Index Catalog // ScholarsArchive@OSU

Fundamental Studies of the Structure-Property Correlations of Na-ion and K-ion Storage in Non-Graphitic Carbon

Creator:: Li, Zhifei
Abstract:: Grid-scale energy storage systems are urgently needed to increase the flexibility and rigidity of the grid for modern society and take full advantage of the renewable green energy resources such as solar energy and wind energy. Na-ion batteries (NIBs) and K-ion batteries (KIBs) have been emerged as one of the...
Resource Type:: Dissertation
Full Text:: carbon by microwave heating a low-temperature (650˚C) pre-annealed hard carbon. After a brief microwave

Large volume (1,800 µL) injection HPLC/MS/MS for the quantitative determination of illicit drugs and human urinary biomarkers in municipal wastewater

Creator:: Chiaia Hernandez, Aurea C.
Abstract:: A sensitive, selective, rapid analytical method based on large-volume injection (LVI) liquid chromatography/ tandem mass spectrometry was developed using commercially-available hardware that eliminates the need for either off-line or on-line solid phase extraction. Centrifugation followed by the direct injection of 1,800 µL was used for the quantification of illicit drugs,...
Resource Type:: Masters Thesis

Certain aspects of electron and coupled energy transfer in cardiac muscle

Creator:: Kettman, John Rutherford
Abstract:: The first area of investigation involves the electron transport of sub-mitochondrial particles and their components. The second area is the synthesis of ATP and other energy linked reactions and components of the energy conservation and transfer apparatus. Investigations on the nature of the tetramethyl-p-phenylenediamine (TMPD) shunt indicated that tetrachlorohydroquinone (TCHQ)...
Resource Type:: Dissertation

Mobility of F centers in potassium chloride crystals containing divalent ions

Creator:: Halim, Ester Hung-Quei
Resource Type:: Dissertation
Full Text:: . Samples of KC1:02- crystals, after the mobility measurement were heated to 650°C for one minute, and

Relative influence of trans-Pacific and regional atmospheric transport of polycyclic aromatic hydrocarbons (PAHs) in the Pacific Northwest (PNW), USA

Creator:: Lafontaine, Scott
Abstract:: The relative influences of trans-Pacific and regional atmospheric transport on measured concentrations of polycyclic aromatic hydrocarbons (PAHs), PAH derivatives [Nitro- (NPAH) and Oxy-(OPAH)], organic carbon (OC), and Particulate Matter (PM) less than 2.5 μm in diameter (PM₂.₅) were investigated in the Pacific Northwest, USA in 2010-2011. Ambient high volume PM₂.₅...
Resource Type:: Masters Thesis
Full Text:: . Chapter 2. Yuling Jia performed the OC/EC analysis and some of the sample collection in 2010 at MBO

The effect of potassium pentachlorophenate on selected enzymes in fish

Creator:: Cheng, Jung Ta
Abstract:: Research on chemicals used as pesticides has been intensified because of current interest in the possible long range effects on the biota. It is vitally important to understand the action of these chemicals on the metabolism of animals and plants which have direct or indirect contact with pesticides. It has...
Resource Type:: Masters Thesis
Full Text:: 130 3 0.2 0.3 0.594 260 4 0.3 0.2 0.715 390 5 0.4 0.1 0.825 520 6 0.5 0.0 0.940 650 1 One Sigma

Stereospecific Synthesis of Stereotriad Motifs and Alkenes Using Enantioenriched sp³-Hybridized Carbenoids

Creator:: Xun, Sun
Abstract:: Enantioenriched sp³-hybridized carbenoid reagents CR1R2MX (X = nucleofuge, M = electrofuge) of different types were investigated for the synthesis of polysubstituted alkyl chains by iterative stereospecific reagent-controlled homologation (StReCH) and for the stereospecific connective synthesis of alkenes by eliminative cross-coupling. In the first part, putative enantioenriched α-chloroalkyllithiums (CHRLiCl) were employed...
Resource Type:: Dissertation

Aqueous chemistries for oxide electronics

Creator:: Meyers, Stephen T.
Abstract:: The variegated aqueous chemistries of metal cations are applied to the design and synthesis of non-toxic solution precursors suitable for additive printing of large-area oxide electronics. Polycondensation behaviors of aqueous Al+3 and PO4 +3 are manipulated in the deposition of atomically smooth amorphous aluminum oxide phosphate (AlPO) dielectric films. AlPO...
Resource Type:: Dissertation
Full Text:: acceptor states (QT); the conduction band (EC) remains largely empty (Figure 1.2b). With increasing

The ortho-para hydrogen conversion on iron oxide-zinc oxide catalysts

Creator:: Svadlenak, Rudolf Eldo
Resource Type:: Dissertation
Full Text:: after hesbing the catalyst mixture at Lj00° C, and one after heatin{ at 600 - 650° C. SLnultaneous

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:: ....................................................................................................43 2.1 Lab XRD data for A = K+ annealed at 650, 900, 950, and 1050°C temperatures

Integration methods for enzymatic analysis response curves which show maxima, minima or inflections

Creator:: Radke, Garold E.
Abstract:: Integration methods for enzymatic reactions were applied to transducer response vs. time curves which exhibit maxima, minima or inflections. The difference between the integral of the time dependent response and the initial response, often zero, is related to the initial enzyme activity or substrate concentration. Fluorescence response curves which exhibit...
Resource Type:: Masters Thesis

Organic cation exchange reactions of calcium montmorillonite

Creator:: Kupka, Frank
Resource Type:: Dissertation
Full Text:: ec::.an» e itcs were not uti1ze In the reaction. in his wor1 with X-ras olffracticn methods of

Trace element abundances in automobile exhaust particulate

Creator:: Jones, Roger A.
Resource Type:: Masters Thesis
Full Text:: unleaded 145 1200 2300 1300 1800 140 124-351 unleaded 65 650 1500 370 550 55 124-349 unleaded 130 1000

Preparation and properties of poly-L-tyrosyl acetamidinated ribonuclease

Creator:: Lynn, Jackson
Abstract:: Polypeptidyl derivatives of bovine pancreatic ribonuclease (RNase) containing two or three tyrosine chains with an average of two to three residues per chain have been prepared. The effects of various perturbants such as neutral salts, ethanol, urea and guanidine hydrochloride on the thermal transition of the derivatives have been studied....
Resource Type:: Dissertation
Full Text:: preparation (Pf-ec- Rl{lase II) was carried out in phosphate buf,fer under compa- rable conditi-ons as the

Solid state luminescent materials : new and improved

Creator:: VandenBerghe, Kenneth L.
Resource Type:: Masters Thesis
Full Text:: 0.8 0 0 0.6 Tt's a) eC ui 0.4 0 0.2 1.2 1.0 0.8 0.6 0.4 0.2 0.0 ' 0.0 120 140 160 180 200

Tracking semi-volatile organic pollutants in remote lake systems

Creator:: Usenko, Sascha
Abstract:: SOCs volatility and persistence properties cause many SOCs to become ubiquitous in the environment as well as accumulate in areas with lower temperatures such as polar or orographic regions. Many anthropogenic SOCs pose a serious risk to human and ecosystem health because of their persistent, bioaccumulative, and toxic properties in...
Resource Type:: Dissertation

Spectroscopic studies of matrix isolated molecules : I. The fluorosulfate radical : II. Cis-3, 4-dichlorocyclobutene : III. Cyclobutadiene

Creator:: Suzuki, Edward Masaru
Resource Type:: Dissertation

Molecular intensity parameters in the solid state

Creator:: Fredrickson, Larry R.
Resource Type:: Dissertation
Full Text:: ) and are presented below. R(TE) cos 0.-61 /2cos 0 1 x cos 0. -EC I /2co s 2 (18a) R(TM) E cos

Excited state molecular structural evolution and chemical reactivity studied by femtosecond stimulated Raman spectroscopy

Creator:: Han, Fangyuan
Abstract:: In this dissertation, my research work on excited state dynamics of small organic molecules in solutions is presented. Using femtosecond stimulated Raman spectroscopy (FSRS) as the main experimental tool, the excited state hydrogen-bonding dynamics (ESHBD) of Coumarin 102, a common laser dye molecule, in ethanol solution is examined with <150...
Resource Type:: Dissertation

Designing Dielectric Materials through Complex Metal Oxides

Creator:: Nikkel, Jason W.
Abstract:: This dissertation demonstrated that the electrical properties of complex oxide-based perovskite materials could be controlled through the careful modification of both material composition and structure. This was first shown through the modification of lead zirconate titanate (Pb(Zr0.52Ti0.48)O3, PZT) solid solutions with bismuth indate (BiInO3, BI) where the relative stability of...
Resource Type:: Dissertation
Full Text:: setups utilize a high temperature tube furnace (r.t. to >650°C capabilities

Total synthesis of (-)-7-epicylindrospermopsin

Creator:: Hansen, Joshua D.
Abstract:: The first asymmetric synthesis of (-)-7-epicylindrospermopsin via intramolecular nitrone cycloaddition is described. The synthesis utilized a convergent approach to prepare the cycloaddition precursor 176, which was assembled by condensation of hydroxylamine 175 with aldehyde 145. Hydroxylamine 175 was synthesized from ethylene glycol (166) in seven steps. Aldehyde 145 was completed...
Resource Type:: Dissertation
Full Text:: 50 ec at pH 7. After 10 weeks at 50 ec, an aqueous solution of cylindrospermopsin had degraded to 57

Comprehensive Analysis of The Brain Metabolome Using Mass Spectrometry in Conjunction with Data Analysis Techniques

Creator:: Khorani, Mona
Abstract:: Metabolomics has recently gained momentum in biomolecule research and complements the genomics and proteomics research space. Metabolomics strives to detect, identify, and quantify all metabolites present in biological samples. In particular, biomolecular analysis using ultra-performance liquid chromatography combined with mass spectrometry (UPLC-MS) has become increasingly important for metabolomic analyses. Similarly,...
Resource Type:: Dissertation
Full Text:: capitalized letter) were obtained from an in-house compound library consisting of >650 authentic standards

High-Energy Lithium-Sulfur Batteries and Non-Metallic Ion Aqueous Batteries: Integrating Experiment and Theoretical Modeling

Creator:: Shin, Woochul
Abstract:: Humanities have been craving more freedom and conveniences in whatever form. Carriages evolved to cars and ultimately to aircraft so that one can reach any place in the globe within a day. The mobile phone has enabled people to make a phone call without a need to find a phone...
Resource Type:: Dissertation

Preparation and Properties of Porous Carbon Materials

Creator:: Xing, Zhenyu
Abstract:: Porous carbon is indispensable in modern technology applications. It is used for energy storage, gas separation, water purification, catalyst support, and chromatography. The diversity of its applications stems from its unique properties, including high specific surface area, tunable pore volume, and chemical stability. Specifically, the large surface area provides high...
Resource Type:: Dissertation
Full Text:: Aulacoseira frustule with Mg(g) at 650 °C for 2.5 h. (c) Secondary electron image of a silicon-bearing

Vibrational and reorientational lifetimes in liquids determined by Raman spectroscopy

Creator:: Morgan, Larry G.
Abstract:: Studies of anisotropic and isotropic Raman line shape yield information about the rotational motion (rotational correlation function) and non-reorientational (vibrational) lifetimes. The rotational motion of carbon disulfide has been studied previously by the techniques of Raman spectroscopy (6, 43), Rayleigh scattering (43, 46) and direct measurement (47). This work was...
Resource Type:: Dissertation

Laser induced nonresonance atomic fluorescence observations in an analytical laser microprobe plume

Creator:: Pesklak, William Charles
Resource Type:: Masters Thesis
Full Text:: microprobe instrumentation allow the selection of a delay time from 5 to 650 microseconds with a resolution

Studies on hematin a, its interactions with poly-amino acids and apo-cytochrome c-oxidase

Creator:: Yong, Fook-Choy
Resource Type:: Dissertation
Full Text:: Rc _ ------- ., I 11' -40 .1 250 t o Fig. =or? T . _.1 3.J 3, 4 4 5f,) ec

Design and application of a microcomputer automated multielement flame atomic fluorescence instrument

Creator:: Neyzari, Shahrokh Ghaffari
Abstract:: An automated multielement flame atomic fluorescence (AF) spectrometer based on microcomputer control was constructed to determine four elements simultaneously. The instrument employs a multiple exit slit monochromator where the light from various exit slits is directed to a single detector with a mirrored funnel. Each element is excited to fluoresce...
Resource Type:: Dissertation

Higher valence compounds of iron

Creator:: Schreyer, James Marlin
Resource Type:: Dissertation

Chemical and physical influences of the atmosphere upon the spatial and temporal characteristics of atomic fluorescence in laser microprobe plumes

Creator:: Lewis, Arnold Leroy
Abstract:: The temporal and spatial characteristics of the plume produced by a laser microprobe, are dependent upon the composition and pressure of the atmosphere surrounding it. It has been shown that certain atmospheres can enhance the analytical signal by increasing the free atom lifetime. Improvements were made to the existing laser...
Resource Type:: Dissertation

Microcomputer controlled chemical and radiochemical separations and analysis

Creator:: Bennett, Casey Wayne
Abstract:: An automated radiochemical flow analysis (ARFA) system was developed which integrates chemical and radiochemical techniques into one system through the use of a microcomputer. The operator, through the microcomputer, controls valves and pumps to transfer sample and reagent solutions to counting loops, ion exchange columns and holdup reservoirs. A Ge(Li)...
Resource Type:: Dissertation

New Graphite Intercalation Chemistry with Alkaline Earth Metals

Creator:: Xu, Wei
Abstract:: Novel graphite intercalation compounds (GICs) and associated chemistry have been explored, specifically: (1) containing alkyl- substituted imidazolium cations; (2) a series containing alkaline earth metal (Mg, Ca, Sr, Ba) cations with ethylenediamine (en) co-intercalates; (3) showing reversible intragallery M-M bonding and (4) via electrochemical intercalation of Mg cations with potential...
Resource Type:: Dissertation

The synthesis and characterization of novel materials for use in secondary lithium-ion batteries

Creator:: Nafshun, Richard L.
Resource Type:: Dissertation

A study of the oxide/solution interface by capacitance measurements of electrolyte/oxide/semiconductor structures and potentiometric titrations of colloidal oxide suspensions

Creator:: Hindagolla, Suraj L.
Abstract:: The oxide/electrolyte solution interface has been studied experimentally by two methods, and a mathematical model for the interface has been developed. The change in interfacial potential with solution composition was determined through the capacitance of electrolyte/oxide/semiconductor (EOS) structures and the charge through potentiometric titrations of colloidal oxide suspensions. The differential...
Resource Type:: Dissertation

X-ray structure studies of oriented phospholipid multilayers

Creator:: Lytz, Robert Keith
Abstract:: Lamellar x-ray diffraction was studied from thin films of L-α-1,2-dipalmitoyl lecithin (DPL) and a 1:1 mixture (BrDPL) of L-α-l-palmitoyl-2-(9- bromopaimitoyl) lecithin and its 10-bromo analog. The specimens had high lamellar order, with an upper bound on the mosaicity of 6 mrad (0.4°) for DPL and BrDPL. With various water contents,...
Resource Type:: Dissertation

Single crystal growth, powder synthesis and characterization of layered chalcogenide semiconductors

Creator:: Richard, Annette Pauline
Abstract:: This thesis presents basic studies, including structural, optical and transport measurements, on novel chalcogenide powders and single crystals. BiCuOSe crystals have been synthesized for the first time. The crystal structure of BiCuOSe has been refined and the optical band gap has been measured to be 0.83eV. Crystal structure refinements of...
Resource Type:: Dissertation
Full Text:: the p- type material to its respective conduction band, EC. As a result of the band bending, due

Analytical and mechanistic studies of the chemiluminescence oxidation of hydroxy-containing compounds

Creator:: Vasquez de Montalvo, Socorro I.
Abstract:: This thesis is concerned with the development and use of routine analysis techniques based on chemiluminescence (CL) detection for: 1) ethanol in gin down to the 0.3% (v/v) level; 2) the antioxidants propyl gallate and BHA in lard to levels as low as 0.3 and 0.2 mg/L, respectively; 3) pyrogallol...
Resource Type:: Dissertation

A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation

Creator:: Dewald, Lamar Robert
Abstract:: An automated instrument based on a single-board microcomputer was developed for use in voltammetric analyses. Operator input of numerous experiment parameters allows any type of voltammetric analysis to be implemented and multiple scans to be run unattended. A three operational amplifier potentiostat is used to control the cell voltage and...
Resource Type:: Dissertation

Substitutional Effects on the Electromechanical Properties of Lead-free, Piezoelectric (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT)

Creator:: McQuade, Ryan R.
Abstract:: This work investigates the effect of cation substitution on the properties of the lead-free, solid solution (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT). Substitution into NBT-BT increases disorder and increases the relaxor ferroelectric properties. These relaxor ferroelectric materials show large piezoelectric strains that can be utilized in actuator applications. Ceramic samples were prepared using standard...
Resource Type:: Dissertation
Full Text:: field (Ec). [22] The saturated polarization, Ps, can be found by extrapolating the linear, top

Electrical and optical properties of potassium chloride single crystals containing lead ion

Creator:: Holmes, Robert Edward
Abstract:: A survey of the methods of purification of KC1, for use in preparing single crystals by growth from the melt, was made. Two methods, fractional recrystallization and ion exchange, were used. The purity of the salt and crystals grown from the same salt were compared with the findings of other...
Resource Type:: Dissertation

Synthesis and structural characterization of graphite intercalation compounds (GICs)

Creator:: Zhang, Xuerong
Resource Type:: Dissertation

A study of simultaneous diffusion of Ca²⁺ and Sr²⁺ in alkali chlorides

Creator:: Machida, Hisashi
Abstract:: The simultaneous diffusion of Ca 2+ and Sr 2+ ions in purified single crystals of KC1 and NaC1 was studied over the temperature ranges from 451°C to 669°C in KC1 and from 448°C to 683°C in NaCl. A radioactive tracer technique was used in two types of measurements: diffusion from...
Resource Type:: Dissertation

Preparation and investigation of model surfaces for the study of Ziegler-natta catalysis

Creator:: Mischenko, John
Abstract:: Single crystal surfaces can be used as substitutes or models for the actual reactive surfaces of heterogeneous catalysts. The advantage in using such models is that the reaction of interest can be isolated on the particular face of the crystal that is thought to be catalytically active. A variety of...
Resource Type:: Dissertation
Full Text:: 5x10-5 torr with the sample temperature raised to 650 C. The Ar ion beam energy was set at either 500

Aqueous complexation of citric acid and DTPA with selected trivalent and tetravalent f-elements

Creator:: Brown, M. Alex
Abstract:: Carboxylic acids have played an important role in the field of actinide (An) and lanthanide (Ln) separations and the reprocessing of irradiated nuclear fuel. Recent bench-scale experiments have demonstrated that 3-carboxy-3-hydroxypentanedioic acid (citric acid) is a promising aqueous complexant that can effectively aid in the separation of transition metals from...
Resource Type:: Dissertation

Analytical chemiluminescence measurements and instrumentation

Creator:: Marino, Dean Frank
Resource Type:: Dissertation

Studying fusion reactions for effect of PCN on heavy nucleus formation and for nuclear structure effects

Creator:: Naik, Radhika
Abstract:: The fusion reaction ²⁰⁸Pb (⁵⁰Ti, xn) ²⁵⁸⁻x Rf (x = 1-3) was studied to determine PCN (probability that the mononucleus system evolves to form a compound nucleus inside the fission saddle point) and to establish the value of Wsur (survival probability) for the given reaction experimentally. The fission excitation function...
Resource Type:: Dissertation

Substitution Effects on the Structure and Electronic Behavior of Ternary Precious Metal Oxides

Creator:: Flynn, Joshua
Abstract:: Due to the high cost of precursor materials, complex oxides of 4d and 5d transition metals are under-studied compared to their 3d counterparts. Recent studies have shown that oxides containing heavier transition metals can exhibit exotic electronic states due to presence of strong spin-orbit coupling. The goal of this dissertation...
Resource Type:: Dissertation

Hydrogen/deuterium exchange mass spectrometry as a technology platform for studying conformational dynamics in large protein complexes

Creator:: Nirudodhi, Sasidhar N.
Abstract:: Proteins are essential to all biological systems. Proteins participate in numerous cellular processes by interacting with other proteins, other metabolites and membranes in a dynamic environment. Studying the structural and conformational properties of proteins in the solution phase is necessary to understand their protein folding and interaction dynamics. This research...
Resource Type:: Dissertation

Sample entraining multi-electrode plasma sources for atomic emission spectroscopy

Creator:: Lee, Gae Ho
Abstract:: Plasma sources with multiple electrodes have been developed and characterized in this research for atomic emission spectroscopy. Multi-electrode plasma sources use electrodes to shape the plasma in order to continuously entrain a sample stream in the center of hot plasma, in a manner similar to an inductively coupled plasma (ICP)...
Resource Type:: Dissertation

Characterization and applications of polyphenol chemiluminescence reactions and flow cell instrumentation

Creator:: Miller, Robert J. (Robert James), 1933-
Resource Type:: Dissertation

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