Results 71 to 80 of about 79,019 (293)
Estimation of minimum volume of bounding box for geometrical metrology
International Journal of Metrology and Quality Engineering, 2020 This paper presents algorithms for estimating the minimum volume bounding box based on a three-dimensional point set measured by a coordinate measuring machine. A new algorithm, which calculates the minimum volume with high accuracy and reduced number of
Chelishchev Petr, Sørby Knut
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Lower algebraic K-theory of certain reflection groups
, 2009 For a finite volume geodesic polyhedron P in hyperbolic 3-space, with the property that all interior angles between incident faces are integral submultiples of Pi, there is a naturally associated Coxeter group generated by reflections in the faces ...
Bass +13 more
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Zeolitic Imidazolate Framework 67-Derived Ce-Doped CoP@N-Doped Carbon Hollow Polyhedron as High-Performance Anodes for Lithium-Ion Batteries [PDF]
, 2022 Yanjun Zhai +7 more
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High‐κ Perovskite‐Like Ternary Niobium Oxide Dielectrics for 2D Electronics
Advanced Materials, EarlyView.High‐κ dielectrics are vital for scaled electronics. Here, a family of 2D high‐κ perovskite‐like ternary niobium oxides is synthesized via a molten salt‐assisted method. Their integration into FETs and logic gates reveals superior switching characteristics, providing a fresh material platform and new insights for the advancement of high‐performance 2D ...
Biao Zhang +10 more
wiley +1 more source
Research on the Fabrication of Polyhedral Carbon Nanostructures Using SB3‐12
Engineering ReportsThe research field focused on regulating the morphology and dimensions of carbon nanostructures is experiencing steady advancement. This paper proposes a low‐cost, simple, and easy‐to‐operate experimental method involving confined in situ carbonization ...
Jianxia Guo, Haichao Li, Xiaofei Kang
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Poly[bis(μ-2-amino-4-nitrobenzoato)di-μ-aqua-dirubidium]
Acta Crystallographica Section E, 2014 In the structure of the title salt, [Rb2(C7H5N2O4)2(H2O)2]n, the asymmetric unit comprises two independent and different seven-coordinate Rb+ cations, one forming an RbO7 polyhedron, the other a RbO6N polyhedron, each of which is considerably distorted ...
Graham Smith
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Coding and Compression of Three Dimensional Meshes by Planes [PDF]
, 2013 The present paper suggests a new approach for geometric representation of 3D spatial models and provides a new compression algorithm for 3D meshes, which is based on mathematical theory of convex geometry.
Aramyan, Rafik +2 more
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The spectrum of the Laplacian in a domain bounded by a flexible polyhedron in $$\mathbb R^d$$ does not always remain unaltered during the flex [PDF]
, 2020 Victor Alexandrov
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Advanced Materials Interfaces, EarlyView.A superior double‐cladding optical fiber temperature sensor (OFTS) is fabricated by utilizing a bright and stable near‐pure green UC phosphor NaLu(WO4)2:Er3+/Yb3+ as sensing material. The OFTS exhibits a high temperature measurement accuracy of 0.155°C at 303 K, excellent measuring repeatability and chemical stability, along with strong resistance to ...
Jing Lyu +4 more
wiley +1 more source
Dehn invariant of flexible polyhedra
, 2017 We prove that the Dehn invariant of any flexible polyhedron in Euclidean space of dimension greater than or equal to 3 is constant during the flexion. In dimensions 3 and 4 this implies that any flexible polyhedron remains scissors congruent to itself ...
Gaifullin, Alexander A. +1 more
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