Search Publications

NIST Authors in Bold

Displaying 4376 - 4400 of 4637

From Stable Lasers to Optical-Frequency Clocks

October 16, 2008

Author(s)

John L. Hall, Jun Ye, L -. Ma, J L. Peng, M Notcutt, J D. Jost, A Marian

… the Hydrogen Maser. We note the bifurcation between single-ion-based clocks - likely to be the stability/reproducibility …

Measuring the Extent of Exfoliation in Polymer/Clay Nanocompsites Using Real-Time Process Monitoring Methods

October 16, 2008

Author(s)

Anthony J. Bur, T Y. Lee, S C. Roth, P R. Start

Polymer/Clay nanocomposites were compounded using a twin screw extruder that was instrumented with multiple sensors. The sensors were situated in a slit die chamber that was attached to the exit of the extruder and yielded data about dielectric, optical

Relative Volatilities of Ionic Liquids by Vacuum Distillation of Ionic Liquid Mixtures

June 7, 2007

Author(s)

Jason A. Widegren, Yi-ming Wang, Wesley A. Henderson, Joe W. Magee

The relative volatilities of a variety of common, aprotic ionic liquids have been determined for the first time. Equimolar mixtures of ionic liquids were vacuum distilled in a glass sublimation apparatus at approximately 473 K. The composition of the

Formation and Reaction of Br 2 - Radicals in the Ionic Liquid Methyltributylammonium Gis(trifluoromethylsufonyl)imide and in Other Solvents

November 1, 2002

Author(s)

J Grodkowski, Pedatsur Neta

Reaction of solvated electrons with BrCh 2Ch 2Br produces Br - and CH 2CH 2Br, which decomposes rapidly into CH 2=CH 2 and Br with Br 2 -. The stability of Br 2 - is much greater in the ionic liquid and in acetonitrile than in water or alcohols. The rate

Superconformal Electrodeposition of Copper in 500-90 nm Features

December 1, 2000

Author(s)

Thomas P. Moffat, Daniel Wheeler, W H. Huber, Daniel Josell

… counterbalance the influence of the differential cupric ion concentration that develops within the tranches. …

Correlation of End-of-Range Damage Evolution and Transient Enhanced Diffusion of Boron in Regrown Silicon

December 1, 1999

Author(s)

L S. Robertson, M E. Law, K. S. Jones, L M. Rubin, J Jackson, P Chi, David S. Simons

… at 750 C, for times ranging from 15 min to 6 h. Secondary ion mass spectrometry was used to monitor the dopant …

Reinterpretation of the Spectra of Hydrated Co++: An ab initio Study

July 1, 1998

Author(s)

H S. Gilson, Morris Krauss

… for these complexes with one water replaced by a hydroxide ion. The results of the calculations are compared with …

Photothermal Radiometry Applied to Angstrom's Method for Measuring the Thermal Diffusivity of CVD Diamond

April 1, 1998

Author(s)

A Feldman, N M. Balzaretti

… same specimens. The heat source was the beam of an argon-ion laser focused onto the specimen surface either with a …

Acid Gas Production in Inhibited Propane-Air Diffusion Flames

August 21, 1994

Author(s)

Gregory T. Linteris

… analysis of the final products of the flames using ion-selective electrodes for F anc Cl provides an …

Acid Gas Production in Inhibited Diffusion Flames

May 3, 1994

Author(s)

Gregory T. Linteris, M D. King, A Liu, C A. Womeldorf, Y. E. Hsin

… analysis of the final products of the flames using ion-selective electrodes for F and Cl provided an …

Comparison of Direct and Indirect Measures of Transport Efficiency in Single Particle ICP-MS

December 16, 2023

Author(s)

Karen Murphy, Antonio Montoro Bustos, Lee L. Yu, Monique Johnson, Michael R. Winchester

… were not consistent. Results for spICP-MS measurement of gold nanoparticle (AuNP) PNC computed using either the TEF or …

SSCP Analysis of Point Mutations by Multi-Color Capillary Electrophoresis

November 1, 1999

Author(s)

K Hayashi, H M. Wenz, M Inazuka, T Tahira, Donald H. Atha

… Direct sequence determination of a PCR product is the gold standard for identifying mutaions. However, the vast …

Exploring Nonlinear Flame Speed Inhibition Effects in Mixtures of R1234yf and R32

June 6, 2024

Author(s)

Raik Hesse, Roman Glaznev, Raymond Langer, Christian Felix Schwenzer, Valeri Babushok, Gregory Linteris, Heinz Pitsch, Joachim Beeckmann

This study investigates the flame speed inhibition effects in R1234yf and R32 mixtures, two hydrofluorocarbon (HFC) refrigerants with low global warming potential but mild flammability. The laminar flame speed (S0L,u) is a crucial parameter for assessing

Surface-Normal Free-Space Beam Projection via Slow-Light Standing Wave Resonance Photonic Gratings

July 13, 2022

Author(s)

Alexander Yulaev, Daron Westly, Vladimir Aksyuk

On-chip grating couplers directly connect photonic circuits to free-space light. The commonly used photonic gratings have been specialized for small areas, specific intensity profiles and non-vertical beam projection. This falls short of the precise and

Low-NEP pyroelectric detectors for calibration of UV and IR sources and detectors

September 5, 2017

Author(s)

George P. Eppeldauer, Vyacheslav B. Podobedov, Leonard Hanssen, P. Yvonne Barnes

… responsivities using absolute tie points from a silicon-trap-detector in the VIS range. In addition to the UV …

Improved Methods and Standards for Telomerase Detection: Quantitative Histopathology Using Antibody Staining

October 1, 2009

Author(s)

J P. Jakupciak, Nathan D. Gallant, A H. Smith, Matthew Becker, Alessandro Tona, Donald H. Atha

… of measurements of telomerase by tissue staining, TRAP/PCR activity, mRNA expression, and flow cytometry will …

Dielectric Properties of Nylon 6/Clay Nanocomposites From On-Line Process Monitoring and Off-Line Measurements

July 1, 2005

Author(s)

N Noda, Y E. Lee, Anthony J. Bur, Vivek Prabhu, Chad R. Snyder, S C. Roth, M M. McBrearty

Nylon 6/ clay nanocomposites were studied by dielectric relaxation spectroscopy (DRS) to correlate morphology and microstructure with relaxation behavior of the polymer matrix at the molecular level. Two types of microstructure, agglomerated and exfoliated

Stationary Solutions of the One-Dimensional Nonlinear Schrodinger Equation: I. Case of Repulsive Nonlinearity

December 1, 2000

Author(s)

L D. Carr, Charles W. Clark, W P. Reinhardt

In this first of two papers, we elucidate properties of all stationary solutions of the nonlinear Schr dinger equation with constant external potential on a finite one dimensional interval, with both box and periodic boundary conditions, for the case of

Investigation of the Charge Compensation Mechanism on the Electrochemically Li-ion Deintercalated Li1xCo1/3Mn1/3O2 Electrode System by Combination of Soft and Hard X-ray Absorption Spectroscopy

December 14, 2005

Author(s)

W S. Yoon, Mahalingam Balasubramanian, Kyung Y. Chung, Xiao-Qing Yang, J Bcbreen, C P. Grey, Daniel A. Fischer

… Charge Compensation Mechanism on the Electrochemically Li-ion Deintercalated Li1xCo1/3Mn1/3O2 Electrode System by …

Electron-impact excitation of multiply-charged ions using energy loss in merged beams: e+Si 3+ (3s 2 S 1/2 )- e+Si 3+ (3p 2 P 1/2,3/2 ), in Proceedings, Vth International Conference on the Phys

January 1, 1991

Author(s)

E K. Wahlin, J S. Thompson, G H. Dunn, R A. Phaneuf, D C. Gregory, A C. Smith

… Electron-impact excitation of multiply-charged ions using energy loss in merged beams: e+Si 3+ (3s 2 S 1/2 …

Effects of Silica, Fe(II), and Mn(II) on Electrochemical Lithium Intercalation: Implication for Lithium Extraction from Geothermal Brines

September 11, 2025

Author(s)

Yongchang Yu, Christopher Stafford, Lingchen Kong, Keven Mckenzie Jr, Michael Wagner, Xitong Liu

Electrochemical lithium intercalation is a promising direct lithium extraction technology owing to its high lithium selectivity and elimination of chemical usage, making it an environmentally friendly solution for lithium extraction from geothermal brine

Synthesis and Characterization of the Novel Breathing Pyrochlore Compound Ba3Tm2Zn5O11

December 6, 2024

Author(s)

Lalit Yadav, Rabindranath Bag, Ramesh Dhakal, Stephen Winter, Jeffrey Rau, Alexander Kolesnikov, Andrey Podlesnyak, Craig Brown, Nicholas Butch, David Graf, Michel Gingras, Sara Haravifard

… fitted crystal electric field model predicting a single-ion singlet ground state and an energy gap of ∼9meV …

Itinerant A-Type Antiferromagnet Order in Co1/4TaSe2

October 11, 2024

Author(s)

H. C. Mandujano, Gicela Saucedo Salas, Tianyu Li, Peter Zavalij, Alicia Manjon-Sanz, Nicholas Butch, Efrain Rodriguez

… the results of this work in the context of other magnetic-ion intercalated TMDs, especially those of Ta and Nb. …

Simulating the Influence of Supporting Electrolyte Concentration on Copper Electrodeposition in Microvias

January 18, 2023

Author(s)

Trevor Braun, Jimmy John, Nagarajan Jayaraju, Daniel Josell, Thomas P. Moffat

… features due to the decrease of conductivity as metal ion is depleted locally. This beneficial aspect of low acid …

Towards Understanding the Magnetic Properties of the Breathing Pyrochlore Compound Ba 3 Yb 2 Zn 5 O 11 through Single-Crystal Studies

August 10, 2022

Author(s)

Sachith Dissanayake, Zhenzhong Shi, Jeffrey Rau, Rabindranath Bag, William Steinhardt, Nicholas Butch, Matthias Frontzek, Andrey Podlesnyak, David Graf, Casey Marjerrison, Jue Liu, Michel J. Gingras, Sara Haravifard

Ba 3Yb 2Zn 5O 11 is unique among breathing pyrochlore compounds for being in the nearly-decoupled limit where inter-tetrahedra interactions are weak, hosting isolated clusters or molecular magnet like tetrahedra of magnetic ytterbium (Ybu3+^) ions. In this

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