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NIST Authors in Bold

Displaying 28301 - 28325 of 73929

Nanoscale Measurements with a Through-Focus Scanning-Optical-Microscope

July 15, 2009
Author(s)
Ravikiran Attota, Richard M. Silver, Thomas A. Germer
We present a novel optical technique that produces nanometer dimensional measurement sensitivity using a conventional optical microscope, by analyzing through-focus scanning-optical-microscope (TSOM) images obtained at different focus positions. In

At-Wavelength Metrology for EUV Lithography at NIST

July 14, 2009
Author(s)
Charles S. Tarrio, Steven E. Grantham, Robert E. Vest, Thomas B. Lucatorto
The National Institute of Standards and Technology (NIST) is active in many areas of metrology impacting extreme ultraviolet lithography. We will describe our activities in the areas of reflectometry, pulsed radiometry, and long-term multiplayer mirror

Characterization of Fly Ash Reactivity in Hydrating Cement by Neutron Scattering

July 14, 2009
Author(s)
W Bumrongjaroen, Richard A. Livingston, Dan A. Neumann, Andrew J. Allen
A combination of small-angle and inelastic neutron scattering studies are presented to elucidate the different effects of Class F and Class C fly ash additions on microstructure development in hydrating cement (and concrete). Small angle neutron scattering

A Framework for Testing Distributed Healthcare Applications

July 13, 2009
Author(s)
Robert D. Snelick, Leonard E. Gebase, Gavin W. O'Brien
We present an architectural framework for supporting conformance and interoperability testing among distributed healthcare systems. Healthcare organizations such as hospitals employ information systems that are composed of multiple, distributed

Assessing Approaches for Evaluating Remote Heterogeneous Applications

July 13, 2009
Author(s)
Leonard E. Gebase, Robert D. Snelick
We examine several methods for testing disparate, heterogeneous systems that intercommunicate through message exchanges governed by a set of well defined message exchange rules. Rather than basing our assessment on a set of abstract applications, we will

Connecting Buildings to Public Safety Networks

July 13, 2009
Author(s)
Alan B. Vinh, David G. Holmberg
The operation of modern buildings can support a vast amount of static and real-time data. Static information such as building schematics is vital for security and rescue purposes. First responders can be notified of designated building alerts in real-time

Frustrated magnetization reversal in Co/Pt multilayer films

July 13, 2009
Author(s)
Joseph E. Davies, O Hellwig, Eric E. Fullerton, M. Winklhofer, Robert D. Shull, Kai Liu
The magnetization reversal behavior in Co/Pt multilayers with perpendicular anisotropy are studied by the first order reversal curve (FORC) method. In addition to the previously observed three stage reversal process where domains first nucleate, then

Intensity dynamics in semiconductor laser arrays

July 13, 2009
Author(s)
Kevin L. Silverman, Mingming M. Feng, Richard P. Mirin, Steven T. Cundiff, Matt Williams, J. Nathan N. Kutz
The dynamics of a five-emitter semiconductor laser array is studied theoretically with steady-state, oscillatory, and chaotic behaviors achieved. This provides a design tool for achieving oscillations whose frequency is related to injection current.

Lower Bounds for Accessing Information on Pure Pointer Machines

July 13, 2009
Author(s)
Brian D. Cloteaux, Desh Ranjan
We study the complexity of representing an array on a Pure Pointer Machine (PPM) or a pointer machine without arithmetic capabilities. In particular, we show that lower bounds in access time for information retrieval on a PPM arise from two different

Rendering UML Activity Diagrams as Human-Readable Text

July 13, 2009
Author(s)
David W. Flater, Philippe A. Martin, Michelle L. Crane
We describe a modification of the Petri Net Linear Form notation to support the rendering of Unified Modeling Language (UML) Activity Diagrams as human-readable text. This new notation, called the Activity Diagram Linear Form, allows UML Activity Diagrams

Robust Volume Calculations of Tumors of Various Sizes

July 13, 2009
Author(s)
Adele P. Peskin, Karen Kafadar, A.M. Santos, Gillian Haemer
Many advances in medicine today require the accurate reading of computerized tomographic (CT) images of the body. Tumors in the lung, for example, are classified according to their detected growth, i.e. change in volume, over a period of time. CT data are

Semiconductor Microelectronics and Nanoelectronics Programs

July 13, 2009
Author(s)
Joaquin (. Martinez, Yaw S. Obeng, Michele L. Buckley
The microelectronics industry supplies vital components to the electronics industry and to the U.S. economy, enabling repaid improvements in productivity and in new high technology growth industries such as electronic commerce and biotechnology. The

Sources of Differences in On-Orbit Total Solar Irradiance Measurements

July 13, 2009
Author(s)
James J. Butler, R Barnes, B. Carol Johnson, Joseph P. Rice, Eric L. Shirley
There is a 5 W/m2 difference between current on-orbit Total Solar Irradiance (TSI) measurements. On 18-20 July 2005, a workshop was held at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland that focused on understanding

Synthetic Lung Tumor Data Sets for Comparison of Volumetric Algorithms

July 13, 2009
Author(s)
Adele P. Peskin, Alden A. Dima, Javier Bernal, David E. Gilsinn, Karen Kafadar
The change in pulmonary nodules over time is an important indicator of malignant tumors. It is therefore important to be able to measure change in the size of tumors from computed tomography (CT) data taken at different times and on potentially different

The Process of Human Behavior in Fires

July 13, 2009
Author(s)
Erica D. Kuligowski
Evacuation models, including engineering hand calculations and computational tools, are used to evaluate the level of safety provided by buildings during evacuation. However, there is a lack of available data and theory on occupant behavior for use by

Connecting Buildings to Public Safety Networks (conference paper)

July 10, 2009
Author(s)
Alan B. Vinh, David G. Holmberg
The operation of modern commercial buildings uses digital control systems which monitor a vast amount of sensors. These sensors in turn produce data that is available for building control but also can be mission-critical for effective emergency response

Connecting Buildings to Public Safety Networks.

July 10, 2009
Author(s)
A Vinh
The operation of modem commercial buildings uses digital control systems which monitor a vast amount of sensors. These sensors in turn produce data that is available for building control but also can be mission-critical for effective emergency response
Displaying 28301 - 28325 of 73929
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