نتایج جستجو برای: inverse co precipitation

تعداد نتایج: 476155  

2018
Daniela B. van den Heuvel Tomasz M. Stawski Dominique J. Tobler Richard Wirth Caroline L. Peacock Liane G. Benning

1 Cohen Geochemistry Group, Earth Surface Science Institute, School of Earth and Environment, Faculty of Environment, University of Leeds, Leeds, United Kingdom, 2 Rock-Water Interaction Group, Institute of Geological Sciences, University of Bern, Bern, Switzerland, 3 Interface Geochemistry, German Research Centre for Geosciences, Potsdam, Germany, 4 Nano-Science Centre, Department of Chemistry...

2014
K. Ganapathi Rao Shilpa Chakra

Metal oxide nanomaterials are important and excellent materials, because of its special properties like chemical stability, high photo catalytic activity, high electric permittivity, non-toxic nature. So it is used in various applications like optical, electrical, electronic, antiseptic, antibacterial, environmental, semi conductors and catalytic devices. Present work focused on to synthesis of...

2006
Jerry M. Davis Jenise L. Swall

The ability of the US Environmental Protection Agency’s Community Multi-scale Air Quality (CMAQ) model to simulate the wet deposition of ammonium during 8-week winter and summer periods in 2001 is evaluated using observations from the National Acid Deposition Program (NADP) monitoring sites. The objective of this study is to ascertain the effects of precipitation simulations and emissions on CM...

2017
Xiang Song Xiaodong Zeng

The climate has important influences on the distribution and structure of forest ecosystems, which may lead to vital feedback to climate change. However, much of the existing work focuses on the changes in carbon fluxes or water cycles due to climate change and/or atmospheric CO 2, and few studies have considered how and to what extent climate change and CO 2 influence the ecosystem structure (...

2016
Zara P. Cherkezova-Zheleva Katerina L. Zaharieva Ivan B. Ivanov Vasko D. Idakiev Ivan G. Mitov

In this investigation, we report the preparation and characterization of Co-, Cuand Mn-substituted iron oxide catalytic materials supported on activated carbon. Co-precipitation method and low temperature treatment were used for their synthesis. The influence of chemical composition, stoichiometry, particle size and dispersity on their catalytic activity was studied. Samples were characterized ...

2015
Jacek Wojnarowicz Sylwia Kusnieruk Tadeusz Chudoba Stanislaw Gierlotka Witold Lojkowski Wojciech Knoff Malgorzata I Lukasiewicz Bartlomiej S Witkowski Anna Wolska Marcin T Klepka Tomasz Story Marek Godlewski

Zinc oxide nanopowders doped with 1-15 mol % cobalt were produced by the microwave solvothermal synthesis (MSS) technique. The obtained nanoparticles were annealed at 800 °C in nitrogen (99.999%) and in synthetic air. The material nanostructure was investigated by means of the following techniques: X-ray diffraction (XRD), helium pycnometry density, specific surface area (SSA), inductively coup...

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