Results 151 to 160 of about 521,797 (371)

Photoluminescent UV Light Modulation via Anisometric Carbon Nanodots for UV–Visible Shutter and UV Sensor

Advanced Functional Materials, EarlyView.
Anisometric carbon nanodots are synthesized directly from a liquid crystal precursor and embedded into polymer network liquid crystals to create soft, multifunctional photonic films. These hybrid devices exhibit polarized photoluminescence, broad UV absorption, and fast, electrically tunable light modulation.
Mangesh D. Patekari, Archana Ramadas, Minhee Yun, Seung Hee Lee, MinSu Kim   +4 more
wiley   +1 more source

Thermoplastic Elastomeric Bottlebrush Copolymer Glue Electrolyte Featuring Dual‐Ion Transport Channels and Strong Segregation: Experimental and Simulation Insights

Advanced Functional Materials, EarlyView.
A thermoplastic elastomeric glue electrolyte featuring a strongly segregated PVA‐g‐PTFP bottlebrush copolymer exhibits a nanoscale domain architecture, dual‐ion transport pathways, and universal strong interfacial adhesion. The system delivers high ionic conductivity, wide electrochemical stability, and mechanical robustness, offering a versatile ...
Hyuk Jin Roh, Jin Hyuk Kim, Woo Jin Mun, Salvador Eslava, Jong Hak Kim   +4 more
wiley   +1 more source

Robust Fractional Low-Order Multiple Window STFT for Infinite Variance Process Environment

IET Signal Processing
Mechanical fault vibration signal is a typical non-Gaussian process, they can be characterized by the infinite variance process, and the noise within these signals may also be the process in complex environments.
Haibin Wang, Changshou Deng, Junbo Long, Youxue Zhou   +3 more
doaj   +1 more source

分数阶傅里叶变换在轴承故障诊断中的应用

Journal of Harbin University of Science and Technology, 2017
In fault diagnosis of rolling bearings，the fault signal is easy to be interfered by the ambient noise， Therefore，an approach based on Fractional Fourier Transform( FＲFT) is studied in this research to collect valid data of rolling bearing fault.
SHAO Yan, LU Di, YANG Guang-xue
doaj   +1 more source

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

Advanced Functional Materials, EarlyView.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung, Tae Jin Jang, Sang Yoon Song, Chang‐Gi Lee, Jun Ho Lee, Young‐Kyun Kim, Sang‐Ho Oh, Byeong‐Joo Lee, Alireza Zargaran, Se‐Ho Kim, Young‐Sang Na, Seok Su Sohn   +11 more
wiley   +1 more source

Robust image watermarking using ant colony optimization and fast generic radial harmonic Fourier moment calculation

IET Image Processing
In open networks, the geometric deformation and common image processing are common image manipulation modes, which pose a great challenge in robust watermarking. To improve the robustness of GRHFM‐based watermarking, a watermarking algorithm based on the
Wenbing Wang, Liu Feng
doaj   +1 more source

COVID-19 Diagnosis by Extracting New Features from Lung CT Images Using Fractional Fourier Transform [PDF]

Allie Nokhostin, Saeid Rashidi
openalex   +1 more source

GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri, Jian Li, Wahid Ullah, Fabien Baron, Franck Bourdelle, Stéphan Rouzière, Claire Goldmann, Erik Elkaim, Thomas Bizien, Rachid Belkhou, Delphine Vantelon, Mohamed Nawfal Ghazzal, Erwan Paineau   +12 more
wiley   +1 more source

Passive Radar Array With Low-Power Satellite Illuminators Based on Fractional Fourier Transform

, 2017
Zhongyu Li, Fabrizio Santi, Debora Pastina, P. Lombardo   +3 more
openalex   +2 more sources

A lossless image compression algorithm using wavelets and fractional Fourier transform [PDF]

, 2019
R Naveen Kumar, Basavaraj N Jagadale, J. S. Bhat   +2 more
openalex   +1 more source