Results 11 to 20 of about 1,256 (187)
PLoS Computational Biology, 2022 When two streams of pedestrians cross at an angle, striped patterns spontaneously emerge as a result of local pedestrian interactions. This clear case of self-organized pattern formation remains to be elucidated. In counterflows, with a crossing angle of
Pratik Mullick +5 more
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MERIA – Conflict Lines: Experience with Two Innovative Teaching Materials
Center for Educational Policy Studies Journal, 2022 The design of inquiry-based tasks and problem situations for daily mathematics teaching is still a challenge. In this article, we study the implementation of two tasks as part of didactic scenarios for inquiry-based mathematics teaching, examining ...
Željka Milin Šipuš +4 more
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Acoustic suppressed topological refraction in valley sonic crystals
New Journal of Physics, 2022 We report both experimentally and numerically that an acoustic suppressed topological refraction is realized by two kagome-lattice valley sonic crystals (VSCs).
Bing-bing Wang +4 more
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Points and Lines Configurations for Perpendicular Bisectors of Convex Cyclic Polygons
The Electronic Journal of Combinatorics, 2022 We characterize the topological configurations of points and lines that may arise when placing $n$ points on a circle and drawing the $n$ perpendicular bisectors of the sides of the corresponding convex cyclic $n$-gon. We also provide exact and asymptotic formulas describing a random realizable configuration, obtained either by sampling the points ...
Paul Melotti +2 more
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Correlation of Beta Angle with Antero-Posterior Dysplasia Indicators and FMA: An Institution Based Cephalometric Study [PDF]
Journal of Clinical and Diagnostic Research, 2016 Introduction: Beta angle utilizes three skeletal landmarks – point A, point B, and point C (the apparent axis of the condyle). It is formed between A-B line and point A perpendicular to C-B line.
Gurinder Singh +4 more
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Applied Sciences, 2020 This paper presents a measurement method for high-precision cutting edge radius of single point diamond tools using an atomic force microscope (AFM) and a reverse cutting edge artifact based on the edge reversal method.
Kai Zhang +4 more
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Computational analysis of vibrational spectrum and hydrogen bonds of ice XVII
New Journal of Physics, 2019 Based on first-principles density functional theory, we investigated the relationship between the vibrational normal modes and the spectrum of the newest laboratory-prepared ice phase, an empty clathrate hydrate structure from gas hydrate named ice XVII.
Xu-Liang Zhu +9 more
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A Novel Centroid Localization for Wireless Sensor Networks
International Journal of Distributed Sensor Networks, 2012 Self-localization of sensor nodes is one of the key issues in wireless sensor networks. Based on the analysis of traditional range-free algorithms such as centroid and APIT (approximate perfect point in triangulation test) schemes, the effect of random ...
Yu Liu, Xiao Yi, You He
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Geofluids, 2020 Based on the experimental results of an intact rock specimen under uniaxial compression, particle flow code (PFC2D) was adopted to carry out a discrete element modeling (DEM) for the mechanical behavior of heterogeneous rocks containing X-shaped fissures
Ming Chen +6 more
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On distinct perpendicular bisectors and pinned distances in finite fields
Finite Fields and Their Applications, 2016 Given a set of points $P \subset \mathbb F_q^2$ such that $|P|\geq q^{3/2}$ it is established that $|P|$ determines $Ω(q^2)$ distinct perpendicular bisectors. It is also proven that, if $|P| \geq q^{4/3}$, then for a positive proportion of points $a \in P$, we have $$|\{\| a- b\|: b \in P\}|=Ω(q),$$ where $\|a- b\|$ is the distance between points $a ...
Brandon Hanson +2 more
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