Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 10627 for “"metal"”.
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Mobile metal-metal bonds in platinum metal sulfide clusters
… thesis presents experimental studies on platinum metal sulfido clusters.
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The role of metal ions in metal-on-metal total hip replacement
Abstract Role of Metal Ions in Metal on Metal Total Hip Replacement Metal-on-metal (MoM) total hip replacement (THR) offered theoretical advantages of decreased wear and increased functional outcomes. MoM bearings have been associated with sterile inflammatory masses and significant soft tissue …
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Metal transfer in gas metal arc welding
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1989.
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High-bias studies on metal-insulator-metal and metal-insulator-semiconductor tunnel junctions
… transition region"" separating the metal and the oxide. The aluminum-aluminum oxide interface is adequately characterized by a shallow impurity band. The high-bias behavior of silicon junctions is qualitatively described in terms of tunneling via the previously observed trapping …
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Reductive coupling, and, transition metal calixarene complexes : metal-metal quadruple bonds and pockets
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1995.
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Microplasma Transistor With Quasi Metal-Oxide-Semiconductor (mos)/metal-Insulator-Metal (Mim) Electron Emitters
Modeling of these devices entailed solving the differential form of Poisson's equation, subject to particle flux continuity of the cathode. Comparison of the model predictions with experimental estimates of the sheath potential shows agreement between the two to within 5% over the entire range in …
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Surface plasmons for enhanced metal-semiconductor-metal photodetectors
… a photon couples to the free electron gas of the metal at the interface between a metal and a dielectric. The extraordinary properties of SPP allow for sub-diffraction limit waveguiding and localized field enhancement. The emerging field of surface plasmonics has applied SPP coupling to a number …
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Metal Organic Frameworks with catalytically active Metal Nanoparticles
… is the investigation of catalytically relevant metal nanoparticles (MNP) stabilized in porous coordination polymers (PCPs) also called metal-organic frameworks (MOFs). The syntheses of the catalyst family MNP@PCP/MOF as well as the investigation of its catalytic activity are discussed in detail. …
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Metal-insulator-insulator-metal plasmonic waveguides and devices
Metal-insulator-metal (MIM) plasmonic waveguides have been proposed for highly integrated subwavelength structures. In this work, waveguiding and coupling of surface plasmon polaritons (SPPs) within finite planar MIM plasmonic waveguides are examined both theoretically and experimentally. Gain …
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Metal Thiolate and Metal Sufide Clusters in Proteins
Finally efforts towards the design of a biosynthetic model of Cu Z from N2OR are reported. The CuZ cluster is the first and only report to date of a copper-sulfide cluster in Nature. It fulfills a catalytic role in N2OR, performing the reduction of N2O to N2 and H2O during anaerobic respiration, …
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Metal-semiconductor-metal photodetectors for optoelectric receiver applications
Restriction data tranferred 2014-07-01T11:20:26-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission
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Modeling The Atomic And Electronic Structure Of Metal-Metal, Metal-Semiconductor And Semiconductor-Oxide Interfaces
… of three such 'canonical' material interfaces - Metal-Metal, Metal-Semiconductor and Semiconductor oxide interfaces.</p> <p>An important contribution of this thesis is the development of a novel TB model of the electronic structure of industrially relevant metals such as Cu, Ag, Au, Al. The model …
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Nonaqueous syntheses of metal oxide and metal nitride nanoparticles
… work, we have shown new strategies to synthesise metal oxide and metal nitride nanomaterials. The first part of the work deals with the study of nonaqueous synthesis of metal oxide nanoparticles. We succeeded in the synthesis of In2O3 nanopartcles where we could clearly influence the morphology by …
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Studying Transition Metal Chemistry inside a Metal-Organic Framework
Metal-organic Frameworks (MOFs) are porous, crystalline materials built from metal ‘nodes’ and interconnecting organic ligands. The combination of crystallinity, porosity and building block design allows MOFs to be tailored at the nanoscale and functionalised to suit specific applications. Reactive …
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Metal-containing and Metal-free systems for small molecule activation
… is to investigate small molecule activation with metal-containing and metal-free systems. Chapter 2 describes a tri-aryl benzene ligand scaffold for multimetallic N2 activation. A RuCp* complex was synthesized and characterized by NMR and X-ray crystallography. It offered an easy entry to …
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The Use of Metal and Metal Oxide Nanoparticles Against Biofilms
… hospital disinfectants has been well reported. Metal and metal oxide nanoparticles (NP) such as silver (Ag), copper (Cu), zinc oxide (ZnO) and copper oxide (CuO) exhibit antimicrobial properties against various pathogens. Methods: Biofilm formation of Pseudomonas aeruginosa and Staphylococcus …
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Synthesis and characterisation of metal oxides and metal doped variants
… <br></br><br></br>The unit cell size of the metal-doped ferrite, Fe<sub>3-x</sub>Sn<sub>x</sub>O<sub>4</sub>, 0 < x < 0.4, has been shown by X-ray powder diffraction(XRD) to increase linearly as tin content increases. Extended X-ray Absorption Fine Structure (EXAFS) show that the …
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