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7.5 Minute Quadrangle Project

Description: Presentation for the 2010 Depository Library Council Annual Meeting. This presentation discusses the 7.5 minute quadrangle project by the University of North Texas (UNT) Libraries' Digital Projects Unit and gives the background, goals, processes, challenges, and next steps.
Date: October 18, 2010
Creator: Phillips, Mark Edward
Partner: UNT Libraries

[2010 Tea on Tuesday group photo 1]

Description: A photograph of the people gathered for the 2010 Tea on Tuesday event hosted by the Multicultural Center. Olga Grieco is at the front of the group and is holding a Certificate of Recognition that she received at the event.
Date: March 9, 2010
Creator: University of North Texas. Multicultural Center.
Partner: UNT Libraries Special Collections

3D Thermal and Electrochemical Model for Spirally Wound Large Format Lithium-ion Batteries

Description: In many commercial cells, long tabs at both cell sides, leading to uniform potentials along the spiral direction of wound jelly rolls, are rarely seen because of their high manufacturing cost. More often, several metal strips are welded at discrete locations along both current collector foils. With this design, the difference of electrical potentials is easily built up along current collectors in the spiral direction. Hence, the design features of the tabs, such as number, location and size, can be crucial factors for spiral-shaped battery cells. This paper presents a Li-ion battery cell model having a 3-dimensional spiral mesh involving a wound jellyroll structure. Further results and analysis will be given regarding impacts of tab location, number, and size.
Date: October 14, 2010
Creator: Lee, K. J.; Kim, G. H. & Smith, K.
Partner: UNT Libraries Government Documents Department

Accelerating Design of Batteries Using Computer-Aided Engineering Tools

Description: Computer-aided engineering (CAE) is a proven pathway, especially in the automotive industry, to improve performance by resolving the relevant physics in complex systems, shortening the product development design cycle, thus reducing cost, and providing an efficient way to evaluate parameters for robust designs. Academic models include the relevant physics details, but neglect engineering complexities. Industry models include the relevant macroscopic geometry and system conditions, but simplify the fundamental physics too much. Most of the CAE battery tools for in-house use are custom model codes and require expert users. There is a need to make these battery modeling and design tools more accessible to end users such as battery developers, pack integrators, and vehicle makers. Developing integrated and physics-based CAE battery tools can reduce the design, build, test, break, re-design, re-build, and re-test cycle and help lower costs. NREL has been involved in developing various models to predict the thermal and electrochemical performance of large-format cells and has used in commercial three-dimensional finite-element analysis and computational fluid dynamics to study battery pack thermal issues. These NREL cell and pack design tools can be integrated to help support the automotive industry and to accelerate battery design.
Date: November 1, 2010
Creator: Pesaran, A.; Kim, G. H. & Smith, K.
Partner: UNT Libraries Government Documents Department

Adopt-A-Molecule: A guided Inquiry for Increasing Student Interest in Organic Chemistry [Presentation]

Description: Presentation for the 2010 University Scholars Day at the University of North Texas. This presentation discusses research on the Adopt-A-Molecule project, a 9-week long, two-part term project, undertaken by students enrolled in the first of the two-semester sequence in organic chemistry (Fall 2009).
Date: April 15, 2010
Creator: Musgrave, Paul & Dandekar, Sushama Ashok
Partner: UNT Honors College

[Allison Fudge Garcia speaking]

Description: Photograph of Allison Fudge Garcia, a Teach North Texas student, standing behind a podium and holding a green ribbon in her hand. The speaker from earlier is standing to the side by a doorway to the outside. They are at the UNT College of Education Grad Banquet.
Date: November 29, 2010
Creator: Reynolds, Jonathan
Partner: UNT Libraries Special Collections

Alternations of Structure and Functional Activity of Below Ground Microbial Communities at Elevated Atmospheric Carbon Dioxide

Description: The global atmospheric concentration of CO2 has increased by more than 30percent since the industrial revolution. Although the stimulating effects of elevated CO2 (eCO2) on plant growth and primary productivity have been well studied, its influences on belowground microbial communities are poorly understood and controversial. In this study, we showed a significant change in the structure and functional potential of soil microbial communities at eCO2 in a grassland ecosystem, the BioCON (Biodiversity, CO2 and Nitrogen) experimental site (http://www.biocon.umn.edu/) using a comprehensive functional gene array, GeoChip 3.0, which contains about 28,0000 probes and covers approximately 57,000 gene variants from 292 functional gene families involved in carbon, nitrogen, phosphorus and sulfur cycles as well as other functional processes. GeoChip data indicated that the functional structure of microbial communities was markedly different between ambient CO2 (aCO2) and eCO2 by detrended correspondence analysis (DCA) of all 5001 detected functional gene probes although no significant differences were detected in the overall microbial diversity. A further analysis of 1503 detected functional genes involved in C, N, P, and S cycles showed that a considerable portion (39percent) of them were only detected under either aCO2 (14percent) or eCO2 (25percent), indicating that the functional characteristics of the microbial community were significantly altered by eCO2. Also, for those shared genes (61percent) detected, some significantly (p<0.05) changed their abundance at eCO2. Especially, genes involved in labile C degradation, such as amyA, egl, and ara for starch, cellulose, and hemicelluloses, respectively, C fixation (e.g., rbcL, pcc/acc), N fixation (nifH), and phosphorus utilization (ppx) were significantly increased under eCO2, while those involved in decomposing recalcitrant C, such as glx, lip, and mnp for lignin degradation remained unchanged. This study provides insights into our understanding of belowground microbial communities and their feedbacks to terrestrial ecosystems at eCO2.
Date: May 17, 2010
Creator: He, Zhili; Xu, Meiying; Deng, Ye; Kang, Sanghoon; Wu, Liyou; Van Nostrand, Joy D. et al.
Partner: UNT Libraries Government Documents Department

Analysis of Hydrogen and Competing Technologies for Utility-Scale Energy Storage

Description: Presentation about the National Renewable Energy Laboratory's analysis of hydrogen energy storage scenarios, including analysis framework, levelized cost comparison of hydrogen and competing technologies, analysis results, and conclusions drawn from the analysis.
Date: February 11, 2010
Creator: Steward, D.
Partner: UNT Libraries Government Documents Department

[Andreea Popa holding plaque]

Description: Photograph of Andreea Popa, one of the recipients of the Greater Texas Foundation Scholarship, holding up her award plaque for a picture. By her sides are Kalynne Tweedie and Chad Dozier. Dozier is holding a plate with food on it.
Date: April 7, 2010
Partner: UNT Libraries Special Collections

[Andreea Popa with TNT Co-Directors]

Description: Photograph of Andreea Popa, one of the 2009 recipients of the Greater Texas Foundation Scholarship, standing between Dr. Mary Harris and Dr. John Quintanilla, the co-directors of the Teach North Texas program. They are standing in front of plaques and Popa is holding a smaller one with her name on it.
Date: April 7, 2010
Partner: UNT Libraries Special Collections

Applying User-Centered Design Principles to Redesign the Interface to The Portal to Texas History: The IOGENE Project [Poster]

Description: Poster presented at the 2010 Society for Imaging Science and Technology Archiving Conference. This poster presents information related to the IOGENE project and discusses applying user-centered design principles to redesign the interface to The Portal to Texas History.
Date: 2010
Creator: Murray, Kathleen R. & Belden, Dreanna
Partner: UNT Libraries

[Ariana Guardado with students]

Description: Photograph of Ariana Guardado, a Teach North Texas program member, working with four students. They are working with activity sheets and on the smart board behind them is a slide that reads "How to Count... -Once you have counted all that you can count on one item you will continue the process of counting other items until there is nothing to count at that station. - You have 6 minutes per station, you will continue to the next station when you hear this...".
Date: October 21, 2010
Partner: UNT Libraries Special Collections

[Attendee and Amanda Holcomb]

Description: Photograph of an unidentified attendee and Amanda Holcomb during the Matching Mentor Teacher Meeting for the Teach North Texas program. They are sitting at a table in a classroom with a binder, a bag, papers, and refreshments in front of them. Behind them are other attendees seated at tables and against the back wall is a refreshments table.
Date: May 14, 2010
Partner: UNT Libraries Special Collections
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