نتایج جستجو برای: alkalian earth metals

تعداد نتایج: 153614  

2005
W. Knorr E. A. Holland

On the available evidence for the temperature dependence of soil organic carbon W. Knorr, I. C. Prentice, J. I. House, and E. A. Holland QUEST, Department of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK National Center for Atmospheric Research, Boulder, Colorado, USA Received: 3 June 2005 – Accepted: 22 June 2005 – Published: 1 July 2005 Correspondence to: W. Knorr (wolfgang.knorr...

2007
Peter Molnar Julie C. Libarkin Bruce J. MacFadden

RO OF Reply to Comment on “Rapid late Miocene rise of the Bolivian Altiplano: Evidence for removal of mantle lithosphere” by Garzione et al. (2006), Earth Planet. Sci. Lett. 241 (2006) 543–556 Carmala N. Garzione ⁎, Peter Molnar , Julie C. Libarkin , Bruce J. MacFadden d a Department of Earth and Environmental Sciences, University of Rochester, Rochester, NY 14627, USA b Department of Geologica...

2003
A. Engler G. Kurat P. J. Sylvester

(LL3.1), BISHUNPUR (LL3.1) AND MEZÖ-MADARAS (L3.7): IMPLICATIONS FOR CHONDRULE FORMATION. A. Engler, G. Kurat and P. J. Sylvester, Department of Mineralogy and Petrology, University of Graz, Universitätsplatz 2, A-8010 Graz, Austria ([email protected]), Naturhistorisches Museum, Postfach 417, A-1014 Vienna, Austria, Department of Earth Science, Memorial University of Newfoundland, St. Jo...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Shi-Bo Cheng Cuneyt Berkdemir A W Castleman

Rare earth elements (REs) consist of a very important group in the periodic table that is vital to many modern technologies. The mining process, however, is extremely damaging to the environment, making them low yield and very expensive. Therefore, mimicking the properties of REs in a superatom framework is especially valuable but at the same time, technically challenging and requiring advanced...

Journal: :Systematic biology 2014
Michael S Y Lee Andrea Cau Darren Naish Gareth J Dyke

1Earth Sciences Section, South Australian Museum, North Terrace, Adelaide 5000, Australia; 2School of Earth and Environmental Sciences, University of Adelaide 5005, Australia; 3Museo Geologico e Paleontologico “Giovanni Capellini”, Via Zamboni 63, 40126 Bologna, Italy; and 4Ocean and Earth Science, University of Southampton, Southampton SO14 3ZH, UK ∗Correspondence to be sent to: E-mail: mike.l...

2016
Saleh A. Alkahtani Emad M. Elgallad Mahmoud M. Tash Agnes M. Samuel Fawzy H. Samuel

The present study was performed on A356 alloy [Al-7 wt %Si 0.0.35 wt %Mg]. To that La and Ce were added individually or combined up to 1.5 wt % each. The results show that these rare earth elements affect only the alloy melting temperature with no marked change in the temperature of Al-Si eutectic precipitation. Additionally, rare earth metals have no modification effect up to 1.5 wt %. In addi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this research we have studied the effect of some transition-metals (cu, ag and au) substitutions on two-electron reduction potential of flavins by application of dft method. all geometries have been optimized at blyp level of theory and “6-31+g** + lanl2dz” mixed basis set. the frequency job at the same method and basis sets has been performed to obtain gibbs free energy of compounds. it h...

2008
C. Hauton

The subtle effects of sea water acidification on the amphipod Gammarus locusta C. Hauton, T. Tyrrell, and J. Williams School of Ocean and Earth Science, University of Southampton, National Oceanography Centre, European Way, Southampton, Hants, SO14 3ZH, UK Received: 17 November 2008 – Accepted: 17 November 2008 – Published: 15 January 2009 Correspondence to: C. Hauton ([email protected]) Pub...

2003
Paul A. Baker Mark Bush Catherine A. Rigsby Geoffrey Seltzer

Paul A. Baker Duke University, Division of Earth and Ocean Sciences, Durham, North Carolina 27708, USA Mark Bush Florida Institute of Technology, Department of Biological Sciences, Melbourne, Florida 32901, USA Sherilyn Fritz University of Nebraska, Department of Geosciences, Lincoln, Nebraska 68588, USA Catherine A. Rigsby East Carolina University, Department of Geology, Greenville, North Caro...

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