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2006

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The Radio Structure Of Radio-Quiet Quasars, C. Leipski, H. Falcke, N. Bennert, S. Hüttenmeister Aug 2006

The Radio Structure Of Radio-Quiet Quasars, C. Leipski, H. Falcke, N. Bennert, S. Hüttenmeister

Physics

Aims. We investigate the radio emitting structures of radio-quiet active galactic nuclei with an emphasis on radio-quiet quasars to study their connection to Seyfert galaxies. Methods. We present and analyse high-sensitivity VLA radio continuum images of 14 radio-quiet quasars and six Seyfert galaxies. Results. Many of the low redshift radio-quiet quasars show radio structures that can be interpreted as jet-like outflows. However, the detection rate of extended radio structures on arcsecond scales among our sample decreases with increasing redshift and luminosity, most likely due to a lack of resolution. The morphologies of the detected radio emission indicate strong interactions of …

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Finding A Balance Between Church And Academia: Baptist Theological Education In Estonia, Toivo Pilli Aug 2006

Finding A Balance Between Church And Academia: Baptist Theological Education In Estonia, Toivo Pilli

Occasional Papers on Religion in Eastern Europe

No abstract provided.

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The Determination Of 3d Multiwavelet Transform, W. A., M. S. Abdulwahab, H. N. Altaie Aug 2006

The Determination Of 3d Multiwavelet Transform, W. A., M. S. Abdulwahab, H. N. Altaie

Iraqi Journal of Computers, Communications, Control and Systems Engineering

The relatively new field of multiwavelets shows promise in removing some of the limitations of wavelets. Multiwavelets offer more design options and hence can combine all desirable transform features. In this paper several new algorithms for computing advance transforms are proposed. Firstly a fast procedure for computing of 1-D and 2-D multiwavelet transforms is introduced. Secondly, for the first time, a complete new procedure for computing of 3-D multiwavelet transforms is given. Thirdly, the inverse procedures of all the above transform for multi-dimensional cases are verified. In addition to the mathematical prove, all these new algorithms were verified also using …

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Analysis Of Energy Consumption In Continuous Galvanizing Lines, Raviraj Ratnakar Chavan Aug 2006

Analysis Of Energy Consumption In Continuous Galvanizing Lines, Raviraj Ratnakar Chavan

Graduate Theses, Dissertations, and Problem Reports (ETD)

The pot hardware in continuous galvanizing lines is prone to failure and needs to be replaced quite frequently. This resulted in considerable loss of production time. Also equipment like, the molten zinc pot and annealing furnace cannot be turned off during downtime resulting in considerable energy consumption during downtime too.;A profound study of the energy aspect of the equipment used on galvanizing line was done. A systematic approach was used to collect and analyze the data from galvanizing facilities. A decision support system (DSS) that will take into account all the major energy consuming equipment in a typical hot dip …

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Evidence Of An Active Enso And Pdq During The Mid-Holocene From A Costa Rican Speleothem, April D. Azouz Aug 2006

Evidence Of An Active Enso And Pdq During The Mid-Holocene From A Costa Rican Speleothem, April D. Azouz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Although the El Nino/Southern Oscillation (ENSO) is the most important source of inter-annual climate variability in the tropics, its Holocene history is poorly understood, particularly in Central America. A high resolution (-3.8 years/sample) paleoclimate record of Central American rainfall variability has been reconstructed from a U /Th-dated stalagmite (7890 to 6490 yrs B.P.) from Costa Rica to constrain the onset and variability of ENSO throughout the Holocene, and to determine its role in generating regional climate anomalies. I suggest drier conditions, forced by El Nino, are represented by higher 5180 values, and are correlative with higher 513C values, indicating that …

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2006 August, Office Of Communications & Marketing, Morehead State University. Aug 2006

2006 August, Office Of Communications & Marketing, Morehead State University.

Morehead State Press Release Archive, 1961 to the Present

Press releases for August 2006.

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Image Colorization Using Anisotropic Diffusion, Rahma A., A. A. Hussain Aug 2006

Image Colorization Using Anisotropic Diffusion, Rahma A., A. A. Hussain

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Adding colors to all pixels in monochrome image are difficulty performed. It requires considerable user intervention and remains a tedious, time-consuming, expensive task with no certain results. The previous methods have not the wanted color-scale and the harmony in colors used. This paper presents semi-automatic image colorization, where the user only needs to annotate the image with a few desirable color scribbles depending on the user’s choice and the indicated colors are automatically diffused to produce a fully colorized image. The execution depending on the geometry and structure of the monochrome luminance input, given by its gradient information, The color …

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Hybrid Neuro-Genetic Based Controller Of Power System, Akram Fajer Bati, Nabil E. Adam Aug 2006

Hybrid Neuro-Genetic Based Controller Of Power System, Akram Fajer Bati, Nabil E. Adam

Iraqi Journal of Computers, Communications, Control and Systems Engineering

EVolutionary algorithms, Genetic algorithms in particular, are known to be robust and have been increasing popularity in the field of numerical optimization. Neural networks and genetic algorithms demonstrate powerful problem solving ability. They are based on quite simple principles, but take advantage of their mathematical nature: non-linear iteration. Neural networks with back-propagation learning showed results by searching for various kinds of functions. However, the choice of the basic global performance index ( parameter weights) often already determines the success of the training process. The study presents a hybrid controller system; has been optimized by genetic algorithm optimization tool. GA based …

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Modeling And Simulation Of Schematic Quantum Cryptography System Based Entangled Photons, Sadeeq Y. Ameen, Mohammed A. Abdullah, Salih H. Ali Aug 2006

Modeling And Simulation Of Schematic Quantum Cryptography System Based Entangled Photons, Sadeeq Y. Ameen, Mohammed A. Abdullah, Salih H. Ali

Iraqi Journal of Computers, Communications, Control and Systems Engineering

The paper investigates many problems in quantum systems by using the modeling of optical components using Jones matrices. These methods give high flexibility to choose perfect model and ideal measurements base of Alice and Bob. The simulated source uses polarization entangled photons from spontaneous parametric down-conversion. The proposed model of Ekert's quantum cryptography protocol, is also simulated based on modeling the optical components by Jones matrices. Bell's inequality is computed to detect the eavesdropper. The results show the effect of the eavesdropper on the Bit Error Rate (BER) and S factor of Bell's inequality. The eavesdropper affects more on the …

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August 2006 Volume 2, Number 3, Winthrop University Archives And Special Collections Aug 2006

August 2006 Volume 2, Number 3, Winthrop University Archives And Special Collections

Retrospect: News from the Louise Pettus Archives and Special Collections at Winthrop University

No abstract provided.

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Exact Casimir Interaction Between Eccentric Cylinders, D. A. R. Dalvit, F. C. Lombardo, F. D. Mazzitelli, R. Onofrio Aug 2006

Exact Casimir Interaction Between Eccentric Cylinders, D. A. R. Dalvit, F. C. Lombardo, F. D. Mazzitelli, R. Onofrio

Dartmouth Scholarship

The Casimir force is the ultimate background in ongoing searches for extragravitational forces in the micrometer range. Eccentric cylinders offer favorable experimental conditions for such measurements as spurious gravitational and electrostatic effects can be minimized. Here we report on the evaluation of the exact Casimir interaction between perfectly conducting eccentric cylinders using a mode summation technique, and study different limiting cases of relevance for Casimir force measurements, with potential implications for the understanding of mechanical properties of nanotubes.

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Programs And Courses 2006-2008, University Of Northern Iowa Aug 2006

Programs And Courses 2006-2008, University Of Northern Iowa

UNI Programs and Courses Catalogs

This catalog is published for students and other persons who want to know more about the University of Northern Iowa. Its purpose is to communicate as objectively and completely as possible what the university is and what it does. The catalog is presented in sections to give a general view of the university as well as the detailed information required for informed decision making.

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Metric Measurements On A Plane From A Single Image, Micah K. Johnson, Hany Farid Aug 2006

Metric Measurements On A Plane From A Single Image, Micah K. Johnson, Hany Farid

Computer Science Technical Reports

The past decade has seen considerable advances in the application of principles from projective geometry to problems in image analysis and computer vision. In this paper, we review a subset of this work, and leverage these results for the purpose of forensic analysis. Specifically, we review three techniques for making metric measurements on planar surfaces from a single image. The resulting techniques should prove useful in forensic settings where real-world measurements are required.

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A Pc-Based Fluid And Heat Transfer Analyzer For Two-Phase Flow In Pipes, Gbolahan Afonja Aug 2006

A Pc-Based Fluid And Heat Transfer Analyzer For Two-Phase Flow In Pipes, Gbolahan Afonja

Graduate Theses, Dissertations, and Problem Reports (ETD)

Modeling the simultaneous flow of gas and liquid or two-phase gas-liquid flow in pipes is a key aspect in petroleum production. These models can enhance our ability to estimate fluid properties, predict pressure loss, liquid holdup, and flow pattern, and to see the effects of introducing concepts such as heat transfer to the system. Modeling two-phase flow phenomenon also allows visualization of the interaction of one property or parameter to another. The understanding of heat transfer in two-phase gas-liquid flow is important for economic and optimized operations.;This work focuses on the design of a PC-Based Software for modeling the effect …

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Effects Of Duty Cycles On Diesel Engine Component Life Estimation, Dave Jayasinghe Aug 2006

Effects Of Duty Cycles On Diesel Engine Component Life Estimation, Dave Jayasinghe

Graduate Theses, Dissertations, and Problem Reports (ETD)

Engine manufactures have relied on over designed of engines and performance testing to ensure product reliability. The efforts to maximize efficiency and to predict performance characteristics have evoked an interest to study the in-cylinder pressure throughout the respective duty cycle. The duty cycle of an engine is defined as the history of speed and load conditions over which the engine operates in a specific application. Understanding the transient on-road diesel engine duty cycles has been one of major goals for the engine developers. To date there have not been any research performed to identify a wide variety of on-road diesel …

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Image Up-Sampling Using The Discrete Wavelet Transform, Laleh Asgharian Aug 2006

Image Up-Sampling Using The Discrete Wavelet Transform, Laleh Asgharian

Theses and Dissertations - UTB/UTPA

Image up-sampling is an effective technique, useful in today's digital image processing applications and rendering devices. In image up-sampling, an image is enhanced from a lower resolution to a higher resolution with the degree of enhancement depending upon application requirements. It is known that the traditional interpolation based approaches for up-sampling, such as the Bilinear or Bicubic interpolations, blur the resultant images along edges and image features. Furthermore, in color imagery, these interpolation-based up-sampling methods may have color infringing artifacts in the areas where the images contain sharp edges and fine textures. We present an interesting up-sampling algorithm based on …

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Electrorheology Of Fullerene Suspensions, Maricela Lizcano Aug 2006

Electrorheology Of Fullerene Suspensions, Maricela Lizcano

Theses and Dissertations - UTB/UTPA

Electrorheological fluids are suspension materials whose rheological behavior changes with an applied voltage. In particular, the material changes from a fluid to a solid behavior with an applied voltage and reverses to its original state when the voltage is removed. This function classifies ER fluids as smart materials. ER fluids may be developed and used as mechanical devices with no mechanical parts such as pumps, actuators, and dampers. Until recently, research was concentrated with micro-particle suspension fluids. This research project investigates the electrorheology of carbon nano-particle suspension.

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Magnetic Moment Softening And Domain Wall Resistance In Ni Nanowires, John D. Burton, Renat F. Sabirianov, Sitaram S. Jaswal, Evgeny Y. Tsymbal, O. N. Mryasov Aug 2006

Magnetic Moment Softening And Domain Wall Resistance In Ni Nanowires, John D. Burton, Renat F. Sabirianov, Sitaram S. Jaswal, Evgeny Y. Tsymbal, O. N. Mryasov

Evgeny Tsymbal Publications

We perform ab initio calculations of the electronic structure and conductance of atomic-size Ni nanowires with domain walls only a few atomic lattice constants wide. We show that the hybridization between noncollinear spin states leads to a reduction of the magnetic moments in the domain wall resulting in the enhancement of the domain wall resistance. Experimental studies of the magnetic moment softening may be feasible with modern techniques such as scanning tunneling spectroscopy.

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Total Dissociative Electron Attachment Cross Sections For Molecular Constituents Of Dna, Kayvan Aflatooni, A.M. Scheer, Paul Burrow Aug 2006

Total Dissociative Electron Attachment Cross Sections For Molecular Constituents Of Dna, Kayvan Aflatooni, A.M. Scheer, Paul Burrow

Paul Burrow Publications

Total cross sections for the dissociative electron attachment process are presented for the DNA bases thymine, cytosine, and adenine and for three compounds used as surrogates for the ribose and phosphate groups, tetrahydrofuran, 3-hydroxytetrahydrofuran, and trimethylphosphate, respectively. Cross section magnitudes are obtained by observation of positive ion production and normalization to ionization cross sections calculated elsewhere using the binary-encounter-Bethe method. The average cross section of the three bases is 3–10 times smaller than the effective cross section per nucleotide reported for single strand breaks in surface-bound super-coiled DNA. Consequently, damage to the bases alone does not appear to account for …

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Cobaltocene Adsorption And Dissociation On Cu(1 1 1), Jaewu Choi, Peter A. Dowben Aug 2006

Cobaltocene Adsorption And Dissociation On Cu(1 1 1), Jaewu Choi, Peter A. Dowben

Peter Dowben Publications

Photoemission results indicate that the initial adsorption of cobaltocene on Cu(1 1 1) at 150 K leads to molecular fragmentation, but with subsequent cobaltocene exposures, molecular absorption occurs. The molecularly adsorbed species is either adsorbed with only a fraction of molecules adopting a preferential orientation along the surface normal or adsorbed with the molecular axis away from the surface normal. This adsorption behavior is compared to nickelocene and ferrocene adsorption.

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Susceptibility Of Greater Sage-Grouse To Experimental Infection With West Nile Virus, Larry Clark, Jeffrey Hall, Robert Mclean, Michael Dunbar, Kaci Klenk, Richard Bowen, Cynthia A. Smeraski Aug 2006

Susceptibility Of Greater Sage-Grouse To Experimental Infection With West Nile Virus, Larry Clark, Jeffrey Hall, Robert Mclean, Michael Dunbar, Kaci Klenk, Richard Bowen, Cynthia A. Smeraski

United States Department of Agriculture Wildlife Services: Staff Publications

Populations of greater sage-grouse (Centrocercus urophasianus) have declined 45– 80% in North America since 1950. Although much of this decline has been attributed to habitat loss, recent field studies have indicated that West Nile virus (WNV) has had a significant negative impact on local populations of grouse. We confirm the susceptibility of greater sage-grouse to WNV infection in laboratory experimental studies. Grouse were challenged by subcutaneous injection of WNV (103.2 plaque-forming units [PFUs]). All grouse died within 6 days of infection. The Kaplan-Meier estimate for 50% survival was 4.5 days. Mean peak viremia for nonvaccinated birds was 106.4 PFUs/ml (6100.2 …

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Upper Flow Regime Sheets, Lenses And Scour Fills: Extending The Range Of Architectural Elements For Fluvial Sediment Bodies, Christopher R. Fielding Aug 2006

Upper Flow Regime Sheets, Lenses And Scour Fills: Extending The Range Of Architectural Elements For Fluvial Sediment Bodies, Christopher R. Fielding

Department of Earth and Atmospheric Sciences: Faculty Publications

Fluvial strata dominated internally by sedimentary structures of interpreted upper flow regime origin are moderately common in the rock record, yet their abundance is not appreciated and many examples may go unnoticed. A spectrum of sedimentary structures is recognised, all of which occur over a wide range of scale: 1. cross-bedding with humpback, sigmoidal and ultimately low-angle cross-sectional foreset geometries (interpreted as recording the transition from dune to upper plane bed bedform stability field), 2. planar/flat lamination with parting lineation, characteristic of the upper plane bed phase, 3. flat and low-angle lamination with minor convex-upward elements, characteristic of the transition …

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Whole Earth Telescope Observations Of The Pulsating Subdwarf B Star Pg 0014+067, Maja Vučković, Matt A. Wood, V. Wilkat Aug 2006

Whole Earth Telescope Observations Of The Pulsating Subdwarf B Star Pg 0014+067, Maja Vučković, Matt A. Wood, V. Wilkat

Aerospace, Physics, and Space Science Faculty Publications

PG 0014+067 is one of the most promising pulsating subdwarf B stars for seismic analysis, as it has a rich pulsation spectrum. The richness of its pulsations, however, poses a fundamental challenge to understanding the pulsations of these stars, as the mode density is too complex to be explained only with radial and nonradial low-degree (l < 3) p-modes without rotational splittings. One proposed solution, suggested by Brassard et al. in 2001 for the case of PG 0014+067 in particular, assigns some modes with high degree (l - 3). On the other hand, theoretical models of sdB stars suggest that they may retain rapidly rotating cores, and so the high mode density may result from the presence of a few rotationally split triplet (l = 1) and quintuplet (l = 2) modes, along with radial (l = 0)p-modes. To examine alternative theoretical models for these stars, we need better frequency resolution and denser longitude coverage. Therefore, we observed this star with the Whole Earth Telescope for two weeks in 2004 October. In this paper we report the results of Whole Earth Telescope observations of the pulsating subdwarf B star PG 0014+067. We find that the frequencies seen in PG 0014+067 do not appear to fit any theoretical model currently available; however, we find a simple empirical relation that is able to match all of the well-determined frequencies in this star.

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"What's Your Fantasy?" The Sexual Objectification Of Women In Rap Videos, Dorothy E. Blue Aug 2006

"What's Your Fantasy?" The Sexual Objectification Of Women In Rap Videos, Dorothy E. Blue

Masters Theses and Doctoral Dissertations

For many African American youth, hip hop has been a part of their cultural identity since the 1970s (George 1998; Rose 1994). From its inception three decades ago, hip hop has grown from an urban (predominantly black and Latino youth) culture into an international youth phenomenon, transcending racial and ethnic lines. Prior research indicates that male artists tend to rule the video world. Furthermore, the portrayal of women in these videos produces an acceptance of violence and sexual objectification toward women. The purpose of this study is to look at the sexual objectification of women in rap videos. This study …

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Sustainable Development Or Just Plain Development? An Analysis Of Sustainability Indicators For Chattanooga, Tennessee, Cheryl Horn Aug 2006

Sustainable Development Or Just Plain Development? An Analysis Of Sustainability Indicators For Chattanooga, Tennessee, Cheryl Horn

Masters Theses and Doctoral Dissertations

The city of Chattanooga, Tennessee, and the surrounding area has undergone a notable transformation in recent decades. Many of these changes have been used to promote the city as an environmentally friendly place to live, and the phrase sustainable development is frequently used to describe local growth and planning. However, no comprehensive analysis has been undertaken to determine whether Chattanooga is truly headed toward becoming a sustainable community in terms of environmental, social, and economic considerations. Based on the concept of sustainable development, as defined by the United Nations and others, and on sustainability studies conducted in four other cities, …

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High Resolution Millimeter Wave Detection Of Vertical Cracks In The Space Shuttle External Tank Spray-On-Foam Insulation (Sofi), Sergey Kharkovsky, R. Zoughi, F. L. Hepburn Aug 2006

High Resolution Millimeter Wave Detection Of Vertical Cracks In The Space Shuttle External Tank Spray-On-Foam Insulation (Sofi), Sergey Kharkovsky, R. Zoughi, F. L. Hepburn

Electrical and Computer Engineering Faculty Research & Creative Works

Space Shuttle Columbia's catastrophic failure, the separation of a piece of spray-on-foam insulation (SOFI) from the external tank (ET) in the Space Shuttle Discovery's flight in 2005 and crack detected in its ET foam prior to its successful launch in 2006 emphasize the need for effective nondestructive methods for inspecting the shuttle ET SOFI. Millimeter wave nondestructive testing methods have been considered as potential and effective inspection tools for evaluating the integrity of the SOFI. This paper presents recent results of an investigation for the purpose of detecting vertical cracks in SOFI panels using a focused millimeter wave (150 GHz) …

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Connecting Health Concepts And Health Behavior : The Construction Of Health Identity., Valerie French Aug 2006

Connecting Health Concepts And Health Behavior : The Construction Of Health Identity., Valerie French

Electronic Theses and Dissertations

This thesis is an historical, theoretical and empirical examination of women's health concepts and health behavior in contemporary consumer-oriented American society. It begins with an historical overview of social health movements to illustrate how health concepts are shaped by cultural, social, political, and moral beliefs and practices. It then traces the socio-cultural construction of "health" to understand how this concept is shaped by various social and individual factors. The qualitative methodology of grounded theory was used to examine empirically how a sample of women defines "health" and what behaviors they engage in related to "health." Non-random convenience sampling was employed …

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Machine Vision Applications In Uavs For Autonomous Aerial Refueling And Runway Detection, Larry W. Rowe Ii Aug 2006

Machine Vision Applications In Uavs For Autonomous Aerial Refueling And Runway Detection, Larry W. Rowe Ii

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research focuses on the application of Machine Vision (MV) techniques and algorithms to the problems of Autonomous Aerial Refueling (AAR) and Runway Detection. In particular, real laboratory based hardware was used in a simulated environment to emulate real-life conditions for AAR. It was shown that the K-Means Clustering Algorithm solution to the Marker Detection problem could be executed at a frame rate of 30 Hz and it averaged a tracking error of less than one pixel while utilizing only 0.16% of the image. It was also shown that the solution to the Runway Detection problem could be executed at …

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Productivity Index Of Multilateral Wells, Upender Naik Nunsavathu Aug 2006

Productivity Index Of Multilateral Wells, Upender Naik Nunsavathu

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the history of petroleum science there are a vast variety of productivity solutions for different well types, well configurations and flow regimes. The main well types that were considered for calculating the productivity indexes were vertical wells and horizontal wells. The configurations considered were multilayer perforations, dual lateral wells with laterals at same depths, stacked wells etc. There are few solutions to estimate the well productivity for complex configurations like multilateral wells.;The main objective of this work is to identify a numerical solution method for calculating productivity indexes for different well configurations like single vertical well, single horizontal well, …

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Cycles And Weight Effects On Emissions And Development Of Predictive Emissions Models For Heavy Duty Trucks, Kuntal A. Vora Aug 2006

Cycles And Weight Effects On Emissions And Development Of Predictive Emissions Models For Heavy Duty Trucks, Kuntal A. Vora

Graduate Theses, Dissertations, and Problem Reports (ETD)

NOX and PM emissions data from the 5--mode CARB HHDDT Schedule, UDDS, and AC5080 were reviewed, with reference to each other. Next, two-dimensional correlations were used to predict the emissions rate on one cycle from the rates of two other cycles. The two-dimensional analysis yielded better correlations.;The emission of NOX, CO, CO2, HC and PM were analyzed with respect to weight. Vehicles did not follow linear NOX emissions trends over large weight ranges. Fleet-wide emissions for HHDDT could be predicted.;Lastly, a method was proposed to predict emissions based on the vehicle's emissions history from other cycles and on the properties …

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