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Articles 19261 - 19290 of 19508
Full-Text Articles in Physical Sciences and Mathematics
Photon Counting System For The Determination Of Creatine Phosphokinase, Steven E. Dueball
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
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
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
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
Hydrogeology Of The Minjur Aquifer System In The Riyadh Region, Saudi Arabia, Ibrahim A. Al-Jallal
Masters Theses
No abstract provided.
A Computer Simulation Study Of Seven Pairwise Comparison Procedures: Imbalanced Case, Wayne S. Petroelje
A Computer Simulation Study Of Seven Pairwise Comparison Procedures: Imbalanced Case, Wayne S. Petroelje
Dissertations
No abstract provided.
A Feasibility Study Concerning The Use Of Alternate Energy Sources In Taiwan, Li-Juan Lee
A Feasibility Study Concerning The Use Of Alternate Energy Sources In Taiwan, Li-Juan Lee
Masters Theses
No abstract provided.
Nmr Instrumentation With Solid State Devices, Syed M. Ahmed
Nmr Instrumentation With Solid State Devices, Syed M. Ahmed
Masters Theses
No abstract provided.
Geology Newsletter- 1978, Department Of Geology
Geology Newsletter- 1978, Department Of Geology
Geological and Environmental Sciences News
Vol. 1, No . 4
- Dear Alumni and Friends
- Here and There This and That
- Faculty News
- Graduate Students 1977-78
- Former Faculty
- Colorado River Trip Alumni
- Geology Development Fund
Structural Effects On Micellar Catalyzed Reaction Of Hydroxamic Acids, Nop Utrapiromsuk
Structural Effects On Micellar Catalyzed Reaction Of Hydroxamic Acids, Nop Utrapiromsuk
Masters Theses
Introduction
For many years scientists have tried to find a model which resembles a biological system, so that they can use this model for studying biological systems in human and in living organisms. Micelle systems provide the environment to mimic enzyme systems to some degree.1
Soaps and detergents generate micelles. Soaps and detergents have been used as cleansing agents for a long time. Their cleansing properties are related to micelle formation. Actually, soap is simply a mixture of sodium salts of long chain fatty acids, R-COO- Na+, and some detergents are general sodium salts of straight …
The Effects Of Electron-Donating And Electron-Withdrawing Groups On The Alkylation Sites Of Para-Substituted Phenylacetones, Abraham L. Faburada
The Effects Of Electron-Donating And Electron-Withdrawing Groups On The Alkylation Sites Of Para-Substituted Phenylacetones, Abraham L. Faburada
Masters Theses
The dianions of phenylacetone and its para-substituted derivatives were generated using potassium hydride and n-butyl lithium in tetrahydrofuran. Methyl, ethyl, and n-butyl iodides were used to alkylate the dianions. The results of alkulation indicated that C1 is preferentially attacked by the less active ethyl and n-butyl iodides. The results further show that terminal alkylation is enhanced by electron-donating groups at the para-position of the phenyl ring. The results are rationalized in terms of the difference in electron density at C1 and at C3 in the dianion, on the basis of resonance theory. The regio-selectivity of alkylation as …
The Unexpected Preferential Formation Of 1-Alkyl-1-Phenyl-2–Propanones On Monoalkylation Of The 1-Phenyl-2-Propanone Dianion, Jack M. Hinkley
The Unexpected Preferential Formation Of 1-Alkyl-1-Phenyl-2–Propanones On Monoalkylation Of The 1-Phenyl-2-Propanone Dianion, Jack M. Hinkley
Masters Theses
No abstract provided.
On A System Of Nonlinear Ordinary Differential Equations With An Irregular Type Singularity: A Degenerate Case, Jerome John Przybylski
On A System Of Nonlinear Ordinary Differential Equations With An Irregular Type Singularity: A Degenerate Case, Jerome John Przybylski
Dissertations
No abstract provided.
Paleoecology Of The Spiriferid Brachiopods Of The Silica Shale Formation (Middle Devonian), S.E. Michigan And N.W. Ohio, Darioush T. Ghahremani
Paleoecology Of The Spiriferid Brachiopods Of The Silica Shale Formation (Middle Devonian), S.E. Michigan And N.W. Ohio, Darioush T. Ghahremani
Masters Theses
Spiriferid brachiopods of the Middle Devonian Silica Formation in northwestern Ohio and southeastern Michigan show many Features that are useful For paleoecologic interpretation. This study is undertaken to examine and interpret the paleoecology and paleobiology of six spiriferid brachiopods Mucrospirifer prolificus, Mucrospirifer grabaui, Mucrospirifer profundus, Mucrospirifer mucronatus, Paraspirifer bownockeri and Spinocyrtia euryteines. All are very abundant and can be easily collected from quarries in the Silica Formation near Sylvania, Ohio.
Fourteen different morphologic characteristics have been tabulated for all specimens used in this study. These characteristics allow interpretations of the ontogenetic de velopment and ecologic relationships of the six studied …
The Analysis Of N-Methylscopolamine Bromide By High Speed Ion Pair Partition Chromatography, John L. Nappier
The Analysis Of N-Methylscopolamine Bromide By High Speed Ion Pair Partition Chromatography, John L. Nappier
Masters Theses
No abstract provided.
The Response Of The Micro-Adsorption Detector To Inorganic Anions, Maria E. Munera
The Response Of The Micro-Adsorption Detector To Inorganic Anions, Maria E. Munera
Masters Theses
No abstract provided.
Generalization Of The Form Of The T Matrix Operator Of Non-Relativistic Scattering Theory, Francis Leone
Generalization Of The Form Of The T Matrix Operator Of Non-Relativistic Scattering Theory, Francis Leone
Masters Theses
No abstract provided.
Theoretical Thermodynamic Functions For Krypton Gas, A-Hamid Aidinejad
Theoretical Thermodynamic Functions For Krypton Gas, A-Hamid Aidinejad
Masters Theses
No abstract provided.
Shallow Water High-Magnesium Calcite Mud Production And Dispersal, St. Croix, U.S. Virgin Islands, Jonathan A. Fuller
Shallow Water High-Magnesium Calcite Mud Production And Dispersal, St. Croix, U.S. Virgin Islands, Jonathan A. Fuller
Masters Theses
Boiler Bay, on the northeast coast of St. Croix, is 200 m wide, 800 m long, and about 3-5 m. deep. The hay is separated from the open Caribbean by a barrier reef. Winds from the east drive currents westward across a narrow carbonate platform (where they entrain platform-derived carbonate mud) and into the east end of the bay. Longshore currents continue westward through the bay, and the entrained platform- derived suspended load is combined with bay-produced carbonate mud and swept northwestward off the platform after passing through a 6 km complex of bays along the northeastern shore. The suspended …
Determination Of The Rate Of Formation Of Hcn, Mitchell Hull
Determination Of The Rate Of Formation Of Hcn, Mitchell Hull
Honors Theses
Nitric oxide is a major air pollutant arising from fossil fuel combustion, yet the fuel contribution to its formulation is uncertain. Since, in combustion, fossil fuels undergo disintegration before oxidation takes place, the study of the pyrolsis of a model constituent of fossil fuels can shed light on NO formation. The rate of inert pyrolytic disappearance of pyridine and the rate of formation of the principal Nitrogen-containing pyrolytic product, HCN, was studied in an inert atmosphere. The rate constant for the formation of HCN and its temperature dependence were determined.
Proximity Effects. Kinetics, Mechanisms And Reactivity Correlations For The Acidic And Alkaline Hydrolysis Of Ortho-Substituted-N-Methylbenzohydroxamic Acids, Irl E. Ward
Dissertations
No abstract provided.
Partitions Of The Vertex Set Or Edge Set Of A Graph, H. Joseph Straight
Partitions Of The Vertex Set Or Edge Set Of A Graph, H. Joseph Straight
Dissertations
No abstract provided.
Development And Application Of Computer Assisted Instruction For Mini-Computers, Thomas A. Burne
Development And Application Of Computer Assisted Instruction For Mini-Computers, Thomas A. Burne
Masters Theses
No abstract provided.
Analysis Of An Interlobate Boundary In The Wisconsinan Drift Of Kalamazoo County And Adjacent Areas In Southwestern Michigan, Norman A. Lovan
Analysis Of An Interlobate Boundary In The Wisconsinan Drift Of Kalamazoo County And Adjacent Areas In Southwestern Michigan, Norman A. Lovan
Masters Theses
A detailed investigation of selected textural and mineralogical aspects of tills in southwestern Michigan is used to define an interlobe boundary relationship between the Wisconsinan ice of the Lake Michigan and Saginaw lobes. Bedrock underlying the study area contributed little to the bulk composition of the tils investigated. However, morainal development in the study area shows strong correlation with bedrock topography.
In a discussion of the deglaciation of Michigan and the study area, a history of morainal development is reviewed and attention is focused on the reentrant district located in Kalamazoo and neighboring counties. Attempts to delineate tills of the …
Analysis Of Chert By Particle Induced X-Ray Emission, Jeanette E. Gibeson
Analysis Of Chert By Particle Induced X-Ray Emission, Jeanette E. Gibeson
Masters Theses
No abstract provided.
Method Of Variational Secular Equation For The Ground State Of Helium Atom, Mih-Seh Kong
Method Of Variational Secular Equation For The Ground State Of Helium Atom, Mih-Seh Kong
Masters Theses
No abstract provided.
Shear Waves In Glacial Till, Craig Woerpel
The Preparation And Study Of Some Bridged Tropones, Sultan T. Abu-Orabi
The Preparation And Study Of Some Bridged Tropones, Sultan T. Abu-Orabi
Masters Theses
No abstract provided.
Geology Newsletter- 1977, Department Of Geology
Geology Newsletter- 1977, Department Of Geology
Geological and Environmental Sciences News
Vol. 1, No . 3
- Dear Department Alumni and Friends
- Faculty and Staff News
- Earth Science News
- Geology/ Earth Science Club Activities
- Graduate Students
- This N' That
Side-Chain Metalations Of Certain Dimethylpyridines By Means Of Organoalkali Metal Reagents, Stephen Bendzunas
Side-Chain Metalations Of Certain Dimethylpyridines By Means Of Organoalkali Metal Reagents, Stephen Bendzunas
Masters Theses
No abstract provided.