Results 211 to 220 of about 5,043,066 (255)

Tunable Optical Bistability Within the Bandgap in One-Dimensional Photonic Crystal Multilayer Structures Containing Weyl Semimetal. [PDF]

Micromachines (Basel)
Qian L, Li Z, Shen Z, Tang J, Jiang L.
europepmc   +1 more source

Review of Insulation Ageing and Lifecycle Management for Oil‐Immersed Power Equipment: From Conventional Testing Analysis to Artificial Intelligence Method

High Voltage, EarlyView.
ABSTRACT Oil‐immersed power equipment is a critical component for energy transmission and secure operation of modern power grids. The ageing of oil–paper insulation under combined electrical, thermal and mechanical stresses directly affects equipment lifetime and system reliability. This paper presents a comprehensive review of the ageing behaviour and
Ruijin Liao, Jian Hao, Jing Xu, George Chen, Huanchao Cheng, Jiacong Li, Xize Dai   +6 more
wiley   +1 more source

Tunable Terahertz Optical Bistability Enabled by Synergistic Topological Edge States and Weyl Semimetal. [PDF]

Nanomaterials (Basel)
Li Z, Shen Z, Qian L, Zheng Z, Jiang L.
europepmc   +1 more source

A femtosecond time‐resolved Bragg coherent diffraction imaging experimental setup at PAL‐XFEL for nanoscale lattice dynamics studies

Journal of Synchrotron Radiation, EarlyView.
The XSS beamline at PAL‐XFEL provides a femtosecond time‐resolved Bragg coherent X‐ray diffraction imaging setup, optimized for tracking transient lattice dynamics and nanoscale strain fields within single crystals during dynamic processes.We report on the design and operational characterization of a femtosecond time‐resolved Bragg coherent X‐ray ...
Jinback Kang, Jaeku Park, Chi Hyun Shim, Myung-Hoon Cho, Kook-Jin Moon, Sung Soo Ha, Hyunjung Kim, Sung-Lae Cho, Sunam Kim   +8 more
wiley   +1 more source

Enhancing the Source-Side Transient Response of Logarithmic Double-Spiral Terahertz Photoconductive Antennas Using a Central-Feed-Boundary Tip Array. [PDF]

Micromachines (Basel)
Xu C, Wang S, Zhang Y, Dong H, Gao J, Wang G.   +5 more
europepmc   +1 more source

Brillouin–Raman micro‐mapping of silicone‐hydrogel contact lenses: Revealing chemical and mechanical heterogeneities

Journal of Microscopy, EarlyView.
Abstract Joint Brillouin–Raman micro‐spectroscopy (BRMS) enables simultaneous, non‐destructive characterisation of the mechanical and chemical properties of soft materials at the micrometre scale, combining GHz‐range viscoelastic information from acoustic modes with the vibrational fingerprint of molecular species.
Alessandra Anna Passeri, Martina Alunni Cardinali, Erika Ponzini, Silvia Tavazzi, Daniele Fioretto   +4 more
wiley   +1 more source

All-Optically Tunable Broadband Terahertz Modulators Based on Large-Area WSe₂/Si Heterojunction Grown by Sputtering and Selenization. [PDF]

Micromachines (Basel)
Lu S, Han D, Song J, Lin Y, Xu H, Lu G.
europepmc   +1 more source

Multi‐Model Fruit Quality Assessment With Coarse YOLOv11 Presence Filtering, Vision Transformers and the Segment Anything Model

Applied AI Letters, Volume 8, Issue 1, February 2027.
This paper presents a multi‐model deep learning pipeline for coarse fruit‐presence filtering, ripeness classification and pixel‐level spoilage segmentation. YOLOv11n is used only as an image‐level presence filter, four classifiers predict one of nine ripeness classes across three fruit types and the Segment Anything Model (SAM ViT‐H) generates fine ...
Md. Fazlay Rabbi, Al Hasib Mahamud, Md. Redwan Hossen, Md. Jakaria Mahmud, Mustofa Ahmed   +4 more
wiley   +1 more source

Highly efficient narrowband terahertz pulse generated from a radial plasma oscillator via mid-infrared lasers. [PDF]

Sci Rep
Lee J, Kumar M, Park D, Ersfeld B, Jaroszynski DA, Nam I, Hur MS.   +6 more
europepmc   +1 more source