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2009

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Real-Time Implementation Of A Statcom On A Wind Farm Equipped With Doubly Fed Induction Generators, Wei Qiao, Ganesh Kumar Venayagamoorthy, Ronald G. Harley Jan 2009

Real-Time Implementation Of A Statcom On A Wind Farm Equipped With Doubly Fed Induction Generators, Wei Qiao, Ganesh Kumar Venayagamoorthy, Ronald G. Harley

Department of Electrical and Computer Engineering: Faculty Publications

Voltage stability is a key issue to achieve the uninterrupted operation of wind farms equipped with doubly fed induction generators (DFIGs) during grid faults. This paper investigates the application of a static synchronous compensator (STATCOM) to assist with the uninterrupted operation of a wind turbine driving a DFIG, which is connected to a power network, during grid faults. The control schemes of the DFIG rotor- and grid-side converters and the STATCOM are suitably designed and coordinated. The system is implemented in real-time on a Real Time Digital Simulator. Results show that the STATCOM improves the transient voltage stability and therefore …

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Enhanced Chemical Vapor Deposition Of Diamond By Wavelength-Matched Vibrational Excitations Of Ethylene Molecules Using Tunable Co2 Laser Irradiation, Hao Ling, Q. Xie, T. Gebre, X. K. Shen, Yongfeng Lu Jan 2009

Enhanced Chemical Vapor Deposition Of Diamond By Wavelength-Matched Vibrational Excitations Of Ethylene Molecules Using Tunable Co2 Laser Irradiation, Hao Ling, Q. Xie, T. Gebre, X. K. Shen, Yongfeng Lu

Department of Electrical and Computer Engineering: Faculty Publications

Wavelength-matched vibrational excitations of ethylene (C2H4 molecules using a tunable carbon dioxide (CO2) laser were employed to significantly enhance the chemical vapor deposition (CVD) of diamond in open air using a precursor gas mixture of C2H4, acetylene (C2H2), and oxygen (O2). The CH2-wag vibration mode (v7) of the C2H4 molecules was selected to achieve the resonant excitation in the CVD process. Both laser wavelengths of 10.591 and 10.532 μm were applied to the CVD processes to compare …

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Paths To Knowledge As A Foundational Course In An Honors Program, Mark Vitha, Arthur Sanders, Colin Cairns, David Skidmore, Clive Elliot, William Lewis Jan 2009

Paths To Knowledge As A Foundational Course In An Honors Program, Mark Vitha, Arthur Sanders, Colin Cairns, David Skidmore, Clive Elliot, William Lewis

Honors in Practice Online Archive

In this article we describe an honors course titled “Paths to Knowledge,” which was created to provide students with an understanding of the ways different disciplines create and evaluate knowledge. This is the only specific course within our honors curriculum that is required of all honors students. After seeing it evolve over several years, multiple instructors, and a variety of approaches to the theme, we believe that Paths to Knowledge may be a good model for a foundational course within an honors program.

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The Role Of Peer Leaders In An Honors Freshman Experience Course, Melissa Johnson Jan 2009

The Role Of Peer Leaders In An Honors Freshman Experience Course, Melissa Johnson

Honors in Practice Online Archive

The purpose of this paper is to describe the role peer leaders play in Introduction to Honors Professional Development, a 1-credit, graded, honors course for first-year students at the University of Florida. Peer leaders are experienced undergraduate students who co-instruct the course along with an honors advisor. While the specific roles of peer leaders may vary from section to section, in general all peer leaders are expected to be advisors, resources, and role models to first-year students.

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Building An Honors Development Board, Scott Carnicom, Philip Mathis Jan 2009

Building An Honors Development Board, Scott Carnicom, Philip Mathis

Honors in Practice Online Archive

Development has a long history in American higher education. The first institutions of higher education founded in the United States were private and relied heavily on donations of money or land (Brittingham & Pezzullo, 1990). Public schools, which once enjoyed a period of relatively generous government funding, must also now vie for development dollars in an increasingly competitive market. The organized development efforts of both private and public colleges and universities have evolved and expanded over the years, giving rise to centralized development offices and trained, professional development officers. However, many academic leaders outside the development office, including honors directors …

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Gordonius Rhinocerillus, A New Genus And Species Of Colombian Aphodiini (Coleoptera: Scarabaeidae: Aphodiinae), Paul E. Skelley, Marco Dellacasa, Giovanni Dellacasa Jan 2009

Gordonius Rhinocerillus, A New Genus And Species Of Colombian Aphodiini (Coleoptera: Scarabaeidae: Aphodiinae), Paul E. Skelley, Marco Dellacasa, Giovanni Dellacasa

Insecta Mundi

Gordonius rhinocerillus, a new genus and new species of Colombian Aphodiini is described and figured. It is the only known member of New World Aphodiinae where the male has a prominent horn on the head.

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Real-Time Depth Sectioning: Isolating The Effect Of Stress On Structure Development In Pressure-Driven Flow, Lucia Fernandez-Ballester, Derek W. Thurman, Julia A Kornfield Jan 2009

Real-Time Depth Sectioning: Isolating The Effect Of Stress On Structure Development In Pressure-Driven Flow, Lucia Fernandez-Ballester, Derek W. Thurman, Julia A Kornfield

Department of Engineering Mechanics: Faculty Publications

Transient structure development at a specific distance from the channel wall in a pressure-driven flow is obtained from a set of real-time measurements that integrate contributions throughout the thickness of a rectangular channel. This “depth sectioning method” retains the advantages of pressure-driven flow while revealing flow-induced structures as a function of stress. The method is illustrated by applying it to isothermal shear-induced crystallization of an isotactic polypropylene using both synchrotron x-ray scattering and optical retardance. Real-time, depth-resolved information about the development of oriented precursors reveals features that cannot be extracted from ex-situ observation of the final morphology and that are …

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Achievable Rates And Resource Allocation Strategies For Imperfectly Known Fading Relay Channels, Junwei Zhang, M. Cenk Gursoy Jan 2009

Achievable Rates And Resource Allocation Strategies For Imperfectly Known Fading Relay Channels, Junwei Zhang, M. Cenk Gursoy

Department of Electrical and Computer Engineering: Faculty Publications

Achievable rates and resource allocation strategies for imperfectly known fading relay channels are studied. It is assumed that communication starts with the network training phase in which the receivers estimate the fading coefficients. Achievable rate expressions for amplify-and-forward and decode-and-forward relaying schemes with different degrees of cooperation are obtained. We identify efficient strategies in three resource allocation problems: (1) power allocation between data and training symbols, (2) time/bandwidth allocation to the relay, and (3) power allocation between the source and relay in the presence of total power constraints. It is noted that unless the source-relay channel quality is high, cooperation …

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Ecology Of Small Mammals, Vegetation, And Avian Nest Survival On Private Rangelands In Nebraska, Kent A. Fricke, Silka L.F. Kempema, Larkin A. Powell Jan 2009

Ecology Of Small Mammals, Vegetation, And Avian Nest Survival On Private Rangelands In Nebraska, Kent A. Fricke, Silka L.F. Kempema, Larkin A. Powell

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Small mammals can be an important bioindicator of ecosystem health. They serve as both predator and prey in many ecosystems. By means of live trapping and nest monitoring, we studied the ecological relationships between small mammals, avian nest survival, and vegetation composition and structure on six private ranches in the Sandhills of Nebraska during 2004. Our study documented six species (132 captures) of small mammals, and we monitored 139 bird nests. Pastures with high small-mammal populations did not suffer higher nest mortality, indicating that small-mammal abundance does not predict avian productivity. We found several vegetation characteristics that influenced small-mammal abundance …

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Causes And Impacts Of Salinization In The Lower Pecos River, Christopher W. Hoagstrom Jan 2009

Causes And Impacts Of Salinization In The Lower Pecos River, Christopher W. Hoagstrom

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

River salinization is a byproduct of water resource development that results from cumulative impacts of flow-regime modifications and crop irrigation. However, historical salinization in the Lower Pecos River is often attributed to natural, high-salinity groundwater. Here, evidence from literature and U.S. Geological Survey gaging stations is reviewed to summarize historical changes associated with water development that potentially contributed to Pecos River salinization. A suite of hydrological changes, initiated in the 1880s, likely contributed to streamflow salinization: (1) reduced flood frequency and magnitude, (2) diminished streamflow, (3) increased evapotranspiration, and (4) increased prevalence of natural, high-salinity groundwater. Salinization is presently highest …

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Near-Surface Soil-Water Monitoring For Water Resources Management On A Wide-Area Basis In The Great Plains, K. G. Hubbard, J. You, V. Sridhar, E. Hunt, S. Korner, G. Roebke Jan 2009

Near-Surface Soil-Water Monitoring For Water Resources Management On A Wide-Area Basis In The Great Plains, K. G. Hubbard, J. You, V. Sridhar, E. Hunt, S. Korner, G. Roebke

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

In the Great Plains, soil water is one of the most critical factors related to sustainable production on cropland and rangeland, while the need for better water management grows in the face of increasing water demand during dry years. Soil water is also an important factor related to flood modeling and quantification of the boundary conditions in atmospheric models such as global circulation models. The objectives of this study were to install a wide-area automated soil-monitoring network, determine effective calibration procedures, and develop new products to illustrate the status of soil water. Soil-monitoring sensors were established at 51 sites across …

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Defeating The Developer's Dilemma: An Online Tool For Individual Consultations, Michele Dipietro, Susan A. Ambrose, Michael Bridges, Anne Fay, Marsha C. Lovett, Mari Kamala Norman Jan 2009

Defeating The Developer's Dilemma: An Online Tool For Individual Consultations, Michele Dipietro, Susan A. Ambrose, Michael Bridges, Anne Fay, Marsha C. Lovett, Mari Kamala Norman

To Improve the Academy: A Journal of Educational Development

This chapter introduces an online consultation tool that helps resolve the tension that developers often experience in consultations between offering quick fixes and providing in-depth but time-consuming conceptual understanding. The tool that the Eberly Center for Teaching Excellence has developed provides instructors with concrete teaching strategies to address common teaching problems, while also educating them about the pedagogical principles informing those strategies. The tool can be used to enhance traditional face-to-face consultations or, by itself, to reach a wider faculty audience, including adjunct and off site faculty.

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Learning–Centered Evaluation Of Teaching, Trav D. Johnson Jan 2009

Learning–Centered Evaluation Of Teaching, Trav D. Johnson

To Improve the Academy: A Journal of Educational Development

Over the past decade, institutions of higher education have placed increased emphasis on promoting student learning. This emphasis has influenced thinking about teaching, course design, and faculty development, but it has had little effect on the evaluation of teaching. In other words, the evaluation of teaching remains focused on instruction (that is, teacher performance and course characteristics) rather than on student learning. Learning-centered evaluation of teaching provides a viable way to emphasize student learning in the evaluation process. This approach uses principles of program evaluation and emphasizes learning goals, learning activities, learning assessments, and learning outcomes in the evaluation of …

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Preparing Advocates For Faculty Development: Expanding The Meaning Of “Growing Our Own”, Deborah S. Meizlish, Mary C. Wright Jan 2009

Preparing Advocates For Faculty Development: Expanding The Meaning Of “Growing Our Own”, Deborah S. Meizlish, Mary C. Wright

To Improve the Academy: A Journal of Educational Development

Discussions about preparing newcomers for faculty development focus almost exclusively on the staffing needs of teaching centers. Unfortunately, this emphasis significantly narrows what it means to prepare people for the field. Instead, we suggest that successful preparation has two elements: preparation of talented individuals for formal positions in the field and preparation of knowledgeable advocates or allies. As evidence, we present results from a survey of our center’s graduate teaching consultants, documenting how their work shaped their future connections to faculty development. Our results challenge centers to consider how their programming can “grow” both professionals in and advocates for faculty …

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Meeting New Faculty At The Intersection: Personal And Professional Support Points The Way, Ann Riley Jan 2009

Meeting New Faculty At The Intersection: Personal And Professional Support Points The Way, Ann Riley

To Improve the Academy: A Journal of Educational Development

Faculty developers can play a significant role in increasing the retention of new faculty. This chapter presents a study conducted at a public research university that reveals that first-year faculty need personal, relational, and professional support. However, the importance of each type of support shifts during this first year, suggesting that faculty development efforts aimed toward new faculty should adjust accordingly. This study uses a sequential mixed-method design and is grounded in adult development theory, which views new faculty as adult learners in a career-life transition and faculty developers as adult educators.

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Teaching Learning Processes—To Students And Teachers, Pamela E. Barnett, Linda C. Hodges Jan 2009

Teaching Learning Processes—To Students And Teachers, Pamela E. Barnett, Linda C. Hodges

To Improve the Academy: A Journal of Educational Development

Our teaching and learning center serves faculty and graduate students as teachers and undergraduates as learners. Here we share the experiences of graduate student facilitators whom we trained to lead problem-solving skills workshops for undergraduates. Our aim was to help these graduate students see themselves as teachers of disciplinary thinking as much as of disciplinary content. However, they also began to reexamine their teaching beliefs and practices, recognize and respond to the needs of novice learners, and become more conscious of the demands of learning their disciplines. We offer this program as a model for developing future facuity.

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Simulation Of Coherent Radar Imaging Using Continuous Wave Noise Radar, Jing Xu, Michael Hoffman, B.L. Cheong, R.D. Palmer Jan 2009

Simulation Of Coherent Radar Imaging Using Continuous Wave Noise Radar, Jing Xu, Michael Hoffman, B.L. Cheong, R.D. Palmer

Department of Electrical and Computer Engineering: Faculty Publications

A computationally simple cross-correlation model for multiple backscattering from a continuous wave (CW) noise radar is developed and verified with theoretical analysis and brute-force time-domain simulations. Based on this cross-correlation model, a modification of an existing numerical method originally developed by Holdsworth and Reid for spaced antenna (SA) pulsed radar is used to simulate the estimated cross correlation corresponding to atmospheric backscattering using a coherent CW noise radar. Subse- quently, coherent radar imaging (CRI) processing comparisons between the CW noise radar and a con- ventional pulsed radar are presented that verify the potential of CW noise radar for atmospheric imaging.

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Review Of "So This Is The World & Here I Am In It," By Di Brandt, Tanis Macdonald Jan 2009

Review Of "So This Is The World & Here I Am In It," By Di Brandt, Tanis Macdonald

Great Plains Quarterly (through 2013)

When Di Brandt speaks about poetryand its political dimensions, people listen, sometimes with their mouths agape, at her audacity and at her long looping ecoerotic sentences. Brandt's literary, ecocritical, and philosophical stances are well represented in So this is the world, as are her poetics, emphasized here through her reading of the prairie as both aesthetic and consciousness, a local that has much to teach us about the global. The collection is bracketed by two luminous essays-"This land that I love, this wide, wide prairie" and the title essay, "So this is the world and here I am in …

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Deathscapes, Topocide, Domicide The Plains In Contemporary Print Media, Christina E. Dando Jan 2009

Deathscapes, Topocide, Domicide The Plains In Contemporary Print Media, Christina E. Dando

Great Plains Quarterly (through 2013)

The American print media are a powerful mechanism for communicating information about places and environment to the American public. When it comes to a landscape such as the Great Plains, experienced by many Americans as either sleep-through land in a car or flyover land in a plane, the print media may be their only real source of information about this landscape, excluding 30 second soundbites which occasionally appear in electronic media. Often perceived as monotonous or dull, the Plains has been overlaid with powerful images, of garden or desert, of Dust Bowl or Buffalo Commons. But recent media coverage of …

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Review Of A Terrible Glory: Custer And The Little Bighorn-The Last Great Battle Of The American West By James Donovan; The Day The World Ended At Little Bighorn: A Lakota History By Joseph M. Marshall; Custerology: The Enduring Legacy Of The Indian Wars And George Armstrong Custer By Michael A. Elliott, Robert W. Larson Jan 2009

Review Of A Terrible Glory: Custer And The Little Bighorn-The Last Great Battle Of The American West By James Donovan; The Day The World Ended At Little Bighorn: A Lakota History By Joseph M. Marshall; Custerology: The Enduring Legacy Of The Indian Wars And George Armstrong Custer By Michael A. Elliott, Robert W. Larson

Great Plains Quarterly (through 2013)

During the last few years a number of books on the Indian wars fought in the upper Great Plains have been published. The three under review here are among the best. Donovan's A Terrible Glory, the most ambitious, is a study of epic proportions involving the life of George Armstrong Custer and his military career, starting with his rather humble birth in Ohio and ending with his death at the Little Bighorn. Donovan does more than just focus on Custer and his tumultuous years with the U.S. Army, however. His first chapter, for instance, deals with the long and …

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Ethical Guidelines For Educational Developers Jan 2009

Ethical Guidelines For Educational Developers

To Improve the Academy: A Journal of Educational Development

Ethical guidelines for educational developers, prepared by Mintz, Smith, and Warren, January 1999. Revised March 1999, September 1999, and March 2000.

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Magicians Of The Golden State: The Csu Center Director Disappearing Acts, Cynthia Desrochers Jan 2009

Magicians Of The Golden State: The Csu Center Director Disappearing Acts, Cynthia Desrochers

To Improve the Academy: A Journal of Educational Development

The California State University (CSU) Teaching and Learning Center directors perform daily feats of magic, often culminating in one particularly dramatic trick at the end of the academic year—their own disappearing acts. This chapter traces the history of the center director position in the CSU system, reports where directors go when they leave the position after only a few years, and proposes how frequent turnover might be reversed through organizational factors aimed at promoting retention of these Magicians of the Golden State.

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Cultural Survival And The Omaha Way Eunice Woodhull Stabler's Legacy Of Preservation On The Twentieth,Century Plains, Elaine M. Nelson Jan 2009

Cultural Survival And The Omaha Way Eunice Woodhull Stabler's Legacy Of Preservation On The Twentieth,Century Plains, Elaine M. Nelson

Great Plains Quarterly (through 2013)

In the summer of 2004 I pulled into the rock and gravel driveway of a small blue home in Walthill, Nebraska, a community in the northern part of the Omaha Indian reservation. Feeling nervous about the large and unavoidable sign reading "BEWARE OF DOG," I knocked on the screen door. I was welcomed with wild barking from inside before I heard a man's voice yell, "Rambo! Hush up! Rambo, get down!" Startled, I nearly dropped my books and tape recorder. The door swung open. I expected to be faced with a Doberman/German shepherd/ pit bull mix; instead, I looked down …

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A Prairie Parable The 1933 Bates Tragedy, Bill Walser Jan 2009

A Prairie Parable The 1933 Bates Tragedy, Bill Walser

Great Plains Quarterly (through 2013)

It was one of the more harrowing episodes of the Great Depression. Ted and Rose Bates had failed in business in Glidden, Saskatchewan, in 1932 and again on the west coast of Canada the following year. When they were subsequently turned down for relief assistance twice, first in Vancouver and then in Saskatoon, because they did not meet the local residency requirements, the couple decided to end their lives in a remote rural schoolyard, taking their eightyear- old son, Jackie, with them rather than face the shame of returning home to Glidden as a relief case. But it was only …

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Comparing Strength, Speed And Power In Division Iaa Football Players, Joshua R. Cue Jan 2009

Comparing Strength, Speed And Power In Division Iaa Football Players, Joshua R. Cue

Graduate Research Papers

No abstract provided.

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Eating Disorders In Adolescent Females With Diabetes: A Review Of The Literature, Kristy Lynn Herbrandson Jan 2009

Eating Disorders In Adolescent Females With Diabetes: A Review Of The Literature, Kristy Lynn Herbrandson

Graduate Research Papers

No abstract provided.

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Exercise Benefits For People With Multiple Sclerosis, Ethan Tews Jan 2009

Exercise Benefits For People With Multiple Sclerosis, Ethan Tews

Graduate Research Papers

No abstract provided.

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Curriculum Development Project: Water Quality Unit, Keith Weber Jan 2009

Curriculum Development Project: Water Quality Unit, Keith Weber

Graduate Research Papers

As a cumulation of my studies and to satisfy the non-thesis option for my graduate program at the University of Northern Iowa (UNI), I designed this Water Quality Unit to be used for 9th and 10th grade students. It uses both learning cycles and a constructivist approach to satisfy Dubuque Community School District and Iowa Core Curriculum Standards. Each learning cycle applies the 3-E approach [Explore, Explain and Extend]. The unit contains seven separate learning cycles and ends with a final project in which students analyze the runoff from their school's watershed for various pollutants to determine what steps can …

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Service-Learning Is… How Faculty Explain Their Practice, Kerryann O’Meara, Elizabeth K. Niehaus Jan 2009

Service-Learning Is… How Faculty Explain Their Practice, Kerryann O’Meara, Elizabeth K. Niehaus

Department of Educational Administration: Faculty Publications

Many researchers have explored faculty engagement in service-learning. However, scholarship rarely considers ways in which the discourses used by faculty to describe service-learning—the stories they tell about what it is they are doing and why—construct images of subject positions, problems, and solutions that inform our beliefs about service-learning and our practice. The purpose of this study was to understand the dominant discourses used by faculty to explain service-learning. The nomination files of 109 exemplary faculty nominated for the Thomas Ehrlich Award were analyzed. Findings indicate that faculty use four dominant discourses regarding the purposes and significance of service-learning: (a) a …

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A Working Conference On Students With Disabilities In Stem Coursework And Careers, Audrey C. Rule, Greg P. Stefanich, Charlotte W. Haselhuhn, Belinda Peiffer Jan 2009

A Working Conference On Students With Disabilities In Stem Coursework And Careers, Audrey C. Rule, Greg P. Stefanich, Charlotte W. Haselhuhn, Belinda Peiffer

Faculty Publications

Background: Few teachers and special education specialists are aware of the materials and resources available to support science; technology; engineering; and mathematics instruction for the scattered and isolated 3000 students with sensory and motor disabilities in Iowa's K-12 schools. Additionally; faculty at many community colleges and regent institutions are not aware of possible accommodations for their students with disabilities who have interests in pursuing STEM careers. Unfortunately; this often leads to discouragement and lack of success for students with motor or sensory disabilities. This conference brings together experts and conference attendees involved in instruction; support; or transitions for these students …

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