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Conferences

Comulative Acknowledgement Multicast Repetition Policy for Wireless LANs or Ad Hoc Network Clusters

May 2, 2002

Author(s)

Leonard E. Miller, B-J Kwak

For a wireless LAN or a cluster of nodes in an ad hoc wireless network, multicast transmissions from a controlling station must be acknowledged by the nodes...

The Status of the IEEE Standard on Transitions, Pulses, and Related Waveforms

May 1, 2002

Author(s)

Nicholas G. Paulter Jr., Donald R. Larson

In recent years, the IEEE has been revising the now expired IEEE standards on pulse techniques and definitions. This revision includes adding and deleting...

Velocity Measurements of Polydisperse Sprays Using Particle Image Velocimetry

May 1, 2002

Author(s)

J F. Widmann, S Gorman

The accuracy of particle image velocimetry measurements in polydisperse sprays is investigated using simulations. The objective of the study is to determine if...

Evaluating Building Integrated Photovoltaic Performance Models

May 1, 2002

Author(s)

Arthur H. Fanney, Brian P. Dougherty, Mark W. Davis

Predictive performance tools could accelerate the implementation of integrated photovoltaics (BIPV. The National Institute of Standards and Technology (NIST)...

Performance and Characterization of Building Integrated Photovoltaic Panels

May 1, 2002

Author(s)

Arthur H. Fanney, Brian P. Dougherty, Mark W. Davis

Buildings consume more than two-thirds of the electricity in the United States. The incorporation of photovoltaics into the buildings, referred to as building...

Application of a Reliability-Based Methodology for Predicting the Outdoor Service Life of Polymers

May 1, 2002

Author(s)

Joannie W. Chin, Jonathan W. Martin, E Byrd, Tinh Nguyen, N Embree, J D. Tate

Organic polymers are a commercially important class of materials that are being increasingly used in outdoor applications such as paints, coatings, sealants...

Liquid Agent Transport Around Solid Obstacles

May 1, 2002

Author(s)

Cary Presser, J F. Widmann, G Papadopoulos

The focus of this effort is to investigate the dispersal of liquid fire suppression agents around solid obstacles, and obtain a better understanding of the...

Experimental and Theoretical Evaluations of the Iosipescu Shear Test for Hybrid Fiber Composites

May 1, 2002

Author(s)

J He, Martin Y. Chiang, Walter G. McDonough, Donald L. Hunston

The Iosipescu shear test with a modified Wyoming test fixture (ASTM D5379-93) was investigated experimentally and theoretically as a mean for determining the in...

Regenerative Stability Analysis of Highly Interrupted Machining

May 1, 2002

Author(s)

Matthew A. Davies, Jon R. Pratt, Brian S. Dutterer, Timothy J. Burns

We discuss theoretical and experimental work that supports the use of very low radia immersion in the high-speed milling of difficult-to-machine materials, such...

Temperature Effects During Capillary Rheometry Testing

May 1, 2002

Author(s)

Anthony J. Bur, S C. Roth, H Lobo

A non-contact temperature monitoring technique based on fluorescence spectroscopy was used to measure the temperature of a polymer resin during capillary...

In-Line Dielectric Monitoring During Extrusion of Filled Polymers

May 1, 2002

Author(s)

Anthony J. Bur, S C. Roth, M M. McBrearty

Dielectric measurements were made on clay filled polyethylene-ethyl vinyl acetate (EVA) copolymer nanocomposites during processing by extrusion. The results...

Combining Laser Range, Color, and Texture Cues for Autonomous Road Following

May 1, 2002

Author(s)

C E. Rasmussen

We describe preliminary results on combining depth information from a laser range-finder and color and texture image cues to train classifiers to segment ill...

Strain Measurements in Thermally-Loaded Circuit Boards Containing Embedded Resistors

May 1, 2002

Author(s)

Elizabeth S. Drexler, R C. Snogren, M C. Snogren, J J. Felten, P A. Green

Four specimens of embedded resistors were tested from room temperature to the processingtemperature (177 C) to compare deformations in the printed wiring board...

Assigning and Enforcing Security Policies on Handheld Devices

May 1, 2002

Author(s)

Wayne Jansen, Athanasios T. Karygiannis, Serban I. Gavrila, Vlad Korolev

The proliferation of mobile handheld devices, such as Personal Digital Assistants (PDAs) and tablet computers, within the workplace is expanding rapidly. While...

Dynamic Expansion of M:N Protection Groups in GMPLS Optical Networks

May 1, 2002

Author(s)

David W. Griffith, Sanghun Lee

In order to provide reliable connections across metropolitan and wide-area optical networks, the network operator must provide some degree of redundancy so that...

Phase Field Modeling Applied to the Double Layer

May 1, 2002

Author(s)

Jonathan E. Guyer, William J. Boettinger, James A. Warren, Geoffrey B. McFadden

We present the first application of phase field modeling to electrochemistry. A free energy functional that includes the electrostatic effect of charged...

Accuracy and Reproducibility of X-Ray Texture Measurements on Thin Films

May 1, 2002

Author(s)

Mark D. Vaudin, G R. Fox, G -. Kowach

Rocking curve texture measurements were made on thin films of zinc oxide (ZnO) and platinum (Pt) using a powder x-ray diffractometer, and also, in the case of...

Morphological Study of Dendritic Polymer Templates for the Formation of Inorganic Nanoclusters in Amorphous and Crystalline Polymer Composites

May 1, 2002

Author(s)

G Kim, F Groehn, B D. Viers, Barry J. Bauer, Eric J. Amis

In this study, the morphological behavior of PAMAM dendrimers as stabilizers and templates for the formation of inorganic nanoclusters in amorphous and...

Modeling of Anisotropic Shrinkage During Sintering of Low Temperature Cofired Ceramic Tapes

May 1, 2002

Author(s)

J Blendell, M R. Locatelli, Jay S. Wallace, B Hockey

One of the critical issues in advancing the use of cofired ceramic tape in electronic applications is the reproducibility of the shrinkage of the green tapes...

Atomic Oscillator Strengths by Emission Spectroscopy and Lifetime Measurements

May 1, 2002

Author(s)

Wolfgang L. Wiese, Ulf Griesmann, R Kling, J Musielok

A series of atomic oscillator strengths measurements was carried out in the last seven years at NIST with a combination of emission spectroscopy and lifetime...

Propagation of Detector-Based Photometric and Color Scales Using a Spectrally Tunable LED-Source

May 1, 2002

Author(s)

George P. Eppeldauer, Steven W. Brown

Improved accuracy photometric and tristimulus color scales are being developed at NIST utilizing the very low uncertainty of novel spectral responsivity...

Dose Meter Calibration System for 193 nm

May 1, 2002

Author(s)

Holger Laabs, Richard D. Jones, Marla L. Dowell

We have established a measurement system for the direct calibration of energy density (dose) meters. It consists of beam-shaping objects, a beamsplitter...

Raman and Magneto Transport Studies of MBE Grown B-FeSi2, B-(Fe1-xCrx)Si2, and B-(Fe1-xCox)Si2

May 1, 2002

Author(s)

A Srujana, A Wadhawan, K Srikala, R L. Cottier, W Zhao, Christopher Littler, J M. Perez, T D. Golding, Anthony G. Birdwell, W Henrion, M Rebien, P Stauss, R Glosser

IEEE 802.11 FHSS Receiver Design for Multihop Sensor Application

May 1, 2002

Author(s)

K Ban, Hamid Gharavi

This paper presents a receiver design for IEEE 802.11 FHSS (Frequency-Hopping Spread-Spectrum) wireless local area network systems. 802.11 FHSS systems support...

Video Communications Via Multihop Ad-Hoc Networks: Design and Implementation

May 1, 2002

Author(s)

Hamid Gharavi, K Ban

This paper presents the design and implementation of a mobile ad-hoc network for video communications. The network architecture is based on cluster-to-cluster...

Video Transmission for Multi-Hop Networks Using IEEE 802.11 FHSS

May 1, 2002

Author(s)

K Ban, Hamid Gharavi

In many applications such as construction, manufacturing, ground robotic vehicles, and rescue operations, there are many issues that necessitate the capability...

Hyperborders in the Voronoi-Diagram-Based Neural Net for Pattern Classification

May 1, 2002

Author(s)

Camillo Gentile, M Sznaier

We propose a neural network to answer a point query in Rn partitioned based on the Voronoi diagram. Our novel design offers the potential to reduce both the...

Probing Surface and Bulk Chemistry in Resist Films Using Near Edge X-Ray Absorption Fine Structure

May 1, 2002

Author(s)

Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, Ronald L. Jones, Eric K. Lin, Christopher Soles, Wen-Li Wu, Daniel A. Fischer, S Sambasivan, D L. Goldfarb, M Angelopoulos

Control of the shape, critical dimension (CD), and roughness is critical for the fabrication of sub 100 nm features, where the CD and roughness budget are...

Making and Measuring vibrational Wave Packets in Small Molecules Through Non-Resonant Impulsive Stimulated Raman Scattering

May 1, 2002

Author(s)

D A. Samuels, T C. Weinacht, O L. Monti, E Gershgoren, S R. Leone, H C. Kapteyn, M M. Murnane, R A. Bartels

This paper discusses the creation and measurement of large amplitude, impulsively excited vibrational wave packets in small polyatomimolecules (CO 2, SF 6, CCI...

Spectral Responsivity Determination of a Transfer-Standard Pyroelectric Radiometer

May 1, 2002

Author(s)

J Racz, George P. Eppeldauer

A NIST-Developed pryoelectric radiometer was characterized and calibrated to extend the NIST high accuracy spectral responsively scale from the visible range to...

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