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Articles 2011 - 2040 of 95668
Full-Text Articles in Entire DC Network
Unh Climatologist Available To Discuss One-Year Anniversary Of Ice Storm, Lori Wright
Unh Climatologist Available To Discuss One-Year Anniversary Of Ice Storm, Lori Wright
Media Relations
No abstract provided.
Brown, Carol P. - Collector (Sc 2105), Manuscripts & Folklife Archives
Brown, Carol P. - Collector (Sc 2105), Manuscripts & Folklife Archives
Manuscript Collection Finding Aids
Finding aid and print (attached as an additional file) for Manuscripts Small Collection 2105. Collaborative set of three signed poems by Jim Wayne Miller and an Ivan Schieferdecker art print titled "Late Fall" (numbered 77/100 and signed), along with the typescript of another signed poem by Miller. Also includes a promotional piece for the set.
Daily Eastern News: December 09, 2009, Eastern Illinois University
Daily Eastern News: December 09, 2009, Eastern Illinois University
December
No abstract provided.
Comparative Study Of Population Based Techniques For Power System Stabilizer Design, Pinaki Mitra, Chuan Yan, Lisa Grant, Ganesh K. Venayagamoorthy, Komla Folly
Comparative Study Of Population Based Techniques For Power System Stabilizer Design, Pinaki Mitra, Chuan Yan, Lisa Grant, Ganesh K. Venayagamoorthy, Komla Folly
Electrical and Computer Engineering Faculty Research & Creative Works
Power System Stabilizers (PSSs) are used in interconnected power systems in order to mitigate low frequency oscillations. the comparison of the performances of four advanced population-based techniques in tuning the parameters of PSS in a three-machine-nine-bus test system is presented in this paper. the algorithms considered in this paper are A) Differential Evolution based Particle Swarm Optimization (DEPSO), b) Modified Clonal Selection Algorithm (MCSA), c) Small Population based Particle Swarm Optimization (SPPSO) and d) Population based Incremental Learning (PBIL). the comparative study is focused on the frequency domain performances. It is observed that MCSA is performing better than the other …
Short To Medium Range Time Series Prediction Of Solar Irradiance Using An Echo State Network, Stephen M. Ruffing, Ganesh K. Venayagamoorthy
Short To Medium Range Time Series Prediction Of Solar Irradiance Using An Echo State Network, Stephen M. Ruffing, Ganesh K. Venayagamoorthy
Electrical and Computer Engineering Faculty Research & Creative Works
An Echo State Network (ESN) can make multi-step predictions since it can process temporal information without the training difficulties encountered by conventional recurrent neural networks. an ESN is applied in this paper to make multistep predictions of solar irradiance, 30 minutes to 270 minutes into the future. the ESN is trained and tested using two performance metrics (correlation coefficient and mean squared error) on meteorological and solar data recorded at the National Renewable Energy Laboratory Solar Radiation Research Laboratory in Golden, Colorado. When feedback of target outputs is utilized, an improvement is seen for the first performance metric, while no …
Comparison Of Enhanced-Pso And Classical Optimization Methods: A Case Study For Statcom Placement, Yamille Del Valle, Ronald G. Harley, Ganesh K. Venayagamoorthy
Comparison Of Enhanced-Pso And Classical Optimization Methods: A Case Study For Statcom Placement, Yamille Del Valle, Ronald G. Harley, Ganesh K. Venayagamoorthy
Electrical and Computer Engineering Faculty Research & Creative Works
This paper validates the effectiveness of an enhanced particle swarm optimizer (Enhanced-PSO) method in solving the problem of optimal allocation of FACTS devices in a power system. the performance of the Enhanced-PSO method is compared with classical optimization approaches using a simple but realistic case study of optimal allocation of STATCOM devices, considering steady state and economic criteria. This paper also discusses the concepts and details about the optimization process that tend to be overlooked in the literature since the selection of an optimization algorithm highly depends on them. © 2009 IEEE.
Heuristic Algorithms For Solving Convex And Nonconvex Economic Dispatch, Yusuf Yare, Ganesh K. Venayagamoorthy, Ahmed Yousuf Saber
Heuristic Algorithms For Solving Convex And Nonconvex Economic Dispatch, Yusuf Yare, Ganesh K. Venayagamoorthy, Ahmed Yousuf Saber
Electrical and Computer Engineering Faculty Research & Creative Works
Economic dispatch (ED) is a power system optimization problem, and its objective is to reduce the total generation cost of units while satisfying constraints. the presence of nonlinearities in practical generator operation makes solving the ED problem more challenging. These generator nonlinearities are modeled as constraints to be met in the form of ramp-rate limits and prohibited operating zones. This paper proposes three heuristic algorithms, namely, the genetic algorithm (GA), differential evolution (DE) and modified particle swarm optimization (MPSO) to solve this ED problem for two test systems. Simulation, numerical results and convergence performances of these three algorithms are presented …
Campus Chronicle, Kelsey Edwards, Mandy Bornhoft, Jake Flatness, Mitch Holland, Mariah Mack, Ryan Stanek, Heather Benson, Julie Roosa
Campus Chronicle, Kelsey Edwards, Mandy Bornhoft, Jake Flatness, Mitch Holland, Mariah Mack, Ryan Stanek, Heather Benson, Julie Roosa
Campus Chronicle
No abstract provided.
New Gunsight Improves Marksmanship With Intuitive Aim, Says Uab Vision Scientist, Staff
New Gunsight Improves Marksmanship With Intuitive Aim, Says Uab Vision Scientist, Staff
Browse All News
No abstract provided.
Uab Visual Arts Gallery Upcoming Exhibitions, Staff
Uab Visual Arts Gallery Upcoming Exhibitions, Staff
Browse All News
No abstract provided.
The Daily Egyptian, December 09, 2009, Daily Egyptian Staff
The Daily Egyptian, December 09, 2009, Daily Egyptian Staff
December 2009
No abstract provided.
Large-Scale Distributed Coalition Formation, Daniel R. Karrels
Large-Scale Distributed Coalition Formation, Daniel R. Karrels
Theses and Dissertations
The CyberCraft project is an effort to construct a large scale Distributed Multi-Agent System (DMAS) to provide autonomous Cyberspace defense and mission assurance for the DoD. It employs a small but flexible agent structure that is dynamically reconfigurable to accommodate new tasks and policies. This document describes research into developing protocols and algorithms to ensure continued mission execution in a system of one million or more agents, focusing on protocols for coalition formation and Command and Control. It begins by building large-scale routing algorithms for a Hierarchical Peer to Peer structured overlay network, called Resource-Clustered Chord (RC-Chord). RC-Chord introduces the …
Performance Analysis Of Live-Virtual-Constructive And Distributed Virtual Simulations: Defining Requirements In Terms Of Temporal Consistency, Douglas D. Hodson
Performance Analysis Of Live-Virtual-Constructive And Distributed Virtual Simulations: Defining Requirements In Terms Of Temporal Consistency, Douglas D. Hodson
Theses and Dissertations
This research extends the knowledge of live-virtual-constructive (LVC) and distributed virtual simulations (DVS) through a detailed analysis and characterization of their underlying computing architecture. LVCs are characterized as a set of asynchronous simulation applications each serving as both producers and consumers of shared state data. In terms of data aging characteristics, LVCs are found to be first-order linear systems. System performance is quantified via two opposing factors; the consistency of the distributed state space, and the response time or interaction quality of the autonomous simulation applications. A framework is developed that defines temporal data consistency requirements such that the objectives …
Electromagnetic Field Control And Optimization Using Metamaterials, Jeffrey S. Mcguirk
Electromagnetic Field Control And Optimization Using Metamaterials, Jeffrey S. Mcguirk
Theses and Dissertations
Transformation optics has shown the ability to cloak an object from incident electromagnetic radiation is possible. However, the material parameters are inhomogeneous, anisotropic, and, in some instances, singular at various locations. In order for a cloak to be practically realized, simplified parameter sets are required. However, the simplified parameters result in a degradation in the cloaking function. Constitutive parameters for simplified two-dimensional cylindrical cloaks have been developed with two material property constraints. It was initially believed satisfying these two constraints would result in the simplified cylindrical cloaks having the same wave equation as an ideal cloak. Because of this error, …
A Physical Model Of Human Skin And Its Application For Search And Rescue, Abel S. Nunez
A Physical Model Of Human Skin And Its Application For Search And Rescue, Abel S. Nunez
Theses and Dissertations
For this research we created a human skin reflectance model in the VIS and NIR. We then modeled sensor output for an RGB sensor based on output from the skin reflectance model. The model was also used to create a skin detection algorithm and a skin pigmentation level (skin reflectance at 685nm) estimation algorithm. The average root mean square error across the VIS and NIR between the skin reflectance model and measured data was 2%. The skin reflectance model then allowed us to generate qualitatively accurate responses for an RGB sensor for different biological and lighting conditions. To test the …
Discrete Film Cooling In A Rocket With Curved Walls, Jonathan F. Mccall
Discrete Film Cooling In A Rocket With Curved Walls, Jonathan F. Mccall
Theses and Dissertations
This study quantified the effects of discrete wall-based film cooling in a rocket with curved walls. Simulations and experiments showed decreasing with wall radius of curvature, holding jet diameter constant, improves net heat flux reduction (NHFR) and adiabatic effectiveness (η) for 90˚ compound injected cylindrical jets, though η is reduced at the highest curvature. NHFR and η improved further with a high favorable stream-wise pressure gradient (K=2.1x10-5) at all tested blowing ratios, but were affected little by a high density ratio (DR=1.76) using carbon dioxide as the coolant. Experiments were run at a Reynolds number of 31K and …
Fatigue Behavior Of An Advanced Sic/Sic Composite At Elevated Temperature In Air And In Steam, Devon T. Christensen
Fatigue Behavior Of An Advanced Sic/Sic Composite At Elevated Temperature In Air And In Steam, Devon T. Christensen
Theses and Dissertations
The fatigue behavior of an advanced Silicon Carbide/Silicon Carbide (SiC/SiC) ceramic matrix composite (CMC) was investigated at 1200 ˚C in laboratory air and in steam environments. The composite consisted of a SiC matrix reinforced with Boron Nitride (BN) coated Hi-Nicalon fibers woven into eight-harness-satin (8HS) weave plies. Tensile stress-strain behavior and tensile properties were also evaluated at 1200 ˚C. Tension-tension fatigue tests were conducted in both laboratory air and in steam at 1200 ˚C at frequencies of 0.1 Hz, 1.0 Hz, and 10 Hz. The tension-tension fatigue tests had a ratio of minimum stress to maximum stress of R = …
Flow Visualization Study Of Passive Flow Control Features On A Film-Cooled Turbine Blade Leading Edge, Daniel R. Carroll
Flow Visualization Study Of Passive Flow Control Features On A Film-Cooled Turbine Blade Leading Edge, Daniel R. Carroll
Theses and Dissertations
A flow visualization study was conducted on a model of a film-cooled turbine blade leading edge in a closed-loop water channel at ReD = 30k. The model consisted of an 8.89 cm diameter half-cylinder with flat afterbody joined at the ninety degree point. A single radial coolant hole (dc / D = 0.054) drilled 21.5° from the stagnation line, angled 20° to the surface and 90° to the flow direction generated a coolant jet transverse to the freestream. Water channel testing assessed the hydrodynamic effects of 16 passive flow control features, to include a variety of …
An Empirical Methodology For Engineering Human Systems Integration, Nicholas S. Hardman
An Empirical Methodology For Engineering Human Systems Integration, Nicholas S. Hardman
Theses and Dissertations
The systems engineering technical processes are not sufficiently supported by methods and tools that quantitatively integrate human considerations into early system design. Because of this, engineers must often rely on qualitative judgments or delay critical decisions until late in the system lifecycle. Studies reveal that this is likely to result in cost, schedule, and performance consequences. This dissertation presents a methodology to improve the application of systems engineering technical processes for design. This methodology is mathematically rigorous, is grounded in relevant theory, and applies extant human subjects data to critical systems development challenges. The methodology is expressed in four methods …
Tailored Systems Architecture For Design Of Space Science And Technology Missions Using Dodaf V2.0, Nicholas J. Merski
Tailored Systems Architecture For Design Of Space Science And Technology Missions Using Dodaf V2.0, Nicholas J. Merski
Theses and Dissertations
The use of systems architecture, following a set of integrated descriptions from an architecture framework, has been well codified in Department of Defense acquisition and systems engineering. However, in the Space Science and Technology (S&T) community, this guidance and practice is not commonly adopted. This paper outlines an approach to leverage the changes made in DoD Architecture Framework 2.0 (DoDAF2.0), and the renewed emphasis on data and support to acquisition decision analysis. After decomposing the Space S&T design lifecycle into phases, design milestones and activities using process models, a set of DoDAF prescribed and Fit-for-Purpose views are constructed into a …
Midwave Infrared Imaging Fourier Transform Spectrometry Of Combustion Plumes, Kenneth C. Bradley
Midwave Infrared Imaging Fourier Transform Spectrometry Of Combustion Plumes, Kenneth C. Bradley
Theses and Dissertations
A midwave infrared (MWIR) imaging Fourier transform spectrometer (IFTS) was used to successfully capture and analyze hyperspectral imagery of combustion plumes. Jet engine exhaust data from a small turbojet engine burning diesel fuel at a flow rate of 300 cm3/min was collected at 1 cm−1 resolution from a side-plume vantage point on a 200x64 pixel window at a range of 11.2 meters. Spectral features of water, CO, and CO2 were present, and showed spatial variability within the plume structure. An array of thermocouple probes was positioned within the plume to aid in temperature analysis. A single-temperature …
Shirley, James Kelly (Fa 474), Manuscripts & Folklife Archives
Shirley, James Kelly (Fa 474), Manuscripts & Folklife Archives
Folklife Archives Finding Aids
Finding aid only for Folklife Archives Project 474. A term project prepared by James Kelly Shirley on Cora Mae Howard for a Western Kentucky University history class titled "The Negro in American History."
Banner News, Candace Daiker, Dale Walker, Eric Thiel, Derrick J. Roffman, Jamie Stueve, Chelsea Magee, Shannon Jefferson, Brad Burton, Tanner Sandrock, Elliott Davis, Austin Leeds
Banner News, Candace Daiker, Dale Walker, Eric Thiel, Derrick J. Roffman, Jamie Stueve, Chelsea Magee, Shannon Jefferson, Brad Burton, Tanner Sandrock, Elliott Davis, Austin Leeds
Banner News
No abstract provided.
Comments On Expanding Civic Participation In Voting By Expanded Use Of The Internet, Candice Hoke
Comments On Expanding Civic Participation In Voting By Expanded Use Of The Internet, Candice Hoke
Law Faculty Presentations and Testimony
Hoke's comments to the FCC on expanding civic participation in voting by expanded use of the Internet. Hoke recommends that the FCC not become involved in election regulatory issues concerning the Internet, but will support a different federal regulatory agency with national security and technical-cybersecurity expertise receiving primary jurisdiction over election cybersecurity.
Interactive Football Summarization, Brandon B. Moon
Interactive Football Summarization, Brandon B. Moon
Theses and Dissertations
Football fans do not have the time to watch every game in its entirety and need an effective solution that summarizes them the story of the game. Human-generated summaries are often too short, requiring time and resources to create. We utilize the advantages of Interactive TV to create an automatic football summarization service that is cohesive, provides context, covers the necessary plays, and is concise. First, we construct a degree of interest function that ranks each play based on detailed, play-by-play game events as well as viewing statistics collected from an interactive viewing environment. This allows us to select the …
An Exploratory Study Of The Effect Of Instruction On Student, Gladys E. Vint
An Exploratory Study Of The Effect Of Instruction On Student, Gladys E. Vint
Theses and Dissertations
Although substantial research has been conducted regarding the instruction of reading, students are still not reaching a desired level of reading competency (Snow, Burns, & Griffin, 1998). The Reading First program was established to address this dilemma. In order to examine the impact the Reading First method of teaching reading had on the schools in Arkansas, a population was identified and classified into four categories: funded Reading First and non-funded Reading First, and matched control groups for both funded and non-funded. These schools were followed for three years, first grade through the third grade year, by obtaining achievement data obtained …
Jasper, Cindy Rhea (Fa 129), Manuscripts & Folklife Archives
Jasper, Cindy Rhea (Fa 129), Manuscripts & Folklife Archives
Folklife Archives Finding Aids
Finding aid and full-text scan of paper (Click on “Additional Files” below) for Folklife Archives Project 129. Paper: "Folklore in the Mass Media" written by Cindy Rhea Jasper for a folk studies class at Western Kentucky University. Includes examples of folk sayings, songs, games, proverbs, and traditional images in advertisements found in "Ladies Home Journal," February 1981 to February 1982. Includes photocopies of 56 magazine ads.
Kindred, Gayle (Fa 126), Manuscripts & Folklife Archives
Kindred, Gayle (Fa 126), Manuscripts & Folklife Archives
Folklife Archives Finding Aids
Finding aid and full-text scan of paper (Click on “Additional Files” below) for Folklife Archives Project 126. Paper: "Mail or artwork?" written by Gayle Kindred for a Folk Studies class at Western Kentucky University. Includes a collection and description of stylized mail received by students at Western Kentucky University, 1985-1986.
The Lumberjack, December 09, 2009
The Lumberjack, December 09, 2009
Cal Poly Humboldt's Student Newspaper
The student newspaper of Humboldt State University.
Aasu Men's Golf Inks Three Early Signees For 2010-11, Armstrong State University
Aasu Men's Golf Inks Three Early Signees For 2010-11, Armstrong State University
Armstrong Athletics: Men's Golf News (Archived)
No abstract provided.