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.

Conferences

Advances in Materials Science for Environmental and Energy Technologies IV (Preface)

September 4, 2015

Author(s)

Winnie K. Wong-Ng, Josef Matyas, Tatsuki Ohji, Kanakala Raghunath, Gary Pickrell

The Materials Science and Technology 2014 Conference and Exhibition (MS&T14) was held October 12-16, 2014 at the David L. Lawrence Convention Center...

Primary Sinusoidal Calibration of Force Transducers up to 2 Kilohertz

September 4, 2015

Author(s)

Akobuije D. Chijioke, Nicholas A. Vlajic

We report the implementation of a swept-sine dynamic force calibration system at NIST. This system is designed to perform primary calibration of force...

MEASURING PRESSURE AND VACUUM WITH LIGHT: A NEW PHOTONIC, QUANTUM-BASED, PRESSURE STANDARD

September 3, 2015

Author(s)

Jay H. Hendricks, Jacob E. Ricker, Jack A. Stone Jr., Patrick F. Egan, Gregory E. Scace, Gregory F. Strouse, Douglas A. Olson, Donavon Gerty

The future of pressure and vacuum measurement will rely on lasers and Fabry-Perot optical cavities, and will be based on fundamental physics of light...

Comparing the Linewidths from Single-Pass SPDC and Singly-Resonant Cavity SPDC

September 3, 2015

Author(s)

Oliver T. Slattery, Lijun Ma, Paulina S. Kuo, Xiao Tang

Spontaneous parametric down-conversion (SPDC) is a common method to generate entangled photon pairs for use in quantum communications. The generated single...

iNEMI Project on Automotive Electronic Material Challenges

September 3, 2015

Author(s)

Yaw S. Obeng

Automobiles are incorporating more and more electronics from various industry sectors that have not been optimally designed for use inside the vehicle passenger...

PROGRESS ON MAGNETIC SUSPENSION FOR THE NIST VACUUM-TO-AIR MASS DISSEMINATION SYSTEM

September 3, 2015

Author(s)

Corey A. Stambaugh, Edward C. Mulhern, Eric C. Benck, Zeina J. Kubarych, Patrick J. Abbott

The redefined kilogram will be realized in vacuum and a method will be required to disseminate the standard to air. NIST has been developing a magnetic...

Towards Unified Perron-Frobenius Framework for Managing Systemic Risk in Networked Systems

September 3, 2015

Author(s)

Vladimir V. Marbukh

Along with economic and convenience benefits, interconnectivity also brings potential risks and drawbacks. System designers and operators are faced with problem...

Measurement of oxidatively modified DNA bases and nucleosides by isotope-dilution mass spectrometry

September 1, 2015

Author(s)

Pawel Jaruga

Among cellular structures, the genome is particularly prone to damage, which can result from spontaneous reactions, replication linked failures, or oxidative...

Preparedness for Nuclear and Radiological Threats The Value of Standards for Detection of Radioactive Materials

September 1, 2015

Author(s)

Leticia S. Pibida, Anne L. Sallaska

Document and physical standards play a vital role in security applications. Standards allow setting common measurement units, physical quantities and...

Characterizing intimate mixtures of materials in hyperspectral imagery with albedo-based and kernel-based approaches

September 1, 2015

Author(s)

Robert S. Rand, David Allen, Ronald G. Resmini

Linear mixtures of materials in a scene often occur because the pixel size of a sensor is relatively large and consequently they contain patches of different...

EIT Quantum Memory with Cs Atomic Vapor for Quantum Communication

September 1, 2015

Author(s)

Lijun Ma, Oliver T. Slattery, Paulina S. Kuo, Xiao Tang

Quantum memory is a key device in the implementation of quantum repeaters for quantum communications and quantum networks. We demonstrated a quantum memory...

Voltage Metrology Using a Quantum AC Standard

September 1, 2015

Author(s)

Thomas E. Lipe, Joseph R. Kinard Jr., Yi-hua Tang, Samuel P. Benz, Charles J. Burroughs, Paul D. Dresselhaus

We report on the use of a quantum-based AC voltage standard for ac-dc difference metrology at the National Institute of Standards and Technology (NIST). The...

Modest proposals for improving biometric recognition papers

August 31, 2015

Author(s)

James R. Matey, George W. Quinn, Patrick J. Grother, Elham Tabassi, Craig I. Watson, James L. Wayman

We present practical recommendations for improving the clarity, transparency, and usefulness of many biometric papers. Several of the recommendations can be...

DEVELOPING NIST ROCKWELL HARDNESS DIAMOND INDENTER SRMS BASED ON ISO 6508-3:2015 STANDARD

August 30, 2015

Author(s)

Jun-Feng Song, Samuel R. Low III, Thomas B. Renegar, Li Ma

The ISO 6508-3-2005 standard specified a tight tolerance for the cone flank straightness of Rockwell diamond indenters (0.5 μm for maximum). In the recent...

Development of powder bed fusion additive manufacturing test bed for enhanced real time process control

August 27, 2015

Author(s)

Mihaela L. Vlasea, Brandon M. Lane, Felipe F. Lopez, Sergey Mekhontsev, M A. Donmez

Laser powder bed fusion (PBF) is emerging as the most popular additive manufacturing (AM) method for producing metallic components based on the flexibility in...

Thermographic Measurements of the Commercial Laser Powder Bed Fusion Process at NIST

August 27, 2015

Author(s)

Brandon M. Lane, Shawn P. Moylan, Eric P. Whitenton, Li Ma

Measurement of the high-temperature melt pool region in the laser powder bed fusion (L-PBF) process is a primary focus of researchers to further understand the...

High Throughput Screening of Substrates for Synthesis and Functionalization of 2D Materials

August 26, 2015

Author(s)

Arunima Singh, Albert Davydov, Kiran Mathew, Richard G. Hennig, Francesca M. Tavazza

Several 2D materials have been synthesized experimentally, but many theoretically predicted 2D materials are yet to be synthesized. Here, we will review a...

Forces and dynamics of optically levitated polystyrene particles in air using electrostatic modulation

August 25, 2015

Author(s)

Haesung Park, Thomas W. LeBrun

We demonstrate the simultaneous measurement of optical trap stiffness and quadrant-cell photodetector (QPD) calibration of optically trapped polystyrene...

Standards Landscape and Directions for Smart Manufacturing Systems

August 24, 2015

Author(s)

Yan Lu, Katherine C. Morris, Simon P. Frechette

The future of manufacturing lies in being able to adapt quickly to changing conditions. From smaller lot sizes, to more customization, to sudden changes in...

Hitting the bounds of chemistry: Limits and tradeoffs for low-GWP refrigerants.

August 19, 2015

Author(s)

Mark McLinden, J. Steven Brown, Andrei Kazakov, Piotr Domanski

We explore the possibilities for low-GWP refrigerants through two approaches. First, we explore the performance of hypothetical refrigerants to define the...

Towards Repeatable, Reproducible, and Efficient Biometric Technology Evaluations

August 18, 2015

Author(s)

Gregory P. Fiumara, Wayne J. Salamon, Craig I. Watson

With the proliferation of biometric-based identity management solutions, biometric algorithms need to be tested now more than ever. Independent biometric...

EFFECT OF INSTALLATION FAULTS ON THE PERFORMANCE OF A SPLIT AIR CONDITIONER

August 18, 2015

Author(s)

Piotr A. Domanski, Hugh Henderson, William V. Payne

The study analyzed the effect of common installation faults on the cooling performance of a residential, split air conditioner installed in a single-family...

Atom-based RF electric field measurements: An initial investigation of the measurement uncertainties

August 16, 2015

Author(s)

Christopher L. Holloway

We discuss a new method for the measurement of electric (E) fields that will lead to a self-calibrating, direct SI-traceable E-field probe. The technique is...

Using the Amplitude Variation of a Reverberation Chamber Channel to Predict the Synchronization of a Wireless Digital Communication Test System

August 16, 2015

Author(s)

Ray R. Tanuhardja, Luis A. Gonzalez, Chih-Ming Wang, William F. Young, Kate Remley

This contribution discusses the use of a metric based on the amplitude variation of a channel in the signal bandwidth to predict whether or not a digital...

Uncoordinated Scheduling Strategies for BAN-to-BAN Interference Mitigation

August 13, 2015

Author(s)

Kamran Sayrafian, Martina Barbi, Mehdi Alasti

A Body Area Network (BAN) is a radio standard for wireless connectivity of wearable and implantable sensors located inside or in close proximity to the human...

Implementing and Managing Policy Rules in Attribute Based Access Control

August 13, 2015

Author(s)

Chung Tong Hu, David F. Ferraiolo, David R. Kuhn, Raghu N. Kacker, Yu Lei

Attribute Based Access Control (ABAC) is a popular approach to enterprise-wide access control that provides flexibility suitable for today's dynamic distributed...

Tolerance Specification and Related Issues for Additively Manufactured Products

August 12, 2015

Author(s)

Gaurav Ameta, Robert R. Lipman, Paul W. Witherell, Shawn P. Moylan

Additive manufacturing (AM) has gained increased attention in the last decade as a versatile manufacturing process for customized products. AM process can...

TOWARDS AN INTEGRATED DATA SCHEMA DESIGN FOR ADDITIVE MANUFACTURING: CONCEPTUAL MODELING

August 12, 2015

Author(s)

Yan Lu, Sangsu Choi, Paul W. Witherell

Large amounts of data are generated, exchanged, and used during an additive manufacturing (AM) build. While the AM data from a single build is essential for...

Additive Manufacturing Round Robin Protocols: A Pilot Study

August 12, 2015

Author(s)

Shawn P. Moylan, Joshua Land, Antonio M. Possolo

As the number of users of additive manufacturing (AM) steadily increases, and considering their demand for material and process specifications, the need for...

Field-based simulations of nanostructured polyelectrolyte gels

August 11, 2015

Author(s)

Debra J. Audus, Glenn Fredrickson

Nanostructured, responsive hydrogels composed of oppositely charged triblock copolymers with charged end-blocks and neutral, hydrophilic mid-blocks in aqueous...

Was this page helpful?