Results 81 to 90 of about 694,974 (290)
The number of edges of radius-invariant graphs
Mathematica Slovaca, 2009 Abstract The eccentricity e(υ) of vertex υ is defined as a distance to a farthest vertex from υ. The radius of a graph G is defined as r(G) = $$ \mathop {\min }\limits_{u \in V(G)} $$ {e(u)}. We consider properties of unchanging the radius of a graph under two different situations: deleting an arbitrary edge and deleting an arbitrary ...
openaire +1 more source
Advanced Engineering Materials, EarlyView.This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert +7 more
wiley +1 more source
Effects of Leading Edge Radius on Stall Characteristics of Rotor Airfoil
AerospaceThe effects of leading edge radius on the static and dynamic stall characteristics of rotor airfoils are investigated. Initially, a parametric airfoil (PARFOIL) method is employed to generate four morphed airfoils with different leading edge radii based ...
Simeng Jing +3 more
doaj +1 more source
RESEARCH ON MODELING METHOD OF EQUIVALENT TURNING FORCE MODEL (MT)
Jixie qiangdu, 2023 In view of the low accuracy of cutting force prediction caused by the difficulty of considering the tip arc radius, the main cutting edge arc radius and the tool working angle in the traditional turning force prediction model, an equivalent turning force
WU MingZhou +3 more
doaj
Trapping of Low-Mass Planets Outside the Truncated Inner Edges of Protoplanetary Discs
, 2017 We investigate the migration of a low-mass ($\lesssim 10 M_\oplus$) planet near the inner edge of a protoplanetary disc using two-dimensional viscous hydrodynamics simulations. We employ an inner boundary condition representing the truncation of the disc
Lai, Dong, Miranda, Ryan
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Advanced Engineering Materials, EarlyView.Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De +3 more
wiley +1 more source
The maximal spectral radius of a digraph with (m+1)^2 - s edges
, 2003 It is known that the spectral radius of a digraph with k edges is \le \sqrt{k}, and that this inequality is strict except when k is a perfect square. For k=m^2 + \ell, \ell fixed, m large, Friedland showed that the optimal digraph is obtained from the ...
Snellman, Jan
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Advanced Engineering Materials, EarlyView.The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner +22 more
wiley +1 more source
Reliability of Cutting Edge Radius Estimator Based on Chip Production Rate for Micro End Milling
Journal of Manufacturing and Materials Processing, 2019 In this paper, the reliability of a new online cutting edge radius estimator for micro end milling is evaluated. This estimator predicts the cutting edge radius by detecting the drop in the chip production rate as the cutting edge of a micro end mill ...
Jue-Hyun Lee, Angela A. Sodemann
doaj +1 more source
Tessellations of hyperbolic surfaces [PDF]
, 2011 A finite subset S of a closed hyperbolic surface F canonically determines a "centered dual decomposition" of F: a cell structure with vertex set S, geodesic edges, and 2-cells that are unions of the corresponding Delaunay polygons.
DeBlois, Jason
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