Results 81 to 90 of about 338,113 (255)

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Nitrogen deposition contributed to a global increase in nitrous oxide emissions from forest soils

Communications Earth & Environment
Nitrous oxide is a potent greenhouse gas. Anthropogenically enhanced nitrogen deposition causes natural forest soils to release more nitrous oxide, exacerbating global warming.
Xiaoyu Cen, Christoph Müller, Xiaoyan Kang, Xuhui Zhou, Jinbo Zhang, Guirui Yu, Nianpeng He   +6 more
doaj   +1 more source

Simulations of future sulphur and nitrogen deposition over Europe using meteorological data from three regional climate projections

Tellus: Series B, Chemical and Physical Meteorology, 2013
We use a regional model of atmospheric chemistry and transport to investigate trends in sulphur and nitrogen deposition over Europe during the first half of the 21st century.
Magnuz Engardt, Joakim Langner
doaj   +1 more source

Influence of nitrogen deposition on carbon dynamics in peatlands [PDF]

, 2006
The impact of high levels of nitrogen deposition from the atmosphere (primarily from the combustion of fossil fuels and transportation) on soil carbon fluxes and carbon sequestration pathways in peatlands are uncertain and limit our understanding of ...
Artz, Rebekka, Dawson, Lorna, Johnson, David, Leterme, Pauline, van der Wal, Rene   +4 more
core  

Decadal changes in summertime reactive oxidized nitrogen and surface ozone over the Southeast United States [PDF]

, 2018
Widespread efforts to abate ozone (O3) smog have significantly reduced emissions of nitrogen oxides (NOx) over the past 2 decades in the Southeast US, a place heavily influenced by both anthropogenic and biogenic emissions.
Cohen, Ronald C., Crounse, John D., Dibb, Jack E., Fiore, Arlene M., Fried, Alan, Hanisco, Thomas F., Horowitz, Larry W., Lee, Ben H., Li, Jingyi, Lopez-Hilfiker, Felipe D., Mao, Jingqiu, Neuman, J. Andrew, Nowak, John B., Paulot, Fabien, Peischl, Jeff, Pollack, Ilana B., Robert, James M., Ryerson, Thomas B., Singh, Hanwant B., Teng, Alex P., Thornton, Joel A., Veres, Patrick, Wennberg, Paul O., Wolfe, Glenn M.   +23 more
core   +4 more sources

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

Advanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim, Antônio Rogério de Souza, Tatiana Bendo, Aloisio Nelmo Klein, Rodrigo Perito Cardoso   +4 more
wiley   +1 more source

Acidification and Nitrogen Eutrophication of Austrian Forest Soils

Applied and Environmental Soil Science, 2012
We evaluated the effect of acidic deposition and nitrogen on Austrian forests soils. Until thirty years ago air pollution had led to soil acidification, and concerns on the future productivity of forests were raised. Elevated rates of nitrogen deposition
Robert Jandl, Stefan Smidt, Franz Mutsch, Alfred Fürst, Harald Zechmeister, Heidi Bauer, Thomas Dirnböck   +6 more
doaj   +1 more source

Estimation of the atmospheric flux of nutrients and trace metals to the Eastern Tropical North Atlantic Ocean [PDF]

, 2015
Atmospheric deposition contributes potentially significant amounts of the nutrients iron, nitrogen and phosphorus (via mineral dust and anthropogenic aerosols) to the oligotrophic tropical North Atlantic Ocean.
A. R. Baker, Adams, Baker, Baker, Baker, Baker, Baker, Ben-Ami, Bristow, Buck, C. F. Powell, C. Yodle, Chiapello, Chou, Croot, Crutzen, Duce, Duce, Duce, ECMWF, Fomba, Fomba, Ganzeveld, H. W. Bange, Helmers, Jickells, Johansen, Johnson, Kaufman, Kim, Krishnamurthy, Lesworth, Luo, Mahowald, Mahowald, Mills, Moore, Okin, Prospero, Prospero, Prospero, Prospero, Pye, R. J. Chance, Real, Savoie, Schlosser, Sedwick, Stuut, Sunda, T. D. Jickells, Ternon, Tian, Ussher, Xie, Zamora   +55 more
core   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Nitrogen deposition favors later leaf senescence in woody species

Nature Communications
China has experienced an unprecedented increase in nitrogen deposition over recent decades, threatening ecosystem structure, functioning, and resilience.
Jian Wang, Xiaoyue Wang, Josep Peñuelas, Hao Hua, Chaoyang Wu   +4 more
doaj   +1 more source