نتایج جستجو برای: rare metals

تعداد نتایج: 301425  

2013
Jamroonsri POOMTIEN Jiraporn THANIYAVARN Pairoh PINPHANICHAKARN Sasitorn JINDAMORAKOT Masaaki MORIKAWA

Department of Microbiology, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok 10300, Thailand Bioresources Technology Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), Pathumthani 12120, Thailand Environmental Molecular Biology Laboratory, Environmental Biology Section, Faculty of Environmental Earth Science, Hokkaido University, N-10 W-5, Sapporo...

2012
E. Stutzmann

E. Stutzmann,1 F. Ardhuin,2 M. Schimmel,3 A. Mangeney4 and G. Patau1 1Institut de Physique du Globe de Paris, Sorbonne-Paris-Cité, Paris, France. E-mail: [email protected] 2Laboratoire d’Océanographie Spatiale, Ifremer, Plouzané, France 3Institute of Earth Sciences Jaume Almera, CSIC, Barcelona, Spain 4Institut de Physique du Globe de Paris, Université Paris Diderot, Sorbonne-Paris-Cité, Paris, France

Journal: :Dalton transactions 2011
Hirofumi Hara Atsushi Kobayashi Shin-ichiro Noro Ho-Chol Chang Masako Kato

Four new bimetallic coordination polymers (CPs), {M[Pt(CN)(2)(5,5'-dcbpy)]·4H(2)O}(n) (M = Mg(2+), Ca(2+), Sr(2+), Ba(2+); 5,5'-H(2)dcbpy = 5,5'-dicarboxy-2,2'-bipyridine) were synthesized using four alkaline-earth metal ions and a Pt(II)-diimine metalloligand [Pt(CN)(2)(5,5'-H(2)dcbpy)]. All four CPs are isomorphous with the Zn complex, {Zn[Pt(CN)(2)(5,5'-dcbpy)]·4H(2)O}(n), which exhibits eff...

2013
Louise B. Firth Richard C. Thompson Freya J. White Meredith Schofield Martin W. Skov Simon P. G. Hoggart Juliette Jackson Antony M. Knights Stephen J. Hawkins

Ryan Institute, National University of Ireland Galway, University Road, Galway, Ireland, School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, UK, Marine Biology and Ecology Research Centre, School of Marine Science and Engineering, Plymouth University, Drake Circus, Plymouth PL4 8AA, UK, School of Environmental Sciences, University of Liverpool, Liverpool, UK, National ...

2009
Ute Ch. Rodewald Birgit Heying Rolf-Dieter Hoffmann Dirk Niepmann Rainer Pöttgen

The equiatomic germanides REPtGe with the heavy rare earth elements (RE) have been reinvestigated with respect to platinum-germanium ordering. The compounds were prepared by arc-melting of the elements followed by annealing for two weeks at 1070 K. The REPtGe germanides crystallize with the TiNiSi-type structure, space group Pnma. The structures of ErPtGe (a = 692.01(5), b = 432.03(4), c = 753....

2013
Dana L. Drew Ilya N. Bindeman Kathryn E. Watts Axel K. Schmitt Bin Fu Michael McCurry

a Department of Geological Sciences, 1272 University of Oregon, Eugene, OR 97403, USA b U.S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 94025, USA c Department of Earth and Space Sciences, University of California, Los Angeles, CA 90095, USA d Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia e Department of Geosciences, Idaho Stat...

2014
Charu Sharma

The study explored conceptual development and understanding in children across different age groups from a developmental psychology perspective. The aim was to investigate developmental change in children's understanding of two different yet overlapping concepts of ‘earth’ across the three different age groups. The children in the successive age groups of 6 years, 8 years and 10 years were stud...

2010
D. R. Mole M. Fiorentini N. Thebaud C. McCuaig K. F. Cassidy S. J. Barnes

1Centre for Exploration Targeting, University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia 2CSIRO Earth Science & Resource Engineering, 26 Dick Perry Ave, Kensington WA 6151, Australia 3Centre for Geochemical Evolution and Metallogeny of Continents, Macquarie University, Macquarie, NSW 2109, Australia 4Geological Survey of Western Australia, 100 Plain Street, East...

Journal: :Advances in biochemical engineering/biotechnology 2014
Franz Glombitza Susan Reichel

This chapter explains the manifold geobiotechnological possibilities to separate industrial valuable metals from various industrial residues and stored waste products of the past. In addition to an overview of the different microbially catalyzed chemical reactions applicable for a separation of metals and details of published studies, results of many individual investigations from various resea...

Journal: :Physical review letters 2001
A F Hoekstra A S Roy T F Rosenbaum R Griessen R J Wijngaarden N J Koeman

Rare earth hydride films can be converted reversibly from metallic mirrors to insulating windows simply by changing the surrounding hydrogen gas pressure at room temperature. At low temperatures, in situ doping is not possible in this way as hydrogen cannot diffuse. However, our finding of persistent photoconductivity under ultraviolet illumination offers an attractive possibility to tune yttri...

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