Digital Commons Network^™

The Arm Motion (Amd) Detection Test, Maria C. Bengston, Leigh A. Mrotek, Tina M. Stoeckmann, Claude Ghez, Robert A. Scheidt

Biomedical Engineering Faculty Research and Publications

Stroke can lead to sensory deficits that impair functional control of arm movements. Here we describe a simple test of arm motion detection (AMD) that provides an objective, quantitative measure of movement perception related proprioceptive capabilities in the arm. Seven stroke survivors and thirteen neurologically intact control subjects performed the AMD test. In a series of ten trials that took less than 15 minutes to complete, participants used a two-button user interface to adjust the magnitude of hand displacements produced by a horizontal planar robot until the motions were just perceptible (i.e. on the threshold of detection). The standard deviation …

A Modular Low-Clearance Wrist Orthosis For Improving Wrist Motion In Children With Cerebral Palsy, Devon Holley, Michelle Johnson, Gerald F. Harris, Scott A. Beardsley

Biomedical Engineering Faculty Research and Publications

Children with Cerebral Palsy (CP) often exhibit impairments in the coordination of the grip and lift phases of arm movements that directly impact their ability to perform activities of daily living (ADLs). The application of assistive robotic therapy to children with spastic hemiplegic CP has shown that augmented movement training can lead to improved functional outcomes and improved arm kinematics. Assistive robotic therapy of the wrist has been shown to help improve motor skills in stroke patients, but the devices employed are often large and obtrusive, focusing on a repeated motion rather than a task-based itinerary. Here, we propose a …

Emerging Optical Techniques For Detection Of Oral, Cervical And Anal Cancer In Low-Resource Settings, Bing Yu, Daron G. Ferris, Yang Liu, Vivek K. Nagarajan

Biomedical Engineering Faculty Research and Publications

Cancers of the oral and anogenital regions are a growing global health problem that disproportionately impact women and men living in developing countries. The high death rate in developing countries is largely due to the fact that these countries do not have the appropriate medical infrastructure and resources to support the organized screening and diagnostic programs that are available in the developed world. Emerging optical diagnostics techniques, such as optical spectroscopy, reflectance imaging, and fluorescence imaging, are noninvasive techniques that are sensitive to multiple cancer biomarkers and have shown the potential as a cost–effective and fast tool for diagnosis of …

Big Banks And Business Method Patents, Megan M. La Belle, Heidi Mandanis Schooner

Scholarly Articles

The banking industry and the patent system are longstanding American institutions whose histories date back to the founding of this country. Historically, however, the paths of these two institutions rarely crossed. Although financial firms have been increasing their innovative output for decades now, until recently they relied on trade secrecy, first mover advantages, and other business mechanisms to protect and monetize their intellectual property — not patents.

Through a convergence of circumstances over the past several years, that pattern has changed. The shift began when the Federal Circuit decided that business methods — banks’ primary mode of innovation — are …

Sowing The Seeds Of Protection, Elizabeth I. Winston

Scholarly Articles

Seeds are chattel. As such, seeds are protectable by the same tapestry of public and private ordering as other forms of chattel. However, the distinguishing characteristic of seeds, their method of propagation, and the history of seeds-traditionally viewed as a public good rather than chatteldistort that tapestry. The model of seed distribution thus needs to be refrained in light of the often disparate interests of innovators, producers, and consumers. As with all chattel, there is no single, correct model for distributing seeds, but law and contract may be woven together to strike a balance.

Preformed Particle Gel Transport Through Fractures, Hao Zhang

Doctoral Dissertations

"Polymer gel treatment is one of the most cost-effective methods to control water production in mature oil fields. The main objective of gel treatments is to reduce water or gas flow through high-permeability channels or fractures without damaging productive zones. Preformed particle gels (PPGs) have been applied for conformance control because they can overcome some potential drawbacks inherent in an in-situ gelation system.

In this study, lab experiments were performed to quantify PPG propagation through fractures and fracture-like channels by using screen models and open fracture models. The main findings in these experiments can guide the selection of best particle …

Synthesis And Properties Of Transition-Metal Arsenide Nanostructures: From Superparamagnetism To Superconductivity, Prachi Desai

Doctoral Dissertations

"This dissertation study focuses on developing new protocols for synthesis of nanostructured transition-metal pnictides including superconducting LiFeAs and studying their structure- property relationship. Nanostructured materials are known to differ in properties compared to their bulk counterparts owing to enhanced surface area and increased packing efficiency in devices. Synthetic chemistry skills and nanofabrication techniques like wet chemistry, electrodeposition, solvothermal, hydrothermal and lithography, are extremely useful for creating nanostructures of these functional materials. This is a challenging task simply because maintaining the phase composition same as that of the bulk material along with achieving nanostructures (nanoparticles, nanowires, nanopillars etc.) simultaneously is not …

Rapid Repair Of Severely Damaged Rc Columns Under Combined Loading Of Flexure, Shear, And Torsion With Externally Bonded Cfrp, Ruili He

Doctoral Dissertations

"This research aimed to develop a technique to rapidly repair reinforced concrete (RC) bridge columns for emergency service restoration after severe earthquake damage has occurred. Experimental and analytical studies were conducted to study the performance and effectiveness of the proposed repair method. The experimental study included a series of 1/2-scale RC square bridge columns originally tested to failure under constant axial and increasing cyclic lateral loadings resulting in combined flexure, shear, and torsion with different torsional-to-flexural moment ratios. Using externally bonded carbon fiber reinforced polymer (CFRP) sheets, each column was repaired over a 3-day period and then retested under the …

Maximum Crosstalk Estimation And Modeling Of Electromagnetic Radiation From Pcb/High-Density Connector Interfaces, Matthew Scott Halligan

Doctoral Dissertations

"This dissertation explores two topics pertinent to electromagnetic compatibility research: maximum crosstalk estimation in weakly coupled transmission lines and modeling of electromagnetic radiation resulting from printed circuit board/high-density connector interfaces. Despite an ample supply of literature devoted to the study of crosstalk, little research has been performed to formulate maximum crosstalk estimates when signal lines are electrically long. Paper one illustrates a new maximum crosstalk estimate that is based on a mathematically rigorous, integral formulation, where the transmission lines can be lossy and in an inhomogeneous media. Paper two provides a thorough comparison and analysis of the newly derived maximum …

Local Liquid Velocity Measurement Of Trickle Bed Reactor Using Digitial Industrial X-Ray Radiography, Khairul Anuar Mohd Salleh

Doctoral Dissertations

"Trickle Bed Reactors (TBRs) are fixed beds of particles in which both liquid and gas flow concurrently downward. They are widely used to produce not only fuels but also lubrication products. The measurement and the knowledge of local liquid velocities (VLL) in TBRs is less which is essential for advancing the understanding of its hydrodynamics and for validation computational fluid dynamics (CFD). Therefore, this work focused on developing a new, non-invasive, statistically reliable technique that can be used to measure local liquid velocity (V_LL) in two-dimensions (2-D). This is performed by combining Digital Industrial X-ray Radiography (DIR) and …

Dissolution Behavior Of Phosphate Glasses, Li Na Ma

Doctoral Dissertations

"The solubility of phosphate glasses in aqueous solutions can be tailored through compositional control to obtain a wide range of ion release rates required for a variety of applications. The principal objective of this dissertation is to advance the understanding of the dissolution behavior of phosphate glasses in aqueous environments.

Two families of glasses, sodium-iron phosphate (NFP) glasses and sodium-calcium phosphate (NCP) glasses, were evaluated. The dissolution behavior depends on the phosphate anions that constitute the glass structure and the associated metal (Me) cations. The phosphate glass structure, defined by the distribution and average size of phosphate anions and depending …

Femtosecond Laser Micro-Machined Optical Fiber Based Embeddable Strain And Temperature Sensors For Structural Monitoring, Armadeep Kaur

Doctoral Dissertations

"Structural monitoring technology is becoming increasingly important for managing all types of structures. Embedding sensors while constructing new structures or repairing the old ones allows for continual monitoring of structural health thus giving an estimate of remaining utility. Along with being embeddable, miniaturized sensors that are easy to handle are highly sought after in the industry where in-situ monitoring is required in a harsh environment (corrosive atmosphere, high temperatures, high pressure etc.).

This dissertation demonstrates the use of femtosecond laser-fabricated Fabry-Perot interferometer (FPI) based optical fiber sensors for embedded applications like structural health monitoring. Two types of Fabry-Perot interferometer sensors, …

Study And Pilot Test On A Novel Eor Method - Coupling Ppg Conformance Control And Surfactant Flooding, Farag Awadh Muhammed

Doctoral Dissertations

"The interest in enhanced oil recovery (EOR) methods has re-emerged in recent years; however, significant challenges remain for the widespread deployment of these methods. One major downside to the successful application of EOR technologies in mature reservoirs is conformance problems (e.g. heterogeneity). To mitigate these problems, a novel EOR method which couple preformed particle gel (PPGs) conformance treatment with traditional surfactant flooding in one process is introduced.

This dissertation provides a comprehensive study for the proposed method. A series of laboratory tests were carried out to understand the chemical interaction between PPGs and surfactants. A new method to evaluate PPGs …

Probabilistic Engineering Analysis And Design Under Time-Dependent Uncertainty, Zhen Hu

Doctoral Dissertations

"Time-dependent uncertainties, such as time-variant stochastic loadings and random deterioration of material properties, are inherent in engineering applications. Not considering these uncertainties in the design process may result in catastrophic failures after the designed products are put into operation. Although significant progress has been made in probabilistic engineering design, quantifying and mitigating the effects of time-dependent uncertainty is still challenging. This dissertation aims to help build high reliability into products under time-dependent uncertainty by addressing two research issues. The first one is to efficiently and accurately predict the time-dependent reliability while the second one is to effectively design the time-dependent …

Thermal-Fluid Modeling Of The Missouri S&T Reactor, Susan Maria Sipaun

Doctoral Dissertations

"Thermal-fluid modeling of the Missouri University of Science and Technology Reactor (MSTR) was carried out using a computational fluid dynamics code (CFD), STAR-CCM+. First, a three-dimensional parallel-plate model was developed, and the cosine-shaped heat flux was applied to the MSTR core. Simulation results for fluid flow under natural convection condition show coolant temperature and velocity as a function of core power. A characteristic equation for the parallel-plate model was obtained based on Forchheimer's flow equation. The inertial resistance tensor and viscous resistance tensor were found to be 281005 kg/m^4 and 7121.6 kg/m^3 respectively. The MSTR core was then defined as …

Longitudinal Analysis Of Crash Frequency Data, Mojtaba Ale Mohammadi

Doctoral Dissertations

"This study comprises mainly of three papers. First, a systematic evaluation of the effects of Missouri's Strategic Highway Safety Plan between 2004 and 2007 is presented. Negative binomial regression models were developed for the before-through-change conditions for the various collision types and crash severities. The models were used to predict the expected number of crashes assuming with and without the implementation of MSHSP. This procedure estimated significant reductions of 10% in crashes frequency and a 30% reduction for fatal crashes. Reductions in the number of different collision types were estimated to be 18-37%. The results suggest that the MSHSP was …

A Generalized Optimal Power Flow Program For Distribution System Analysis And Operation With Distributed Energy Resources And Solid State Transformers, Fanjun Meng

Doctoral Dissertations

"The present distribution system is gradually trending towards a smart grid paradigm with massive development of distributed energy resources (DER), advanced power electronics interfaces, and a digitalized communication platform. Such profound changes bring challenges as well as opportunities for an entity like the distribution network operator (DNO) to optimally operate DERs and other controllable elements to achieve higher levels of energy efficiency, economic benefits, supply reliability and power quality.

The major contribution of this dissertation is in the development of a generalized three-phase optimal power flow (OPF) program in a novel control scheme for future distribution system optimization and economic …

Statutory Royalty Damages Under The Uniform Trade Secrets Act And The Federal Patent Code, Richard F. Dole Jr.

Vanderbilt Journal of Entertainment & Technology Law

Optional statutory royalty damages are provided for by both the version of the Uniform Trade Secrets Act that has been enacted by most of the forty seven adopting states and the federal patent code remedies for infringement of utility patents. Notwithstanding periodic recommendations that the Uniform Act follow the patent code concept of statutory royalty damages, this article takes the position that differences between the Uniform Act and the Patent Code regarding monetary remedies make it reasonable for the Uniform Act statutory royalty provisions to be construed more objectively than their federal counterpart. This will preclude statutory royalty damages acquiring …

Fracking Secrets: The Limitations Of Trade Secret Protection In Hydraulic Fracturing, John Craven

Vanderbilt Journal of Entertainment & Technology Law

Hydraulic fracturing is a drilling technique used to increase resource production in which specially blended liquid mixtures are pumped into oil and gas wells under high pressure causing underground rock formations to crack and open up. Oil and gas companies have traditionally protected the composition of these proprietary liquids through state-level trade secret laws. Opponents of hydraulic fracturing have argued for federal regulation of the process and claimed that trade secret protection is simply a way for oil and gas companies to withhold the identity of the chemicals used. Oil and gas companies are at risk of losing the economic …

From State Street Bank To Cls Bank And Back: Reforming Software Patents To Promote Innovation, Parker Hancock

Vanderbilt Journal of Entertainment & Technology Law

For the past several decades, the Supreme Court and Federal Circuit have struggled to determine if, and under what circumstances, software is patentable. Once again, the Federal Circuit had an opportunity to provide clarity when it granted en banc review in CLS Bank. The resulting opinion contained a cursory per curiam decision and numerous concurrences and dissents, showing that the question is far from answered. Ultimately, the struggle over software patentability is not itself the problem, but a symptom of other problems in the patent system. Specifically, other substantive requirements of patentability are not weeding out overly broad patents because …

Copyright, Plagiarism, And Emerging Norms In Digital Publishing, J. D. Lipton

Vanderbilt Journal of Entertainment & Technology Law

Today's copyright law derives from the needs of the publishing industry in centuries past. The digital world creates even more significant concerns for authors and publishers than those that arose with the advent of the printing press. Digital technology enables easy, fast, and inexpensive global copying and distribution of digital texts. Other digitized industries--such as the music, movie, and video-game industries--have faced these challenges with a higher apparent success rate, at least in the courts, than the publishing industry. This Article considers why publishing has been less successful in protecting its online copyrights and examines the extent to which copyright …

Fool's Gold: An Illustrated Critique Of Differential Privacy, Jane Bambauer, Krishnamurty Muralidhar, Rathindra Sarathy

Vanderbilt Journal of Entertainment & Technology Law

Differential privacy has taken the privacy community by storm. Computer scientists developed this technique to allow researchers to submit queries to databases without being able to glean sensitive information about the individuals described in the data. Legal scholars champion differential privacy as a practical solution to the competing interests in research and confidentiality, and policymakers are poised to adopt it as the gold standard for data privacy. It would be a disastrous mistake. This Article provides an illustrated guide to the virtues and pitfalls of differential privacy. While the technique is suitable for a narrow set of research uses, the …

Trends In Global Nanotechnology Regulation: The Public-Private Interplay, Reut Snir

Vanderbilt Journal of Entertainment & Technology Law

Over the last decade, concerns regarding potential exposure to nano materials gave rise to substantial new regulation intended to ensure safe development of nanotechnology applications. This Article examines the resultant regulatory system through empirical analysis of trends and patterns in global development of nanotechnology regulatory initiatives. It argues that rather than a government-driven process, it was private actors who set the regulatory wheels in motion. This Article shows that under conditions of scientific uncertainty, governments lacking technical and scientific knowledge to support risk-based regulation often leave a regulatory void. Consequently, businesses apply self-risk-management strategies to fill the gap, leading the …

Got A Better Idea?: Promoting Greenhouse Gas Regulations Through Solution-Based Informal Rulemaking, Lorraine J. Baer

Vanderbilt Journal of Entertainment & Technology Law

In September 2013, the US Environmental Protection Agency (EPA) proposed a rule regulating greenhouse gas emissions from newly constructed, coal-fired power plants. Coal industry lawyers immediately began preparing for litigation. Like many industry-led arbitrary and capricious challenges, their goal is to stop the regulations from moving forward. This Note analyzes the new rule, concluding that although the EPA's rule is legally sound, it does have some potential weaknesses. Rather than merely blocking the regulations through litigation, however, this Note proposes that interest groups should instead submit their own solutions during the notice-and-comment rulemaking process, which would reduce regulatory gridlock and …

Which Design And Biomaterial Factors Affect Clinical Wear Performance Of Total Disc Replacements? A Systematic Review, Sai Y. Veruva, Marla J. Steinbeck, Jeffrey M. Toth, Dominik D. Alexander, Steven M. Kurtz

Biomedical Engineering Faculty Research and Publications

Background

Total disc replacement was clinically introduced to reduce pain and preserve segmental motion of the lumbar and cervical spine. Previous case studies have reported on the wear and adverse local tissue reactions around artificial prostheses, but it is unclear how design and biomaterials affect clinical outcomes.

Questions/purposes

Which design and material factors are associated with differences in clinical wear performance (implant wear and periprosthetic tissue response) of (1) lumbar and (2) cervical total disc replacements?

Methods

We performed a systematic review on the topics of implant wear and periprosthetic tissue response using an advanced search in MEDLINE and Scopus …

Winter 2014, Valparaiso University Guild

Valparaiso University Guild Bulletins

No abstract provided.

A Study Of Walkway Safety And Evaluation Of Tribological Test Equipment, Henry Thomas Baker

UNF Graduate Theses and Dissertations

A walkway tribometer measures the coefficient of friction between flooring material and a test foot. The value of the coefficient of friction is an indicator as to whether the flooring surface is slippery and has a propensity to cause slip and falls. This study determined that one style of tribometer, an XL Tribometer, mimics the heel-to-floor interaction of the human heel strike. High speed video footage revealed that the test foot strikes the surface and rotates so that full engagement occurs before sliding thus mimicking the affect of a human ankle. The test foot accelerates forward as would be expected …

Building A Professional Learning Community At The University Level: A Case Study Of An Information Fluency Initiative, Susan Bennett Slavicz

UNF Graduate Theses and Dissertations

An examination of the research regarding the problems associated with student academic writing indicated that two abilities, writing abilities and information literacy skills, intersect, and that an accepted term for this intersection is information literacy. The University of Central Florida’s Information Fluency Initiative recognized information literacy as a key component in developing students’ information fluency skills. This qualitative case study of the initiative used semi-structured interviews, study of documents, and observations to gather data in order to describe how the university planned, developed, and implemented the initiative. Study of relevant literature, narrative analysis (Tierney & Lincoln, 1997), inductive analysis (Hatch, …

Evaluation Of The Empirical Deck Design For Vehicular Bridges, Georges El-Gharib

UNF Graduate Theses and Dissertations

This research evaluated the feasibility of the empirical design method for reinforced concrete bridge decks for the Florida Department of Transportation [FDOT]. There are currently three methods used for deck design: empirical method, traditional method and finite element method. This research investigated and compared the steel reinforcement ratios and the stress developed in the reinforcing steel for the three different methods of deck design. This study included analysis of 15 bridge models that met the FDOT standards. The main beams were designed and load rated using commercial software to obtain live load deflections. The bridges were checked to verify that …

E Pluribus Unum? Liberalism And The Search For Civility In America, Jeannemarie Halleck

UNF Graduate Theses and Dissertations

This paper explores issues of civility in liberal democracy, and in particular, how civility and civic engagement must be regenerated in order to forward the democratic ideals of equal rights, citizen equality and collective self-government in a meaningful way. Liberal democracy presupposes a level of civility in order to uphold standards of individual liberty and freedom, however as a theory it fails to compel citizens to support levels of mutual respect.

An etymological exploration of the term civility introduces the work of puritan theologian Roger Williams, whose early writings on individual liberty as well as the role of civility and …