Results 61 to 70 of about 653,448 (286)

Trace Element Estimation – Methods & Clinical Context [PDF]

, 2005
Understanding the effects of trace metals on human health is as complex as it is fascinating. As mentioned earlier, the high concentrations may prove toxic, as also, depletion in the concentration of the essential trace elements may cause various ...
Rao Nanjunda, Dr. Ananth
core   +1 more source

Seawater redox variations during the deposition of the Kimmeridge Clay Formation, United Kingdom (Upper Jurassic): evidence from molybdenum isotopes and trace metal ratios [PDF]

, 2010
The Kimmeridge Clay Formation (KCF) and its equivalents worldwide represent one of the most prolonged periods of organic carbon accumulation of the Mesozoic.
Abbink, Ahmadi, Al-Suwaidi, Algeo, Algeo, Algeo, Anbar, Angela L. Coe, Anthony S. Cohen, Archer, Arnold, Barling, Bertrand, Chambers, Christopher R. Pearce, Cohen, Cohen, Cox, Crusius, Crusius, Demaison, Dunn, Emerson, Glennie, Gradstein, Hallam, Herbin, Hesselbo, Hesselbo, Huang, Jenkyns, Jenkyns, Jenkyns, Jenkyns, Kemp, Lallier-Vergès, Lallier-Vergès, Lees, Lees, Ling, Matthews, McArthur, McManus, Miller, Morford, Morgans-Bell, Neubert, Oschmann, Oschmann, Padden, Pearce, Pearce, Pearson, Piper, Poulson, Pálfy, Raiswell, Raiswell, Saelen, Schouten, Siebert, Siebert, Sinninghe Damsté, Taylor, Tossell, Tribovillard, Tribovillard, Tribovillard, Tribovillard, Tyson, Tyson, Tyson, van Dongen, van Kaam-Peters, van Kaam-Peters, Weedon, Weedon, Weissert, Wignall, Wignall, Wignall, Ziegler   +81 more
core   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

An Age Difference of 2 Gyr between a Metal-Rich and a Metal-Poor Globular Cluster

, 2013
Globular clusters trace the formation history of the spheroidal components of both our Galaxy and others, which represent the bulk of star formation over the history of the universe.
Anderson, J., Dotter, A., Fahlman, G. G., Hansen, B. M. S., Hurley, J. R., Kalirai, J. S., King, I. R., Reitzel, D., Rich, R. M., Richer, H. B., Shara, M. M., Stetson, P. B.   +11 more
core   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi, Ebrahim Norouzi, Kostiantyn Hubaiev, Jörg Waitelonis, Harald Sack   +4 more
wiley   +1 more source

Descendants of the first stars: the distinct chemical signature of second generation stars [PDF]

, 2018
Extremely metal-poor (EMP) stars in the Milky Way (MW) allow us to infer the properties of their progenitors by comparing their chemical composition to the metal yields of the first supernovae.
Frebel, Anna, Glover, Simon C. O., Griffen, Brendan, Gómez, Facundo A., Hartwig, Tilman, Ishigaki, Miho N., Ji, Alexander P., Klessen, Ralf S., Magg, Mattis, O'Shea, Brian W., Tominaga, Nozomu, Yoshida, Naoki   +11 more
core   +1 more source

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

Advanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar, Mohammad Kazemi, Zichang Xiong, Thomas Cameron, Julian Held, Uwe Kortshagen   +5 more
wiley   +1 more source

Trace metals in common marine foods of the Pacific Coast [PDF]

, 1971
Trace metal analysis of 23 species of common Pacific Coast marine foods revealed high cadmium values for Bent-nosed clams (Macoma nasuta), Bay mussels (Mytilus edulis), Bay oysters (Osrtrea lurida), Pacific oysters (Crassostrea gigas), and Littleneck ...
Tolan, Tod
core  

The Nature and Origin of Low-Redshift O VI Absorbers

, 2009
The O VI ion observed in quasar absorption line spectra is the most accessible tracer of the cosmic metal distribution in the low redshift ...
Adelberger, Adelberger, Anders, Asplund, Bahcall, Benjamin D. Oppenheimer, Bertone, Cen, Cen, Cen, Cen, Chen, Chen, Chieffi, Cole, Cooksey, Danforth, Danforth, Danforth, Davé, Davé, Davé, Davé, Davé, Davé, Davé, Erb, Fang, Fechner, Ferland, Finlator, Fox, Fox, Fox, Frank, Fujita, Fukigita, Fukugita, Furlanetto, Ganguly, Gnat, Hao, Heckman, Hinshaw, Impey, Janknecht, Joung, Kereš, Kereš, Kolmogorov, Larson, Lehner, Lehner, Lehner, Lopez, Mac Low, Maller, Martin, Murray, Navarro, O'Dell, Oppenheimer, Oppenheimer, Oppenheimer, Oppenheimer, Penton, Porciani, Prochaska, Prochaska, Rauch, Rauch, Richter, Richter, Romeel Davé, Savage, Savage, Schaye, Schaye, Sembach, Sembach, Sembach, Simcoe, Simcoe, Springel, Springel, Stocke, Sutherland, Thom, Thom, Tremonti, Tripp, Tripp, Tripp, Tripp, Tripp, Tripp, Tumlinson, Tumlinson, Weymann, Yoshida, Zech, Zheng   +101 more
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Distribution of heavy metals in sediments of Igbede, Ojo and Ojora rivers of Lagos, Nigeria [PDF]

, 2006
The distribution of some heavy metals, namely Cd, Pb, Zn, Fe, Cu, Cr and Mn in epipellic sediments of Igbede, Ojo and Ojora rivers of Lagos was studied weekly in the early summer (November) of 2003.
Adekoya , J. A, Ayejuyo, O. O, Williams, Akan B.   +2 more
core   +1 more source