Digital Commons Network^™

Central Florida Future, Vol. 38 No. 11, September 22, 2005

Central Florida Future

Protesters heading to capital's doorstep: Campus Peace Action joining others for anti-war march in Washington D.C.; Students inspired by studies overseas; Marching Band Celebrates 25th Anniversary; Neglected Knightcast staff receives a permanent home; Editor's suicide leaves emotional void at student paper: Spinnaker staff members reflect on their lost leader.

Sandspur, Vol 112, No 02, September 02, 2005, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

Central Florida Future, Vol. 38 No. 04, August 29, 2005

Central Florida Future

Speaker's resignation leads to shakeup within senate ranks: Former pro temp White moves into new position in wake of Merolle's departure for the real world; Dyer headlines new marketing push at downtown pep rally: Football reaching out to community with hopes of attracting more fans; Knighto's ride pimped by student automotive club; Is God a fad?: To believe or to not believe? Spurred to the front of public discussion in the wake of the 2004 presidential selection religion has been the media's "it" topic for several years. But is this revival real? Or is faith just a fad?

Sandspur, Vol 112, No 01, August 16, 2005, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

The Learning Marketspace, July 2005, Bob Heterick, Carol Twigg

The Learning MarketSpace (4/03 - 4/14)

No abstract provided.

Literature Review Of The Impact And Need For Attic Ventilation In Florida Homes, Florida Solar Energy Center, Danny Parker

FSEC Energy Research Center®

The Florida Department of Community Affairs (DCA) is seeking to examine the impact and necessity of residential attic ventilation in Florida homes. Here, we provide technical support by examining existing data sources on the impacts of attic ventilation both on cooling and heating energy use as well as to attic and home moisture levels. In particular we evaluate the issues with sealed attic construction where the attic is unvented and expanded foam insulation is applied directly to the underside of the roof decking.

We also report the data from Florida Solar Energy Center (FSEC) instrumented facilities to add unique information …

Method Of Reconstructing Images For Spiral And Non-Spiral Computer Tomography [Div], Alexander Katsevich

UCF Patents

General scheme processes and systems for constructing algorithms for reconstructing images of objects that have been scanned in a spiral or non-spiral fashions with detectors. Application of the scheme requires finding of a weight function, which would lead to the required reconstruction algorithm. This general scheme can use a C-arm scan with the closed x-ray source trajectory and gives a new, theoretically exact and efficient (i.e., with the convolution-based FBP structure) reconstruction algorithm. The invention can also utilize the algorithms disclosed in an earlier application U.S. patent application Ser. No. 10/143,160 filed May 10, 2002, entitled: Exact Filtered Back Projection …

University Of Central Florida Commencement, May 5, 6 & 7, 2005, University Of Central Florida

Commencement Programs

No abstract provided.

University Of Central Florida Undergraduate Catalog, 2005 - 2006, University Of Central Florida

UCF Catalogs

No abstract provided.

University Of Central Florida Graduate Catalog, 2005 - 2006, University Of Central Florida

UCF Catalogs

No abstract provided.

Central Florida Future, Vol. 37 No. 58, April 14, 2005

Central Florida Future

Forum speakers mostly favor stadium; It's a taxing situation: Tomorrow's deadline looms as students scramble to file on time; Film's fame a work in progress: Student works win awards showings at film festivals; Founders' Day recognizes outstanding teacher: Faculty and students honored at yearly celebration.

Sandspur, Vol 111, No 22, April 08, 2005, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

The Learning Marketspace, April 2005, Bob Heterick, Carol Twigg

The Learning MarketSpace (4/03 - 4/14)

No abstract provided.

Theoretical Evaluation Of The Nightcool Nocturnal Radiation Cooling Concept, Florida Solar Energy Center, Danny Parker

FSEC Energy Research Center®

An evaluation has been conducted of the potential of a night sky cooling system to substantially reduce space cooling needs in homes in North American climates. The report describes the innovative residential cooling system which uses nocturnal night sky radiation from a roof integrated radiator. The system uses a sealed attic covered by a highly conductive metal roof which is selectively linked by air flow to the main zone with the attic zone to provide cooling- largely during nighttime hours. Available house mass is used to store sensible cooling. Additional dehumidification is done during the evening hours as warranted by …

Central Florida Future, Vol. 37 No. 53, March 28, 2005

Central Florida Future

Higher textbook prices on horizon; Students reach out to spread AIDs awareness; Caribbean duo spice up scene; The price of protest: Construction projects cost more money as neighboring residents oppose Master Plan; Pixar animator brings life to computer graphics; Religious rites teach about Purim.

Sandspur, Vol 111, No 14, February 04, 2005, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

The Scintillation Index In Moderate To Strong Turbulence For The Gaussian Beam Wave Along A Slant Path, Fredrick Eugene Thomas

Electronic Theses and Dissertations

Scintillation is one of the most common statistics in the literature of mathematical modeling of laser propagation through random media. One approach to estimating scintillation is through the Rytov approximation, which is limited to weak atmospheric turbulence. Recently, an improvement of the Rytov approximation was developed employing a linear filter function technique. This modifies the Rytov approximation and extends the validity into the moderate to strong regime. In this work, an expression governing scintillation of a Gaussian beam along an uplink slant path valid in all regimes of turbulence is presented, as well as results for the limiting cases of …

Voice Authenticationa Study Of Polynomial Representation Of Speech Signals, John Strange

Electronic Theses and Dissertations

A subset of speech recognition is the use of speech recognition techniques for voice authentication. Voice authentication is an alternative security application to the other biometric security measures such as the use of fingerprints or iris scans. Voice authentication has advantages over the other biometric measures in that it can be utilized remotely, via a device like a telephone. However, voice authentication has disadvantages in that the authentication system typically requires a large memory and processing time than do fingerprint or iris scanning systems. Also, voice authentication research has yet to provide an authentication system as reliable as the other …

The Learning Marketspace, January 2005, Bob Heterick, Carol Twigg

The Learning MarketSpace (4/03 - 4/14)

No abstract provided.

The Effect Of Gender, Confirmation Bias, And Metacognitive Self Assessment Over Varying Levels Of Expertise In A Visuospatial Task, Tatiana Ballion

Electronic Theses and Dissertations

It has been shown that there exists a relationship between levels of metacognitive ability and estimation of personal ability for largely verbally-based tasks, where those with lessened facility for the task tend toward overestimation of their aptitude relative to their peers (Kruger and Dunning, 1999). This study examines this effect for a task of mechanical ability for volunteer participants (n = 69), where participants were given an abbreviated form of the Bennett Mechanical Comprehension Test (BMCT) to establish a level of competency. Following the administration of the BMCT, the participants were then asked to speculate on the hypothetical grade for …

The Status Of Advertising Education In The New Millennium, Joan Mccain

Electronic Theses and Dissertations

Advertising education is 100 years old in 2005. What was necessary to earn a degree in advertising, and how American universities prepared students for it, had a research champion in Billy I. Ross, who did extensive study on curriculum and degree requirements beginning in the 1960s. His last study was in 1991. The World Wide Web, Internet, digital communications and emerging consumer communication choices and preferences have educators discussing changes in advertising curriculum in the new millennium. Some challenges remain constant, while others present a new frontier. An advertising education summit in 2001, sponsored by the American Advertising Federation and …

Phase Synchronization In Three-Dimensional Lattices And Globally Coupled Populations Of Nonidentical Rossler Oscillators, Limin Qi

Electronic Theses and Dissertations

A study on phase synchronization in large populations of nonlinear dynamical systems is presented in this thesis. Using the well-known Rossler system as a prototypical model, phase synchronization in one oscillator with periodic external forcing and in two-coupled nonidentical oscillators was explored at first. The study was further extended to consider three-dimensional lattices and globally coupled populations of nonidentical oscillators, in which the mathematical formulation that represents phase synchronization in the generalized N-coupled Rossler system was derived and several computer programs that perform numerical simulations were developed. The results show the effects of coupling dimension, coupling strength, population size, and …

Session-Based Intrusion Detection System To Map Anomalous Network Traffic, Bruce Caulkins

Electronic Theses and Dissertations

Computer crime is a large problem (CSI, 2004; Kabay, 2001a; Kabay, 2001b). Security managers have a variety of tools at their disposal -- firewalls, Intrusion Detection Systems (IDSs), encryption, authentication, and other hardware and software solutions to combat computer crime. Many IDS variants exist which allow security managers and engineers to identify attack network packets primarily through the use of signature detection; i.e., the IDS recognizes attack packets due to their well-known "fingerprints" or signatures as those packets cross the network's gateway threshold. On the other hand, anomaly-based ID systems determine what is normal traffic within a network and reports …

The Influences Of System Affiliation, Size, And Location On Bioterrorism Preparedness Among Florida Hospitals, Kourtney Scharoun

Electronic Theses and Dissertations

In the event of a bioterrorist attack, emergency departments are considered the first line of response for all acute levels of care. This study focused on hospital emergency departments in Florida and the activities, policies, and procedures involved in preparing for a bioterrorist attack. Hospital size, location, and system affiliation were related to attaining these levels, and their impact was assessed. Through a cross-sectional survey design, the physical properties of the 77 hospitals (i.e. facilities, equipment, communication systems, etc.), and the social characteristics of the organizations (managerial functions including: planning, training, financial, and environmental characteristics) were examined. One-way analysis of …

Transform Based And Search Aware Text Compression Schemes And Compressed Domain Text Retrieval, Nan Zhang

Electronic Theses and Dissertations

In recent times, we have witnessed an unprecedented growth of textual information via the Internet, digital libraries and archival text in many applications. While a good fraction of this information is of transient interest, useful information of archival value will continue to accumulate. We need ways to manage, organize and transport this data from one point to the other on data communications links with limited bandwidth. We must also have means to speedily find the information we need from this huge mass of data. Sometimes, a single site may also contain large collections of data such as a library database, …

Recovery Of Hydrogen And Helium From Their Mixtures Using Metal Hydrides, Muzaffer Tonguc Oztek

Electronic Theses and Dissertations

Waste streams of hydrogen and helium mixtures are produced at the Kennedy Space Center during purging of the hydrogen systems and supply lines. This process is done prior to and after hydrogen servicing. The purged waste gases are lost to the atmosphere, resulting in an annual loss of 2 million and 0.1 million standard cubic meters of helium and hydrogen, respectively. Recovery of these gases will have an economic benefit. Metals, alloys, and intermetallics are known to react with hydrogen in favorable conditions; therefore, they have the possibility of serving as separating and recovery agents. In this study, Mg2Ni, VTiNi …

Monte Carlo Simulation Of Hole Transport And Terahertz Amplification In Multilayer Delta Doped Semiconductor Structures, Maxim Dolguikh

Electronic Theses and Dissertations

Monte Carlo method for the simulation of hole dynamics in degenerate valence subbands of cubic semiconductors is developed. All possible intra- and inter-subband scattering rates are theoretically calculated for Ge, Si, and GaAs. A far-infrared laser concept based on intersubband transitions of holes in p-type periodically delta-doped semiconductor films is studied using numerical Monte-Carlo simulation of hot hole dynamics. The considered device consists of monocrystalline pure Ge layers periodically interleaved with delta-doped layers and operates with vertical or in-plane hole transport in the presence of a perpendicular in-plane magnetic field. Inversion population on intersubband transitions arises due to light hole …

Analysis And Simulation Tools For Solar Array Power Systems, Nattorn Pongratananukul

Electronic Theses and Dissertations

This dissertation presents simulation tools developed specifically for the design of solar array power systems. Contributions are made in several aspects of the system design phases, including solar source modeling, system simulation, and controller verification. A tool to automate the study of solar array configurations using general purpose circuit simulators has been developed based on the modeling of individual solar cells. Hierarchical structure of solar cell elements, including semiconductor properties, allows simulation of electrical properties as well as the evaluation of the impact of environmental conditions. A second developed tool provides a co-simulation platform with the capability to verify the …

Mechanical Properties Of The Intervertebral Disc As An Estimator Of Postmortem Interval, Jennifer Noelle Jackson

Electronic Theses and Dissertations

Currently, forensic scientists are only able to determine time since death (or postmortem interval) up to the first 60 hours. This is based largely on insect activity. Herein, it is proposed to use the degradation of the intervertebral disc (IVD) after death to determine a relationship between the mechanical properties of cadaveric tissue and time since death in order to extend the 60-hour window. To that end, 1 fresh human spine and 6 pig spines were each separated into sections (6 human and 48 pig), with each section having one intact disc. The sections were buried, unearthed, and cleaned, leaving …

Diffraction Studies Of Deformation In Shape Memory Alloys And Selected Engineering Components, Chandrasen Rathod

Electronic Theses and Dissertations

Deformation phenomena in shape memory alloys involve stress-, temperature-induced phase transformations and crystallographic variant conversion or reorientation, equivalent to a twinning operation. In near equiatomic NiTi, Ti rich compositions can exist near room temperature as a monoclinic B19' martensitic phase, which when deformed undergoes twinning resulting in strains as large as 8%. Upon heating, the martensite transforms to a cubic B2 austenitic phase, thereby recovering the strain and exhibiting the shape memory effect. Ni rich compositions on the other hand can exist near room temperature in the austenitic phase and undergo a reversible martensitic transformation on application of stress. Associated …