Results 141 to 150 of about 97,390 (311)

Finite-Difference Time-Domain Simulation Of Low-F# Fresnel Zone Plates Coupled To Ir Antennas

open access: yes, 2004
Fresnel Zone Plate Lenses (FZPLs) have been successfully coupled to infrared (IR) antennas producing a responsivity enhancement of about two orders of magnitude.
Boreman, Glenn   +7 more
core   +1 more source

Absorption and scattering properties of gold nanotubes with an offset core

open access: yes四川大学学报. 自然科学版, 2018
The effects of core offset, dielectric constants of core and embedding medium as well as incident light direction on the absorption and scattering properties of gold nanotubes with a nonconcentric core are theoretically studied by the finite difference ...
ZHANG Xing-Fang   +3 more
doaj  

Controlled Engineering of 2D Alkali‐Iron‐Chloride Compounds and Lateral Quantum Heterostructures Within Confined Graphene Nanoreactors

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a programmable atomic engineering strategy for 2D materials using Å‐scale nanoreactors formed by bilayer graphene (BLG) intercalation. A new class of alkali‐iron‐chloride compounds, along with lateral heterostructures composed of monolayer alkali halides and iron chlorides, is revealed.
Haiming Sun   +6 more
wiley   +1 more source

Numerical Artifacts In Finite-Difference Time-Domain Algorithms Analyzed By Means Of Principal Components

open access: yes, 2005
Finite-difference time-domain (FDTD) algorithms are affected by numerical artifacts and noise. In order to obtain better results we propose the use of the principal component analysis based on multivariate statistical techniques.
López Alonso, José Manuel   +5 more
core   +1 more source

Optical properties of elliptical gold nanotubes with a nonconcentric core

open access: yes四川大学学报. 自然科学版, 2018
Based on the finite difference time domain method, the effects of geometrical parameters, refractive indices of core and embedding medium and polarization directions of incident light on the optical properties of elliptical gold nanotubes with a ...
ZHANG Xing-Fang   +4 more
doaj  

Finite difference time domain discretization for room acoustic simulation based on the non-linear Euler equations

open access: yesActa Acustica
In comparison to geometric acoustics, wave-based simulation techniques in the time domain have a much higher degree of accuracy. Latest modeling techniques like immersed boundaries reduce modeling effort significantly.
Hölter Arne   +2 more
doaj   +1 more source

Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses

open access: yesAdvanced Functional Materials, EarlyView.
By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso   +4 more
wiley   +1 more source

Construction and Optimization Techniques for High Order Schemes for the Two-dimensional Wave Equation

open access: yes, 2013
With the advent of high performance parallel computing, audio rate room auralization using finite difference time domain methods is becoming possible in a reasonable computation time. Yet, there are still deficiencies in the methods which are used for this
Stefan Bilbao   +3 more
core   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Dispersion of Homogeneous and Inhomogeneous Waves in the

open access: yes, 2007
The numerical dispersion relation governing the propagation of homogeneous plane waves in a finite-difference time-domain (FDTD) grid is well known.
John B. Schneider (corresponding   +2 more
core  

Home - About - Disclaimer - Privacy