A year one interim report of testing and improving requirements for limestone rock asphalt.

An evaluation and comparison of the level of protection provided to workers by truck-mounted and trailer-mounted attenuators.

This report documents the first year of research involving the effectiveness of pylon implementations on high speed facilities.

"This report describes the methodology and results of analyses performed to assess the impact of work zone lighting on motorists."

"This project searched available moisture-measurement technologies using gravimetric, dielectric, electrical conductivity, and suction-based methods, as potential replacements for the nuclear gauge to provide rapid moisture measurement on field construction projects."

"This report summarizes the research completed for TxDOT Project No. 5-6235-01 and discusses the implications and future applications of the work. This project extended the capabilities of the Project Evaluation Toolkit (PET), while introducing the software to a large network of potential users across the state."

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This report talks about Application of Wear-Resistant, NanoComposite Coatings Produced from Iron-Based Glassy Powders.

Report about the Ab-initio Reaction Calculations for Carbon-12 (ESP Technical Report): ALCF-2 Early Science Program Technical Report

This report talks about the ALCF I/O Data Repository.

This report details the results of a comprehensive research project aimed at evaluating the potential use of non-destructive testing to access structures affected by alkali-silica reactions (ASR) and/or delayed ettringite formation (DEF).

The goal of this project is to study the fundamental physical phenoena associated with air ingress in very high temperature reactors (VHTRs). Air ingress may occur due to a nupture of primary piping and a subsequent breach in the primary pressure boundary in helium-cooled and graphite-moderated VHTRs. Significant air ingress is a concern because it introduces potential to expose the fuel, graphite support rods, and core to a risk of severe graphite oxidation. Two of the most probable air ingress scenarios involve rupture of a control rod or fuel access standpipe, and rupture in the main coolant pipe on the lower part of the reactor pressure vessel. Therefor, establishing a fundamental understanding of air ingress phenomena is critical in order to rationally evaluate safety of existing VHTRs and develop new designs that mimimize these risks. But despite this importance, progress toward development these predictive capabilities has been slowed by the complex nature of the underlaying phenomena. The combination of interdiffusion among multiple species, molecular diffusion, natural convection, and complex geometries, as well as the multiple chemical reactions involved, impose significant roadblocks to both modeling and experiment design. The project team will employ a coordinated experimental and computational effort that will …

The purpose of this project is to quantify the interfacial transport of water into the most prevalent nuclear reprocessing solvent extractant mixture, namely tri-butyl- phosphate (TBP) and dodecane, via massively parallel molecular dynamics simulations on the most powerful machines available for open research. Specifically, we will accomplish this objective by evolving the water/TBP/dodecane system up to 1 ms elapsed time, and validate the simulation results by direct comparison with experimentally measured water solubility in the organic phase. The significance of this effort is to demonstrate for the first time that the combination of emerging simulation tools and state-of-the-art supercomputers can provide quantitative information on par to experimental measurements for solvent extraction systems of relevance to the nuclear fuel cycle. Results: Initially, the isolated single component, and single phase systems were studied followed by the two-phase, multicomponent counterpart. Specifically, the systems we studied were: pure TBP; pure n-dodecane; TBP/n-dodecane mixture; and the complete extraction system: water-TBP/n-dodecane two phase system to gain deep insight into the water extraction process. We have completely achieved our goal of simulating the molecular extraction of water molecules into the TBP/n-dodecane mixture up to the saturation point, and obtained favorable comparison with experimental data. Many insights into …

This CRS Report for Congress contains descriptions of U.S. policy response, legislation, and sanctions pertaining to Iran. Updated May 28, 2013.

This report discusses past United States food aid programs in relation to 2013 farm bill food aid proposals by Congress. This includes past international and domestic applications of food aid, its issues, and congressional response.