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  • 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.
1

Treatment of a complex Arizona gold and silver ore

Manwaring, Edgar George Ross. Wilfley, Clifford Redman. January 1905 (has links) (PDF)
Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1905. / The entire thesis text is included in file. Typescript. Illustrated by authors. Title from title screen of thesis/dissertation PDF file (viewed November 20, 2008) E. G. R. Manwaring determined to be Edgar George Ross Manwaring and C. R. Wilfley determined to be Clifford Redman Wilfley from "Forty-First Annual Catalogue. School of Mines and Metallurgy, University of Missouri".
2

Treatment of gold and silver ores as found in the Comstock Lode

Grabill, Lee R. January 1878 (has links) (PDF)
Thesis--University of Missouri, School of Mines and Metallurgy, 1878. / The entire thesis text is included in file. Holograph [Handwritten and illustrated in entirety by author]. Title from title screen of thesis/dissertation PDF file (viewed September 12, 2008) L. R. Grabill determined to be Lee R. Grabill from the "1874-1990 MSM-UMR Alumni Directory".
3

The dissolution of gold colloids in aqueous thiosulfate solutions /

Zhang, Xin-Min. January 2008 (has links)
Thesis (Ph.D.)--Murdoch University, 2008. / Thesis submitted to the Faculty of Minerals and Energy. Includes bibliographical references (leaves 271-286)
4

A study to determine the best method of treatment for a certain gold-silver ore

Harris, Deane Dwight. Kline, Duane Montgomery. January 1912 (has links) (PDF)
Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1912. / The entire thesis text is included in file. Typescript. Illustrated by authors. Deane Dwight Harris received a Bachelor of Science degree in Metallurgical Engineering and Duane Montgomery Kline received a Bachelor of Science degree in Mining, both determined from "1874-1999 MSM-UMR Alumni Directory". Title from title screen of thesis/dissertation PDF file (viewed )
5

Origin and metal content of magmatic sulfides in Cu-Au mineralizing silicic magmas : Yanacocha, Peru and Yerington, Nevada /

Brennecka, Gregory A. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2006. / Printout. Includes bibliographical references (leaves 36-39). Also available on the World Wide Web.
6

The extraction of gold and silver from ore by the cyanide process

Frazier, Isaac Peter. Jamison, Claude Egan. January 1900 (has links) (PDF)
Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1900. / The entire thesis text is included in file. Typescript. Illustrated by authors. Degree awarded only to Isaac Peter Frazier. Title from title screen of thesis/dissertation PDF file (viewed )
7

The cyanidation of high grade gold and silver concentrate

Butler, Reginald Henry Brinton. Beard, John Warren. January 1900 (has links) (PDF)
Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1909. / Year degrees were granted determined from "Forty-First Annual Catalogue. School of Mines and Metallurgy, University of Missouri". The entire thesis text is included in file. Typescript. Illustrated by authors. Title from title screen of thesis/dissertation PDF file (viewed )
8

Characterization of the interface between prefabricated dental implant component and cast dental alloys

Sanli, Yurdanur, January 2007 (has links)
Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 147-151).
9

Symbolic jewels : the military sweetheart brooch in wartime Britain

Streeter, Penelope January 2018 (has links)
No description available.
10

Electron-nuclear dynamics in noble metal nanoparticles

Senanayake, Ravithree Dhaneeka January 1900 (has links)
Doctor of Philosophy / Department of Chemistry / Christine Aikens / Thiolate-protected noble metal nanoparticles (~2 nm size) are efficient solar photon harvesters, as they favorably absorb within the visible region. Clear mechanistic insights regarding the photo-physics of the excited state dynamics in thiolate-protected noble metal nanoclusters are important for future photocatalytic, light harvesting and photoluminescence applications. Herein, the core and higher excited states lying in the visible range are investigated using the time-dependent density functional theory method for different thiolate-protected nanoclusters. Nonadiabatic molecular dynamics simulations are performed using the fewest switches surface hopping approach with a time-dependent Kohn-Sham (FSSH-TDKS) description of the electronic states with decoherence corrections to study the electronic relaxation dynamics. Calculations on the [Au₂₅ (SH)₁₈]⁻¹ nanocluster showed that relaxations between core excited states occur on a short time scale (2-18 ps). No semiring or other states were observed at an energy lower than the core-based S₁ state, which suggested that the experimentally observed picosecond time constants could be core-to-core transitions rather than core-to-semiring transitions. Electronic relaxation dynamics on [Au₂₅ (SH)₁₈]⁻¹ with different R ligands (R = CH₃, C₂H₅, C₃H₇, MPA) [MPA = mercaptopropanoic acid] showed that all ligand clusters including the simplest SH model follow a similar trend in decay within the core states. In the presence of higher excited states, R= H, CH₃, C₂H₅, C₃H₇ demonstrated similar relaxations trends, whereas R=MPA showed a different relaxation of core states due to a smaller LUMO+1-LUMO+2 gap. Overall, the S₁ state gave the slowest decay in all ligated clusters. An examination of separate electron and hole relaxations in the [Au₂₅ (SCH₃)₁₈]⁻¹ nanocluster showed how the independent electron and hole relaxations contribute to its overall relaxation dynamics. Relaxation dynamics in the Au₁₈(SH)₁₄ nanocluster revealed that the S₁ state has the slowest decay, which is a semiring to core charge transfer state. Hole relaxations are faster than electron relaxations in the Au₁₈(SH)₁₄ cluster due its closely packed HOMOs. The dynamics in the Au₃₈(SH)₂₄ nanocluster predicted that the slowest decay, the decay of S₁₁ or the combined S₁₁-S₁₂, S₁-S₂-S₄-S₇ and S₄-S₅-S₉-S₁₀ decay, involves intracore relaxations. The phonon spectral densities and vibrational frequencies suggested that the low frequency (25 cm⁻¹) coherent phonon emission reported experimentally could be the bending of the bi-icosahedral Au₂₃ core or the “fan blade twisting” mode of two icosahedral units. Relaxation dynamics of the silver nanoparticle [Ag₂₅ (SR)₁₈]⁻¹ showed that both [Ag₂₅(SH)₁₈]⁻¹ and [Au₂₅ (SH)₁₈]⁻¹ follow a common decay trend within the core states and the higher excited states.

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