Results 91 to 100 of about 457,905 (387)

MAX-DOAS measurements of tropospheric NO2 and HCHO in Munich and the comparison to OMI and TROPOMI satellite observations

Atmospheric Measurement Techniques, 2020
. We present two-dimensional scanning Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) observations of nitrogen dioxide (NO2) and formaldehyde (HCHO) in Munich.
K. Chan, M. Wiegner, J. van Geffen, I. de Smedt, C. Alberti, Zhibin Cheng, Sheng Ye, M. Wenig   +7 more
semanticscholar   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

Synergistic Effects of Lightning Activity and Other Disturbance Factors on NO2 in Yunnan and Its Surrounding Areas

Qixiang keji
NO2 is the common precursor of the secondary conversion of PM2.5 and O3. Understanding its change characteristics and influencing factors is of great significance for the collaborative treatment of PM2.5 and O3.
ZHAO Pingwei, LI Liyin, WANG Jiani, REN Juzhang, CHEN Jing, ZHANG Yunqiu   +5 more
doaj   +1 more source

Airborne Measurements of Ozone and Its Precursors over Yeosu-Gwangyang Industrial Areas in the Southern Coast of Korea

Asian Journal of Atmospheric Environment, 2013
The purpose of this study is to understand distributional characteristics in the atmospheric concentrations of O3 and its precursors based on data taken at the southern Korean coast.
So-young Kim, Seok-jun Seo, Hyun-ju Park, Jung-seok Son, Ji-hoon Park, Jong-choon Kim   +5 more
doaj   +1 more source

Operando Temperature Sensing at the Actual Electrocatalytic Interface by Nanodiamond Quantum Sensors

Advanced Functional Materials, EarlyView.
By integrating a wide‐field microscope with a custom‐designed electrolyzer, nanoscale temperature changes can be recorded in situ during the electrolysis process without interfering with ongoing electrochemical reactions. This method establishes a correlation between the interface temperature and specific electrochemical reactions, making the measured ...
Zan Li, Hui Wang, Mingzhong Ai, Yao Gao, Xinyi Feng, Junchen Ye, Ying Wang, Quan Li   +7 more
wiley   +1 more source

Gas Doping on the Topological Insulator Bi2Se3 Surface

, 2011
Gas molecule doping on the topological insulator Bi2 Se3 surface with existing Se vacancies is investigated using first-principles calculations. Consistent with experiments, NO2 and O2 are found to occupy the Se vacancy sites, remove vacancy-doped ...
Frauenheim, Thomas, Koleini, Mohammad, Yan, Binghai   +2 more
core   +1 more source

Improving algorithms and uncertainty estimates for satellite NO2 retrievals: results from the quality assurance for the essential climate variables (QA4ECV) project

Atmospheric Measurement Techniques, 2018
. Global observations of tropospheric nitrogen dioxide (NO2) columns have been shown to be feasible from space, but consistent multi-sensor records do not yet exist, nor are they covered by planned activities at the international level. Harmonised, multi-
K. F. Boersma, H. Eskes, A. Richter, I. de Smedt, A. Lorente, S. Beirle, J. van Geffen, Marina Zara, E. Peters, M. Van Roozendael, T. Wagner, J. Maasakkers, R. van der A, J. Nightingale, Anne De Rudder, H. Irie, G. Pinardi, J. Lambert, S. Compernolle   +18 more
semanticscholar   +1 more source

Three-Dimensional Graphene Hydrogel Decorated with SnO2 for High-Performance NO2 Sensing with Enhanced Immunity to Humidity.

ACS Applied Materials and Interfaces, 2020
A facile, one-step hydrothermal route was exploited to prepare SnO2-decorated reduced graphene oxide hydrogel (SnO2/RGOH) with three-dimensional (3D) porous structures for NO2 gas detection.
Jin Wu, Zixuan Wu, Haojun Ding, Yaoming Wei, Wenxi Huang, Xing Yang, Zhenyi Li, Lin Qiu, Xiaotian Wang   +8 more
semanticscholar   +1 more source

Mechanistic Insights into a Synergistic FeOx/Fe‐N4 System for Practical Nitrate Abatement with Value‐Added Ammonia Recovery

Advanced Functional Materials, EarlyView.
This work provides a novel interpretation of the nitrate reduction mechanism on iron oxides (FeOx) by employing constant‐potential density functional calculations and reports the design and synthesis of a robust and high‐performance Fe3O4/Fe‐N4‐C catalyst with remarkable Faradaic efficiency, current density, and stability under practical reaction ...
Qiang Zhou, Hongzhi Liu, Shenglin Liu, Yuwei Liu, Mamiko Nakabayashi, Yunlong Xie, Naoya Shibata, Feng Gong, Jean‐Jacques Delaunay   +8 more
wiley   +1 more source

14N Nuclear Quadrupole Resonance Spectra of K2SrCu(NO2)6, K2BaCu(NO2)6, and Cs2PbCu(NO2)6 [PDF]

Bulletin of the Chemical Society of Japan, 1981
Abstract The 14N NQR frequencies of K2SrCu(NO2)6, K2BaCu(NO2)6, and Cs2PbCu(NO2)6 were determined at various temperatures below about 155, 67, and 235 K, respectively. The results are discussed in referring to their crystal structure.
Tetsuo Asaji, Jun Ishikawa, Ryuichi Ikeda, Daiyu Nakamura   +3 more
openaire   +1 more source