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Search Publications

NIST Authors in Bold

Displaying 5276 - 5300 of 73697

First Results With Small Cam-Driven Absolute Gravimeter

October 12, 2021
Author(s)
A L. Vitouchkine, J E. Faller
We describe the design and first results of a cam-driven portable absolute gravinieter. The cam-based design of a dropper allows us to builda compact system that uses 20 mm of free-fall for the measurement. The instrument drops a test mass 200 times a

Fluctuation Effects on Surface Pattern Formation in Thin Block Copolymer Films

October 12, 2021
Author(s)
A C. Smith, Jack F. Douglas, Eric J. Amis, Alamgir Karim
Hole formation on the surface of thin block copolymer films is investigated as a function of time (t), temperature (T) and film thickness. The size of the holes, h s, approaches a steady state value at long times h s,∞ = h s(t -> ∞) and we introduce a

Fluoroscent Probe for Cure Monitoring of Hydrosilation-Curable Silicone

October 12, 2021
Author(s)
Y Hotta, K Komatsu, Francis W. Wang
This study aimed to evaluate a fluorescent probe, 9,10-bis-(phenylethynyl) anthracene (BPEA), for cure monitoring of hydrosilation-curable silicone (HCS). The HCS consisted of 74.9 % mass fraction of vinyl terminated polydimethylsiloxane (DV-PDMS)

Functional Oligothiophenes for Use in Self-Assembled Monolayer Field-Effect Transistors

October 12, 2021
Author(s)
A R. Murphy, Clayton Mauldin, J M. Frechet, Paul C. Chang, Kanan Putambekar, Kin-Yip Phoa, V Subramanian, Dean DeLongchamp, Daniel A. Fischer, Eric K. Lin
Asymmetric, end-functionalized thiophene oligomers capable of self-assembly and covalent bonding to silicon surfaces have been synthesized. Monolayer films were made using solution or Langmuir-Blodgett deposition techniques. Characterization of the films

Generalized Pseudo-Potentials for Higher Partial Wave Scattering

October 12, 2021
Author(s)
R Stock, A Silberfarb, I H. Deutsch, E L. Bolda
We derive a generalized zero-range pseudo-potential applicable to all partial wave solutions to the Schrodinger equation based on a delta-shell potential in the limit that the shell radius approaches zero. This properly models all higher order multipole

Giant Magnetoresistive Spin-Valve Transpinnor

October 12, 2021
Author(s)
S Bae, S Zurn, William F. Egelhoff Jr., P J. Chen, L Sheppard, E J. Torok, J H. Judy
A giant magnetoresistive (GMR) spin-valve Transpinnor, a new kind of active solid-state magneto-electronic device or spin-transistor, has been fabricated and investigated for the first time using anti-ferromagnetic oxide exchange biased bottom GMR spin

Growth of Magnetic Nanowires in an Applied Field

October 12, 2021
Author(s)
R D K. Misra, H Nathani, William F. Egelhoff Jr.
Nanostructured quasi one-dimensional magnetic materials (nanowires) have attracted significant scientific and technological interest because they exhibit unique magnetic properties not displayed by their bulk or nanoparticle counterparts. Nanocrystalline

High Sensitivity CARS Microscopy With Two Tightly SynChronized Picosecond Lasers

October 12, 2021
Author(s)
J Potman, D J. Jones, J X. Cheng, X. Xie, Jun Ye
We demonstrate a significant improvement in signal-to-noise ratio recovered from coherent anti-Stokes Raman scattering (CARS) spectroscopy/microscopy, using two tightly synchronized picosecond Ti: sapphire lasers. A temporal jitter between the pulse trains

High-Resolution Ultrasonic Thermometer for Radiation Dosimetry

October 12, 2021
Author(s)
Eugene Malyarenko, Joseph Heyman, Heather H. Chen-Mayer, Ronald Tosh
This paper describes recent developments in the area of high-precision This paper describes recent developments in the area of high-precision ultrasonic thermometry with the potential to provide on-site direct determination of radiation dose and its

Highly Phase Stable Modelocked Lasers

October 12, 2021
Author(s)
T M. Fortier, D J. Jones, Jun Ye, Steven T. Cundiff
We report on stabilizing the carrier-envelope phase of modelocked Ti:sapphire lasers. Optimization of the construction of the lasers for ease of phase stabilization is discussed. Results demonstrating long term phase coherence of the generated pulse train

Homological Metrics for Microstructure Response Fields in Polycrystals

October 12, 2021
Author(s)
Lin-Sien H. Lum, D M. Saylor, Thomas Wanner
Quantitative homological metrics are proposed for characterizing the thermal-elastic response of calcite-based polycrystals. The characterization is based on topological measurements, such as the number of components and the number of handles of a complex

Human Mitochondrial Protein Database: A Resource for Human Mitochondrial Proteomics

October 12, 2021
Author(s)
Veerasamy Ravichandran, A S. Khan, Peter E. Barker, G B. Vasquez, S J. Zullo, Talapady N. Bhat, G L. Gilliland
A publicly available web-based resource, the Human Mitochondrial Protein Database (HMPD), has been developed to unify data from a broad collection of related resources that provides information about human nuclear and mitochondrial-encoded proteins. This

Hydraulically Pumped Cone Fracture in Bilayers With Brittle Coatings

October 12, 2021
Author(s)
H Chai, Brian R. Lawn
An earlier FEM analysis of inner cone cracks in monolithic brittle solids subject to cyclic indentation in liquids is extended to include the case of a brittle layer bonded to a compliant substrate, using a model glass/polycarbonate bilayer system as an

Hydrodynamic Flow in Capillary-Channel Fiber Columns for Liquid Chromatography

October 12, 2021
Author(s)
R Stanelle, Lane C. Sander, R K. Marcus
The evaluation of the basic flow characteristics of capillary-channeled polymer (C-CP) fibers proposed for use as the stationary phases for reversed-phase liquid chromatographic separations has been investigated. Stainless steel HPLC columns packed with

Hydrogel-Immobilized Antibodies for Microfluidic Immunoassays

October 12, 2021
Author(s)
Gloria Thomas, Emad E. El-Giar, Laurie E. Locascio, Michael J. Tarlov
The integration of immunoassays in microfluidic devices is a rapidly developing research area combining the power of immunoassays with the inherent benefits of microfluidics. Here, a general overview of microfluidic-based immunoassays is presented along
Displaying 5276 - 5300 of 73697
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