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Displaying 76 - 100 of 262

Metrologies for Performance of Impact Mitigating Materials

June 12, 2017
Author(s)
Aaron M. Forster, Michael A. Riley
Soft non-linear materials are used to mitigate energy transfer between objects during high rate or frequency events. These impact mitigating materials (IMM) are used in a wide range of applications such as isolating rotating equipment, protecting buildings

Imposing Fine-grain Next Generation Access Control over Database Queries

May 25, 2017
Author(s)
David F. Ferraiolo, Serban I. Gavrila, Gopi Katwala, Joshua D. Roberts
In this paper we describe a system that leverages ANSI/INCITS Next Generation Access Control (NGAC) standard called Next-generation Database Access Control (NDAC) for accessing data in tables, rows, and columns in existing RDBMS products. NDAC imposes

Standardized Measurements of Collection Efficiency from Wipe-Sampling of Trace Explosives

April 10, 2017
Author(s)
Jennifer R. Verkouteren, Jeffrey A. Lawrence, Matthew E. Staymates, Edward R. Sisco
One of the limiting steps to detecting traces of explosives at screening venues is effective collection of the sample. Wipe-sampling is the most common procedure for collecting traces of explosives, and standardized measurements of collection efficiency

A Radio Frequency Radiation Reverberation Chamber Exposure System for Rodents

March 17, 2017
Author(s)
Perry F. Wilson, John M. Ladbury, Galen H. Koepke, Capstick Myles, Niels Kuster, Sven Kuhn, Veronica Berdinas-Torres, Yijian Gong, David McCormick, James Gauger, Ronald Melnick
In this paper we present the novel design features, their technical implementation, and an evaluation of the radio frequency (RF) exposure systems developed for the National Toxicology Program (NTP) of the National Institute of Environmental Health

Life Time Dosimetric Assessment for Mice and Rats Exposed to Cell Phone Radiation in Reverberation Chambers

March 17, 2017
Author(s)
Perry F. Wilson, John M. Ladbury, Galen H. Koepke, Yijian Gong, Myles Capstick, Keven Kuhn, David L. McCormick, Ronald L. Melnick, Niels Kuster
In this paper, we present a detailed life time dosimetry analysis for individually housed rodents exposed to radio frequency (RF) signals. The unrestrained rodents were exposed in reverberation chambers for 2 years at three whole-body averaged specific

An Overview of Mobile Application Vetting Services for Public Safety

January 27, 2017
Author(s)
Gema E. Howell, Michael A. Ogata
The Middle Class Tax Relief Act of 2012 mandated the creation of the Nation's first nationwide, high-speed communications network dedicated for public safety. The law instantiated a new federal entity, the Federal Responder Network Authority (FirstNet), to

First Workshop on Video Analytics in Public Safety

January 19, 2017
Author(s)
John S. Garofolo, Simson L. Garfinkel, Reva B. Schwartz
The first Video Analytics in Public Safety (VAPS) Workshop was held on Monday, June 6, 2016, in San Diego, CA as a satellite workshop of the Public Safety Communications Research (PSCR) Broadband Stakeholder Meeting, which was held on June 7-9. The

COMMUNITY RESILIENCE OF LIFELINE SYSTEMS: SOCIETAL NEEDS AND PERFORMANCE ASSESSMENT

January 13, 2017
Author(s)
Chris Rojahn, Laurie Johnson, Thomas O'Rourke, Veronica Cedillos, Therese P. McAllister
The concept of community resilience is a complex, multi-dimensional problem that relies on social science, engineering, earth sciences, economics, and other disciplines to improve the way communities prepare for, resist, respond to, and recover from

Direct and Cascading Effects of Seismic Events on the Response of Water and Electrical Power Networks

December 22, 2016
Author(s)
Roberto Guidotti, Hana T. Chmielewski, Vipin Unnikrishnan, Gardoni Paolo, Therese P. McAllister, John W. van de Lindt
Water and electrical power networks are critical infrastructure in our communities; their disruption, e.g., due to the occurrence of hazard events, greatly affects communities' well-being, the economic and social response of the entire region and recovery

Guide Brief 5: Assessing Energy System Dependencies

December 13, 2016
Author(s)
Community Resilience Program NIST
A major aspect of characterizing the built environment is identifying key infrastructure dependencies that may exist. Some of these dependencies are obvious; others are not. This Guide Brief focuses on Step 2, understanding the built environment, and

NIST Ballistics Toolmark Research Database

December 5, 2016
Author(s)
Xiaoyu Alan Zheng, Johannes A. Soons, Robert M. Thompson
The NIST Ballistics Toolmark Research Database (NBTRD) is an open-access research database of bullet and cartridge case toolmark data. The development of the database is sponsored by the U.S. Department of Justice's National Institute of Justice. The

Crowdsourcing to Develop Life-Saving Technologies

November 22, 2016
Author(s)
Tammi M. Marcoullier
The future of emergency services and saving more lives in disasters hinges on the success of technology that will be developed through crowdsourcing. Interoperability among first responder devices, Immersive Reality with VR/AR, and down-to-the-meter
Displaying 76 - 100 of 262