Results 81 to 90 of about 229,027 (259)

Magnetic fields of an active region filament from full Stokes analysis of Si I 1082.7 nm and He I 1083.0 nm

, 2012
Vector magnetic fields of an active region filament in the photosphere and upper chromosphere are obtained from spectro-polarimetric observations recorded with the Tenerife Infrared Polarimeter (TIP II) at the German Vacuum Tower Telescope (VTT).
A. Lagg, Asensio Ramos, Canou, Centeno, Collados, Georgoulis, Guo, Harvey, Kurucz, Lagg, Leroy, Lin, Lites, Lites, López Ariste, Merenda, Okamoto, Paletou, Rüedi, S. Solanki, Sasso, Socas-Navarro, Solanki, Trujillo Bueno, Wang, Y. Liu, Z. Xu   +26 more
core   +1 more source

Carbon Shell‐Encapsulated PtFe Catalysts in High Temperature Polymer Electrolyte Membrane Fuel Cells: Balancing Molecular Sieving and Diffusion for Enhanced Reactant Access

Advanced Functional Materials, EarlyView.
Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim, Sourabh S. Chougule, Suji Lee, Young Sang Park, Jihyun Choi, Katie Heeyum Lim, Albert S. Lee, Hyun S. Park, Namgee Jung, Sung Jong Yoo   +9 more
wiley   +1 more source

The localization of single pulse in VLBI observation

, 2019
In our previous work, we propose a cross spectrum based method to extract single pulse signals from RFI contaminated data, which is originated from geodetic VLBI postprocessing.
Jiang, Wu, Liu, Lei, Luo, Wentao, Ma, Maoli, Yan, Zhen, Zhang, Juan, Zheng, Weimin   +6 more
core   +1 more source

Precision-Aided Partial Ambiguity Resolution Scheme for GNSS Attitude Determination

The International Technical Meeting of the The Institute of Navigation, 2023
Castro Arvizu, Juan Manuel, Medina, Daniel, Vilà-Valls, Jordi   +2 more
openaire   +1 more source

Small Extracellular Vesicles from Neural Cells: Physiological and Pathological Roles, and Potential in Neurodegenerative Therapy

Advanced Healthcare Materials, EarlyView.
Neural cell–derived small extracellular vesicles (sEVs) are emerging as pivotal mediators in neurodegenerative diseases, exerting both pathogenic and therapeutic functions. This review synthesizes current evidence on how sEVs from distinct neural cell types regulate neurodegeneration, neuroprotection, biomarker discovery, and targeted drug delivery ...
Muhammad Waqas Salim, Wei Zhang, Lyndsey Collins‐Praino, Yuling Wang, Andrew Care   +4 more
wiley   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

CrownViM: Context Clustering Meets Vision Mamba for Precise Tree Crown Segmentation in Aerial RGB Imagery

Remote Sensing
The proliferation of high-spatial-resolution remote sensing data is transforming forest attribute estimation, replacing traditional manual approaches with deep learning-based Individual Tree Crown Delineation (ITCD).
Erkang Shi, Ziyang Shi, Fulin Su, Lin Li, Ruifeng Liu, Fangying Wan, Kai Zhou   +6 more
doaj   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

The Digital Mirage: India's Evolving Legal Battle Against Deepfake Technology

SCRIPTed: A Journal of Law, Technology & Society
The proliferation of deepfake technology in India presents unprecedented challenges to existing legal frameworks, threatening individual dignity, democratic processes, and social harmony.
Sommya Kashyap
doaj   +1 more source

Probabilistic Constraint Logic Programming

, 1997
This paper addresses two central problems for probabilistic processing models: parameter estimation from incomplete data and efficient retrieval of most probable analyses.
Riezler, Stefan
core   +2 more sources