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All Articles in Other Physical Sciences and Mathematics

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Fm Radio Signal Propagation Evaluation And Creating Statistical Models For Signal Strength Prediction In Differing Topographic Environments, Timothy Land 2018 East Tennessee State University

Fm Radio Signal Propagation Evaluation And Creating Statistical Models For Signal Strength Prediction In Differing Topographic Environments, Timothy Land

Electronic Theses and Dissertations

Radio wave signal strength and associated propagation models are rarely analyzed across individual geographic provinces. This study evaluates the effectiveness of the Radio Mobile model to predict radio wave signal strength in the Blue Ridge and Valley and Ridge physiographic provinces. A spectrum analyzer was used on 19 FM transmitters to determine model accuracy. Statistical analysis determined the significance between different terrain factors and signal strength. Field signal strength was found to be related to test site elevation, transmitter azimuth, elevation angle, transmitter elevation, path loss, and distance. Using 76 signal strength receiver sites, Ordinary Least Square regression models predicted ...


Lunar Ice Cube: Development Of A Numerical Model For Attitude Control, Alexander Roberts, Benjamin Malphrus, Kevin Brown 2018 Morehead State University

Lunar Ice Cube: Development Of A Numerical Model For Attitude Control, Alexander Roberts, Benjamin Malphrus, Kevin Brown

Celebration of Student Scholarship Posters Archive

No abstract provided.


A Comparison Of Frankenbrew And Traditionally Manufactured Brewing Equipment, Daniel King 2018 Western Michigan University

A Comparison Of Frankenbrew And Traditionally Manufactured Brewing Equipment, Daniel King

Honors Theses

Opening a new business can be a daunting task. Between the legal paperwork, securing the best perceived location, hiring new employees, the investment can require the use of a life savings. In the brewing industry, this investment can be amplified by the cost of purchasing production scale brewing equipment. Because of this, many start-up brewing operations have turned to the use of Frankenbrew equipment within their brewing process. The term “Frankenbrew” was coined by Tom Hennessy of Colorado Boy Pub & Brewery. The term refers to any equipment incorporated into a brewery that was not originally intended for that purpose, but ...


The Use Of Drones For Creating 3d Models Of Waterfalls And Bedrock Features, With Particular Attention To Process And Teaching Applications, Campbell F. Bortel 2018 Cedarville University

The Use Of Drones For Creating 3d Models Of Waterfalls And Bedrock Features, With Particular Attention To Process And Teaching Applications, Campbell F. Bortel

The Research and Scholarship Symposium (2013-2019)

This study explored the use of Unmanned Aerial Systems (UAS) to model and 3D print waterfalls and bedrock features for use as classroom teaching aids and for possible use in hydrology experiments involving flumes. To achieve the goals of this study, two waterfalls and one bedrock feature were photographed and 3D printed. The waterfalls were Ludlow Falls in Miami County, OH, and Cedar Cliff Falls in Greene County, OH. The bedrock feature was Lizard Head Rock near Sedona, AZ. The UAS platform that was flown was the DJI Mavic Pro quadcopter. A camera mounted on the copter had both videography ...


The Subject Librarian Newsletter, Nanoscience, Fall 2016, Sandy Avila 2018 University of Central Florida

The Subject Librarian Newsletter, Nanoscience, Fall 2016, Sandy Avila

Sandy Avila

No abstract provided.


A Literature Review Of Research On The Cosmic Microwave Background, Hayden Webb, Jeremy Evert 2018 Southwestern Oklahoma State University

A Literature Review Of Research On The Cosmic Microwave Background, Hayden Webb, Jeremy Evert

Student Research

The objective of this research is to establish a better understanding of the current work available in the field of the Cosmic Microwave Background (CMB).

Our thesis is that, while the current state of research has created a base for the understanding of the CMB, more work is necessary through the use of computer science methods to expand upon the field. Our method of study is a literature review.

Our preliminary work suggests that NASA holds a wealth of information on this topic and has made it freely available to the public. Through our partnership with the OneOklahomaCyberinfrastructure Initiative (OneOCII ...


Evaluating The Interactive Roles Of Soil Nutrients And Polyploidy On Competitive Outcomes Of Chamerion Angustifolium, Angela Walczyk 2018 Michigan Technological University

Evaluating The Interactive Roles Of Soil Nutrients And Polyploidy On Competitive Outcomes Of Chamerion Angustifolium, Angela Walczyk

Dissertations, Master's Theses and Master's Reports

Newly formed polyploids face strong barriers preventing their establishment, but despite these barriers polyploidy is prevalent among angiosperms being a major mechanism of adaptation and speciation. Morphological and phenological differences between diploids and related polyploids often results in different ecological tolerances among cytotypes. Differences in competitive abilities brought on by genome duplication can vary with abiotic and biotic environmental conditions and influence polyploid establishment. In my theses, I test the overall hypothesis that soil nutrient availability and polyploidy interact to affect competition and performance of Fireweed plants (Chamerion angustifolium), which differ in ploidy levels. Additionally, I examined whether insect feeding ...


Starch, Lipid, And Protein Accumulation In Nutrient-Stressed Microalgal Cells Studied Using Fourier Transform Infrared Microscopy, Gary Hastings, Jodian Thomas, Keillor Witt, Dimitri Giarikos, Reza Razeghifard 2018 Georgia State University

Starch, Lipid, And Protein Accumulation In Nutrient-Stressed Microalgal Cells Studied Using Fourier Transform Infrared Microscopy, Gary Hastings, Jodian Thomas, Keillor Witt, Dimitri Giarikos, Reza Razeghifard

Chemistry and Physics Faculty Articles

Microalgae are fast growing organisms that can be used as feedstock for the production of biofuels. The metabolism of microalgae can be manipulated by exposing them to different environmental conditions for favoring the accumulation of lipids, carbohydrates or proteins. For example, a change in growth conditions can cause the accumulation of large amounts of lipids, representing an opportunity for biodiesel production. Monitoring changes in the composition of microalgal cells is therefore important in assessing new growth conditions. However, at present, most techniques are time consuming, invasive and expensive. Here we have used FTIR microscopy to quantify lipid, protein, and starch ...


Understanding The Novice Decision-Making Process In Forensic Footwear Examinations: Accuracy And Decision Rules, Madonna A. Nobel 2018 West Virginia University

Understanding The Novice Decision-Making Process In Forensic Footwear Examinations: Accuracy And Decision Rules, Madonna A. Nobel

Graduate Theses, Dissertations, and Problem Reports

The reproducibility of experienced-based forensic pattern interpretation is founded on the notion that domain-specific knowledge can be successfully distributed and applied among experts within a group. This assumption persists, even when the examination is complicated by variations in case circumstances, such as impression clarity and totality, as well as media, substrate, collection mechanism and enhancement. While it is further theorized that many of these factors (as well as additional confounding factors) are at play during an examination, the manner and extent to which these sources of variability affect the examination of footwear evidence remain unclear. In order to explore this ...


Meeting Real World Demands Of The Global Economy: An Employer's Perspective, Doreen McGunagle, Laura Zizka 2018 Embry-Riddle Aeronautical University

Meeting Real World Demands Of The Global Economy: An Employer's Perspective, Doreen Mcgunagle, Laura Zizka

Journal of Aviation/Aerospace Education & Research

Educational programs prepare students theoretically for the workplace, but many programs are still lacking in the real-world skills that the workplace requires. This is especially evident in Science, Technology, Engineering, and Math (STEM) education where today’s graduates hold a fundamental role in advancing science, medicine, sustainability, national security, and the economy, yet the programs to prepare them are falling short of employer expectations. At present, there is a lack of information on the necessary skills for workplace success that is specific to Airline, Aerospace, Defense (A&D) and related Industries’ STEM graduates. This paper attempts to fill this gap ...


Can A Comprehensive Transition Plan To Barefoot Running Be The Solution To The Injury Epidemic In American Endurance Runners?, Michael A. Scarlett 2018 Claremont McKenna College

Can A Comprehensive Transition Plan To Barefoot Running Be The Solution To The Injury Epidemic In American Endurance Runners?, Michael A. Scarlett

CMC Senior Theses

Fossils belonging to the genus Homo, dating as far back as two million years ago, exhibit uniquely efficient features suggesting that early humans had evolved to become exceptional endurance runners. Although they did not have the cushion or stability-control features provided in our modern day running shoes, our early human ancestors experienced far less of the running-related injuries we experience today. The injury rate has been estimated as high as 90% annually for Americans training for a marathon and as high as 79% annually for all American endurance runners. There is an injury epidemic in conventionally shod populations that does ...


Neutrosophic Optimization And Its Application On Structural Designs, Florentin Smarandache, Mridula Sarkar, Tapan Kumar Roy 2018 University of New Mexico

Neutrosophic Optimization And Its Application On Structural Designs, Florentin Smarandache, Mridula Sarkar, Tapan Kumar Roy

Mathematics and Statistics Faculty and Staff Publications

In the real world, uncertainty or vagueness is prevalent in engineering and management computations. Commonly, such uncertainties are included in the design process by introducing simplified hypothesis and safety or design factors. In case of structural and pavement design, several design methods are available to optimize objectives. But all such methods follow numerous monographs, tables and charts to find effective thickness of pavement design or optimum weight and deflection of structure calculating certain loop of algorithm in the cited iteration process. Most of the time, designers either only take help of a software or stop the cited procedure even after ...


Boulder Distribution Analysis Of Impact Craters In The Tharsis Region And Elysium Planitia, Mars, Nicole Button 2017 Louisiana State University and Agricultural and Mechanical College

Boulder Distribution Analysis Of Impact Craters In The Tharsis Region And Elysium Planitia, Mars, Nicole Button

LSU Master's Theses

Crater counting is an accepted method for dating the surface of a planetary body. An older landscape will have a higher areal density of craters due to exposure of impacts occurring over a longer time period. Since each initial impact only forms one primary crater, secondary craters need to be excluded in the crater counting method to appropriately catalog only distinct impact events. However, small primary craters may be difficult to distinguish from secondary craters. Understanding physical features of impact craters, such as the ejecta blanket, would improve the planetary community’s ability to differentiate between the two types of ...


Rogue Rotary - Modular Robotic Rotary Joint Design, Sean Wesley Murphy, Tyler David Riessen, Jacob Mark Triplett 2017 California Polytechnic State University, San Luis Obispo

Rogue Rotary - Modular Robotic Rotary Joint Design, Sean Wesley Murphy, Tyler David Riessen, Jacob Mark Triplett

Mechanical Engineering

This paper describes the design process from ideation to test validation for a singular robotic joint to be configured into a myriad of system level of robots.


Apathy And Concern Over The Future Habitability Of Earth: An Introductory College Assignment Of Forecasting Co2 In The Earth’S Atmosphere, Benjamin J. Burger 2017 Utah State University

Apathy And Concern Over The Future Habitability Of Earth: An Introductory College Assignment Of Forecasting Co2 In The Earth’S Atmosphere, Benjamin J. Burger

Journal on Empowering Teaching Excellence

Non-science, first year regional undergraduate students from rural Utah communities participated in an online introductory geology course and were asked to forecast the rise of CO2 in the Earth’s atmosphere. The majority of students predicted catastrophic rise to 5,000-ppm sometime over the next 3,100 years, resulting in an atmosphere nearly uninhabitable to human life. However, the level of concern the students exhibited in their answers was not directly proportional with their timing in their forecasted rise of CO2. This study showcases the importance of presenting students with actual data and using data to develop student ...


High-Order Relaxed Multirate Infinitesimal Step Methods For Multiphysics Applications, Jean Sexton 2017 Southern Methodist University

High-Order Relaxed Multirate Infinitesimal Step Methods For Multiphysics Applications, Jean Sexton

Mathematics Theses and Dissertations

In this work, we consider numerical methods for integrating multirate ordinary differential equations. We are interested in the development of new multirate methods with good stability properties and improved efficiency over existing methods. We discuss the development of multirate methods, particularly focusing on those that are based on Runge-Kutta theory. We introduce the theory of Generalized Additive Runge-Kutta methods proposed by Sandu and Günther. We also introduce the theory of Recursive Flux Splitting Multirate Methods with Sub-cycling described by Schlegel, as well as the Multirate Infinitesimal Step methods this work is based on. We propose a generic structure called Flexible ...


T-Time: A Data Repository Of T Cell And Calcium Release-Activated Calcium Channel Activation Imagery, Cody Arbuckle, Milton L. Greenberg, Adrienne Bergh, Rene German, Nick Sirago, Erik J. Linstead 2017 Chapman University

T-Time: A Data Repository Of T Cell And Calcium Release-Activated Calcium Channel Activation Imagery, Cody Arbuckle, Milton L. Greenberg, Adrienne Bergh, Rene German, Nick Sirago, Erik J. Linstead

Mathematics, Physics, and Computer Science Faculty Articles and Research

BACKGROUND: A fundamental understanding of live-cell dynamics is necessary in order to advance scientific techniques and personalized medicine. For this understanding to be possible, image processing techniques, probes, tracking algorithms and many other methodologies must be improved. Currently there are no large open-source datasets containing live-cell imaging to act as a standard for the community. As a result, researchers cannot evaluate their methodologies on an independent benchmark or leverage such a dataset to formulate scientific questions.

FINDINGS: Here we present T-Time, the largest free and publicly available data set of T cell phase contrast imagery designed with the intention of ...


Using Mountain Snowpack To Predict Summer Water Availability In Semiarid Mountain Watersheds, Rebecca Dawn Garst 2017 Boise State University

Using Mountain Snowpack To Predict Summer Water Availability In Semiarid Mountain Watersheds, Rebecca Dawn Garst

Boise State University Theses and Dissertations

In the mountainous landscapes of the western United States, water resources are dominated by snowpack. As temperatures rise in spring and summer, the melting snow produces an increase in river flow levels. Reservoirs are used during this increase to retain surplus water, which is released to supplement growing season water supply once the peak flows decrease to below water demands. Once there is no longer surplus natural flow of water, the water accounting changes – referred to as the day of allocation (DOA), and water previously retained within the reservoir is used to supplement the lower flow levels. The amount of ...


Remote Neutron Spectroscopy On Mars, Christopher Gayle Tate 2017 University of Tennessee, Knoxville

Remote Neutron Spectroscopy On Mars, Christopher Gayle Tate

Doctoral Dissertations

Remote neutron spectroscopy is an important technique in planetary science that allows for classification of the amount of light elements in a planetary regolith. It is especially suited for studying hydrogen abundances and elements with high thermal neutron absorption cross sections in the top ~1 meter of regolith. The Mars Science Laboratory rover Curiosity carries the first rover based neutron spectrometer Dynamic Albedo of Neutrons (DAN) in Gale crater, Mars. As the DAN instrument operates in passive mode, it is sensitive to neutrons produced through Galactic Cosmic Ray interactions and neutrons generated by the rover's Multi-Mission Radioisotope Thermoelectric Generator ...


Franz And Georg: Cantor's Mathematics Of The Infinite In The Work Of Kafka, Kevin P. Knudson 2017 University of Florida

Franz And Georg: Cantor's Mathematics Of The Infinite In The Work Of Kafka, Kevin P. Knudson

Journal of Humanistic Mathematics

The infinite plays a significant role in many of Franz Kafka's stories. In this note we show that a version of the middle-thirds Cantor set construction appears in Kafka's Great Wall of China. His description of the Wall's construction mirrors an iterated system of functions whose limit set is the Cantor set; we present the relevant mathematical details and a close reading of the text of the story to illustrate this metaphor.


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