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NIST Authors in Bold

Displaying 16201 - 16225 of 73697

Magnetic phases of spin-1 spinorbit-coupled Bose gases

May 1, 2016
Author(s)
Ian B. Spielman, Daniel Campbell, Ryan Price, Ana Valdes-Curiel, Andika Putra, Dimitrius Trypogeorgos
Phases of matter are characterized by order parameters describing the type and degree of order in a system. Here we experimentally explore the magnetic phases present in a near-zero temperature spin-1 spin–orbit-coupled atomic Bose gas and the quantum

Membrane Binding of HIV-1 Matrix Protein: Dependence on Bilayer Composition and Protein Lipidation

May 1, 2016
Author(s)
Marilia Barros, Frank Heinrich, Siddhartha A. K. Datta, Alan Rein, Ioannis Karageorgos, Hirsh Nanda, Mathias Loesche
Retroviral Gag polyprotein is the structural determinant that assembles in a protein lattice on the host's plasma membrane to trigger formation of the viral protein/membrane shell. In this process, it employs multiple signals - electrostatic, hydrophobic

Probing the Interfacial Structure of Bilayer Plasma Polymer Films via Neutron Reflectometry

May 1, 2016
Author(s)
Yali Li, Andrew Nelson, Christopher D. Easton, David R. Nisbet, John S. Forsythe, Benjamin Muir, Dan A. Neumann
Bilayer plasma polymer (PP) films were examined using a combination of X-ray and neutron reflectometry and X-ray photoelectron spectroscopy to gain an understanding of the interfacial structures that form between the films. Three different PP films were

They Know Your Weaknesses Do You?: Reintroducing Common Weakness Enumeration

May 1, 2016
Author(s)
Yan Wu, Yaacov Yesha, Irena Bojanova, Paul E. Black
Knowing what makes your software systems vulnerable to attacks will be exceptionally critical in the emerging future of interdependent clouds, cyber-physical systems, mobile apps, and big data sets. The Common Weakness Enumeration (CWE) is a respectable

Analysis and Optimization based on Reusable Knowledge Base of Process Performance Models

April 29, 2016
Author(s)
Alexander Brodsky, Guodong Shao, Mohan Krishnamoorthy, Anantha Narayanan Narayanan, Daniel Menasce?, Ronay Ak
In this paper, we propose an architectural design and software framework for fast development of descriptive, diagnostic, predictive, and prescriptive analytics solutions for dynamic production processes. The proposed architecture and framework will

Diagnostics for geometric performance of machine tool linear axes

April 29, 2016
Author(s)
Gregory W. Vogl, M A. Donmez, Andreas Archenti
Machine tools degrade during operations, yet knowledge of degradation is elusive; accurately detecting degradation of linear axes is mainly a manual and time-consuming process. Thus, manufacturers need automated and efficient methods to diagnose the

Intensity Ratio of Resonant Raman Modes for (n,m) Enriched Semiconducting Carbon Nanotubes

April 29, 2016
Author(s)
Yanmei Piao, Jeffrey R. Simpson, Jason K. Streit, Geyou Ao, Ming Zheng, Angela R. Hight Walker
Relative intensities of resonant Raman spectral features, specifically the radial breathing mode (RBM) and G modes, of eleven chirality-enriched single-wall carbon nanotube (SWCNT) species were established under second-order optical transition excitation

Bottom-Up Colloidal Crystal Assembly with a Twist

April 28, 2016
Author(s)
Nathan Mahynski, Lorenzo Rovigatti, Christos Likos, Athanassios Panagiotopoulos
Globally ordered colloidal crystal lattices have broad utility in a wide range of optical and catalytic devices, for example, as photonic bandgap materials. However, the self-assembly of stereospecific structures is often confounded by polymorphism. Small

Hardware Security Thorough Supply Chain Assurance

April 28, 2016
Author(s)
Yaw S. Obeng, David A. Brown, Colm Nolan
This paper examines the current issues pertaining to the hardware security and how they could affect the overall security of applications such as the internet of things. Specifically, we review the ongoing industry-led activities aimed at mitigating the

Optical Fluorescence Microscopy for Spatially Characterizing Electron Transfer across a Solid-Liquid Interface on Heterogeneous Electrodes

April 28, 2016
Author(s)
Eric A. Choudhary, Jeyavel Velmurugan, James M. Marr, James A. Liddle, Veronika A. Szalai
Heterogeneous catalytic materials and electrodes are used for (electro)chemical transformations, including those important for energy storage and utilization. Due to the heterogeneous nature of these materials, activity measurements with sufficient spatial

Phase-resolved ferromagnetic resonance using heterodyne detection method

April 28, 2016
Author(s)
Seungha Yoon, Hau Jian Liu, Robert D. McMichael
This paper describes a phase-resolved ferromagnetic resonance (FMR) measurement using a heterodyne method. Spin precession is driven by microwave fields and detected by 1550 nm laser light that is modulated at a frequency slightly shifted with respected to

Rapid Fabrication of Poly(DL-lactide) Nanofiber Scaffolds with Tunable Degradation for Tissue Engineering Applications by Air-brushing

April 28, 2016
Author(s)
Adam M. Behrens, Jeffrey J. Kim, Nathan A. Hotaling, Jonathan Seppala, Peter Kofinas, Wojtek J. Tutak
Polymer nanofiber based materials have been widely investigated for use as tissue engineering scaffolds. While promising, these materials are typically fabricated through techniques that require significant time or cost. Here we report a cost effective

Report on Post-Quantum Cryptography

April 28, 2016
Author(s)
Lidong Chen, Stephen P. Jordan, Yi-Kai Liu, Dustin Moody, Rene C. Peralta, Ray A. Perlner, Daniel C. Smith-Tone
In recent years, there has been a substantial amount of research on quantum computers - machines that exploit quantum mechanical phenomena to solve mathematical problems that are difficult or intractable for conventional computers. If large-scale quantum

Status of the Liquid Deuterium Cold Neutron Source for the NIST Research Reactor

April 28, 2016
Author(s)
Robert E. Williams, Michael Middleton, Paul Kopetka, J. Michael Rowe, Paul C. Brand
The NBSR is a 20 MW research reactor operated by the NIST Center for Neutron Researcher (NCNR) as a neutron source providing beams of thermal and cold neutrons for research in materials science, fundamental physics and nuclear chemistry. A large, 55 cm
Displaying 16201 - 16225 of 73697
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