U.S. flag

An official website of the United States government

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.

Journals

The evolving optical frequency comb

Author(s)
Scott A. Diddams
Much as natural historians search for the first roots of our human race, curiosity drives the laser scientist to pursue the roots of his or her own field. This...

A Focused Chromium Ion Beam

Author(s)
Adam V. Steele, Brenton J. Knuffman, Jabez J. McClelland, Jon Orloff
With the goal of expanding the capabilities of focused ion beam microscopy and milling systems, we have demonstrated nanoscale focusing of chromium ions...

New Intermetallics YbAu2In4 and Yb2Au3In5

Author(s)
Peter C. Sebastian, James Salvador, Joshua B. Martin, Mercouri G. Kanatzidis
The intermetallic compounds YbAu2In4 and Yb2Au3In5 were obtained as single crystals in high yield from reactions run in liquid indium. Single crystal X-ray...

Cell Contact Guidance in Response to Nanopattern Shape and Height

Author(s)
Sheng Lin-Gibson, Jirun Sun, Nancy J. Lin, Jing N. Zhou, Hyun W. Ro, Christopher L. Soles, Marcus T. Cicerone, Yifu Ding
Understanding the correlation between cell contact guidance (CG) and nanoscale surface features is vital in designing advanced medical devices to manipulate...

The Roles of the Mise en Pratique for the Definition of the Kelvin

Author(s)
Dean C. Ripple, Richard Davis, Bernd Fellmuth, Joachim Fischer, Graham Machin, Terry Quinn, Peter Steur, Osamu Tamura, David R. White
The mise en pratique (“practical realization”) for the definition of the kelvin (MeP-K) was created by the Consultative Committee for Thermometry (CCT) in 2006...

A Wide Angle Neutron Spin Filter System Using Polarized 3He

Author(s)
Changbo Fu, Thomas R. Gentile, Wangchun Chen, Ross Erwin, Shannon M. Watson, Collin L. Broholm, Jose Rodriguez Rivera, Julia Scherschligt, G L. Jones
Polarized 3He neutron spin filters can operate over a wide neutron energy range and provide a large angular acceptance. A compact 3He neutron spin filter system...

A New Analysis of the False-Positive Rate of a Bloom Filter

Author(s)
Ken Christensen, Allen L. Roginsky, Miguel Jimeno
A Bloom filter is a space-efficient data structure used for probabilistic set membership testing. When testing an object for set membership, a Bloom filter may...

Reliability of Embedded and Cyber-Physical Systems

Author(s)
Ram Chillarege, Jeff Voas
Cyber-physical systems feature a tight combination of a system's computational and physical elements. Understanding how to assess and design trustworthiness...

In Trust we Trust

Author(s)
Keith Miller, Jeff Voas, Phillip Laplante
The term trust has had a well understood definition for centuries. However after e-trust came along, and then cloud, where e-trust is not sufficient due to the...

Dual frequency comb Fourier transform spectroscopy

Author(s)
Ian R. Coddington, William C. Swann, Nathan R. Newbury
Dual coherent frequency combs can be used in Fourier transform spectroscopy (FTS) to generate the full optical response of a sample with high frequency, and...

Localized Diffusive Motion on Two Different Time Scales in Solid Alkane Nanoparticles

Author(s)
Siao-Kwan Wang, E. Mamontov, Mengjun Bai, F.Y. Hansen, Haskell Taub, John R. Copley, Victoria Garcia Sakai, Goran Gasparovic, Timothy Jenkins, Madhu Sudan Tyagi, Kenneth W. Herwig, David B. Neumann, Wouter Montfrooij, U.G. Volkmann
High-energy-resolution quasielastic neutron scattering on three complementary spectrometers has been used to investigate molecular diffusive motion in solid...
Was this page helpful?