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Conferences

Broadband Complex Permittivity Measurements of Dielectric Substrates using a Split-Cylinder Resonator

June 11, 2004

Author(s)

Michael D. Janezic, James R. Baker-Jarvis, Edward Kuester

We summarize a theoretical model for the split-cylinder resonator, based on the mode-matching method, for nondestructively measuring permittivity and loss...

Correction for Nonlinear Vector Network Analyzer Measurements Using a Stochastic Multiline/Reflect Method

June 11, 2004

Author(s)

Donald C. DeGroot, Yves Rolain, Rik Pintelon, Johan Schoukens

A new 16-term statistical calibration is developed for the correction of vector network analyzer (VNA) data. The method uses multiple measurments of gneric...

A Superconducting Microwave Power Limiter for High-Performance Receiver Protection

June 11, 2004

Author(s)

James Booth, Kenneth Leong, Susan A. Schima

We report on the development of a microwave power limiter based on high-temperature superconductor technology. The power limiter takes the form of a 50 ohm...

Available Data and Input Into Models.

June 10, 2004

Author(s)

R F. Fahy

There is a need for better data to improve our knowledge of human behavior in fire. This data can be used in the development and refinement of evacuation models...

Controlled Vesicle Self-Assembly in Continuous Two Phase Flow Microfluidic Channels

June 10, 2004

Author(s)

Andreas Jahn, Wyatt N. Vreeland, Laurie E. Locascio, Michael Gaitan

The spontaneous self-assembly of phospholipids into liposomes in aqueous solution results in the encapsulation of reagents into quantized packets in a manner...

Simulation Analysis of White LED Spectra and Color Rendering

June 9, 2004

Author(s)

Yoshihiro Ohno

Development and Application Issues of a Spectrally Tunable LED Source

June 8, 2004

Author(s)

George P. Eppeldauer, Steven W. Brown, G Dezsi, Irena Fryc, Yoshihiro Ohno

A spectrally tunable solid state source based on Light Emitting Diodes (LEDs) is being developed at the National Institute of Standards and Technology (NIST)...

Measurement of Total Radiant Flux of UV LEDS

June 7, 2004

Author(s)

Yuqin Zong, Carl C. Miller, Keith R. Lykke, Yoshihiro Ohno

Radiometer Measurements of a Near-Ambient, Variable-Temperature Noise Standard

June 7, 2004

Author(s)

George Free, James P. Randa, Robert L. Billinger

A near-ambient, variable-temperature noise standard whose physical temperature can be accurately measured was constructed and then measured with the NIST total...

Restorability versus Efficiency in (1:1) Protection Schemes for Optical Networks

June 1, 2004

Author(s)

David W. Griffith, Kotikalapudi Sriram, Sanghun Lee, Nada T. Golmie

NIST Experiments in Gas Atomization 1986-1999

June 1, 2004

Author(s)

Steven P. Mates, Frank S. Biancaniello, S D. Riddle

Research at the National Bureau of Standards (now the National Institute of Standards and Technology or NIST) involving the gas atomization of liquid metals has...

Viscosity Measurements and Model Comparisons for the Refrigerant Blends R-410A and R-507A

June 1, 2004

Author(s)

Arno R. Laesecke

Wide-ranging viscosity measurements of the blends RA410A (0.5 R32+0.5R125 by mass) and R507A (0.5 R143a+ 0.5R125 by mass) were carried out in a torsional...

Effect of Target and Probe Concentrations on Hybridization in DNA Microarrays

June 1, 2004

Author(s)

Lili Wang, Adolfas K. Gaigalas, Y Zong, S Zhang, J Shi, Yunda Wang

Efficient hybridization of complementary strands of DNA is the underlying principle of all microarray-based techniques for gene expression analysis. Recently...

Software for Optimizing Protection of Constructed Facilities

June 1, 2004

Author(s)

Amy S. Rushing, C J. Leng, Robert E. Chapman, Harold E. Marshall

Owners and managers of constructed facilities need help in optimizing protection against low-probability, extreme events, such as natural hazards and terrorist...

Johnson Noise Thermometry Using a Quantum Voltage Noise Source for Calibration

June 1, 2004

Author(s)

Sae Woo Nam, Samuel P. Benz, Paul D. Dresselhaus, Weston L. Tew, D. R. White, John M. Martinis

We describe our progress towards a high-precision measurement of temperature using Johnson noise. Using a Quantized Voltage Noise Source (QVNS) based on the...

Flat-Spot Measurements for an AC Josephson Voltage Standard

June 1, 2004

Author(s)

Charles J. Burroughs, Samuel P. Benz, Paul D. Dresselhaus, Yonuk Chong

Recent advances in circuit design and fabrication of superconducting integrated circuits have enabled us to demonstrate for the first time an ac Josephson...

Double-stacked MoSi2-barrier junctions for programmable Josephson voltage standards

June 1, 2004

Author(s)

Yonuk Chong, Charles J. Burroughs, Paul D. Dresselhaus, Nicolas Hadacek, Hirotake Yamamori, Samuel P. Benz

We are developing MoSi2-barrier stacked junction arrays for Josephson voltage standards in order to increase the output voltage, operating bandwidth, and...

Quantifying Assurance of Knowledge Based Authentication

June 1, 2004

Author(s)

Nelson E. Hastings, Donna F. Dodson

Understanding the principles of knowledge based authentication (KBA) and developing metrics that can be applied to KBA systems will improve information system...

On Aggregate Utility Maximization Based Network Management: Challenges and Possible Approaches

June 1, 2004

Author(s)

Vladimir V. Marbukh

X-Ray and Neutron Porosimetry as Powerful Methodologies for Determining Structural Characteristics of Porous Low-k Thin Films

June 1, 2004

Author(s)

Hae-Jeong Lee, B D. Vogt, Christopher L. Soles, Da-Wei Liu, Barry J. Bauer, Wen-Li Wu, Eric K. Lin, Gwi-Gwon Kang, Min-Jin Ko

Methylsilsesquioxane based porous low-k dielectric films with varying porogen loading have been characterized using X-ray and neutron porosimetry to determine...

Experimental Determination of Phase Equilibria Diagrams in Ceramic Systems

June 1, 2004

Author(s)

Robert S. Roth, Terrell A. Vanderah

Quadratic Frequency Dependence of an AC QHR Device

June 1, 2004

Author(s)

Marvin E. Cage

An equivalent electrical circuit model of an ac quantized Hall resistance device externally connected in quadruple series predicts a quadratic frequency...

NIKE: Integrated Workflow, Digital Library, and Online Catalog Systems

June 1, 2004

Author(s)

Nancy Allmang, Jo Ann Remshard

Many publishing houses are moving to online manuscript submissions and processing systems to manage the work of receiving, reviewing, and publishing scholarly...

NIKE: Integrated Workflow, Digital Library, and Online Catalog Systems. Poster.

June 1, 2004

Author(s)

Nancy Allmang, Jo Ann Remshard

Many publishing houses are moving to online manuscript submissions and processing systems to manage the work of receiving, reviewing, and publishing scholarly...

NIST Speaker Recognition Evaluation Chronicles

June 1, 2004

Author(s)

Mark A. Przybocki, Alvin F. Martin

Direct Resistance Comparisons From the Qhr to 100 Megohm Using a Cryogenic Current Comparator

June 1, 2004

Author(s)

Randolph Elmquist, Emmanouel S. Hourdakis, Dean G. Jarrett, Neil M. Zimmerman

We describe the operation of a cryogenic current comparator (CCC) bridge that attains high current sensitivity while maintaining stability under a range of...

Investigations of Noise in Measurements of Electronic Voltage Standards

June 1, 2004

Author(s)

Thomas J. Witt, Yi-hua D. Tang

We have studied the voltage noise of electronic voltage standards based on Zener diode references (Zeners). Ten volt Zener outputs were compared to NIST...

Settling Times of High-Value Standard Resistors

June 1, 2004

Author(s)

Dean G. Jarrett, Randolph Elmquist

An investigation of the response of high-value resistance standards and elements to applied potential has showed that the processes used to prepare and...

CCT Key Comparison No 1 (CCT-K1): Realisations of the ITS-90, 0.65 K to 24.5561 K, Using Rhodium-Iron Resistance Thermometers

June 1, 2004

Author(s)

R L. Rusby, Christopher W. Meyer, Weston L. Tew, D I. Head, K D. Hill, O Tamura, P A. de Groot, B Fellmuth, A Storm, A Peruzzi, J Engert, D N. Astrov, Y Dedikov, G A. Kytin

At its meeting in 1996 the CCT initiated five Key Comparisons to test the equivalence of realisations of the ITS-90 between National Measurement Institutes. CCT...

A Programmable Josephson Voltage Standard Chip using Arrays of NbN/TiN/NbN/TiN/NbN Double-junction Stacks Operated at 10K

June 1, 2004

Author(s)

Mayumi Ishizaki, Hirotake Yamamori, A. Shoji, Paul Dresselhaus, Samuel Benz

A programmable Josephson voltage standard chip using arrays of NbN/TiN/NbN/TiN/NbN double-junction stacks was fabricated and operated at 10 K. The circuit with...

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