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Wildlife Monitoring
This presentation discusses research on solar powered wildlife monitoring systems. The goal of the project was to develop an off grid video system using solar power for collecting visual data of the burrowing owl roosting behavior in the West Texas region.
Date:
July 28, 2013
Creator:
Jones, Raechelle; Meyer, Chelsea; Wolf, Lori; Williams, Jennifer & Acevedo, Miguel F.
System:
The UNT Digital Library
Indoor Air Quality: COâ‚‚ Sensors and Demand Controlled Ventilation
This presentation discusses research on indoor air quality (IAQ) and building a small IAQ control system using Arduino microcontroller board and micro gas sensors (CO2, O3, etc.). This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Date:
July 28, 2013
Creator:
Parsons, David; Jordan, Georgette; Cheggwidden, Dawn; Li, Xinrong; Thompson, Ruthanne & Abraham, Sherin
System:
The UNT Digital Library
Performance and Reliability of Interface Materials for Automotive Power Electronics
Thermal management and reliability are important because excessive temperature can degrade the performance, life, and reliability of power electronics and electric motors. Advanced thermal management technologies enable keeping temperature within limits; higher power densities; and lower cost materials, configurations and systems. Thermal interface materials, bonded interface materials and the reliability of bonded interfaces are discussed in this presentation.
Date:
July 1, 2013
Creator:
Narumanchi, S.; DeVoto, D.; Mihalic, M. & Paret, P.
System:
The UNT Digital Library
Novel Scanning Lens Instrument for Evaluating Fresnel Lens Performance: Equipment Development and Initial Results
A system dedicated to the optical transmittance characterization of Fresnel lenses has been developed at NREL, in collaboration with the UPM. The system quantifies the optical efficiency of the lens by generating a performance map. The shape of the focused spot may also be analyzed to understand change in the lens performance. The primary instrument components (lasers and CCD detector) have been characterized to confirm their capability for performing optical transmittance measurements. Measurements performed on SoG and PMMA lenses subject to a variety of indoor conditions (e.g., UV and damp heat) identified differences in the optical efficiency of the evaluated lenses, demonstrating the ability of the Scanning Lens Instrument (SLI) to distinguish between the aged lenses.
Date:
July 1, 2013
Creator:
Herrero, R.; Miller, D. C.; Kurtz, S. R.; Anton, I. & Sala, G.
System:
The UNT Digital Library
Thermal Performance and Reliability of Bonded Interfaces for Power Electronics Packaging Applications
This presentation discusses the thermal performance and reliability of bonded interfaces for power electronics packaging applications.
Date:
July 1, 2013
Creator:
Devoto, D.
System:
The UNT Digital Library
Light-Weight, Single-Phase, Liquid-Cooled Cold Plate
This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.
Date:
July 1, 2013
Creator:
Narumanchi, S.
System:
The UNT Digital Library
Light-Weight, Low-Cost, Single-Phase, Liquid-Cooled Cold Plate
This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.
Date:
July 1, 2013
Creator:
Narumanchi, S.
System:
The UNT Digital Library
Wind Turbine Drivetrain Condition Monitoring - An Overview
High operation and maintenance costs still hamper the development of the wind industry despite its quick growth worldwide. To reduce unscheduled downtime and avoid catastrophic failures of wind turbines and their components have been and will be crucial to further raise the competitiveness of wind power. Condition monitoring is one of the key tools for achieving such a goal. To enhance the research and development of advanced condition monitoring techniques dedicated to wind turbines, we present an overview of wind turbine condition monitoring, discuss current practices, point out existing challenges, and suggest possible solutions.
Date:
July 1, 2013
Creator:
Sheng, S. & Yang, W.
System:
The UNT Digital Library
Report on Wind Turbine Subsystem Reliability - A Survey of Various Databases
Wind industry has been challenged by premature subsystem/component failures. Various reliability data collection efforts have demonstrated their values in supporting wind turbine reliability and availability research & development and industrial activities. However, most information on these data collection efforts are scattered and not in a centralized place. With the objective of getting updated reliability statistics of wind turbines and/or subsystems so as to benefit future wind reliability and availability activities, this report is put together based on a survey of various reliability databases that are accessible directly or indirectly by NREL. For each database, whenever feasible, a brief description summarizing database population, life span, and data collected is given along with its features & status. Then selective results deemed beneficial to the industry and generated based on the database are highlighted. This report concludes with several observations obtained throughout the survey and several reliability data collection opportunities in the future.
Date:
July 1, 2013
Creator:
Sheng, S.
System:
The UNT Digital Library
Reliability of Bonded Interfaces
Presentation details the thermal performance and the reliability of electrical interconnects.
Date:
July 1, 2013
Creator:
DeVoto, D.
System:
The UNT Digital Library
Integrated Vehicle Thermal Management - Combining Fluid Loops in Electric Drive Vehicles
Plug-in hybrid electric vehicles and electric vehicles have increased vehicle thermal management complexity, using separate coolant loop for advanced power electronics and electric motors. Additional thermal components result in higher costs. Multiple cooling loops lead to reduced range due to increased weight. Energy is required to meet thermal requirements. This presentation for the 2013 Annual Merit Review discusses integrated vehicle thermal management by combining fluid loops in electric drive vehicles.
Date:
July 1, 2013
Creator:
Rugh, J. P.
System:
The UNT Digital Library
Electric Vehicle Battery Thermal Issues and Thermal Management Techniques
This presentation examines the issues concerning thermal management in electric drive vehicles and management techniques for improving the life of a Li-ion battery in an EDV.
Date:
July 1, 2013
Creator:
Rugh, J. P.; Pesaran, A. & Smith, K.
System:
The UNT Digital Library
Microgrid V2G Charging Station Interconnection Testing
This presentation by Mike Simpson of the National Renewable Energy Laboratory (NREL) describes NREL's microgrid vehicle-to-grid charging station interconnection testing.
Date:
July 1, 2013
Creator:
Simpson, M.
System:
The UNT Digital Library
Offshore Wind Energy Market Overview
This presentation describes the current international market conditions regarding offshore wind, including the breakdown of installation costs, how to reduce costs, and the physical siting considerations considered when planning offshore wind construction. The presentation offers several examples of international existing and planned offshore wind farm sites and compares existing international offshore resources with U.S. resources. The presentation covers future offshore wind trends and cites some challenges that the United States must overcome before it will be able to fully develop offshore wind sites.
Date:
July 1, 2013
Creator:
Baring-Gould, I.
System:
The UNT Digital Library
Two-Phase Cooling of Power Electronics
Presentation details two-phase cooling of power electronics.
Date:
July 1, 2013
Creator:
Moreno, G.
System:
The UNT Digital Library
Diffusion of Scientific Knowledge in Agriculture: The Case for Africa [Presentation]
Presentation for the International Association of Agriculture Information Specialists (IAALD) World Congress. The authors discuss the diffusion of scientific knowledge on agriculture for Africa.
Date:
July 2013
Creator:
Assefa, Shimelis; Alemneh, Daniel Gelaw & Rorissa, Abebe
System:
The UNT Digital Library
Moodle for Professional Development to Agricultural Extension Professionals in Africa: Workshop
Presentation for the International Association of Agriculture Information Specialists (IAALD) World Congress. The authors discuss the Modular Object-Oriented Dynamic Learning Environment (Moodle) software package and its use for professional development to agriculture extension professionals in Africa.
Date:
July 2013
Creator:
Assefa, Shimelis; Alemneh, Daniel Gelaw & Rorissa, Abebe
System:
The UNT Digital Library
Implementing Name Authority Control into Institutional Repositories: A Staged Approach
This presentation discusses name authority for institutional repositories. It gives an overview of some major initiatives in name authority and outlines the staged approach taken by the UNT Libraries.
Date:
July 9, 2013
Creator:
Phillips, Mark Edward
System:
The UNT Digital Library
CSLA Gets Social with Facebook and Twitter
Presentation for the 2013 Church and Synagogue Library Association (CSLA) Annual Conference. Timely CSLA information is available through social media and provides members another avenue of communication. This presentation discusses how easy it is for members to learn to use Twitter and Facebook for keeping up to date on library issues and promoting libraries.
Date:
July 29, 2013
Creator:
Cutchin, Cheryl; Hartsock, Ralph & Shufeldt, Pat
System:
The UNT Digital Library
Riding the Restriction Wave at the University of North Texas: Comparing IR and ProQuest Embargoes
Presentation for United States Electronic Thesis and Dissertations Association (USETDA) conference. The authors discuss comparing institutional repository and ProQuest embargoes.
Date:
July 2013
Creator:
Kleister, Jill; Alemneh, Daniel Gelaw & Short, Daniel
System:
The UNT Digital Library