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 237 for “"TETRA"”.
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Structural opportunities of ETFE (ethylene tetra fluoro ethylene)
An exploration of ETFE (ethylene tetra fluoro ethylene) foil cushions was performed in its use for building cladding. ETFE foil cushions consist of alternating layers of ETFE film and air cavities. An inflation system pressurizes the foil cushions prestressing the film layers to carry applied load. …
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Synthesis and Characterization of Alkyl Tetra-, Tri-, and Triskaidecazirconates
The ambient temperature hydrolysis product of tetra-n-propyl orthozirconate was identified as [Zr3O](OPrn) 10 by 13C NMR spectroscopy and elemental analysis. Ethanolysis of [Zr3O](OPrn) 10 yielded the ethoxy derivative of the trizirconate which was characterized by 13C NMR spectroscopy and …
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Self-Assembly of Tetra-Anilines into Metal-Organic Architectures
… In particular, the subcomponent self-assembly of tetra-aniline subcomponents with 2-formylpyridine and Zn(II) cations. First, it will be demonstrated that rectangular tetra-anilines, even those with relatively high aspect ratios (i.e. they show significant deviation from a square), can assemble …
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Guanosine tetra and pentaphosphate metabolism in a slo mutant of Escherichia coli
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Experimental electrochemical investigation of Si/A1 in tetra-methyl ammonium hydroxide (TMAH)
This thesis considers the micromachining of silicon for the fabrication of micro-sensors, microactuators, and microsystems. At present it is problematic to anisotropically etch silicon, in wet etchants such as TMAK while protecting deposited aluminum layers. This is especially a problem in …
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Experimental investigation of anisotropic etching of silicon in tetra-methyl ammonium hydroxide
… etching of silicon in the relatively non-toxic tetra-methyl-ammonium hydroxide (TMAH). Using a temperature-controlled etch apparatus, basic etch rate experiments on both Sid and Sin confirm and extend previous literature results. Extensive underetch experiments shows that the TMAH is …
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Design, synthesis and biological evaluation of novel tetra-substituted quinoline-3-carboxamides derivatives
… of the project was the synthesis of novel tetra-substituted quinoline-3carboxamides and subsequent transformation to other novel derivatives and evaluation of their biological activities against malaria and cytotoxicity. In achieving the objective, 2-chloroquinoline-3-carbaldehyde analogues …
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Synthesis and characterisation of ligand-bridged tungsten and chromium penta- and tetra-carbonyl complexes
… or 3,6-di-2-pyridyl-l,2,4,5-tetrazine (DPT) have been synthesised. They were characterised using IR, UV-Vis and NMR, MS, TLC and microanalysis. Electronic spectral studies showed that both the dinuclear, [4(CO)CrDPTCr(CO)4] and mononuclear, [4(CO)CrDPT] complexes have MLCT …
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Structural studies of Copper Tetra-Tert-Butyl Phthalocyanine Langmuir-Blodgett and vacuum deposited films
… was employed to fabricate thzn films of Copper-Tetra-Tert-Butyl Phthalacyanine (CuTTBPc). However, CuTTBPc has a strong tendency to aggregate and hence inhibit the synthesis of uniform layers. It has been found that the incorporation of Arachidic Aczd (AA) can reduce the aggregation effect A …
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Antivirale Wirksamkeit des Chemokinrezeptorhemmstoffs 1,1’-bis-1,4,8,11-tetra-azazyklo-tetradekan bei Katzen mit feliner Immunschwächevirusinfektion
… chemokine receptor inhibitor 1,1’-bis-1,4,8,11-tetraazacyclotetradekan (AMD3100)“ Antiretroviral efficacy of the bicyclam 1,1’-bis-1,4,8,11-tetraazacyclotetradekan (AMD3100) alone or in combination with the acyclic nucleoside phosphonate (R)-9-(2-phosphonylmethoxyethyl)adenine (PMEA) was …
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Observations on the Rare-Earths: Chelates Derived From Diamine Tetra-Acetic and Tri-Acetic Acids
Made available in DSpace on 2014-12-05T19:36:44Z (GMT). No. of bitstreams: 1 0025230.pdf: 5110079 bytes, checksum: 023db3f76a9f21ad2e434248af983aa7 (MD5) Previous issue date: 1957
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Synthesis and Characterization of pure-phase Zr-MOFs Based on meso-Tetra(4-carboxyphenyl)porphine
… 2: The reaction of zirconium salts with meso-tetracarboxyphenylporphyrin (TCPP) in the presence of different modulators results in the formation of a diverse set of metal-organic frameworks (MOFs), each displaying distinct crystalline topologies. However, synthesis of phase-pure crystalline …
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Síntese e caracterização de sulfatos TRI e TETRA básico de chumbo e aplicação em acumuladores chumbo - ácido
… tais como sementes do sulfato de chumbo tri e tetrabásico (3BS e 4BS), pode melhorar a durabilidade e o aproveitamento do material ativo. Estes são os aspectos abordados no presente trabalho: a síntese de 3BS e 4BS e posterior aplicação como aditivo na produção da pasta a ser utilizada como …
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Development of Combinatorial Approaches Towards Selective Estrogen Receptor Modulators: Investigations of Acyclic Amides and Tetra-Substituted Pyrazoles
In addition, four basic side chain-containing pyrazoles that mimic potentially favorable orientations in the ER binding pocket were synthesized. Among the four sites for basic side chain incorporation, the C (5) piperidinylethoxy-substituted pyrazole was found to have the highest affinity and to be …
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Impactos de la implementación de la estrategia de Activity-Based Working, en el entorno organizacional de Tetra Pak Colombia.
Desde comienzos del año 2017, la empresa Tetra Pak decidió implementar en sus oficinas en Colombia, ubicadas en la ciudad de Bogotá D.C., una estrategia de origen sueco llamada Activity Based Working, la cual busca principalmente organizar la manera en cómo hacen normalmente su trabajo, para …
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N-(2,3,4,6-tetra-O-acil-β-D-glikopiranozil-karbonil)-N’-tozilhidrazin származékok előállítása és reakcióik N- és O-nukleofilekkel
Szakdolgozatom során a Debreceni Egyetem Szerves Kémiai Tanszék Kémiai Glikobiológiai Kutatócsoportjának C-glikopiranozil-formaldehid-tozilhidrazonok átalakítási lehetőségeinek tanulmányozására irányuló kutatásaiba kapcsolódtam be. Kutatómunkám során az említett tozilhidrazonok hipervalens jód …
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Progressive design and self-assembly of supramolecular architectures : based on metallamacrocyclic nickel(II) complexes with bipodal tetra-alkylaroylbis (thioureas)
Rationally designed bipodal3,3,3',3'-tetraalkyl-l,1'-benzoylbis(thioureas) are used as pre-programmed cheiating ligands to form metallamacrocyclic square planar nickel(ll) complexes via self-assembly. Metal : ligand stoichiometries of either 2:2 or 3:3 can be achieved by using meta- or para- …
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Magnetic and Electronic Properties of Di- and Tetra-Nuclear Mixed-Valence Iron Compounds and High-Spin Five-Coordinate Ferrous Macrocyclic Compounds
Made available in DSpace on 2014-12-13T20:10:21Z (GMT). No. of bitstreams: 1 7804197.pdf: 10969322 bytes, checksum: 567353d1227b18d8a5b9a2f76881d720 (MD5) Previous issue date: 1977
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Thermodynamic and Spectroscopic Studies of Some Metal Dimers
… in this study for three metal dimers including tetra-n-butyratodirhodium (II), tetra-n-butyratodiruthenium (II,III) chloride, and tetra-n-heptanatodicopper (II). These complexes were studied using a combination of calorimetry, epr spectroscopy, and uv-visible absorption spectroscopy.
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