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NIST Authors in Bold

Displaying 12351 - 12375 of 74337

Richard Niessner and Andreas Schaffer: Organic Trace Analysis

May 16, 2018

Author(s)

Melissa M. Phillips

None

Superconformal Nickel Deposition in Through Silicon Vias: Experiment and Prediction

May 16, 2018

Author(s)

Trevor Braun, Daniel Josell, Thomas P. Moffat, Hyo Jong Lee, SH Kim

This work examines the filling of Through Silicon Vias (TSV) by Ni deposition from a NiSO4 + NiCl2 + H3BO3 electrolyte containing a branched polyethyleneimine suppressor previously. Feature filling occurs through the coupling of transport limited

Anomalous Supercurrent Modulation in Josephson Junctions With Ni-Based Barriers

May 15, 2018

Author(s)

Burm Baek, Michael L. Schneider, Matthew R. Pufall, William H. Rippard

We investigate the supercurrent transport characteristics of Ni-barrier Josephson junctions with various barrier multilayer structures. Our device fabrication and magneto-electrical measurement methods provide high enough statistics and rigor necessary for

Effect of Pipe Flattening in API X65 Linepipe Steels Having Bainite vs. Ferrite/Pearlite Microstructures

May 15, 2018

Author(s)

Timothy Weeks, Singon Kang, John Speer, Chester Van Tyne

Multi-Job Production Systems: Definition, Problems, Analysis, and Product-Mix Performance Portrait of Serial Lines

May 15, 2018

Author(s)

Peter O. Denno, Pooya Alvian

Multi-job production (MJP) is a class of flexible manufacturing systems intended to produce different products (job-types) according to a given product-mix and build-schedule. In MJP systems, all job-types are processed by the same sequence of

Simulating the fire-thermal-structural behavior in a localized fire test on a bare steel beam

May 15, 2018

Author(s)

Chao Zhang, Lisa Y. Choe, John L. Gross

The engineering design practice may include fire protection design of steel structures in large volumes. Prescriptive methods in fire codes are based on the concept of fire compartmentation and might be inapplicable to large volumes. As an alternative

A Data Clustering Technique for Fault Detection and Diagnostics in Field-Assembled Air Conditioners

May 14, 2018

Author(s)

William V. Payne, Piotr A. Domanski, Jaehyeok Heo

Fault Detection and Diagnostics (FDD) can be used to commission and maintain the performance of residential style, split-system, air conditioners and heat pumps. Previous investigations by various researchers have provided techniques for detecting and

Fine Tuning and Specific Binding Sites with a Porous Hydrogen-Bonded Metal-Complex Framework for Gas Selective Separations

May 14, 2018

Author(s)

Zongbi Bao, Danyan Xie, Ganggang Chang, Hui Wu, Liangying Li, Wei Zhou, Hailong Wang, Zhiguo Zhang, Huabin Xing, Qiwei Yang, Michaek J. Zaworotko, Qilong Ren, Banglin Chen

Research on HOFs has been developed for quite a long time; however, those with both established permanent porosities and functional properties are extremely rare due to weak hydrogen-bonding interactions among molecular organic linkers which are much more

Investigations on SI-Traceable Dynamic Calibration of Instrumented Charpy Strikers

May 14, 2018

Author(s)

Akobuije D. Chijioke, Nicholas A. Vlajic, Enrico Lucon, Edward C. Mulhern

In this Technical Note, we report on investigations toward an SI-traceable dynamic calibration of instrumented Charpy strikers, performed at NIST from January to December 2017. Although Charpy tests are few-millisecond-duration events in which dynamic

Physical and Chemical Transformations of Silver Nanomaterials in Textiles After Use and Disposal

May 14, 2018

Author(s)

Danielle E. Gorka, Justin Gorham

Silver nanomaterials (AgNMs) have been increasingly used in consumer products for their antibacterial properties. Textiles, including wound dressings, are just one of the many products which take advantage of AgNM's antimicrobial properties. To better

Polarized single-scattering phase function determined for a common reflectance standard from bidirectional reflectance measurements

May 14, 2018

Author(s)

Thomas A. Germer

We report on Mueller matrix bidirectional reflectance distribution function (BRDF) measurements of a sintered polytetrafluoroethylene (PTFE) sample over the scattering hemisphere for incident angles from 0° to 75° and for four wavelengths from 351 nm to

Testing the image quality of cabinet x-ray systems for security screening: the revised ASTM F792 standard

May 14, 2018

Author(s)

Jack L. Glover, Ronald E. Tosh, Lawrence T. Hudson, Nicholas G. Paulter Jr.

Ultra-high spectral resolution spectrometer for single photon source characterization

May 14, 2018

Author(s)

Lijun Ma, Oliver T. Slattery, Xiao Tang

In future quantum communication systems, single photons will be required to possess very narrow linewidths and accurate wavelengths for efficient interaction with quantum memories. Spectral characterization of such single photon sources is necessary and

Why We Need to Look Beyond the Glass Transition Temperature to Characterize the Dynamics of Thin Supported Polymer Films

May 14, 2018

Author(s)

Jack F. Douglas, Wengang Zhang, Francis W. Starr

There is significant variation in the reported magnitude, and even the sign of Tg shifts in thin polymer films with the same chemistry, film thickness and supporting substrate. The implicit assumption of these studies is that methods used to estimate Tg in

X-Ray Spectrometer Having 12 000 Resolving Power at 8 keV Energy

May 14, 2018

Author(s)

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

An x-ray spectrometer employing a thin (50 μm) silicon transmission crystal was used to record high-resolution Cu Kα spectra from a laboratory x-ray source. The diffraction was from the (331) planes that were at an angle of 13.26° to the crystal surface

Physical and Chemical Transformations of Silver Nanomaterial-containing Textiles After Use

May 13, 2018

Author(s)

Danielle E. Gorka, Justin Gorham

Nanomaterials have been increasingly used in consumer products and silver nanomaterials (AgNMs) especially have been used for their antimicrobial properties. As use of AgNMs in consumer products continues to increase, a corresponding increase in silver's

Problems with Stirred Immunity Measurements in a Reverberation Chamber -- Corrections to DO-160G Section 20.6

May 13, 2018

Author(s)

John M. Ladbury

Abstract—When DO-160G, Environmental Conditions and Test Procedures for Airborne Equipment [1], Section 20.6, was modified in 2010 to simplify electromagnetic susceptibility measurements in a reverberation chamber and switch from a stepped paddle (mode

The Impact of Adsorbates on Metal Deposition Through The Curvature Enhanced Accelerator Coverage Mechanism And Beyond

May 13, 2018

Author(s)

Daniel Josell, Thomas P. Moffat

Superconformal electrodeposition utilizing additives that adsorb on the deposit surface and either enhance or suppress metal deposition enabled the implementation of damascene interconnects in microelectronics using copper superfill in the late 1990s

Towards Light Storage and Retrieval from a Solid-State Atomic Ensemble at the Single-Photon Level

May 13, 2018

Author(s)

Kumel H. Kagalwala, Elizabeth A. Goldschmidt, Sergey V. Polyakov, Alan L. Migdall

We report progress towards the implementation of a quantum memory in a rare-earth ion-doped crystal. Toward that goal, we demonstrate a narrowband spectral filter for our memory, and measure the optical correlations.

Using Temperature to Reduce Noise in Quantum Frequency Conversion

May 12, 2018

Author(s)

Paulina Kuo, Jason S. Pelc, Carsten Langrock, M. M. Fejer

A main source of noise in quantum frequency conversion is spontaneous Raman scattering, which can be reduced by lowering the operating temperature. We show reduction in dark count rates that agrees well with theory.

Vibrational Interferometry Enables Single-Scan Acquisition of all h (3) Multi-Dimensional Coherent Spectral Maps

May 12, 2018

Author(s)

Travis M. Autry, Galan Moody, James M. Fraser, Corey A. McDonald, Richard Mirin, Kevin L. Silverman

We demonstrate a new method for multidimensional coherent spectroscopy of nanostructures. We use a heterodyne technique implemented with a confocal microscope to record the amplitude and phase of all degenerate third-order wave-mixing processes.

Assessment of Carrier Lifetimes and Surface Recombination Velocity through Spectral Measurements

May 11, 2018

Author(s)

John F. Roller, Behrang H. Hamadani

Charge carrier lifetimes and surface recombination velocities were measured on photovoltaic- grade silicon wafers using a spectral-dependent method. Narrow bandwidth light emitting diodes (LEDs) were used to generate excess charge carriers inside the

Opportunities and Challenges in Implementation of Multiparameter Single Cell Analysis Platforms for Clinical Translation

May 11, 2018

Author(s)

susan M. Keating, D. Lansing Taylor, Anne L. Plant, E. David Litwack, Peter Kuhn, Emily J. Greenspan, Christopher M. Hartshorn, Caroline C. Sigman, Gary J. Kelloff, Gregory Friberg, Jerry S. Lee, Keisuke Kuida

The high-content interrogation of single cells with platforms optimized for the multiparameter characterization of cells in liquid and solid biopsy samples can enable characterization of heterogeneous populations of cells ex vivo. Doing so will advance the

pyPRISM Documentation

May 11, 2018

Author(s)

Tyler B. Martin, Thomas E. Gartner, Ronald L. Jones, Chad R. Snyder, Arthi Jayaraman

pyPRISM Tutorial

May 11, 2018

Author(s)

Tyler Martin, Thomas E. Gartner, Ronald Jones, Chad Snyder, Arthi Jayaraman

Advanced communications
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