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Articles 2551 - 2580 of 5573
Full-Text Articles in Physical Sciences and Mathematics
Ceg 724-01: Computer Vision I, Maite Trujillo
Ceg 724-01: Computer Vision I, Maite Trujillo
Computer Science & Engineering Syllabi
This course covers basic techniques for low-level and some mid-level vision processes. The techniques include: linear filtering, edge detection, image segmentation and classification, stereo vision, motion, texture analysis and image matching.
Ceg 498-01: Design Experience, Thomas C. Hartrum
Ceg 498-01: Design Experience, Thomas C. Hartrum
Computer Science & Engineering Syllabi
CEG 498 (Design Experience) is a summative computer engineering design project course that builds upon previous engineering, science, mathematics and communications course work. CEG 498 projects are a minimum of two quarters in length and must be completed in groups of at least three students. Projects are selected under the guidance of the course instructor and are tailored to both student interest and formal classroom preparation. Students are evaluated both on their individual contributions as recorded in a graded engineering journals and on the quality of their collective efforts as reflected in group generated products.
Ceg 434/634-01: Concurrent Software Design, Yong Pei
Ceg 434/634-01: Concurrent Software Design, Yong Pei
Computer Science & Engineering Syllabi
This course provides an introduction to concurrent program design in the UNIX environment. Classical problems of synchronization, concurrency, and their solutions are examined through course projects and through readings on operating system design.
Ceg 402/602-01: Introduction To Computer Communication, Bin Wang
Ceg 402/602-01: Introduction To Computer Communication, Bin Wang
Computer Science & Engineering Syllabi
This course provides an introduction to basic concepts of communication networks, different types of networks, protocols over different layers, and network applications through lectures, labs, homework, and reading on relevant materials. You will
· Understand networking principles, protocols, and technologies.
· Understand some design and performance issues involved in providing a network service.
· Acquire background for supporting e-commerce, e-government, and e-education.
· Gain hands-on experience with programming techniques for network protocols.
· Obtain background for original research in computer networks.
Ceg 360/560-01: Digital System Design, Travis E. Doom
Ceg 360/560-01: Digital System Design, Travis E. Doom
Computer Science & Engineering Syllabi
Design of digital systems. Topics include flip-flops, registers, counters, programmable logic devices, memory devices, register-level design, and microcomputer system organization. Students must show competency in the design of digital systems. 3 hours lecture, 2 hours lab. Prerequisite: CEG 260.
Web Service Semantics - Wsdl-S, Rama Akkiraju, Joel Farrell, John A. Miller, Meenakshi Nagarajan, Amit P. Sheth, Kunal Verma
Web Service Semantics - Wsdl-S, Rama Akkiraju, Joel Farrell, John A. Miller, Meenakshi Nagarajan, Amit P. Sheth, Kunal Verma
Kno.e.sis Publications
The current WSDL standard operates at the syntactic level and lacks the semantic expressivity needed to represent the requirements and capabilities of Web Services. Semantics can improve software reuse and discovery, significantly facilitate composition of Web services and enable integrating legacy applications as part of business process integration. The Web Service Semantic s technical note defines a mechanism to associate semantic annotations with Web services that are described using Web Service Description Language (WSDL). It is conceptually based on, but a significant refinement in details of, the original WSDL-S proposal [WSDL-S] from the LSDIS laboratory at the University of Georgia. …
Study Of The Photoluminescence Of Phosphorus-Doped P-Type Zno Thin Films Grown By Radio-Frequency Magnetron Sputtering, Dae-Kue Hwang, Hyun-Sik Kim, Jae-Hong Lim, Jin-Yong Y. Oh, Jin-Ho Yang, Seong-Ju Park, Kyong-Kook Kim, David C. Look, Y. S. Park
Study Of The Photoluminescence Of Phosphorus-Doped P-Type Zno Thin Films Grown By Radio-Frequency Magnetron Sputtering, Dae-Kue Hwang, Hyun-Sik Kim, Jae-Hong Lim, Jin-Yong Y. Oh, Jin-Ho Yang, Seong-Ju Park, Kyong-Kook Kim, David C. Look, Y. S. Park
Physics Faculty Publications
Phosphorus-doped p-type ZnO thin films were grown on sapphire by radio-frequency magnetron sputtering. The photoluminescence (PL) spectra revealed an acceptor bound exciton peak at 3.355 eV and a conduction band to the acceptor transition caused by a phosphorus related level at 3.310 eV. A study of the dependence of the excitation laser power density and temperature on the characteristics of the PL spectra suggests that the emission lines at 3.310 and 3.241 eV can be attributed to a conduction band to the phosphorus-related acceptor transition and a donor to the acceptor pair transition, respectively. The acceptor energy level of the …
Information Technology (It) Appropriateness: The Contingency Theory Of “Fit” And It Implementation In Small And Medium Enterprises, Deepak Khazanchi
Information Technology (It) Appropriateness: The Contingency Theory Of “Fit” And It Implementation In Small And Medium Enterprises, Deepak Khazanchi
Information Systems and Quantitative Analysis Faculty Publications
There is little doubt that advanced information and communication technologies (IT) arc changing the way businesses operate and conduct commerce. As the advent of a more secure Internet and new transmission standards makes it easier and cheaper for businesses to conduct inter-organizational commerce, it is incumbent upon SME managers to assess whether implementing new technologies such as Electronic Data Interchange (EDI) over the Internet, XML or web-based e-commerce is the "right thing to do" for their organizations. The key question implicit in this decision is addressed in this paper: "Under what conditions should businesses consider themselves likely candidates for (new) …
Highly Coercive Thin-Film Nanostructures, Jian Zhou, Ralph Skomski, Arti Kashyap, Kory D. Sorge, Yucheng Sui, Maria Daniil, L. Gao, M. L. Yan, Sy_Hwang Liou, Roger D. Kirby, David J. Sellmyer
Highly Coercive Thin-Film Nanostructures, Jian Zhou, Ralph Skomski, Arti Kashyap, Kory D. Sorge, Yucheng Sui, Maria Daniil, L. Gao, M. L. Yan, Sy_Hwang Liou, Roger D. Kirby, David J. Sellmyer
Department of Physics and Astronomy: Faculty Publications
The processing, structure, and magnetism of highly coercive Sm–Co and FePt thin-film nanostructures are investigated. The structures include 1:5 based Sm–Co–Cu–Ti magnets, particulate FePt:C thin films, and FePt nanotubes. As in other systems, the coercivity depends on texture and imperfections, but there are some additional features. A specific coercivity mechanism in particulate media is a discrete pinning mode intermediate between Stoner-Wohlfarth rotation and ordinary domain-wall pinning. This mechanism yields a coercivity maximum for intermediate intergranular exchange and explains the occurrence of coercivities of 5 T in particulate Sm–Co–Cu–Ti magnets.
Photometry Of Type Ii Cepheids. Ii. The Short-Period Stars, Edward G. Schmidt, Dale Johnston, Shawn Langan, Kevin M. Lee
Photometry Of Type Ii Cepheids. Ii. The Short-Period Stars, Edward G. Schmidt, Dale Johnston, Shawn Langan, Kevin M. Lee
Department of Physics and Astronomy: Faculty Publications
We present 668 new photometric observations for 24 Cepheids with periods less than 3 days. Most of the stars are probable type II Cepheids, but we have included some type I Cepheids for comparison. A discussion of the Fourier parameters of the light curves leads to the conclusion that they can be used to distinguish among the several types of light curves found among the type II stars but are of limited usefulness for distinguishing between type I and type II Cepheids. The pulsational stability is investigated by searching for long-term changes in the light-curve shapes, period changes, and light-curve …
The Slope Mean And Its Invariance Properties, Jun Ji, Charles Kicey
The Slope Mean And Its Invariance Properties, Jun Ji, Charles Kicey
Faculty Articles
Discusses the slope mean and its invariance properties. Notion of invariance; Comparison of linear regression methods; Comparison with classic means; Characterization by invariance; Focus on quasi-arithmetic means; Theorems used.
Ballistic Anisotropic Magnetoresistance, Julian P. Velev, Renat F. Sabirianov, Sitaram Jaswal, Evgeny Y. Tsymbal
Ballistic Anisotropic Magnetoresistance, Julian P. Velev, Renat F. Sabirianov, Sitaram Jaswal, Evgeny Y. Tsymbal
Physics Faculty Publications
Electronic transport in ferromagnetic ballistic conductors is predicted to exhibit ballistic anisotropic magnetoresistance—a change in the ballistic conductance with the direction of magnetization. This phenomenon originates from the effect of the spin-orbit interaction on the electronic band structure which leads to a change in the number of bands crossing the Fermi energy when the magnetization direction changes. We illustrate the significance of this phenomenon by performing ab initio calculations of the ballistic conductance in ferromagnetic Ni and Fe nanowires which display a sizable ballistic anisotropic magnetoresistance when magnetization changes direction from parallel to perpendicular to the wire axis.
Gutstein Generalized- A Philosophical Debate: A Critical Commentary On Gutstein's (2003) Thesis For The Incorporation Of Social Justice In The Mathematics Curriculum, Seth Braver, Jane Micklus, Sheila Bradley, Hillary Van Spronsen, Samantha Allen, Vicki Campbell
Gutstein Generalized- A Philosophical Debate: A Critical Commentary On Gutstein's (2003) Thesis For The Incorporation Of Social Justice In The Mathematics Curriculum, Seth Braver, Jane Micklus, Sheila Bradley, Hillary Van Spronsen, Samantha Allen, Vicki Campbell
The Mathematics Enthusiast
The Scene: A Courtroom
The Year: 2004 (old style), 15 (new style - After Standards)
The Grand Inquisitor mounts the podium, and addresses the Debaters standing silently before him. A large crowd fills the hall.
Inquisitor:
Ladies and Gentlemen! You have been summoned here today to present the final arguments for and against these propositions which have so vexed our society in recent months. Each of you represents a vision of the future of mathematics education. Ere the sun sets we shall fix our resolve to one vision or the other. The victors, I doubt not, shall lead us into …
Editorial, Bharath Sriraman
Mems: Mobile Environmental Management System, Keith Gardiner, A Rizzini, James Carswell, Michela Bertolotto
Mems: Mobile Environmental Management System, Keith Gardiner, A Rizzini, James Carswell, Michela Bertolotto
Conference papers
This paper describes a web-based and Mobile Environmental Management System (MEMS) prototype specifically tailored to perform context-aware queries and updating of spatial datasets. Spatially enabled computing can provide situation aware assistance to both web-based and mobile users by presenting the right information at the right time, place, and situation using context-associated knowledge. Contextassociated knowledge is assembled by combining knowledge gained about information accessed in the past with the activities planned by the user, together with other situation dependencies (e.g. location) of these activities. The MEMS datasets are provided by the Canadian Department of Fisheries and Oceans (DFO) and the prototype …
Survivable Lightpath Provisioning In Wdm Mesh Networks Under Shared Path Protection And Signal Quality Constraints, Xi Yang, Lu Shen, Byrav Ramamurthy
Survivable Lightpath Provisioning In Wdm Mesh Networks Under Shared Path Protection And Signal Quality Constraints, Xi Yang, Lu Shen, Byrav Ramamurthy
School of Computing: Faculty Publications
This paper addresses the problem of survivable lightpath provisioning in wavelength-division-multiplexing (WDM) mesh networks, taking into consideration optical-layer protection and some realistic optical signal quality constraints. The investigated networks use sparsely placed optical–electrical–optical (O/E/O) modules for regeneration and wavelength conversion. Given a fixed network topology with a number of sparsely placed O/E/O modules and a set of connection requests, a pair of link-disjoint lightpaths is established for each connection. Due to physical impairments and wavelength continuity, both the working and protection lightpaths need to be regenerated at some intermediate nodes to overcome signal quality degradation and wavelength contention. In the …
Synthesis Of Cyclopropanes Via Organoiron Methodology: Preparation And Rearrangement Of Divinylcyclopropanes, Nathaniel J. Wallock, William A. Donaldson
Synthesis Of Cyclopropanes Via Organoiron Methodology: Preparation And Rearrangement Of Divinylcyclopropanes, Nathaniel J. Wallock, William A. Donaldson
Chemistry Faculty Research and Publications
Addition of alkenyl Grignard reagents to (1-methoxycarbonylpentadienyl)iron(1+) cation generates the corresponding (2-alkenylpent-3-en-1,5-diyl)iron complexes. Oxidatively induced-reductive elimination of these complexes gives divinylcyclopropanes which can undergo subsequent Cope rearrangement to give 1,4-cycloheptadienes.
Methods For Fabricating Microarrays Of Motile Bacteria, Sergey Rozhok, Clifton K. -F. Shen, Pey-Lih H. Littler, Zhifang Fan, Chang Liu, Chad A. Mirkin, Richard C. Holz
Methods For Fabricating Microarrays Of Motile Bacteria, Sergey Rozhok, Clifton K. -F. Shen, Pey-Lih H. Littler, Zhifang Fan, Chang Liu, Chad A. Mirkin, Richard C. Holz
Chemistry Faculty Research and Publications
Motile bacterial cell microarrays were fabricated by attaching Escherichia coli K-12 cells onto predesigned 16-mercaptohexadecanoic acid patterned microarrays, which were covalently functionalized with E. coli antibodies or poly-L-lysine. By utilizing 11-mercaptoundecyl-penta(ethylene glycol) or 11-mercapto-1-undecanol as passivating molecules, nonspecific binding of E. coli was significantly reduced. Microcontact printing and dip-pen nanolithography were used to prepare microarrays for bacterial adhesion, which was studied by optical fluorescence and atomic force microscopy. These data indicate that single motile E. coli can be attached to predesigned line or dot features and binding can occur via the cell body or the flagella of bacteria. Adherent bacteria …
The Effects Of Nutrient Concentrations On Macroinvertebrate Distributions In Georgia, Paula Michele Pollock Brossett
The Effects Of Nutrient Concentrations On Macroinvertebrate Distributions In Georgia, Paula Michele Pollock Brossett
Theses and Dissertations
Nutrients are considered the second largest nonpoint source pollutant in Georgia's running water ecosystems. Nutrients can naturally occur in low amounts and are typically increased in streams as a result of industry, agriculture, silviculture, and urbanization. In large amounts, nutrients can cause many problems to occur in the stream ecosystem. Macroinvertebrates have been established as good indicators for determining the level of impairment of a stream; however, not much research has been done on how nutrients affect macroinvertebrates in a stream. Approximately 225 reference and impaired streams were sampled over a 3 - year field season, (index period from September …
Level Sets Of Functions And Symmetry Sets Of Surface Sections, André Diatta, Peter Giblin, Brendan Guilfoyle, Wilhelm Klingenberg
Level Sets Of Functions And Symmetry Sets Of Surface Sections, André Diatta, Peter Giblin, Brendan Guilfoyle, Wilhelm Klingenberg
Conference Papers
We prove that the level sets of a real C s function of two variables near a non-degenerate critical point are of class C [s/2] and apply this to the study of planar sections of surfaces close to the singular section by the tangent plane at an elliptic or hyperbolic point, and in particular at an umbilic point. We go on to use the results to study symmetry sets of the planar sections. We also analyse one of the cases coming from a degenerate critical point, corresponding to an elliptic cusp of Gauss on a surface, where the …
North American Bird Strike Advisory System: Strategic Plan, Russell P. Defusco , Usaf (Ret.), Michel J. Hovan, James T. Harper , Lt. Col., Usaf, Kurt A. Heppard
North American Bird Strike Advisory System: Strategic Plan, Russell P. Defusco , Usaf (Ret.), Michel J. Hovan, James T. Harper , Lt. Col., Usaf, Kurt A. Heppard
Bird Strike Committee-USA/Canada Joint Annual Meeting: 7th (2005)
The international aviation community recognizes the high human and economic costs associated with bird strikes. Hundreds of lives and millions of dollars have been lost in recent years because of this problem. Notably, aviation experts in North America recognize the importance and availability of potential solutions for this problem. Several models and systems such and the USAF’s Bird Avoidance Model (BAM) and the Avian Hazard Advisory System (AHAS) as well as the technological development of advanced radar and communications systems have made great progress in addressing the problem of bird strikes. However, many have argued that further and much greater …
North American Bird Strike Advisory System, Russell Defusco, Michel Hovan, James Harper, Kurt Heppard
North American Bird Strike Advisory System, Russell Defusco, Michel Hovan, James Harper, Kurt Heppard
Bird Strike Committee-USA/Canada Joint Annual Meeting: 11th (2009)
The international aviation community recognizes the high human and economic costs associated with bird strikes. Hundreds of lives and millions of dollars have been lost in recent years because of this problem. Notably, aviation experts in North America recognize the importance and availability of potential solutions for this problem. Several models and systems such and the USAF’s Bird Avoidance Model (BAM) and the Avian Hazard Advisory System (AHAS) as well as the technological development of advanced radar and communications systems have made great progress in addressing the problem of bird strikes. However, many have argued that further and much greater …
Personalization By Program Slicing, Saverio Perugini, Naren Ramakrishnan
Personalization By Program Slicing, Saverio Perugini, Naren Ramakrishnan
Computer Science Faculty Publications
Personalization involves customizing information access to the end-user. As any new area of computer science research it lacks formal models to guide the design of systems. In this paper, we present a modeling methodology, based on generative programming, for personalizing interactions with hierarchical websites. The methodology entails modeling a user’s interaction with a site in a program and applying program slicing to personalize the interaction. While preserving interactivity, this approach does not require the designer to anticipate all possible user interactions a priori and provide interfaces for each. Moreover, it provides a theoretical, systematic, and implementation-neutral way to design systems …
Sulfide Mineralization In Deep-Water Marine Sediments Related To Methane Transport, Methane Consumption, And Methane Gas Hydrates, Matthew K. Thompson, Walter S. Borowski, Charles K. Paull, William Ussler Iii
Sulfide Mineralization In Deep-Water Marine Sediments Related To Methane Transport, Methane Consumption, And Methane Gas Hydrates, Matthew K. Thompson, Walter S. Borowski, Charles K. Paull, William Ussler Iii
EKU Faculty and Staff Scholarship
Patterns of sulfide sulfur concentration and sulfur isotopic composition (d34 S) are perhaps related to upward methane transport, especially in sediments underlain by methane gas hydrate deposits. Increased methane delivery augments the effect of anaerobic methane oxidation (AMO) occurring at the sulfate-methane interface (SMI). Sulfate and methane co-consumption results in production of dissolved sulfide at the interface that is eventually sequestered within sulfide minerals (elemental sulfur, iron monosulfide, pyrite).
We examine the sediments of two piston cores collected over the Blake Ridge gas hydrate deposits (offshore southeastern United States) by extracting total sedimentary sulfide using chromium reduction. We use …
An Excel Application For Valuing European Options With Monte Carlo Analysis, Tom Arnold, Stephen C. Henry
An Excel Application For Valuing European Options With Monte Carlo Analysis, Tom Arnold, Stephen C. Henry
Finance Faculty Publications
By developing the basic intuition of how Monte Carlo simulation works within an Excel spreadsheet framework, this paper allows the undergraduate student to use Monte Carlo simulation techniques to price European style options without additional sophisticated software. Further, the skills and intuition developed provide the basis for much more complex simulation techniques.
Fundamental And Applied Experimental Investigations Of Corrosion Of Steel By Lbe Under Controlled Conditions: Kinetics, Chemistry, Morphology, And Surface Preparation: Quarterly Report (January 2005-April 2005), Allen L. Johnson, John Farley, Dale L. Perry
Fundamental And Applied Experimental Investigations Of Corrosion Of Steel By Lbe Under Controlled Conditions: Kinetics, Chemistry, Morphology, And Surface Preparation: Quarterly Report (January 2005-April 2005), Allen L. Johnson, John Farley, Dale L. Perry
Transmutation Sciences Materials (TRP)
This project has four components:
- The fabrication of a materials test apparatus with unique capabilities,
- Comparative studies of steel corrosion under gas phase conditions comparable to the Lead Bismuth Eutectic (LBE) oxygen control conditions,
- Isotope labeling studies, and
- Collaborative efforts with other workers in the field.
Summary of accomplishments:
- Started occupation of the High Temperature Materials Experimental Facility.
- Presented a paper at the meeting of the American Chemical Society in San Diego in March 13-17.
- Currently reviving the ion beam for implantation experiments.
- Currently analyzing 38 steel samples from the DELTA loop from LANL.
Design Concepts And Process Analysis For Transmuter Fuel Manufacturing: Quarterly Progress Report #2, Jamil M. Renno, Georg F. Mauer
Design Concepts And Process Analysis For Transmuter Fuel Manufacturing: Quarterly Progress Report #2, Jamil M. Renno, Georg F. Mauer
Fuels Campaign (TRP)
This report discusses mainly the fabrication of inert matrix fuels. There are three fabrication routes to obtain inert matrix fuels (IMF). IMF is a dispersion-type fuel in which the actinide phase is distributed as a separate phase in a so called inert matrix. This concept has evolved as one of the most promising in the field of transmutation. The following section discusses each manufacturing route aside.
Response To Gutstein Generalized- A Philosophical Debate, Eric Gutstein
Response To Gutstein Generalized- A Philosophical Debate, Eric Gutstein
The Mathematics Enthusiast
It is a pleasure, challenge, and an honor to respond to the thoughtful and innovative debate started by Braver, Micklus, Bradley, van Spronsen, Allen, & Campbell on teaching mathematics for social justice. They take seriously the issues in, and raise many interesting views about, my article, Teaching and Learning Mathematics for Social Justice in an Urban Latino School (JRME, January, 2003). I would like to respond to (connected) two points in particular: the relationship of functional to critical literacies, and the relationship of “critical thinking” in mathematics to learning mathematics for social justice. However, I would first like to clarify …
Continuing Analysis Of Phytoplankton Nutrient Limitation In Farmington Bay And The Great Salt Lake, Wayne A. Wurtsbaugh, Amy M. Marcarelli
Continuing Analysis Of Phytoplankton Nutrient Limitation In Farmington Bay And The Great Salt Lake, Wayne A. Wurtsbaugh, Amy M. Marcarelli
Watershed Sciences Faculty Publications
Farmington Bay is a nutrient-enriched, highly eutrophic embayment of the Great Salt Lake. The highly variable salinity of the bay influences what species of plankton can survive there. Previous analyses suggested that cyanobacteria (blue-green algae) may not be able to survive or fix atmospheric nitrogen at high salinities, thus maintaining the lake in a nitrogen-limited state. To determine the interacting influence of nutrients and salinity on the growth and nitrogen fixation of plankton we performed a 28-day bioassay with water from Farmington and Gilbert Bays in October 2004. We tested the response of the plankton to additions of nitrogen (N) …
Double-Stranded Rna-Dependent Protein Kinase (Pkr) Is Downregulated By Phorbol Ester, Yan Zhou, Barbara I. Chase, Mark Whitmore, Bryan R.G. Williams, Aimin Zhou
Double-Stranded Rna-Dependent Protein Kinase (Pkr) Is Downregulated By Phorbol Ester, Yan Zhou, Barbara I. Chase, Mark Whitmore, Bryan R.G. Williams, Aimin Zhou
Chemistry Faculty Publications
The double-stranded RNA-dependent protein kinase (PKR) is one of the key mediators of interferon (IFN) action against certain viruses. PKR also plays an important role in signal transduction and immunomodulation. Understanding the regulation of PKR activity is important for the use of PKR as a tool to discover and develop novel therapeutics for viral infections, cancer and immune dysfunction. We found that phorbol 12-myristate 13-acetate (PMA), a potent activator of protein kinase C (PKC), decreased the level of autophosphorylated PKR in a dose- and time-dependent manner in IFN-treated mouse fibroblast cells. Polyinosinic–polycytidylic acid (poly I:C) treatment enhanced the activity of …