Results 31 to 40 of about 30,411 (268)

Seismic Numerical Simulation Based on Half-precision Floating-point Number Optimization and OpenMP

open access: yesCT Lilun yu yingyong yanjiu
Studying the propagation law of seismic wavefields is the basis of seismic exploration. The finite difference method is commonly used to solve the wave equation for seismic forward modeling, which has advantages of low memory usage, fast computation ...
Wenge LIU   +4 more
doaj   +1 more source

From Time-Collocated to Leapfrog Fundamental Schemes for ADI and CDI FDTD Methods

open access: yesAxioms, 2022
The leapfrog schemes have been developed for unconditionally stable alternating-direction implicit (ADI) finite-difference time-domain (FDTD) method, and recently the complying-divergence implicit (CDI) FDTD method.
Eng Leong Tan
doaj   +1 more source

1D Quantum Simulations of Electron Rescattering with Metallic Nanoblades

open access: yesInstruments, 2019
Electron rescattering has been well studied and simulated for cases with ponderomotive energies of the quasi-free electrons, derived from laser−gas and laser−surface interactions, lower than 50 eV.
Joshua Mann   +2 more
doaj   +1 more source

Novel structure of optical add/drop filters and multi-channel filter based on photonic crystal for using in optical telecommunication devices [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2019
In this paper, Using a 2D photonic crystal and a novel square ring resonator,several compact and simple structures have been introduced in the present paper toconstruct optical add/drop filters and multi-channel filter.
Vahid Fallahi, Mahmood Seifouri
doaj  

Optimizing FDTD Memory Bandwidth by Using Block Float-Point Arithmetic

open access: yesElektronika ir Elektrotechnika, 2018
Finite-difference time-domain is a numerical method used for modelling of computational electrodynamics. The method is resource intensive, especially regarding memory usage. Multiple memory accesses are required per single computation so memory bandwidth
Stefan Pijetlovic   +2 more
doaj   +1 more source

Modelling metallic discontinuities with the non-orthogonal finite difference time domain method [PDF]

open access: yes, 2004
Numerical electromagnetic models, such as the finite difference time domain (FDTD) method, have many applications. The authors focus on the non-orthogonal FDTD method, which offers an improved geometric flexibility compared to other standard techniques ...
Nilavalan, R, Railton, CJ, Craddock, IJ
core   +1 more source

Electromagnetic analysis of complex 3D PEC structures using a stabilised CPFDTD algorithm [PDF]

open access: yes, 1996
It has been shown that, with a simple modification, the contour path FDTD (CPFDTD) scheme can be stabilised while still being accurate for structures with a complex geometry containing tilted planes, smooth curved surfaces and right-angle bends. This has
Railton, CJ, Craddock, IJ
core   +1 more source

The treatment of thin wire and coaxial structures in lossless and lossy media in FDTD by the modification of assigned material parameters [PDF]

open access: yes, 2006
It has been shown recently that the use of modified assigned material parameters (MAMPs) within the finite-difference time-domain (FDTD) method provides a systematic, readily extensible, accurate, and efficient approach to the electromagnetic analysis of
Paul, DL, Dumanli, S, Railton, CJ
core   +1 more source

Membrane‐Bound Multimodal Plasmonic Transducers for Noninvasive, In Situ Monitoring and Control of CAR T Cells Against Heterogeneous Solid Tumors

open access: yesAdvanced Materials, EarlyView.
Membrane‐bound multimodal transducers enable longitudinal ultrasound‐guided photoacoustic monitoring and in situ thermal control of CAR T cells in heterogeneous solid tumors. Imaging correlates T cell trafficking with tumor response, distinguishing responders from nonresponders.
Myeongsoo Kim   +14 more
wiley   +1 more source

Perfectly Matched Layer for Accurate FDTD for Anisotropic Magnetized Plasma [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2020
In this work, we propose a stable perfectly matched layer (PML) for accurate finite-difference time-domain (FDTD) methods for analyzing electromagnetic wave propagation in the anisotropic magnetized plasma region.
Jeahoon Cho   +2 more
doaj   +1 more source

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