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This report describes some measures of combinatorial coverage that can be helpful in estimating this risk that we have applied to tests for spacecraft software
Traceability of interferometric form measurements requires characterization of the reference wavefront. We investigate absolute tests for spherical surfaces
We describe a method for measuring the deflection due to gravity (sag) of horizontally mounted reference flats of phase shifting interferometers. The planarity
John T. Woodward IV, Keith R. Lykke, Claire E. Cramer, John T. McGraw, Peter Zimmer, Daniel C. Zirzow, Susana Deustua, Dean Hines
NIST-calibrated detectors will be used by the ground-based 100mm diameter Astronomical Extinction Spectrophotometer (AESoP) to calibrate the spectral energy
P J. Phillips, Jingjing Zheng, Zhuolin Jiang, Rama Chellappa
Discriminative appearance features are effective for recognizing actions in a fixed view, but generalize poorly to changes in viewpoint. We present a method for
Over the past two decades, the Sensor Science Division at the National Institute of Standards and Technology (NIST) has developed extensive capabilities for the
Robert L. Amaro, Elizabeth S. Drexler, Neha N. Rustagi, Nicholas Nanninga, Yaakov Levy, Andrew J. Slifka
A phenomenological fatigue crack growth (FCG) model has been proposed to predict the FCG of API-5L X100 steel in high-pressure gaseous hydrogen [1]. The model
Andrew J. Slifka, Elizabeth S. Drexler, Neha N. Rustagi, Damian S. Lauria, Joseph D. McColskey, Robert L. Amaro
Fatigue crack growth tests were conducted on two API 5L X52 pipeline steel alloys. One alloy was from a new linepipe that was installed for hydrogen service in
High-precision spheres have many applications in precision engineering and metrology, such as the calibration of transmission spheres for interferometry
The diameter variation and refractive index inhomogeneity of a fused silica sphere were measured with a frequency-shifting Fizeau interferometer in a four
Many of todays extremely complex meta-systems are cross-domain, they require development by multiple stakeholder groups with different goals each implementing
graphics system that is integrated seamlessly with web browsers. Users can select anthropometric landmarks and learn their names, view the body from many points
TO HAVE CONFIDENCE IN THE KNOWLEDGE GLEANED FROM DATA, IT IS ESSENTIAL TO VERIFY THE QUALITY OF THE DATA SOURCES AND TO HAVE A MEANS OF QUANTIFYING THE
The low-ohmic resistance measurement capa¬bilities of VSL and NIST were compared using a set of resistors with values 100 mOhm, 10 mOhm, 1 mOhm, and 100 mOhm
When measuring standard resistors at different ratios with a Direct Current Comparator (DCC) incorporating Current Range Extenders (CREs) how do you know the
Many new systems have been proposed which hide an easily invertible multivariate quadratic map in a larger structure by adding more variables and introducing
John J. Bollinger, Joseph W. Britton, Brian C. Sawyer
By employing forces which depend on the internal atomic state (or spin) of an atomic ion, the Coulomb potential energy of a strongly coupled array of ions can
Christopher C. White, Donald L. Hunston, Kar T. Tan
Previous industry consensus postulated that four elements of the weather: Temperature, Humidity, Ultraviolet Radiation, and Mechanical loading were responsible
Esther Baumann, Fabrizio R. Giorgetta, Ian R. Coddington, Kevin O. Knabe, Laura C. Sinclair, William C. Swann, Nathan R. Newbury
A frequency-comb and MEMS-based external-cavity laser are integrated into a THz-bandwidth LIDAR system. Range to a diffuse target is measured at sub-msec update
Yaw S. Obeng, Chukwudi A. Okoro, Joseph J. Kopanski
The traditional models and techniques for studying reliability in integrated circuits may not be appropriate for nanoelectronics and nanosystems. In this paper
Timothy J. Burns, Steven P. Mates, Richard L. Rhorer, Eric P. Whitenton, Debasis Basak
Numerical finite-difference simulations of a two-dimensional transient fast convection-slow diffusion model of the temperature field in orthogonal cutting, due
Virtualization-related components (such as Hypervisor, Virtual Network and Virtual Machines (VMs)) in a virtualized data center infrastructure need effective
Matthew T. Hunley, Fahriye N. Sari, Kathryn L. Beers
As the research interest in degradable polymers has risen, an ever increasing number of manuscripts report the synthesis of copolymers through ring-opening
Mahesh Mani, Jatinder Madan, Jae H. Lee, Kevin W. Lyons, Satyandra K. Gupta
Manufacturing industries lack the measurement science and the needed information base to measure and effectively compare performances of manufacturing processes
Jeremy A. Marvel, Marek Franaszek, Jessica Wilson, Tsai Hong Hong
Low-cost 3D depth and range sensors are steadily becoming more widely available, affordable, and thus popular for robotics enthusiasts. As basic research tools
Sustainable manufacturing (SM) has become an emerging environmental, economic, societal, and technological challenge to the industry, the academia, and the
Jinan Zeng, George P. Eppeldauer, Leonard M. Hanssen, Vyacheslav B. Podobedov
Spectral responsivity calibrations of two different type pyroelectric radiometers have been made in infrared region up to 14 μm in power mode using three