Physical Sciences and Mathematics Commons^™

Analysis Of Coal Fractions Using Dibromotriphenyl-Phosphorane: A Selective Ether Cleaving Reagent, Michael L. Ballard

Masters Theses

Dibromotriphenylphosphorane (DTP), in acetonitrile at 40°C, was found to cleave benzyl phenyl ether in preference to di-alkyl or other aryl alkyl ethers. Competition between 10 mmoles benzyl phenyl ether and 10 mmoles di-n-octyl ether for 0.92 mmole of DTP gave 48% cleavage of benzyl phenyl ether and 1.3% cleavage of di-n-octyl ether based on DTP. Reaction of benzyl phenyl ether and di-n-octyl ether separately with DTP at 40°C produced 80% and 8% cleavage, respectively. Reactions of DTP with diphenyl ether, butyl phenyl ether, phenyl cyclohexyl ether and benzyl benzoate at 40°C produced less than 3% cleavage in all cases.

Reaction …

Controlling The Number Of Metal Sites To Which A Polytertiary Phosphine Coordinates In Tungsten Carbonyls, Rodney D. Borger

Masters Theses

Judiciously selected coordinated fragments of Ph₂PCH₂CH₂PPhCH₂-CH₂PPh₂ [(OC)₅WPPh₂H, (OC)₅WPPh₂CH=CH₂ and (OC)₅WPPh(CH=CH₂)₂] were used to construct its five possible nonchelated pentacarbonyltungsten complexes. These are the trimetallic (OC)₅WPPh[CH₂CH₂PPh₂W(CO)₅]₂ and the two pairs of constitutional isomers, (OC)₅WPPh[CH₂CH₂PPh₂]₂ and (OC)₅WPPh₂CH₂CH₂PPhCH₂CH₂PPh₂, and PPh[CH₂CH_{2 …}

Cis Labilization: A Study Of The Reactions Of Group 6 Pentacarbonyl Phosphido Anions, Matthew J. Madigan

Masters Theses

The synthesis of cis-(OC)₄M(PPh₂H)L (M=Cr,Mo,W; L=PPh₃,PPh₂Et,PPhEt₂,PEt₃) can be achieved by treating (OC)₅MPPh₂H with potassium tert-butoxide in the presence of L. […] The products are easily isolated and are not contaminated with trans isomers. Obtained as a minor product is [(OC)₄MPPh₂]₂.

The reaction of (OC)₅WPPh₂H with potassium tert-butoxide generates [(OC)₅WPPh₂]^- which reacts with (OC)₅WPPh₂H to give [(OC)₅WPPh₂W(CO)₅] …

Pyridine Hydrogen Iodide As An Ether Cleaving Agent In Coal Chemistry, Agnes Mei-Ying Chen

Masters Theses

Reactions of several phenyl ethers and an ester with pyridine hydrogen iodide were examined under various conditions as model studies for the recently reported molecular weight reduction of a fraction of Illinois No. 6 coal by hydrogen iodide in pyridine at 50°.

No ether or ester cleavage was observed at 60-80° in pyridine, acetonitrile, ethanol or the absence of solvent. Sealed tube reactions at 210° resulted in cleavage to phenol plus various hydrocarbon and alkyl halide products. Pyridine and benzyl phenyl ether at 210° produced no cleavage in the absence of hydrogen iodide.

Syntheses of crystalline pyridine hydrogen iodide and …

The Distribution And Relative Abundance Of Aquatic Oligochaeta In The Upper Cache River System, Southern Illinois, In Relation To Water Quality, Mark Julian Wetzel

Masters Theses

Species composition, distribution, abundance, and water quality relationships of aquatic oligochaetes occurring in the upper Cache River system, southern Illinois were investigated. Forty-two taxa of oligochaetes including 16 naidids, 22 tubificids and representatives of the families Aeolosomatidae, Branchiobdellidae, Enchytraeidae, and Lumbriculidae were collected. Four species of oligochaetes new to Illinois, Limnodrilus psammophilus Loden, L. rubripenis Loden, Psammoryctides (Spencerius) californianus Brinkhurst, and Haemonais waldvogeli Bretscher were collected during this study. Another species of Limnodrilus new to science is reported here, as yet undescribed. The thesis that aquatic oligochaetes can be used as true water quality indicator organisms is rejected. It is …

Relationship Of Gravity Anomalies To A Drift Filled Bedrock Valley System In Calhoun County Michigan, James W. Farnsworth

Masters Theses

Gravity geophysics along with well data were used to delineate and map the locations of buried river valleys in Calhoun County, Michigan. The valleys are filled with thick sequences of glacial fluvial deposits which can serve as important aquifers.

One hundred and sixty-four gravimeter observations were made at approximately one-quarter mile intervals in a 35 square mile area. Four short-interval profiles were also established perpendicular to suspected valleys. A three-dimensional trend surface polynomial was fitted to the total Bouguer anomaly to approximate the regional effect of gravity. By comparing the observed residual gravity to theoretically derived anomalies, models were developed …

Petrologic, Mineralogic, And Ion Exchange Characteristics Of The Rome Formation And Pumpkin Valley Shale On The Oak Ridge National Laboratory Reservation, Oak Ridge, Tennessee, Janine Gajda Sledz

Masters Theses

Two outcrops of the Rome Formation and lower Conasauga Group, located on the Oak Ridge National Laboratory Reservation were studied with respect to their petrologic, mineralogic, and ion exchange characteristics. Twenty-eight sample pairs (a pair consisted of a fresh and weathered segment) were taken from each outcrop.

The agrillaceous samples were analyzed by x-ray diffraction and the remaining samples by thin section analysis. Using an ammonia electrode, CEC values were determined for all argillaceous samples and selected non-argillaceous samples. Porosity determinations of the fresh segments of the sandstones and siltstones were made, using 100to 12 micron thick petrographic sections.

X-ray …

Variations In The Depositional Environment Of The Lower Cincinnatian Kope Formation, Thomas K. Mahan

Masters Theses

In northern Kentucky, the Upper Ordovician (Lower Cincinnatian) Kope Formation outcrops as a series of interbedded, laterally discontinuous limestone lenses and beds enclosed in a silty shale unit. Six stratigraphic sections within a 20-mile radius were sampled and measured and two of these were described in detail to characterize the variations in the environmental setting wherein the Kope Formation was deposited.

The shale lithology is homogeneous throughout this formation whereas the bioclastic limestones vary widely in faunal composition, texture, cross-sectional shape, and thickness. Apparently, the depositional style for the fine-grained, terrigenous sediment remained almost constant through Early Cincinnatian time, whereas …

Development Of A System For Water Quality Analysis Using Particle Induced X-Ray Emission, James Albert Andrus

Masters Theses

Particle induced x-ray emission (PIXE) has been in use for several years at Western's accelerator laboratory. Its primary purpose has been to provide trace element analysis of various types of solid samples. The analysis of water samples has not been done because of problems involving target preparation for the accelerator. A process called vapor filtration, developed at Purdue University, allows adequate sample preparation for the accelerator. This process is being adapted for use here at WMU. When completely operational, this system will give the WMU accelerator program the additional capability of performing water quality analyses to concentrations of parts per …

A Study Of The Target Thickness Effect For Chlorine On Germanium From 25 To 49.5 Mev, James Robert Slusser

Masters Theses

No abstract provided.

A Column For The High Pressure Liquid Chromatography Of Some Potentially Hazardous Metal Ions, Stephen R. Friebe

Masters Theses

No abstract provided.

Synthesis And Reactivity Of Some Fe(0) And Ru(0) Compounds, Michael E. Hawkins

Masters Theses

The catalytic activity of the compounds used in this study, Ru[P(C₆H₅)₃]₄ (η²-CH₃CN)⋅CH₃CN, Ru(CO)[P(C₆H₅)₃]₃CH₃CN, Ru(CO)₂[P(C₆H₅)₃]₃, Fe(CO)₂[P(C₆H₅)₃]₃ was compared using the isomerization of allylbenzene to β-methylstyrene as the test reaction. The measured decreasing order of reactivity for these complexes is: Ru(CO)[P(C₆H₅)₃]₃CH₃CN > Ru[P(C₆H₅)₃]₄ (η …

The Removal Of Viruses From Water By Conventional Water-Treatment Practices, Janet S. Ziegle

Masters Theses

The purpose of this investigation was to determine the effectiveness of conventional water-treatment methods in removing viruses from raw water sources. Those processes studied included alum flocculation, rapid sand filtration of fleeced and unflocced water samples, and chlorine disinfection.

This study was approached using coliphage f2 as a seeded indicator of treatment efficiency. Coliphage f2 was chosen as an indicator because of its similarities to enteric viral pathogens in both morphology and sensitivity to water-treatment processes. Coliphage f2 was found to occur naturally in surface waters, but not in numbers sufficient to interfere with calculations.

A sand filter for laboratory …

The Effects Of N-Serve On The Availability Of Urea And Ureaformaldehyde Nitrogen On Lolium Perenne L., Ronald E. Schroll

Masters Theses

Laboratory experiments were conducted to determine the effect of "N-Serve" (DOW) on the availability of urea nitrogen and the subsequent greening effect on perennial ryegrass (Lolium perenne L.) seedlings as compared to the availability of nitrogen and subsequent greening from a controlled release ureaformaldehyde fertilizer. A low organic matter sandy loam soil and a high organic matter clay loam soil were used in this study. Soil treatments of urea and ureaformaldehyde fertilizers were applied and incorporated at concentrations of 0, 25, 38, and 50 ppm-N. N-Serve at concentrations of 0.25, 0.50, and 1.0 ppm active ingredient were applied and …

Repopulation Of Fishes In Riley Creek, Coles County, Illinois Following Nitrogen Fertilizer Pollution, Kim James Carney

Masters Theses

The repopulation of stream fishes was studied from 17 May 1979 to 25 October 1979 following a major kill (100% mortality) caused by nitrogen fertilizer pollution in Riley Creek, Coles County, Illinois. The extent of recovery was determined by comparing post-kill collections with pre-kill survey data that was collected on 25 October 1978.

Repopulation began six days after the abatement of the pollution source. It is suggested that the initial source of repopulation was from the nearest undamaged tributary. The first three reinhabitants in order of appearence were: stonerollers (Campostoma anomalum); creek chubs (Semotilus atromaculatus); and …

A Numerical Method For The Solution Of The Schrödinger Equation By A Trial Wavefunction Improvement Formula, Chun-Sheng Ko

Masters Theses

A numerical method and corresponding computer algorithm for solving the one-dimensional radial Schrödinger equation to any desired accuracy is developed. The method uses a finite difference scheme in which an initial trial wavefunction is digitalized over a lattice covering the region of integration. The values of a rough solution are then altered at each lattice point by a simple improvement formula decreasing the value of the variational energy until the desired minimum is reached. The accuracy of these solutions depends only on the grid size. This method is characterized and tested with a harmonic oscillator potential. Practical evaluations and applications …

Fossil Algae In The St. Louis Limestone, Near St. Louis, Missouri, Sherris Ragsdale Myers

Masters Theses

"Although Mississippian algae research is fairly extensive, little has been published on algae from the Mississippian type locality, the Upper Mississippi River Valley. For this study, portions of sixteen St. Louis Limestone stratigraphic sections containing units with oncolites, domal stromatolites, laminations, or mottled (possibly algal) textures, were measured, described, and sampled to determine: (1) to what extent algae are preserved in the St. Louis Limestone, (2) if enough of the delicate structure was fossilized to determine morphology, (3) depositional environment of the algae, and (4) if the algae are related to a lithologic pattern. Thin sections of the sampled units …

Structural And Petrologic Comparison Of The Southern Sapphire Range, Montana With The Northeast Border Zone Of The Idaho Batholith, Stacy Lon Clark

Masters Theses

No abstract provided.

Kinetic Study Of The Formation Of Mixed Ligand Complexes Formed From Triethylenetetramine Nickel (Ii) And Bidentate Ligands, Burtrand Insung Lee

Masters Theses

No abstract provided.

The Neutron Total Cross Section Of 208Pb, Lawrence J. Satkowiak

Masters Theses

No abstract provided.

Analysis Of Mixtures Of Chlorine, Chlorine Dioxide And Chlorite, Ying-Chien Chu

Masters Theses

No abstract provided.

Development Of An Integrated Program Of Water Reuse In A Pulp And Paper Mill, Zafar M. Chaudhri

Masters Theses

No abstract provided.

Analysis And Interpretation Of The 5,000 Ft (1,538 M) Red-Bed Sequence Encountered In The Sparks Et Al. #1-8 (Michigan Basin Deep Borehole), John H. Fowler

Masters Theses

A 5,000 ft (1,538 m) pre-Mt. Simon (Upper Cambrian) red-bed sequence, encountered in the Gratiot County deep borehole (Sparks et al. #1-8) and herein named the North Star Formation, consists of undeformed recurring beds of immature arkosic sandstone 2 to 34 in (5 to 85 cm) thick. These beds grade upward from erosional basal contacts into mudstone units 1 in to 12 ft (3 cm to 3.8 m) thick. Within the sandstones, grading, horizontal lamination, and crossstratification define Bouma intervals "a", "b", and "c", which combine to form incomplete Bouma sequences. Mudstones exhibit abundant horizontal laminations. Secondary sedimentary structures (load …

A Comparison Of Several Methods For Solving Second-Order Damped Systems Of Ordinary Differential Equations, Vickie Lynch

Masters Theses

No abstract provided.

Foods Of Black Bears In The Great Smoky Mountains National Park, Thomas C. Eagle

Masters Theses

Seasonal patterns of food utilization by black bears (Ursus americanus) in the Great Smoky Mountains National Park were determined by sampling 86 composites of 646 scats during 1976 and 1977. Five seasonal patterns based on composition of the diet were identified. Major plant food items were grass (Graminae) and other herbaceous material ; squawroot (Conopholis Americana) ; fruits of serviceberry (Amelanchier arborea laevis) , blackberry (Rubus sp.) , huckleberry (Gaylussacia sp.) , blueberry (Vaccinium sp.) , black cherry (Prunus serotina) , fire cherry (P. pennsylvanica) , and sassafras (Sassafras albidum) ; and acorns (Quercus sp.) . Plant foods composed 80% …

Photon Counting System For The Determination Of Creatine Phosphokinase, Steven E. Dueball

Masters Theses

No abstract provided.

Geology Of The Central Peloncillo Mountains, The North Third Of The Pratt Quadrangle, Hidalgo County, New Mexico, Dennis J. Gebben

Masters Theses

No abstract provided.

Photoconductivity And Photovoltaic Studies On Some Ii-Vi Compounds, Challa Nagesh

Masters Theses

The photoconductivity spectra of ultra-pure single crystals of CdS in the range 500-575 nm, CdSe in the range 700-900 nm, ZnSe in the range 420-570 nm and ZnS in the range 300-450 nm have been studied using an improved A.C. method of detection. The sensitivity of the apparatus is high enough to study weak photoconductors like ZnS. The photoconductivity spectrum of each substance showed a peak at the wavelength corresponding to the energy band gap of the substance. The energy band gaps obtained from the spectra are 2.35 eV for CdS, 1.6 eV for CdSe, 2.7 eVfor ZnSe and 3.6 …

Postglacial Environmental History Of A Marl Lake Site In Kalamazoo County, Southwestern Michigan, Valerie A. Naeve

Masters Theses

The depositional and ecological history of Oakland Bog, a relic Wisconsinan (16,500+300 years B.P.) lake site is interpreted from pollen stratigraphy, molluscan faunal assemblages and sediment facies. The lake basin, which probably formed after the melting of a late Wisconsinan buried ice block in the Kalamazoo Moraine Complex, is irregular, steep-sided and floored by glacial till. The till is overlain by as much as 7.6 meters of lacustrine marls which extend over an area of nearly 0.5 km². Basal marls are characteristically medium gray, clayey, and contain abundant calcified stem fragments of charophytes; however, the overlying marls display …

Hydrogeology Of The Minjur Aquifer System In The Riyadh Region, Saudi Arabia, Ibrahim A. Al-Jallal

Masters Theses

No abstract provided.