Results 61 to 70 of about 206,413 (341)
Bending crystals: Emergence of fractal dislocation structures
, 2010 We provide a minimal continuum model for mesoscale plasticity, explaining the cellular dislocation structures observed in deformed crystals. Our dislocation density tensor evolves from random, smooth initial conditions to form self-similar structures ...
James P. Sethna +4 more
core +1 more source
Multiscale Finite Element Modeling of Nonlinear Magnetoquasistatic Problems Using Magnetic Induction Conforming Formulations [PDF]
, 2017 In this paper we develop magnetic induction conforming multiscale formulations for magnetoquasistatic problems involving periodic materials. The formulations are derived using the periodic homogenization theory and applied within a heterogeneous ...
Dular, Patrick +4 more
core +1 more source
Sugar, gravel, fish and flowers: Mesoscale cloud patterns in the trade winds
Quarterly Journal of the Royal Meteorological Society, 2019 An activity designed to characterise patterns of mesoscale (20 to 2,000 km) organisation of shallow clouds in the downstream trades is described. Patterns of mesoscale organisation observed from space were subjectively defined and learned by 12 trained ...
B. Stevens +12 more
semanticscholar +1 more source
Powder-Based 3D Printing for the Fabrication of Device with Micro and Mesoscale Features
Micromachines, 2020 Customized manufacturing of a miniaturized device with micro and mesoscale features is a key requirement of mechanical, electrical, electronic and medical devices.
S. Chin +3 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories
Advanced Engineering Materials, EarlyView.A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi +3 more
wiley +1 more source
Studying geometric structures in meso-scale flows
Frontiers in Environmental Science, 2014 Geometric shapes of coherent structures such as ramp or cliff like signals, step changes and waves, are commonly observed in meteorological temporal series and dominate the turbulent energy and mass exchange between the atmospheric surface layer and the ...
Christos H. Halios +2 more
doaj +1 more source
Electronic Mechanism of Superconductivity in the Cuprates, C$_{60}$, and Polyacenes
, 2000 On the basis of an analysis of theoretical and numerical studies of model systems, and of experiments on superconductivity in doped C$_{60}$, polyacenes, and the cuprate high temperature superconductors, we propose that a purely electronic mechanism of ...
Chakravarty, Sudip, Kivelson, Steven A.
core +1 more source
Multiscale Design for Solid Freeform Fabrication [PDF]
, 2007 One of the advantages of solid freeform fabrication is the ability to fabricate complex structures on multiple scales, from the macroscale features of an overall part to the mesoscale topology of its internal architecture and even the microstructure or
Madhavan, Kaarthic +2 more
core +1 more source
Influence of cracks on chloride diffusivity in concrete: A five-phase mesoscale model approach
Construction and Building Materials, 2019 This paper presents a mesoscale numerical approach to investigate the chloride diffusivity in cracked concrete. Concrete is treated as a five-phase material, including cement paste, aggregate, interfacial transition zone (ITZ), crack, and damaged zone ...
Jianxin Peng +4 more
semanticscholar +1 more source