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.
Satyandra K. Gupta, Venkat Krovi, Craig I. Schlenoff
Manufacturing is the staged transformation of raw materials into finished goods (using human-labor, machines, tools, mechanical, chemical or biological...
Units are at the heart of science and technology. Most measurements require units to express their result. The International System of Units (SI) provides a...
This chapter discusses the statistics that are used to characterize the performance of clocks, oscillators, and the networks that are used to calibrate and...
Oxidatively induced damage to DNA occurs in living organisms by endogenously or exogenously generated reactive species including free radicals. Mounting...
Stephen E. Russek, Karl F. Stupic, Joshua R. Biller, Michael A. Boss, Kathryn E. Keenan, Elizabeth Mirowski
Magnetic Resonance Imaging (MRI) is based on radio frequency (RF) interrogation of the human body at frequencies between 40 MHz to 300 MHz. An RF transmitter...
Randall J. McDermott, Glenn P. Forney, Matthew S. Hoehler, Matthew F. Bundy, Lisa Y. Choe, Chao Zhang
The photograph on the left shows a large-scale experiment studying the interaction between fire and mechanically- loaded building elements performed during the...
The application of computational fluid dynamics to complex engineering flow problems necessitates the adoption of numerical algorithms that are accurate, robust...
The purpose of this chapter is to introduce the reader to the chalcogenide materials systems that host the topological insulator phase of quantum matter...
William J. Boettinger, C A. Handwerker, Frank W. Gayle
John Werner Cahn, retired Senior Fellow of the National Institute of Standards and Technology (NIST), died in Seattle, WA on March 14, 2016 at age 88. After...
Arthur S. Edison, Adrien Le Guennec, Frank Delaglio, Eriks Kupce
We present an overview of 13C-based NMR metabolomics. At first glance, the low sensitivity of 13C relative to 1H NMR might seem like too great an obstacle to...
Cell membranes are extraordinarily heterogeneous environments composed of a multitude of different molecules with many thousands of chemically distinct lipids...
Rebecca Eells, David Hoogerheide, Paul A. Kienzle, Mathias Loesche, Charles Majkrzak, Frank Heinrich
Neutron reflectometry is a powerful technique for probing the structure of lipid bilayer membranes and membrane-associated proteins. Measurements of the...
Jeffrey A. Fagan, Angela R. Hight Walker, Ming Zheng, Lefebvre Jacques, Paul Finnie
This chapter discusses the metrology i.e. the science of measurement of single-wall carbon nanotubes (SWCNTs) with optical methods. Professor Mildred (...
Spencer J. Breiner, Ram D. Sriram, Eswaran Subrahmanian
In this chapter we argue for the use of representations from category theory to support better models for complex systems, and provide an example of such an...
ABL simulations using LES have been performed to assess the suitability of the simulated flow for structural wind engineering applications. The governing...
Christopher C. White, Donald L. Hunston, Adam L. Pintar, James J. Filliben
Determination of Design Life in less than real time as eluded researchers for decades. Recently, ASTM has issued a new standard, ASTM C1850, that outlines a...
An understanding of the solution properties and phase behavior of natural and synthetic polyelectrolytes requires an understanding of the competitive...
Winnie K. Wong-Ng, Lan Li, Lawrence P. Cook, Kevin Huang
The book Materials and Processes for CO2 Capture, Conversion and Sequestration (CCS) which will be published by John Wiley & Sons, Inc., is a result of the...
A multi-scale understanding of CO2 interactions with natural materials is essential for engineering the safe and permanent storage of CO2 in geologic formations...
The final two elements in the process of wavenumber calibration of a spectrometer involve software processing. These are (a) the generation of a spectrum...
Exoskeletons are devices that can assist the human wearer's limbs to provide functional, normal or amplified human capabilities. Recent research on exoskeletons...
This book looks at the increasing interest in running microscopy processing algorithms on big image data by presenting the theoretical and architectural...
In this contribution, we study the orthogonality conditions satisfied by Al-Salam-Carlitz polynomials $U^(a)}_n(x;q)$ when the parameters $a$ and $q$ are not...