Results 1 to 10 of about 1,052,937 (118)

Far-field super-resolution chemical microscopy [PDF]

open access: yesLight: Science & Applications, 2023
Far-field chemical microscopy providing molecular electronic or vibrational fingerprint information opens a new window for the study of three-dimensional biological, material, and chemical systems.
Mingwei Tang   +4 more
doaj   +2 more sources

Real-Time Far-Field BCSDF Filtering [PDF]

open access: yesJournal of Imaging
The real-time rendering of large-scale curve-based surfaces (e.g., hair, fabrics) requires efficient handling of bidirectional curve-scattering distribution functions (BCSDFs).
Junjie Wei, Ying Song
doaj   +2 more sources

Over-the-Air Calibration of mmW Imaging Radars Using Uncorrelated Continuous Wave Signals

open access: yesIEEE Journal of Microwaves, 2023
Magnitude and phase variations of radio-frequency channels in multiple-input multiple-output imaging radars require an accurate calibration in order to reduce side-lobe levels in the radar image and thus counteract missed detections.
Simon Heining   +3 more
doaj   +1 more source

Hybrid Method for Inverse Elastic Obstacle Scattering Problems

open access: yesMathematics, 2023
The problem of determining the shape of an object from knowledge of the far-field of a single incident wave in two-dimensional elasticity was considered. We applied an iterative hybrid method to tackle this problem. An advantage of this method is that it
Yuhan Yin, Juan Liu
doaj   +1 more source

Sub-wavelength visualization of near-field scattering mode of plasmonic nano-cavity in the far-field

open access: yesNanophotonics, 2023
Spatial visualization of mode distribution of light scattering from plasmonic nanostructures is of vital importance for understanding the scattering mechanism and applications based on these plasmonic nanostructures. A long unanswered question in how the
Jin Xiao   +12 more
doaj   +1 more source

Soil–Structure Interaction Effects on Seismic Responses of a Conventional and Isolated Bridge Subjected to Moderate Near-Fault and Far-Field Records

open access: yesCivilEng, 2023
Seismic isolation is a powerful tool for mitigating seismic risk and improving structural performance. However, some parameters, such as earthquake inputs and soil characteristics, influence the technology’s performance. This research aims to investigate
Nastaran Cheshmehkaboodi   +2 more
doaj   +1 more source

Nonreciprocal Electromagnetic Wave Manipulation via a Single Reflection

open access: yesAdvanced Photonics Research, 2023
Electromagnetic field manipulation plays a key role in applications such as electron acceleration, nonlinear light–matter interaction, and radiation engineering.
Lu Wang
doaj   +1 more source

Selection of Ground Motion Intensity Measures in Fragility Analysis of a Mega-Scale Steel Frame Structure at Separate Limit States: A Case Study

open access: yesBuildings, 2022
Selecting an appropriate ground motion intensity measure (IM) to estimate the aleatory uncertainty produced by ground motion variability is the first and crucial step in fragility analysis. The choice of IM is influenced not only by the structural system
Yantai Zhang   +5 more
doaj   +1 more source

Spatially-Distributed RISs vs Relay-Assisted Systems: A Fair Comparison

open access: yesIEEE Open Journal of the Communications Society, 2021
This paper aims to make a comparison between decode-and-forward (DF) relays and reconfigurable intelligent surfaces (RISs) in the case where only one relay or RIS is selected based on the maximization of the signal-to-noise-ratio (SNR).
Jia Ye   +2 more
doaj   +1 more source

60% Efficient Monolithically Wavelength-Stabilized 970-nm DBR Broad-Area Lasers

open access: yesIEEE Photonics Journal, 2022
Progress in epitaxial design is shown to enable increased optical output power Popt and power conversion efficiency ηE and decreased lateral far-field divergence angle in GaAs-based distributed Bragg reflector (DBR) broad-area (BA) diode lasers ...
Paul Crump   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy