Digital Commons Network^™

2014 Budget Document, Clemson University

Budget Documents

No abstract provided.

President's Report Card - October 2014, Clemson University

President's Reports to the Board of Trustees

No abstract provided.

An Analysis Of Arthropod Interceptions By Aphis-Ppq And Customs And Border Protection In Puerto Rico, David A. Jenkins, Russell F. Mizell, Skip Van Bloem, Stefanie Whitmire, Leyinska Wiscovitch, Crystal Zaleski, Ricardo Goenaga

Publications

USDA Animal Plant Health Inspection Service Plant Protection and Quarantine (APHIS-PPQ) and Customs and Border Protection (CBP) inspect traffic entering the United States for arthropods posing a threat to national agriculture or ecosystems. We analyzed interceptions made by these agencies in Puerto Rico and the U.S. Virgin Islands between October 2006 and December 2009 for patterns with regard to the frequency of interceptions, origins of interceptions, and the taxa intercepted. 6,952 arthropods were intercepted in freight or luggage entering Puerto Rico and the U.S. Virgin Islands from foreign countries and 9,840 arthropods were intercepted from freight or luggage leaving Puerto …

Literacy Motivation And Engagement: Policies, Trends, And Practices, Linda B. Gambrell, Jacquelynn A. Malloy, C. C. Bates, Kathy N. Headley

Publications

No abstract provided.

Creating Space: Pedagogical Choices To Encourage A Third Space In An Urban, Kindergarten Science Classroom, Cassie F. Quigley, Anna H. Hall

Publications

“The butterfly is in the chrysalis stage,” Victory informed us as she pointed to the brown chrysalis in the jar on the lab bench, “It was an egg then it formed its chrysalis or pupa and then it will become a butterfly.” When we asked her how she would describe this to her friends, she remarked, “It is like when you go into the dressing room and put on a church dress- you act like someone different.” In this example, Victory, a kindergartener, was translating the scientific language taught to her in the science classroom into a language her friends …

Examining Teachers’ Beliefs About The Value Of The Common Core English Language Arts Standards, Anna H. Hall, A Hutchison, K White

Publications

The purpose of this study was to develop and administer a survey that examines teachers’ beliefs about the value of the Common Core English Language Arts (ELA) standards, the feasibility of implementing the standards, and the effects these standards have on teachers’ instructional practices and their perceptions of student outcomes.

Tigers In The Trenches: The Clemson College Class Of 1917 In The First World War, Alan C. Grubb, Brock M. Lusk

Publications

Clemson University proudly proclaims that the Class of 1917 volunteered en-masse for service during the First World War, after President Woodrow Wilson sought a declaration of war from Congress in April 1917. A bullet stating the claim is the first on the Clemson Corps’ “Stories & Highlights inside the Scroll of Honor” web page,1 and the Reserve Officer Training Corps (ROTC) on campus trumpets this to incoming cadets. I personally remember hearing this as a young Cadet 4th Class from my ROTC instructor in 1998 and imaging the men who graduated sailing to Europe to serve beside one another in …

A Comparative Survey Of Domestic And International Experiences In Capstone Design, Beshoy Morkos, Joshua D. Summers, Samantha Thoe

All CEDAR Publications

This paper studies the differences between student experiences in domestic and international capstone design offerings for mechanical engineering students at Clemson University. For this, we conducted surveys and interviews of students participating in both the traditional domestic version of a capstone course at Clemson University and a group of students that participated in an international, study abroad version of a capstone course jointly administered by Clemson University and West Virginia University. The surveys were given to students before and after the program to assess whether the international component had an impact on their global awareness when compared to their peers …

Assembly Time Estimation: Assembly Mate Based Structural Complexity Metric Predictive Modeling, Joseph E. Owensby, Joshua D. Summers

All CEDAR Publications

This paper presents an automated tool for estimating assembly times of products based on a three step process: connectivity graph generation from assembly mate information, structural complexity metric analysis of the graph, and application of the complexity metric vector to predictive artificial neural network models. The tool has been evaluated against different training set cases, suggesting that partially defined assembly models and training product variety are critical characteristics. Moreover, the tool is shown to be robust and insensitive to different modeling engineers. The tool has been implemented in a commercial CAD system and shown to yield results of within ±25% …

Development Of A Geometric Model Retrieval System: A Design Exemplar Case Study, Murty Srirangam, Srinivasan Anandan, Joshua D. Summers

All CEDAR Publications

This paper presents a case study examining design exemplar technology implemented as a search and retrieval tool for tyre mould inserts. Limitations of using the geometric-based exemplar approach, such as tediousness of authoring exemplars and time complexity, are identified and addressed through a new parametric-based exemplar approach. Here, the maxima and minima are calculated based upon the specifications of the query mould insert. The design exemplar is demonstrated to be useful primarily in prototyping query mechanisms. Ultimately, customer requirements necessitated implementing the parametric approach as a dedicated software package grounded on the exemplar-based prototyped query mechanism.

President's Report Card - February 2014, Clemson University

President's Reports to the Board of Trustees

No abstract provided.

President's Report Card - April 2014, Clemson University

President's Reports to the Board of Trustees

No abstract provided.

President's Report Card - July 2014, Clemson University

President's Reports to the Board of Trustees

No abstract provided.

Investigating If Dr. Pepper Ten Is A \10\" For Men", M. Macnaughton, B. Butterworth, A. Corverse, K. Davis, E. Ewald, H. Green, A. Grigg, E. Jones, L. Keating, M. Maurer, R. Martinez-Dawson, P. Dawson

Focus on Creative Inquiry

The objective was to investigate taste preference for Dr Pepper TEN and Diet Dr Pepper and consumers' willingness to purchase Dr Pepper TEN after viewing the product's commercial. A taste preference test was conducted using 168 students at Clemson University during fall 2013. An online survey developed using Qualtrics consisted of items for demographics, taste preference and consumer behavior after viewing a Dr Pepper TEN commercial. One and two sample proportion Z tests were performed and chi-squared tests were used for testing associations. The majority (overall, males and females) preferred the taste of Dr Pepper TEN (p-value<0.001). There was no evidence of a difference in the proportion of males and females who preferred the taste of Dr Pepper TEN (p-value=0.2546). There was no evidence of an association between gender and likelihood of purchasing Dr Pepper TEN after seeing the commercial (p-value<0.25). The results give doubt to the \just for women\" claim of the advertisements."

Open Textbooks Are Here!, Julia E. Rodriguez

A repository of copyright educational resources for higher education

History of open textbooks and informative links to related resources.

Pre-Service Teachers’ Use Of Visualizations In The Science Classroom: A Case Study, Brooke A. Whitworth, Jennifer L. Chiu

Publications

Scientific visualizations of phenomena can enhance the way learners understand scientific concepts (Honey & Hilton, 2011). Scientific concepts can be abstract and difficult for students to understand and visualizations can help make these abstract concepts more concrete for students. For example, chemistry students often struggle with understanding how atoms bond since they cannot directly see atoms. Using a visualization to show students how the electrons are shared or transferred can help students understand these abstract concepts. In addition, many visualizations are freely available online and can be a key element to maintain quality science instruction with limited resources.

Toward A Theory-Predicated Definition Of Digital Literacy For Early Childhood, Elizabeth R. Kazakoff

Journal of Youth Development

Though young children are frequent users of digital technology, there is no comprehensive definition of early childhood digital literacy. Currently, digital literacy and related terms are defined with much older children and adults in mind. This paper aims to lay groundwork for redefining digital literacy in an early childhood context. Taking into account the unique developmental needs of early childhood when discussing digital literacy can provide a gateway to developing technological tools and curricula to prepare children in kindergarten through second grade to be more effective users of digital technologies throughout their lives.

Three X-Ray Transients In M31 Oberserved With Swift, R. Voss, W. Pietsch, F. Haberl, H. Stiele, J. Greiner, G. Sala, Dieter H. Hartmann, D. Hatzidimitriou

Publications

Aims.The purpose of this study is to find transient X-ray sources in M 31, and to investigate and classify their nature.Methods.Three X-ray transients were observed with Swift. For each of the three X-ray transients we use the Swift X-ray and opticaldata together with observations from XMM-Newton and Chandra to investigate the lightcurves and the spectra of the outburst, andthereby to identify the source types. Results.The outburst of XMMU J004215.8+ 411924 lasted for about one month. The source had a hard power-law spectrum with aphoton index of 1.6. It was previously identified as a Be/X-ray binary based on the optical identification …

Supernova Neutrino Nucleosynthesis Of Light Elements With Neutrino Oscillations, Takashi Yoshida, Toshitaka Kajino, Hidekazu Yokomakura, Keiichi Kimura, Akira Takamura, Dieter H. Hartmann

Publications

Light element synthesis in supernovae through neutrino-nucleus interactions, i.e., the ν-process, is affected by neutrino oscillations in the supernova environment. There is a resonance of 13-mixing in the O/C layer, which increases the rates of charged-current ν-process reactions in the outer He-rich layer. The yields of 7Li and 11B increase by about a factor of 1.9 and 1.3, respectively, for a normal mass hierarchy and an adiabatic 13-mixing resonance, compared to those without neutrino oscillations. In the case of an inverted mass hierarchy and a non-adiabatic 13-mixing resonance, the increase in the 7Li and 11B yields is much smaller. Observations …

Towards A System For Controlling Client-Server Traffic In Virtual Worlds Using Sdn, Jason Anderson, Jim Martin

Publications

Scaling virtual worlds in the age of cloud computing is complicated by the problem of efficiently directing client-server traffic in the face of agile and dynamic compute resources. In this proposed model, Software Defined Networking and compact encoding of avatar data in packet headers are combined to make a fast, scalable, high capacity proxy server that can hide the server infrastructure while fitting well with the IaaS paradigm of modern cloud providers.

Application Of Image Processing And Finite Element Analysis In Modeling Chloride Diffusion In Concrete, Arash Razmjoo

All Dissertations

Utilizing numerical simulation models to predict the long-term mechanical and transport behavior of concrete structures is becoming increasingly popular. The majority of these models have been developed using laboratory test data that consider concrete as a homogeneous material with spherical aggregates. These models could not be a represented of real concrete because it has no primitive shaped aggregate besides that the porosity size and distribution varies from point to point. In this study a novel method for more accurate prediction of the chloride diffusion in concrete was developed. A general framework of the quantitative computed tomography (QCT) and finite element …

Clemson Commencement Program, December 2013, Clemson University

Clemson Commencement Programs

No abstract provided.

Molecular Dynamics Simulations Using Advanced Sampling And Polarizable Force Fields, Tugba Kucukkal

All Dissertations

Molecular dynamics (MD) simulations were carried out for aqueous dipeptides, water over self-assembled monolayer (SAM) surfaces, and the nicotinic acetylcholine receptor (nAChR) ion channel. The main goal is to use advanced methods to increase the accuracy of molecular dynamics simulations while seeking solutions to problems relevant to chemistry, biophysics and materials science. In addition, activation energies of several cyclodimerization reactions were studied quantum mechanically. The simulations of the aqueous dipeptides and SAM surfaces involve modeling and detailed analysis of interfacial water, which is of interest to a range of fields from biology to materials science. For example, water has a …

Offshore Wind Energy Study And Its Impact On South Carolina Transmission System, Tingting Wang

All Dissertations

As one of the renewable resources, wind energy is developing dramatically in last ten years. Offshore wind energy, with more stable speed and less environmental impact than onshore wind, will be the direction of large scale wind industry. Large scale wind farm penetration affects power system operation, planning and control. Studies concerning type III turbine based wind farm integration problems such as wind intermittency, harmonics, low voltage ride through capability have made great progress. However, there are few investigations concerning switching transient impacts of large scale type III turbine based offshore wind farm in transmission systems. This topic will gain …

An Investigation Into The Interactions Of Gold Nanoparticles With Aquatic Vascular Macrophytes, James Glenn

All Dissertations

Nanomaterials (NMs) have promised lighter, stronger, smaller and more efficient products in areas such as electronics, medicines and even environmental sectors. This investigation started at the base of the food chain and characterized NMs interactions with aquatic plants. Citrate capped gold nanoparticles were used as a model nanoparticle to track fate and gain insight on factors that influence gold nanoparticle (AuNP) bioavailability and absorption. Four species of aquatic macrophytes were investigated. Azolla caroliniana, Myriophyllum simulans, Egeria densa and Myriophyllum aquaticum were selected due to growth habitat, leaf morphology and root structure. Because aquatic plants absorb the majority of their nutrients …

Surface Shape Perception In Volumetric Stereo Displays, Meng Zhu

All Dissertations

In complex volume visualization applications, understanding the displayed objects and their spatial relationships is challenging for several reasons. One of the most important obstacles is that these objects can be translucent and can overlap spatially, making it difficult to understand their spatial structures. However, in many applications, for example medical visualization, it is crucial to have an accurate understanding of the spatial relationships among objects. The addition of visual cues has the potential to help human perception in these visualization tasks. Descriptive line elements, in particular, have been found to be effective in conveying shape information in surface-based graphics as …

Exploratory Synthesis Of New Iron(Ii,Iii)-Containing Polyanion Framework Solids Of Electrochemical And Magnetic Interest, Liurukara Sanjeewa

All Dissertations

The studies demonstrated in this dissertation were primarily focused on the synthesis, structure and property characterizations of iron(II,III) containing framework solids. The scope of this research is threefold: 1) explore new iron(II, III)-containing open framework structures in hopes of creating new materials, useful in the areas of both Li- and Na-ion battery applications; 2) synthesis and characterization of low-dimensional magnetic nanostructures exhibiting novel magnetic properties due to confined magnetic lattices; and 3) conduct structure/property correlation studies to identify the origins of any unusual physical phenomena associated with these new compounds.

In the syntheses of new compounds, molten salt fluxes were …

Predictive Maturity Of Inexact And Uncertain Strongly Coupled Numerical Models, Ismail Farajpour

All Dissertations

The Computer simulations are commonly used to predict the response of complex systems in many branches of engineering and science. These computer simulations involve the theoretical foundation, numerical modeling and supporting experimental data, all of which contain their associated errors. Furthermore, real-world problems are generally complex in nature, in which each phenomenon is described by the respective constituent models representing different physics and/or scales. The interactions between such constituents are typically complex in nature, such that the outputs of a particular constituent may be the inputs for one or more constituents. Thus, the natural question then arises concerning the validity …

The Role Of Youth Program Leaders In The Use Of Technology: Challenges And Opportunities For Youth-Serving Organizations, Mimi Nichter, Lynne Borden, Veronica Przybyl

Journal of Youth Development

Youth-serving organizations offer young people an opportunity to gain skills and advance their knowledge of current and evolving technology through experiential learning. The key to ensuring that young people have meaningful learning experiences is directly related to the youth program leader who is responsible for designing and implementing these programs. Programs conducted by well-trained and well-prepared adults are an essential component of community-based interventions. To date, there is relatively limited research on how technology such as smart phones can be used in community-based programs and the success or failure of this as a strategy for delivering information and engaging young …

Neutron Study Of Structured Polymers At Interfaces, Thusitha Etampawala

All Dissertations

This work focuses on interfacial structure and dynamics of structured polymers in thin films and in solutions using neutron techniques accompanied by atomic force microscopy. We probed polymers with a common theme that were highly segregated either because of presence of ionic groups or topological constraints. In these polymers the interfacial regions often define their function in different applications such as clean energy, printing adhesions and drug delivery systems. Thin film studies include systems of polystyrene/sulfonated polystyrene, a rigid sulfonated polyphenylene and polystyrene three-arm stars/linear polystyrene. The first two systems include ionic components and the last exhibits topological constraints. Polystyrene …