Results 111 to 120 of about 24,972 (270)

Interfacial Regulation–Driven Dual‐Enrichment SERS Coupled With Deep Learning Enable Ultrasensitive and In Situ Identification of Microplastics in Natural Waters

Small, EarlyView.
A membrane‐confined SERS platform constructs a dense network of vertical hotspots using PSS‐Na‐modified Au@Ag nanocubes for sensitive and reproducible microplastic detection in complex environmental water matrices. Coupled with an attention‐based 1D‐CNN, it enables accurate polymer identification and semi‐quantitative mixture prediction for intelligent
Chaochao Ma, Xiaojiao Zhao, Jiacheng Li, Xinyu Liu, Mingxu Zhang, Zhidan Liu, Jing Wu, Zhifeng Liu, Yunpeng Wang, Yang Li   +9 more
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, 大谷, 忠生, 柏, 達也   +2 more
core  

High‐Efficiency Generation of Vectorial Terahertz Beams via Surface‐Wave‐Excited Dielectric Metasurfaces

Small, EarlyView.
ABSTRACT Generating pre‐designed vectorial beams via on‐chip devices can yield many fascinating applications, but traditional diffraction‐based devices are bulky and inefficient. While plasmonic metasurfaces exhibit ultra‐compact sizes and deep‐subwavelength resolutions, their working efficiencies are limited by metallic losses.
Yu He, Yuanxi Liu, Yao Yao, Qingnan Cai, Dumeng Zhang, Xiangyu Jin, Shulin Sun, Zhuo Wang, Lei Zhou   +8 more
wiley   +1 more source

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  

Concurrent tunable structural color, luminescence, and afterglow in single ZnS: X@SiO2 spheres via SiO2‐nanoarmor and calcination decoupling collaborative strategy

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, Rou Meng, Shufen Zhang, Suli Wu   +3 more
wiley   +1 more source

Numerical modelling of photonic crystal based switching devices

, 2012
In the last few years research has identified Photonic Crystals (PhCs) as promising material that exhibits strong capability of controlling light propagation in a manner not previously possible with conventional optical devices.
Selim, Ramsey
core  

Structural, Compositional, and Dielectric State Profiling in Label‐Free Single‐Cell Monitoring

Small Methods, EarlyView.
Label‐free single‐cell monitoring leverages distinct physical interactions to access structural, compositional, and dielectric states of cells, enabling non‐perturbative, repeatable, and information‐rich measurements across diverse biological contexts. This review organizes representative platforms by intrinsic state variables and connects measurement ...
Changi Baek, Youngho Song, Seongcheol Park, Sujin Hyung, Sang Eun Yoon, Yong Jae Shin, Soo‐Yeon Cho   +6 more
wiley   +1 more source

DEVELOPING AN FDTD SIMULATION TOOL TO EVALUATE THE USE OF MAGNETIC INDUCTION ACROSS AN AIR-WATER INTERFACE

, 2020
Traditional underwater communication technology includes either the propagation of energy in the form of acoustic pressure waves or extremely low frequency electromagnetic radiation.
Watson, Mark C
core  

Strategic Spatial Segregation in Silicon Photoelectrodes: Decoupling Catalytic and Optical Functions for High‐Efficiency Solar Water Splitting

Small Structures, Volume 6, Issue 5, May 2025.
A novel spatial segregation strategy for silicon photoelectrodes is demonstrated, where catalyst wires surrounded by tapered microwires effectively decouple competing optical and catalytic requirements. This architectural innovation enables optimal light absorption and catalytic activity while maintaining efficient charge transport, achieving 96.5 ...
Soohyeok Park, Dongho Seo, Sangbeom Hong, Geonhwi Kim, Yejin Han, Inkyeong Park, Seongmin Lee, Min‐Joon Park, Ki Min Nam, Han‐Don Um   +9 more
wiley   +1 more source

Novel Research on a Finite-Difference Time-Domain Acceleration Algorithm Based on Distributed Cluster Graphic Process Units

Applied Sciences
In computational electromagnetics, the finite-difference time-domain (FDTD) method is recognized for its volumetric discretization approach. However, it can be computationally demanding when addressing large-scale electromagnetic problems.
Xinbo He, Shenggang Mu, Xudong Han, Bing Wei   +3 more
doaj   +1 more source