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ARM Climate Research Facility Monthly Instrument Report July 2010 (open access)

ARM Climate Research Facility Monthly Instrument Report July 2010

The purpose of this report is to provide a concise but comprehensive overview of Atmospheric Radiation Measurement Climate Research Facility instrumentation status. The report is divided into the following five sections: (1) new instrumentation in the process of being acquired and deployed, (2) field campaigns, (3) existing instrumentation and progress on improvements or upgrades, (4) proposed future instrumentation, and (5) Small Business Innovation Research instrument development.
Date: August 18, 2010
Creator: Voyles, J. W.
System: The UNT Digital Library
MODELING THE IMPACT OF ELEVATED MERCURY IN DEFENSE WASTE PROCESSING FACILITY MELTER FEED ON THE MELTER OFF-GAS SYSTEM-PRELIMINARY REPORT (open access)

MODELING THE IMPACT OF ELEVATED MERCURY IN DEFENSE WASTE PROCESSING FACILITY MELTER FEED ON THE MELTER OFF-GAS SYSTEM-PRELIMINARY REPORT

The Defense Waste Processing Facility (DWPF) is currently evaluating an alternative Chemical Process Cell (CPC) flowsheet to increase throughput. It includes removal of the steam-stripping step, which would significantly reduce the CPC processing time and lessen the sampling needs. However, its downside would be to send 100% of the mercury that comes in with the sludge straight to the melter. For example, the new mercury content in the Sludge Batch 5 (SB5) melter feed is projected to be 25 times higher than that in the SB4 with nominal steam stripping of mercury. This task was initiated to study the impact of the worst-case scenario of zero-mercury-removal in the CPC on the DWPF melter offgas system. It is stressed that this study is intended to be scoping in nature, so the results presented in this report are preliminary. In order to study the impact of elevated mercury levels in the feed, it is necessary to be able to predict how mercury would speciate in the melter exhaust under varying melter operating conditions. A homogeneous gas-phase oxidation model of mercury by chloride was developed to do just that. The model contains two critical parameters pertaining to the partitioning of chloride among HCl, …
Date: August 18, 2010
Creator: Zamecnik, J. & Choi, A.
System: The UNT Digital Library
Optimization of Hydroacoustic Equipment Deployments at Lookout Point and Cougar Dams, Willamette Valley Project, 2010 (open access)

Optimization of Hydroacoustic Equipment Deployments at Lookout Point and Cougar Dams, Willamette Valley Project, 2010

The goal of the study was to optimize performance of the fixed-location hydroacoustic systems at Lookout Point Dam (LOP) and the acoustic imaging system at Cougar Dam (CGR) by determining deployment and data acquisition methods that minimized structural, electrical, and acoustic interference. The general approach was a multi-step process from mount design to final system configuration. The optimization effort resulted in successful deployments of hydroacoustic equipment at LOP and CGR.
Date: August 18, 2010
Creator: Johnson, Gary E.; Khan, Fenton; Ploskey, Gene R.; Hughes, James S. & Fischer, Eric S.
System: The UNT Digital Library
The Peace Corps: Current Issues (open access)

The Peace Corps: Current Issues

The report discusses the President's annual funding request for the Peace Corps, efforts to reauthorize the Peace Corps, and related issues. Current issues include the extent to which there is available funding for Peace Corps expansion, whether the Peace Corps has the institutional capacity to expand, and whether volunteers are able to function in a safe and secure environment.
Date: August 18, 2010
Creator: Tarnoff, Curt
System: The UNT Digital Library
California GAMA Special Study: Ion exchange and trace element surface complexation reactions associated with applied recharge of low-TDS water in the San Joaquin Valley, California (open access)

California GAMA Special Study: Ion exchange and trace element surface complexation reactions associated with applied recharge of low-TDS water in the San Joaquin Valley, California

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Date: August 18, 2010
Creator: McNab, W. W.; Singleton, M. J.; Moran, J. E. & Esser, B. K.
System: The UNT Digital Library
Responsibility Determinations Under the Federal Acquisition Regulation: Legal Standards and Procedures (open access)

Responsibility Determinations Under the Federal Acquisition Regulation: Legal Standards and Procedures

This report discusses the standards and procedures that federal agencies use in making responsibility determinations under the Federal Acquisition Regulation (FAR). As a general rule, government agencies contract with the lowest qualified responsible bidder or offeror. Responsibility is an attribute of the contractor, while price and qualifications are attributes of the bid or offer. Under the FAR, "[n]o purchase or award shall be made unless the contracting officer makes an affirmative determination of responsibility."
Date: August 18, 2010
Creator: Manuel, Kate M.
System: The UNT Digital Library
The Federal Food Safety System: A Primer (open access)

The Federal Food Safety System: A Primer

Numerous federal, state, and local agencies share responsibilities for regulating the safety of the U.S. food supply, which many experts say is among the safest in the world. This report discusses various food safety proposals in Congress, as well as agencies with food safety related responsibilities.
Date: August 18, 2010
Creator: Johnson, Renée
System: The UNT Digital Library
China's Currency: An Analysis of the Economic Issues (open access)

China's Currency: An Analysis of the Economic Issues

Over the past several years, the Chinese government has maintained a policy of intervening in currency markets to limit or halt the appreciation of its currency, the renminbi (RMB) against other major currencies, especially the U.S. dollar. This report examines the controversy surrounding China's practices and outlines possible policy options.
Date: August 18, 2010
Creator: Morrison, Wayne M.
System: The UNT Digital Library