Results 21 to 30 of about 7,242 (307)
Buckling of Tapered Columns with Polygon Cross-Section [PDF]
Computational Engineering and Physical Modeling, 2018 This paper is concerned with the elastic stability of slender tapered columns of regular polygon cross-section with constant volume is presented. Various end conditions of the tapered columns such as pinned ends, clamped -pinned ends and clamped ends are
Magdy Salama
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Questions about the non-constructable polygon of Leon Battista Alberti
EGA, 2018 The process followed by Alberti when designing the façade of the Santa Maria Novella in Florence is well-known. This façade contains 48 ornamental elements which were created through the construction of regular polygons: 7 elements have a pentagonal base,
Albert Samper Sosa
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Nihon Kikai Gakkai ronbunshu, 2021 We propose the mechanism and control method of the air jet based parallel link actuator with 6 degrees of freedom. The rotor of the actuator is called a platform which is constructed by connecting multiple spheres that are located in vertex of a regular ...
Keiyu IWAYA +6 more
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Regularizing transformations of polygons
Journal of Geometry, 2017 We start with a generic n-gon \(Q_0\) with vertices \(q_{j,0}\) (\(j = 0, \dots , n-1\)) in the d-dimensional Euclidean space \({\mathbb {E}}^d\). Additionally, \(m+1\) real numbers \(u_0, \ldots , u_m \in {\mathbb {R}} \, (m < n)\) with \(\sum _{\mu = 0}^m u_\mu = 1\) are given. From these initial data we iteratively define generations of n-gons \(Q_k\
Johann Lang, Sybille Mick, Otto Röschel
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A Regular Quaternion Polygon [PDF]
Canadian Mathematical Bulletin, 1959 Repeated application of the unitary reflectionsto the point (1,0) and line x + iy = 1 yields 24 points and 24 lines. These are the vertices and edges of the regular complex polygon 4 {3} 4 whose group has the abstract definition R4 = I, RSR = SRS [l]. The purpose of this note is to introduce the notion of regular quaternion polygon and give an example ...
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SIAM Journal on Discrete Mathematics, 2017 In this paper we study various versions of extension complexity for polygons through the study of factorization ranks of their slack matrices. In particular, we develop a new asymptotic lower bound for their nonnegative rank, shortening the gap between the current bounds, we introduce a new upper bound for their boolean rank, deriving from it some new ...
Pedro M. Silva +2 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 An important high-precision building vector mapping method automatically delineates building polygons from high-resolution remote sensing images. Deep learning methods have greatly improved the accuracy of automatic building segmentation in remote ...
Jichong Yin, Fang Wu, Yuyang Qi
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Pattern Recognition, 2010 This paper describes a robust regular polygon detector. Given image edges, we derive the a posteriori probability for a mixture of regular polygons, and thus the probability density function for the appearance of a set of regular polygons. Likely regular polygons can be isolated quickly by discretising and collapsing the search space into three ...
Barnes, Nick, Loy, Gareth, Shaw, David
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A PROBLEM IN REGULAR POLYGONS [PDF]
School Science and Mathematics, 1918 n ...
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A note on affinely regular polygons [PDF]
European Journal of Combinatorics, 2009 The affinely regular polygons in certain planar sets are characterized. It is also shown that the obtained results apply to cyclotomic model sets and, additionally, have consequences in the discrete tomography of these sets.
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