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Department of Homeland Security 2014 Strategic Sustainability Performance Plan

Description: This report reflects the Department of Homeland Securities' strategic vision for doing business in a more efficient and sustainable way. The report includes sections on greenhouse gas (GHG) reduction, sustainable building, fleet management, water use efficiency and management, pollution prevention and waste reduction, sustainable acquisition, electronic stewardship and data centers, renewable energy, climate change resilience, and energy performance contracts.
Date: June 23, 2014
Creator: United States. Department of Homeland Security.
Partner: UNT Libraries Government Documents Department

DHS Climate Action Plan: Addendum

Description: This report discusses the action plan for the Department of Homeland Security related to climate change. It stats that "as a result of the uncertainties associated with climate change affects, historically successful strategies for managing resources and infrastructure will become less effective over time, requiring new paradigms, policies and procedures".
Date: June 2014
Creator: United States. Department of Homeland Security.
Partner: UNT Libraries Government Documents Department

The 2014 Quadrennial Homeland Security Review

Description: This report provides an update to the five basic homeland security missions set forth by the first Quadrennial Homeland Security Review in 2010. They include: prevent terrorism and enhance security, secure and manage our borders, enforce and administer our immigration laws, safeguard and secure cyberspace, and strengthen national preparedness and resilience.
Date: June 2014
Creator: United States. Department of Homeland Security.
Partner: UNT Libraries Government Documents Department

DHS Climate Action Plan

Description: This plan looks at the rising sea temperatures shifting precipitation patterns, and extreme weather events.
Date: September 2013
Creator: United States. Department of Homeland Security.
Partner: UNT Libraries Government Documents Department

Best Practices for the Security of Radioactive Materials

Description: This work is funded under a grant provided by the US Department of Health and Human Services, Centers for Disease Control. The Department of Health and Mental Hygiene (DOHMH) awarded a contract to Brookhaven National Laboratory (BNL) to develop best practices guidance for Office of Radiological Health (ORH) licensees to increase on-site security to deter and prevent theft of radioactive materials (RAM). The purpose of this document is to describe best practices available to manage the security of radioactive materials in medical centers, hospitals, and research facilities. There are thousands of such facilities in the United States, and recent studies suggest that these materials may be vulnerable to theft or sabotage. Their malevolent use in a radiological-dispersion device (RDD), viz., a dirty bomb, can have severe environmental- and economic- impacts, the associated area denial, and potentially large cleanup costs, as well as other effects on the licensees and the public. These issues are important to all Nuclear Regulatory Commission and Agreement State licensees, and to the general public. This document outlines approaches for the licensees possessing these materials to undertake security audits to identify vulnerabilities in how these materials are stored or used, and to describe best practices to upgrade or enhance their security. Best practices can be described as the most efficient (least amount of effort/cost) and effective (best results) way of accomplishing a task and meeting an objective, based on repeatable procedures that have proven themselves over time for many people and circumstances. Best practices within the security industry include information security, personnel security, administrative security, and physical security. Each discipline within the security industry has its own 'best practices' that have evolved over time into common ones. With respect to radiological devices and radioactive-materials security, industry best practices encompass both physical security (hardware and engineering) and administrative ...
Date: May 1, 2009
Creator: Coulter, D. T. & Musolino, S.
Partner: UNT Libraries Government Documents Department

The New York Midtown Dispersion Study (Mid-05) Meteorological Data Report.

Description: The New York City midtown dispersion program, MID05, examined atmospheric transport in the deep urban canyons near Rockefeller Center. Little is known about air flow and hazardous gas dispersion under such conditions, since previous urban field experiments have focused on small to medium sized cities with much smaller street canyons and examined response over a much larger area. During August, 2005, a series of six gas tracer tests were conducted and sampling was conducted over a 2 km grid. A critical component of understanding gas movement in these studies is detailed wind and meteorological information in the study zone. To support data interpretation and modeling, several meteorological stations were installed at street level and on roof tops in Manhattan. In addition, meteorological data from airports and other weather instrumentation around New York City were collected. This document describes the meteorological component of the project and provides an outline of data file formats for the different instruments. These data provide enough detail to support highly-resolved computational simulations of gas transport in the study zone.
Date: January 1, 2007
Creator: Reynolds, R. M.; Sullivan, T. M.; Smith, S. & Cassella, V.
Partner: UNT Libraries Government Documents Department

DHS Regional Reachback: Rapid Expert Radiation Alarm Assistance.

Description: Following assessments that attacks with radiological and nuclear weapons are possible, detection system deployments are being supported at national and local levels. Detection systems include both, highly sensitive but non-discriminating detectors, as well as detectors and algorithms capable of distinguishing and identifying gamma rays by energy. The latter systems, usually handheld systems based on sodium iodide detectors, also provide analysis of the specific radionuclides present and are referred to as radioisotope identifiers (RIIDs). Studies have shown that sodium iodide based RIIDs fall far short of 100% accurate identifications. The U.S. Department of Homeland Security (DHS) initiated the Regional Reachback (RRB) Program in 2006 to provide rapid expert interpretation of gamma spectroscopic data from radiation alarms from detection systems deployed by state and local authorities. With expert specialists on call 24/7, RRB provides an avenue for local and state authorities to verify routine results, interpret unknown identifications, and notify national response assets if needed. This paper will provide details of the RRE3 program, an outline of the analysis process, a description of the drills and training systems used to maintain specialists response performance, and examples of drills and incidents from the first full year of operation.
Date: July 13, 2008
Creator: Bowerman, B.; Archer, D.; Young, J.; Monetti, M. & Savage, B.
Partner: UNT Libraries Government Documents Department

Analyzing Enron Data: Bitmap Indexing Outperforms MySQL Queries bySeveral Orders of Magnitude

Description: FastBit is an efficient, compressed bitmap indexing technology that was developed in our group. In this report we evaluate the performance of MySQL and FastBit for analyzing the email traffic of the Enron dataset. The first finding shows that materializing the join results of several tables significantly improves the query performance. The second finding shows that FastBit outperforms MySQL by several orders of magnitude.
Date: January 28, 2006
Creator: Stockinger, Kurt; Rotem, Doron; Shoshani, Arie & Wu, Kesheng
Partner: UNT Libraries Government Documents Department

Thermographic analyses of the growth of Cd1-xZnxTe single crystals

Description: Bulk Cd1-xZnxTe (0<x<0.1) single crystals for gamma-ray detectors are grown mainly from near-stoichiometric melts. We discuss the influence of the thermal pre-history of the melts (superheating, thermo-cycling, and cooling rate) on various physical properties based on our thermographic analyses, electrical conductivity and viscosity measurements. Increasing the Zn content causes non-monotonic dependencies in the quality of the crystals structure.
Date: August 1, 2010
Creator: Kopach, O. V.; Bolotnikov, A.; Shcherbak, Larysa P.; Fochuk, Petro M. & James, Ralph B.
Partner: UNT Libraries Government Documents Department

Indoor Exposure to Radiation in the Case of an Outdoorrelease

Description: This report quantifies the effectiveness of ''sheltering in place'' in a commercial building in the event of an outdoor radiological release. The indoor exposure to airborne particles is calculated by solving the mass balance equation that accounts for the loss of particles due to deposition, filtration and exhaust. Quantitative estimates of shelter-inplace effectiveness are provided for typical commercial buildings.
Date: June 1, 2006
Creator: Price, Phillip N. & Jayaraman, Buvana
Partner: UNT Libraries Government Documents Department

The Effect of Terrorism on Public Confidence : An Exploratory Study.

Description: A primary goal of terrorism is to instill a sense of fear and vulnerability in a population and to erode confidence in government and law enforcement agencies to protect citizens against future attacks. In recognition of its importance, the Department of Homeland Security includes public confidence as one of the metrics it uses to assess the consequences of terrorist attacks. Hence, several factors--including a detailed understanding of the variations in public confidence among individuals, by type of terrorist event, and as a function of time--are critical to developing this metric. In this exploratory study, a questionnaire was designed, tested, and administered to small groups of individuals to measure public confidence in the ability of federal, state, and local governments and their public safety agencies to prevent acts of terrorism. Data were collected from the groups before and after they watched mock television news broadcasts portraying a smallpox attack, a series of suicide bomber attacks, a refinery bombing, and cyber intrusions on financial institutions that resulted in identity theft and financial losses. Our findings include the following: (a) the subjects can be classified into at least three distinct groups on the basis of their baseline outlook--optimistic, pessimistic, and unaffected; (b) the subjects make discriminations in their interpretations of an event on the basis of the nature of a terrorist attack, the time horizon, and its impact; (c) the recovery of confidence after a terrorist event has an incubation period and typically does not return to its initial level in the long-term; (d) the patterns of recovery of confidence differ between the optimists and the pessimists; and (e) individuals are able to associate a monetary value with a loss or gain in confidence, and the value associated with a loss is greater than the value associated with a gain. These findings illustrate ...
Date: October 31, 2008
Creator: Berry, M. S.; Baldwin, T. E.; Samsa, M. E.; Ramaprasad, A. & Sciences, Decision and Information
Partner: UNT Libraries Government Documents Department

Multiphase imaging of gas flow in a nanoporous material usingremote detection NMR

Description: Pore structure and connectivity determine how microstructured materials perform in applications such as catalysis, fluid storage and transport, filtering, or as reactors. We report a model study on silica aerogel using a recently introduced time-of-flight (TOF) magnetic resonance imaging technique to characterize the flow field and elucidate the effects of heterogeneities in the pore structure on gas flow and dispersion with Xe-129 as the gas-phase sensor. The observed chemical shift allows the separate visualization of unrestricted xenon and xenon confined in the pores of the aerogel. The asymmetrical nature of the dispersion pattern alludes to the existence of a stationary and a flow regime in the aerogel. An exchange time constant is determined to characterize the gas transfer between them. As a general methodology, this technique provides new insights into the dynamics of flow in porous media where multiple phases or chemical species may be present.
Date: October 3, 2005
Creator: Harel, Elad; Granwehr, Josef; Seeley, Juliette A. & Pines, Alex
Partner: UNT Libraries Government Documents Department