Showing 161 - 180 results of 459 for search '"polyhedra"', query time: 0.08s Refine Results
  1. 161

    Knots in Art by Radmila Sazdanović, Ana Zeković, Ljiljana Radović, Slavik Jablan

    Published 2012-06-01
    “…We propose different methods for generating knots and links based on geometric polyhedra, suitable for applications in architecture and sculpture.…”
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    Article
  2. 162

    Polyhedral Graphs of GRAPH PARTITIONING and COMPLETE BIPARTITE SUBGRAPH Problems by A. I. Antonov, V. A. Bondarenko

    Published 2012-01-01
    “…<p>We provide an effective description of graphs of polyhedra for GRAPH PARTITIONING and COMPLETE BIPARTITE SUBGRAPH problems. …”
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    Article
  3. 163

    Continuous Flattening of a Regular Tetrahedron with Explicit Mappings by Jin-ichi Itoh, Chie Nara

    Published 2015-03-01
    “…We proved in [10] that each Platonic polyhedron P can be folded into a flat multilayered face of P by a continuous folding process of polyhedra. In this paper, we give explicit formulas of continuous functions for such a continuous flattening process in R³ for a regular tetrahedron.The article is published in the author’s wording.…”
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    Article
  4. 164

    Digital measurements of non-metallic inclusions in steel by Natalia A. Stukalova, Davronjon F. Kodirov, Valeriy I. Alekseev, Elina A. Sokolovskaya, Irina G. Rodionova

    Published 2024-03-01
    “…When representing the NMI as a set of random points on the plane, the distribution of distances between the nearest ones is estimated based on Voronoi polyhedra statistics. The study shows that an increase in the kurtosis coefficient of distributions of polyhedra areas is accompanied by an increase in the corrosion rate of the steels under study. …”
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    Article
  5. 165

    Positive and Negative Contribution from Lead–Oxygen Groups and Halogen Atoms to Birefringence: A First Principles Investigation by Can Deng, Jialong Wang, Mei Hu, Xiuhua Cui, Haiming Duan, Peng Li, Ming-Hsien Lee

    Published 2023-11-01
    “…The contribution of atoms and polyhedra to birefringence was further evaluated using the Born effective charge. …”
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    Article
  6. 166

    An orthorhombic polymorph of cerium(III) ultraphosphate, CeP5O14 by Jing Zhu, Wen-Dan Cheng, Hao Zhang

    Published 2008-11-01
    “…The structure contains (P5O14)3&#8722; anionic ribbons linked by distorted CeO8 polyhedra.…”
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    Article
  7. 167

    Delaunay Meshing of Piecewise Smooth Complexes without Expensive Predicates by Tamal K. Dey, Joshua A. Levine

    Published 2009-11-01
    “…Recently a Delaunay refinement algorithm has been proposed that can mesh piecewise smooth complexes which include polyhedra, smooth and piecewise smooth surfaces, and non-manifolds. …”
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    Article
  8. 168

    The first organically templated thorium compounds, [C4N2H12]0.5[ThF5] and [C5N2H14][ThF6].0.5H2O. by Kim, J, Norquist, A, O'Hare, D

    Published 2002
    “…Organically templated thorium compounds were synthesized for the first time under hydrothermal conditions; the piperazine containing compound consists of 2-D layers, while the 2-methylpiperazine phase contains unprecedented 1-D chains of face-sharing ThF9 polyhedra.…”
    Journal article
  9. 169

    A digital Jordan surface theorem with respect to a graph connectedness by Šlapal Josef

    Published 2023-12-01
    “…These are obtained as polyhedral surfaces bounding the polyhedra that can be face-to-face tiled with digital tetrahedra.…”
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    Article
  10. 170

    Complementarity and Preorganisation in the Assembly of Heterometallic–Organic Cages via the Metalloligand Approach—Recent Advances by Feng Li, Leonard F. Lindoy

    Published 2022-11-01
    “…The design of new metallocage polyhedra towards pre-determined structures can offer both practical as well as intellectual challenges. …”
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    Article
  11. 171

    Cation substitution and strain screening in framework structures: The role of rigid unit modes by Goodwin, A, Wells, SA, Dove, M

    Published 2006
    “…We show that the geometric stress associated with the substitution in these framework silicates is absorbed by rigid-unit type motion of those coordination polyhedra near the substitution site. We find that the inherent flexibility of these structures enables screening of geometric stress, such that the associated energy cost is minimal and unlikely to influence substitution patterns. © 2005 Elsevier B.V. …”
    Journal article
  12. 172

    Duality Between the Webs of Heterotic and Type II Vacua by Candelas, P, Font, A

    Published 1996
    “…We observe that perturbative symmetry restoration, as well as non-perturbative processes such as changes in the number of tensor multiplets, have at least in many cases a simple description in terms of the reflexive polyhedra of the Calabi-Yau manifolds. Our results suggest that to many, perhaps all, four-dimensional N=2 heterotic vacua there are corresponding type II vacua.…”
    Journal article
  13. 173

    From nanoscale heterogeneities to nanolites: cation clustering in glasses by Cormier, Laurent, Galoisy, Laurence, Lelong, Gérald, Calas, Georges

    Published 2023-04-01
    “…The structural characteristics of these Zr- or Fe-rich clusters are similar, as both are based on edge-sharing cation polyhedra. Cations may also occur in a network-forming position. …”
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    Article
  14. 174

    Changes of the slab structure of constitution scandate SrLaScO4 at the isovalent substitution of strontium atoms by Y.A.Titov, N.M. Belyavina, M.S.Slobodyanik, V.V.Chumak

    Published 2019-07-01
    “…Blocks are separated by the slab of (Sr, Ca, La)О9 polyhedra. Analysis of the obtained data has shown that, in a case of the substitution of Sr atoms by Ca atoms in SPS of Sr1–xCaxLaScO4, a gradual reduction of the length of the (Sr, Ca, La) — О2 interblock bond and the increases of the deformation degree (Δ) of interblock (Sr,Ca,La)О9 polyhedra and the mutual inclination of octahedrons ScO6 take place. …”
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    Article
  15. 175

    Terbium(III) hydrogendiphosphate(V) tetrahydrate by Michal Du&#353;ek, Brahim El Bali, Rachid Essehli, Karla Fejfarov&#225;

    Published 2008-02-01
    “…The Tb atom of the title compound, TbHP2O7&#183;4H2O, is coordinated by the O atoms of three symmetrically independent water molecules and by five O atoms belonging to HP2O7&#8722; groups. The TbO8 polyhedra are interconnected by the diphospate anions, forming a three-dimensional network which is additionally stabilized by O&#8212;H...O hydrogen bonding between water molecules and O atoms of the HP2O7&#8722; anions. …”
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    Article
  16. 176

    Ru11Lu20, a New Intermetallic Compound with Eight- to Ten-Coordinate Ruthenium Atoms by Sina Zimmermann, Ingo Pantenburg, Gerd Meyer

    Published 2012-06-01
    “…Ruthenium atoms center eight-, nine- and ten-vertex polyhedra of lutetium atoms which are connected in a complicated manner to a three-dimensional network.…”
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    Article
  17. 177

    Planetary Systems and the Hidden Symmetries of the Kepler Problem by József Cseh

    Published 2020-12-01
    “…He could not prove his expectation, inasmuch as the planetary orbits are not transformed into each other by the regular polyhedra. In 1989, Barut proposed another relation, which was inspired by the hidden symmetry of the Kepler problem. …”
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    Article
  18. 178

    Spatial Planning: A Configuration Space Approach by Lozano-Perez, Tomas

    Published 2004
    “…The paper presents algorithms for computing these Configuration Space obstacles when the objects and obstacles are polygons or polyhedra. An approximation technique for high-dimensional Configuration Space obstacles, based on projections of obstacles slices, is described.…”
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  19. 179

    Generating Semantic Descriptions From Drawings of Scenes With Shadows by Waltz, David L.

    Published 2004
    “…The computer programs involved look at scenes which consist of polyhedra and which may contain shadows and various kinds of coincidentally aligned scene features. …”
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  20. 180

    On the Monniaux Problem in abstract interpretation by Fijalkow, N, Lefaucheux, E, Ohlmann, P, Ouaknine, J, Pouly, A, Worrell, J

    Published 2019
    “…In this paper, we show that the Monniaux Problem is undecidable for unguarded affine programs and semilinear invariants (unions of polyhedra). Moreover, we show that decidability is recovered in the important special case of simple linear loops. …”
    Conference item