Results 41 to 50 of about 34,661 (217)

Sparse Autoencoder Based Manifold Analyzer Model of Multi-Angle Target Feature

IEEE Access, 2020
Automatic target recognition (ATR) has always been an important research topic, and the performance is affected by feature extraction. High-resolution range profiles (HRRP) contains structural information of target from different angles.
Xiuyuan Chen, Xiyuan Peng, Jun-Bao Li, Chaoying Huo   +3 more
doaj   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh, Bharti Garg, Maximilian Black, Masoud Taleb, Nahid Talebi   +4 more
wiley   +1 more source

A Fast Hidden Surface Removal Approach for Complex SAR Scene Based on Adaptive Ray-tube Splitting Method

Leida xuebao, 2012
Traditional hidden surface removal algorithm based on hardware Z-Buffer technique cannot give attention to precision or efficiency at the same time when dealing with the non-uniform triangulated SAR scene model.
Dong Chun-zhu, Yin Hong-cheng, Wang Chao
doaj   +1 more source

Study of the Radar Cross-Section of Turbofan Engine with Biaxial Multirotor Based on Dynamic Scattering Method

Energies, 2020
With the continuous advancement of rotor dynamic electromagnetic scattering research, the radar cross-section (RCS) of turbofan engines has attracted more and more attention.
Zeyang Zhou, Jun Huang
doaj   +1 more source

Investigate the scattering of electromagnetic waves from lanthanide nanoparticles by changing the size and shape of nanoparticles

Tikrit Journal of Pure Science, 2021
The aim of this study was to evaluate the effect of change in particle size and shape of nano lanthanides and its effect on the distribution of electromagnetic waves.
Osamah Saud Salman, Tamer Khalil M Ali
doaj   +1 more source

Critical Coupling in Semi‐Trasparent Fano Resonators for Photothermal Converters

Advanced Functional Materials, EarlyView.
An ultrathin metal–insulator multilayer architecture is engineered to exploit Fano‐resonant critical coupling, completely suppressing optical reflectance while achieving a balanced 50:50 trade‐off between absorbance and transmittance. Upon laser excitation at resonance, the metamaterial generates intense localized heat (ΔT≈550∘C$\Delta T {\approx }550^\
Giuseppe Emanuele Lio, Giuseppe Nicoletta, Roberto Caputo, Antonio Ferraro   +3 more
wiley   +1 more source

Determining the Effective Electromagnetic Parameters of Photonic Crystal by Phase Unwrapping and Denoising Method

International Journal of Antennas and Propagation, 2019
The electromagnetic parameters of the dispersion material and metamaterial are vital in the engineering. The phase unwrapping method is proposed to deal with the phase ambiguity of the transmission and reflection method in electromagnetic (EM) parameters
Guizhen Lu, Zhonghang Duan, Hongcheng Yin, Zhihe Xiao, Jing Zhang   +4 more
doaj   +1 more source

Proximity‐Tuned Magnetic and Transport Anomalies in All‐Epitaxial Fe5−xGeTe2/WSe2 Van der Waals Heterostructures

Advanced Functional Materials, EarlyView.
All‐epitaxial and scalable ferromagnetic/non‐magnetic Fe5−xGeTe2/WSe2 van der Waals (vdW) heterostructures exhibiting room‐temperature magnetism and perpendicular magnetic anisotropy (PMA) are realized. The system displays proximity‐tuned magnetic anisotropy, thickness‐dependent unconventional Hall effects, and temperature‐dependent sign reversal of ...
Hua Lv, Tauqir Shinwari, Kacho Imtiyaz Ali Khan, Jens Herfort, Chen Chen, Joan M. Redwing, Mehak Loyal, Gerhard Jakob, Mathias Kläui, Achim Trampert, Bernat Mundet, Belén Ballesteros, Manfred Ramsteiner, Roman Engel‐Herbert, Michael Hanke, João Marcelo J. Lopes   +15 more
wiley   +1 more source

Analysis of the Scattering Characteristics of Sea Surface with the Influence from Internal Wave

Leida xuebao, 2015
The internal wave travels beneath the sea surface and modulate the roughness of the sea surface through the wave-current interaction. This makes some dark and bright bands can be observed in the Synthetic Aperture Radar (SAR) images.
Wei Yi-wen, Guo Li-xin, Guo Li-xin
doaj   +1 more source

Research on Electromagnetic Scattering Characteristics of Transmission Tower With Different Tower Types in Short Wave Band Based on the Characteristic Mode Theory

IEEE Access, 2023
This research aims to provide a suitable method to analyze high-frequency electromagnetic scattering from extra-high voltage (EHV) transmission line towers with different tower types using characteristic mode theory (CMT).
Shiqi Zong, Chaoqun Jiao, Zhibin Zhao, Jiangong Zhang, Zheyuan Gan   +4 more
doaj   +1 more source