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open access

Pipeline Safety: Better Data and Guidance Could Improve Operators' Responses to Incidents

Description: Testimony issued by the Government Accountability Office with an abstract that begins "Numerous variables--some of which are under operators' control--influence the ability of transmission pipeline operators to respond to incidents. For example, the location of response personnel and the use of manual or automated valves can affect the amount of time it takes for operators to respond to incidents. However, because the advantages and disadvantages of installing an automated valve are closely rel… more
Date: January 28, 2013
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Reduced-Order Model Based Feedback Control For Modified Hasegawa-Wakatani Model

Description: In this work, the development of model-based feedback control that stabilizes an unstable equilibrium is obtained for the Modi ed Hasegawa-Wakatani (MHW) equations, a classic model in plasma turbulence. First, a balanced truncation (a model reduction technique that has proven successful in ow control design problems) is applied to obtain a low dimensional model of the linearized MHW equation. Then a modelbased feedback controller is designed for the reduced order model using linear quadratic re… more
Date: January 28, 2013
Creator: I.R. Goumiri, C.W. Rowley, Z. Ma, D.A. Gates, J.A. Krommes and J.B. Parker
Partner: UNT Libraries Government Documents Department
open access

Traverse Focusing of Intense Charged Particle Beams with Chromatic Effects for Heavy Ion Fusion

Description: A fi nal focusing scheme designed to minimize chromatic effects is discussed. The Neutralized Drift Compression Experiment-II (NDCX-II) will apply a velocity tilt for longitudinal bunch compression, and a fi nal focusing solenoid (FFS) for transverse bunch compression. In the beam frame, neutralized drift compression causes a suffi#14;ciently large spread in axial momentum, pz , resulting in chromatic effects to the fi nal focal spot during transverse bunch compression. Placing a weaker solenoi… more
Date: January 28, 2013
Creator: James M. Mitrani, Igor D. Kaganovich, Ronald C. Davidson
Partner: UNT Libraries Government Documents Department
open access

Biological Ocean Margins Program. Active Microbes Responding to Inputs from the Orinoco River Plume. Final Report

Description: The overall goal of the proposed work is to identify the active members of the heterotrophic community involved in C and N cycling in the perimeter of the Orinoco River Plume (ORP), assess their spatial distribution, quantify their metabolic activity, and correlate these parameters to plume properties such as salinity, organic matter content and phytoplankton biomass.
Date: January 28, 2013
Creator: Corredor, Jorge E.
Partner: UNT Libraries Government Documents Department
open access

Cybersecurity: Cyber Crime Protection Security Act (S. 2111, 112th Congress)— A Legal Analysis

Description: This report discusses the Cyber Crime Protection Security Act (S. 2111) that would enhance the criminal penalties for the cyber crimes outlawed in the Computer Fraud and Abuse Act (CFAA). Those offenses include espionage, hacking, fraud, destruction, password trafficking, and extortion committed against computers and computer networks. S. 2111 contains some of the enhancements approved by the Senate Judiciary Committee when it reported the Personal Data Privacy and Security Act (S. 1151), S.Rep… more
Date: January 28, 2013
Creator: Doyle, Charles
Partner: UNT Libraries Government Documents Department
open access

Gangs in Central America

Description: This report describes the gang problem in Central America, discusses country approaches to deal with the gangs, and analyzes U.S. policy with respect to gangs in Central America. It concludes with possible questions for oversight that Congress may consider.
Date: January 28, 2013
Creator: Seelke, Clare Ribando
Partner: UNT Libraries Government Documents Department
open access

Final Report-Confirmatory Survey Results for the ABB Combustion Engineering Site, Windsor, Connecticut; Revision 1 (DCN 5158-SR-02-1) (Docket No. 030-03754; RFTA No. 12-003)

Description: The objectives of the confirmatory activities were to provide independent contractor field data reviews and to generate independent radiological data for use by the NRC in evaluating the adequacy and accuracy of the contractor�s procedures and FSS results. ORAU reviewed ABB CE�s decommissioning plan, final status survey plan, and the applicable soil DCGLs, which were developed based on an NRC-approved radiation dose assessment. The surveys included gamma surface scans, gamma direct measurements… more
Date: January 28, 2013
Creator: ADAMS, WADE C
Partner: UNT Libraries Government Documents Department
open access

Post-Closure Inspection Report for the Tonopah Test Range, Nevada, for Calendar Year 2012

Description: This report provides the results of the annual post-closure inspections conducted at the closed Corrective Action Units (CAUs) located on the Tonopah Test Range (TTR), Nevada. This report covers calendar year 2012 and includes inspection and repair activities completed at the following CAUs: · CAU 400: Bomblet Pit and Five Points Landfill (TTR) · CAU 407: Roller Coaster RadSafe Area (TTR) · CAU 424: Area 3 Landfill Complexes (TTR) · CAU 453: Area 9 UXO Landfill (TTR) · CAU 487: Thunderwell Site… more
Date: January 28, 2013
Creator: National Security Technologies, LLC
Partner: UNT Libraries Government Documents Department
open access

Formation and Stability of Impurity "snakes" in Tokamak Plasmas

Description: New observations of the formation and dynamics of long-lived impurity-induced helical "snake" modes in tokamak plasmas have recently been carried-out on Alcator C-Mod. The snakes form as an asymmetry in the impurity ion density that undergoes a seamless transition from a small helically displaced density to a large crescent-shaped helical structure inside q < 1, with a regularly sawtoothing core. The observations show that the conditions for the formation and persistence of a snake… more
Date: January 28, 2013
Creator: L. Delgado-Aparicio, et. al.
Partner: UNT Libraries Government Documents Department
open access

Stealing Trade Secrets and Economic Espionage: An Abridged Overview of 18 U.S.C. 1831 and 1832

Description: This report discuses the stealing a trade secret, which is a federal crime when the information relates to a product in interstate or foreign commerce, 18 U.S.C. 1832 (theft of trade secrets), or when the intended beneficiary is a foreign power, 18 U.S.C. 1831 (economic espionage).
Date: January 28, 2013
Creator: Doyle, Charles
Partner: UNT Libraries Government Documents Department
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