Index Catalog // ScholarsArchive@OSU

Aryl acetylene substituent effects : the synthesis and application of biaryls

Creator:: Naffziger, Michael R.
Abstract:: The work described herein details the synthesis and application of biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents on the aryl ring of the terminal acetylenic carbon. From this work, we successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps from inexpensive commercially...
Resource Type:: Masters Thesis
Full Text:: 1.5 References 1(a) Bringmann, G.; Mrtimer, A. J. P.; Keller, P. A.; Gresser, M. J.; Garner, J

Monitoring redox conditions with redox indicators during microbial reductive dechlorination in microcosms and bioaugmented columns

Creator:: Ruiz-Haas, Peter A.
Abstract:: New methods, sensors, and devices based on redox indicators were developed to monitor redox conditions in anoxic and anaerobic laboratory systems and the subsurface environment. The primary application was monitoring redox conditions during the dechlorination of tetrachioroethene (PCE) to ethene (ETH) in packed columns and microcosm bottles containing an enriched...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Peter A. Ruiz-Haas for the

Beginning the search for the inverse fission of uranium

Creator:: Beckerman, John R.
Abstract:: The nuclear reaction ¹⁰⁰Mo(¹²⁴Sn,xn)[superscript 224-x]U has been carried out at E[subscript cot] of 578 MeV and 634 MeV using the facilities and equipment at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory (ORNL) in order to initiate the search for the inverse fission of uranium. Reference...
Resource Type:: Masters Thesis
Full Text:: for possible evaporation residues. A bismuth target was employed to attempt to obtain a background

Structure-Property Relationships of Disordered Electronic Materials : From Crystalline to Amorphous

Creator:: Surta, Todd Wesley, Jr.
Abstract:: Two perovskite materials (Bi0.5(A)0.5)(Sc0.5Nb0.5)O3, where A = K+ and Na+ were synthesized phase pure for the first time. Their structures were determined by indexing synchrotron X-ray diffraction data and subsequent combined Rietveld refinement on neutron and synchrotron X-ray diffraction data revealing significant disorder on the A-sites of these materials. A...
Resource Type:: Dissertation
Full Text:: Jr. A DISSERTATION submitted to Oregon State University

Evaluation of sampling/preconcentration techniques and pyridine derivative reagents for fluorometric determination of chloroform and TCE in water

Creator:: Prayoonpokarach, Sanchai
Abstract:: A direct purge technique was developed for the determination of chloroform or trichloroethylene (TCE) in water samples. These volatile organic solvents are transferred from the water sample to a reagent where they are trapped and react to form products (Fujiwara chemistry) that are monitored fluorometrically. Chloroform in a water sample...
Resource Type:: Masters Thesis
Full Text:: Fluorometric Determination of Chloroform and TCE in Water Abstract approved: James D. Ingle, Jr. A direct

High quantum-yield phosphors via quantum splitting and upconversion

Creator:: Jeong, Joayoung
Abstract:: The Gd3+ ion has been used to induce quantum splitting in luminescent materials by using cross-relaxation energy transfer (CRET). In Nd:LiGdF4, quantum splitting results from a two-step CRET between Gd3+ and Nd3+, first involving a transition 6G→6I on Gd3+ and an excitation within the 4f3 configuration of Nd3+ followed by...
Resource Type:: Dissertation
Full Text:: pathways labeled a through j. Processes a through d are shown displaced downward by 2500 cm-1 reflecting

Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

Creator:: Vancheeswaran, Sanjay
Abstract:: At Site-300, Lawrence Livermore National Laboratory (LLNL), CA, trichloroethene (TCE) is present along with tetraalkoxysilanes such as tetrabutoxysilane (TBOS) and tetrakis(2-ethylbutoxy) silane (TKEBS), as subsurface contaminants. Intrinsic transformation of TCE to cis-dichloroethene (c-DCE) was observed in the groundwater at locations co-contaminated with TBOS or TKEBS. Attenuation of TBOS and TKEBS...
Resource Type:: Masters Thesis
Full Text:: .; Loebel, A.; Eirich, F., J. Am. Chem. Soc., 1950, 72, 5705-5712. (5) McNeil, K. J.; DiCaprio, J. A

Measuring in situ reductive dechlorination rates in trichloroethene-contaminated groundwater

Creator:: Hageman, Kimberly J.
Abstract:: Trichloroethene (TCE) is the most frequently detected organic contaminant in groundwater, is classified as a probable human carcinogen, and exhibits toxicological effects on the human endocrine, immune, developmental, and reproductive systems. While significant research efforts have been devoted to the development of strategies for remediating TCE-contaminated groundwater, their advancement is...
Resource Type:: Dissertation
Full Text:: DECHLORINATION RATES IN TRICHLOROETI{ENE-CONTAMINATED GROUNDWATER by Kimberly J. Hageman A DISSERTATION

Natural and semi-synthetic compounds with biocidal activity against arthropods of public health importance

Creator:: Khasawneh, Mohammad A.
Abstract:: This study identified new compounds with pest control activities. The two sources of candidates that were followed here were the main heartwood extract of Alaska Yellow Cedar (AYC) constituents and several semi-synthetic counterparts. Five compounds were isolated and identified for the first time in AYC heartwood in this research: two...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Mohammad A. Khasawneh for

Aqueous niobium chemistry at low pH : new precursors for oxide thin films

Creator:: Park, Deok-Hie
Abstract:: Phosphate and peroxide stabilize new oxo-hydroxo niobium clusters in water at low pH. The clusters open a new chapter in aqueous niobium chemistry under acidic conditions. The clusters also produce atomically smooth, amorphous niobium oxide phosphate (NbPOx) thin films. Reaction pathways from cluster solutions to amorphous niobium oxide phosphate solids...
Resource Type:: Dissertation
Full Text:: interpretation of FT-IR data in Chapter 5. Melanie A. Jenkins and Prof. John F. Conley Jr. contributed to the

ScholarsArchive@OSU

Aryl acetylene substituent effects : the synthesis and application of biaryls

Monitoring redox conditions with redox indicators during microbial reductive dechlorination in microcosms and bioaugmented columns

Beginning the search for the inverse fission of uranium

Structure-Property Relationships of Disordered Electronic Materials : From Crystalline to Amorphous

Evaluation of sampling/preconcentration techniques and pyridine derivative reagents for fluorometric determination of chloroform and TCE in water

High quantum-yield phosphors via quantum splitting and upconversion

Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

Measuring in situ reductive dechlorination rates in trichloroethene-contaminated groundwater

Natural and semi-synthetic compounds with biocidal activity against arthropods of public health importance

Aqueous niobium chemistry at low pH : new precursors for oxide thin films

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