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Conferences

Determination of surface barrier height and surface state density in GaN films grown on sapphire substrates

March 24, 2005

Author(s)

Seong-Eun Park, Joseph Kopanski, Youn-Seon Kang, Larry Robins, Hyun-Keel Shin

Photoreflectance (PR) modulation spectroscopy was performed to investigate surface properties of GaN films grown on sapphire substrates. From the period of the...

Stereoscopic Particle Image Velocimetry Measurements of Flow Through a Doorway of an Enclosure Fire Analogue

March 23, 2005

Author(s)

Rodney A. Bryant

A fire within a room or enclosure acts as a pump, pulling ambient air in while pushing combustion products mixed with air out. The openings through which the...

Intrinsic Surface States in Semiconductor Nanocrystals: HgS Quantum Dots

March 23, 2005

Author(s)

James S. Sims, Garnett W. Bryant, Howard Hung

Confined states in typical nanocrystals are localized to the dot interior. Surface states are extrinsic states localized at unsaturated dangling bonds or...

Frequency Biases Associated with Distributed Cavity Phase and Microwave Leakage in the Atomic Fountian Primary Frequency Standards IEN-CSF1 and NIST-F1

March 21, 2005

Author(s)

Steven R. Jefferts, Jon H. Shirley, Neil Ashby, Thomas P. Heavner, Elizabeth A. Donley, F Levi, Eric A. Burt, G J. Dick

The subject of frequency shifts in atomic frequency standards caused either by distributed cavity phase or microwave leakage goes back to the earliest days of...

Time and Frequency Comparisons Between Four European Timing Institutes and NIST Using Multiple Techniques

March 21, 2005

Author(s)

Andreas Bauch, Joseph Achkar, R Dach, R Hlavac, Luca Lorini, Thomas E. Parker, G. Petit, P Uhrich

Istituto Elettrotecnico Nazionale Galileo Ferraris (IEN), National Institute of Standards and Technology (NIST), National Physical Laboratory (NPL), Laboratoire...

Chip-Scale Atomic Frequency References: Fabrication and Performance

March 21, 2005

Author(s)

John E. Kitching, Svenja A. Knappe, Li-Anne Liew, John Moreland, Hugh Robinson, P Schwindt, V Shah, Vladislav Gerginov, Leo W. Hollberg

The physics package for a chip-scale atomic frequency standard was constructed and tested. The device has a total volume of 9.5 mm 3, dissipates 75 mW of...

Benchmark Experimental Database for Multiphase Combustion Model Input and Validation: A Users Follow-Up.

March 20, 2005

Author(s)

Cary Presser

Optimization of the performance of industrial combustion systems is relying increasingly on computational models and simulations to provide relevant process...

Transport of Gases in Charring Solids.

March 20, 2005

Author(s)

Howard R. Baum, A A. Atreya

Urban-Wildland Fires: On the Ignition of Surfaces by Embers.

March 20, 2005

Author(s)

Samuel L. Manzello, Thomas G. Cleary, John R. Shields, Jiann C. Yang

On the Use of a Well Stirred Reactor to Study Soot Inception.

March 20, 2005

Author(s)

Samuel L. Manzello, George W. Mulholland, M Donovan, W Tsang, K-W Park, Michael R. Zachariah, S D. Stouffer

Numerical Study of Opposed-Flow Flame Spread Over Charring Solids.

March 20, 2005

Author(s)

W Park, A A. Atreya, Howard R. Baum

Coupled Thermal-Elastic Response of Structures to Fires.

March 20, 2005

Author(s)

Kuldeep R. Prasad, Howard R. Baum

Experimental Study on Effects of Sample Orientation on Non-Piloted Ignition of Thin PMMA Sheets.

March 20, 2005

Author(s)

Hiroshi Gotoda, Samuel L. Manzello, Takashi Kashiwagi

Oxidation of Large Molecular Weight Hydrocarbons in a Pressurized Flow Reactor.

March 20, 2005

Author(s)

David B. Lenhert, N P. Cernansky, D. L. Miller

Stereoscopic Particle Image Velocimetry Measurements of Flow Through a Doorway of an Enclosure Fire Analogue.

March 20, 2005

Author(s)

Rodney A. Bryant

Flame Extinguishment in a Cup-Burner Apparatus.

March 20, 2005

Author(s)

F Takahashi, Gregory T. Linteris, Vishwanath R. Katta

Radio Propagation Measurements During a Building Collapse: Applications for First Responders

March 3, 2005

Author(s)

Christopher L. Holloway, Galen H. Koepke, Dennis G. Camell, Catherine A. Remley, Dylan F. Williams

The National Institute of Standards and Technology is involved in a research project to improve wireless communications for first responders (firefighters and...

Influence of Focus Variation on Linewidth Measurements

March 3, 2005

Author(s)

M Tanaka, John S. Villarrubia, Andras Vladar

The influence of spatial resolution on line width measurements in the critical dimension scanning electron microscope (CD-SEM) was investigated experimentally...

Troubleshooting Key Comparisons: A Survey of Design, Analysis, and Reporting of Results in Key Comparisons

March 1, 2005

Author(s)

Adriana Hornikova, William F. Guthrie

Key comparisons are international interlaboratory studies used to establish the degree of equivalence between national measurement standards. These studies...

Mitochondrial DNA Typing Screens With Control Region and Coding Region SNPs

March 1, 2005

Author(s)

Margaret C. Kline, Peter M. Vallone, Janette W. Redman, David L. Duewer, C D. Calloway, John M. Butler

Mitochondrial DNA (mtDNA) analysis has found an important niche in forensic DNA typing. It is used with highly degraded samples or low-copy number materials...

Soft-Decision Metrics for Coded Orthogonal Signaling in Symmetric Alpha-Stable Noise

March 1, 2005

Author(s)

Michael R. Souryal, E G. Larsson, B M. Peric, B R. Vojcic

This paper derives new soft decision metrics for coded orthogonal signaling in symmetric a-stable noise, which has been used to model impulsive noise. In...

Interfacial Structure of Photoresist Thin Films in Developer Solutions

March 1, 2005

Author(s)

Vivek M. Prabhu, B D. Vogt, Wen-Li Wu, Jack F. Douglas, Sushil K. Satija, D M. Goldfarb, H Ito

The development step is critical to the fabrication of nanostructures in chemically amplified photoresist technology. With critical dimensions (CD) shrinking to...

Testing BIOS Interrupt 0x13 Based Software Write Blockers

March 1, 2005

Author(s)

James R. Lyle, Paul E. Black

We report observations and experience in the Computer Forensics Tool Testing (CFTT) project while developing methodologies to test interrupt 0x13 based software...

Technology for the Information Commons in a Special Library

March 1, 2005

Author(s)

Nancy Allmang, Rosa Liu

Recently, Information Commons has become a buzzword with two meanings--a gathering place for collaborating and sharing new technologies, or a virtual spot for...

Measurement of Weak Signals Using a Communications Receiver System

March 1, 2005

Author(s)

Marc Rutschlin, Kate Remley, Robert T. Johnk, Dylan Williams, Galen H. Koepke

We describe the calibration of an inexpensive, reliable system for use in weak-signal detection. The calibration procedure described allows the conversion of...

Web-Based 3D Visualization in a Digital Library of Mathematical Functions

March 1, 2005

Author(s)

Qiming Wang, Bonita V. Saunders

The National Institute of Standards and Technology (NIST) is developing a digital library of mathematical functions to replace the widely used National Bureau...

Flame Extinguishment in a Cup-Burner Apparatus

March 1, 2005

Author(s)

F Takahashi, Gregory T. Linteris, V Katta

Unsteady extinguishment phenomena of laminar methane-air co-flow diffusion flames formed in a cup-burner apparatus at normal earth gravity have been studied...

Electric Current Induced Thermomechanical Fatigue Testing of Interconnects

March 1, 2005

Author(s)

Robert Keller, Roy H. Geiss, Yi-Wen Cheng, David T. Read

We demonstrate the use of electrical methods for evaluating the thermomechanical fatigue properties of patterned aluminum and copper interconnects on silicon...

Characterizing the Risks and Costs of BGP Insecurity/Security

March 1, 2005

Author(s)

Douglas Montgomery, Kotikalapudi Sriram, Oliver Borchert, Okhee Kim, D. Richard Kuhn

We examine the performance of multimodal biometric authentication systems using state-of-the-art Commercial Off-the-Shelf (COTS) fingerprint and face biometric...

Novel Electrostatic Discharge Protection Structure for a Monolithic Gas Sensor Systems-On-A-Chip

March 1, 2005

Author(s)

Javier A. Salcedo, Juin J. Liou, Muhammad Afridi, Allen R. Hefner Jr.

A new On-Chip Electrostatic Discharge (ESD) protection scheme is demonstrated for MicroElectroMechanical Systems (MEMS)-based Embedded Sensor (ES) System-on-a...

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