Results 51 to 60 of about 30,440 (315)

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao   +3 more
wiley   +1 more source

Bipartite Euler systems [PDF]

open access: yesJournal fur die reine und angewandte Mathematik (Crelles Journal), 2006
If E is an elliptic curve over Q and K is an imaginary quadratic field, there is an Iwasawa main conjecture predicting the behavior of the Selmer group of E over the anticyclotomic Z_p-extension of K. The main conjecture takes different forms depending on the sign of the functional equation of L(E/K,s). In the present work we combine ideas of Bertolini
openaire   +3 more sources

Proceedings of the 3rd International Workshop on Euler Diagrams (Euler Diagrams 2012) [PDF]

open access: yes, 2012
The 3rd International Workshop on Euler Diagrams (Euler Diagrams 2012) was held in Canterbury, UK on 2nd July 2012 in conjunction with the 7th International Conference on the Theory and Application of Diagrams (Diagrams 2012). Euler diagrams represent
Micallef, Luana
core  

Drawing Euler Diagrams with Circles: The Theory of Piercings [PDF]

open access: yes, 2010
Euler diagrams are effective tools for visualizing set intersections. They have a large number of application areas ranging from statistical data analysis to software engineering.
Howse, John   +8 more
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Real-space approach for the Euler class and fragile topology in quasicrystals and amorphous lattices

open access: yesSciPost Physics
We propose a real-space formalism of the topological Euler class, which characterizes the fragile topology of two-dimensional systems with real wave functions.
Dexin Li, Citian Wang, Huaqing Huang
doaj   +1 more source

A new spectral invariant for quantum graphs

open access: yesScientific Reports, 2021
The Euler characteristic i.e., the difference between the number of vertices |V| and edges |E| is the most important topological characteristic of a graph.
Michał Ławniczak   +5 more
doaj   +1 more source

Sampled-Data Consensus of Networked Euler-Lagrange Systems: A Discrete Small-Gain Approach

open access: yesIEEE Access, 2021
This paper studies the sampled-data consensus of networked Euler-Lagrange systems. The sampled-data feedback causes infinities at sampling instants in the control input due to the differentiation of the feedback by the conventional control law designed ...
Yilin Wang   +4 more
doaj   +1 more source

Circular Distributions and Euler Systems

open access: yesJournal of Number Theory, 2001
This article is based on the following observation: Euler systems provide bounds on class groups of real cyclotomic fields. Due to the analytic class number formula, the bounds provided by (Euler systems of) cyclotomic units are already best possible, so in a sense to be made precise, every Euler system has already to be cyclotomic. The exact statement
openaire   +1 more source

Abstract Euler Diagram Isomorphism [PDF]

open access: yes, 2008
Euler diagrams are widely used for information visualization and form the basis of a variety of formal languages that are used to express constraints in computing.
Andrew Fish   +6 more
core  

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