• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1533
  • 298
  • 199
  • 166
  • 108
  • 66
  • 38
  • 32
  • 22
  • 21
  • 20
  • 17
  • 17
  • 17
  • 17
  • Tagged with
  • 3089
  • 665
  • 333
  • 307
  • 270
  • 266
  • 220
  • 177
  • 174
  • 164
  • 155
  • 143
  • 141
  • 139
  • 132
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
181

Application of the flotation process to the treatment of tailings of gold mills

Gardner, George Delos, 1911- January 1933 (has links)
No description available.
182

The extraction of gold from special flotation concentrates

Houghton, Neal Doyle, 1916- January 1939 (has links)
No description available.
183

The removal of carbon from special flotation concentrates

Soulé, J. H. (John H.) January 1939 (has links)
No description available.
184

The effect of activated carbon on the rate of dissolving gold by cyanide

Loving, John Clyde, 1916- January 1941 (has links)
No description available.
185

The recovery of gold from flotation concentrates containing carbon by pyrometallurgical methods

Campbell, Claiborne McMillan, 1914- January 1942 (has links)
No description available.
186

The effect of grinding on the floatability of activated charcoal from ore pulps

King, Arthur Joseph, 1917- January 1946 (has links)
No description available.
187

Geology, Geochemistry and Geochronology of the East Bay Gold Trend, Red Lake, Ontario, Canada

Gallagher, Shaun 10 April 2013 (has links)
The Red Lake greenstone belt is considered to be one of Canada’s premier gold producing regions with the Red Lake Gold Mines having produced >24 million ounces of gold to date. The East Bay Trend is a large structural corridor that parallels the East Bay of Red Lake, Ontario and is interpreted to be a manifestation of the regional D1 structure that crosscuts this complexly folded greenstone belt. The southernmost 8 km of this corridor is host to a variety of small gold deposits that demonstrate an assortment of mineralization styles. This study aims to: (1) better define veining styles and characterize the mineralizing fluids using petrography, fluid inclusions, geochronology and stable isotopes, (2) compare barren and auriferous veins from deposits along the East Bay Trend, and (3) compare the fluid history of the East Bay Trend to the Campbell-Red Lake gold deposit to determine the gold potential along this trend.
188

Geochronology, Petrography, Geochemical Constraints, and Fluid Characterization of the Buriticá Gold Deposit, Antioquia Department, Colombia

Lesage, Guillaume Unknown Date
No description available.
189

DNA-inspired materials for 'bottom-up' nanotechnology

Ishihara, Yoshihiro. January 2007 (has links)
DNA is a remarkable material that is both an inspiration for polymer nanotechnology and a versatile building block for assembling well-defined nanostructures. To create polymeric materials that would be useful in nanotechnology, we synthesized block copolymers containing thymine and diamidopyridine side chains. These DNA-mimetic polymers self-assembled into spherical aggregates in solution, held together by hydrogen bonding interactions. We have reported the first example of a block copolymer micellar aggregate that is capable of selective recognition of small-molecule guests, with concomitant changes in its aggregation behavior. / In the field of DNA-mediated materials, the ordering of gold nanoparticle (AuNP) arrays can be hindered by the lability of AuNP-DNA linkages. In the search of an indefinitely stable AuNP-DNA linkage, three dendritic thiol-terminated DNA strands were synthesized, and were bound to AuNPs. A preliminary AuNP-DNA linkage lability study showed potential in forming nonlabile AuNP-DNA linkages through the use of dendritic thiol-modified DNA.
190

Geology, Geochemistry and Geochronology of the East Bay Gold Trend, Red Lake, Ontario, Canada

Gallagher, Shaun 10 April 2013 (has links)
The Red Lake greenstone belt is considered to be one of Canada’s premier gold producing regions with the Red Lake Gold Mines having produced >24 million ounces of gold to date. The East Bay Trend is a large structural corridor that parallels the East Bay of Red Lake, Ontario and is interpreted to be a manifestation of the regional D1 structure that crosscuts this complexly folded greenstone belt. The southernmost 8 km of this corridor is host to a variety of small gold deposits that demonstrate an assortment of mineralization styles. This study aims to: (1) better define veining styles and characterize the mineralizing fluids using petrography, fluid inclusions, geochronology and stable isotopes, (2) compare barren and auriferous veins from deposits along the East Bay Trend, and (3) compare the fluid history of the East Bay Trend to the Campbell-Red Lake gold deposit to determine the gold potential along this trend.

Page generated in 0.0291 seconds