Results 91 to 100 of about 2,195,689 (342)
, 2015 In this paper, we show the evaluation of the spectral radius for node degree as the basis to analyze the variation in the node degrees during the evolution of scale-free networks and small-world networks.
Meghanathan, Natarajan
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On the packing radius and the covering radius of equal-weight codes
Discrete Mathematics, 2000 The authors find the exact value of the packing radius of a well-known equal-weight code. They give the upper and lower bounds for this code's covering radius. Also the aspect of constructivity and complexity is discussed. In particular, the authors describe an efficient (polynomial) procedure that finds for each word of weight \(k\) (= the weight of ...
Stephen D. Cohen, Nikolai N. Kuzjurin
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Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control
Advanced Engineering Materials, EarlyView.This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian +4 more
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Eclipse radius measurements [PDF]
Methods for predicting the path edges and reducing observations of total solar eclipses for determining variations of the solar radius are described. Analyzed observations of the 1925 January eclipse show a 0.7 (arc second) decrease in the solar radius ...
Dunham, D. W. +3 more
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Advanced Engineering Materials, EarlyView.Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
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Euclidean operator radius and numerical radius inequalities
Operators and MatricesLet $T$ be a bounded linear operator on a complex Hilbert space $\mathscr{H}.$ We obtain various lower and upper bounds for the numerical radius of $T$ by developing the Euclidean operator radius bounds of a pair of operators, which are stronger than the existing ones. In particular, we develop an inequality that improves on the inequality $$ w(T) \geq
Jana, Suvendu +2 more
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On the spectral radius of trees
Linear Algebra and its Applications, 2001 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tan Shang Wang, Guo Ji Ming
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Advanced Engineering Materials, EarlyView.This study demonstrates a novel, additive manufacturing approach to produce complex, porous tungsten carbide structures using water‐based direct ink writing/robocasting. Leveraging a modified commercial printer and heat treatment, the process yields lightweight, electrically conductive 3D architectures capable of supporting a mechanical load.
James Bentley Bevis +3 more
wiley +1 more source
The Effect of Corotation on the Radial Gradient of Metallicity of Spiral Galaxies
, 2010 The corotation radius in a spiral galaxy is the radius where the spiral pattern speed has the same velocity of the rotation curve. By compiling results from the literature for 20 spiral galaxies we verified a strong correlation between the radius of the ...
Lepine, J. R. D., Scarano Jr., S.
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Dadagulella radius var. radius radius (Preston 1910, comb. nov.
, 2013 Dadagulella radius radius (Preston, 1910) comb. nov. Figs 1-5, 9-20, 43-45, 52-53, 65, 69, 73, 77-78, 83-84; Table 1 Ennea radius Preston, 1910: 529, pl. VII, fig. 8. Gulella radius – Verdcourt 1962: 13, 17,? not 22 (see D. radius calva below). — van Bruggen 1969: 71. — Verdcourt 1983: 234; 1985: 119, fig. 17; 1996: 136. — Tattersfield 1998a: 83; 1998b:
Rowson, Ben, Tattersfield, Peter
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