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Displaying 3876 - 3900 of 4637

Improved hyperfine measurements of the Na 5p excited state through frequency-controlled Dopplerless spectroscopy in a Zeeman magneto-optic laser trap

January 1, 1993

Author(s)

M Zhu, Christopher W. Oates, John L. Hall

… Dopplerless spectroscopy in a Zeeman magneto-optic laser trap …

Large Field of View Quantitative Phase Imaging of Induced Pluripotent Stem Cells and Optical Pathlength Reference Materials

February 23, 2018

Author(s)

Edward J. Kwee, Alexander W. Peterson, Jeffrey R. Stinson, Michael W. Halter, Liya Yu, Michael P. Majurski, Joe Chalfoun, Peter Bajcsy, John T. Elliott

Induced pluripotent stem cells (iPSCs) are reprogrammed cells that can have heterogeneous biological potential. Quality assurance metrics of reprogrammed iPSCs will be critical to ensure reliable use in cell therapies and personalized diagnostic tests. We

Limitations of the Different Methods for the Concentration Measurements of Human Genomic DNA and Oligonucleotide Samples

February 1, 2018

Author(s)

Hua-Jun He, Erica V. Stein, Paul C. DeRose, Kenneth D. Cole

We compared different methods to measure the concentrations of nucleic acids using samples of human genomic DNA (cell line origin), and a synthetic DNA oligonucleotide. NIST Standard Reference Material (SRM) 2082, a pathlength absorbance standard, was used

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 to record single-shot spectra from the LLNL Titan laser and other comparable or more energetic

The Calibration of Laboratory X-Ray Diffraction Equipment Using NIST Standard Reference Materials

January 1, 2013

Author(s)

James Cline, David R. Black, Donald Windover, Albert Henins

The laboratory X-ray powder diffractometer offers several virtues that have rendered it a principal characterization device providing critical data for a range of technical disciplines. A continuous suite of hkl reflections can be collected with a single

Effects of Noise on Lamb-Mode Acoustic-Emission Arrival Times Determined by Wavelet Transform

December 1, 2005

Author(s)

Marvin A. Hamstad, Agnes O'Gallagher

Precise AE signal arrival times of the fundamental Lamb modes can be obtained from the arrival time of the peak wavelet transform (WT) magnitude at a particular frequency of interest. Since these arrival times are not determined from a fixed threshold

Competing Fracture Modes in Brittle Materials Subject to Concentrated Cyclic Loading in Liquid Environments: Monoliths

August 1, 2005

Author(s)

Yang Zhang, Sanjit Bhowmick, Brian R. Lawn

The competition between fracture modes in monolithic brittle materials loaded in cyclic contact in aqueous environments with curved indenters is examined. Three main modes are identified: conventional outer cone cracks, which form outside the maximum

Numerical Simulation of Liquid Composite Injection/Compression Moding. Part 1: Mesh Generation

June 14, 2000

Author(s)

K M. Pillai, C L. Tucker, Frederick R. Phelan Jr.

This paper presents a numerical simulation of the injection/compression type of liquid composite molding (LCI/CM), where the fiber preform is compressed to a desired degree at the same time as the resin is being injected into the mold. Due to the

Magnetic depth profiling Co/Cu multilayers to investigate magnetoresistance

October 12, 2021

Author(s)

John Unguris, D. Tulchinsky, Michael H. Kelley, Julie Borchers, Joseph Dura, Charles Majkrzak, S. Y. Hsu, R. Loloee, W. P. Pratt, J. Bass

… structures such as these, SEMPA can be combined with ion milling to directly image the layer-by-layer …

Optimization of photoluminescence from W centers in silicon-on-insulator for waveguide-coupled sources

May 13, 2020

Author(s)

Sonia M. Buckley, Alexander N. Tait, Galan Moody, Kevin L. Silverman, Sae Woo Nam, Richard P. Mirin, Jeffrey M. Shainline, Stephen Olson, Joshua Hermann, Satyvalu Papa Rao

… W centers are trigonal defects generated by self-ion implantation in silicon that exhibit photoluminescence at …

Magnetic Order in a-RuCl 3 : A Honeycomb-Lattice Quantum Magnet with Strong Spin-Orbit Coupling

April 24, 2015

Author(s)

J. A. Sears, M. Songvilay, K. W. Plumb, J. P. Clancy, Yiming Qiu, Yang Zhao, Daniel E. Parshall, Young-June Kim

… of single crystal α-RuCl 3 , in which the Ru 3+ (4d 5 ) ion is in its low spin state and forms a honeycomb lattice. …

Magnetic Order of the Hexagonal Rare Earth Manganite Dy 0.5 Y 0.5 MnO 3

August 26, 2011

Author(s)

Joel Helton, Deepak Singh, Harikrishnan S. Nair, Suja Elizabeth

… 3 or other (h)RMnO6d3^ materials with a magnetic R ion. A magnetic field applied parallel to the …

Characterization of a Soluble Anthradithiophene Derivative

October 1, 2010

Author(s)

Brad Conrad, Calvin Chan, Marsha A. Loth, Sean R. Parkin, Xinran Zhang, John E. Anthony, David J. Gundlach

… mobility µS of 0.07cm2/Vs, current on-off ratios Ion/Ioff >107, and subthreshold slopes S ~1dec/V. A …

Molecular Mass Distribution Measurement by Mass Spectrometry

May 19, 2010

Author(s)

William E. Wallace, Charles M. Guttman

… distribution (MMD) is the systematic uncertainty in the ion intensity axis of the mass spectrum. This guide …

Theta-like specimen to determine tensile strength at the micro-scale

March 10, 2010

Author(s)

Michael S. Gaither, Frank W. DelRio, Richard S. Gates, Edwin R. Fuller, Robert F. Cook

… formed from silicon-on-insulator wafers via deep reactive ion etching and tested with instrumented indentation. The …

Synthesis, Structural Characterization, and Electronic Structure of Single-Crystalline CuxV2O5 Nanowires

April 6, 2009

Author(s)

Daniel A. Fischer, C Patridge, Cherno Jaye, H Zhang, Amy Marschilok, E Takeuchi, S Banerjee

… for further tunability of electronic transport and Li-ion intercalation kinetics. A combination of spectroscopic …

Determination of Bitter Orange Alkaloids in Dietary Supplements Standard Reference Materials by Liquid Chromatography With Ultraviolet Absorbance and Fluorescence Detection

April 24, 2007

Author(s)

Karsten Putzbach, Katherine E. Sharpless, Lane C. Sander

… using a reversed-phase C18 stationary phase and the ion-pairing reagent sodium dodecyl sulfate was developed to …

Enthalpy of Solution of Potassium Tetrafluoroborate in Water and in Aqueous Sodium Fluoride. Thermodynamic Properties of the Aqueous Tetrafluoroborate Anion and Potassium Tetrafluoroborate.

February 1, 2005

Author(s)

Donald G. Archer

… thermodynamic properties of the aqueous tetrafluroborate ion and compare these new properties to previous tabulations …

Overview of Metrology for the Semiconductor Industry at the National Institute of Standards and Technology

April 4, 2003

Author(s)

Stephen Knight

… Materials (SRMs) for resistivity, film thickness, and ion implant, to calorimetry for deep ultraviolet (DUV) and …

Influence of Silica Fume on Diffusivity in Cement-Based Materials II. Multi-Scale Modeling of Concrete Diffusivity

July 1, 2000

Author(s)

Dale P. Bentz

… an equation is developed for predicting the chloride ion diffusivity of concrete as a function of water-to-cement …

Magnetic Depth Profiling Co/Cu Multilayers to Investigate Magnetoresistance

May 1, 2000

Author(s)

John Unguris, D Tulchinsky, Michael H. Kelley, Julie A. Borchers, Joseph A. Dura, Charles F. Majkrzak, S. Y. Hsu, R Loloee, W Pratt, J Bass

… structures such as these, SEMPA can be combined with ion milling to directly image the layer-by-layer …

The Development of Standards for Surface Analysis by ISO Technical Committee 201 on Surface Chemical Analysis

October 1, 1997

Author(s)

Cedric J. Powell, R Shimizu

… SC5 on Auger Electron Spectroscopy, SC6 on Secondary Ion Mass Spectrometry, SC7 on X-ray Photoelectron …

Computer Program to Facilitate Performance Assessment of Underground Low-Level Waste Concrete Vaults.

January 1, 1996

Author(s)

Kenneth A. Snyder, J R. Clifton, J M. Pommersheim

… and leaching. The performance prediction is based upon ion transport equations for both diffusion and advection. …

Measuring the Influence of CO2 and Water Vapor on the Dynamics in Polyethylenimine To Understand the Direct Air Capture of CO2 from the Environment

June 5, 2024

Author(s)

Avery Baumann, Takeshi Yamada, Kanae Ito, Chad R. Snyder, John Hoffman, Craig Brown, Christopher Stafford, Christopher Soles

Aminopolymer sorbents are leading candidates for extracting CO2 directly from the atmosphere under ambient conditions. For effective carbon capture, this requires not only that the CO2 actively binds with amine groups of the polymer under low gas

Near Edge X-Ray Absorption Fine Structure (NEXAFS) Studies of Metal Ion-Containing PAMAMOS Dendrimer Networks

October 12, 2021

Author(s)

Robert A. Bubeck, P Dvornic, J Hu, A Hexemer, X Li, S E. Keinath, Daniel A. Fischer

… X-Ray Absorption Fine Structure (NEXAFS) Studies of Metal Ion-Containing PAMAMOS Dendrimer Networks …

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