TEACHERS’ CHALLENGES IN TEACHING GEOMETRY USING AUGMENTED REALITY LEARNING MEDIA

open access: yesAksioma: Jurnal Program Studi Pendidikan Matematika, 2021
Abstrak Geometri berperan penting terhadap penguasaan matematika siswa. Dalam penerapannya, siswa masih terkendala dalam membayangkan suatu objek abstrak. Dibutuhkan suatu media pembelajaran yang tepat yang digunakan oleh guru dan mengikuti perkembangan
Gabriella Intan Permatasari   +1 more
doaj   +1 more source

Closed Locally Minimal Networks on the Surfaces of Convex Polyhedra

open access: yesМоделирование и анализ информационных систем, 2013
Closed locally minimal networks can be viewed as “branching” closed geodesics. We study such networks on the surfaces of convex polyhedra and discuss the problem of describing the set of all convex polyhedra that have such networks.
N. P. Strelkova
doaj   +1 more source

When can a net fold to a polyhedron?

open access: yesComputational Geometry, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Biedl, Therese, Lubiw, Anna, Sun, Julie
openaire   +2 more sources

Finding the optimal nets for self-folding Kirigami [PDF]

open access: yes, 2018
Three-dimensional shells can be synthesized from the spontaneous self-folding of two-dimensional templates of interconnected panels, called nets. However, some nets are more likely to self-fold into the desired shell under random movements.
Araújo, N. A. M.   +3 more
core   +3 more sources

Basic nets in the projective plane [PDF]

open access: yes, 2014
The notion of basic net (called also basic polyhedron) on $S^2$ plays a central role in Conway's approach to enumeration of knots and links in $S^3$. Drobotukhina applied this approach for links in $RP^3$ using basic nets on $RP^2$.
Orevkov, S. Yu.
core   +4 more sources

Crystal structure of poly[(N,N-dimethylacetamide-κO)(μ4-5-methylisophthalato-κ5O:O,O′:O′′:O′′′)manganese(II)]

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The title compound, poly[(N,N-dimethylacetamide-κO)(μ4-5-methylisophthalato-κ5O,O′:O′,O′′:O′′)manganese(II)], [Mn(C9H6O4)(C3H7NO)]n, was obtained from a mixture containing MnCl2·4H2O and 5-methylisophthalic acid in N,N-dimethylacetamide solution. The Mn2+
Lan Jin   +4 more
doaj   +1 more source

UNFOLDED REGULAR AND SEMI-REGULAR POLYHEDRA

open access: yesJournal of Industrial Design and Engineering Graphics, 2015
This paper proposes a presentation unfolding regular and semi-regular polyhedra. Regular polyhedra are convex polyhedra whose faces are regular and equal polygons, with the same number of sides, and whose polyhedral angles are also regular and equal ...
Elena Ionita   +2 more
doaj   +4 more sources

Elastic energy of polyhedral bilayer vesicles [PDF]

open access: yes, 2011
In recent experiments [M. Dubois, B. Dem\'e, T. Gulik-Krzywicki, J.-C. Dedieu, C. Vautrin, S. D\'esert, E. Perez, and T. Zemb, Nature (London) Vol. 411, 672 (2001)] the spontaneous formation of hollow bilayer vesicles with polyhedral symmetry has been ...
Christoph A. Haselwandter   +12 more
core   +3 more sources

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