Results 121 to 130 of about 79,734 (334)
Advanced Engineering Materials, EarlyView.This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira +4 more
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Rigidity of hypersurfaces of constant scalar curvature [PDF]
Journal of Differential Geometry, 1970 Es werden Starrheitsfragen für isometrische Immersionen einer \(n\)-dimensionalen Riemannschen Mannigfaltigkeit \(M^n\) in eine \((n + 1)\)-dimensionale Raumform \(\tilde M^{n+1}(K)\) der Krümmung \(K\) behandelt. Dabei heißt \(M^n\) starr in \(M^{n+1}(K)\), wenn es zu jedem Paar \(f\), \(\tilde f\) isometrischer Immersionen von \(M^n\) in \(\tilde M ...
openaire +5 more sources
A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions
Advanced Engineering Materials, EarlyView.This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice +2 more
wiley +1 more source
D-Homothetically Deformed Kenmotsu Metric as a Ricci Soliton
Annales Mathematicae Silesianae, 2019 In this paper we study the nature of Ricci solitons in D-homo-thetically deformed Kenmotsu manifolds. We prove that η -Einstein Kenmotsu metric as a Ricci soliton remains η -Einstein under D-homothetic deformation and the scalar curvature remains ...
Kumar D.L. Kiran, Nagaraja H.G., Venu K.
doaj +1 more source
A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection
Advanced Engineering Materials, EarlyView.A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan +9 more
wiley +1 more source
Infrared logarithms in minisuperspace inflation
Physics Letters B, 2018 We examine the emergence of the infrared logarithms in the cosmological perturbation theory applied to the minisuperspace scalar slow-roll inflation. Not surprisingly, in the single scalar field model the curvature perturbation ζ is conserved and no ln ...
Ali Kaya
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Relations between the scalar curvatures of submanifolds with constant curvature
Communications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1993 Summary: The relations between the scalar curvatures of an \(n\)-dimensional submanifold (hypersurface) \(N\), with zero curvature immersed in an \((n+1)\)-dimensional submanifold \(\overline N\) with zero curvature in \(E^m\) \((m>n+1)\), are investigated and some results are obtained in terms of scalar, Gaussian and mean curvatures of the ...
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Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies
Advanced Engineering Materials, EarlyView.Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo +3 more
wiley +1 more source
Ordinary differential equations in affine geometry
Le Matematiche, 1996 The method of qualitative analysis is used, as applied to a class of fourth order, nonlinear ordinary differential equations, in order to classify, both locally and globally, two classes of hypersurfaces of decomposable type in affine geometry: those ...
Salvador Gigena
doaj
European Physical Journal C: Particles and Fields, 2019 We examine the strong cosmic censorship in the Reissner–Nordstrom–de Sitter (RN-dS) black hole by investigating the evolution of a scalar field non-minimally coupled to the curvature. We find that for the stable RN-dS black hole, with the increase of the
Hong Guo +3 more
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