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University of North Texas Digital Scholarship Cooperative

Description: This presentation discusses the University of North Texas (UNT) Digital Scholarship Cooperative. This presentation describes what led to the UNT Digital Scholarship (DS) endeavor and campus planning effort, the aims and different scenarios studied, and the next steps planned.
Date: December 13, 2011
Creator: Halbert, Martin
Partner: UNT Digital Scholarship Cooperative (DiSCo)

Building Energy Simulation Test for Existing Homes (BESTEST-EX)

Description: This presentation discusses the goals of NREL Analysis Accuracy R&D; BESTEST-EX goals; what BESTEST-EX is; how it works; 'Building Physics' cases; 'Building Physics' reference results; 'utility bill calibration' cases; limitations and potential future work. Goals of NREL Analysis Accuracy R&D are: (1) Provide industry with the tools and technical information needed to improve the accuracy and consistency of analysis methods; (2) Reduce the risks associated with purchasing, financing, and selling energy efficiency upgrades; and (3) Enhance software and input collection methods considering impacts on accuracy, cost, and time of energy assessments. BESTEST-EX Goals are: (1) Test software predictions of retrofit energy savings in existing homes; (2) Ensure building physics calculations and utility bill calibration procedures perform up to a minimum standard; and (3) Quantify impact of uncertainties in input audit data and occupant behavior. BESTEST-EX is a repeatable procedure that tests how well audit software predictions compare to the current state of the art in building energy simulation. There is no direct truth standard. However, reference software have been subjected to validation testing, including comparisons with empirical data.
Date: December 1, 2011
Creator: Judkoff, R.; Neymark, J. & Polly, B.
Partner: UNT Libraries Government Documents Department

Current Behavioral and Psychosocial Interventions for HIV/AIDS

Description: This presentation is part of the faculty lecture series UNT Speaks Out on AIDS. This presentation discusses recent directions in psychosocial research on HIV/AIDS in the United States.
Date: December 1, 2011
Creator: Vosvick, Mark A.
Partner: UNT College of Arts and Sciences

Distributed Power Electronics for PV Systems

Description: An overview of the benefits and applications of microinverters and DC power optimizers in residential systems. Some conclusions from this report are: (1) The impact of shade is greater than just the area of shade; (2) Additional mismatch losses include panel orientation, panel distribution, inverter voltage window, soiling; (3) Per-module devices can help increase performance, 4-12% or more depending on the system; (4) Value-added benefits (safety, monitoring, reduced design constraints) are helping their adoption; and (5) The residential market is growing rapidly. Efficiency increases, cost reductions are improving market acceptance. Panel integration will further reduce price and installation cost. Reliability remains an unknown.
Date: December 1, 2011
Creator: Deline, C.
Partner: UNT Libraries Government Documents Department

Geographic Distribution of HIV/AIDS in Texas

Description: This presentation is part of the faculty lecture series UNT Speaks Out on HIV/AIDS. This presentation discusses the geographic distribution of HIV/AIDS in Texas and the associated factors.
Date: December 1, 2011
Creator: Oppong, Joseph R.
Partner: UNT College of Arts and Sciences

HIV and AIDS in sub-Saharan Africa

Description: This presentation is part of the faculty lecture series UNT Speaks Out on HIV/AIDS. This presentation discusses HIV and AIDS in sub-Saharan Africa.
Date: December 1, 2011
Creator: Moore, Ami R.
Partner: UNT College of Public Affairs and Community Service

HIV in Asia: History, Challenges, and Solutions

Description: This presentation is part of the faculty lecture series UNT Speaks Out on HIV/AIDS. This presentation discusses HIV in Asia, including its history, challenges, and solutions.
Date: December 1, 2011
Creator: Chng, Chwee-Lye
Partner: UNT College of Education

Techno-Economics & Life Cycle Assessment

Description: This presentation provides an overview of the techno-economic analysis (TEA) and life cycle assessment (LCA) capabilities at the National Renewable Energy Laboratory (NREL) and describes the value of working with NREL on TEA and LCA.
Date: December 1, 2011
Creator: Dutta, A. & Davis, R.
Partner: UNT Libraries Government Documents Department

Gordon Knox Film Collection: Access to Three Family Collections: How'd We Do It

Description: This presentation discusses the digitization project of the Gordon Knox film collection. The University of North Texas (UNT) Media Library began working with the donors and assessing the project plan for digitizing this collection in 2007 and the films were made available in the UNT Digital Library in 2010. This presentation describes the strategies, initial challenges, processes, and lessons learned from working on this project.
Date: November 19, 2011
Creator: Stanton, Kimberly
Partner: UNT Libraries

Comparison of Battery Life Across Real-World Automotive Drive-Cycles

Description: Laboratories run around-the-clock aging tests to try to understand as quickly as possible how long new Li-ion battery designs will last under certain duty cycles. These tests may include factors such as duty cycles, climate, battery power profiles, and battery stress statistics. Such tests are generally accelerated and do not consider possible dwell time at high temperatures and states-of-charge. Battery life-predictive models provide guidance as to how long Li-ion batteries may last under real-world electric-drive vehicle applications. Worst-case aging scenarios are extracted from hundreds of real-world duty cycles developed from vehicle travel surveys. Vehicles examined included PHEV10 and PHEV40 EDVs under fixed (28 degrees C), limited cooling (forced ambient temperature), and aggressive cooling (20 degrees C chilled liquid) scenarios using either nightly charging or opportunity charging. The results show that battery life expectancy is 7.8 - 13.2 years for the PHEV10 using a nightly charge in Phoenix, AZ (hot climate), and that the 'aggressive' cooling scenario can extend battery life by 1-3 years, while the 'limited' cooling scenario shortens battery life by 1-2 years. Frequent (opportunity) charging can reduce battery life by 1 year for the PHEV10, while frequent charging can extend battery life by one-half year.
Date: November 1, 2011
Creator: Smith, K.; Earleywine, M.; Wood, E. & Pesaran, A.
Partner: UNT Libraries Government Documents Department

Leveraging Intelligent Vehicle Technologies to Maximize Fuel Economy

Description: Advancements in vehicle electronics, along with communication and sensing technologies, have led to a growing number of intelligent vehicle applications. Example systems include those for advanced driver information, route planning and prediction, driver assistance, and crash avoidance. The National Renewable Energy Laboratory is exploring ways to leverage intelligent vehicle systems to achieve fuel savings. This presentation discusses several potential applications, such as providing intelligent feedback to drivers on specific ways to improve their driving efficiency, and using information about upcoming driving to optimize electrified vehicle control strategies for maximum energy efficiency and battery life. The talk also covers the potential of Advanced Driver Assistance Systems (ADAS) and related technologies to deliver significant fuel savings in addition to providing safety and convenience benefits.
Date: November 1, 2011
Creator: Gonder, J.
Partner: UNT Libraries Government Documents Department

National Status of Data Management: The DataRes and CLIR/Sloan Research Projects on Data Management Policies and Practices

Description: Presentation discussing the DataRes and the CLIR/Sloan Research Projects on data management policies and practices. This presentation discusses these two collaborating projects researching emerging policies and practices in data management. These research projects are being undertaken by the Council on Library and Information Resources and the University of North Texas (UNT).
Date: November 1, 2011
Creator: Halbert, Martin
Partner: UNT Libraries

NREL/CCSE PEV Battery Second Use Project

Description: This presentation discusses the NREL/CCSE PEV battery second use project.
Date: November 1, 2011
Creator: Neubauer, J. & Pesaran, A.
Partner: UNT Libraries Government Documents Department

Cultural Memory and Heirloom Seeds: The Foundation of Local Food Systems

Description: This presentation is part of the faculty lecture series UNT Speaks Out on the Food We Eat. This presentation discusses heirloom seeds and covers information about the Foundation of Local Food Systems.
Date: October 24, 2011
Creator: Veteto, James R.
Partner: UNT College of Public Affairs and Community Service

What's Wrong with Processed Food?

Description: This presentation is part of the faculty lecture series UNT Speaks Out on the Food We Eat. The topics include what processed food is, genetically-modified foods, functional foods, and the impacts of processed foods.
Date: October 24, 2011
Creator: Kaplan, David M.
Partner: UNT College of Arts and Sciences

TRAC, FDSys and putting it all together

Description: This presentation discusses TRAC, an open source web-based project management and bug tracking system, and the Federated Digital System (FDSys), an advanced digital system that authenticates, preserves, versions, and provides permanent public access to federal government information.
Date: October 18, 2011
Creator: Phillips, Mark Edward
Partner: UNT Libraries

NCLB: The Myth, The History, The Reality

Description: This presentation is part of the faculty lecture series UNT Speaks Out on No Child Left Behind. In this presentation, the author discusses the law's impact on curricula and student learning, particularly in mathematics.
Date: October 5, 2011
Creator: Tunks, Jeanne L.
Partner: UNT College of Education

Allocating Variability and Reserve Requirements

Description: This presentation describes how you could conceivably allocate variability and reserve requirements, including how to allocate aggregation benefits. Conclusions of this presentation are: (1) Aggregation provides benefits because individual requirements are not 100% correlated; (2) Method needed to allocate reduced requirement among participants; (3) Differences between allocation results are subtle - (a) Not immediately obvious which method is 'better'; (b) Many are numerically 'correct', they sum to the physical requirement; (c) Many are not 'fair', Results depend on sub-aggregation and/or the order individuals are included; and (4) Vector allocation method is simple and fair.
Date: October 1, 2011
Creator: Kirby, B.; King, J. & Milligan, M.
Partner: UNT Libraries Government Documents Department

Energy Storage Management for VG Integration

Description: This presentation describes how you economically manage integration costs of storage and variable generation.
Date: October 1, 2011
Creator: Kirby, B.
Partner: UNT Libraries Government Documents Department

Geopressured Geothermal Resource and Recoverable Energy Estimate for the Wilcox and Frio Formations, Texas

Description: An estimate of the total and recoverable geopressured geothermal resource of the fairways in the Wilcox and Frio formations is made using the current data available. The flow rate of water and methane for wells located in the geopressured geothermal fairways is simulated over a 20-year period utilizing the TOUGH2 Reservoir Simulator and research data. The model incorporates relative permeability, capillary pressure, rock compressibility, and leakage from the bounding shale layers. The simulations show that permeability, porosity, pressure, sandstone thickness, well spacing, and gas saturation in the sandstone have a significant impact on the percent of energy recovered. The results also predict lower average well production flow rates and a significantly higher production of natural gas relative to water than in previous studies done from 1975 to 1980. Previous studies underestimate the amount of methane produced with hot brine. Based on the work completed in this study, multiphase flow processes and reservoir boundary conditions greatly influence the total quantity of the fluid produced as well as the ratio of gas and water in the produced fluid.
Date: October 1, 2011
Creator: Esposito, A. & Augustine, C.
Partner: UNT Libraries Government Documents Department

Introduction to the UNT Digital Collections

Description: Presentation on the University of North Texas (UNT) Digital Library and The Portal to Texas History. The topics include featured collections in The Portal to Texas History and in the UNT Digital Library, and the special collections of maps and their features and usage.
Date: October 1, 2011
Creator: Tarver, Hannah
Partner: UNT Libraries
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