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Conferences

Color Quality Metrics Recent Progress and Future Perspective

July 30, 2016

Author(s)

Yoshihiro Ohno

The color quality of light sources for lighting includes the effects of white light chromaticity, as well as color rendition characteristics, including color...

High Resolution X-Ray Spectrometer for Precision EXAFS Measurements in the 6 keV to 15 keV Energy Range

July 29, 2016

Author(s)

Lawrence T. Hudson, John F. Seely, Albert Henins, Uri Feldman

A Cauchois transmission-crystal spectrometer has been developed with high crystal resolving power in the 6 keV to 15 keV energy range and sufficient sensitivity...

Dynamic Metrology and ASTM E57.02 Dynamic Measurement Standard

July 28, 2016

Author(s)

Roger V. Bostelman, Tsai H. Hong, Mili Shah, Steven Legowik

Optical tracking systems are used in a wide range of fields. The market for optical tracking systems has dramatically increased over the past several years to...

Machine Condition Detection For Milling Operations Using Low Cost Ambient Sensors

July 27, 2016

Author(s)

Anantha Narayanan Narayanan, Alec Kanyuck, Satyandra K. Gupta, Sudarsan Rachuri

In recent years, sensor technology and data mining capabilities have advanced greatly, allowing advanced manufacturing enterprises to closely monitor their...

On The Feasibility of Performing Line Scale Measurements on a High Accuracy Coordinate Measuring Machine

July 26, 2016

Author(s)

Wei Ren, Roy E. Sundahl, Theodore D. Doiron

This paper describes recent work in transitioning line scale measurements from an old LSI machine to a vision probe equipped Moore-M48 Coordinate Measuring...

Microstructural Differences as a Function of Specimen Position on Base Plate in Additive Manufactured Nickel Based Super Alloy

July 26, 2016

Author(s)

Yaakov S. Idell, Lyle E. Levine, Carelyn E. Campbell

Design of a Table-Top Watt Balance

July 26, 2016

Author(s)

Stephan Schlamminger, Jon R. Pratt, David B. Newell, Frank C. Seifert, Michael Liu, Leon S. Chao, Luis Manuel Pea Prez, Shisong Li, Darine El Haddad

Measurements of the Planck constant with watt balances using 1 kg masses have achieved relative standard uncertainties below 2 x 10-8. Having established a...

Durability of Carbon Nanotube Polymer-Fiber Composites

July 25, 2016

Author(s)

Aaron Forster, James Liddle, Donald Hunston, Ajay Krishnamurthy

Significant composite strength improvements have been achieved using highly aligned and dense carbon nanotube fibers with low resin concentration, but these...

Targets for Relative Range Error Measurement of 3D Imaging Systems.

July 25, 2016

Author(s)

Prem K. Rachakonda, Balasubramanian Muralikrishnan, Katharine M. Shilling, Geraldine S. Cheok, Vincent D. Lee, Christopher J. Blackburn, Dennis S. Everett, Daniel S. Sawyer

The Dimensional Metrology Group (DMG) at the National Institute of Standards and Technology (NIST) is performing research to support the development of...

Getting the units right

July 25, 2016

Author(s)

Howard S. Cohl, Moritz A. Schubotz, David Veenhuis

To understand applied physics, and physical formulae in particular, the investigation of identifier units is beneficial. However, normally the units are not...

Li Diffusion in All-Solid-State Batteries Imaged Through Optically and Electron Transparent Electrodes

July 24, 2016

Author(s)

Alexander Yulaev, Alec Talin, Leite Marina, Andrei Kolmakov

We report spatially- and depth-resolved study of Li intercalation into a thin-film solid electrolyte applying a combination of optical and electron microscopy...

Versatile fluidic cell for in-situ electrochemical measurements in SEM

July 24, 2016

Author(s)

Jeyavel Velmurugan, Ana Stevanovic, Feng Yi, David A. LaVan, Andrei Kolmakov

Electrochemical techniques such as like electrodeposition are crucially important for fabrication of nanostructured materials. The details of cluster nucleation...

Imaging in Liquids through Ultra-thin Membranes: A Comparative Analysis of Scanning Electron and Scanning Microwave Microscopies

July 24, 2016

Author(s)

Alexander Tselev, Jeyavel Velmurugan, Andrei Kolmakov

The ability of the near-field microwave microscopy to image subsurface structures has been realized shortly after the invention of the technique. Based on these...

Bridging the Pressure Gap in Electron Beam Induced Current Microscopy: Imaging Charge Transport in Metal Oxide Nanowires under Atmospheric Pressures

July 24, 2016

Author(s)

Ana Stevanovic, Jeyavel Velmurugan, Feng Yi, David A. LaVan, Andrei Kolmakov

We developed a versatile environmental cell for ambient pressure scanning electron microscopy (SEM) technique to study the interplay between surface reactivity...

Demultiplexing Spectrum-Sharing Field Sources with Distributed Field Probes

July 24, 2016

Author(s)

Dan Kuester, Ryan T. Jacobs, Yao Ma, Jason Coder

A complete characterization of multiple-device wireless interactions must include data relatable to the electromagnetic field radiated by each device under test...

Miniature atomic scaler magnetometer for space based on the rubidium isotope ⁸⁷Rb

July 22, 2016

Author(s)

Haje Korth, Kim Strohbehn, Francisco Tejada, Andreas G Andreou, John Kitching, Svenja A. Knappe, S. John Lehtonen, Shaughn M. London, Matiwos Kafel

A miniature absolute scalar magnetometer based on the rubidium isotope 87Rb was developed for possible future operation in space. The instrument design...

Application of mass spectrometry in the discovery of small molecule inhibitors of DNA repair proteins as potential anticancer drugs

July 20, 2016

Author(s)

M Miral Dizdar

Most therapeutic agents kill tumor cells by damaging DNA. Evidence shows that cancer cells increase their capacity to repair DNA by overexpressing DNA repair...

Diversifying Network Services under Cost Constraints for Better Resilience against Unknown Attacks

July 20, 2016

Author(s)

Daniel Borbor, Lingyu Wang, Sushil Jajodia, Anoop Singhal

Diversity as a security mechanism has received revived interest recently due to its potential for improving the resilience of software and networks against...

A STATISTICAL APPROACH TO ESTIMATING A 95 % CONFIDENCE LOWER LIMIT FOR THE DESIGN CREEP RUPTURE TIME VS. STRESS CURVE WHEN THE STRESS ESTIMATE HAS AN ERROR UP TO 2 % (*)

July 17, 2016

Author(s)

Jeffrey T. Fong, James J. Filliben, Nathanael A. Heckert, Pedro V. Marcal, Marvin J. Cohn

Recent experimental results on creep-fracture damage with minimum time to failure (minTTF) varying as the 9th power of stress, and a theoretical consequence...

Semantification of Identifiers in Mathematics for Better Math Information Retrieval

July 17, 2016

Author(s)

Moritz Schubotz, Alexey Grigoriev, Howard Cohl, Norman Meushke, Bela Gipp, Volker Markl

Mathematical formulae are essential in science, but face challenges of ambiguity, due to the use of a small number of identifiers to represent an immense number...

Viscosity of refrigerants and other working fluids from residual entropy scaling

July 15, 2016

Author(s)

Ian H. Bell, Arno R. Laesecke

The dynamic modeling of thermal systems and their components has gained an increased importance in recent years. Viscosity is one of the transport properties of...

Time Propagation of Partial Differential Equations Using the Short Iterative Lanczos Method and Finite-Element Discrete Variable Representation: An Experiment Using the Intel Phi Coprocessors

July 15, 2016

Author(s)

Barry I. Schneider, klaus Bartschat, Xiaoxu Guan

The Short Iterative Lanczos (SIL) method has been combined with the Finite-Element Discrete Variable Representation (SIL-FEDVR) to yield a powerful approach to...

Mobile Manipulator Performance Measurement Towards Manufacturing Assembly Tasks

July 12, 2016

Author(s)

Roger V. Bostelman, Sebti Foufou, Steven A. Legowik, Tsai H. Hong

Mobile manipulator performance measurement research is relatively minimal as compared to that of robot arms. Measurement methods, such as optical tracking...

Psychrometric Properties of Humid Air from Multi-Fluid Helmholtz-Free-Energy-Explicit Models

July 11, 2016

Author(s)

Ian H. Bell, Eric W. Lemmon, Allan H. Harvey

Psychrometric properties of humid air are widely used in the analysis and modeling of thermal systems. In this work we present a method for obtaining these...

Quantum Hall Resistance Traceability for the NIST-4 Watt Balance

July 10, 2016

Author(s)

Dean G. Jarrett, Randolph Elmquist, Marlin E. Kraft, George R. Jones Jr., Shamith Payagala, Frank Seifert, Stephan Schlamminger, Darine El Haddad

Scaling from the quantum Hall resistance to 100 Ω standard resistors used by the NIST-4 Watt Balance involves multiple resistance standards and bridges to...

2 V Pulse-Driven Josephson Arbitrary Waveform Synthesizer

July 10, 2016

Author(s)

Nathan E. Flowers-Jacobs, Alain Rufenacht, Anna E. Fox, Paul D. Dresselhaus, Samuel P. Benz

We created a Josephson Arbitrary Waveform Synthesizer (JAWS) with a root-mean-square (rms) output magnitude of 2 V. This system is composed of two 1 V chips...

Fabrication of High Value Standard Resistors for ICE-LMVE

July 10, 2016

Author(s)

Dean G. Jarrett, Isabel Castro, Marlin E. Kraft

In Costa Rica, the Laboratorio Metrológico de Variables Eléctricas (LMVE) at the Instituto Costarricense de Electricidad (ICE) develops and improves measurement...

Model-based engineering for the integration of manufacturing systems with advanced analytics

July 10, 2016

Author(s)

David Lechevalier, Anantha Narayanan Narayanan, Sudarsan Rachuri, Sebti Foufou, Yung-Tsun Lee

To employ data analytics effectively and efficiently on manufacturing systems, engineers and data scientists need to collaborate closely to bring their domain...

Third Generation of Adapted Wheatstone Bridge for High Resistance Measurements at NIST

July 10, 2016

Author(s)

Dean G. Jarrett, Shamith Payagala, Marlin E. Kraft, Kwang Min Yu

A third generation of adapted Wheatstone bridge is being developed at NIST to improve high resistance measurements and scaling from 1 TΩ to 10 PΩ. Improvements...

Improvement of Leakage Resistance of PJVS for NIST-4 Watt Balance Experiment

July 10, 2016

Author(s)

Yi-hua D. Tang, Frank C. Seifert, Stephan Schlamminger

A Programmable Josephson Voltage Standard (PJVS) system is used for the voltage measurements in NIST-4 Watt balance experiment. It is critical to enhance the...

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