Results 141 to 150 of about 3,514 (240)

TRACERS Small‐Scale Field‐Aligned Currents and Intense GPS Amplitude and Phase Scintillations in the Nightside Auroral Region

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract We present conjugate observations of ionospheric small‐scale magnetic perturbations (dB) $(dB)$ and GPS scintillations from the Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) and the Canadian High Arctic Ionospheric Network (CHAIN) during a storm‐time substorm on 9 August 2025 in the nightside auroral region ...
Yangyang Shen, Robert J. Strangeway, Hao Cao, James M. Weygand, Jiashu Wu, Anthony McCaffrey, P. T. Jayachandran, Daniel Billett, Magnus F. Ivarsen, Christopher Watson, Sheng Tian, Marit Oieroset, David Miles   +12 more
wiley   +1 more source

A Rail Profile Measurement Method Based on Polarization Fusion Imaging. [PDF]

Sensors (Basel)
Han Q, Zhao X, Shi J, Wang S, Dai P, Wang N, Wang L.   +6 more
europepmc   +1 more source

Increasing of Q Factor of Quasi‐Bound States in the Continuum With Increased Asymmetry Parameter in a Silicon Metasurface Array

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Quasi‐bound states in the continuum (qBICs) can support resonances with high quality (Q) factor. Traditionally, maintaining a high Q factor requires a small α, which brings significant challenges for nanofabrication. In contrast, our study finds an increase in the Q factor with increasing of α in a metasurface array composed of Si blocks with circular ...
Yi Tian, Qin Fu, Shuai Feng, Qingguo Du, Zhengying Li, Fei Xu   +5 more
wiley   +1 more source

Cones of Noether-Lefschetz divisors and moduli spaces of hyperkähler manifolds. [PDF]

Math Ann
Barros I, Beri P, Flapan L, Williams B.
europepmc   +1 more source

Analysis of Bonding Defects in Cementing Casing Using Attenuation Characteristic of Circumferential SH Guided Waves. [PDF]

Sensors (Basel)
Gao J, Chen T, Lyu Y, Song G, Peng J, He C.   +5 more
europepmc   +1 more source

Probing 3D Molecular Orientation and Crystallization Behavior in PLLA/PEG Spherulites Using O-PTIR. [PDF]

Anal Chem
Kosowska K, Oles H, Wrobel TP.
europepmc   +1 more source

Cross‐Scale Synergistic Optimization for Miniature Meta‐Liquid Hybrid Zoom Imaging

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
A physically constrained optimization framework links electrowetting liquid lenses and metasurface dispersion engineering to realize a compact visible‐band achromatic zoom imager. By co‐optimizing zoom actuation, meta‐atom manufacturability, and system aberrations, the design achieves 1.5x zoom in a 15.5 mm track and clarifies robustness against ...
Zhuoxuan Fan, Meng Zhang, Zihao Gan, Mengyue Chang, Ce Zhang, Zhaoyang Liu, Jianming Lv, Kunsheng Xing, Zhuoqun Hu, Junbo Yang, Huajie Hong   +10 more
wiley   +1 more source

Modal Analysis with Asymptotic Strips Boundary Conditions of Skewed Helical Gratings on Dielectric Pipes as Cylindrical Metasurfaces for Multi-Beam Holographic Rod Antennas. [PDF]

Sensors (Basel)
Ng Mou Kehn M, Lin TW, Chen WC.
europepmc   +1 more source

Machine Learning Accelerated Computational Design of Bio‐Inspired Catalysts in the Nitrogen Reduction Reaction

Advanced Materials, Volume 38, Issue 39, 13 July 2026.
We introduce a computational workflow that combines quantum chemical calculations and machine learning techniques to predict the catalytic performance of a wide range of catalysts in the nitrogen reduction reaction (NRR). The analysis of the trained models provides insights into the complex structure–activity relationship in experimental catalytic ...
Leonardo Di Ciano, Zihan You, Haoran Chen, Qifan Zhong, Rong‐Zhen Liao, Shaoqi Zhan   +5 more
wiley   +1 more source

Integrating stent design and microstructural characterization to improve clinical outcomes of bioresorbable stents. [PDF]

Mater Des
Canalejo-Codina F, Pegueroles M, García-Granada AA, Martorell J, Edelman ER, Balcells M.   +5 more
europepmc   +1 more source