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NIST Authors in Bold

Displaying 10676 - 10700 of 73832

Phonon Localization in Heat Conduction

December 21, 2018
Author(s)
M. N. Luckyanova, J. Mendoza, H. Lu, B. Song, S. Huang, J. Zhou, M. Li., Y. Dong, H. Zhou, J. Garlow, L. Wu, Brian Kirby, Alexander Grutter, Alex A. Puretzky, Y. Zhu, M. S. Dresselhaus, A. Gossard, G. Chen
We report localization-like behavior in phonon heat conduction observed both in measurement of the thermal conductivities of GaAs/AlAs superlattice (SL) thin films with interfacial disorder caused by ErAs nanodots randomly distributed at the interfaces

Spin Waves Across Three-Dimensional, Close-Packed Nanoparticles

December 21, 2018
Author(s)
Kathryn Krycka, James Jennings Rhyne, Samuel D Oberdick, Ahmed M. Abdelgawad, Julie A. Borchers, Yumi Ijiri, Sara A. Majetich, Jeffrey W. Lynn
Inelastic neutron scattering is utilized to measure the spin waves, or magnons, which arise from inter-particle coupling between 8.4 nm ferrite nanoparticles that are self-assembled into a close-packed lattice, yet physically separated by oleic acid

Threat Modeling for Cloud Infrastructures

December 21, 2018
Author(s)
Nawaf Alhebaishi, Lingyu Wang, Anoop Singhal
Today's businesses are increasingly relying on the cloud as an alternative IT solution due to its flexibility and lower cost. Compared to traditional enterprise networks, a cloud infrastructure is typically much larger and more complex. Understanding the

A Study of Capsule Endoscopy Orientation Estimation Using Received Signal Strength

December 20, 2018
Author(s)
Kamran Sayrafian, Katjana Krhac, Mehdi Alasti, Kamya Yazdandoost, Dina Simunic
Comprehensive study of wireless communication for ingestible electronics is a very challenging task. To initiate the study on wireless capsule endoscopy, an innovative immersive platform containing an enhanced 3D human body model has been developed. This

Evaluation of Nanoscale Accessible Pore Structures for Improved Prediction of Gas Production Potential in Chinese Marine Shales

December 20, 2018
Author(s)
Yang Wang, Yong Qin, Rui Zhang, Lilin He, Lawrence M Anovitz, Markus Bleuel, David F. Mildner, Shimin Liu, Yanming Zhu
The lower Cambrian Niutiang and Lower Silurian Longmaxi shales in the Upper Yangtze Platform (UYP) are considered as the most promising strata for shale gas exploration in China. To shed light on the study of evaluation of nanoscale pore structure for

Identification of dopant site and its effect on electrochemical activity in Mn-doped Lithium Titanate

December 20, 2018
Author(s)
Harischchandra Singh, Mehmet Topsakal, Klaus Attenkofer, Tamar Wolf, Michal Leskes, Yandong Duan, Feng Wang, John Vinson, Deyu Lu, Anatoly Frenkel
We observed significant battery rate performance drop of nearly 20% in 1% Mn doped Lithium Titanate (LTO) compared to the pristine LTO. Using a combination of the X-ray absorption near edge structure experiment with theoretical modeling we demonstrated

Impact of Measurement Points Distribution on the Parameters of UWB Implant Channel Model

December 20, 2018
Author(s)
Kamran Sayrafian, Sofia Perez-Simbor, Katjana Krhac, Concepcion GarciaPardo, Dina Simunic, Narcis Cardona
Sophisticated medical implants that allow vital information delivery to/from the human body are opening the door to novel approaches in diagnosis and/or therapy of various health related issues. Ultra-Wide Band (UWB) technology is gaining the attention of

Measurement Science Roadmap Workshop for Water Use Efficiency and Water Quality in Premise Plumbing Systems, August 1-2, 2018: Synthesis of a Workshop organized by the National Institute of Standards and Technology, U.S. Environmental Protection Agency, a

December 20, 2018
Author(s)
Robert Pickering, Kathleen Onorevole, Rob Greenwood, Sarah Shadid
In August 2018, the National Institute of Standards and Technology (NIST), the U.S. Environmental Protection Agency (EPA) WaterSense program, and the Water Research Foundation (WRF) organized a Measurement Science Roadmap Workshop for Water Use Efficiency

The Metrological Basis for MOBY

December 20, 2018
Author(s)
Bettye C. Johnson
The Marine Optical BuoY (MOBY) is a primary source of data for System Vicarious Calibration (SVC) of ocean color satellite sensors. I will present brief introduction to SVC followed by a short history of MOBY and the main features of its instrumentation

Thermodynamic assessment of the Co-Ta system

December 20, 2018
Author(s)
Peisheng Wang, J?rg Ko?mann, Ursula R. Kattner, Mauro Palumbo, Thomas Hammerschmidt, Gregory B. Olson
The Co-Ta system has been reviewed and the thermodynamic description was re-assessed in the present work. DFT (density functional theory) calculations considering spin polarization were performed to obtain the energies for all end-member configurations of

Time Synchronization over a Free-Space Optical Communication Channel

December 20, 2018
Author(s)
Isaac H. Khader, Laura C. Sinclair, William C. Swann, Hugo Bergeron, Nathan R. Newbury, Jean-Daniel Deschenes
Free space optical (FSO) communication channels are typically used to transmit high-speed data between sites over the air. Here we repurpose an FSO digital communication system and use it directly for two-way time transfer. We demonstrate real-time

Cooperative Dynamics in a Model DPPC Membrane Arise from Membrane Layer Interactions

December 19, 2018
Author(s)
Kiley Kennedy, Neha Shafique, Jack F. Douglas, Francis W. Starr
The dynamics of model membranes can be highly heterogeneous, especially in more ordered dense phases. Experimentally, monolayers are often studied as a model system to infer the properties of membranes. To better understand the origins of this

Helical Magnetism in Sr-Doped CaMn 7 O 12 Films

December 19, 2018
Author(s)
Amanda Huon, Anuradha M. Vibhakar, Alexander Grutter, Julie Borchers, Steven Disseler, Yaohua Liu, Wei Tian, Fabio Orlandi, Pascal Manuel, Dmitry D. Khalyavin, Yogesh Sharma, Andreas Herklotz, Ho Nyung Lee, Michael R. Fitzsimmons, Roger D. Johnson, Steven J. May
Noncollinear magnetism can play an important role in multiferroic materials but is relatively understudied in oxide heterostructures compared to their bulk counterparts. Using magnetometry and neutron diffraction, we demonstrate the presence of helical

Observation of antineutrinos from 235U fission by the PROSPECT experiment at HFIR

December 19, 2018
Author(s)
Mark A. Tyra, Denis E. Bergeron, Jerome J. LaRosa, Hans P. Mumm, Svetlana Nour
This letter reports the first observation of antineutrinos from the fission products of highly enriched 235U at the High Flux Isotope Reactor. PROSPECT, the Precision Reactor Oscillation and Spectrum Experiment, consists of a segmented 4 ton 6Li-doped

Securing Wireless Infusion Pumps

December 19, 2018
Author(s)
Gavin W. O'Brien
This bulletin summarizes the information found in NIST SP 1800-8: Securing Wireless Infusion Pumps in Healthcare Delivery Organizations which discusses the cybersecurity risks associated with medical devices, such as infusion pumps, which -- in today’s

3D Printing in Cell Culture Systems and Medical Applications

December 18, 2018
Author(s)
Max J. Lerman, Josephine Lembong, John G. Gillen, John P. Fisher
3D printing serves an important role in various biomedical research applications, including but not limited to culture systems and implantable devices. In this review, we discuss recent development in the applications of 3D printing technologies for

A Calibration of Timing Accuracy in the NIST Cyber-Physical Systems Testbed

December 18, 2018
Author(s)
Marc A. Weiss, YaShian Li-Baboud, Dhananjay Anand, Kevin G. Brady, Paul A. Boynton, Cuong T. Nguyen, Martin J. Burns, Avi M. Gopstein
We propose a general methodology for assessing the time accuracy and uncertainties and report results from a project to calibrate timing in the NIST CPS and Smart Grid Testbeds. We measured clock synchronization accuracy and stability as well as latencies

A New SCAP Information Model and Data Model for Content Authors

December 18, 2018
Author(s)
Joshua Lubell
The Security Content Automation Protocol (SCAP) data model for source data stream collections standardizes the packaging of security content into self-contained bundles for easy deployment. But no single data model can satisfy all requirements. The source
Displaying 10676 - 10700 of 73832
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