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Search Publications

NIST Authors in Bold

Displaying 12951 - 12975 of 73751

A Methodology for Estimating Seismic Retrofit Costs

September 28, 2017
Author(s)
Juan F. Fung, David T. Butry, Siamak Sattar, Steven L. McCabe
Presidential Executive Order 13717 (EO 13717), Establishing a Federal Earthquake Risk Management Standard, encourages federal agencies to ”enhance resilience...[to] future earthquakes” by evaluating and retrofitting existing federal buildings based on

Aperture Arrays for Subnanometer Calibration of Optical Microscopes

September 28, 2017
Author(s)
Craig Copeland, Craig McGray, Jon Geist, James Alexander Liddle, Robert Ilic, Samuel Stavis
We fabricate and test subresolution aperture arrays as calibration devices for optical localization microscopy. An array pitch with a relative uncertainty of approximately three parts in ten thousand enables magnification calibration with subnanometer

Deep Silicon Etching for X-Ray Diffraction Devices Fabrication

September 28, 2017
Author(s)
Houxun Miao, Mona Mirzaeimoghri, Lei Chen, Han Wen
We report deep reactive ion etching of silicon gratings via cryogenic and Bosch processes. An aspect ratio of > 50 is achieved for 400 nm period gratings with both processes.

Double-shear tests of high-strength structural bolts at elevated temperatures

September 28, 2017
Author(s)
Rafaela Peixoto, Mina S. Seif, Luiz Vieira
The behavior of high-strength structural steel at elevated temperatures, especially under shear loading, is not well established in the literature. This paper presents results from recently conducted tests on high-strength structural bolts subject to

Framework for Cyber-Physical Systems: Volume 3, Timing Annex

September 28, 2017
Author(s)
David A. Wollman, Marc A. Weiss, YaShian Li-Baboud, Edward R. Griffor, Martin J. Burns
Cyber-Physical Systems (CPS) comprise interacting digital, analog, physical, and human components engineered for function through integrated physics and logic. NIST established the CPS Public Working Group (CPS PWG) to bring together a broad range of CPS

Identifying Evidence for Implementing a Cloud Forensic Analysis Framework

September 28, 2017
Author(s)
Changwei Liu, Anoop Singhal, Duminda Wijesekera
Cloud computing provides several benefits to organizations such as increased flexibility, scalability and reduced cost. However, it provides several challenges for digital forensics and criminal investigation. Some of these challenges are the dependence of

Local structural distortions in strained BaSrTiO3 thin films

September 28, 2017
Author(s)
Joseph C. Woicik, Eric L. Shirley, Keith Gilmore, K E. Andersen, C S. Hellberg
The local atomic structures in Ba0.5Sr0.5TiO3 thin films grown on MgO(001) substrates have been determined by density functional theory calculations and Ti K-edge x-ray absorption fine-structure measurements. Films with either c > a or c

Small Changes Yield Large Results at NIST's Net-Zero Energy Residential Test Facility

September 28, 2017
Author(s)
Arthur H. Fanney, William V. Payne, Joshua D. Kneifel, Lisa C. Ng, Brian P. Dougherty, Tania Ullah, William M. Healy, Farhad Omar
The National Institute of Standards and Technology (NIST) has embarked on a multi-year project to establish that a residence can generate, through the use of renewables, the same amount of energy as it consumes while meeting the energy needs of a typical

Using Sensor Feedback to Accurately Estimate Part Pose in Gripper

September 28, 2017
Author(s)
Nithyananda Bhat Kumbla, Jeremy Marvel, Satyandra K. Gupta
High volume manufacturing use custom made fixtures during assembly operations. Small volume manufacturing cannot use fixtures in order to keep setup time and production cost low. The performance of the task in fixture-less assemblies depends on the

Direct Observation of Magnon-Phonon Coupling in Yttrium Iron Garnet

September 27, 2017
Author(s)
Haoran Man, Zhong Shi, Guangyong Xu, Yadong Xe, Xi Chen, Sean Sullivan, Jianshi Zhou, Ke Xia, Jing Shi, Pengcheng Dai
The magnetic insulator Yttrium Iron Garnet (YIG) with a ferrimagnetic transition temperature of 560 K has been widely used in microwave and spintronic devices. Anomalous features in the spin Seeback effect (SSE) voltages have been observed in Pt/YIG and

Selective Gas Adsorption in Highly Porous Chromium(II)-Based Metal-Organic Polyhedra

September 27, 2017
Author(s)
Gregory R. Lorzing, Benjamin Trump, Craig Brown, Eric D. Bloch
The synthesis and characterization of two novel chromium(II)-based cuboctahedral metal-organic polyhedra is reported. The alkane functionalized analog, Cr_ tBu-bdc ( tBu-bdc = 5-tertbutylbenzene-1,3-dicarboxylate) exhibits excellent thermal stability

Timestamp Temporal Logic (TTL) for Time Testing of Cyber-Physical Systems

September 27, 2017
Author(s)
Mohammadreza Mehrabian, Mohammad Khayatian, Aviral Shrivastava, John Eidson, Patricia Derler, Hugo A. Andrade, Ya-Shian Li-Baboud, Edward Griffor, Marc A. Weiss, Kevin Stanton
In order to test the performance and verify the correctness of Cyber-Physical Systems (CPS), the timing constraints on the system behavior must be met. Signal Temporal Logic (STL) can efficiently and succinctly capture the timing constraints on a given

Updating the Keys for DNS Security

September 27, 2017
Author(s)
Scott W. Rose, Larry Feldman, Gregory A. Witte
To help maintain the reliability and integrity of the Internet’s Domain Name System (DNS), NIST is working with specialists from around the world to update the keys used by the DNS Security Extensions (DNSSEC) protocol to authenticate DNS data and avoid

Wireless Activities in the 2 GHz Radio Bands in Industrial Plants

September 27, 2017
Author(s)
Yongkang Liu, Nader Moayeri
Wireless connections are becoming popular in industrial environments that increasingly carry sensing and actuation data over the air. In industrial plants, activities of legacy wireless systems have shaped the channel usage in the radio spectrum bands for

A Network Measurement Framework for Named Data Networks

September 26, 2017
Author(s)
Davide Pesavento, Omar Ilias El Mimouni, Eric E. Newberry, Lotfi Benmohamed, Abdella Battou
In this poster, we propose a network measurement framework for NDN. We define the goals of network measurement and discuss how these goals can be achieved by identifying the necessary measurement operations that must be built on top of NDN's primitives

Assessment of extracellular vesicles purity using proteomic standards

September 26, 2017
Author(s)
Tingting Wang, Kyle Anderson, Illarion Turko
The increasing interest in extracellular vesicles (EVs) research is fueled by reports indicating their unique role in intercellular communication and potential connection to the development of common human diseases. The unique role assumes unique protein

In situ Angstrom-to-Micrometer Characterization of the Structural and Microstructural Changes in Kaolinite on Heating using Ultra-Small-Angle, Small-Angle, and Wide-Angle X-ray Scattering (USAXS/SAXS/WAXS)

September 26, 2017
Author(s)
Fan Zhang, Andrew J. Allen, Greeshma Gadikota
In this study, synchrotron-based in-operando multi-scale X-ray scattering analyses are used to connect the microstructural changes to the phase changes in kaolinite on heating from 30 °C to 1150 °C. Combined ultra-small-angle and small-angle X-ray

NDN-Trace: A Path Tracing Utility for Named Data Networking

September 26, 2017
Author(s)
Siham Khoussi, Davide Pesavento, Lotfi Benmohamed, Abdella Battou
In this paper we propose NDN-Trace, a path tracing utility to determine the characteristics of the available paths to reach a given name prefix in NDN-based networks. While the traceroute tool in IP networks is based on an iterative process, with each
Displaying 12951 - 12975 of 73751
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