Results 61 to 70 of about 300,602 (302)

Vertically resolved characteristics of air pollution during two severe winter haze episodes in urban Beijing, China [PDF]

Atmospheric Chemistry and Physics, 2018
We conducted the first real-time continuous vertical measurements of particle extinction (bext), gaseous NO2, and black carbon (BC) from ground level to 260 m during two severe winter haze episodes at an urban site in Beijing, China.
Q. Wang, Y. Sun, Y. Sun, Y. Sun, W. Xu, W. Xu, W. Du, W. Du, L. Zhou, G. Tang, C. Chen, X. Cheng, X. Zhao, D. Ji, T. Han, T. Han, Z. Wang, J. Li, Z. Wang, Z. Wang, Z. Wang   +20 more
doaj   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Heavy Rainfall Events in Southern China Associated with Tropical Cyclones in the Bay of Bengal: A Case Study

Atmosphere, 2019
We use a case study to show that a continuous heavy rainfall process in southern China was closely related to tropical cyclone activity in the Bay of Bengal.
Junpeng Yuan, Jiao Lü, Dian Feng, Mengni Mao, Tao Feng, Juyue Yin, Ling Zuo   +6 more
doaj   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Remote Sensing of Planetary Boundary Layer Thermodynamic and Material Structures over a Large Steel Plant, China

Remote Sensing, 2023
Air pollutants emitted by industries can significantly affect local air quality and jeopardize human health, and the study of the boundary layer thermodynamic structure and diffusion capacity over industrial plants can be beneficial for the improvement ...
Xinbing Ren, Liping Zhao, Yongjing Ma, Junsong Wu, Fentao Zhou, Danjie Jia, Dandan Zhao, Jinyuan Xin   +7 more
doaj   +1 more source

Atmospheric Boundary-Layer Processes and Atmospheric Modeling [PDF]

Advances in Meteorology, 2015
1Space Physics Laboratory, Vikram Sarabhai Space Centre, Department of Space, Government of India, Indian Space Research Organisation, Thiruvananthapuram 695022, India 2Environment Canada, Meteorological Research Division, Cloud Physics and Severe Weather Research Section, Toronto, ON, Canada M3H 5T4 3Public Authority for Civil Aviation, Oman National ...
D. Bala Subrahamanyam, Ismail Gultepe, Sultan Al-Yahyai, A. N. V. Satyanarayana   +3 more
openaire   +2 more sources

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Analysis on the Cause of Cold and Warm Transition in Beijing- Tianjin-Hebei during November-December 2022

Gaoyuan qixiang
During November-December of 2022， the climate of Beijing-Tianjin-Hebei （BTH） showed significant cold and warm transition， and the average air temperature difference between November and December was 10.6 °C， ranked first with 1971 and 1980 since 1961 ...
Xuxu GAO, Shaojing CHE, Haoyu DU
doaj   +1 more source

Mixing layer height and its implications for air pollution over Beijing, China [PDF]

Atmospheric Chemistry and Physics, 2016
The mixing layer is an important meteorological factor that affects air pollution. In this study, the atmospheric mixing layer height (MLH) was observed in Beijing from July 2009 to December 2012 using a ceilometer. By comparison with radiosonde data,
G. Tang, J. Zhang, X. Zhu, T. Song, C. Münkel, B. Hu, K. Schäfer, Z. Liu, J. Zhang, L. Wang, J. Xin, P. Suppan, Y. Wang   +12 more
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source