Results 91 to 100 of about 71,660 (280)
Quasi-Exact Coulomb Dynamics of n Charges n-1 of Which Are Equal
Advances in Mathematical Physics, 2017 For n≥3 point charges n-1 of which are negative and equal quasi-exact periodic solutions of their Coulomb equation of motion are found. These solutions describe a motion of the negative charges around a coordinate axis in such a way that their ...
Wolodymyr Skrypnik
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A NEW, EFFECTIVE METHOD FOR COMPUTING THE INTERACTION POTENTIAL OF HARD CYCLIC MULTIMER SYSTEMS
TASK Quarterly, 2015 Studies of efficiency of several methods for calculating the interaction potential of a pair of two-dimensional hard cyclic multimers – molecules formed by hard disks (atoms) placed at the vertices of a regular polygon – are reported in this work.
MIKOŁAJ BILSKI
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Advanced Science, EarlyView.The strengthened EMSI in Pd/CoN‐Co4N induces electronic rearrangement, generating abundant Pd0 species in situ, modulating the Pd d‐band center to enhance O2 adsorption and MEK activation. Concurrently, it creates numerous Lewis acid sites that preferentially adsorb poisons and shield the active sites.
Yadi Wang +7 more
wiley +1 more source
On nonexistence of an integer regular polygon [PDF]
In this paper we consider the question whether there is a regular polygon in the Cartesian coordinate system such that all of its coordinates are integers. We are not interested in the case of square since it is trivial.
D. Klobučar
core
Kazhdan-Lusztig cells in planar hyperbolic Coxeter groups and automata
Let C be a one- or two-sided Kazhdan--Lusztig cell in a Coxeter group (W,S), and let Reduced(C) denote the set of reduced expressions of all w in C, regarded as a language over the alphabet S. Casselman has conjectured that Reduced(C) is regular. In this
Belolipetsky, Mikhail +2 more
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On the Polynomials Orthogonal on Regular Polygons
Journal of Approximation Theory, 1999 The author studies the so called Pastro-Al Salam-Ismail polynomials [\textit{W. A. Al-Salam} and \textit{M. E. H. Ismail}, Proc. Am. Math. Soc. 121, 553-561 (1994; Zbl 0835.33011) and J. Math. Anal. Appl. 112, No. 2, 517-540 (1985; Zbl 0582.33010)]: polynomials biorthogonal on the unit circle with continuous weight function (under mild conditions ...
openaire +2 more sources
Advanced Science, EarlyView.A periosteum‐inspired Janus piezoelectric scaffold converts micromechanical forces into electrical signals and synergizes with controlled resveratrol release. This dual action reprograms endothelial metabolism, drives H‑type vessel formation, and restores bone–vessel coupling in diabetic bone defects.
Kai Wang, Kai Jiang
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The Geography of Success: A Spatial Analysis of Export Intensity in the Italian Wine Industry
Agribusiness, EarlyView.ABSTRACT This paper investigates the paradox of how Italy's fragmented, SME‐dominated wine industry achieves global export success. Moving beyond purely firm‐centric explanations, we test whether export intensity is spatially dependent, clustering geographically in regional ecosystems.
Nicolas Depetris Chauvin, Jonas Di Vita
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Automatic Determination of Quasicrystalline Patterns from Microscopy Images
Advanced Intelligent Discovery, EarlyView.This work introduces a user‐friendly machine learning tool to automatically extract and visualize quasicrystalline tiling patterns from atomically resolved microscopy images. It uses feature clustering, nearest‐neighbor analysis, and support vector machines. The method is broadly applicable to various quasicrystalline systems and is released as part of
Tano Kim Kender +2 more
wiley +1 more source
IEEE AccessThe current along a loop antenna is characterized by either a propagation constant ( $\alpha + j\beta $ ) or ( $\alpha - j\beta $ ). Understanding the impact of the propagation constant on the axial ratio is crucial for maintaining the performance of ...
Hisamatsu Nakano, Tomoki Abe
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