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Search Publications

NIST Authors in Bold

Displaying 12951 - 12975 of 73697

Development of a Cigarette Tobacco Filler Standard Reference Material

September 20, 2017
Author(s)
Lane Sander, Jeanita Pritchett, Laura J. Wood, Brian Lang, Stephen Wise, Matt J. Walters, T. Phillips, M. J. Holman, G. Lee, J. Lisko, B. Lane, L. Valentin, B. Kimbrell, S. Kuklenyik, S. Stanfill, C. Watson
A new tobacco filler Standard Reference Material (SRM) has been issued by the National Institute of Standards and Technology (NIST) in September 2016 with certified and reference mass fraction values for nicotine, N-nitrosonornicotine (NNN), 4-

Dimensional Measurement of Nanostructures with Scanning Electron Microscopy

September 20, 2017
Author(s)
Kristine A. Bertness
Scanning electron microscopy (SEM) is widely used for the measurement of dimensions of nanostructures. This document describes the calibration of SEM magnification using the ASTM E766-14 practice with NIST Reference Material (RM) 8820 and the calculation

Laser-Driven Calorimetry Measurements of Petroleum and Biodiesel Fuels

September 20, 2017
Author(s)
Cary Presser, Ashot Nazarian, Amit Millo
The thermochemical characteristics were determined for several National Institute of Standards and Technology Standard Reference Material petroleum-based and biodiesel fuels, using a novel laser-heating calorimetry technique. Measurements focused on the

Monte Carlo modelling of live-timed anticoincidence (LTAC) counting for Cu-64

September 20, 2017
Author(s)
Denis E. Bergeron, Ryan P. Fitzgerald
The radionuclide copper-64 is a promising candidate for nuclear medicine, but its complex decay creates challenges in the primary standardization of its activity. Monte Carlo simulations of live timed anticoincidence (LTAC) counting of 64Cu were used to

NanoUV-VIS: an interactive visualization tool for monitoring the evolution of optical properties of nanoparticles throughout synthesis reactions

September 20, 2017
Author(s)
Bryan Calderon Jimenez, Gabriel Sarmanho, Karen E. Murphy, Antonio R. Montoro Bustos, Jose R. Vega Baudrit
Engineered nanoparticles (NPs) are being used for a broad array of high technology applications including sensing, imaging, targeted drug delivery, bio-diagnostics, catalysis, optoelectronics and film growth seeding. The enhanced optical, electrical and

Quantum Randomness from Probability Estimation with Classical Side Information

September 20, 2017
Author(s)
Emanuel H. Knill, Yanbao Zhang, Peter L. Bierhorst
We develop a framework for certifying randomness from Bell test trials based on directly estimating the probability of the measurement outcomes with adaptive test supermartingales. The number of trials need not be predetermined, and one can stop performing

The Long-Term Maintenance of CFAST

September 20, 2017
Author(s)
Kevin B. McGrattan, Richard D. Peacock, Glenn P. Forney
Even though zone fire models may seem like yesterday’s news, they still play a vital role in many aspects of fire protection engineering. How do we maintain this technology as it moves from a topic of research to a case study in knowledge management?

LOW-GWP REFRIGERANTS FOR MEDIUM AND HIGH-PRESSURE APPLICATIONS

September 19, 2017
Author(s)
Piotr A. Domanski, Riccardo Brignoli, S J. Brown, Andrei F. Kazakov, Mark O. McLinden
The merits of an alternative refrigerant are established based on many attributes including environmental acceptance, chemical stability in the refrigeration system, low toxicity, flammability, efficiency and volumetric capacity. In an earlier work, these

3D Nanometrology Based on SEM Stereophotogrammetry

September 18, 2017
Author(s)
Vipin N. Tondare, John S. Villarrubia, Andras Vladar
Three-dimensional (3D) reconstruction of a sample surface from scanning electron microscope (SEM) images taken at two perspectives has been known for decades. However, this method has not been widely used in the semiconductor industry for 3D measurements

Analytical Methods and Development of Reference Materials for Toxic Metals and Metal Species in Food and Dietary Supplements

September 18, 2017
Author(s)
Stephen E. Long, Michael B. Ellisor, Frances Nilsen, Laura J. Wood, Karen E. Murphy, Lee L. Yu
Highly toxic metals such as arsenic, cadmium, lead and mercury are prevalent in the terrestrial and marine environments from both natural sources and anthropogenic activities. Contamination of food can often occur during agricultural production and food

Bound Electron Nonlinearity Beyond the Ionization Threshold

September 18, 2017
Author(s)
Jared K. Wahlstrand, Sina Zahedpour, H M. Milchberg
Using supercontinuum spectral interferometry, we measure the ionization induced optical phase shift in three noble gases and nitrogen and oxygen. Results largely support the standard model of filamentation.

Trichothiazole A, a dichlorinated polyketide featuring an embedded thiazole isolated from Trichodesmium thiebautii blooms

September 18, 2017
Author(s)
Tracey B. Schock, Peter D. Moeller, Rick Belisle, Christopher W. Via, Tracy A. Villareal, Kevin Beauchesne, Matthew J. Bertin, Paul Zimba
Mass spectrometry-guided isolation of the lipophilic extract of Trichodesmium thiebautii bloom material led to the isolation and structure characterization of a new thiazole-containing di-chlorinated polyketide (1). The structure of 1 was deduced using 1D

Chapter 10. Measurement of active nanoelectronic devices

September 17, 2017
Author(s)
Thomas M. Wallis, Pavel Kabos
Many of the most promising applications of nanomaterials involve active, nanoelectronic devices. For example, the intrinsic transport properties of single-walled, carbon nanotubes (CNTs) enable field effect transistors (FETs) that allow higher current

Chapter 11. Dopant profiling in semiconductor nanoelectronics

September 17, 2017
Author(s)
Thomas M. Wallis, Pavel Kabos
As nanoelectronic device dimensions are scaled down to atomic sizes, device performance becomes more and more sensitive to the exact arrangement of atoms, including individual dopants and defects, within the device. Thus, there is ongoing demand for

Chapter 12 Depth profiling

September 17, 2017
Author(s)
Thomas M. Wallis, Pavel Kabos
Microwave tomography is an active, developing research area. The objective is to visualize hidden, subsurface features through application of microwave radiation. Applications include ground penetrating radars (GPR) [1], defect spectroscopy in materials

Chapter 13. Dynamics of nanoscale magnetic systems

September 17, 2017
Author(s)
Thomas M. Wallis, Pavel Kabos
The topic of nanoscale magnetic systems is broad and could easily provide enough material for an entire book on its own. In this chapter, as in previous ones, we will focus on the nanoscale magnetic systems for which near-field scanning microwave
Displaying 12951 - 12975 of 73697
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