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Physical Sciences and Mathematics Commons™

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2013

Olivet Nazarene University

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Articles 1 - 6 of 6

Full-Text Articles in Physical Sciences and Mathematics

Anti-Tb And Antibacterial Activities Of Natural Products Extracts, Douglas Armstrong, Nathan Krause Jul 2013

Anti-Tb And Antibacterial Activities Of Natural Products Extracts, Douglas Armstrong, Nathan Krause

Faculty Scholarship – Chemistry

Further progress has been made upon the research reported in last year’s (2012) Gordon Research Conference poster. This includes applying counter-current chromatography (CCC) to selected crude plant extracts. Two CCC fractions (DA-19 and DA-3), from different plant species, had about the same or higher anti-TB activity as their respective crude extracts, suggesting that each fraction has achieved a separation of one or more active compound(s), from other (possibly inactive) compounds. Also included was the result from the crude extract (DA-12) of still another plant species, not reported last year, which also showed significant anti-TB activity. Further work is expected to …

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Scholar Week, Gregg A. Chenoweth Apr 2013

Scholar Week, Gregg A. Chenoweth

Scholar Week Archives (2011-2015)

ONU's Scholar Week flyer #3.

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Advanced Analysis Of Curved And Corrugated Titanium Aluminide Metal Intermetallic Laminates Utilizing Multi-Dimensional Finite Element Analysis, Ryan L. Shrout Apr 2013

Advanced Analysis Of Curved And Corrugated Titanium Aluminide Metal Intermetallic Laminates Utilizing Multi-Dimensional Finite Element Analysis, Ryan L. Shrout

Honors Program Projects

Titanium-aluminide (Al3Ti) is a high strength per density intermetallic compound that has fascinating implications in the realm of lightweight materials. Such a composite laminate can be thermally reacted from titanium and aluminum foils in an open air heated press. While maintaining many benefits of both materials, its inherent hardness and lack of ductility results in its inability to be conventionally formed into shapes after the reaction occurs. This project developed a method of manufacturing titanium/titanium-aluminide laminate composites in a corrugated geometry. Research and experimentation was conducted to determine the benefits of the curved material. The results suggest a possible change …

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Slicing A Puzzle And Finding The Hidden Pieces, Martha Arntson Apr 2013

Slicing A Puzzle And Finding The Hidden Pieces, Martha Arntson

Honors Program Projects

The research conducted was to investigate the potential connections between group theory and a puzzle set up by color cubes. The goal of the research was to investigate different sized puzzles and discover any relationships between solutions of the same sized puzzles. In this research, first, there was an extensive look into the background of Abstract Algebra and group theory, which is briefly covered in the introduction. Then, each puzzle of various sizes was explored to find all possible color combinations of the solutions. Specifically, the 2x2x2, 3x3x3, and 4x4x4 puzzles were examined to find that the 2x2x2 has 24 …

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Predator Prey Models In Competitive Corporations, Rachel Von Arb Apr 2013

Predator Prey Models In Competitive Corporations, Rachel Von Arb

Honors Program Projects

Predator prey models have been used for years to model animal populations. In recent years they have begun to be applied to economic situations. However, the stock market has remained largely untouched. We examine whether the success of competitive corporations such as Target and Walmart, as measured by the indicators of price per share, market share, and volume, can be modeled by various predator prey models. We consider the basic Lotka-Volterra model and the two-predator, one-prey model, as well as a ratio-dependent model. We discuss the use of numerical techniques and regression analysis as tools to estimate model parameters. For …

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Reducing Barriers To Wesleyan Thought: Olivet Nazarene University And The Wesleyan Holiness Library, Craighton T. Hippenhammer Jan 2013

Reducing Barriers To Wesleyan Thought: Olivet Nazarene University And The Wesleyan Holiness Library, Craighton T. Hippenhammer

Faculty Scholarship – Library Science

Olivet Nazarene University’s recent move to start publishing academic scholarship in a digital institutional repository, Digital Commons, is a smart move to not only highlight and preserve Olivet scholarship, but also to support the worldwide open access movement that is widely expected to rescue the current failing model of academic publishing. The traditional methods for publishing faculty scholarship have been inadequate for some time, and the financial structures that sustain them are collapsing due to skyrocketing journal prices. What faculty members want most for their research is that it be as accessible, available and useful to other researchers and to …

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