Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Environmental Sciences (21)
- Social and Behavioral Sciences (19)
- Applied Mathematics (16)
- Chemistry (13)
- Mathematics (13)
-
- Life Sciences (12)
- Business (11)
- Earth Sciences (11)
- Education (11)
- Arts and Humanities (10)
- Natural Resources and Conservation (10)
- Geology (8)
- Numerical Analysis and Computation (8)
- Sustainability (8)
- Engineering (7)
- Geography (7)
- Natural Resource Economics (7)
- Chemical Engineering (6)
- Environmental Indicators and Impact Assessment (6)
- Environmental Monitoring (6)
- Natural Resources Management and Policy (6)
- Physics (6)
- Applied Mechanics (5)
- Fluid Dynamics (5)
- Materials Science and Engineering (5)
- Mechanical Engineering (5)
- Medicine and Health Sciences (5)
- Nanoscience and Nanotechnology (5)
- Non-linear Dynamics (5)
- Keyword
-
- Western Kentucky University (7)
- Academic Affairs (4)
- Events (4)
- Mathematics Education (4)
- Data Mining, Software Engineering (3)
-
- Artistic mathematics (2)
- Campus energy conservation (2)
- Campus sustainability (2)
- Hydrogeology (2)
- Mathematical Modeling (2)
- Mathematical art (2)
- Mathematics textbook (2)
- Probability (2)
- Trigonometry (2)
- Trigonometry textbook (2)
- Undergraduate research (2)
- Western Kentucky University Student Research Conference (2)
- extraction (chemistry) (1)
- 1920 Mammoth Cave Area (1)
- 1973 oil embargo (1)
- 2007 drought (1)
- 4-Nitrophenol (1)
- ALIVE WKU Center for Community Partnerships (1)
- ATR-FTIR (1)
- Abundance (1)
- Agricultural Economics (1)
- Air quality (1)
- American Society of Civil Engineers code of ethics (1)
- American literature (1)
- Analytical chemistry (1)
- Publication
-
- Masters Theses & Specialist Projects (28)
- Mathematics Faculty Publications (12)
- Mahurin Honors College Capstone Experience/Thesis Projects (7)
- WKU Archives Records (6)
- Earth, Environmental, and Atmospheric Sciences Faculty Publications (4)
-
- Student Research Conference Select Presentations (4)
- Sustainability Publications and Resources (4)
- Computer Science Faculty Publications (3)
- ALIVE Center Publications (1)
- Agriculture Department Seminar Series (1)
- Earth, Environmental, and Atmospheric Sciences Publications (1)
- FA Finding Aids (1)
- Ohio Valley Regional Student Conference (1)
- Physics & Astronomy Faculty Publications (1)
- WKU Archives Collection Inventories (1)
- File Type
Articles 31 - 60 of 75
Full-Text Articles in Physical Sciences and Mathematics
Assessing Organic Matter Breakdown And Associated Macroinvertebrate Community Structure In Headwater Streams: Effects Of Hydrologic Gradients And Upland Timber Harvesting, Miller Scott Jarrell
Assessing Organic Matter Breakdown And Associated Macroinvertebrate Community Structure In Headwater Streams: Effects Of Hydrologic Gradients And Upland Timber Harvesting, Miller Scott Jarrell
Masters Theses & Specialist Projects
I examined the effects of hydrologic gradients and upland timber harvesting with different streamside management zone widths on yellow-poplar (Liriodendron tulipifera) processing and the associated macroinvertebrate community structure in the Cumberland Plateau ecophysic region, U.S.A. Prior to upland timber harvesting, 5.0 ± 0.1 g yellow-poplar leaf packs were constructed, zip-tied to gutter nails, and placed into 7 perennial and 6 temporary stream reaches with similar physiochemical and geomorphic characteristics. From December 2007 to May 2008, 3–5 leaf packs were collected per reach monthly. I found significant differences in the functional feeding group composition. Temporary reaches contained higher shredder, gathering-collector, predator, …
Modeling Stormwater Pollutant Transport In A Karst Region--Bowling Green, Kentucky, Allison H. Ross
Modeling Stormwater Pollutant Transport In A Karst Region--Bowling Green, Kentucky, Allison H. Ross
Masters Theses & Specialist Projects
The management of stormwater runoff is a particular challenge for communities in karst regions. Most guidelines for compliance with regulations for stormwater monitoring and mapping pertain to non-karst environments. It can be argued that effective stormwater management is even more essential to karst regions because stormwater receives little or no natural filtration as it is transferred through conduits in the subsurface and the buildup of pollutants underneath can be detrimental to community and environmental health if not effectively mitigated. Because of the limited resources available to determine how stormwater runoff carries potential pollutants across the surface before being transferred to …
Confidence Intervals For The Ratio Of Two Exponential Means With Applications To Quality Control, James Albert Polcer,Iii
Confidence Intervals For The Ratio Of Two Exponential Means With Applications To Quality Control, James Albert Polcer,Iii
Student Research Conference Select Presentations
We considered the problem of statistical quality control based on the ratio of two population means. We restrict the discussion for two exponential rates, which are commonly used for modeling failure times of components, machines, or systems. Closed form expressions via the moment generation function (MGF) technique will be presented, and numerical examples will be shown using engineering data sets.
Elementary-Level Mathematics Content In Comic Book Format, Bruce Kessler, Janet Tassell, Mary Evans, Cathy Willoughby, Melissa Zimmer
Elementary-Level Mathematics Content In Comic Book Format, Bruce Kessler, Janet Tassell, Mary Evans, Cathy Willoughby, Melissa Zimmer
Mathematics Faculty Publications
No abstract provided.
Arsenic And Selenium Distribution In Coal-Fired Plant Samples, Pauline Rose Hack Norris
Arsenic And Selenium Distribution In Coal-Fired Plant Samples, Pauline Rose Hack Norris
Masters Theses & Specialist Projects
Arsenic and selenium distributions in coal-fired plant samples are studied. This research includes arsenic and selenium concentrations in samples of coal, fly ash, bottom ash, economizer ash, Flue Gas Desulfurization (FGD) slurry and flue gas taken from four power plants with the goal being to examine the distribution of these metals in these materials and calculate a materials balance for the system. All samples were analyzed using ICP-ES.
This research shows that 60-80% of the arsenic in coal-fired plant samples will be associated with the fly ash. Approximately 35-55% of the selenium will be associated with the fly ash and …
Qualitative Behavior Of Solutions To Differential Equations In RN And In Hilbert Space, Qian Dong
Qualitative Behavior Of Solutions To Differential Equations In RN And In Hilbert Space, Qian Dong
Masters Theses & Specialist Projects
The qualitative behavior of solutions of differential equations mainly addresses the various questions arising in the study of the long run behavior of solutions. The contents of this thesis are related to three of the major problems of the qualitative theory, namely the stability, the boundedness and the periodicity of the solution. Learning the qualitative behavior of such solutions is crucial part of the theory of differential equations. It is important to know if a solution is bounded or unbounded or if a solution is stable. Moreover, the periodicity of a solution is also of great significance for practical purposes.
A Framework For Consistency Based Feature Selection, Pengpeng Lin
A Framework For Consistency Based Feature Selection, Pengpeng Lin
Masters Theses & Specialist Projects
Feature selection is an effective technique in reducing the dimensionality of features in many applications where datasets involve hundreds or thousands of features. The objective of feature selection is to find an optimal subset of relevant features such that the feature size is reduced and understandability of a learning process is improved without significantly decreasing the overall accuracy and applicability. This thesis focuses on the consistency measure where a feature subset is consistent if there exists a set of instances of length more than two with the same feature values and the same class labels. This thesis introduces a new …
Real Time Driver Safety System, Gyuchoon Cho
Real Time Driver Safety System, Gyuchoon Cho
Masters Theses & Specialist Projects
The technology for driver safety has been developed in many fields such as airbag system, Anti-lock Braking System or ABS, ultrasonic warning system, and others. Recently, some of the automobile companies have introduced a new feature of driver safety systems. This new system is to make the car slower if it finds a driver’s drowsy eyes. For instance, Toyota Motor Corporation announced that it has given its pre-crash safety system the ability to determine whether a driver’s eyes are properly open with an eye monitor. This paper is focusing on finding a driver’s drowsy eyes by using face detection technology. …
Generalized Probabilistic Bowling Distributions, Jennifer Lynn Hohn
Generalized Probabilistic Bowling Distributions, Jennifer Lynn Hohn
Masters Theses & Specialist Projects
Have you ever wondered if you are better than the average bowler? If so, there are a variety of ways to compute the average score of a bowling game, including methods that account for a bowler’s skill level. In this thesis, we discuss several different ways to generate bowling scores randomly. For each distribution, we give results for the expected value and standard deviation of each frame's score, the expected value of the game’s final score, and the correlation coefficient between the score of the first and second roll of a single frame. Furthermore, we shall generalize the results in …
On The Breadth Of The Jones Polynomial For Certain Classes Of Knots And Links, Cody Lorton
On The Breadth Of The Jones Polynomial For Certain Classes Of Knots And Links, Cody Lorton
Masters Theses & Specialist Projects
The problem of finding the crossing number of an arbitrary knot or link is a hard problem in general. Only for very special classes of knots and links can we solve this problem. Often we can only hope to find a lower bound on the crossing number Cr(K) of a knot or a link K by computing the Jones polynomial of K, V(K). The crossing number Cr(K) is bounded from below by the difference between the greatest degree and the smallest degree of the polynomial V(K). However the computation of the Jones polynomial of an arbitrary knot or link is …
Vadose Zone Hydrology Near The Vicinity Of Edna's Dome, Mammoth Cave, Kentucky, Johnny Merideth
Vadose Zone Hydrology Near The Vicinity Of Edna's Dome, Mammoth Cave, Kentucky, Johnny Merideth
Masters Theses & Specialist Projects
This study examines the differences in key physical aqueous parameters at two different cave sites separated by only a few tens of meters. One site (FF) has a freefalling water component where water descends nearly 30 meters from the ceiling of a vertical shaft. The other location (WW) appears to have continuous water to rock contact as it descends to near the same level in the cave.
Water samples were collected at the two sites in two week intervals from May to August 2002. While both sites were proximal, they demonstrated very different behaviors, particularly during storm events. Differences in …
Multi-Walled Carbon Nanotubes-Modified Polymer Organic Photovoltaics, Tzu-Fan Chen
Multi-Walled Carbon Nanotubes-Modified Polymer Organic Photovoltaics, Tzu-Fan Chen
Masters Theses & Specialist Projects
Since the carbon nanotubes were first discovered by Iijima in 1991, CNTs have been the focus of intense research by many groups. Nearly 7000 papers and 700 theses on carbon nanotubes can be found from the eminent journals such as Nature and Science in the last decade. Since carbon nanotubes show impressive mechanical, physical and electronic properties such as high stiffness, high strength, low density, and excellent thermal conductivity, suggesting its role in light-weight high strength material application. A great quantity of important research has evidently been done in this field. The purpose of this thesis research is to investigate …
Protecting Walden Pond: A Step Towards Defending Ordinary Nature In The United States, Jessie L. Magee
Protecting Walden Pond: A Step Towards Defending Ordinary Nature In The United States, Jessie L. Magee
Student Research Conference Select Presentations
No abstract provided.
Faulkner The Humanist: How His Nobel Prize Acceptance Speech Changed How We Interpret "Barn Burning", Jessie L. Magee
Faulkner The Humanist: How His Nobel Prize Acceptance Speech Changed How We Interpret "Barn Burning", Jessie L. Magee
Student Research Conference Select Presentations
No abstract provided.
Sustainability And Civil Engineering, Jeremy D. Rodgers
Sustainability And Civil Engineering, Jeremy D. Rodgers
Ohio Valley Regional Student Conference
No abstract provided.
Fractional Calculus: Definitions And Applications, Joseph M. Kimeu
Fractional Calculus: Definitions And Applications, Joseph M. Kimeu
Masters Theses & Specialist Projects
No abstract provided.
Ua35/1 Doers & Deeds Vol. 7, No. 11, Wku Provost
Ua35/1 Doers & Deeds Vol. 7, No. 11, Wku Provost
WKU Archives Records
Newsletter created by the WKU Provost & Vice President of Academic Affairs to highlight the activities of faculty, staff and alumni.
Ua3/9/5 Wku Energy Policy Announcement, Wku President's Office
Ua3/9/5 Wku Energy Policy Announcement, Wku President's Office
WKU Archives Records
Remarks and announcement by WKU president Gary Ransdell regarding WKU's energy policy and enumerating conservation efforts.
Ua35/1 Doers & Deeds Vol. 7, No. 10, Wku Provost
Ua35/1 Doers & Deeds Vol. 7, No. 10, Wku Provost
WKU Archives Records
Newsletter created by the WKU Provost & Vice President of Academic Affairs to highlight the activities of faculty, staff and alumni.
39th Annual Wku Student Research Conference, Student Research Council, Western Kentucky University
39th Annual Wku Student Research Conference, Student Research Council, Western Kentucky University
Student Research Conference Select Presentations
No abstract provided.
Ross, Michelle Ann (Lowe) & Mark Brown, B. 1976 (Fa 356), Manuscripts & Folklife Archives
Ross, Michelle Ann (Lowe) & Mark Brown, B. 1976 (Fa 356), Manuscripts & Folklife Archives
FA Finding Aids
Finding aid only for Folklife Archives Project 356. Oral history interview conducted on 6 March 2001 by Michelle Ross and Mark Brown with Distinguished Professor Christopher Groves. Groves, a geography professor at WKU specializing in the study of hydrogeology, discusses his work as director of the Hoffman Environmental Research Institute, his geological efforts to map the flow paths of underground rivers, and other cave-science related endeavors.
Ua35/1 Doers & Deeds Vol. 7, No. 9, Wku Provost
Ua35/1 Doers & Deeds Vol. 7, No. 9, Wku Provost
WKU Archives Records
Newsletter created by the WKU Provost & Vice President of Academic Affairs to highlight the activities of faculty, staff and alumni.
Multiwavelets For Quantitative Pattern Matching, Bruce Kessler
Multiwavelets For Quantitative Pattern Matching, Bruce Kessler
Mathematics Faculty Publications
This was my presentation in Hawaii that accompanied my paper on pattern matching, published in the conference proceedings.
Wavelet Decompositions For Quantitative Pattern Matching, Bruce Kessler
Wavelet Decompositions For Quantitative Pattern Matching, Bruce Kessler
Mathematics Faculty Publications
The purpose of this paper is to provide an introduction to the concepts of wavelets and multiwavelets, and explain how these tools can be used by the analyst community to find patterns in quantitative data. Three multiwavelet bases are introduced, the GHM basis from \cite{GHM}, a piecewise polynomial basis with approximation order 4 from \cite{DGH}, and a smoother approximation-order-4 basis developed by the author in previous work \cite{K}. The technique of using multiwavelets to find patterns is illustrated in a traffic-analysis example. Acknowledgements: This work supported in part by the NACMAST consortium under contract EWAGSI-07-SC-0003.
Comic Books That Teach Mathematics, Bruce Kessler
Comic Books That Teach Mathematics, Bruce Kessler
Mathematics Faculty Publications
During the 2008--2009 academic year, the author embarked on an extremely non-standard curriculum path: developing comic books with embedded mathematics appropriate for 3rd through 6th grade students. With the help of an education professor to measure impact, an elementary-school principal, and talented undergraduate illustrators, this project came to fruition and the comics were implemented in elementary classrooms at Cumberland Trace Elementary in the Warren County School System in Bowling Green, Kentucky. This manuscript gives the history of this idea, the difficulties of developing the content of the comics and getting them illustrated, and the implementation plan in the school.
My Trig Book, Bruce Kessler
My Trig Book, Bruce Kessler
Mathematics Faculty Publications
This is the MATH 117 Trigonometry text developed by Dr. Bruce Kessler for the Gatton Academy of Math and Science at Western Kentucky University for the Math and Science sections of the course. The text has also been used in two online course offerings.
My Trig Book, Bruce Kessler
My Trig Book, Bruce Kessler
Mathematics Faculty Publications
This is the MATH 117 Trigonometry text developed by Dr. Bruce Kessler for the Gatton Academy of Math and Science at Western Kentucky University for the Academy sections of the course. The text has also been used in two online course offerings.
Thermocapillary Effects In Driven Dewetting And Self-Assembly Of Pulsed Laser-Irradiated Metallic Films, Agegnehu Atena, Mikhail Khenner
Thermocapillary Effects In Driven Dewetting And Self-Assembly Of Pulsed Laser-Irradiated Metallic Films, Agegnehu Atena, Mikhail Khenner
Mathematics Faculty Publications
In this paper the lubrication-type dynamical model is developed of a molten, pulsed laser-irradiated metallic film. The heat transfer problem that incorporates the absorbed heat from a single beam or interfering beams is solved analytically. Using this temperature field, we derive the 3D long-wave evolution PDE for the film height. To get insights into dynamics of dewetting, we study the 2D version of the evolution equation by means of a linear stability analysis and by numerical simulations. The stabilizing and destabilizing effects of various system parameters, such as the peak laser beam intensity, the film optical thickness, the Biot and …
Thermocapillary Effects In Driven Dewetting And Self-Assembly Of Pulsed Laser-Irradiated Metallic Films, Agegnehu Atena, Mikhail Khenner
Thermocapillary Effects In Driven Dewetting And Self-Assembly Of Pulsed Laser-Irradiated Metallic Films, Agegnehu Atena, Mikhail Khenner
Mathematics Faculty Publications
In this paper the lubrication-type dynamical model is developed of a molten, pulsed laser-irradiated metallic film. The heat transfer problem that incorporates the absorbed heat from a single beam or interfering beams is solved analytically. Using this temperature field, we derive the 3D long-wave evolution PDE for the film height. To get insights into dynamics of dewetting, we study the 2D version of the evolution equation by means of a linear stability analysis and by numerical simulations. The stabilizing and destabilizing effects of various system parameters, such as the peak laser beam intensity, the film optical thickness, the Biot and …
The Cumberland Plateau Of Eastern Kentucky, Larry C. Simpson, Lee J. Florea
The Cumberland Plateau Of Eastern Kentucky, Larry C. Simpson, Lee J. Florea
Earth, Environmental, and Atmospheric Sciences Faculty Publications
No abstract provided.