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Articles 1 - 11 of 11
Full-Text Articles in Physical Sciences and Mathematics
Sds Non-Acrylamide Polymeric Gel-Filled Capillary Electrophoresis For Molecular Size Separation Of Protein, Devon Andres
Sds Non-Acrylamide Polymeric Gel-Filled Capillary Electrophoresis For Molecular Size Separation Of Protein, Devon Andres
Honors Theses
Sodium dodecyl sulfide (SDS) non-acrylamide gel-filled capillary columns are a new technology being used for analysis and separation of biotechnology-derived proteins. This research was to compare this new technology to the current methods of SDS polyacrylamide gel electrophoresis (SDS-PAGE) and high-performance size-exclusion chromatography (HPSEC). The molecular mass of four different recombinant proteins were determined by two commercialized SDS non-acrylamide gel-filled capillary columns, SDS-PAGE, and HPSEC. The data obtained showed that the SDS non-acrylamide gel-filled capillary columns were compatible with the SDS-PAGE technique for molecular mass determination. HPSEC was shown to be unreliable for molecular weight determination. SDS non-acrylamide gel-filled capillary …
Design And Construction Of A Lithium Vapor Oven, Corey A. Leon
Design And Construction Of A Lithium Vapor Oven, Corey A. Leon
Honors Theses
A lithium vapor oven to be used as a source of lithium target atoms in atomic collision experiments was designed and constructed. The oven was installed in the beamline of the Van de Graaff accelerator at Western Michigan University. Test results indicated the oven produced a diffuse cloud of evaporated lithium instead of the intended concentrated jet spray. Recommendations concerning the design are made for future efforts.
The Selective Oxidation Of Dihydrosilanes, Paul B. Gansle Jr.
The Selective Oxidation Of Dihydrosilanes, Paul B. Gansle Jr.
Honors Theses
The synthesis of drugs and natural products in enartiomerically pure form is a growing area of research. Our laboratory is currently working on synthetic methodologies that would facilitate the production of compounds in such a form. The approach we are taking is to use chiral silanes as templates for the stereochemical control of organic reactions. In order to do this, however, we must first synthesize these silanes enantiomerically pure. This project focuses on the synthesis of chiral silanes by selective oxidation of prochiral dihydrosilanes to yield directly, or by further transformations, halohydrosilanes. These halohydrosilanes can in turn, be used as …
The Development And Testing Of An Instrument For Doing Fast Time-Resolved Infrared Spectroscopy And The Study Of Dimanganese Decacarbonyl Using Uv/Vis And Ftrir Spectroscopic Techniques, Steven Wells Kinne
Honors Theses
Over the past three years at Union College, an instrument has been developed that can be used to probe the mechanisms of the photochemistry of transition metal carbonyl compounds. When these complexes are activated with photons, one or two carbonyl ligands are removed from the complex, opening these sites for chemical bonding. Thus, the coordinatively unsaturated species become catalytically active, and can catalyze a wide variety of organic reactions. The intermediates in these catalytic cycles tend to be short-liver lifetimes are usually less than one second), and therefore special instrumnetation must be developed in order to directly observe these intermediates …
Construction Of A Compact, Versatile Diode Laser Spectrometer And Characterization Of Dye-Surfactant Interactions, Marc Alexander Unger
Construction Of A Compact, Versatile Diode Laser Spectrometer And Characterization Of Dye-Surfactant Interactions, Marc Alexander Unger
Honors Theses
A compact diode laser spectrometer has been designed and built. A diode laser serves as a light source. The sample holder was designed to allow the mounting of optical filters and focusing optics. These optical filters differentiate between transmitted, scattered, and fluorescent light. A photodiode transduces one of these optical signals to a current signal. The electronics were designed to perform current to voltage conversion, amplify the signal, and filter out noise. Further processing and display are performed by a "Virtual Instrument", which is a computer program designed to simulate a physical instrument. Design methodology for the mechanical/optical, electronic, and …
Gravity Modeling Of A Patch Reef In Allegan County, Michigan, Mei Leng Wong
Gravity Modeling Of A Patch Reef In Allegan County, Michigan, Mei Leng Wong
Honors Theses
The study of the Diamond Springs oil field in Allegan County focuses on the use of gravity to delineate individual reef buildups. The Diamond Springs oil field is a small patch reef located in northern Allegan County, Michigan. The reef, which is approximately 1400 feet deep, is located within the Middle Devonian Traverse Limestone and was deposited in an open shelf, carbonate platform and lagoonal environment. The reef covers an area of approximately one square mile and has a vertical relief of 30 to 80 feet. These porous reef materials are commonly buried by muds or evaporites resulting in ideal …
Symmetric Designs, Difference Sets, And A New Way To Look At Macfarland Difference Sets, John Bowen Polhill Jr.
Symmetric Designs, Difference Sets, And A New Way To Look At Macfarland Difference Sets, John Bowen Polhill Jr.
Honors Theses
In this paper, the topics of symmetric designs and difference sets are discussed both separately and in relation to each other. Then an approach to MacFarland Difference Sets using the theory behind homomorphisms from groups into the complex numbers is introduced. This method is contrasted with the method of finding this type of difference set used by E.S. Launder in his book Symmetric Designs: An Algebraic Approach.
Topics In Cyclotomic And Quadratic Fields, Pam Mellinger
Topics In Cyclotomic And Quadratic Fields, Pam Mellinger
Honors Theses
This paper introduces cyclotomic and quadratic fields and explores some of their properties and applications to problems in number theory. After some preliminary definitions and theorems, the paper looks at the relationship between quadratic and cyclotomic fields, at Kummer's lemma on units in the pth cyclotomic field, and at the Quadratic Reciprocity Law and its applications to diophantine equations.
The Investigation Of Object-Oriented Methodology As An Enabling Technique For End-User Application Development, Eng Chong Lim
The Investigation Of Object-Oriented Methodology As An Enabling Technique For End-User Application Development, Eng Chong Lim
Honors Theses
This research studies the value of object-oriented methods to design information systems that can then be developed and implemented by end-users.
The Effect Of Ionizing Radiation Damage On Transconductance Of Short N-Channel Igfets, Vivek Subramanian
The Effect Of Ionizing Radiation Damage On Transconductance Of Short N-Channel Igfets, Vivek Subramanian
Honors Theses
No abstract provided.
The Extent Of Multimedia Computer Applications In The Business World, Mei Yee Lim
The Extent Of Multimedia Computer Applications In The Business World, Mei Yee Lim
Honors Theses
The world, or at least I, was all agog when touch screens arrived. My initial contact with touch screens was at a science exhibition in Menara MPPJ, Petaling Jaya, Malaysia in July 1987. That particular exhibit, which encouraged visitors to participate and to experiment with, was a graphic program. Visitors could use their fingers to select the drawing tool or the color they want (which is something like the tools on a MacDraw screen on a Macintosh) and use their fingers to move around the screen to draw anything they want. That added to my fascination with the world of …