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X-ray mapping is one of the most popular modes for displaying information obtained with x-ray spectrometry performed in the scanning electron microscope...
Digitally-recorded electron-excited x-ray maps are processed in a variety of ways to improve the visibility of features. Scaling of the recorded signal to match...
A central theme of modern materials science has been the exploration of the relationship between the microstructure of a material and its macroscopic properties...
Ultrasonic technology is evolving rapidly. It offers prospects for improving flow measurements, for serving as transfer standards, and possibly for serving as a...
Boron is available commercially as high purity (> 0.995) crystalline pieces. Using metallographic sample preparation techniques, these crystalline pieces can be...
NIST served as the pilot laboratory for comparisons of air speed measurement capabilities in thirteen participating laboratories in the range of 0.3 to 15 m/s...
J D. Kessler, Lloyd A. Currie, Dale E. Newbury, Eric S. Windsor
Remote ice core, snow, and air filter samples can potentially profile past and present atmospheric characteristics, acting as media to preserve populations of...
Fatigue crack initiation in initially smooth, defect free samples of ductile metals almost always occurs at the free surface as a result of surface roughening...
Lawrence H. Robins, Albert J. Paul, C A. Parker, J C. Roberts, S M. Bedair, E L. Piner, N A. El-Masry
In xGa 1-xN films with x=0.06 to x=0.49 were characterized by optical transmittance, Raman, and photoluminescence excitation spectroscopies. Previous...
A brief overview of the 10 classes of polymer phase transitions is given. In each case the basic physics underlying the transition is given. Special attention...
C Donati, S C. Glotzer, P H. Poole, W Kob, S J. Plimpton
Using extensive molecular dynamics of an equilibrium, glass-forming Lennard-Jones mixture, we characterize in detail the local atomic motions. We show that...
Stroboscopic video microscopy is used to study the shear-induced deformation of micron-size polystyrene droplets dispersed in a continuous phase of polyethylene...
We examine the phenomenon of dynamical heterogeneity in computer simulations of an equilibrium, glass-forming liquid. We describe several approaches to quantify...
A model of relaxation in supercooled and polymer liquids is developed starting from an integral equation describing relaxation in liquids near thermal...
Ping-Shine Shaw, Keith R. Lykke, Thomas R. O'Brian, Arp Uwe, H H. White, Thomas B. Lucatorto, J L. Dehmer, Albert C. Parr, R Gupta
The combination of a cryogenic radiometer and synchrotron radiation enablesdetector scale realization in spectral regions that are otherwise difficult to access...
C Lugez, Francis J. Lovas, Jon T. Hougen, N Ohashi
Spectral data on K = 0 and 1 levels of the methanol dimer available from previous and present Fourier transform microwave measurements have been interpreted...
Zachary H. Levine, A R. Kalukin, S P. Frigo, I McNulty, M Kuhn
An Al-W-silica integrated circuit interconnect sample was thinned to several micro υ and scanned across a 200 nm focal spot of a Fresnel zone plate operating at...
We present a nonperturbative numerical evaluation of the one-photon electron self-energy for hydrogen like ions with low nuclear charge numbers Z = 1 to 5. Our...
Most integrated circuit interconnects are principally composed of a few metals, including aluminum alloyed with copper, tungsten, titanium, A1 3 Ti, and A1 2Cu...
Pairs of photons produced two at a time via optical parametric down-conversion have proved to be a useful tool for metrology. The status of three such...