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The Sensitivity Of Convective Initiation To The Lapse Rate Of The Active Cloud-Bearing Layer, Adam L. Houston, Dev Niyogi

Department of Earth and Atmospheric Sciences: Faculty Publications

Numerical experiments are conducted using an idealized cloud-resolving model to explore the sensitivity of deep convective initiation (DCI) to the lapse rate of the active cloud-bearing layer [ACBL; the atmospheric layer above the level of free convection (LFC)]. Clouds are initiated using a new technique that involves a preexisting airmass boundary initialized such that the (unrealistic) adjustment of the model state variables to the imposed boundary is disassociated from the simulation of convection. Reference state environments used in the experiment suite have identical mixed layer values of convective inhibition, CAPE, and LFC as well as identical profiles of relative humidity …

Observational Analysis Of The 27 May 1997 Central Texas Tornadic Event. Part Ii: Tornadoes, Adam L. Houston, Robert B. Wilhelmson

Department of Earth and Atmospheric Sciences: Faculty Publications

The 27 May 1997 central Texas tornadic event has been investigated in a two-part observational study. As demonstrated in Part I, the 1D environment associated with this event was unfavorable for significant (≥F2) tornadoes. Yet, the storm complex produced at least six significant tornadoes, including one rated F5 (the Jarrell, Texas, tornado). The purpose of this article is to examine the spatiotemporal interrelationships between tornadoes, preexisting boundaries, antecedent low-level mesocyclones, convective cells, and midlevel mesocyclones. It is shown that each of the six observed tornadoes that produced greater than F0 damage formed along the storm-generated gust front, not along preexisting …

Observational Analysis Of The 27 May 1997 Central Texas Tornadic Event. Part I: Prestorm Environment And Storm Maintenance/Propagation, Adam L. Houston, Robert B. Wilhelmson

Department of Earth and Atmospheric Sciences: Faculty Publications

A detailed analysis of the 27 May 1997 central Texas tornadic storm complex is undertaken in an attempt to document the prestorm environment and identify the roles played by preexisting boundaries on storm maintenance/propagation and rotation. Analysis is carried out using a broad suite of synoptic and subsynoptic data but focuses on the level-II and -III Weather Surveillance Radar-1988 Doppler (WSR-88D) data from three Texas radars. The 27 May 1997 event was characterized by a back-building (propagation against the mean flow) storm complex that produced at least 12 tornadoes including the F5 Jarrell, Texas, tornado. Furthermore, five of the eight …

The Spillikin (Vol. 24), Valparaiso University

The Spillikin - The Christ College Newsletter

No abstract provided.

New College Class Of 2007 Commencement Program, New College Of Florida

Office of the Registrar Collection

Eight page program detailing the order of events for commencement at the New College of Florida, including location and dates of events, speakers' names and subjects.

Blending Techniques For Underwater Photomosaics, Fan Gu

Master's Theses and Capstones

The creation of consistent underwater photomosaics is typically hampered by local misalignments and inhomogeneous illumination of the image frames, which introduce visible seams that complicate post processing of the mosaics for object recognition and shape extraction. In this thesis, methods are proposed to improve blending techniques for underwater photomosaics and the results are compared with traditional methods. Five specific techniques drawn from various areas of image processing, computer vision, and computer graphics have been tested: illumination correction based on the median mosaic, thin plate spline warping, perspective warping, graph-cut applied in the gradient domain and in the wavelet domain. A …

Digital Seismo-Acoustic Signal Processing Aboard A Wireless Sensor Array For Volcano Monitoring, Omar E. Marcillo

Master's Theses and Capstones

This work describes the design and implementation of a low cost wireless sensor array utilizing digital processing to conduct autonomous real-time seismo-acoustic signal analysis of earthquakes at actively erupting volcanoes. The array consists of (1) three sensor nodes, which comprise seismic and acoustic sensors, (2) a GPS-based time synchronization node, and (3) a base receiver node, which features a communication channel for long distance telemetry. These nodes are based on the Moteiv TMote Sky wireless platform. The signal analysis accomplishes Real-time Seismic-Amplitude Measurement (RSAM) and Seismic Spectral-Amplitude Measurement (SSAM) calculations, and the extraction of triggered arrival time, event duration, intensity, …

2007-2008 Bgsu Catalog, Bowling Green State University

Course Catalogs

No abstract provided.

Insights- May 2007, University Relations Staff

Insights

No abstract provided.

Insights- September 2007, University Relations Staff

Insights

No abstract provided.

Focus- Winter 2007, Newsletter Staff

Focus on Student Affairs

No abstract provided.

Cover And Contents

Turkish Journal of Zoology

No abstract provided.

Identification Of A Time-Delayed Process Model Using An Overparameterisation Method, John Roe, Ruiyao Gao, Aidan O'Dwyer

Conference papers

An extensive literature exists on the estimation of the model parameters of time-delayed processes. This paper briefly reviews the main overparameterisation methods for the Single-Input, Single Output (SISO) and Multi-Input, Multi-Output (MIMO) model parameter (and time delay) estimation problem. Subsequently, two algorithms, and their modifications, are discussed, and their performances are assessed in simulation. Results indicate that both the algorithms can suitably identify the model parameters, including the time delay. The third author has taught the method successfully to students taking advanced level control courses at DIT for a number of years; these experiences will be briefly reported. The paper …

Experiences Of Assessment Using Multiple Choice Questions On A First Year Engineering Module In Electrical Engineering, Aidan O'Dwyer

Conference papers

This contribution will report on, and evaluate, the use of multiple-choice questions, in both continuous assessment and terminal examination modes, on a first year module in electrical engineering at Dublin Institute of Technology. The author’s experiences are that multiple-choice questions tend to be student friendly (e.g. given a choice in a terminal examination, students will opt to attempt the questions with multiple choice parts). The author has used the assessment method over three academic years, and some assessment data is reported and analysed in the contribution. The pedagogical approach is explicitly pragmatic.

Nepal's Community Forestry Program: Another Example Of The Tragedy Of The Commons Or A Realistic Means Of Balancing Indigenous Needs With Forestry Conservation?, Kirsten Westerland

Colorado Environmental Law Journal

No abstract provided.

The Rhetoric Of Picasso, Matthew R. Sharp

Theses and Dissertations

Pablo Picasso was arguably the most famous and controversial artist of the twentieth century, and some of his most famous pieces were created during the Spanish Civil War (1936-1939) in response to the horrible atrocities taking place in his homeland. "The Rhetoric of Picasso" by Matthew R. Sharp, filed December 2007, examines some of these works—including paintings such as Guernica and Weeping Woman —and theorizes their rhetorical force, using speech act theory as the theoretical lens. Based on common images and themes in Picasso's symbolism, it is determined that Picasso's works during the Spanish Civil War are expressive speech acts …

The Vascular Flora Of Saline County, Arkansas, Charles Theodore Witsell

Theses and Dissertations

The vascular flora of Saline County, Arkansas was collected from March 2002 to November 2007 resulting in a total of 1,510 taxa (52% of the known flora of Arkansas), representing 165 families, 617 genera, and 1,457 species. Of these, 241 (15.9%) are non-native and 99 (6.6%) are of state conservation concern. Of these, 20 taxa (1.3%) are considered to be of global conservation concern (G1-G3). Twenty-seven habitats and plant communities are qualitatively described from the county. Of these, shale barrens, igneous glades, pine flatwoods, swamp lakes and floatant marshes, channel scar depression ponds, high-gradient stream channels, and bluffs and talus …

A Browser-Side Solution For Detection And Prevention Of Cross-Site Request Forgery Attacks, Mary C. Henthorn

Theses and Dissertations

The security of web-based applications concerns everyone who conducts business online. Cross-site request forgeries (CSRF) subject users, as well as applications, to attack. Cloaked by the standardized request and response interchange between browsers and web-based applications, an attacker can employ the browser as an agent to slip data into the transaction. CSRF exploits ride on session authentication and authorization, stealthily bypassing the security measures intended to form bonds of trust between the user and the application. Until CSRF protection is incorporated in all web-based applications, wary users may look for client-side protection. This thesis offers an original Firefox browser extension …

In-Situ And Simultaneous Measurements Of Size And Charge Distributions Of Dust On Mars: Instrumentation And Analysis, Praveen Kumar Srirama

Theses and Dissertations

Martian dust characterization is important for minimizing the effects of abrasion, adhesion, corrosion, and damage to mission hardware, and also to reduce the effect on human health during future robotic and human exploratory missions. Characterizing the particle size and charge on Mars dust will help in the development of techniques for dust mitigation. Presently there is no miniature instrument which is capable of in-situ and real time measurements on Mars. In order to simultaneously analyze the particle size and charge of Mars dust, a Dust Particle Analyzer (DPA) has been developed and tested which is based on a Laser Doppler …

Model Estimation Of Land-Use Effects On Water Levels Of Northern Prairie Wetlands, Richard A. Voldseth, W.Carter Johnson, Tagir Gilmanov, Glenn R. Guntenspergen, Bruce V. Millett

Natural Resource Management Faculty Publications

Wetlands of the Prairie Pothole Region exist in a matrix of grassland dominated by intensive pastoral and cultivation agriculture. Recent conservation management has emphasized the conversion of cultivated farmland and degraded pastures to intact grassland to improve upland nesting habitat. The consequences of changes in land-use cover that alter watershed processes have not been evaluated relative to their effect on the water budgets and vegetation dynamics of associated wetlands. We simulated the effect of upland agricultural practices on the water budget and vegetation of a semipermanent prairie wetland by modifying a previously published mathematical model (WETSIM). Watershed cover/landuse practices were …

Cls Wasn't Killed By A Question, John Henry Schlegel

Journal Articles

No abstract provided.

Dynamic Gis, Jochen Albrecht

Publications and Research

No abstract provided.

Gender Differences In Perceived Value Of A Program To Promote Academic And Career Success For Students With Disabilities, Sheryl Burgstahler, Chuan Chang

Journal of Science Education for Students with Disabilities

This article reports the results of a retrospective survey of participants in an exemplary transition program for college-bound youth with disabilities. The study compared how male and female participants perceived changes in themselves in the areas of academic skills, social skills, Internet skills, levels of preparation for college and employment, levels of awareness of career options, and personal characteristics during the course of their participation; values of program components; and impact of program participation on their lives. In accordance with conventional gender stereotypes, significantly more boys indicated initial interests and/or career goals in the fields of science, technology, engineering, and …

Video-Tutorials For Tech Sign Vocabulary In Astronomy, Judy Egelston-Dodd, Simon Ting

Journal of Science Education for Students with Disabilities

This article describes the mediated American Sing Language (ASL) presentation of technical vocabulary and definitions within the context of a web-based astronomy course for first year students at the National Technical Institute for the Deaf at Rochester Institute of Technology (Rochester, NY). Deaf students showed achievement gains with fewer astronomy misconceptions. Also, student ratings of instructor ASL skill, as reported on the student rating system, were higher after students used the ASL vocabulary videos.

Reading Strategies For Struggling Readers In The Middle School, Kathleen Claeys

Graduate Research Papers

This literature review focuses on several strategies good readers use to understand and interpret different types of text, such as fiction, non-fiction, and expository. These strategies are ones that struggling readers are not aware of, or these readers do not have the knowledge and experience to utilize the strategies. Teachers need to provide direct instruction of these strategies, generate models of what they look like, demonstrate what the thought process is behind the strategies, and offer students practice in using them with the idea that students will add them to their repertoire of strategies and use them throughout the learning …

Use Of Learning Styles In The Selection Of Instructional Strategies : Does Pedagogy Lead To Practice?, Roger E. Baker

Graduate Research Papers

Much has been written about the importance of learning styles in instructional design. Learning styles can be measured by the use of personality profiles such as the Myers-Briggs Type Indicator (MBTI). Learning styles can also be measured by Learning Style Inventories and defined by cognitive theory such as Gardner's multiple intelligences. This literature review explores the different approaches to the study of learning styles and the practical use of learning style indicators as a tool for selecting instructional strategies.

Many challenges exist in designing instruction to the personal level including costs, time, and instructor limits. Philosophical questions on the benefits …

Pedagogical Agents As Social Models To Influence Learner Attitudes, Yanghee Kim, A. Baylor

Instructional Technology and Learning Sciences Faculty Publications

Based on social-cognitive theory, we describe the role of pedagogical agents as “social models.” In several experimental studies we have found that pedagogical agents as social models can effectively persuade and motivate learners. We briefly describe two on-going projects where agents as social models are employed to enhance young women’s motivation and attitudes toward math and engineering.

Text Categorization For Aligning Educational Standards, O. Yilmazel, N. Balasubramanian, S. C. Harwell, J. Bailey, Anne R. Diekama, E. D. Liddy

Instructional Technology and Learning Sciences Faculty Publications

Standard alignment (where standards describing similar concepts are correlated) is a necessary task in providing full access to educational resources. Manual alignment is time consuming and expensive. We propose an automatic alignment system, using machine learning techniques utilizing natural language processing. In this paper we discuss our experiments on text categorization for automatic alignment. We explore the role of relevant vocabulary sets in automatic alignment.

Desirable Characteristics Of Learning Companions, Yanghee Kim

Instructional Technology and Learning Sciences Faculty Publications

This study investigated the desirable characteristics of anthropomorphized learning-companion agents for college students. First, interviews with six undergraduates explored their concepts of desirable learning companions. The interviews yielded agent competency, agent personality, and interaction control. Next, a controlled experiment examined whether learner competency (strong vs. weak) would relate directly to agent competency (high vs. low) and to interaction control (agent-control vs. learner-control). The dependent measures included learners' perceptions of agent functionality, their self-efficacy beliefs in the task, and their learning. The results indicated that academically strong students perceived the high-competent agent higher than the lowcompetent agent and showed higher self-efficacy …

Designing Educational Games For Activity-Goal Alignment, Brett E. Shelton

Instructional Technology and Learning Sciences Faculty Publications

What indeed, can we expect from our newest trend in education, implementing moving pictures and conversations with instruction through simulation games? Lewis Carroll's familiar narratives Alice's Adventures in Wonderland and Alice Through the Looking Glass provide helpful imagery for many of the queries, explorations and assumptions we currently make about this latest Wonderland of academia. So what are the goals for the designers and researchers of educational games, or perhaps more importantly, what should be the goals?