Results 121 to 130 of about 11,025,573 (223)
O m´etodo de diferenc¸as finitas no dom´ınio do tempo em eletromagnetismo [PDF]
, 2013 TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Matemática.Este trabalho tem como objetivo desenvolver um software, que denotamos por Software de ondas eletromagnéticas (SOEM), utilizando o ...
Luz, Rafael Luchi
core
Multispectral Mid‐Infrared Imaging With Incoherent Light via Adiabatic Upconversion
Laser &Photonics Reviews, EarlyView.We demonstrate room‐temperature broadband MIR imaging based on adiabatic frequency upconversion, driven by a Q‐switched pump laser and incoherent illumination. The small‐foot‐print system upconverts the spectral range to the visible domain, without scanning, thermal control and with spatial resolution below 20μm$20\mathrm{\mu}\mathrm{m}$.
Daniel Beitner +4 more
wiley +1 more source
High VoltagePhotovoltaic (PV) arrays are usually installed in open areas; hence, they are vulnerable to lightning strikes that can result in cell degradation, complete damage, service disruption, and increased maintenance costs.
Ibrahim Hetita +7 more
doaj +1 more source
RBF-FDTD Analysis of Lightning-Induced Voltages on Multi-Conductor Distribution Lines
EnergiesLightning-induced voltages on overhead distribution lines present a formidable obstacle to ensuring the reliability of power systems, evaluated through conventional numerical techniques, such as the Finite Difference Time Domain (FDTD) method and the ...
Duc-Quang Vu +2 more
doaj +1 more source
Binaural Simulations Using Audio Rate FDTD Schemes and CUDA [PDF]
, 2012 Three dimensional finite difference time domain schemes can be used as an approach to spatial audio simulation. By embedding a model of the human head in a 3D computational space, such simulations can emulate binaural sound localisation.
Webb, Craig, Bilbao, Stefan
core
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Ultra‐high field (≥ 7 T) and 3 T MRI suffer from B1+ inhomogeneity and signal loss. Conventional metasurfaces that mitigate B1+ inhomogeneity and improve image SNR are “fixed” in nature and designed for a single Larmor frequency. This study demonstrates the feasibility of an adaptive metasurface utilizing voltage‐controlled capacitors ...
Paul S. Jacobs +7 more
wiley +1 more source
Responsive Materials, EarlyView.This review summarizes CD‐based photocatalytic water splitting as a multiscale charge‐utilization process, linking photoexcitation, charge separation, interfacial transfer, charge storage, and catalytic consumption. It highlights how CD structures and interfaces regulate charge pathways and reaction microenvironments, and how advanced characterization,
Fan Liao, Yang Liu, Zhenhui Kang
wiley +1 more source
Numerical Dispersion Equation and Stability Condition of Three-Dimensional Nonstandard FDTD Method for Lossy Media [PDF]
, 2003 損失媒質用3次元Nonstandard FDTD(NS-FDTD)法の数値分散式及び安定条件を導出した.フェライト媒質を例に,3次元NS-FDTD法はFDTD法に比べ,優れた等方的伝搬特性と大きな安定条件をもつことを示す.journal ...
Kashiwa, Tatsuya +2 more
core
Smart Molecules, EarlyView.For the first time, tunable structural color, luminescence, and afterglow are integrated into single ZnS:X@SiO2 spheres via a SiO2‐nanoarmor and calcination decoupling strategy, achieving 250–410 nm monodisperse wurtzite spheres with 91% phase conversion, 12.8% PLQY, and 12.27 s afterglow. Abstract The integration of structural color, photoluminescence,
Tianyi Liu +3 more
wiley +1 more source
A Subgridding Technique for the Complex Nonstandard FDTD Method [PDF]
, 2004 本論文では2次元Complex Nonstandard FDTD(CNS-FDTD)法のためのサブグリッド法を提案した.CNS-FDTD法の特性を考慮し,空間補間,差分演算子補間及び時間補間を新たに導入した.本サブグリッド法の有効性を示すため,主グリッドと局所グリッドの接続に従来法の線形補間及び2次補間を用いた場合と比較した.この結果,本サブグリッド法は従来法に比べ安定性と精度に優れていることが分かった.更に,損失媒質装荷大型方形Cavityの散乱解析において ...
Taguchi, Kenji +4 more
core