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Conferences

Airtightness of Commercial Buildings in the United States

September 21, 2005

Author(s)

Steven J. Emmerich, Andrew K. Persily

In 1998, Persily published a review of commercial and institutional building airtightness data that found significant levels of air leakage and debunked the

Progress Toward Practical AC and DC Josephson Voltage Standards at NIST

September 21, 2005

Author(s)

Samuel Benz, Charles J. Burroughs, Paul Dresselhaus, Nicolas Hadacek, Yonuk Chong

For the past 10 years NIST has been developing the next generation of voltage standard systems based on arrays of normal-metal barrier Josephson junctions. We

HEB FPA Imaging Technology for Security and Biomedical Applications

September 19, 2005

Author(s)

Eyal Gerecht, Dazhen Gu, Sigfrid Yngvesson, Fernando Rodriguez-Morales, Ric Zannoni, John Nicholson

We have demonstrated a low-noise heterodyne three-element focal plane array (FPA) at 1.6 THz consisting of NbN Hot Electron Bolometric (HEB) detectors

Comparison Between Observed and Simulated Flame Structures in Poorly Ventilated Compartment Fires.

September 18, 2005

Author(s)

Zhixin Hu, Arnaud Trouve, Y Utiskul, J G. Quintiere

This study is aimed at characterizing the dynamics of compartment fires under poorly ventilated conditions. The study considers four cases that correspond to

Further Measurements of Fire Spread Through a Room With Polyurethane Foam Covered Walls. (POSTER ABSTRACTS)

September 18, 2005

Author(s)

Nelson P. Bryner, Daniel M. Madrzykowski, William L. Grosshandler

Experiments and Modeling of Unprotected Structural Steel Elements Exposed to a Fire

September 18, 2005

Author(s)

Anthony P. Hamins, Kevin B. McGrattan, Kuldeep R. Prasad, Alexander Maranghides, Therese P. McAllister

A large-scale fire experiment was conducted to assess the accuracy of a combination of gas and solid-phase models designed to predict the temperatures of

Energy Balance in a Large Compartment Fire. (POSTER ABSTRACTS)

September 18, 2005

Author(s)

Anthony P. Hamins, Erik L. Johnsson, Michelle K. Donnelly

The experiments described here were part of an international collaborative project to assess and validate fire computer codes for nuclear power plant

Simulating Fire Effects on Complex Building Structures.

September 18, 2005

Author(s)

Howard R. Baum

The purpose of this lecture is to assess the current state of our ability to simulate the consequences of a fire in a large building, and suggest some areas

Modeling Solid Sample Burning.

September 18, 2005

Author(s)

Gregory T. Linteris, L W. Gewuerz, Kevin B. McGrattan, Glenn P. Forney

Fire Modeling: Where Are We? Where Are We Going?

September 18, 2005

Author(s)

Kevin B. McGrattan

Experiments and Modeling of Unprotected Structural Steel Elements Exposed to a Fire.

September 18, 2005

Author(s)

Anthony P. Hamins, Kevin B. McGrattan, Kuldeep R. Prasad, Alexander Maranghides, Therese P. McAllister

Comparison Between Observed and Simulated Flame Structures in Poorly Ventilated Compartment Fires.

September 18, 2005

Author(s)

Zhixin Hu, Y Utiskul, Jim G. Quintiere, Arnaud Trouve

Chip-Scale Atomic Frequency References

September 16, 2005

Author(s)

John E. Kitching, Svenja A. Knappe, Li-Anne Liew, P Schwindt, Vladislav Gerginov, V Shah, John Moreland, Alan Brannon, J Breitbarth, Z Popovic, Leo W. Hollberg

We describe recent efforts at NIST to develop microfabricated, chip-scale atomic frequency references based on microfabrication techniques commonly used in

A Novel Approach to Fingerprint Image Quality

September 14, 2005

Author(s)

Elham Tabassi, Charles L. Wilson

We present a novel measure of fingerprint image quality, which can be used to estimate fingerprint match performance. This means presenting the matcher with

The Exact Multiplicative Complexity of the Hamming Weight Function

September 13, 2005

Author(s)

Rene C. Peralta, Joan Boyar

We consider the problem of computing the Hamming weight of an n-bit vector using a circuit with gates for addition and multiplication modulo 2 (alternatively

Interpolation Issues In the Estimation of Peak Internal Forces Using Wind Pressure Databases

September 12, 2005

Author(s)

Joseph A. Main

A procedure is presented that makes use of measured pressures to predict peak static responses of low buildings, for cases in which no wind tunnel model is

Combining Wind Pressure Databases With Structural Analysis To Predict Peak Responses For Rigid Buildings

September 12, 2005

Author(s)

Joseph A. Main

A procedure is described for the design of rigid buildings for wind loading. The procedure, based on the database-assisted design (DAD) approach, uses measured

A Modular System Architecture for Agile Assembly of Nanocomponents using Optical Tweezers

September 10, 2005

Author(s)

Arvind K. Balijepalli, Thomas W. LeBrun, Cedric V. Gagnon, Yong-Gu Lee, Nicholas G. Dagalakis

In order to realize the flexibility optical trapping offers as a nanoassembly tool, we need to develop natural and intuitiveinterfaces to assemble large

A Solution for Wireless Privacy and Payments based on E-cash

September 9, 2005

Author(s)

A Karygiannis, Y. Tsiounis, A. Kayias

With wireless capable devices becoming more and more accessible, there is an increasing need for standardization of wireless networking. One of the most

Issues in Line Edge and Linewidth Roughness Metrology

September 9, 2005

Author(s)

John S. Villarrubia

In semiconductor electronics applications, line edge and linewidth roughness are generally measured using a root mean square (RMS) metric. The true value of RMS

A Unifying Standard for Interfacing Transducers to Networks IEEE-1451.0

September 8, 2005

Author(s)

James Wiczer, Kang B. Lee

A committee of industry and government technology experts has completed a three-year effort to develop a set of specifications that consist of a unifying set of

Indoor Positioning Using Spatial Spectrum

September 7, 2005

Author(s)

Kamran Sayrafian

We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the

Silicide Barrier SNS Junctions for AC Josephson Voltage Standards

September 5, 2005

Author(s)

Paul Dresselhaus, Yonuk Chong, Nicolas Hadacek, Burm Baek, Michio Watanabe, Charles J. Burroughs, Samuel Benz

We have used MoSi2 barrier superconductor-normal-metal-superconductor (SNS) double stacked junctions to generate audio frequency ac waveforms with metrological

Arrays of high-temperature superconductor Josephson junctions for quantum voltage noise source

September 5, 2005

Author(s)

Alexander Klushin, Igor Gordiychuk, Samuel Benz

We have investigated arrays of bicrystal Josephson junctions for possible application in a quantized voltage noise source. In order to reduce the intrinsically

Methods for hearing aid directivity index measurements under simulated real-ear conditions

September 1, 2005

Author(s)

Randall P. Wagner

One technique traditionally used to measure the directivity index of hearing aids involves acquiring data with sound source locations (at multiple azimuth