U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 37801 - 37825 of 143775

Measuring the UV Action Spectra of Pathogens and Surrogates

September 22, 2013
Author(s)
Karl G. Linden, Harold B. Wright, Sara E. Beck, Thomas M. Hargy, Thomas C. Larason, Randi M. McCuin
The use of bioassays to determine reduction equivalent doses delivered by UV reactors is recognized as an effective measure of UV disinfection systems. Low pressure (LP) UV delivered in controlled collimated beam systems provides dose response curves which

Using a Tunable Ultraviolet Laser for the Inactivation of Water Pathogens

September 22, 2013
Author(s)
Thomas C. Larason, Keith R. Lykke, Ping-Shine Shaw, Lin Chungsan
Ultraviolet (UV) radiation effectively inactivates common pathogens found in ground and surface waters such as Cryptosporidium, Giardia, and most bacterial pathogens (e.g. E. coli). Water treatment facilities are now using UV radiation for disinfection of

Aggregating Vulnerability Metrics in Enterprise Networks using Attack Graphs

September 20, 2013
Author(s)
John Homer, Su Zhang, Xinming Ou, David Schmidt, Yanhui Du, S. Raj Rajagopalan, Anoop Singhal
Quantifying security risk is an important and yet difficult task in enterprise network security man- agement. While metrics exist for individual software vulnerabilities, there is currently no standard way of aggregating such metrics. We present a model

A novel apparatus to measure reflected sunlight from the Moon

September 19, 2013
Author(s)
Claire E. Cramer, Gerald T. Fraser, Keith R. Lykke, John T. Woodward IV, Alan W. Smith
We describe a new apparatus for measuring the spectral irradiance of the Moon at visible wavelengths. Our effort builds upon the United States Geological Survey’s highly successful Robotic Lunar Observatory (ROLO), which determined a precise model for the

Applying the Hedonic Method

September 18, 2013
Author(s)
Stanley W. Gilbert
Often, advances in measurement science will enable the development of new product innovations. When trying to estimate the value of the benefits of an advance in measurement science, it can be difficult to estimate the value of those new product

Cryptographic Key Management Issues & Challenges in Cloud Services

September 18, 2013
Author(s)
Ramaswamy Chandramouli, Michaela Iorga, Santosh Chokhani
To interact with various services in the cloud and to store the data generated/processed by those services, several security capabilities are required. Based on a core set of features in the three common cloud services - Infrastructure as a Service (IaaS)

Exploratory Study of Airflow from SCBA Exposed to Elevated Temperatures

September 18, 2013
Author(s)
Michelle K. Donnelly, Daniel M. Madrzykowski, Anthony D. Putorti Jr.
This exploratory set of experiments investigated the impact of external exposure temperatures on Self Contained Breathing Apparatus (SCBA) supply air, and the potential for the supply air to be heated when it is subjected to an elevated temperature
Displaying 37801 - 37825 of 143775
Was this page helpful?