Results 61 to 70 of about 320,910 (314)

Nanodiamond Quantum Sensors for Probing Free Radical Biology

Advanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

Analysis of Reduction Strategies for Air Pollutants Discharged from Emission Sources and their Impact on the Seoul Metropolitan Area

Asian Journal of Atmospheric Environment, 2007
The Korean government enacted the “Special Law for Improving Air Quality of Metropolitan Area” in 2003. According to this plan, Korean government plan to lower the concentrations of PM10 and NOx to 40 μg/m3 and 22 ppb, respectively, by 2014.
Woo-Keun Lee, Young Sunwoo
doaj   +1 more source

Study on room temperature gas-sensing performance of CuO film-decorated ordered porous ZnO composite by In2O3 sensitization [PDF]

Royal Society Open Science, 2018
For the first time, ordered mesoporous ZnO nanoparticles have been synthesized by a template method. The electroplating after chemical plating method was creatively used to form copper film on the surface of the prepared ZnO, and then a CuO film ...
Tian-tian Li, Na Bao, Ai-fang Geng, Hui Yu, Ying Yang, Xiang-ting Dong   +5 more
doaj   +1 more source

Inventarisasi Emisi dari Sektor Transportasi Darat di Kota Pontianak

Jurnal Ilmu Lingkungan, 2023
Upaya yang dapat dilakukan untuk mengatasi permasalahan polusi udara yaitu dengan melakukan pengendalian pencemaran udara, salah satunya dengan cara  melakukan inventarisasi emisi.
Rizki Nur Rahmasari, Dian Rahayu Jati, Jumiati Jumiati   +2 more
doaj   +1 more source

Radiative forcing from aircraft NOx emissions: Mechanisms and seasonal dependence [PDF]

, 2004
A chemistry-climate model has been applied to study the radiative forcings generated by aircraft NOx emissions through changes in ozone and methane. Four numerical experiments, where an extra pulse of aircraft NOx was emitted into the model atmosphere ...
Aselmann, Brasseur, Collins, Collins, Collins, Collins, Cooke, David S. Stevenson, Derwent, Derwent, Edwards, Essery, Fahey, Henderson, Intergovernmental Panel on Climate Change (IPCC), Intergovernmental Panel on Climate Change (IPCC), Isaksen, Johns, Lawrence, Li, Logan, Meijer, Murphy, Olivier, Pitari, Pope, Prather, Prather, Prather, Prather, Price, Reay, Sanderson, Sanderson, Sanderson, Schimel, Smith, Stevenson, Stevenson, Stevenson, Taylor, Thompson, Thompson, Wild, Yonemura   +44 more
core   +1 more source

Pulmonary Endothelial Cell NOX [PDF]

American Journal of Respiratory Cell and Molecular Biology, 2012
Reactive oxygen species (ROS) have profound influences on cellular homeostasis. In excess, they can potentiate the oxidation of numerous molecules, including proteins, lipids, and nucleic acids, affecting function. Furthermore, ROS-mediated oxidation of proteins can directly or indirectly modulate gene expression via effects on redox-sensitive ...
Rachel, Damico, Javier J, Zulueta, Paul M, Hassoun   +2 more
openaire   +2 more sources

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source

Effect of Radiation on Diesel Engine Combustion and Heat Transfer

Journal of Thermal Science and Technology, 2009
An investigation of the effect of radiation on NOx emission was conducted for low temperature diesel engine combustion by using advanced numerical models in a Computational Fluid Dynamics code.
Takeshi YOSHIKAWA, Rolf D. REITZ
doaj   +1 more source

Why do models overestimate surface ozone in the Southeast United States [PDF]

, 2016
Ozone pollution in the Southeast US involves complex chemistry driven by emissions of anthropogenic nitrogen oxide radicals (NOx  ≡  NO + NO2) and biogenic isoprene. Model estimates of surface ozone concentrations tend to be biased high in the region and
Cohen, Ronald C., Crounse, John D., Dibb, Jack E., Fisher, Jenny A., Hall, Samuel R., Jacob, Daniel J., Kim, Patrick S., Laughner, Joshua L., Marais, Eloise A., Miller, Christopher C., St. Clair, Jason M., Sulprizio, Melissa P., Thompson, Anne M., Travis, Katherine R., Ullmann, Kirk, Wennberg, Paul O., Wolfe, Glenn M., Yantosca, Robert M., Yu, Karen, Zhu, Lei   +19 more
core   +1 more source

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

Advanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu, Keliang Song, Haorui Zhang, Zhipeng Liu, Guansong He, Junru Wang, Wenming Yang, Xu Zhao, Zhijian Yang   +8 more
wiley   +1 more source