Results 61 to 70 of about 29,853 (260)

Matching Preclusion and Conditional Matching Preclusion Problems for Twisted Cubes [PDF]

open access: yes, 2010
The matching preclusion number of a graph is the minimum number of edges whose deletion results in a graph that has neither perfect matchings nor almost-perfect matchings. For many interconnection networks, the optimal sets are precisely those induced
Wang, Kevin   +4 more
core  

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Integer k-matching preclusion of graphs

open access: yes, 2023
As a generalization of matching preclusion number of a graph, we provide the (strong) integer $k$-matching preclusion number, abbreviated as $MP^{k}$ number ($SMP^{k}$ number), which is the minimum number of edges (vertices and edges) whose deletion ...
Liu, Yan, Chang, Caibing
core  

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer   +4 more
wiley   +1 more source

Almost linear decoder for optimal geometrically local quantum codes

open access: yesPhysical Review Research
Geometrically local quantum codes, which are error-correction codes embedded in R^{D} with checks acting only on qubits within a fixed spatial distance, have garnered significant interest.
Quinten Eggerickx   +4 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

The complexity of almost perfect matchings and other packing problems in uniform hypergraphs with high codegree

open access: yesEuropean Journal of Combinatorics, 2013
In this paper we prove that the problem of deciding whether a given k-uniform hypergraph H, with minimum (k-1)-wise vertex degree at least c|V(H)|, contains a matching missing exactly r vertices, that is, a set of disjoint edges of size (|V(H)|-r)/k, is NP-complete for c 1k and r>0 we provide a polynomial time algorithm for the corresponding search ...
openaire   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

open access: yesAdvanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari   +3 more
wiley   +1 more source

MATCHING PRECLUSION AND CONDITIONAL MATCHING PRECLUSION FOR AUGMENTED CUBES

open access: yes, 2010
The matching preclusion number of a graph is the minimum number of edges whose deletion results in a graph that has neither perfect matchings nor almost-perfect matchings.
RANDY JIA, DAVID LU, EDDIE CHENG
core   +1 more source

Assessment of Substrate Status of Drugs Metabolized by Polymorphic Cytochrome P450 (CYP) 2 Enzymes: An Analysis of a Large-Scale Dataset

open access: yesBiomedicines
Background: The analysis of substrates of polymorphic cytochrome P450 (CYP) enzymes is important information to enable drug–drug interactions (DDIs) analysis and the relevance of pharmacogenetics in this context in large datasets.
Jakob Sommer   +5 more
doaj   +1 more source

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