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Displaying 226 - 250 of 1516

M-ary state phase-shift keying discrimination below the homodyne limit

December 22, 2011
Author(s)
Francisco E. Becerra Chavez, Jingyun Fan, Gerald Baumgartner, Sergey V. Polyakov, Julius Goldhar, Jonathan Kosloski, Alan L. Migdall
We investigate a strategy for M-ary discrimination of nonorthogonal phase states with error rates below the homodyne limit. This strategy uses feed forward to update a reference field and Signal nulling for the state discrimination. We experimentally

Impacts of Ventilation, Pressurization and Envelope Airtightness on Building Protection Against Airborne CBR Incidents

September 1, 2004
Author(s)
Andrew K. Persily
… have advocated the use of several ventilation-based strategies to protect building occupants from accidental and … airtightness in determining the effectiveness of these strategies. This article discusses how ventilation impacts … and radiological (CBR) attacks, as well as some of the strategies where ventilation might be employed to increase …

A detailed comparison of two continuous GPS carrier-phase time transfer techniques

September 8, 2015
Author(s)
Jian Yao, Judah Levine, Skakun Ivan, Zhiheng Jiang
The wide application of GPS carrier-phase (CP) time transfer is limited by the problem of boundary discontinuity (BD). The discontinuity has two categories. One is "day boundary discontinuity," which has been studied extensively and can be solved by a few

Risk Analysis for Extreme Events: Economic Incentives for Reducing Future Losses.

December 1, 2004
Author(s)
H Kunreuther, R Meyer, C Vandenbulte
… and risk management in order to develop meaningful strategies for dealing with extreme events, i.e., low … private sectors with the ultimate goal of generating sound strategies for reducing the risks of extreme events and … aspects of risks. Risk management involves developing strategies for reducing the likelihood and/or consequences of …

Cost-Effective Responses to Terrorist Risks in Constructed Facilities

March 1, 2004
Author(s)
Robert E. Chapman, C J. Leng
… these risks. The methodology includes three mitigation strategies for reducing exposure to terrorist-related losses: … and (3) financial mechanisms.How these mitigation strategies are integrated into a cohesive risk mitigation … about the types and effectiveness of mitigation strategies that are available; and the costs associated with …

An Approach for Detection of Advanced Persistent Threat Attacks

December 1, 2020
Author(s)
Qingtian Zou, Xiaoyan Sun, Peng Liu, Anoop Singhal
… Persistent Threat (APT) campaigns employ sophisticated strategies and tactics to achieve their attack goal. The evolution of APT strategies and tactics compounds the challenge of detecting …

An Optimization Model to Inform Alternatives for Resilient Communities for Tornado Retrofits

January 6, 2026
Author(s)
William Hughes, Tasnim Ibn Faiz, Marc Levitan, Kenneth Harrison
… ARC is a mathematical programming model informingoptimal strategies to improve community-level resilience while … considerations. The ARC modelevaluates optimal retrofit strategies, including tornado shelters and structural … and budgetary constraints, optimal resilience enhancement strategies areevaluated, facilitating comparison of …

Implicitly Coupling Heat Conduction Into a Zone Fire Model (NISTIR 4886)

July 1, 1992
Author(s)
W F. Moss, Glenn P. Forney
This report examines several methods for coupling the partial differential equations that arise in conductive heat transfer with the ordinary differential equations that arise in zone fire modeling. Two existing algorithms (method of lines and time
Displaying 226 - 250 of 1516
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