Results 71 to 80 of about 879,303 (290)
Symplectic And Lie Algebraic Techniques
, 2007 We will show the usefulness of the tools of Symplectic and Presymplectic Geometry and the corresponding Lie algebraic methods in different problems in Geometric ...
In Geometric Optics
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Advanced Engineering Materials, EarlyView.Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik +9 more
wiley +1 more source
Evolution and Conceptual Insights into the Geometric Phase of Light: A Comprehensive Review
Advanced Photonics ResearchThe geometric phase of light is a fundamental and fascinating phenomenon in optics, associated with the evolution of various parameters of light, such as polarization, propagation direction, and phase.
A. Srinivasa Rao
doaj +1 more source
Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source
Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading
Advanced Engineering Materials, EarlyView.This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev +2 more
wiley +1 more source
Accuracy of Stereo Endoscope Calibrations for Forward and Oblique Optics
Current Directions in Biomedical EngineeringAccurate geometric calibration is a prerequisite for metric 3D reconstruction from stereo endoscopes, but practical deployment is complicated by non-standard optics (e.g., angled views), strong lens distortion, and clinically realistic image artifacts ...
Kienle Linus L. +5 more
doaj +1 more source
About nonlinear geometric optics
, 2005 We give an idea of the evolution of mathematical nonlinear geometric optics from its foundation by Lax in 1957, and present applications in various fields of mathematics and ...
Dumas, Eric
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Advanced Engineering Materials, EarlyView.Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley +1 more source
A simple model of spiral galaxies from geometric optics
AIP AdvancesWe propose a simple model of spiral galaxies based on the interference of gravitational waves. The interference is deduced from geometric optics analysis of the refractive index profiles that mimic the behavior of gravitational potentials −1/r and r2. We
Bogdan Szafraniec, James N. Blake
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Analytic Physical Optics Solution to Bistatic 3D Scattering From Separated Dihedral
IEEE Access, 2018 Constructing the mapping between the geometric object and its corresponding 3D scattering response is a fundamental but challenging task in the domain of electromagnetic scattering, which is crucial for radar target recognition and the 3D structure ...
Xinkui Wang +3 more
doaj +1 more source