An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Michael Brundage, William Z. Bernstein, KC Morris, John A. Horst
Key Performance Indicators (KPIs) are crucial for measuring and improving the performance of a manufacturing process. An especially critical aspect of...
Jonathan E. Hardis, Demetrios Matsakis, Blair Fonville
Due to the efforts of Henry Warren, inventor of the Telechron electric clock, electric power companies have been a source of time and frequency reference for...
The Citizen Broadband Radio Service (CBRS) band has three tiers of users. The General Authorized Access (GAA) has the lowest priority and operates without a...
Kevin Teichman, Steven Emmerich, Andrew K. Persily
Despite numerous efforts to encourage good indoor air quality (IAQ) in high-performing buildings, including several building rating programs, measured IAQ...
Azza Ben Mosbah, Timothy Hall, Michael R. Souryal, Hossam Afifi
In spectrum sharing, incumbents with sensitive parameters require full protection of their operations. The incumbent's protection includes the protection of its...
Thao T. Nguyen, Anirudha Sahoo, Michael R. Souryal, Timothy Hall
Spectrum sharing in the 3.5 GHz band between commercial and government users along U.S. coastal areas depends on an Environmental Sensing Capability (ESC), a...
Andree R. Charriere, Maria E. Nadal, Clarence Zarobila
The present work consists in developing a procedure which will allow to compare gloss values obtained from an angularly and spectrally resolved Bidirectional...
Gregory W. Hoth, John E. Kitching, Elizabeth A. Donley, Bruno M. Pelle
Light pulse atom interferometry can be used to realize high-performance sensors of accelerations and rotations. In order to broaden the range of applications of...
Estimates of the World Trade Center (WTC) towers response to wind by two North American wind engineering laboratories differed from each other by almost 40 %. A...
M Iancovici, Michael A. Riley, Fahim H. Sadek, Emil Simiu
Database-assisted design (DAD) was originally developed for low-rise buildings. In this paper we show that it applies to flexible high-rise buildings as well...
A simple sectioning method was applied to investigate the changes in the wear resistance of two thermally sprayed deposits, two yttrium-stabilized zirconia (YSZ...
Aline Granier, Tinh Nguyen, Alexander J. Shapiro, Jonathan W. Martin
The performance of polyurethane (PU) composites reinforced by isocyanate-functionalized multi-walled carbon nanotubes (NCO-fMWCNT) and isocyanate-functionalized...
The 48th Annual Denver X-ray Conference took place at Sheraton Steamboat Resort, Colorado, from August 2-6, 1999. This meeting was well attended, with a...
The thermal conductivity of AIN specimens doped with Y2O3(5 wt.%) was determined using the photothermal deflection technique. The results agree within 10% of...
V S. Nagarajan, S Jahanmir, B Hockey, Victoria Thompson
The effect of microstructure on the wear mechanisms of glass-ceramics and resin composites was studied. Wear tests on both types of materials were conducted...
The hole mobility and carrier lifetime of [alpha] mercuric iodide high energy radiation detectors have been enhanced through crystal growth in microgravity. The...
This paper addresses issues of fracture for materials in which large grains, exist in a matrix of much smaller grains. Materials used for optical components...
Low-speed friction experiments were conducted under boundary lubrication in a pin-on-disk tester. The 304 stainless steel disk had smooth areas alternating with...
Long-term service life of a load-bearing ceramic component such as a turbine blade atelevated temperatures is often controlled by the rates of nucleation and...
Winnie Wong-Ng, Lawrence P. Cook, Anthony J. Kearsley, A R. Roosen
Three types of liquids were found in the BSCCO system: transient, metastable, and stable liquids. The roles of these liquids are discussed with examples...
Accurate friction measurement at nanoscale is critical in reliable device design. Literature papers have reported different friction values for the same...
We have uncovered the fact that colloidal probes often have random surface features which when not properly accounted for, can significantly affect the...
K Zhang, G Rosenbaum, R Liu, G Bunker, C Y. Liu, Daniel A. Fischer
The development of Multilayer Analyzer Array Detector (MADD) for X-ray fluorescence is to eliminate the count rate limitation encountered with the multi-element...