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2008

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Noise Coupling Between Signal And Power/Ground Nets Due To Signal Vias Transitioning Through Power/Ground Plane Pair, Jun Fan, Matteo Cocchini, Bruce Archambeault, James L. Knighten, James L. Drewniak, Samuel Connor Jan 2008

Noise Coupling Between Signal And Power/Ground Nets Due To Signal Vias Transitioning Through Power/Ground Plane Pair, Jun Fan, Matteo Cocchini, Bruce Archambeault, James L. Knighten, James L. Drewniak, Samuel Connor

Electrical and Computer Engineering Faculty Research & Creative Works

Signal vias are often used to move a signal from one PCB layer to another. as a result, these vias can penetrate power/ground plane pair and cause noise coupling (crosstalk) between signal and power/ground nets. This paper studies the noise coupling mechanism using a segmentation approach combined with a via capacitance model and a plane-pair cavity model. Noise coupling from signal to power/ground, and vice versa, is demonstrated in the modeling results.

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Block-By-Block Link-Path Analysis And Design With Physics-Based Models, James L. Drewniak Jan 2008

Block-By-Block Link-Path Analysis And Design With Physics-Based Models, James L. Drewniak

Electrical and Computer Engineering Faculty Research & Creative Works

Link-path analysis and design by block can provide insight into performance and tighter performance budgeting.

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Fit Numerical Modeling For Emi Discovery And "Design", James L. Drewniak Jan 2008

Fit Numerical Modeling For Emi Discovery And "Design", James L. Drewniak

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.

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The Class Of 2008, Florence Soyinka Jan 2008

The Class Of 2008, Florence Soyinka

The Park Place Economist

No abstract provided.

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Columbia University/Vireo-Cityu/Irit Trecvid2008 High-Level Feature Extraction And Interactive Video Search, Shih-Fu Chang, Junfeng He, Yu-Gang Jiang, Elie El Khoury, Chong-Wah Ngo, Akira Yanagawa, Eric Zavesky Jan 2008

Columbia University/Vireo-Cityu/Irit Trecvid2008 High-Level Feature Extraction And Interactive Video Search, Shih-Fu Chang, Junfeng He, Yu-Gang Jiang, Elie El Khoury, Chong-Wah Ngo, Akira Yanagawa, Eric Zavesky

Research Collection School Of Computing and Information Systems

In this report, we present overview and comparative analysis of our HLF detection system, which achieves the top performance among all type-A submissions in 2008. We also describe preliminary evaluation of our video search system, CuZero, in the interactive search task.

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Church Growth In Tonga: Historical And Cultural Connections, Michael A. Goodman Jan 2008

Church Growth In Tonga: Historical And Cultural Connections, Michael A. Goodman

Faculty Publications

Tēvita Muli Kinikini (1905–84) was a Tongan Latter-day Saint pioneer of great faith.1 His father, Taniela Kinikini, was a member of the Free Church of Tonga and also a man of mighty faith and spiritual gifts. Muli married Le‘o Tukui, whose father was a member of The Church of Jesus Christ of Latter- day Saints. Touched by the Spirit while listening to the mission- aries, Muli announced his intention to be baptized. In response, his parents threatened a double suicide, and his uncle, one of the nobles of his island, threatened to take away Muli’s land. Muli answered him: “Do …

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When You Have To Dump It, M. Thulasidas Jan 2008

When You Have To Dump It, M. Thulasidas

Research Collection School Of Computing and Information Systems

It makes sense to cut further losses and such containment efforts are routine events in most establishments.

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Respiratory Kinematics Of Adult Males During Graded Listening Tasks, Laura Lerette Gingrich Jan 2008

Respiratory Kinematics Of Adult Males During Graded Listening Tasks, Laura Lerette Gingrich

Dissertations and Theses @ UNI

Covert speech movements have been observed to increase with linguistic complexity during listening tasks. This study investigated the presence of covert respiratory movements during listening tasks of increasing complexity to answer the following research questions: 1. Do normal adult male listeners aged fifty and above without central nervous system injury change from rest breathing patterns to speech breathing patterns while listening to passages of increasing complexity; 2. Is there a greater shift towards speech breathing while listening to passages of greater complexity? Chest wall kinematics often male participants were obtained and analyzed for significant changes from rest breathing during four …

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A Graduate Recital In Voice, Carmelita Guse Jan 2008

A Graduate Recital In Voice, Carmelita Guse

Dissertations and Theses @ UNI

Carmelita Guse, soprano, presented a graduate voice recital on Friday, October 17, 2008 at 6:00 p.m. in Davis Hall of the Gallagher-Bluedorn Performing Arts Center on the University of Northern Iowa campus. The recital was given in partial fulfillment of the requirements of the Master of Music degree in Vocal Performance. It was presented in collaboration with pianist Kyung Lee, and contained art songs by Henry Purcell, Gustav Mahler, Ernest Chausson, and a cycle of spirituals by John Carter.

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A Graduate Recital In Conducting (Orchestra), Philipp Gulidov Jan 2008

A Graduate Recital In Conducting (Orchestra), Philipp Gulidov

Dissertations and Theses @ UNI

A Graduate Conducting Recital, by Philipp Gulidov, was presented on Wednesday, March 12, 2008 at 8:00 p.m. in Davis Hall at the University of Northern Iowa. The recital was presented in partial fulfillment of the Master of Music degree in Conducting. The performers for this recital were Adam Ebert, tenor, Benjamin Fox, bassoon, and the Northern Iowa Chamber Orchestra. The program consisted of five works from different historical periods: Classic, Romantic, early and late Twentieth Century. The works presented included Chamber Symphony No. J "Spring", op. 43 by Darius Milhaud, Mozart's Symphony no. 15 in G major, K. 124, "Vaudemont's …

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From Heteronormative To Strategic Ambiguity: Crafting A Scholarly Sexual Persona, Kelsey Anne Harr Jan 2008

From Heteronormative To Strategic Ambiguity: Crafting A Scholarly Sexual Persona, Kelsey Anne Harr

Dissertations and Theses @ UNI

All of the choices scholars make, from what to study to how to study it, are political and moral choices, and they speak as loudly about the scholar as they do about the text. Although scholars often engage in discussions about how their sex, race, class, and gender interact with their scholarly work, very few of them seem to spend time and space thematizing their sexual orientations. Using rhetorical methods, I identify three ways that scholars thematize sexual orientation in scholarly writing. First, an overt persona is demonstrated by scholars who explicitly state their sexual orientations. This option removes any …

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An Examination Of Intercultural Communication Training Programs For U.S. Sojourners In Denominational And Non-Denominational Organizations, Stuart L. Holsing Jan 2008

An Examination Of Intercultural Communication Training Programs For U.S. Sojourners In Denominational And Non-Denominational Organizations, Stuart L. Holsing

Dissertations and Theses @ UNI

Whether for business or personal pleasure, service projects or military service, each year millions travel to destinations very different from their own culture. The preparation of the sojourner for effective interaction in their host culture will largely determine success or failure in meeting the mutual objectives all parties involved. My experiences both as a participant and leader of seven different teams of volunteers with Christian agencies led me to investigate what training is given to equip sojourners for the challenges they will face in navigating the unfamiliar territory of cultural differences in the course of performing their mission. How is …

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Forecasting Model For Air Taxi, Commercial Airline, And Automobile Demand In The United States, Hojong Baik, Antonio A. Trani, Nicolas Hinze, Howard Swingle, Senanu Ashiabor, Anand Seshadri Jan 2008

Forecasting Model For Air Taxi, Commercial Airline, And Automobile Demand In The United States, Hojong Baik, Antonio A. Trani, Nicolas Hinze, Howard Swingle, Senanu Ashiabor, Anand Seshadri

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A nationwide model predicts the annual county-to-county person roundtrips for air taxi, commercial airline, and automobile at 1-year intervals through 2030. the transportation systems analysis model (TSAM) uses the four-step transportation systems modeling process to calculate trip generation, trip distribution, and mode choice for each county origin-destination pair. Network assignment is formulated for commercial airline and air taxi demand. TSAM classifies trip rates by trip purpose, household income group, and type of metropolitan statistical area from which the round-trip started. a graphical user interface with geographic information systems capability is included in the model. Potential applications of the model are …

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Anomalous Magnetic Ordering In Prba₂Cu₄O₈ And Cmba₂Cu₃O₇, H. A. Blackstead, M. P. Smylie, William B. Yelon, Qingsheng Cai, Mehmet Kahveci Jan 2008

Anomalous Magnetic Ordering In Prba₂Cu₄O₈ And Cmba₂Cu₃O₇, H. A. Blackstead, M. P. Smylie, William B. Yelon, Qingsheng Cai, Mehmet Kahveci

Physics Faculty Research & Creative Works

A review of temperature-dependent magnetization data for nonsuperconducting PrBa2Cu4O8 and CmBa2Cu3O7 suggests that the failure of each to superconduct is related to the presence of Pr and Cm on their respective Ba sites. This defect is manifested, in each case, by short c-axis lattice parameters and anomalous high-temperature magnetic ordering which has been incorrectly attributed to ordering of the entire magnetic sublattice. Instead, it is shown that the anomalous high-temperature ordering as seen in the magnetization data is consistent with the ordering of magnetic ions substituted on the Ba site.

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Projectile Angular-Differential Cross Sections For Transfer And Transfer Excitation In Proton Collisions With Helium, M. Zapukhlyak, T. Kirchner, Ahmad Hasan, B. Tooke, Michael Schulz Jan 2008

Projectile Angular-Differential Cross Sections For Transfer And Transfer Excitation In Proton Collisions With Helium, M. Zapukhlyak, T. Kirchner, Ahmad Hasan, B. Tooke, Michael Schulz

Physics Faculty Research & Creative Works

Projectile angular-differential cross sections for single-transfer and transfer excitation have been calculated with the two-center extension of the nonperturbative basis generator method for 5-200 keV proton-helium collisions. The calculations are based on the independent electron model, and the eikonal approximation has been used to extract angular-differential cross sections from impact-parameter-dependent transition amplitudes. The present results are compared with experimental and previous theoretical data where available. In particular, we consider the ratio of transfer excitation to single capture versus double excitation to single excitation at intermediate energies. An experimentally observed structure in this ratio at a scattering angle about 0.5 mrad …

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Progress In Effect Of Jominy End Quench On The Microstructure And Mechanical Properties Of Cast Aluminum Alloys, Qingcai Liu, C. Lu, Joseph William Newkirk Jan 2008

Progress In Effect Of Jominy End Quench On The Microstructure And Mechanical Properties Of Cast Aluminum Alloys, Qingcai Liu, C. Lu, Joseph William Newkirk

Materials Science and Engineering Faculty Research & Creative Works

In this review, the current knowledge related to the relationship between the heat treatment process and the microstructure and mechanical properties of A356 aluminum alloys are summarized. The review also examines the use of the Jominy end quench (JEQ) specimen and its application to the examination of the effects of quench rate and subsequent processing. Using the design of experimental methods combined with the Jominy end quench technique, desired changes in microstructure and mechanical properties of alloys can be obtained. So, the experimental technique of the Jominy end quench was concerned in this work.

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Phantom For Evaluating Accuracy Of Image Registration Software, B. Y. Choe, H. S. Jin, R. H. Juh, Hyoung-Koo Lee, J. Y. Song, T. S. Suh Jan 2008

Phantom For Evaluating Accuracy Of Image Registration Software, B. Y. Choe, H. S. Jin, R. H. Juh, Hyoung-Koo Lee, J. Y. Song, T. S. Suh

Nuclear Engineering and Radiation Science Faculty Research & Creative Works

Provided is a phantom for evaluating the accuracy of image registration software based on a result of matching tomograms of a predetermined position of the phantom, taken using two or more imaging apparatuses. Accordingly, it is possible to more efficiently evaluate the accuracy of the image registration software by comparing the tomograms with one another using a three-dimensional analysis. In addition, it is possible to facilitate the comparison of the tomograms with one another by installing a plurality of indicating bars in the phantom so that their cross sections can appear on each of the tomograms.

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Hsin-Yi Serena Hou, Piano, Hsin-Yi Hou Jan 2008

Hsin-Yi Serena Hou, Piano, Hsin-Yi Hou

Dissertations and Theses @ UNI

Hsin-Yi Serena Hou presented a graduate piano recital at 6 p.m. on Wednesday, November 8, 2006 in Davis Hall of the Gallagher-Bluedorn Performing Arts Center at the University of Northern Iowa School of Music. The recital was presented in partial fulfillment of the Master of Music Degree requirements in Piano Performance. The recital program consisted of works by George Frederic Handel, Ludwig van Beethoven, and Felix Mendelssohn.

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Master Of Music Vocal Performance Recital, Janeen L. Jensen Jan 2008

Master Of Music Vocal Performance Recital, Janeen L. Jensen

Dissertations and Theses @ UNI

Janeen Jensen. soprano. presented a graduate vocal recital at 6 pm on Wednesday, November 30, 1994 in Russell Hall Auditorium at the University of Northern Iowa. Ms. Jensen was assisted by Marleta Matheson on piano. The recital was presented in partial fulfillment of the requirements for a Masters of Music degree in vocal performance. The repertoire selected represents a variety of challenging pieces with an emphasis on the 20th century. The program began with two of Gioacchino Rossini's art songs which highlighted the Romantic period. Repertory presenting the 20th century includes four of the Siehen Fruhe Lieder by Alban Berg …

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Western Images In African Media: A Semiotic Investigation Of Three Nigerian-Made Films, Terence Ebi Ekiseh Jan 2008

Western Images In African Media: A Semiotic Investigation Of Three Nigerian-Made Films, Terence Ebi Ekiseh

Dissertations and Theses @ UNI

This study makes a critical analysis of the portrayal of Western images in African-made films as represented in three selected Nigerian home-made movies. In other words, the study seeks to find out how images of Western European and North American cultures are portrayed in African films. The three films selected for the study are Spirit cf Love, Market Seller, and One Dollar. The films were selected on the basis of their popularity among Nigerian film audiences. They were also selected because they are recent, and are produced by renowned Nigerian filmmakers. The study utilized qualitative method to achieve its objective. …

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Efficient Mrf Approach To Document Image Enhancement, Tayo Obafemi-Ajayi, Gady Agam, Ophir Frieder Jan 2008

Efficient Mrf Approach To Document Image Enhancement, Tayo Obafemi-Ajayi, Gady Agam, Ophir Frieder

Electrical and Computer Engineering Faculty Research & Creative Works

Markov random field (MRF) based approaches have been shown to perform well in a wide range of applications. Due to the iterative nature of the algorithm, the computational cost of such applications is normally high. In the context of document image analysis, where numerous documents have to be processed, this computational cost may become prohibitive. We describe a novel approach to document image enhancement using MRF. We show that by using domain specific knowledge, we are able to substantially improve computational performance by an order of magnitude. Moreover, in contrast to known techniques where patch initialization is arbitrary, in the …

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Web-Based Service Exchange System For Agents And Humans Alike, Evens Jean, Machigar Ongtang, A. R. Hurson Jan 2008

Web-Based Service Exchange System For Agents And Humans Alike, Evens Jean, Machigar Ongtang, A. R. Hurson

Computer Science Faculty Research & Creative Works

Semantic Web research aims at bridging the gap between how humans and agents process information readily available on the Internet. One of the great challenges to this goal lies in the fact that humans, contrary to agents, can extract the meaning of words based on its context. This work introduces a service exchange system for the Web that allows agents to intelligently process information, as would humans. This is achieved by the use of thesauri to help agents resolve semantic heterogeneity in the information being processed. The framework for the exchange system has been realized under the aglet platform on …

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Wavelength Selection Using The Measure Of Topological Relevance On The Self-Organizing Map, Francesco Corona, Satu Pia Reinikainen, Kari Aaljoki, Annikki Perkiö, Elia Liitiäinen, Roberto Baratti, Olli Simula, Amaury Lendasse Jan 2008

Wavelength Selection Using The Measure Of Topological Relevance On The Self-Organizing Map, Francesco Corona, Satu Pia Reinikainen, Kari Aaljoki, Annikki Perkiö, Elia Liitiäinen, Roberto Baratti, Olli Simula, Amaury Lendasse

Engineering Management and Systems Engineering Faculty Research & Creative Works

In This Work, We Investigated the Possibility to Perform Wavelength Selection by Exploiting the Metric Structure of the Spectrophotoscopic Measurements. the Topologically Preserving Representation of the Data is Performed using the Self-Organizing Map (Som) Where the Inputs' Significance to the Output is Computed with the Measure of Topological Relevance (MTR) on Som. the MTR on Som is a Metric Measuring the Similarity between Local Distance Matrices and We Found that Spectral Inputs with a Topology, Which Is, Close to the Outputs Are Also Associated to the Wavelengths that Chemically Explain the Influence of the Spectra to the Property of Interest. …

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Energy Efficient Correlated Data Aggregation For Wireless Sensor Networks, Seung Jong Park, Raghupathy Sivakumar Jan 2008

Energy Efficient Correlated Data Aggregation For Wireless Sensor Networks, Seung Jong Park, Raghupathy Sivakumar

Computer Science Faculty Research & Creative Works

Data aggregations from Sensors to a sink in wireless sensor networks (WSNs) are typically characterized by correlation along the spatial, semantic, and temporal dimensions. Exploiting such correlation when performing data aggregation can result in considerable improvements in the bandwidth and energy performance of WSNs. For the sensors-to-sink data delivery, we first explore two theoretical solutions: the shortest path tree (SPT) and the minimum spanning tree (MST) approaches. To approximate the optimal solution (MST) in case of perfect correlation among data, we propose a new aggregation which combines the minimum dominating set (MDS) with the shortest path tree (SPT) in order …

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A Stabilized Rbf Collocation Scheme For Neumann Type Boundary Value Problems, Nicolas Ali Libre, Arezoo Emdadi, Edward J. Kansa, Mohammad Rahimian, Mohammad Shekarchi Jan 2008

A Stabilized Rbf Collocation Scheme For Neumann Type Boundary Value Problems, Nicolas Ali Libre, Arezoo Emdadi, Edward J. Kansa, Mohammad Rahimian, Mohammad Shekarchi

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The numerical solution of partial differential equations (PDEs) with Neumann boundary conditions (BCs) resulted from strong form collocation scheme are typically much poorer in accuracy compared to those with pure Dirichlet BCs. In this paper, we show numerically that the reason of the reduced accuracy is that Neumann BC requires the approximation of the spatial derivatives at Neumann boundaries which are significantly less accurate than approximation of main function. Therefore, we utilize boundary treatment schemes that based upon increasing the accuracy of spatial derivatives at boundaries. Increased accuracy of the spatial derivative approximation can be achieved by h-refmement reducing the …

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Stable Pde Solution Methods For Large Multiquadric Shape Parameters, Nicolas Ali Libre, Arezoo Emdadi, Edward J. Kansa, Mohammad Rahimian, Mohammad Shekarchi Jan 2008

Stable Pde Solution Methods For Large Multiquadric Shape Parameters, Nicolas Ali Libre, Arezoo Emdadi, Edward J. Kansa, Mohammad Rahimian, Mohammad Shekarchi

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

We present a new method based upon the paper of Volokh and Vilney (2000) that produces highly accurate and stable solutions to very ill-conditioned multiquadric (MQ) radial basis function (RBF) asymmetric collocation methods for partial differential equations (PDEs). We demonstrate that the modified Volokh-Vilney algorithm that we name the improved truncated singular value decomposition (IT-SVD) produces highly accurate and stable numerical solutions for large values of a constant MQ shape parameter, c, that exceeds the critical value of c based upon Gaussian elimination.

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Private Query On Encrypted Data In Multi-User Setting, Feng Bao, Robert H. Deng, Xuhua Ding, Yanjiang Yang Jan 2008

Private Query On Encrypted Data In Multi-User Setting, Feng Bao, Robert H. Deng, Xuhua Ding, Yanjiang Yang

Research Collection School Of Computing and Information Systems

Searchable encryption schemes allow users to perform keyword based searches on an encrypted database. Almost all existing such schemes only consider the scenario where a single user acts as both the data owner and the querier. However, most databases in practice do not just serve one user; instead, they support search and write operations by multiple users. In this paper, we systematically study searchable encryption in a practical multi-user setting. Our results include a set of security notions for multi-user searchable encryption as well as a construction which is provably secure under the newly introduced security notions.

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Document Selection For Extracting Entity And Relationship Instances Of Terrorist Events, Zhen Sun, Ee Peng Lim, Kuiyu Chang, Maggy Anastasia Suryanto, Rohan Kumar Gunaratna Jan 2008

Document Selection For Extracting Entity And Relationship Instances Of Terrorist Events, Zhen Sun, Ee Peng Lim, Kuiyu Chang, Maggy Anastasia Suryanto, Rohan Kumar Gunaratna

Research Collection School Of Computing and Information Systems

In this chapter, we study the problem of selecting documents so as to extract terrorist event information from a collection of documents. We represent an event by its entity and relation instances. Very often, these entity and relation instances have to be extracted from multiple documents. We therefore define an information extraction (IE) task as selecting documents and extracting from which entity and relation instances relevant to a user-specified event (aka domain specific event entity and relation extraction). We adopt domain specific IE patterns to extract potentially relevant entity and relation instances from documents, and develop a number of document …

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Archaeological Investigations On Little Folly Island, Steven D. Smith Jan 2008

Archaeological Investigations On Little Folly Island, Steven D. Smith

Faculty Publications

No abstract provided.

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Validation Of An Nsp-Based (Negative Selection Pattern) Gene Family Identification Strategy, Ronald L. Frank, Cyriac Kandoth, Fikret Erçal Jan 2008

Validation Of An Nsp-Based (Negative Selection Pattern) Gene Family Identification Strategy, Ronald L. Frank, Cyriac Kandoth, Fikret Erçal

Biological Sciences Faculty Research & Creative Works

Background: Gene family identification from ESTs can be a valuable resource for analysis of genome evolution but presents unique challenges in organisms for which the entire genome is not yet sequenced. We have developed a novel gene family identification method based on negative selection patterns (NSP) between family members to screen EST-generated contigs. This strategy was tested on five known gene families in Arabidopsis to see if individual paralogs could be identified with accuracy from EST data alone when compared to the actual gene sequences in this fully sequenced genome. Results: The NSP method uniquely identified family members in all …

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