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Search Publications

NIST Authors in Bold

Displaying 7651 - 7675 of 9858

Manufacturing Information Integration in Product Lifecycle Management (PLM)

August 1, 2004
Author(s)
Guixiu Qiao, Charles R. McLean
The research on manufacturing information integration in PLM calls for a new fundamental information technology to enable adaptive information representation and exchange between manufacturing applications. Four major problems are studied, including

Enhancing Virtual Product Representation for Advanced Design Repository Systems

June 1, 2003
Author(s)
Simon Szykman, Matt Bohm, RJ B. Stone
This paper describes the transformation of an existing set of heterogeneous product knowledge into a coherent design re-pository that supports product information archival, storage and reuse. Existing product information was analyzed and compared against

Testing for Imperfect Integration of Legacy Software Components

July 1, 2000
Author(s)
David W. Flater
In the manufacturing domain, few new distributed systems are built ground-up; most contain wrapped legacy components. While the legacy components themselves are already well-tested, imperfect integration can introduce subtle faults that are outside the

Data Probe: A Tool for EXPRESS-based Data

January 1, 1993
Author(s)
Katherine C. Morris
The problem of sharing data has many facets. The need to share data across multiple enterprises, different hardware platforms, different data storage paradigms and systems, and a variety of network architectures is growing. The emerging Standard for the

The NIST EXPRESS Toolkit: Design and Implementation

January 1, 1993
Author(s)
Don E. Libes
The NIST EXPRESS toolkit is a software library for building EXPRESS-related tools. EXPRESS is an ISO language for describing information models. EXPRESS descriptions are neutral to different data storage paradigms and systems on different hardware

Melting Points and Boiling Points for the Alkali Metals

February 29, 2024
Author(s)
Nikhila Narayana, Donald R. Burgess Jr.
In this work, we compiled, evaluated, and select recommended values for use for the melting points and boiling points of the alkali metals: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). Here we provide all of the

A Tabletop X-Ray Tomography Instrument for Nanometer-Scale Imaging: Reconstructions

April 14, 2023
Author(s)
Zachary H. Levine, Bradley Alpert, Amber Dagel, Joseph Fowler, Edward Jiminez, Nathan J. Nakamura, Daniel Swetz, Paul Szypryt, Kyle Thompson, Joel Ullom
We show three-dimensional reconstructions of a region of an integrated circuit from a 130 nm copper process. The reconstructions employ x-ray computed tomography, measured with a new and innovative high-magnification x-ray microscope. The instrument uses a

Assessment of Radiation Solver of Fire Simulation Models Using RADNNET-ZM

September 13, 2019
Author(s)
Wai Cheong Tam, Walter W. Yuen
The paper presents a neural-network based zonal method (RADNNET-ZM) for the analysis of radiative heat transfer in an arbitrary Cartesian enclosure with an isothermal, inhomogeneous, non-gray medium. The model accounts for the non-gray effect of absorbing

Influence of Knot Complexity on Glass-Formation in Ring Polymer Melts

March 13, 2019
Author(s)
Luis F. Vargas Lara, Beatriz Pazmino, Jack F. Douglas
We perform molecular dynamic simulations on a coarse-grained polymer melt to study the dynamics of glass-formation in ring polymer melts of variable knot complexity. After generating melts of non-concatenated polymeric rings having a range of minimum

Cyber-Physical Systems Framework

November 2, 2015
Author(s)
David A. Wollman
Two worlds that have operated independently—the digital and physical worlds—are now merging, creating opportunities that will transform many sectors of our society. These new smart systems are based on engineered interacting networks of physical and

The Number of Boolean Functions with Multiplicative Complexity 2

October 27, 2015
Author(s)
Magnus G. Find, Daniel C. Smith-Tone, Meltem Sonmez Turan
Multiplicative complexity is a complexity measure, which is defined as the minimum number of AND gates required to implement a given primitive by a circuit over the basis (AND, XOR, NOT), with an unlimited number of NOT and XOR gates. Implementations of

Physical and chemical characterization techniques for metallic powders

August 28, 2013
Author(s)
John A. Slotwinski, Paul E. Stutzman, Stephanie S. Watson, Edward J. Garboczi, Max A. Peltz, Chiara F. Ferraris
Systematic studies have been done on two different powder materials used for additive manufacturing: stainless steel and cobalt-chrome. An extensive array of characterization techniques were applied to these two powders. The physical techniques included

Feature Information Model for Disassembly

August 20, 2013
Author(s)
Shaw C. Feng
As sustainability becomes an important issue nowadays, disassembly becomes one of the key processes to turn out-of-service products into new or rebuilt products to save energy and materials. A disassembly process includes many subprocesses, such as

Significance Test with Data Dependency in Speaker Recognition Evaluation

July 25, 2013
Author(s)
Jin Chu Wu, Alvin F. Martin, Craig S. Greenberg, Raghu N. Kacker, Vincent M. Stanford
To evaluate the performance of speaker recognition systems, a detection cost function defined as a weighted sum of the probabilities of type I and type II errors is employed. The speaker datasets may have data dependency due to multiple uses of the same

Versus: A Framework for General Content-Based Comparisons

October 8, 2012
Author(s)
Peter Bajcsy, Antoine Vandecreme, Benjamin J. Long, Paul Khouri Saba, Joe Chalfoun, Luigi Marini, Rob Kooper, Michal Ondrejcek, Kenton McHenry, Smruti Padhy
Versus is a framework for the execution and dissemination of customizable content-based file comparison methods. Given digital objects such as files, database entries, or in-memory data structures, we are interested in establishing their proximity (i.e

Families of Elliptic Curves with Rational 3-torsion

January 30, 2012
Author(s)
Dustin Moody, Hongfeng Wu
In this paper we look at three families of elliptic curves with rational 3-torsion over a finite field. These families include Hessian curves, twisted Hessian curves, and a new family we call generalized DIK curves. We find the number of Fq-isogeny classes
Displaying 7651 - 7675 of 9858
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