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Technical Illustration: The Changes And Challenges Presented By Advancements In Technology, Cindy Caudill Jan 2014

Technical Illustration: The Changes And Challenges Presented By Advancements In Technology, Cindy Caudill

Electronic Theses and Dissertations

This thesis investigates the changes and challenges technology has created in the field of technical illustration. Technical illustration includes the fields of technical drawing as well as scientific and medical illustration. Previously, technical illustrators learned and used traditional illustration methods, without the aid of computers. However, technology has rapidly entered the field and has changed the education, work environment, skills, and role of the technical illustrator. I note both the benefits and disadvantages that current technical illustrators are facing in their work. I explore both sides of the digital media and traditional art debate while focusing on the technical illustrator's …

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Press Anywhere: Stories, Brendon Barnes Jan 2014

Press Anywhere: Stories, Brendon Barnes

Electronic Theses and Dissertations

Press Anywhere is a collection of short stories that depicts the various inadequacies of the third millennium male. Each story concerns a man, a boy, or a family on the cusp of change. These characters, burdened by their family tragedies, try to shake off their histories and renew themselves. But, in one way or another, home always finds them. Set in a shared universe, some characters appear in multiple stories, including one boy who dreams of an unlikely superhero to save him from an abusive sibling, and a man determined to outlive a family curse.

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The Relevance Of Benjamin Franklin's And Thomas Jefferson's Technical Writing For Modern Communicators, Kristin Fecko Jan 2014

The Relevance Of Benjamin Franklin's And Thomas Jefferson's Technical Writing For Modern Communicators, Kristin Fecko

Electronic Theses and Dissertations

Today's technical communicators enjoy an increasingly broader role and influence in the workplace, and are often given latitude to use engaging rhetoric and personal touches in many kinds of communications. Historical documents, particularly those that are substantially removed from our own era, can offer fresh approaches and insight into the enduring elements of successful communication. This study explores the technical writings of Benjamin Franklin and Thomas Jefferson and considers their usefulness to professionals today. Although the political writing of Franklin and Jefferson is more familiar, both men frequently wrote about scientific and technical subjects and were well-known in their day …

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Female Bias In Technical Communication And An Exploration Of Pedagogical Strategies For Reversing The Bias, Rebecca Beeson Jan 2014

Female Bias In Technical Communication And An Exploration Of Pedagogical Strategies For Reversing The Bias, Rebecca Beeson

Electronic Theses and Dissertations

This thesis explores technical communication and seeks to establish that females outnumber males in the field while also holder more high-level positions. It further seeks to show why a field does not benefit from having one sex outnumber the other. The benefits of having an equal number of females and males contributing to the growth and expansion of the field are discussed. Finally, this thesis discusses potential pedagogical strategies which could be employed at the college level as a means of attracting more young men to the field and allowing for maximum growth of technical communication as a field of …

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In Actu Et In Silicio: Linear And Nonlinear Photophysical Characterization Of A Novel Europium Complex, And Incorporating Computational Calculations In The Analysis Of Novel Organic Compounds, Adam Woodward Jan 2014

In Actu Et In Silicio: Linear And Nonlinear Photophysical Characterization Of A Novel Europium Complex, And Incorporating Computational Calculations In The Analysis Of Novel Organic Compounds, Adam Woodward

Electronic Theses and Dissertations

Despite not being a tangible substance, light is becoming an increasingly valuable tool in numerous areas of science and technology: the use of laser excitation of a fluorescent probe can generate incredibly detailed images of cellular structures without the need for large amounts of dissection; new types of solar cells are being produced using organic dyes to harvest light; computer data can be stored by inducing a chemical change in a compound through irradiation with light. However, before any of these materials can be applied in such a way, their properties must first be analyzed for them to be deemed …

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Synthesis Of Fluorescent Molecules And Their Applications As Viscosity Sensors, Metal Ion Indicators, And Near-Infrared Probes, Mengyuan Wang Jan 2014

Synthesis Of Fluorescent Molecules And Their Applications As Viscosity Sensors, Metal Ion Indicators, And Near-Infrared Probes, Mengyuan Wang

Electronic Theses and Dissertations

The primary focus of this dissertation is the development of novel fluorescent near-infrared molecules for various applications. In Chapter 1, a compound dU-BZ synthesized via Sonogashira coupling reaction methodology is described. A deoxyuridine building block was introduced to enhance hydrophilic properties and reduce toxicity, while an alkynylated benzothiazolium dye was incorporated for near-IR emission and reduce photodamage and phototoxicity that is characteristic of common fluorphores that are excited by UV or visible light. A 30-fold enhancement of fluorescence intensity of dU-BZ was achieved in a viscous environment. Values of fluorescence quantum yields in 99% glycerol/1% methanol (v/v) of varying temperature …

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Pressure And Temperature Response Of A Stimuli-Responsive Polymer Probed With Raman Microscopy, Coleman Cariker Jan 2014

Pressure And Temperature Response Of A Stimuli-Responsive Polymer Probed With Raman Microscopy, Coleman Cariker

HIM 1990-2015

Poly(N-isopropylacrylamide) (PNIPAM) is a thermo-responsive hydrogel; that is, it is a macromolecule which exists in a hydrated state beneath its lower critical solution temperature (LCST). Polymers such as PNIPAM undergo a phase transition in response to changes in temperature, pressure, pH, salt concentration, and the addition of co-solvents. Previously, visible-light microscopic measurements of the pressure-induced phase transition have been hindered by the lack of a pressurization apparatus with the short working distance and optical transmission properties necessary for high resolution microscopy. We employ a high pressure setup which uses a fused silica micro-capillary to contain the sample. Our experiment reveals …

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Cascaded Plasmon Resonances For Enhanced Nonlinear Optical Response, Seyfollah Toroghi Jan 2014

Cascaded Plasmon Resonances For Enhanced Nonlinear Optical Response, Seyfollah Toroghi

Electronic Theses and Dissertations

The continued development of integrated photonic devices requires low-power, small volume all-optical modulators. The weak nonlinear optical response of conventional optical materials requires the use of high intensities and large interaction volumes in order to achieve significant light modulation, hindering the miniaturization of all-optical switches and the development of lightweight transmission optics with nonlinear optical response. These challenges may be addressed using plasmonic nanostructures due to their unique ability to confine and enhance electric fields in sub-wavelength volumes. The ultrafast nonlinear response of free electrons in such plasmonic structures and the fast thermal nonlinear optical response of metal nanoparticles, as …

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On Kernel-Base Multi-Task Learning, Cong Li Jan 2014

On Kernel-Base Multi-Task Learning, Cong Li

Electronic Theses and Dissertations

Multi-Task Learning (MTL) has been an active research area in machine learning for two decades. By training multiple relevant tasks simultaneously with information shared across tasks, it is possible to improve the generalization performance of each task, compared to training each individual task independently. During the past decade, most MTL research has been based on the Regularization-Loss framework due to its flexibility in specifying various types of information sharing strategies, the opportunity it offers to yield a kernel-based methods and its capability in promoting sparse feature representations. However, certain limitations exist in both theoretical and practical aspects of Regularization-Loss-based MTL. …

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Studying Short-Period Comets And Long-Period Comets Detected By Wise/Neowise, Emily Kramer Jan 2014

Studying Short-Period Comets And Long-Period Comets Detected By Wise/Neowise, Emily Kramer

Electronic Theses and Dissertations

The Wide-field Infrared Survey Explorer (WISE) mission surveyed the sky in four infrared wavelength bands (3.4, 4.6, 12 and 22 μm) between January 2010 and February 2011. During the mission, WISE serendipitously observed 160 comets, including 21 newly discovered objects. About 89 of the comets observed by WISE displayed a significant dust tail in the 12 and 22 μm (thermal emission) bands, showing a wide range of activity levels and dust morphology. Since the observed objects are a mix of both long-period comets (LPCs) and short-period comets (SPCs), differences in their activity can be used to better understand the thermal …

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Tiling Properties Of Spectra Of Measures, John Haussermann Jan 2014

Tiling Properties Of Spectra Of Measures, John Haussermann

Electronic Theses and Dissertations

We investigate tiling properties of spectra of measures, i.e., sets Λ in R such that {e 2πiλx : λ ∈ Λ} forms an orthogonal basis in L 2 (µ), where µ is some finite Borel measure on R. Such measures include Lebesgue measure on bounded Borel subsets, finite atomic measures and some fractal Hausdorff measures. We show that various classes of such spectra of measures have translational tiling properties. This lead to some surprizing tiling properties for spectra of fractal measures, the existence of complementing sets and spectra for finite sets with the Coven-Meyerowitz property, the existence of complementing Hadamard …

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Computational Fluid Dynamics Uncertainty Analysis For Payload Fairing Spacecraft Environmental Control Systems, Curtis Groves Jan 2014

Computational Fluid Dynamics Uncertainty Analysis For Payload Fairing Spacecraft Environmental Control Systems, Curtis Groves

Electronic Theses and Dissertations

Spacecraft thermal protection systems are at risk of being damaged due to airflow produced from Environmental Control Systems. There are inherent uncertainties and errors associated with using Computational Fluid Dynamics to predict the airflow field around a spacecraft from the Environmental Control System. This paper describes an approach to quantify the uncertainty in using Computational Fluid Dynamics to predict airflow speeds around an encapsulated spacecraft without the use of test data. Quantifying the uncertainty in analytical predictions is imperative to the success of any simulation-based product. The method could provide an alternative to traditional “validation by test only” mentality. This …

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Experiments In Graphene And Plasmonics, Christian Smith Jan 2014

Experiments In Graphene And Plasmonics, Christian Smith

Electronic Theses and Dissertations

Graphene nanoribbons, graphene based optical sensors, and grating based plasmonics are explored experimentally. Graphene nanoribbons exhibit highly insulating states that may allow for graphene based digital applications. We investigate the sensitivity of these states to local charged impurities in ultra high vacuum. We look into the possibility of isolating two-dimensional films of H-BN and BSCCO, and test for any interesting phenomena. We also assess graphene*s applicability for optical sensing by implementing a new style of spectral detector. Utilizing surface plasmon excitations nearby a graphene field-effect transistor we are able to produce a detector with wavelength sensitivity and selectivity in the …

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Context-Aware Mobile Augmented Reality Visualization In Construction Engineering Education, Arezoo Shirazi Jan 2014

Context-Aware Mobile Augmented Reality Visualization In Construction Engineering Education, Arezoo Shirazi

Electronic Theses and Dissertations

Recent studies suggest that the number of students pursuing science, technology, engineering, and mathematics (STEM) degrees has been generally decreasing. An extensive body of research cites the lack of motivation and engagement in the learning process as a major underlying reason of this decline. It has been discussed that if properly implemented, instructional technology can enhance student engagement and the quality of learning. Therefore, the main goal of this research is to implement and assess effectiveness of augmented reality (AR)-based pedagogical tools on student learning. For this purpose, two sets of experiments were designed and implemented in two different construction …

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Nonlinear Dispersive Partial Differential Equations Of Physical Relevance With Applications To Vortex Dynamics, Robert Vangorder Jan 2014

Nonlinear Dispersive Partial Differential Equations Of Physical Relevance With Applications To Vortex Dynamics, Robert Vangorder

Electronic Theses and Dissertations

Nonlinear dispersive partial differential equations occur in a variety of areas within mathematical physics and engineering. We study several classes of such equations, including scalar complex partial differential equations, vector partial differential equations, and finally non-local integro-differential equations. For physically interesting families of these equations, we demonstrate the existence (and, when possible, stability) of specific solutions which are relevant for applications. While multiple application areas are considered, the primary application that runs through the work would be the nonlinear dynamics of vortex filaments under a variety of physical models. For instance, we are able to determine the structure and time …

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High Resolution Time-Resolved Imaging System In The Vacuum Ultraviolet Region, Yuseong Jang Jan 2014

High Resolution Time-Resolved Imaging System In The Vacuum Ultraviolet Region, Yuseong Jang

Electronic Theses and Dissertations

High-power debris-free vacuum ultraviolet (VUV) light sources have applications in several scientific and engineering areas, such as high volume manufacturing lithography and inspection tools in the semiconductor industry, as well as other applications in material processing and photochemistry. For the past decades, the semiconductor industry has been driven by what is called "Moore's Law". The entire semiconductor industry relies on this rule, which requires chip makers to pack transistors more tightly with every new generation of chips, shrinking the size of transistors. The ability to solve roadmap challenges is, at least partly, proportional to our ability to measure them. The …

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Replacing The "Raise Your Hand To Speak" Rule With New Social And Sociomathematical Norms In An Elementary Mathematics Classroom, Lisa Brooks Jan 2014

Replacing The "Raise Your Hand To Speak" Rule With New Social And Sociomathematical Norms In An Elementary Mathematics Classroom, Lisa Brooks

Electronic Theses and Dissertations

This qualitative study documents the establishment of new social and sociomathematical norms in a second grade classroom. The teacher allowed students to speak directly to one another without having to raise their hands first during whole group mathematics instruction. Reform efforts in mathematics and the standards for mathematical practice contained in the Common Core State Standards call for students to discuss their reasoning with each other. Data were collected through interviews with the teacher and students, field notes, and video-recorded lessons over the course of 23 days. An online survey tool was utilized to share selected video of the teacher's …

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Ipads For Students With Asd: Comparing Delivery Modes For Visual Activity Schedules, Jillian Gourwitz Jan 2014

Ipads For Students With Asd: Comparing Delivery Modes For Visual Activity Schedules, Jillian Gourwitz

Electronic Theses and Dissertations

Visual Activity Schedules (VAS) are tools that present an abstract concept, such as time, in a more concrete and manageable form. VAS allow students to anticipate upcoming events and activities, develop an understanding of time, and facilitate the ability to predict change. Prior investigations have used VAS to increase on-task behavior while enhancing the student's ability to independently make transitions from one activity to another and are particularly appropriate as they capitalize on the visual strengths exhibited by many students with autism. Mobile devices such as the iPad are becoming a tool for teaching students with disabilities, and research is …

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Investigating The Relationships Between Preferences, Gender, And High School Students' Geometry Performance, Bhesh Mainali Jan 2014

Investigating The Relationships Between Preferences, Gender, And High School Students' Geometry Performance, Bhesh Mainali

Electronic Theses and Dissertations

In this quantitative study, the relationships between high school students' preference for solution methods, geometry performance, task difficulty, and gender were investigated. The data was collected from 161 high school students from six different schools at a county located in central Florida in the United States. The study was conducted during the 2013-2014 school year. The participants represented a wide range in socioeconomic status, were from a range of grades (10-12), and were enrolled in different mathematics courses (Algebra 2, Geometry, Financial Algebra, and Pre-calculus). Data were collected primarily with the aid of a geometry test and a geometry questionnaire. …

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Theoretical And Numerical Studies Of Phase Transitions And Error Thresholds In Topological Quantum Memories, Pejman Jouzdani Jan 2014

Theoretical And Numerical Studies Of Phase Transitions And Error Thresholds In Topological Quantum Memories, Pejman Jouzdani

Electronic Theses and Dissertations

This dissertation is the collection of a progressive research on the topic of topological quantum computation and information with the focus on the error threshold of the well-known models such as the unpaired Majorana, the toric code, and the planar code. We study the basics of quantum computation and quantum information, and in particular quantum error correction. Quantum error correction provides a tool for enhancing the quantum computation fidelity in the noisy environment of a real world. We begin with a brief introduction to stabilizer codes. The stabilizer formalism of the theory of quantum error correction gives a well-defined description …

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Phonological Working Memory Deficits In Adhd Revisited: The Role Of Lower-Level Information Processing Deficits In Impaired Working Memory Performance, Joseph Raiker Jan 2014

Phonological Working Memory Deficits In Adhd Revisited: The Role Of Lower-Level Information Processing Deficits In Impaired Working Memory Performance, Joseph Raiker

Electronic Theses and Dissertations

Working memory deficits in children with ADHD are well established; however, insufficient evidence exists concerning the degree to which lower-level cognitive processes contribute to these deficits. The current study dissociates lower level information processing abilities (i.e., visual registration, orthographic conversion, and response output) in children with ADHD and typically developing children and examines the unique contribution of these processes to their phonological working memory performance. Thirty-four boys between 8 and 12 years of age (20 ADHD, 14 typically developing) were administered novel information processing and phonological working memory tasks. Between-group differences were examined and bootstrap mediation analysis was used to …

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The Effects Of High-Intensity Interval Training And 28 Days Of [Beta]-Hydroxy-[Beta]-Methybutyrate Supplementation On Measures Of Aerobic Power And Metabolic Thresholds, Edward Robinson Jan 2014

The Effects Of High-Intensity Interval Training And 28 Days Of [Beta]-Hydroxy-[Beta]-Methybutyrate Supplementation On Measures Of Aerobic Power And Metabolic Thresholds, Edward Robinson

Electronic Theses and Dissertations

Purpose: To examine the effects of 28 days of β-hydroxy-β-methylbutyrate free acid (HMB) and high-intensity interval training (HIIT) on maximal oxygen consumption (VO2peak), ventilatory threshold (VT), respiratory compensation point (RCP) and time to exhaustion (Tmax) in collegeaged men and women. Methods: Healthy men and women (n=34, age and VO2peak= 22.7+3.1yr and 39.3+5.0 mL. kg-1.min-1, respectively) participated in this study. All participants completed a series of tests prior and subsequent to treatment. A maximal oxygen consumption test was performed on a cycle ergometer to assess VO2peak, Tmax, VT, and RCP. The peak power output (Ppeak), power at VT (PVT) and power …

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Complementary Layered Learning, Sean Mondesire Jan 2014

Complementary Layered Learning, Sean Mondesire

Electronic Theses and Dissertations

Layered learning is a machine learning paradigm used to develop autonomous robotic-based agents by decomposing a complex task into simpler subtasks and learns each sequentially. Although the paradigm continues to have success in multiple domains, performance can be unexpectedly unsatisfactory. Using Boolean-logic problems and autonomous agent navigation, we show poor performance is due to the learner forgetting how to perform earlier learned subtasks too quickly (favoring plasticity) or having difficulty learning new things (favoring stability). We demonstrate that this imbalance can hinder learning so that task performance is no better than that of a suboptimal learning technique, monolithic learning, which …

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Improved Internet Security Protocols Using Cryptographic One-Way Hash Chains, Amerah Alabrah Jan 2014

Improved Internet Security Protocols Using Cryptographic One-Way Hash Chains, Amerah Alabrah

Electronic Theses and Dissertations

In this dissertation, new approaches that utilize the one-way cryptographic hash functions in designing improved network security protocols are investigated. The proposed approaches are designed to be scalable and easy to implement in modern technology. The first contribution explores session cookies with emphasis on the threat of session hijacking attacks resulting from session cookie theft or sniffing. In the proposed scheme, these cookies are replaced by easily computed authentication credentials using Lamport's well-known one-time passwords. The basic idea in this scheme revolves around utilizing sparse caching units, where authentication credentials pertaining to cookies are stored and fetched once needed, thereby, …

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Modeling And Fault Detection In Dc Side Of Photovoltaic Arrays, Mohd Akram Jan 2014

Modeling And Fault Detection In Dc Side Of Photovoltaic Arrays, Mohd Akram

Electronic Theses and Dissertations

Fault detection in PV systems is a key factor in maintaining the integrity of any PV system. Faults in photovoltaic systems can cause irrevocable damages to the stability of the PV system and substantially decrease the power output generated from the array of PV modules. Among'st the various AC and DC faults in a PV system, the clearance of the AC side faults is achieved by conventional AC protection schemes,the DC side, however , there still exists certain faults which are difficult to detect and clear. This paper deals with the modeling, detection and classification of these types of DC …

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Response Of Electrified Micro-Jets To Electrohydrodynamic Perturbations, Weiwei Yang Jan 2014

Response Of Electrified Micro-Jets To Electrohydrodynamic Perturbations, Weiwei Yang

Electronic Theses and Dissertations

The breakup of liquid jets is ubiquitous with rich underpinning physics and widespread applications. The natural breakup of liquid jets originates from small ambient perturbations, which can grow exponentially until the amplitude as large as the jet radius is reached. For unelectrified inviscid jets, surface energy analysis shows that only the axisymmetric perturbation is possibly unstable, and this mode is referred as varicose instability. For electrified jets, the presence of surface charge enables additional unstable modes, among which the most common one is the whipping (or kink) instability that bends and stretches the charged jet that is responsible for the …

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Tiling The Integers, Shasha Li Jan 2014

Tiling The Integers, Shasha Li

Electronic Theses and Dissertations

A set tiles the integers if and only if the integers can be written as a disjoint union of translates of that set. Counterexamples based on finite Abelian groups show that Fuglede conjecture is false in high dimensions. A solution for the Fuglede conjecture in Z or all the groups ZN would provide a solution for the Fuglede conjecture in R. Focusing on tiles in dimension one, we will concentrate on the analysis of tiles in the finite groups ZN. Based on the Coven- Meyerowitz conjecture, it has been proved that if any spectral set in Z satisfies the the …

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Plugging Up The Leaky Stem Pipeline With A Stereotype Threat Mentoring Intervention, Luiz Xavier Jan 2014

Plugging Up The Leaky Stem Pipeline With A Stereotype Threat Mentoring Intervention, Luiz Xavier

Electronic Theses and Dissertations

The present study compared the effectiveness of different mentoring programs at reducing feelings of stereotype threat experienced by women in science, technology, engineering, and math (STEM) fields. Stereotype threat refers to the extra pressure a person feels to disprove a negative stereotype that applies to him or her. Because stereotype threat has been found to undermine performance and interest in stereotyped domains, it may be a key factor contributing to female underrepresentation in STEM fields. Mentors and proteges were placed in either a stereotype threat reduction condition in which mentors and proteges were encouraged to participate in discussions designed to …

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Characterization Of Dynamic Structures Using Parametric And Non-Parametric System Identification Methods, Ayad Al Rumaithi Jan 2014

Characterization Of Dynamic Structures Using Parametric And Non-Parametric System Identification Methods, Ayad Al Rumaithi

Electronic Theses and Dissertations

The effects of soil-foundation-structure (SFS) interaction and extreme loading on structural behaviors are important issues in structural dynamics. System identification is an important technique to characterize linear and nonlinear dynamic structures. The identification methods are usually classified into the parametric and non-parametric approaches based on how to model dynamic systems. The objective of this study is to characterize the dynamic behaviors of two realistic civil engineering structures in SFS configuration and subjected to impact loading by comparing different parametric and non-parametric identification results. First, SFS building models were studied to investigate the effects of the foundation types on the structural …

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Shop Scheduling In The Presence Of Batching, Sequence-Dependent Setups And Incompatible Job Families Minimizing Earliness And Tardiness Penalties, Patricia Buchanan Jan 2014

Shop Scheduling In The Presence Of Batching, Sequence-Dependent Setups And Incompatible Job Families Minimizing Earliness And Tardiness Penalties, Patricia Buchanan

Electronic Theses and Dissertations

The motivation of this research investigation stems from a particular job shop production environment at a large international communications and information technology company in which electro-mechanical assemblies (EMAs) are produced. The production environment of the EMAs includes the continuous arrivals of the EMAs (generally called jobs), with distinct due dates, degrees of importance and routing sequences through the production workstations, to the job shop. Jobs are processed in batches at the workstations, and there are incompatible families of jobs, where jobs from different product families cannot be processed together in the same batch. In addition, there are sequence-dependent setups between …

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