1 mil gold bond wire study. (open access)

1 mil gold bond wire study.

In microcircuit fabrication, the diameter and length of a bond wire have been shown to both affect the current versus fusing time ratio of a bond wire as well as the gap length of the fused wire. This study investigated the impact of current level on the time-to-open and gap length of 1 mil by 60 mil gold bond wires. During the experiments, constant current was provided for a control set of bond wires for 250ms, 410ms and until the wire fused; non-destructively pull-tested wires for 250ms; and notched wires. The key findings were that as the current increases, the gap length increases and 73% of the bond wires will fuse at 1.8A, and 100% of the wires fuse at 1.9A within 60ms. Due to the limited scope of experiments and limited data analyzed, further investigation is encouraged to confirm these observations.
Date: May 1, 2013
Creator: Huff, Johnathon; McLean, Michael B.; Jenkins, Mark W. & Rutherford, Brian Milne
Object Type: Report
System: The UNT Digital Library
2012 Undergraduate Transportation Scholars Program: Compendium of Student Papers (open access)

2012 Undergraduate Transportation Scholars Program: Compendium of Student Papers

This report is a compilation of research papers written by undergraduate students participating in the 2012 Undergraduate Transportation Scholars Program.
Date: May 2013
Creator: Texas A & M Transportation Institute
Object Type: Text
System: The Portal to Texas History

Accelerated Stress Testing, Qualification Testing, HAST, Field Experience - What Do They All Mean?

This presentation discusses the need for a set of tests for modules that would predict their long term-field performance.
Date: May 1, 2013
Creator: Wohlgemuth, J.
Object Type: Presentation
System: The UNT Digital Library

Accelerating Fatigue Testing for Cu Ribbon Interconnects

This presentation describes fatigue experiments and discusses dynamic mechanical loading for Cu ribbon interconnects.
Date: May 1, 2013
Creator: Bosco, N.; Silverman, T.; Wohlgemuth , J.; Kurtz, S.; Inoue, M.; Sakurai, K. et al.
Object Type: Presentation
System: The UNT Digital Library

Accounting for the Variation of Driver Aggression in the Simulation of Conventional and Advanced Vehicles

This presentation discusses a method of accounting for realistic levels of driver aggression to higher-level vehicle studies, including the impact of variation in real-world driving characteristics (acceleration and speed) on vehicle energy consumption and different powertrains (e.g., conventionally powered vehicles versus electrified drive vehicles [xEVs]). Aggression variation between drivers can increase fuel consumption by more than 50% or decrease it by more than 20% from average. The normalized fuel consumption deviation from average as a function of population percentile was found to be largely insensitive to powertrain. However, the traits of ideal driving behavior are a function of powertrain. In conventional vehicles, kinetic losses dominate rolling resistance and aerodynamic losses. In xEVs with regenerative braking, rolling resistance and aerodynamic losses dominate. The relation of fuel consumption predicted from real-world drive data to that predicted by the industry-standard HWFET, UDDS, LA92, and US06 drive cycles was not consistent across powertrains, and varied broadly from the mean, median, and mode of real-world driving. A drive cycle synthesized by NREL's DRIVE tool accurately and consistently reproduces average real-world for multiple powertrains within 1%, and can be used to calculate the fuel consumption effects of varying levels of driver aggression.
Date: May 1, 2013
Creator: Neubauer, J. & Wood, E.
Object Type: Presentation
System: The UNT Digital Library
Acoustic Telemetry Evaluation of Juvenile Salmonid Passage and Survival at John Day Dam, 2010 (open access)

Acoustic Telemetry Evaluation of Juvenile Salmonid Passage and Survival at John Day Dam, 2010

This report presents survival, behavioral, and fish passage results for yearling and subyearling Chinook salmon smolts and juvenile steelhead tagged with JSATS acoustic micro-transmitters as part of a survival study conducted at John Day Dam during 2010. This study was designed to evaluate the passage and survival of yearling and subyearling Chinook salmon and juvenile steelhead to assist managers in identifying dam operations for compliance testing as stipulated by the 2008 Federal Columbia River Power System Biological Opinion and the 2008 Columbia Basin Fish Accords. Survival estimates were based on a single-release survival estimate model.
Date: May 1, 2013
Creator: Weiland, Mark A.; Woodley, Christa M.; Ploskey, Gene R.; Hughes, James S.; Kim, Jin A.; Deng, Zhiqun et al.
Object Type: Report
System: The UNT Digital Library

Addressing the Impact of Temperature Extremes on Large Format Li-Ion Batteries for Vehicle Applications

This presentation discusses the effects of temperature on large format lithium-ion batteries in electric drive vehicles.
Date: May 1, 2013
Creator: Pesaran, A.; Santhanagopalan, S. & Kim, G. H.
Object Type: Presentation
System: The UNT Digital Library
Advanced Post-Irradiation Examination Capability T (open access)

Advanced Post-Irradiation Examination Capability T

This report describes the current status of the Ad
Date: May 1, 2013
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Advanced Thermal Storage System with Novel Molten Salt: December 8, 2011 - April 30, 2013 (open access)

Advanced Thermal Storage System with Novel Molten Salt: December 8, 2011 - April 30, 2013

Final technical progress report of Halotechnics Subcontract No. NEU-2-11979-01. Halotechnics has demonstrated an advanced thermal energy storage system with a novel molten salt operating at 700 degrees C. The molten salt and storage system will enable the use of advanced power cycles such as supercritical steam and supercritical carbon dioxide in next generation CSP plants. The salt consists of low cost, earth abundant materials.
Date: May 1, 2013
Creator: Jonemann, M.
Object Type: Report
System: The UNT Digital Library
Agriculture-Based Biofuels: Overview and Emerging Issues (open access)

Agriculture-Based Biofuels: Overview and Emerging Issues

This report reviews the evolution of the U.S. biofuels sector and the role that federal policy has played in shaping its development. In addition, it highlights emerging issues that are critical to the biofuels sector and of relevance to Congress.
Date: May 1, 2013
Creator: Schnepf, Randy
Object Type: Report
System: The UNT Digital Library
ALGORITHMS FOR THERMAL AND MECHANICAL CONTACT IN N (open access)

ALGORITHMS FOR THERMAL AND MECHANICAL CONTACT IN N

The transfer of heat and force from UO2 pellets to
Date: May 1, 2013
Creator: Hales, J. D.; Andrs, D. & Gaston, D. R.
Object Type: Article
System: The UNT Digital Library
Analysis of High-Penetration Levels of Photovoltaics into the Distribution Grid on Oahu, Hawaii: Detailed Analysis of HECO Feeder WF1 (open access)

Analysis of High-Penetration Levels of Photovoltaics into the Distribution Grid on Oahu, Hawaii: Detailed Analysis of HECO Feeder WF1

Renewable generation is growing at a rapid rate due to the incentives available and the aggressive renewable portfolio standard targets implemented by state governments. Distributed generation in particular is seeing the fastest growth among renewable energy projects, and is directly related to the incentives. Hawaii has the highest electricity costs in the country due to the high percentage of oil burning steam generation, and therefore has some of the highest penetration of distributed PV in the nation. The High Penetration PV project on Oahu aims to understand the effects of high penetration PV on the distribution level, to identify penetration levels creating disturbances on the circuit, and to offer mitigating solutions based on model results. Power flow models are validated using data collected from solar resources and load monitors deployed throughout the circuit. Existing interconnection methods and standards are evaluated in these emerging high penetration scenarios. A key finding is a shift in the level of detail to be considered and moving away from steady-state peak time analysis towards dynamic and time varying simulations. Each level of normal interconnection study is evaluated and enhanced to a new level of detail, allowing full understanding of each issue.
Date: May 1, 2013
Creator: Stewart, E.; MacPherson, J.; Vasilic, S.; Nakafuji, D. & Aukai, T.
Object Type: Report
System: The UNT Digital Library

Ancillary Services in the United States: Independent System Operator (ISO) Perspective

The presentation provides an overview of how increasing penetrations of variable renewable energy on the electricity grid are impacting ancillary services markets in the United States.
Date: May 1, 2013
Creator: Cochran, J.
Object Type: Presentation
System: The UNT Digital Library
Application of Wear-Resistant, NanoComposite Coatings Produced from Iron-Based Glassy Powders (open access)

Application of Wear-Resistant, NanoComposite Coatings Produced from Iron-Based Glassy Powders

This report talks about Application of Wear-Resistant, NanoComposite Coatings Produced from Iron-Based Glassy Powders.
Date: May 1, 2013
Creator: Peter, William H.; Dehoff, Ryan R.; Blau, Peter Julian; Yamamoto, Yukinori; Chen, Wei; Sabau, Adrian S. et al.
Object Type: Report
System: The UNT Digital Library
ARRA Material Handling Equipment Composite Data Products: Data Through Quarter 4 of 2012 (open access)

ARRA Material Handling Equipment Composite Data Products: Data Through Quarter 4 of 2012

This presentation from the U.S. Department of Energy's National Renewable Energy Laboratory includes American Recovery and Reinvestment Act (ARRA) fuel cell material handling equipment composite data products for data through the fourth quarter of 2012.
Date: May 1, 2013
Creator: Kurtz, J.; Sprik, S.; Ainscough, C.; Saur, G.; Post, M.; Peters, M. et al.
Object Type: Report
System: The UNT Digital Library
An Audit Report on Caseload and Staffing Analysis for Child Protective Services at the Department of Family and Protective Services (open access)

An Audit Report on Caseload and Staffing Analysis for Child Protective Services at the Department of Family and Protective Services

Report of the Texas State Auditor's Office related to the recruitment and hiring strategies of the Child Protective Services (CPS) Division of the Department of Family and Protective Services' (Department), and strategies to combat high vacancy and turnover rates, specifically in regards to retaining tenured CPS caseworkers and improving caseload management.
Date: May 2013
Creator: Texas. Office of the State Auditor.
Object Type: Report
System: The Portal to Texas History
An Audit Report on Performance Measures at the Office of Injured Employee Counsel (open access)

An Audit Report on Performance Measures at the Office of Injured Employee Counsel

Report of the Texas State Auditor's Office related to determining whether the Office of Injured Employee Counsel (Office) is accurately reporting its performance measures to ABEST and has adequate controls in place over the collection, calculation, and reporting of its performance measures.
Date: May 2013
Creator: Texas. Office of the State Auditor.
Object Type: Report
System: The Portal to Texas History
Big Data Scalability Issues in WAAS (open access)

Big Data Scalability Issues in WAAS

None
Date: May 1, 2013
Creator: Prokaj, J; Zhao, X; Choi, J & Medioni, G
Object Type: Article
System: The UNT Digital Library
Biomass Scenario Model Documentation: Data and References (open access)

Biomass Scenario Model Documentation: Data and References

The Biomass Scenario Model (BSM) is a system dynamics model that represents the entire biomass-to-biofuels supply chain, from feedstock to fuel use. The BSM is a complex model that has been used for extensive analyses; the model and its results can be better understood if input data used for initialization and calibration are well-characterized. It has been carefully validated and calibrated against the available data, with data gaps filled in using expert opinion and internally consistent assumed values. Most of the main data sources that feed into the model are recognized as baseline values by the industry. This report documents data sources and references in Version 2 of the BSM (BSM2), which only contains the ethanol pathway, although subsequent versions of the BSM contain multiple conversion pathways. The BSM2 contains over 12,000 total input values, with 506 distinct variables. Many of the variables are opportunities for the user to define scenarios, while others are simply used to initialize a stock, such as the initial number of biorefineries. However, around 35% of the distinct variables are defined by external sources, such as models or reports. The focus of this report is to provide insight into which sources are most influential in …
Date: May 1, 2013
Creator: Lin, Y.; Newes, E.; Bush, B.; Peterson, S. & Stright, D.
Object Type: Report
System: The UNT Digital Library
Breastfeeding Resources (open access)

Breastfeeding Resources

This document offers information on breastfeeding resources and education.
Date: May 2013
Creator: Texas. Department of State Health Services.
Object Type: Text
System: The Portal to Texas History
Budget Control Act: Potential Impact of Sequestration on Health Reform Spending (open access)

Budget Control Act: Potential Impact of Sequestration on Health Reform Spending

This report examines how automatic spending reductions triggered by the Budget Control Act of 2011 (BCA) might affect health reform implementation under the Patient Protection and Affordable Care Act (ACA). It is divided into three sections. The first section provides an overview of ACA's health insurance reforms and some analysis of the Congressional Budget Office's (CBO's) estimates of the impact of the law's implementation on federal direct spending and revenues. The second section examines the automatic spending reductions under the BCA. The final section discusses which types of health reform spending are likely subject to, or exempt from, those reductions.
Date: May 1, 2013
Creator: Redhead, C. Stephen
Object Type: Report
System: The UNT Digital Library
Building America Systems Integration Research Annual Report: FY 2012 (open access)

Building America Systems Integration Research Annual Report: FY 2012

This document is the Building America FY2012 Annual Report, which includes an overview of the Building America Program activities and the work completed by the National Renewable Energy Laboratory and the Building America industry consortia (the Building America teams). The annual report summarizes major technical accomplishments and progress towards U.S. Department of Energy Building Technologies Program's multi-year goal of developing the systems innovations that enable risk-free, cost effective, reliable and durable efficiency solutions that reduce energy use by 30%-50% in both new and existing homes.
Date: May 1, 2013
Creator: Gestwick, M.
Object Type: Report
System: The UNT Digital Library
Building an Effective Nonproliferation Program: US Support of IAEA Safeguards (open access)

Building an Effective Nonproliferation Program: US Support of IAEA Safeguards

N/A
Date: May 1, 2013
Creator: W., Stern & S., Pepper
Object Type: Report
System: The UNT Digital Library
Built Environment Analysis Tool: April 2013 (open access)

Built Environment Analysis Tool: April 2013

This documentation describes the tool development. It was created to evaluate the effects of built environment scenarios on transportation energy and greenhouse gas (GHG) emissions. This documentation also provides guidance on how to apply the tool.
Date: May 1, 2013
Creator: Porter, C.
Object Type: Report
System: The UNT Digital Library