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Articles 25321 - 25350 of 25623
Full-Text Articles in Entire DC Network
On-Road Remote Sensing Of Automobile Emissions In The Denver Area: Winter 2017, Gary A. Bishop, Molly J. Haugen
On-Road Remote Sensing Of Automobile Emissions In The Denver Area: Winter 2017, Gary A. Bishop, Molly J. Haugen
Fuel Efficiency Automobile Test Publications
No abstract provided.
On-Road Remote Sensing Of Automobile Emissions In The Tulsa Area: Fall 2017, Gary A. Bishop
On-Road Remote Sensing Of Automobile Emissions In The Tulsa Area: Fall 2017, Gary A. Bishop
Fuel Efficiency Automobile Test Publications
No abstract provided.
Simulation-Based Security Of Function-Hiding Inner Product Encryption, Qingsong Zhao, Qingkai Zeng, Ximeng Liu, Huanliang Xu
Simulation-Based Security Of Function-Hiding Inner Product Encryption, Qingsong Zhao, Qingkai Zeng, Ximeng Liu, Huanliang Xu
Research Collection School Of Computing and Information Systems
Functional encryption (FE) [1,2] is a modern type of encryption scheme that extends several previous notions and allows tremendous flexibility in controlling and computing on encrypted data. FE enables an authority to derive constrained decryption keys that are used by a user to obtain specific functions of encrypted messages. Informally, the authority generates a secret key skf for a function f from a master secret key. Then, the user can only learn f(x) from a ciphertext Enc(x) with skf and reveal nothing else about x.
Real-World Large-Scale Iot Systems For Community Eldercare: A Comparative Study On System Dependability, Hwee-Pink Tan, Austin Zhang
Real-World Large-Scale Iot Systems For Community Eldercare: A Comparative Study On System Dependability, Hwee-Pink Tan, Austin Zhang
Research Collection School Of Computing and Information Systems
The paradigm of aging-in-place — where the elderly live and age in their own homes, independently and safely, with care provided by the community — is compelling, especially in societies that face both shortages in institutionalized eldercare resources, and rapidly-aging populations. Internet-of-Things (IoT) technologies, particularly in-home monitoring solutions, are commercially available, and can be a fundamental enabler of smart community eldercare, if they are dependable. In this paper, we present our findings on system performance of solutions from two vendors, which we have deployed at scale for technology-enabled community care. In particular, we highlight the importance of quantifying actual system …
Discriminant Analysis On Riemannian Manifold Of Gaussian Distributions For Face Recognition With Image Sets, W. Wang, R. Wang, Zhiwu Huang, S. Shan, X. Chen
Discriminant Analysis On Riemannian Manifold Of Gaussian Distributions For Face Recognition With Image Sets, W. Wang, R. Wang, Zhiwu Huang, S. Shan, X. Chen
Research Collection School Of Computing and Information Systems
To address the problem of face recognition with image sets, we aim to capture the underlying data distribution in each set and thus facilitate more robust classification. To this end, we represent image set as the Gaussian mixture model (GMM) comprising a number of Gaussian components with prior probabilities and seek to discriminate Gaussian components from different classes. Since in the light of information geometry, the Gaussians lie on a specific Riemannian manifold, this paper presents a method named discriminant analysis on Riemannian manifold of Gaussian distributions (DARG). We investigate several distance metrics between Gaussians and accordingly two discriminative learning …
Study Of Gas Production From Shale Reservoirs With Multi-Stage Hydraulic Fracturing Horizontal Well Considering Multiple Transport Mechanisms, Chaohua Guo, Mingzhen Wei, Hong Liu
Study Of Gas Production From Shale Reservoirs With Multi-Stage Hydraulic Fracturing Horizontal Well Considering Multiple Transport Mechanisms, Chaohua Guo, Mingzhen Wei, Hong Liu
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Development of unconventional shale gas reservoirs (SGRs) has been boosted by the advancements in two key technologies: horizontal drilling and multi-stage hydraulic fracturing. A large number of multi-stage fractured horizontal wells (MsFHW) have been drilled to enhance reservoir production performance. Gas flow in SGRs is a multi-mechanism process, including: desorption, diffusion, and non-Darcy flow. The productivity of the SGRs with MsFHW is influenced by both reservoir conditions and hydraulic fracture properties. However, rare simulation work has been conducted for multi-stage hydraulic fractured SGRs. Most of them use well testing methods, which have too many unrealistic simplifications and assumptions. Also, no …
Varied Length Stokes Shift Bodipy-Based Fluorophores For Multicolor Microscopy, Amy M. Bittel, Ashley M. Davis, Lei Wang, Michel A. Nederlof, Jorge O. Escobedo, Robert Strongin, Summer L. Gibbs
Varied Length Stokes Shift Bodipy-Based Fluorophores For Multicolor Microscopy, Amy M. Bittel, Ashley M. Davis, Lei Wang, Michel A. Nederlof, Jorge O. Escobedo, Robert Strongin, Summer L. Gibbs
Chemistry Faculty Publications and Presentations
Multicolor microscopy tools necessary to localize and visualize the complexity of subcellular systems are limited by current fluorophore technology. While commercial fluorophores cover spectral space from the ultraviolet to the near infrared region and are optimized for conventional bandpass based fluorescence microscopy, they are not ideal for highly multiplexed fluorescence microscopy as they tend to have short Stokes shifts, restricting the number of fluorophores that can be detected in a single sample to four to five. Herein, we synthesized a library of 95 novel boron-dipyrromethene (BODIPY)- based fluorophores and screened their photophysical, optical and spectral properties for their utility in …
Exploring The Effectiveness Of Academic Coaching For Academically At-Risk College Students, Madeline Kyle Capstick
Exploring The Effectiveness Of Academic Coaching For Academically At-Risk College Students, Madeline Kyle Capstick
Electronic Theses and Dissertations Archive
The purpose of this study was to determine the effectiveness of the Academic Coaching for Excellence (ACE) program for academically at-risk students over the course of five academic semesters from Spring 2015 to Spring 2017. The study utilized archival data from 1,440 undergraduate students using a cohort-based, nonequivalent groups post-tests design. The students were on academic warning, meaning they had fallen below a 2.00 GPA in the previous academic semester and were within their first 59 credit hours of college. Results from the study found that full- and part-time students who participated in academic coaching had significant GPA increases, were …
An Analysis Of The Relationship Between Teacher Perception Of Community Support And Involvement At Their School And Student Rates Of Attendance, Graduation And Academic Proficiency, Sandra Hamer Smith
An Analysis Of The Relationship Between Teacher Perception Of Community Support And Involvement At Their School And Student Rates Of Attendance, Graduation And Academic Proficiency, Sandra Hamer Smith
Electronic Theses and Dissertations Archive
The purpose of this study was to explore the relationships between educators perceptions of the quality of community support and involvement at their high schools and five longitudinally measured indices of school effectiveness. Given a sample of 248 Tennessee high schools, secondary data derived from the Community Support and Involvement subsection of the Teaching, Empowering, Leading, and Learning (TELL) Questionnaire Survey administered in 2013 were merged with concurrent student attendance, student graduation, and student achievement outcomes archived and made publically available on the Tennessee Department of Education website.After controlling for the impact of student and faculty demographic variables, hierarchical multiple …
Optimal Delivery Of Remedial Mathematics Programs In U.S. Higher Education, Lisa Renee Loden
Optimal Delivery Of Remedial Mathematics Programs In U.S. Higher Education, Lisa Renee Loden
Electronic Theses and Dissertations Archive
Remedial mathematics has been considered the roadblock to obtaining a college degree by students and educators for years. The purpose of this research is to determine the optimal time and delivery method of the three presented (fully module, module with a traditional lecture component, and fully on-line) for teaching remedial mathematics. This is accomplished by comparing pass rates. First, pass rates are compared to determine if there is a statistically significant difference between pass rates in the two models for teaching remedial mathematics (pre-requisite and co-requisite). Next, pass rates are compared to determine if there is a statistically significant difference …
Education On The Inside: Incarcerated Students' Perceptions Of Correctional Education Programs, Stephanie Cage
Education On The Inside: Incarcerated Students' Perceptions Of Correctional Education Programs, Stephanie Cage
Electronic Theses and Dissertations Archive
The United States has alarmingly high incarceration and recidivism rates. Many of those incarcerated have less education than their general population counterparts. Correctional education programs have a proven ability to reduce incarceration and recidivism rates by helping rehabilitate people. Current research on incarcerated students primarily focuses on the external benefits of correctional education programs such as recidivism. A limited amount of research is represented in the literature on incarcerated students’ perceptions about their academic experiences. The purpose of this study was to explore incarcerated students’ perceptions regarding their correctional education experiences. The study particularly investigated students at a Louisiana correctional …
Multiple Stimuli Responsive Drug Delivery System Based On Magnetic Nanoparticle Embedded Chitosan Microbeads, Ankita Mohapatra
Multiple Stimuli Responsive Drug Delivery System Based On Magnetic Nanoparticle Embedded Chitosan Microbeads, Ankita Mohapatra
Electronic Theses and Dissertations Archive
Direct drug administration has several shortcomings such as low circulation concentration due to rapid flushing by the immune system, non-specificity to target tissue and inefficient delivery to avascular sites. A widely adopted solution to these limitations is to sterically shield the drug from a harsh in vivo environment by encapsulation in a biocompatible, bio-degradable substrate. These Drug Delivery System (DDS) can be localized at the site and release drug gradually until the drug reserve is exhausted. However, the efficiency of this DDS can be further enhanced by designing them to elute drug in response to an external stimulus. This enhancement …
Problems In Extremal Graph Theory, Kamil Popielarz
Problems In Extremal Graph Theory, Kamil Popielarz
Electronic Theses and Dissertations Archive
This dissertation consists of six chapters concerning a variety of topics in extremal graph theory.Chapter 1 is dedicated to the results in the papers with Antnio Giro, Gbor Mszros, and Richard Snyder. We say that a graph is path-pairable if for any pairing of its vertices there exist edge disjoint paths joining the vertices in eachpair. We study the extremal behavior of maximum degree and diameter in some classes of path-pairable graphs. In particular we show that a path-pairable planar graph must have a vertex of linear degree.In Chapter 2 we present a joint work with Antnio Giro and Teeradej …
Simulation Of Strong Ground Motions Using The Stochastic Summation Of Small To Moderate Earthquakes As Green's Functions, Farhad Sedaghati
Simulation Of Strong Ground Motions Using The Stochastic Summation Of Small To Moderate Earthquakes As Green's Functions, Farhad Sedaghati
Electronic Theses and Dissertations Archive
Central and eastern North America (CENA) is considered to be a moderately active region, but it suffers from a lack of recorded earthquakes in the magnitude-distance range of engineering interest. In this dissertation, region-specific synthetic strong ground motion time histories are generated using a new and improved stochastic summation of Green's functions method (SSGFM) for CENA. In addition, the synthetics are used to develop ground motion prediction equations (GMPEs) for this region. For simulating large earthquakes, considering the effects of finite-fault rupture such as rupture propagation, asperities, and fault-site geometry (saturation effect) are significant and influential. The SSGFM is a …
Teachers Perceptions Of Implementing M-Learning Using Pedagogical Approaches, James Albert Barnes
Teachers Perceptions Of Implementing M-Learning Using Pedagogical Approaches, James Albert Barnes
Electronic Theses and Dissertations Archive
Mobile learning (m-learning) has begun its transition from focusing on technology devices to pedagogical approaches that guide the design, development, and implementation of teaching and learning. The trends in the literature have identified pedagogical approaches, professional development and instructional practices that have improved academic achievement with teachers abilities and perceptions as a contributing factor. However, a gap remains about the degree to which teachers effectively integrate and implement m-learning to make a significant impact on teaching and learning. To address this gap, this research was a causal comparative study examining two schools perceptions of implementing m-learning after receiving differing types …
The Relationship Between The Perceived Implementation Of Green's Four-Dimensional Model Of Educational Leadership And Students' Proficiency In Basic Skills, Josie Currie
Electronic Theses and Dissertations Archive
The purpose of this study is to investigate relationships between elementary-level educators perceptions of their schools implementation of Greens four-dimensional model of educational leadership and the percentage of students proficient in Language Arts and in Mathematics, averaged over three years. Represented by responses to twenty items selected from the 2013 state-wide administration of the Teaching, Empowering, Leading, and Learning survey in Tennessee (TELL Tennessee), school-level means at 1,187 elementary schools were obtained for each of four five-item scales that were intended to measure each dimension of Greens model. Along with a grand mean computed across all twenty items and denoting …
Three Voices, One Goal: A Narrative Study Of High School Facilitators' Experience In A Community Of Practice, Ebony Briggs
Three Voices, One Goal: A Narrative Study Of High School Facilitators' Experience In A Community Of Practice, Ebony Briggs
Electronic Theses and Dissertations Archive
Special education and general education teachers must work collaboratively in a single classroom that serves the diverse needs of all children due to federal regulations such as the No Child Left Behind Act of 2001 and the Individuals with Disabilities Education Act of 2004. Evidence-based practices that foster collaboration are scarce. The purpose of this narrative inquiry research was to explore the perceptions of a team of educators which consists of a general education teacher, special education teacher, and an administrator on how their experience of participating in a community of practice is beneficial to addressing collaboration needs of team …
Learning From Errors In The Adaptive Mathematics Tutoring System, Jun Xie
Learning From Errors In The Adaptive Mathematics Tutoring System, Jun Xie
Electronic Theses and Dissertations Archive
Errors are considered to play a crucial role in facilitating self-reflection and knowledge acquisition. Nevertheless, nowadays how students benefit from errors in learning is still open to debate. That is, help is superior to practice for learning from errors or not. The goal of this dissertation is to systematically explore how students use help and practice to learn from errors in ALEKS (i.e. Assessment and LEarning in Knowledge Spaces), an adaptive math learning system. Based on the theoretical framework, the learning phase theory, this dissertation defined strategies to learn from errors in three types: help strategy (requesting worked examples in …
Multi-Period Transportation Network Investment Decision-Making Using Link Ranking And An Econometric Framework, Khademul Haque
Multi-Period Transportation Network Investment Decision-Making Using Link Ranking And An Econometric Framework, Khademul Haque
Electronic Theses and Dissertations Archive
Prospective transportation infrastructure projects take numerous years of planning before they are scheduled for construction. Moreover, limited funds are forcing national, regional and local governments to carefully prioritize their investments. Therefore, reliable quantitative tools are needed to help decision-makers choose their investments so that the allocation of available resources is optimized. Prioritization of projects over a multi-period planning horizon is a difficult task given a limited budget and an exhaustive set of possible combinations of when each project will be scheduled for construction. Although multi-period network investment is studied in the literature, its application by public agencies is limited because …
Effect Of Virtual Reality On Motivation And Achievement Of Middle-School Students, Michelle Bowen
Effect Of Virtual Reality On Motivation And Achievement Of Middle-School Students, Michelle Bowen
Electronic Theses and Dissertations Archive
The introduction of low-cost hand-held devices has provided K-12 educators with the opportunity to teach using virtual reality (VR). However, the efficacy of VR in K-12 classrooms for teaching and learning has not been established. Therefore, the purpose of this quasi-experimental study was to examine the influence of virtual reality field trips on middle-school students social studies academic achievement and motivation. The district chosen for the study is in a rural, economically depressed county, where generational poverty persists. However, the district has a history of being an early adopter of technology. Participants included 76 seventh-grade students at two middle schools, …
Relations Between Reading Motivation And Reading Skills In Students With A Reading Disability, Jennifer Maria Johnson
Relations Between Reading Motivation And Reading Skills In Students With A Reading Disability, Jennifer Maria Johnson
Electronic Theses and Dissertations Archive
The purpose of the present study was to examine the short-term longitudinal relations between two constructs of reading motivation (reading self-concept and value of reading) and two aspects of reading (reading fluency and reading comprehension) in a clinical sample of elementary school students diagnosed with a SLD in reading. Skills in reading fluency and comprehension were assessed by the Gray Oral Reading Tests, Fifth Edition (GORT-5; Wiederholt & Bryant, 2012) and reading motivation was assessed by the Motivation to Read Profile- Revised (MRP-R; Malloy, Marinak, Gambrell, & Mazzoni, 2013). A cross-lag panel analysis was used to examine autoregressive paths (the …
Training Adult Volunteers To Judge In Competitive, Non-Traditional Educational Environments Using Online Learning, Tod Traughber
Training Adult Volunteers To Judge In Competitive, Non-Traditional Educational Environments Using Online Learning, Tod Traughber
Electronic Theses and Dissertations Archive
The purpose of this quasi-experimental study was to examine the comparative change in reported self-efficacy between an experimental group using an interactive, online instructional module and a control group using a traditional handbook. Three research questions were addressed in the study:1. To what extent does completion of an interactive, online training module, as compared to completion of a training manual, affect the self-efficacy of potential volunteer first-time academic competition judges to fulfill their role as a judge after controlling for initial self-efficacy?2. To what extent does completion of an interactive, online training module, as compared to completion of a training …
Chinese Middle And High School Students' Emotion Regulation: Intrapersonal And Interpersonal Approaches, Hui Zhang
Electronic Theses and Dissertations Archive
The overall goal of this dissertation was to examine the adaptivenss of eight emotion regulation strategies for Chinese middle and high school students. The adaptiveness was evaluated by using an intrapersonal approach that focused on individual students in Study 1 and by using an interpersonal approach that focused on same-sex best friend dyads in Study 2. By using an intrapersonal approach, Study 1 found that students chose to use developing competencies, redirecting attention, expressive suppression, and seeking social support more often than the other four strategies. Among the eight emotion regulation strategies, developing competencies was the most adaptive and venting …
Cyclic Performance Improvement Of Existing Steel Semi-Rigid Connections Using Post-Tensioning, Sepehr Movaghati
Cyclic Performance Improvement Of Existing Steel Semi-Rigid Connections Using Post-Tensioning, Sepehr Movaghati
Electronic Theses and Dissertations Archive
A practical retrofitting method for enhancing the inelastic performance of existing semi-rigid steel connections is introduced and verified in this study. The method entails adding high-strength steel strands parallel to the beam, passing them through the column, and anchoring and post-tensioning them properly. To verify the proposed retrofitting system, firstly, a series of semi-rigid bolted connections was experimentally tested under monotonic and cyclic loadings. Then, the post-tensioning system was applied on the connections with the same geometry, and the cyclic responses were studied under different post-tensioning parameters. Following the recommended setup explained in this study, a locally post-tensioned (PT) structural …
Regression Models For Analyzing Clustered Multinomial And Continuous Outcomes Under The Assumption Of Exchangeability, Peter Ogutu Ngutu
Regression Models For Analyzing Clustered Multinomial And Continuous Outcomes Under The Assumption Of Exchangeability, Peter Ogutu Ngutu
Electronic Theses and Dissertations Archive
We derive an expression for the joint distribution of exchangeable multinomial randomvariables and continous random variables for the purpose of analyzing clusteredmultinomial and continous data. In the past such clustered discrete and continous datacould be analyzed with the use of quasi-likelihood procedures and generalized estimatingequations to estimate marginal mean response parameters. Recently, the idea ofexchangeability has been introduced to handle such data but research has focusedprimarily on analysis of clustered binary and continous outcomes. In applications to areassuch as developmental toxicity studies, where discrete and contionus measures arerecorded on each fetus, the discrete data may not necessarily be binary. For …
First Record Of The Yellowfin Soldierfish, Myripristis Chryseresjordan & Evermann, 1903, In The Easter Island Ecoregion, Erin E. Easton, Javier Sellanes, Matthias Gorny
First Record Of The Yellowfin Soldierfish, Myripristis Chryseresjordan & Evermann, 1903, In The Easter Island Ecoregion, Erin E. Easton, Javier Sellanes, Matthias Gorny
School of Earth, Environmental, & Marine Sciences Faculty Publications
Myripristis chryseres Jordan & Evermann, 1903, is recorded for the first time in the Easter Island Ecoregion. Two specimens were observed swimming along a rock cliff and entering a cavern at ∼163 m depth near the peak of Pukao seamount, located ∼85 km (46 nm) west of Easter Island. This report expands the geographic range of M. chryseres eastward by ∼3,800 km and is the first report of the species for the eastern Pacific. It is unclear whether this new record is indicative of a relatively recent range expansion or a lack of visual surveys in the region, which …
Preliminary Multivariate Comparison Of Coral Assemblages On Carbonate Banks In The Western Gulf Of Mexico, Rebekah E. Rodriguez, Erin E. Easton, Thomas C. Shirley, John W. Tunnell, David Hicks
Preliminary Multivariate Comparison Of Coral Assemblages On Carbonate Banks In The Western Gulf Of Mexico, Rebekah E. Rodriguez, Erin E. Easton, Thomas C. Shirley, John W. Tunnell, David Hicks
School of Earth, Environmental, & Marine Sciences Faculty Publications
Hermatypic corals flourished on reefs in the Gulf of Mexico (GOM) in the late Pleistocene and early Holocene. Today, many of these relict reefs are mesophotic banks that have unique coral assemblages and provide critical habitat; however, the South Texas Banks (STB) lack quantitative surveys. Therefore, we used a remotely operated vehicle to conduct quantitative surveys of 5 banks: Baker, Aransas, Dream, Blackfish Ridge, and Harte. Coral communities, based on estimated coral densities (colonies/m2), significantly differed among banks for terraces, slopes, and overall (combined terrace and slope) communities for most banks examined. Within banks, terrace and slope communities significantly differed …
Presenting A Hybrid Processing Mining Framework For Automated Simulation Model Generation, Susan Mckeever, Mohammad Messabah
Presenting A Hybrid Processing Mining Framework For Automated Simulation Model Generation, Susan Mckeever, Mohammad Messabah
Conference papers
Recent advances in information technology systems have enabled organizations to store tremendous amounts of business process data. Process mining offers a range of algorithms and methods to analyze and extract metadata for these processes. This paper presents a novel approach to the hybridization of process mining techniques with business process modelling and simulation methods. We present a generic automated end-to-end simulation framework that produces unbiased simulation models using system event logs. A conceptual model and various meta-data are derived from the logs and used to generate the simulation model. We demonstrate the efficacy of our framework using a business process …
Ball Family Papers - Accession 774, Ball Family
Ball Family Papers - Accession 774, Ball Family
Manuscript Collection
The Ball Family Papers consists of 52 microfiche that covers the operation of several plantations on the Cooper River in the Berkeley County area in South Carolina. The Ball Family Papers consist of correspondence, legal documents, wills and estate papers, plantation papers and slave records, accounts, receipts, genealogical material, plats, and other items pertaining to the Ball family and related families. The collection also includes the papers of John Ball (1760-1817), William James Ball (1787-1808), Ann Simons Ball (1776-1840), John Ball (1782-1834), and William James Ball (1821-1891), as well as the journal (1715-1716) of Captain George Chicken (d. 1727). Also …
Pathways To The Cosmos:The Alignment Of Megalithic Tombs In Ireland And Atlantic Europe, Frank Prendergast, Gabriel Cooney
Pathways To The Cosmos:The Alignment Of Megalithic Tombs In Ireland And Atlantic Europe, Frank Prendergast, Gabriel Cooney
Articles
Gabriel Cooney and Frank Prendergast present the context of and outline the approach to this one-day conference organised by Archaeology Ireland on behalf of the National Monuments Service at the Department of Culture, Heritage and the Gaeltacht and the Office of Public Works to mark the European Year of Cultural Heritage 2018. The event will take place at Dublin Castle on 15 September 2018.