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Conferences

MEASUREMENTS FOR MECHANICAL RELIABILITY OF THIN FILMS

September 23, 2009

Author(s)

David T. Read, Alex Volinsky

This paper reviews techniques for measurement of basic mechanical properties of thin films. Emphasis is placed on the adaptations needed to prepare, handle, and...

Unified Model for Bulk Acoustic Wave Resonators Nonlinear Effects

September 20, 2009

Author(s)

Eduard Rocas, Juan C. Collado Gomez, James C. Booth, Enrique Iborra, Robert Aigner

We present a nonlinear model for Bulk Acoustic Wave resonators that combines different sources of nonlinearity, using device-independent material specific...

Optical performance monitoring of PSK Data Channels using artificial neural networks trained with parameters derived from delay-tap asynchronous diagrams via balanced detection

September 20, 2009

Author(s)

Jeffrey A. Jargon, Xiaoxia Wu, Zhensheng Jia, Loukas Paraschis, Ronald Skoog, Alan Willner

We demonstrate a technique of using artificial neural networks for optical performance monitoring of PSK data signals. Parameters for training are derived from...

A Combinatorial Approach to Building Navigation Graphs for Dynamic Web Applications

September 20, 2009

Author(s)

Raghu N. Kacker, David R. Kuhn, James F. Lawrence, Wenhua Wang, Yu Lei, Sreedevi Sampath

Modeling the navigation structure of a dynamic web application is a challenging task because of the presence of dynamic pages. In particular, there are two...

Nanoindentation of Si Nanostructures: Buckling and Friction at Nanoscales

September 18, 2009

Author(s)

Huai Huang, Bin Li, Qiu Zhao, Zhiquan Luo, Jay Im, Min Kang, Richard A. Allen, Michael W. Cresswell, Rui Huang, Paul S. Ho

A nanoindentation system was employed to characterize mechanical properties of silicon nanolines (SiNLs), which were fabricated by an anisotropic wet etching...

Considering Discourse References in Textual Entailment Annotation

September 17, 2009

Author(s)

Luisa Bentivogli, Ido Dagan, Hoa T. Dang, Danilo Giampiccolo, Medea L. Leggio, Bernardo Magnini

In the 2009 Recognizing Textual Entailment (RTE) challenge, a Search Pilot task has been introduced, aimed at finding all the sentences in a corpus which entail...

A Statistical Path Loss Model for Medical Implant Communication Channels

September 16, 2009

Author(s)

Kamran Sayrafian, Wen-Bin Yang, John G. Hagedorn, Judith E. Terrill, Kamya Yazdandoost

Knowledge of the propagation media is a key step toward a successful transceiver design. Such information is typically gathered by conducting physical...

Message-Independent Test Harness for Content-Level Test of B2B Standards: An Application Information Mapping Test Case Study

September 16, 2009

Author(s)

Jun H. Shin, Jaewook Kim, Nenad Ivezic

NIST has developed B2B interoperability testbeds to assist the assessment of interoperability among the B2B applications. One of the capabilities provided by...

PEG-HYDROGELS: SYNTHESIS, CHARACTERIZATION, AND CELL ENCAPSULATION

September 15, 2009

Author(s)

Sheng Lin-Gibson, Kaushik Chatterjee, James A. Cooper, William E. Wallace, Matthew Becker, Carl G. Simon Jr., Ferenc Horkay

A simple reaction to prepare controlled molecular mass (MM) poly(ethylene glycol) dimethacrylates (PEGDMs) of high purity and low polydispersity is outlined...

Practical method for measurement of AC-driven LEDs at a given junction temperature by using active heat sinks

September 15, 2009

Author(s)

Yuqin Zong, Pei-ting Chou, Min-Te Lin, Yoshihiro Ohno

Alternating-current (AC) driven high-power light-emitting diodes (LEDs) have become available and introduced into solid-state lighting (SSL) products. AC LEDs...

Microbial colonization on polymers: Effects of sample preparation and incorporation of quaternary ammonium salts

September 13, 2009

Author(s)

Nancy Lin, Diana N. Zeiger, Joseph M. Antonucci, Bruce O. Fowler, Christopher Stafford, Sheng Lin-Gibson

Controlling bacterial growth in the oral environment presents many challenges. To address these challenges, new materials and treatments are needed along with...

An electrical pulse-heated Kosky bar technique for high strain rate flow stress measurements of rapidly heated metals

September 13, 2009

Author(s)

Steven P. Mates, Stephen W. Banovic, Richard L. Rhorer, Timothy J. Burns, Eric P. Whitenton, D Basak

We have developed a unique electrical pulse-heated Kolsky Bar technique for measuring the flow stress of metals at heating rates of up to 6000 °C per second and...

A Spectroscopic Polarimeter For Detecting Chiral Signatures In Astrobiological Samples

September 11, 2009

Author(s)

Baoliang Wang, William Sparks, Thomas Germer, Andy Leadbetter

We have developed a polarimeter for accurately measuring both the circular and linear polarization components of a light beam from 400 nm to 800 nm. This...

Studying Long-term Performance of a Nano-ZnO filled Waterborne Polyurethane Coating using Spectroscopies and Microscopies

September 9, 2009

Author(s)

Xiaohong Gu, Dongmei Zhe, Stephanie S. Watson, Guodong Chen, Minhua Zhao, Paul E. Stutzman, Deborah S. Jacobs, Tinh Nguyen, Joannie W. Chin, Jonathan W. Martin

Although inorganic UV absorbers such as zinc oxide (ZnO) and cerium oxide (CeO2) exhibit numerous advantages compared to organic UV absorbers, the mechanisms of...

Testing the Performance of Hydrogen Sensors

September 8, 2009

Author(s)

Nathan D. Marsh, Thomas G. Cleary

The acceptance of hydrogen as a widely-available energy source will depend to some extent on the perceived and actual safe dispensing and storage of hydrogen by...

Prediction of Light Scattering and Ionization Chamber Sensor Response to Smolder Smoke Aerosols

September 8, 2009

Author(s)

Thomas G. Cleary, Jiann C. Yang

Diagnostic equipment developed for an International Space Station experiment, the Smoke Aerosol Measurement Experiment (SAME), utilized three measurement...

Full-Scale Residential Smoke Alarm Performance

September 8, 2009

Author(s)

Thomas G. Cleary

A series of 24 full-scale experiments were conducted in a multi-room structure to examine the effects of alarm type (photoelectric, ionization, and dual sensor)...

Alkylammonium Functionalized Montmorillonite-Epoxy Composites: Improvements in Mechanical Properties

September 7, 2009

Author(s)

Mickey Richardson, Gale A. Holmes

Organofunctionalized montmorillonite clays (MM) have been prepared with ammonium cations having a distribution of alkyl chain lengths. Relative to clays treated...

Correlation in Uncertainty of Measurement - A Discussion of State of the Art Techniques

September 6, 2009

Author(s)

Ruediger Kessel, Raghu N. Kacker

The Guide to the expression of uncertainty has been around for 15 years and has been widely adopted by science and industry. Over time more and more complex...

NIST Experience with Non-Rotating Force-Balanced Piston Gauges for Low Pressure Metrology

September 6, 2009

Author(s)

Jay H. Hendricks, Douglas A. Olson

The National Institute of Standards and Technology (NIST) Low Pressure Manometry Project maintains and operates primary standard ultrasonic interferometer...

GEOMETRIC MEASUREMENT COMPARISONS FOR ROCKWELL DIAMOND INDENTERS

September 6, 2009

Author(s)

Jun-Feng Song, Samuel R. Low III, Xiaoyu A. Zheng

In the uncertainty budget of Rockwell C hardness (HRC) tests, geometric error of the Rockwell diamond indenter is a major contributor. The geometric calibration...

Microfabricated multispectral MRI agents: a brief overview

September 3, 2009

Author(s)

Gary Zabow

This paper provides an introductory overview on recent top-down microfabricated, as opposed to traditional bottom-up chemically synthesized, magnetic resonance...

Accurate Picoscale Forces for Insitu Calibration of AFM

September 3, 2009

Author(s)

Koo-Hyun Chung, Gordon A. Shaw, Jon R. Pratt

The force sensitivity of an atomic force microscope is calibrated directly using an in situ realization of primary electrostatic forces ranging from 320 pN to 3...

Evaluation and Selection of Candidate Thermal Insulation Materials for NIST SRM 1450d, Fibrous-Glass Board

September 2, 2009

Author(s)

Robert R. Zarr, Dennis D. Leber

The evaluation of candidate thermal insulation materials for National Institute of Standards and Technology (NIST) Standard Reference Material (SRM) 1450d...

Assessing the Measurement Uncertainty of Thermophysical Properties

September 2, 2009

Author(s)

Robert R. Zarr

A generalized approach for the expression of measurement uncertainty consistent with current international practice is presented. The approach is applicable to...

International Comparison on Thermal Conductivity Measurements of Insulating Materials by Guarded Hot Plate

September 2, 2009

Author(s)

Bruno Hay, Leonel Lira Cortes, Benoit Doucey, Jean Remy Filtz, Nikolay Sokolov, Clark Stacey, Robert R. Zarr, Jintao Zhang

An inter-laboratory comparison on thermal conductivity measurements of insulating materials is currently organized under the auspices of the Bureau...

Recent Progress in Understanding the Imaging and Metrology using the Helium Ion Microscope

September 1, 2009

Author(s)

Michael T. Postek, Andras Vladar, Bin Ming

Nanotechnology is pushing imaging and measurement instrument technology to high levels of required performance. As this continues, new barriers confronting...

Low noise up-conversion single photon detector and its applications in quantum information systems

August 28, 2009

Author(s)

Xiao Tang, Lijun Ma

We developed low-noise up-conversion single photon detectors for 1310 nm based on a periodically-poled LiNbO3 (PPLN) waveguide. The low-noise feature is...

A Decade of Commitment from the NIST Manufacturing Engineering Laboratory to Nanomanufacturing and Nanometrology

August 27, 2009

Author(s)

Kevin W. Lyons, Michael T. Postek

Advanced research in nanomanufacturing technologies and processes has continued at an accelerating rate over the past decade. Profitable niche applications such...

Input Data Management Methodology for Discrete Event Simulation

August 26, 2009

Author(s)

Nils E. Bengtsson, Guodong Shao, Yung-Tsun T. Lee, Swee K. Leong, Charles R. McLean, Bjorn Johansson, Anders Skoogh

Input Data Management (IDM) is a time consuming and costly process for Discrete Event Simulation (DES) projects. In this paper, a methodology for IDM in DES...

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