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Displaying 15851 - 15875 of 17286

Learning in a Hierarchical Control System: 4D/RCS in the DARPA LAGR Program

December 29, 2006

Author(s)

James S. Albus, Roger V. Bostelman, Tommy Chang, Tsai H. Hong, William P. Shackleford, Michael O. Shneier

… terrain. Over many years, the National Institute of Standards and Technology (NIST) has developed a reference …

Nonparametric Analysis of Fingerprint Data on Large Data Sets

December 7, 2006

Author(s)

Jin Chu Wu, Charles Wilson

… fingerprint systems at the National Institute of Standards and Technology are provided. The nonparametric …

Apparatus for Wide-Ranging, High-Accuracy Fluid p-r-T Measurements Based on a Compact Two-Sinker Densimeter

September 28, 2006

Author(s)

Mark O. McLinden, Cornelia Losch-Will

… systems are detailed. The traceability to national standards and fundamental SI quantities is emphasized. The …

Learning in a Hierarchical Control System: 4D/RCS in the DARPA LAGR Program

June 26, 2006

Author(s)

James S. Albus, Roger V. Bostelman, Tommy Chang, Tsai H. Hong, William P. Shackleford, Michael O. Shneier

… terrain. Over many years, the National Institute of Standards and Technology (NIST) has developed a reference …

Soft magnetic layers for low-field-detection magnetic sensors

May 18, 2006

Author(s)

William F. Egelhoff Jr., Robert McMichael, Cindi L. Dennis, Mark D. Stiles, Freemon Johnson, Alexander J. Shapiro, Brian B. Maranville, Cedric J. Powell

We have investigated a wide variety of soft magnetic layers as sense layers for magnetic-field sensors. We find that in thin-film form, some of these soft materials can have susceptibilities (?) approaching those of the corresponding bulk material. In

Calibration and Characterization of a Low-Background Chamber in Support of Hardware-in-the-Loop Testing and Modeling of Infrared Seekers

April 21, 2006

Author(s)

Richard D. Tschiegg, Steven J. Conard, Patrick L. Thompson, Adriaan C. Carter

… conducted jointly by JHU/APL and the National Institute of Standards and Technology (NIST). In particular, this includes …

A Summary of Lightpipe Radiation Thermometry Research at NIST

April 1, 2006

Author(s)

Benjamin K. Tsai

… in semiconductor processing. The National Institute of Standards and Technology (NIST) has improved the calibration …

Ultraviolet Laser Damage of Carbon Nanotube Coatings on Thermal Detector Platforms

November 14, 2005

Author(s)

Darryl A. Keenan, Natalia Varaksa, Anne Dillon, Chaiwat Engtrakul, Stephen E. Russek, John H. Lehman

… detector platforms for laser power and energy measurement standards. These coatings must be resistant to damage and …

Critical-Current Measurements on ITER Nb3Sn Strands: Effect of Temperature

July 29, 2005

Author(s)

Loren F. Goodrich, Najib Cheggour, John (Jack) W. Ekin, Theodore C. Stauffer

Transport critical-current (II c) measurements were made on commercial multifilamentary Nb 3Sn strands at temperatures (T) from 4 to 17 K and magnetic fields (H) from 0 to 14 T. Samples investigated were taken from the stage 1 pre-production strand for the

Variable Pressure/Environmental SEM a Powerful Tool for Nanotechnology and Nanomanufacturing

January 1, 2005

Author(s)

Michael T. Postek, Andras Vladar

… nanoscale. It is imperative that a strong measurement and standards infrastructure be developed to support this work …

Analysis and Evaluation for STEP-Based Electro-Mechanical Assemblies: An Integrated Fuzzy AHP Approach

August 1, 2004

Author(s)

XuanFang Zha, Sebti Foufou, Sudarsan Rachuri, Ram D. Sriram

Assemblability analysis and evaluation play a key role in assembly design, assembly operation analysis and assembly planning. This paper proposes an integrated approach to assemblability analysis and evaluation for STEP-based (STandard for the Exchange of

Comparative Measurements of Slovenian and USA Rockwell C Hardness Scales

June 1, 2004

Author(s)

A -. Stibler, Samuel Low, R -. Ellis

… (ZAG) and USA as measured by the National Institute of standards and Technology (NIST) and the scale set up by a …

Spatial and Angular Responsivity Measurements of Photoconductive HgCdTe LWIR Radiometers

June 1, 2004

Author(s)

H Gong, Leonard Hanssen, George P. Eppeldauer

Several newly developed large area photoconductive (PC) mercury cadmium telluride (HgCdTe) radiometers have been tested for spatial and angular responsivity for the purpose of determining what mode of operation (or radiometr-ic quantity) could provide the

Assuring Semantic Consistency for Data Interchange: How XML Users Can Benefit From Using a Metadata Registry

February 1, 2004

Author(s)

J J. Newton

The adoption of XML as the data interchange format for the Web presents a set of challenges and opportunities for data managers. While XML makes it easy to describe the format of information objects and the relationships among them, it does nothing to

Shape-Sensitive Linewidth Measurements of Resist Structures

January 1, 2004

Author(s)

John S. Villarrubia, Andras Vladar, Michael T. Postek

Widths of developed 193 nm resist lines were measured by two methods and compared. One method was a new model-based library method. In this method the scanning electron microscope (SEM) images corresponding to various edge shapes are simulated in advance

Evaluation of One- and Two-Sided Geometric Fitting Algorithms in Industrial Software

September 1, 2003

Author(s)

Craig M. Shakarji

… measuring machines. Efforts at the National Institute of Standards and Technology (NIST) have been made to address …

Database-Assisted Design and Structural Reliability for Building Codes

May 1, 2003

Author(s)

S M. Diniz, Emil Simiu

We present a database-assisted design (DAD)-compatible probabilistic procedure for estimating (a)wind effects for any return period and (b) wind load factors. Unlike earlier reliability estimates, we account for the randomness of peak effects and for

Thin Films of Collagen Affect Smooth Muscle Cell Morphology

March 4, 2003

Author(s)

John T. Elliott, Alessandro Tona, John T. Woodward IV, P L. Jones, Anne L. Plant

The purpose of this study was to provide a reproducible method for applying collagen to surfaces on which cells can be grown, and to characterize the resulting thin films of collagen protein with respect to molecular structure and cellular response

Measured Versus Predicted Performance of Building Integrated Photovoltics

February 1, 2003

Author(s)

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

… integrated photovoltaic panels. The National Institute of Standards and Technology (NIST) has created a building …

Performance Evaluation of a Prototype Machine Tool for Machining Meso-scaled Parts

January 1, 2003

Author(s)

Bradley N. Damazo, M A. Donmez, Michael L. McGlauflin, J B. Werkmeister, Johannes A. Soons, S C. Bryant, Alex Slocum

… Machine Tool Metrology Group at the National Institute of Standards and Technology (NIST). This project is focused on …

Enthalpies of Formation of SrPbO 3 and Sr 2 PbO 4

December 1, 2002

Author(s)

R Klein, Lawrence P. Cook, Winnie K. Wong-Ng

Alkaline-earth plumbates are important accessory phases in (Bi,Pb)-Sr-Ca-Cu-O (BSCCO) high temperature superconductor materials. Reliable values for standard enthalpies of formation (D f H o) of the plumbates are therefore an essential part of the BSCCO

Preliminary Concept Trial of the Semi-Automated Paint Containment System

November 30, 2002

Author(s)

Richard J. Norcross

… Intelligent Systems Division of the National Institute of Standards and Technology (NIST) to construct a concept …

Measured Versus Predicted Performance of Building Integrated Photovoltaics

June 1, 2002

Author(s)

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

… integrated photovoltaic panels. The National Institute of Standards and Technology has created a building integrated …

Multi-Scale Microstructural Modeling to Predict Chloride Ion Diffusivity for High Performance Concrete

November 1, 2001

Author(s)

Dale P. Bentz, Edward J. Garboczi

… The goal of current research at the National Institute of Standards and Technology is to develop predictive equations …

The Effect of Statistical Fluctuation, Finite Size Error, and Digital Resolution on the Phase Percolation and Transport Properties of the NIST Cement Hydration Model

October 1, 2001

Author(s)

Edward J. Garboczi, Dale P. Bentz

… The National Institute of Standards and Technology (NIST) cement hydration model starts …

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