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NIST Authors in Bold

Displaying 1526 - 1550 of 2934

High Effeciency Fast Scintillators for the Development of Optical Soft X-Ray Arrays for Laboratory Plasma Diagnostics

August 20, 2007
Author(s)
L F. Delgado-Aparicio, R Vero, D Stutman, M Finkenthal, K Tritz, G Suliman, H W. Moos, R Kaita, R Majeski, B Stratton, L Roquemore, D Johnson, Charles Tarrio
Scintillator-based optical soft x-ray (OSXR) arrays may in the near future, replace the conventional diode arrays used for plasma imaging, tomographic reconstruction, magnetohydrodynamics, transport and turbulence studies in magnetically confined fusion

Micropatterning Neuronal Cells on Polyelectrolyte Multilayers

July 7, 2004
Author(s)
Darwin Reyes-Hernandez, Elizabeth M. Perruccio, Patricia Becerra, Laurie E. Locascio, Michael Gaitan
This paper describes an approach to adhere retinal cells on micropatterned polyelectrolyte multilayer (PEM) lines adsorbed on polydimethylsiloxane (PDMS) surfaces, using microfluidic networks. PEMs were patterned on flat oxidized PDMS surfaces by

Finite Element Simulation of Straight Plunge Grinding for Advanced Ceramics

September 1, 2002
Author(s)
Tze J. Chuang, S Jahanmir, Hai C. Tang
The objective of this work is to model the grinding forces and the associated stress and deformation fields generated in a ceramic workpiece during surface plunge grinding. A two-dimensional finite element model is constructed with the grinding parameters

Role of Flaw Statistics in Contact Fracture of Brittle Coatings

October 1, 2001
Author(s)
P Miranda, Antonia Pajares, F Guiberteau, F Cumbrera, Brian R. Lawn
A flaw statistics analysis is here developed to account for systematic differences between experimentally observed and theoretically predicted critical loads for the initiation of contact-induced radial cracks in brittle coatings on compliant substrates

Electrical Control of the Spatial Uniformity of Reactive Species in Plasmas

December 1, 1999
Author(s)
Mark A. Sobolewski, Kristen L. Steffens
We report a new method for controlling the spatial distribution of reactive chemical species in a parallel-plate reactor, by means of a variable-impedance load placed between the unpowered electrode and ground. The technique was demonstrated in 89% CF(sub4

Plastic Flip-Chip-BGA Carrier With Microvias for Chip Scale Packaging

June 2, 1998
Author(s)
Jan Obrzut, M Jimarez
We evaluated a near-chip-scale package, that utilizes the flip-chip, plastic-ball-grid-array technology with microvias. The microvias were photolithographically patterned in built-up dielectric layers. We verified optimal conditions for photo-exposure and

Imperfect Surface Order and Functionalization in Vertical Carbon Nanotube Arrays Probed by Near Edge X-ray Absorption Fine Structure Spectroscoy (NEXAFS)

October 12, 2021
Author(s)
T Hemraj-Benny, S Banerjee, S Sambasivan, Daniel A. Fischer, G Eres, Alexander Puretzky, David B. Geohegan, D H. Lowndes, J A. Misewich, S S. Wong
Probing surface order in nanotube systems is of fundamental importance for incorporation of these materials into practical electronic devices. The current study pertains to analysis of the surface orientation of vertically aligned single-walled and multi

Improved Transition Oscillator Probabilities for Laser Transitions in Xe I

October 12, 2021
Author(s)
Abhijit Dasgupta, J P. Apruzes, O Zatsarinny, K Bartschat, Charlotte F. Fischer
The atomic xenon laser is among the most efficient and powerful of thenear-infrared gas lasers, especially when pumped by molecular ions in an Ar-Xemixture. Accurate oscillator strengths for the laser transitions are criticaltodeveloping a fundamental

Investigating Sub-bandgap Spectral Effects in GaInP-on-Ge Solar Cells

August 26, 2021
Author(s)
Brianna Conrad, Behrang Hamadani
There is a fundamental understanding in photovoltaics that sub-bandgap light will not be absorbed in the solar cell and therefore will not affect the power generation. We have shown a novel phenomenon in which sub-bandgap illumination is required for good

Developing Next-generation Brain Sensing Technologies - A Review

July 22, 2019
Author(s)
Jacob T. Robinson, Eric Pohlmeyer, Malte C. Gather, Caleb Kemere, John Kitching, George G. Malliaras, Adam Marblestone, Kenneth L. Shepard, Thomas Stieglitz, Chong Xie
Advances in sensing technology raise the possibility of creating neural interfaces that can more effectively restore or repair neural function and reveal fundamental properties of neural information processing. To realize the potential of these

Harmonization of LC-MS/MS protein assays

September 24, 2018
Author(s)
Alan L. Rockwood, Mark Lowenthal, Cory Bystrom
Harmonization of diagnostic test results is fundamental to the effective use of laboratory testing in the diagnosis, treatment and monitoring of disease. Formal approaches to harmonization and standardization provide a rigorous and high quality Roadmap to

Fabrication of High-Speed and High-Density Single-Flux-Quantum Circuits at NIST

June 11, 2017
Author(s)
David Olaya, Paul Dresselhaus, Pete Hopkins, Samuel P. Benz
The development of a fabrication process for single-flux-quantum (SFQ) digital circuits is a fundamental part of the NIST effort to develop a gigahertz waveform synthesizer with quantum voltage accuracy. This paper describes the current SFQ fabrication

Mid-infrared molecular spectroscopy in the quantum noise limit

March 31, 2016
Author(s)
David A. Long, Adam J. Fleisher, Qingnan Liu, Joseph T. Hodges
A cavity ring-down spectrometer was used to reach the quantum noise limit in the mid-infrared spectral region. Quantum noise was observed not only in the individual ring-down decay events but also in the corresponding ensemble statistics with a magnitude

Archaeal DNA replication

November 3, 2014
Author(s)
Zvi Kelman, Lori M. Kelman
DNA replication is an essential process for all life forms. While the process is fundamentally conserved in the three domains of life, bioinformatics, biochemical, structural and genetic studies have demonstrated that the process and the proteins involved

Dielectrofluidics for Electronic-Based Chemical and Particle Analysis

August 18, 2014
Author(s)
James C. Booth, Spencer T. Egan, Charles A. Little, A Padilla, Yu Y. Wang, Nathan D. Orloff
The interactions of electromagnetic fields with matter are described by means of the polarization and magnetization of the material under study. Analogous to the way that magnetofluidics seeks to exploit magnetic interactions for sensing and manipulating

A Two-Port Model for Antennas in an Arbitrary Environment

May 1, 2014
Author(s)
Jason B. Coder, John M. Ladbury, Mark Golkowski
We present an improved model for characterizing fundamental antenna parameters based on the concept of a passive realizable two-port network. The proposed model is consistent with circuit theory based approaches and allows for quantitative description and
Displaying 1526 - 1550 of 2934
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