Search Publications

NIST Authors in Bold

Displaying 2551 - 2575 of 2770

The Influence of Laser Energy of MALDI on the Molecular Mass Distribution of Synthetic Polymers

May 1, 2001

Author(s)

S Wetzel, Charles M. Guttman, Kathleen M. Flynn

… of low mass polymer molecules, preferential ion attachment to larger polymers, or degradation and …

Thickness measurement of nm HfO2 films

January 1, 2001

Author(s)

Kyung Joong KIM, A Kim, S.C. Kim, S.W. Song, H. Ruh, W.E.S. Unger, J. Radnik, J. Mata-Salazar, J.M. Juarez-Garcia, O. Cortazar-Martinez, A. Herrera-Gomez, P.E. Hansen, J.S. Madsen, C.A. Senna, B.S. Archanjo, J.C. Damasceno, C.A. Achete, H. Wang, M. Wang, Donald Windover, Eric B. Steel, A. Kurokawa, T. Fujimoto, Y. Azuma, S. Terauchi, L. Zhang, W.A. Jordaan, S.J. Spencer, A.G. Shard, L. Koenders, M. Krumrey, I. Busch, C. Jeynes

… mutual calibration of a zero-offset method (Medium Energy Ion Scattering Spectroscopy (MEIS) of KRISS) and a method …

Process Diagnostics and Thickness Metrology Using in Situ Mass Spectrometry for the Chemical Vapor Deposition of W from H 2 /WF 6

May 1, 2000

Author(s)

T Gougousi, Y Xu, J N. Kidder, G W. Rubloff, Charles R. Tilford

… and corrected for contributions from reactions in the ion-source region of the quadrupole and for sensor drifts, …

Synthesis, Characterization, and Crystal Structure of Dicalcium Glutarylbisphosphonate Dihydrate - Covalently Pillared Layer Structure with the Potential for Epitaxial Growth on Hydroxyapatite.

November 1, 1998

Author(s)

M Mathew, Bruce O. Fowler, E Breuer, G Golomb, I S. Alferiev, Naomi Eidelman

… atom of the phosphonate group is bonded to a different Ca ion and each Ca in turn is linked to three phosphonate …

Developing a Method to Determine Linewidth Based on Counting the Atom-Spacings Across a Line

June 1, 1998

Author(s)

Richard M. Silver, Carsten P. Jensen, V W. Tsai, Joseph Fu, John S. Villarrubia, E C. Teague

… The facility is additionally equipped with a field-ion / field-electron microscope (FIFEM) which can atomically …

Impact of Side Chain Polarity and Symmetry on the Structure and Properties of Acyclic Dioxythiophene Polymers

June 20, 2025

Author(s)

Rinehart Joshua, Zhuang Xu, Anna Osterholm, Lucas Flagg, Lee Richter, Shannon Yee, Ying Diao, John Reynolds

… A useful structure for redox-active organic mixed ion-electron conductors are acyclic dioxythiophene polymers …

Uranium Particle Age Dating, Aggregation, and Model Age Best Estimators

June 9, 2025

Author(s)

Evan Groopman, Todd Williamson, Timothy Pope, Michael Bronikowski, Spencer M. Scott, Matthew Wellons

… of uranium particle age dating by Large-Geometry Secondary Ion Mass Spectrometry (LG-SIMS) that can introduce bias and …

Fabrication of Ultra-Thick Masks for X-ray Phase Contrast Imaging at Higher Energy

February 16, 2025

Author(s)

Daniel Josell, Alessandro Rossi, Sandro Olivo, ioannis Papakonstantinou, Ian Buchanon, Alberto Astolfo, Anton Charman, Daniel Briglin

X-ray phase contrast imaging (XPCI) provides higher sensitivity to low absorbing objects that can be invisible to conventional attenuation-based X-ray imaging. This technique's main application has been so far mostly focused on medical areas at relatively

The Influence of Reorientational and Vibrational Dynamics on the Mg2+ Conductivity in Mg(BH4)2:CH3NH2

October 8, 2024

Author(s)

Mads Amdisen, Yongqiang Cheng, Niina Jalarvo, Daniel Pajerowski, Craig Brown, Torben R. Jensen, Mikael S. Andersson

… This is likely part of the explanation for the high Mg-ion transport observed for Mg(BH4)2·CH3NH2. Furthermore, …

Can Wormlike Micelle Stiffness by Estimated from Zero-Shear Viscosity? Experimental Investigation with a Model System and Specific Salt Interactions

March 1, 2024

Author(s)

Nour S. Alawami, Kathleen Weigandt, Javen Weston

… solution of the surfactant sodium lauryl ether sulfate. Ion dissociation/association with the surfactant head groups …

Monitoring Protein Complexation with Polyphosphazene Polyelectrolyte Using Automated Dynamic Light Scattering Titration and Asymmetric Flow Field Flow Fractionation and Protein Recognition Immunoassay

April 21, 2023

Author(s)

Michael Lueckheide, Alexander Marin, Harichandra Tagad, Nicholas Posey, Vivek Prabhu, Alexander Andrianov

… with elevated NaCl or KCl salt concentrations indicate ion-specific effects, such that more smaller-size complexes …

Tightly Confined Surface Acoustic Waves as Microwave-to-Optical Transduction Platforms in the Quantum Regime

September 26, 2022

Author(s)

Ryan DeCrescent, Zixuan Wang, Poolad Imany, Robert Boutelle, Corey McDonald, Travis Autry, John Teufel, Sae Woo Nam, Richard Mirin

Surface acoustic waves (SAWs) coupled to quantum dots (QDs), trapped atoms and ions, and point defects have been proposed as quantum transduction platforms, yet the requisite coupling rates and cavity lifetimes have not been experimentally established

The Influence of Matrix and LaserEnergy on the Molecular MassDistribution of Synthetic Polymers Obtained by MALDI-TOF-MS

October 12, 2021

Author(s)

S Wetzel, Charles M. Guttman, J. Girard

… of low mass polymer molecules,preferential ion attachment to larger polymers, or degradation and …

High-Precision Hy-CI and E-Hy-CI studies of Atomic and Molecular Properties

September 29, 2021

Author(s)

James S. Sims, Maria Ruiz, Bholanath Padhy

This review presents a survey of the most important achievements in atomic and molecular calculations obtained with the Hylleraas-configuration interaction method (Hy-CI) and its extension the exponentially correlated Hylleraas-configuration interaction

Tantala Kerr nonlinear integrated photonics

May 26, 2021

Author(s)

Hojoong Jung, Su P. Yu, David Carlson, Tara E. Drake, Travis Briles, Scott Papp

… We utilize > 800-nm thick tantala films deposited via ion-beam sputtering on oxidized silicon wafers. The tantala …

Experimental and Theoretical Evidence of Hydrogen Doping in Solution Processed Indium Gallium Oxide via Polymer Incorporation

July 23, 2020

Author(s)

Wei Huang, Joshua Tedesco, Po-Hsiu Chien, Kyle McMillen, Li Zeng, Subhrangsu Mukherjee, Binghao Wang, Yao Chen, Gang Wang, Yang Wang, Yanshan Gao, Michael Bedzyk, Dean DeLongchamp, Julia E. Medvedeva, Yan-Yan Hu, Tobin Marks, Antonio Facchetti

… photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry, and Fourier- transform infrared …

Nanoscale mapping of the double layer potential at the graphene-electrolyte interface

January 28, 2020

Author(s)

Evgheni Strelcov, Christopher M. Arble, Hongxuan Guo, Brian D. Hoskins, Alexander Yulaev, Ivan Vlassiouk, Nikolai B. Zhitenev, Alexander Tselev, Andrei A. Kolmakov

… devices, determine reaction potentials and condition ion transport through the cellular membranes in living …

X-Ray Nanodiffraction Studies of Ionically Controlled Nanoscale Phase Separation in Cobaltites

August 5, 2019

Author(s)

Geoffery Rippy, Lacey Trinh, Alexander M. Kane, Aleksey L. Ionin, Michael S. Lee, Rajesh V. Chopdekar, Joyce M. Christiansen-Salameh, Dustin A. Gilbert, Alexander Grutter, Peyton D. Murray, Martin V. Holt, Zhonghou Cai, Kai Liu, Yayoi Takamura, Roopali Kukreja

… 0.33 CoO 3 (LSCO) heterostructures due to the high oxygen ion conductivity, as well as the coupled magnetic and …

ToF-SIMS Depth Profiling of Oral Drug Delivery Films for 3D Visualization and Potential Quantification of Active Pharmaceutical Particles

July 30, 2019

Author(s)

Shinichiro N. Muramoto, J Greg Gillen, Cynthia J. Zeissler, Edward Garboczi

… explores the feasibility of using Time-of-Fight Secondary Ion Mass Spectrometry (ToF-SIMS) for the 3D characterization …

Chip-integrated visible-telecom entangled photon pair source for quantum communication

January 21, 2019

Author(s)

Xiyuan Lu, Qing Li, Daron Westly, Gregory Moille, Anshuman Singh, Vikas Anant, Kartik Srinivasan

Photon pair sources are fundamental blocks for quantum entanglement and quantum communication. Recent studies in silicon photonics have documented promising characteristics for photon pair sources within the telecommunications band, including sub-milliwatt

Numerical study of the initial particle parking structure of cement/geopolymer paste and dissolution of amorphous silica using real-shape particles

July 18, 2018

Author(s)

Edward Garboczi, Guang Ye, Zhiwei Qian, Yibing Zuo

Many particle-based numerical models have been used to simulate the hydration process of cementitious materials. But most of these models employ regular shape particles, like the commonly used spheres, to represent cement, slag or fly ash, which neglects

Qualitative characterization of three combustion-related standard reference materials for polycyclic aromatic sulfur heterocycles and their alkyl-substituted derivatives via gas chromatography/mass spectrometry

May 7, 2018

Author(s)

Walter Wilson, Hugh Hayes, Andres Campiglia, Stephen Wise

… of reference standards, and the predominant molecular ion peak in the mass spectrum. Prior to this study, only 11, …

Relating the Electrical Resistance of Fresh Concrete to Mixture Proportions

March 5, 2018

Author(s)

K H. Obla, Rongjin Hong, Stuart Sherman, Dale P. Bentz, Scott Jones

Characterization of fresh concrete is critical for assuring the quality of our nation's constructed infrastructure. While fresh concrete arriving at a job site in a ready-mixed concrete truck is typically characterized by measuring temperature, slump, unit

Properties of Laser-Produced GaAs Plasmas Measured from Highly Resolved X-Ray Line Shapes and Ratios

February 17, 2018

Author(s)

Lawrence T. Hudson, John F. Seely, J. Fein, P Keiffer, R.P. Drake, C.C. Kuranz, P Belancourt, Uri Feldman

The properties of hot, dense plasmas generated by the irradiation of GaAs targets by the Titan laser at Lawrence Livermore National Laboratory were determined by the analysis of high resolution K shell spectra in the 9 keV to 11 keV range. The laser

Numerical study of the initial particle parking structure of cement/geopolymer pastes and dissolution of amorphous silica using real-shape particles

December 12, 2017

Author(s)

Edward Garboczi, Yibing Zuo, Zhiwei Qian, Guang Ye

Many particle-based numerical models have been used to simulate the hydration process of cementitious materials. But most of these models employ regular shape particles, such as spheres, to represent cement, slag or fly ash, which neglect the influence of

Advanced communications
-Open Radio Access Network (Open-RAN)
-Quantum communications
-Spectrum sharing
-Wireless (RF)
Artificial intelligence
-AI measurement and evaluation
-Autonomous systems
--Automated vehicles
--Autonomous laboratories
-Applied AI
-Fundamental AI
-Hardware for AI
-Machine learning
-Trustworthy and responsible AI
Bioscience
-Bioeconomy
--Biological data
-Bioimaging
-Bioinformatics
-Biomanufacturing
-Biomaterials
-Biometrology
-Biosecurity
--Biosurveillance
--Genomic cybersecurity
--Nucleic acid sequence screening
-Cell measurements
-Engineering / synthetic biology
--Biofabrication
--Cell-free systems
--Genome engineering
--Protein engineering
-Gene delivery systems
-Genome editing
-Genomics
-Glycomics
-Metabolomics
-Microbial measurements
-Proteomics
Buildings and Construction
-Building codes and standards
-Building control systems
-Building damage and repair
-Building economics
-Building materials
-Energy efficiency
-Heating, ventilation and air conditioning equipment
-Indoor air quality
-Structural engineering
-Thermal comfort
Chemistry
-Analytical chemistry
-Chemical engineering and processing
-Chemical thermodynamics and chemical properties
-Molecular characterization
-Theoretical chemistry and modeling
-Thermochemical properties
Electronics
-Electromagnetics
-Flexible electronics
-Magnetoelectronics
-Optoelectronics
-Organic electronics
-Semiconductors
-Sensors
-Superconducting electronics
Energy
-Alternative energy
-Conventional energy
-Electric power / smart grid
-Fuels
Environment
-Air / water / soil quality
-Climate Measurements
-Environmental health
-Greenhouse gas measurements
-Marine science
-Sustainability
Fire
-Fire detection
-Fire dynamics and science
-Fire fighting
-Fire modeling
-Fire risk reduction
-Materials flammability
-Structural fire resistance
-Wildland urban interface fire
Forensic Science
-Digital evidence
-Drugs and toxicology
-Firearms and toolmarks
-Forensic biometrics
-Forensic genetics
-Trace evidence
Health
-Biopharmaceuticals
-Cell and gene therapy
-Clinical diagnostics
--Cancer
--Medical imaging
-Food and nutrition
-Human microbiome
-Precision medicine
-Regenerative medicine and advanced therapy
--Flow cytometry
Information technology
-Biometrics
-Cloud computing and virtualization
-Complex systems
-Computational science
-Conformance testing
-Cyber-physical systems
--Smart cities
-Cybersecurity and privacy
--Cryptography
--Cybersecurity education and workforce development
--Cybersecurity measurement
--Identity and access management
--Privacy engineering
--Risk management
--Securing emerging technologies
--Trustworthy networks
--Trustworthy platforms
-Data and informatics
--Human language technology
--Information retrieval
--Natural language processing
-Digital twins
-Federal information processing standards (FIPS)
-Health IT
-Internet of Things (IoT)
-Interoperability testing
-Location based services
-Mobile
-Networking
--Mobile and wireless networking
--Network management and monitoring
--Network modeling and analysis
--Network security and robustness
--Network test and measurement
--Next generation networks
--Protocol design and standardization
--Software defined and virtual networks
-Software research
--Software testing
-Usability and human factors
--Accessibility
-Video analytics
-Virtual / augmented reality
-Visualization research
-Voting systems
Infrastructure
Manufacturing
-Additive manufacturing
-Factory communications
-Factory operations planning and control
-Interoperability in manufacturing
-Machining
-Manufacturing economics
-Manufacturing quality assurance
-Manufacturing systems design and analysis
-Monitoring, diagnostics and prognostics
-Process improvement
-Process measurement and control
-Product data
-Robotics
--Agility and adaptability
--Collaborative robots
--Dexterous grasping
--Manipulation
--Mobility and industrial autonomous vehicles
--Navigation / actuation / control
--Sensing and perception
-Supply chain
-Sustainable manufacturing
-Systems engineering
-Systems integration
-Technology commercialization
Materials
-Ceramics
-Composites
-Concrete / cement
-Materials characterization
--Composition and structure
--Mechanical properties
--Thermal properties
-Metals
-Modeling and computational material science
-Polymers
-Superconductors
Mathematics and statistics
-Experiment design
-Image and signal processing
-Modeling and simulation research
-Numerical methods and software
-Statistical analysis
-Uncertainty quantification
Metrology
-Amount of substance
-Dimensional metrology
-Electrical / electromagnetic metrology
-Flow metrology and rheology
-Force metrology
-Humidity metrology
-Ionizing radiation metrology
-Mass metrology
-Metric
-Optical / photometry / laser metrology
-Pressure and vacuum metrology
-Thermometry metrology
-Time and frequency metrology
-Weights and measures
Nanotechnology
-Nanobiotechnology
-Nanochemistry
-Nanoelectronics
-Nanofabrication / manufacturing
--Lithography
--Self-assembly
-Nanofluidics
-Nanomagnetics
-Nanomaterials
-Nanomechanics
-Nanometrology
-Nanophotonics
-Nanophysics
-Nanoplasmonics
Neutron research
Performance excellence
-Assessment tools and services
-Baldrige award
-Baldrige examiners
-Baldrige Framework and Criteria
-Best practices
-Leadership development
Physics
-Atomic / molecular / quantum
-Biological physics
-Condensed matter
-Electron physics
-Magnetics
-Nuclear physics
-Optical physics and communications
-Quantum information science
-Radiation
-Spectroscopy
-Thermodynamics
-Time and frequency
Public safety
-Chemical / Biological / Radiological / Nuclear / Explosives (CBRNE)
-First responder preparedness
-Law enforcement
-Public safety communications research
-Response robots
Resilience
-Community resilience
--Recovery
--Resilience metrics
-Disaster and failure studies
-Earthquake risk reduction
-Resilience economics
-Resilient materials
-Windstorm impact reduction
Standards
-Accreditation
-Calibration services
-Conformity assessment
-Documentary standards
-Frameworks
-Quality assurance
-Reference data
-Reference instruments
-Reference materials
-Standards education
Technology transfer
Transportation
-Aerospace
-Automotive