Results 41 to 50 of about 96,122 (257)
Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Singularities of Euler flow? Not out of the blue! [PDF]
, 2002 Does three-dimensional incompressible Euler flow with smooth initial conditions develop a singularity with infinite vorticity after a finite time? This blowup problem is still open.
Bec, J., Frisch, U., Matsumoto, T.
core
Infrared absorption and Raman scattering on coupled plasmon--phonon modes in superlattices
, 2005 We consider theoretically a superlattice formed by thin conducting layers separated spatially between insulating layers. The dispersion of two coupled phonon-plasmon modes of the system is analyzed by using Maxwell's equations, with the influence of ...
A. Mooradian +10 more
core +1 more source
Topological Signals of Singularities in Ricci Flow [PDF]
, 2017 We implement methods from computational homology to obtain a topological signal of singularity formation in a selection of geometries evolved numerically by Ricci flow.
Alsing, Paul M. +6 more
core +4 more sources
Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures
Advanced Engineering Materials, EarlyView.This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley +1 more source
Taming singularities and chaos in conformal gravity
European Physical Journal C: Particles and FieldsWe hereby address the cosmological singularity problem in a general gravitational theory invariant under Weyl conformal transformations. In particular, we focus on the Bianchi IX spacetime and we show that both the initial (big bang) and final (big ...
Jiale Gu, Leonardo Modesto, Cosimo Bambi
doaj +1 more source
Journal of Mathematical Analysis and Applications, 1993 The paper deals with the existence of positive continuously differentiable solutions for the problems: a) \(y''=f(x,y,y ...
openaire +2 more sources
A Topology Optimization Framework for the Inverse Design of Nonlinear Mechanical Metamaterials
Advanced Engineering Materials, EarlyView.This work uses topology optimization to design unit cells for mechanical metamaterials with a prescribed nonlinear stress–strain response. The framework adds contact and postbuckling modeling to synthesize microstructures for three highly nonlinear responses, including pseudoductile behavior, monostable with snap‐through buckling, and bistable ...
Charlie Aveline +2 more
wiley +1 more source
A Note on the Reality of Incomputable Real Numbers and Its Systemic Significance
Systems, 2021 We discuss mathematical and physical arguments contrasting continuous and discrete, limitless discretization as arbitrary granularity. In this regard, we focus on Incomputable (lacking an algorithm that computes in finite time) Real Numbers (IRNs).
Gianfranco Minati
doaj +1 more source
On the vanishing of negative K-groups
, 2009 Let k be an infinite perfect field of positive characteristic p and assume that strong resolution of singularities holds over k. We prove that, if X is a d-dimensional noetherian scheme whose underlying reduced scheme is essentially of finite type over ...
C. Haesemeyer +15 more
core +1 more source