Results 71 to 80 of about 300,602 (302)

PM2.5 Characteristics and Regional Transport Contribution in Five Cities in Southern North China Plain, During 2013–2015

Atmosphere, 2018
PM2.5 data from major cities in the southern North China Plain during 2013–2015 were comprehensively analyzed relative to variation features, meteorology effects, and regional transport contributions.
Lili Wang, Wenjie Li, Yang Sun, Minghui Tao, Jinyuan Xin, Tao Song, Xingru Li, Nan Zhang, Kang Ying, Yuesi Wang   +9 more
doaj   +1 more source

Vertical Coherence of Turbulence in the Atmospheric Surface Layer: Connecting the Hypotheses of Townsend and Davenport [PDF]

, 2019
Statistical descriptions of coherent flow motions in the atmospheric boundary layer have many applications in the wind engineering community. For instance, the dynamical characteristics of large-scale motions in wall-turbulence play an important role in ...
Baars, Woutijn J., Hutchins, Nicholas, Krug, Dominik, Marusic, Ivan   +3 more
core   +3 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Characteristics and Source Apportionment of Metallic Elements in PM_2.5 at Urban and Suburban Sites in Beijing: Implication of Emission Reduction

Atmosphere, 2019
To gain insights into the impacts of emission reduction measures on the characteristics and sources of trace elements during the 2014 Asia-Pacific Economic Cooperation (APEC) summit, PM2.5 samples were simultaneously collected from an urban site and a ...
Miaoling Li, Zirui Liu, Jing Chen, Xiaojuan Huang, Jingyun Liu, Yuzhu Xie, Bo Hu, Zhongjun Xu, Yuanxun Zhang, Yuesi Wang   +9 more
doaj   +1 more source

Intercomparison of single-column models for GABLS3: preliminary results [PDF]

, 2008
The GEWEX Atmospheric Boundary-Layer Study (GABLS) focus on the representation of stable boundary layers in atmospheric models (Holtslag, 2006). One of the main goals of GABLS is to provide a mondial platform for the atmospheric boundary layer research ...
Bosveld, F.C., Bruijn, E.I.F., de, Holtslag, A.A.M.   +2 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Physical Modeling of the Atmospheric Boundary Layer in the University of New Hampshire’s Flow Physics Facility [PDF]

, 2016
The atmospheric boundary layer is the lowest part of the atmosphere, and is defined by a region from the surface of the earth to approximately 500-1000m altitude in which air velocity changes from zero at the surface to the velocity of the wind at a ...
Gilooly, Stephanie, Taylor-Power, Gregory   +1 more
core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

A case study of boundary layer ventilation by convection and coastal processes [PDF]

, 2007
It is often assumed that ventilation of the atmospheric boundary layer is weak in the absence of fronts, but is this always true? In this paper we investigate the processes responsible for ventilation of the atmospheric boundary layer during a nonfrontal
Agustí-Panareda, Angevine, Baltensperger, Chatfield, Cullen, Dickerson, Donnell, Edy, Esler, Flatøy, Gimson, Gray, Gregory, H. F. Dacre, Hauf, Hobbs, Kossmann, Kowol-Santen, Leon, Lock, Lu, Lu, S. E. Belcher, S. L. Gray, Schultz, Seibert, Smith, Thompson, Verma, Wakimoto, Wang, Wilson   +31 more
core   +1 more source