An official website of the United States government
Here’s how you know
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.
Mohamed T. Refaei, Nader Moayeri, Michael R. Souryal
A common strategy for responding to indoor emergency scenarios is to rapidly deploy a group of first responders inside the incident area and an incident command...
Market-based compute grids encompass service providers offering limited resources to potential users with varying demands and willingness to pay. Providers face...
Elena Andreeva, Charles Bouillaguet, Pierre-Alain Fouque, Jonathan J. Hoch, John M. Kelsey, Adi Shamir, Sebastien Zimmer
We develop a new generic long-message second preimage attack, based on combining the techniques in the second preimage attacks of Dean Dean99} and Kelsey and...
We consider the security of Damgaard-Merkle variants which computer linear-XOR or additive checksums over message blocks, intermediate hash values, or both, and...
Ravikiran Attota, Richard M. Silver, Bryan M. Barnes
We present a new optical technique for dimensional analysis of sub 100 nm sized targets by analyzing through-focus images obtained using a conventional bright...
The effective use of modeling, simulation, and analysis (MSA) applications could greatly enhance our ability to carry out the homeland security mission. These...
Applications for 3D imaging systems (e.g., laser scanners) have increased significantly in the past decade. Data from such systems often require registration...
In this paper, we propose a new spatial interpolation algorithm for Intra-Frame error concealment. The method aims at interpolating areas in the image, which...
Fahim Sadek, Hai S. Lew, Joseph A. Main, John L. Gross
Beam-to-column moment connections in steel frame construction have been studied extensively for seismic applications. However, the behavior of such connections...
Temporal-Angular channel sounding measurements of an indoor millimeter wave channel (60 GHz) is analyzed to determine whether ray arrivals at the receiver form...
Jaewook Kim, Boonserm Kulvatunyou, Nenad Ivezic, Albert W. Jones
One of the most critical steps to integrating heterogeneous e-Business applications using different XML schemas is schema mapping, which is known to be costly...
Stephen J. Treado, Mark A. Kedzierski, V. J. Gallardo
This paper presents a discussion of methods for decontaminating building plumbing systems and restoring them to safe operation, based on generic contaminant...
The five types of cryocoolers used to provide cryogenic temperatures for various applications are the Joule-Thomson, Brayton, Stirling, Gifford-McMahon, and...
Jirun Sun, Yifu Ding, Nancy J. Lin, Hyun Wook Ro, Christopher L. Soles, Sheng Lin-Gibson
We investigated the behavior of pre-osteoblasts cultured on polystyrene and photopolymerized ethoxylated bisphenol-A dimethacrylate gradient patterns. Gradient...
The efficient use of energy provides the double benefits of controlling both energy costs and greenhouse gas (GHG) emissions. The industrial sector comprises...
Transfer printing has been demonstrated as a fabrication method for flexible organic electronics. The transfer printing process relies on the differential...
In developing and screening new materials, researchers are often interested in how factors such as the roughness, surface energy, and the chemical composition...
Jun Y. Chung, Young Jong Lee, Peyton Hopson, Michael J. Fasolka, Christopher Stafford
One of the most important considerations in the evaluation of hydrogels for biomedical and contact lens applications is the elastic modulus. The elastic modulus...
Nanotechnology promises to revolutionize a growing set of materials applications ranging from electronics to drug delivery to ballistic protection. However, the...
Heqing Huang, Adam J. Nolte, Jun Y. Chung, Christopher Stafford
In recent years, poly(dimethylsiloxane) (PDMS) has found increased application in the areas of microfluidic devices, chromatographic packing materials and...
As part of an effort to develop standard test methods for the performance of commercial hydrogen sensors, we employed the Fire Emulator / Detector Evaluator, an...
The use of thermal imaging cameras (TIC) by the fire service is increasing as firefighters become more aware of the value of these tools. The National Fire...
Thomas A. Siewert, Joseph D. McColskey, Angelique N. Lasseigne
In 2007, the National Institute of Standards and Technology greatly expanded its efforts in support of the use of hydrogen as a fuel. Various NIST divisions...
Using cooperative transmission, two or more single-antenna users can share their antennas to achieve spatial diversity in a slow fading channel. One relaying...
Rainer Stiefelhagen, Keni Bernardin, R Bowers, Richard T. Rose, Martial Michel, John S. Garofolo
This paper is a summary of the 2007 CLEAR Evaluation on the Classification of Events, Activities, and Relationships which took place in early 2007 and...
Theresa O'Connell, Yee-Yin Choong, John D. Grantham, M Moriarty, W Wong
An investigation of collaboration during a game that drew elements from two types of video games, massively multiplayer online role-playing games and serious...
Stewart Smith, Martin McCallum, Andrew Hourd, J. T. Stevenson, Anthony J. Walton, Ronald G. Dixson, Richard A. Allen, James E. Potzick, Michael W. Cresswell, Ndubuisi George Orji
Ndubuisi G. Orji, Ronald G. Dixson, B Bunday, J Allgair
Over the last few years, the need for shape metrology for process control has increased. A key component of shape metrology is sidewall angle (SWA). However...
Zeid Kootbally, Craig I. Schlenoff, Rajmohan Madhavan, Sebti Foufou
PRIDE (PRediction In Dynamic Environments) is a hierarchical multi-resolutional framework for moving object prediction. PRIDE incorporates multiple prediction...