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 Collection: Texas State Publications
The Medallion, Volume 50, Number 1, Winter 2012

The Medallion, Volume 50, Number 1, Winter 2012

Date: Winter 2012
Creator: Texas Historical Commission
Description: Quarterly publication of the Texas Historical Commission containing articles about historic sites, events, and conservation in Texas, as well as organizational and related news.
Contributing Partner: Texas Historical Commission
The Medallion, Volume 50, Number 3, Summer 2012

The Medallion, Volume 50, Number 3, Summer 2012

Date: Summer 2012
Creator: Texas Historical Commission
Description: Quarterly publication of the Texas Historical Commission containing articles about historic sites, events, and conservation in Texas, as well as organizational and related news.
Contributing Partner: Texas Historical Commission
The Medallion, Volume 50, Number 2, Spring 2012

The Medallion, Volume 50, Number 2, Spring 2012

Date: Spring 2012
Creator: Texas Historical Commission
Description: Quarterly publication of the Texas Historical Commission containing articles about historic sites, events, and conservation in Texas, as well as organizational and related news.
Contributing Partner: Texas Historical Commission
Predicting damage in concrete due to expansive aggregates : modeling to enable sustainable material design

Predicting damage in concrete due to expansive aggregates : modeling to enable sustainable material design

Date: April 2012
Creator: Grasley, Zachary Charles & Rahman, Syeda
Description: "A poroelastic model is developed that can predict stress and strain distributions and, thus, ostensibly damage likelihood in concrete under freezing conditions caused by aggregates with undesirable combinations of geometry and constitutive properties.Sensitivity of the stress distributions to the aggregate and matrix constitutive parameters are assessed to allow improved concrete design."
Contributing Partner: UNT Libraries Government Documents Department
The design of a comprehensive microsimulator of household vehicle fleet composition, utilization, and evolution

The design of a comprehensive microsimulator of household vehicle fleet composition, utilization, and evolution

Date: January 2012
Creator: Paleti, Rajesh.; Eluru, Naveen; Bhat, R. Chandra; Pendyala, Ram M.; Adler, Thomas J. & Goulias, Konstadinos G.
Description: "The report describes a comprehensive vehicle fleet composition, utilization, and evolution simulator that can be used to forecast household vehicle ownership and mileage by type of vehicle over time. The components of the simulator are developed in this research effort using detailed revealed and stated preference data on household vehicle fleet composition, utilization, and planned transactions collected for a large sample of households in California. Results of the model development effort show that the simulator holds promise as a tool for simulating vehicular choice processes in the context of activity-based travel microsimulation model systems."
Contributing Partner: UNT Libraries Government Documents Department
Implementing a project and portfolio management system for TxDOT project development

Implementing a project and portfolio management system for TxDOT project development

Date: October 2011
Creator: Khwaja, Nabeel
Description: "Beginning in the summer of 1999, Texas Department of Transportation (TxDOT) started developing the framework for implementing a sophisticated new system to manage its large and diverse portfolio of projects during their development phase. This was followed by the implementation itself for managing project schedules, project and portfolio resources and costs during their development cycle. This unique and challenging implementation across TxDOT encompassed all functional areas involved in the project development phase. It was successfully completed by overcoming technical, technological, and cultural challenges inherent with any implementation of this scale and magnitude."
Contributing Partner: UNT Libraries Government Documents Department
Laboratory evaluation of friction loss and compactability of asphalt mixtures

Laboratory evaluation of friction loss and compactability of asphalt mixtures

Date: April 2012
Creator: Kassem, Emad Abdel-Rahman; Masad, Eyad; Awed, Ahmed & Little, Dallas
Description: "This study aimed to develop prediction models for friction loss and laboratory compaction of asphalt mixtures. In addition, the study evaluated the effect of compaction level and compaction method of skid resistance and the internal structure of asphalt mixtures."
Contributing Partner: UNT Libraries Government Documents Department
Implementing a project and portfolio management system for TxDOT project development

Implementing a project and portfolio management system for TxDOT project development

Date: October 2011
Creator: Khwaja, Nabeel
Description: "Beginning in the summer of 2099, Texas Department of Transportation (TxDOT) started developing the framework for implementing a sophisticated new system to manage its large and divers portfolio of projects during their development phase. This was followed by the implementation itself for managing project schedules, project and portfolio resources and costs during their development cycle. This unique and challenging implementation across TxDOT encompassed all functional areas involved in the project development phase. It was successfully completed by overcoming technical, technological, and cultural challenges inherent with any implementation of this scale and magnitude."
Contributing Partner: UNT Libraries Government Documents Department
Impacts of energy developments on the Texas Transportation System infrastructure

Impacts of energy developments on the Texas Transportation System infrastructure

Date: October 2011
Creator: Prozzi, Jolanda; Grebenschikov, Sergey; Banerjee, Ambarish & Prozzi, Jorge Alberto
Description: "Texas energy sector has a critical impact-historically and currently-on both the state economy and the Texas transportation system. The stat's various transportation modes, including rail, highways, pipelines, and ports, form a system that supports the energy sector in a number of ways."
Contributing Partner: UNT Libraries Government Documents Department
Evaluation of corrosion resistance of improved post-tensioning materials after long-term exposure testing

Evaluation of corrosion resistance of improved post-tensioning materials after long-term exposure testing

Date: October 2011
Creator: McCool, G. E.; Ahern, M. E.; Breen, J. E. & Wood, S. L.
Description: Ten full-scale post-tensioned beam specimens were subject to 4 years of aggressive cyclic ponded saltwater exposure. Three of those specimens were additionally exposed to saltwater spray once per month on one anchorage face. Non-destructive monitoring was conducted during the exposure period. This consisted of half-cell potential measurements, AC impedance measurements (for specimens with fully encapsulated tendons), and regular visual inspections. Chloride samples were extracted from the specimens at the end of exposure. "After 4 years, the specimens were autopsied, and all reinforcing elements from the middle of each specimen were examined for corrosion and damage. Anchorage regions were also autopsied and examined for corrosion. Duct systems included galvanized metal ducts, plastic ducts, and encapsulated duct systems. Strand types included conventional strand, hot dipped galvanized strand, copper clad strand, and stainless steel strand. Complete observations are presented."
Contributing Partner: UNT Libraries Government Documents Department
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