Results 191 to 200 of about 2,593,769 (215)
Some of the next articles are maybe not open access.
Gold-197 Mössbauer spectra and the bonding of some gold–gold and gold–platinum clusters
J. Chem. Soc., Dalton Trans., 1989AbstractThe Moessbauer data for the gold‐containing clusters (I)‐(IV) are consistent with the known structures and with the descriptions of bonding.
D. Michael P. Mingos +4 more
openaire +3 more sources
Determination of gold in gold ores
Journal of Radioanalytical and Nuclear Chemistry Letters, 1989The gold content of placer gold flakes and gold bearing ores has been determined by instrumental neutron activation analysis /INAA/ and radiochemical neutron activation analysis /RNAA/. It was discovered that significant errors result in the instrumental method for gold flakes as small as 10 mg due to sample self-absorption of neutrons during ...
L. Parson, C. R. Keedy, J. Shen
openaire +2 more sources
2011
First published in 1883, this travel memoir describes the journey into West Africa undertaken by explorers Richard Burton (1821–90) and Verney Lovett Cameron (1844–94) in 1881. The mission for the two men was to assess the mining potential of the west coast, first observed by Burton in a publication that had appeared twenty years earlier. The first few
Richard Francis Burton +1 more
openaire +1 more source
First published in 1883, this travel memoir describes the journey into West Africa undertaken by explorers Richard Burton (1821–90) and Verney Lovett Cameron (1844–94) in 1881. The mission for the two men was to assess the mining potential of the west coast, first observed by Burton in a publication that had appeared twenty years earlier. The first few
Richard Francis Burton +1 more
openaire +1 more source
Gold nanospirals on colloidal gold nanoparticles
Journal of Colloid and Interface Science, 2019Synthesis of asymmetric nanostructures has always been a great challenge. In particular, there are only limited approaches for growing spiral nanowires in solution, and almost all of them require templates. Here, as a step in advancing the synthetic capability at the nanoscale, we report a wet chemistry template-free approach for growing hybrids spiral
Beibei Yu +6 more
openaire +3 more sources
Chem. Commun., 2010
The high stability of gold makes its surface an attractive substrate for the deposition of molecular materials and their functioning in devices. There are many substantial and profound experimental and theoretical issues that the use of any metal interacting with molecules requires to address.
Saendig N., ZERBETTO, FRANCESCO
openaire +3 more sources
The high stability of gold makes its surface an attractive substrate for the deposition of molecular materials and their functioning in devices. There are many substantial and profound experimental and theoretical issues that the use of any metal interacting with molecules requires to address.
Saendig N., ZERBETTO, FRANCESCO
openaire +3 more sources
The Economics of Gold and Gold Mining [PDF]
, 1987 Gold mining and placering reach back into antiquity to a time at least more than 4,000 years before our era. During primitive times the winning of gold was a haphazard activity, nuggets of the native metal being plucked from some auriferous stream, the oxidation zones of gold or sulfide deposits, or from residuum near such deposits.
openaire +1 more source