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Confidence intervals quantify the uncertainty in an average and o↵er a robust alternative to hypothesis testing. We measure the performance of standard and...
Allan D. Carlson, V G. Pronyaev, R. Capote, G M. Hale, F. J. Hambsch, T Kawano, S. Kunieda, W Mannhart, R O. Nelson, D. Neudecker, P Schillebeeckx, S Simakov, P Talou, X Tao, D. L. Smith, W Wang, A. Wallner
A number of national cross section libraries are planning new versions of their libraries including ENDF/B and JEFF. The first step in producing these new...
Kevin L. Mills, James J. Filliben, Junfei Xie, Yan Wan, Yi Zhou, Yu Lei
Effective uncertainty evaluation is a critical step toward real-time and robust decision-making for complex systems in uncertain environments. A Multivariate...
This paper proposes a neurobiology-based extension of integrate-and-fire models of Radial Basis Function Neural Networks (RBFNN) that adapts to novel stimuli by...
Julyan Stoian, Tandre Oey, Jeffrey W. Bullard, Jian Huang, Aditya Kumar, Magdalena Balonis, Narayanan Neithalath, Gaurav Sant
Ordinary portland cement (OPC) prehydrates during storage or handling in moist environments, forming hydration products on or near its particles' surfaces...
Tomasz P. Bednarz, John Taylor, Tony Huang, Wesley N. Griffin, Steven G. Satterfield, Judith E. Terrill, John G. Hagedorn
This work showcases four examples of scientific visualizations across various domains of research and science that were prepared at CSIRO in Australia, and NIST...
Michael A. Lombardi, Judah Levine, Jose M. Lopez, Francisco Jimenez, John Bernard, Marina Gertsvolf, Harold Sanchez, Oscar G. Fallas, Liz C. Hernandez Ferero, Ricardo de Carvalho, Mario Fittipaldi, Raul Solis, Franklin Espejo
This paper describes a recently designed system that measures the time transmitted by network time protocol (NTP) servers located in North, Central, and South...
Nowadays, more and more dual-frequency, multichannel receivers are used in GPS time and frequency transfer applications. Instead of using the modeled ionosphere...
There is a need to back up critical timing infrastructure at the national level. This presentation describes a joint project employing commercial equipment to...
The wide application of GPS carrier-phase (CP) time transfer is limited by the problem of boundary discontinuity (BD). The discontinuity has two categories. One...
A previously developed simulator for noise-parameter measurements has been used in an extensive investigation and comparison of different measurement strategies...
We discuss developments at NIST towards improving the passive microwave brightness temperature standard. By reducing uncertainty we can provide a better...
Prem K. Rachakonda, Daniel S. Sawyer, Balasubramanian Muralikrishnan, Christopher J. Blackburn, Craig M. Shakarji, Gregory F. Strouse, Steven D. Phillips
The Dimensional Metrology Group (DMG) at the National Institute of Standards and Technology (NIST) has the capability to perform large range dimensional...
Many advanced manufacturing processes employ scanning electron microscopes (SEM) for on-line critical measurements for process and quality control. This is the...
The development of the metrology and standards for advanced manufacturing of cellulosic nanomaterials (or basically, wood-based nanotechnology) is imperative to...
Jennifer R. Bergstrom, Kristen K. Greene, David C. Hawkins, Christian Gonzalez
While measuring physiological responses is a common practice in the field of neuroscience, it is rare in the usability arena and in password usability studies...
Wildfires that spread into communities, referred to as Wildland-Urban Interface (WUI) fires, have destroyed communities throughout the world. In the USA, over...
Katharine M. Shilling, Balasubramanian Muralikrishnan, Daniel S. Sawyer
The proliferation of laser scanners in a number of industries such as the metrology of large artifacts, digitization and reverse engineering, historical...
Balasubramanian Muralikrishnan, Katharine M. Shilling, Daniel S. Sawyer, Prem K. Rachakonda, Vincent D. Lee, Steven D. Phillips, Geraldine S. Cheok, Kamel S. Saidi
Geometric misalignments within the construction of a laser scanner such as offsets, tilts, and eccentricities, result in systematic errors in the measured point...
Prem K. Rachakonda, Balasubramanian Muralikrishnan, Vincent D. Lee, Daniel S. Sawyer, Steven D. Phillips, John Palmateer
The Dimensional Metrology Group (DMG) at the National Institute of Standards and Technology (NIST) is involved in the development of documentary standards for...
Chung Tong Hu, Timothy Grance, David F. Ferraiolo, David R. Kuhn
Access Control (AC) systems are among the most critical of network security components. A system's privacy and security controls are more likely to be...
The 245th American Chemical Society (ACS) Meeting and Exposition was held in Morial Convention Center, New Orleans, Louisiana, on April 7-11, 2013. This...
Leon S. Chao, Frank C. Seifert, Shisong Li, Darine El Haddad, Stephan Schlamminger, Jon R. Pratt
A watt balance is an electromagnetic force balancing instrument to realize the unit of mass at the kilogram level. The magnet system is one of the key...
Jon R. Pratt, Stephan Schlamminger, David B. Newell, Leon S. Chao, Zeina J. Kubarych, Patrick J. Abbott, Yusi A. Cao, Frank C. Seifert, Darine El Haddad
NIST recently used a watt balance instrument known as NIST-3 to measure the Planck constant in terms of IPK with a relative uncertainty of approximately 45...
Paul A. Lane, Paul D. Cunningham, Joseph S. Melinger, Edwin J. Heilweil
We present a study of charge transfer and carrier dynamics in nano-films of zinc phthalocyanine (ZnPc) and buckmisnster¬fullerene (C60) by investigated by time...
A unitary operator that satisfies the constant Yang-Baxter equation immediately yields a unitary representation of the braid group Bn for every n ≥ 2. If we...
Emre H. Brookes, Nadeem Anjum, Joseph E. Curtis, Suresh Marru, Raminder Singh, Marlon Pierce
A new framework (GenApp) for rapid generation of scientific applications running on a variety of systems including science gateways has recently been developed...