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Displaying 1451 - 1475 of 4634

Electrolytes that reduce electro-osmotic drag improve fast charging of lithium-ion batteries

May 13, 2025
Author(s)
Chang-Xin Zhao, Zeyi Wang, David Jacobson, Yue Li, Boris Khaykovich, Sean Fayfar, Jacob LaManna, Daniel Hussey, Lei Zheng, Gabriel Veith, Fu Chen, Chunsheng Wang
… greater than 4 C) is essential for high-energy lithium-ion batteries in electric vehicles yet remains challenging … optimization strategies concentrate on shortening lithium-ion transport pathways through electrode structure … electro-osmotic drag improve fast charging of lithium-ion batteries …

Superconformal Film Growth

October 1, 2002
Author(s)
Thomas P. Moffat, Daniel Wheeler, Daniel Josell
Superconformal electrodeposition of copper is explained by the recently developed curvature enhanced accelerator coverage (CEAC) mechanism. The model stipulates that 1. the growth velocity is proportional to the local accelerator, or catalyst, surface

Atom Probe Tomography Using an Extreme Ultraviolet Trigger Pulse

September 1, 2023
Author(s)
Benjamin Caplins, Ann Chiaramonti Debay, Jacob Garcia, Norman A. Sanford, Luis Miaja Avila
… most often uses an optical pulse to trigger field ion evaporation -- most commonly, the second or third … extreme ultraviolet (EUV) optical pulses to trigger field ion emission. The EUV light is generated via a commercially … the instrument's ability to successfully trigger field ion emission from semiconductor (Si, GaN) and insulating …

Novel Detection Method for DNA Hybridization Based on Molecular Spotlighting

February 1, 2000
Author(s)
T H. Huang, Michael J. Tarlov
… of thiol-derivatized DNA probes (SH-DNA) immobilized on gold surfaces is currently being developed. The gold surface is modified with mixed monolayers of the SH-DNA … fluorophore is expected to be in close proximity to the gold surface, resulting in the quenching of the fluorescence …

Separation, Sizing, and Quantitation of Engineered Nanoparticles in an Organism Model Using Inductively Coupled Plasma Mass Spectrometry and Image Analysis

December 16, 2016
Author(s)
Monique E. Johnson, Shannon Hanna, Antonio R. Montoro Bustos, Christopher M. Sims, Lindsay C. Elliott, Babak Nikoobakht, John T. Elliott, Richard D. Holbrook, Keana C. Scott, Karen E. Murphy, Elijah J. Petersen, Lee L. Yu, Bryant C. Nelson, Akshay Lingayat, Adrian C. Johnston
… exposure. Here, we measure the uptake of 30 and 60 nm gold nanoparticles (AuNPs) by the nematode, Caenorhabditis … Caenorhabditis elegans, gold nanoparticles, nanotoxicity, single particle ICP-MS, …

Distribution and Retention of 137 Cs in Sediments at the Hanford Site, Washington

September 1, 2001
Author(s)
J P. McKinley, Cynthia J. Zeissler, J M. Zachara, R J. Serne, Richard M. Lindstrom, H T. Schaef, R D. Orr
sium-137 and other contaminants have leaked from many of the single-shell storage tanks at the Hanford Site in southeastern Washington. The leakage was into sandy unconsolidated sediments consisting largely of quartz, plagioclase, micas, smectite, and

Collision-Induced Dissociation of Deprotonated Peptides. Relative Abundance of Side-Chain Neutral Losses, Residue-Specific Product Ions, and Comparison with Protonated Peptides

November 14, 2017
Author(s)
Yuxue Liang, Pedatsur Neta, Xiaoyu (Sara) Yang, Stephen E. Stein
… High-accuracy MS/MS spectra of deprotonated ions of 390 dipeptides and 137 peptides with 3 to 6 residues … in deprotonated peptides produce specific negative ions after peptide bond cleavage. An expanded list of fragment ions from protonated peptides is also presented and compared …

Interface Characterization of Molecular-Monolayer/SiO2 Based Molecular Junctions

April 19, 2006
Author(s)
Curt A. Richter, Christina Hacker, Lee J. Richter, Oleg A. Kirillov, John S. Suehle, Eric M. Vogel
We present a correlation of the results of dc-current-voltage (IV) and ac-capacitance-voltage (CV) measurements with vibrational spectroscopy of Au/monolayer/SiO2/Si structures to establish an improved understanding of the interactions at the buried metal/

On Low-Energy Tail Distortions in the Detector Response Function of X-Ray Microcalorimeter Spectrometers

November 21, 2019
Author(s)
Galen C. O'Neil, Paul Szypryt, Endre Takacs, Joseph N. Tan, Sean W. Buechele, Aung Naing, Young I. Joe, Daniel S. Swetz, Daniel R. Schmidt, William B. Doriese, Johnathon D. Gard, Carl D. Reintsema, Joel N. Ullom, John S. Villarrubia, Yuri Ralchenko
We use narrow spectral lines from the X-ray spectra of various highly charged ions to measure low-energy tail-like deviations from a Gaussian response function in a microcalorimeter X-ray spectrometer with Au absorbers at energies from 650 to 3320 eV. We

Microlithography by Using Neutral Metastable Atoms and Self-Assembled Monolayers

September 1, 1995
Author(s)
K K. Berggren, A Bard, J L. Wilbur, John D. Gillaspy, A G. Helg, Jabez J. McClelland, S Rolston, William D. Phillips, M Prentiss, G M. Whitesides
… self-assembled monolayers (SAMs) of alkanethiolates on gold. An estimated exposure of a SAM of dodecanethiolate … an aqueous solution of ferricyanide to the surface of the gold. This solution etched the gold and transformed the patterns in the SAMs into structures …

Chloride Ion Activity and Susceptibility of Al Alloys 7075-T6 and 5083-H131 to Stress Corrosion Cracking

March 1, 2013
Author(s)
Richard E. Ricker, Eun Lee, R. Taylor, C. Lei, B. Pregger, E. Lipnickas
… The influence of chloride ion activity on the susceptibility of aluminum alloys … and ductility of both alloys decreased with chloride ion activity in a manner that indicates a chemical reaction … of magnitude slower. It was deduced that the chloride ion interacts chemically with the passivated surface in the …

High-Throughput Nanopore Fabrication and Classification Using Xe-Ion Irradiation and Automated Pore-Edge Analysis

September 26, 2022
Author(s)
Michal Macha, Sanjin Marion, Mukesh Tripathi, Martina Lihter, Alex Smolyanitsky, Andras Kis, Aleksandra Radenovic
… permeation properties. In this work, we investigate Xe-ion focused ion beam as a tool for scalable, large-area nanopore … are investigated in terms of their emerging water and ion flow properties through extensive all-atom molecular … Nanopore Fabrication and Classification Using Xe-Ion Irradiation and Automated Pore-Edge Analysis …

Non-magnetic ion site disorder effects on the quantum magnetism of a spin-1/2 equilateral triangular lattice antiferromagnet

March 10, 2022
Author(s)
Qing Huang, R. Rawl, W. W. Xie, E. S. Chou, V. S. Zapf, X. X. Ding, C. Mauws, C. R. Wiebe, E. X. Feng, H. B. Cao, W. Tian, J. Ma, Yiming Qiu, Nicholas Butch, H. D. Zhou
… With the motivation to study how non-magnetic ion site disorder affects the quantum magnetism of … of Ba2.87Sr0.13CoSb2O9 with Sr doping on non-magnetic Ba2+ ion sites. The results show that Ba2.87Sr0.13CoSb2O9 exhibits … Ba3CoSb2O9, which demonstrates that the non-magnetic ion site disorder (the Sr doping) plays a complex role on the …

A Progress Report on the NIST Convective Heat Flux Calibration Facility

March 15, 1999
Author(s)
David G. Holmberg, C A. Womeldorf
The National Institute of Standards and Technology has developed a convective heat flux calibration facility to allow evaluation of heat flux sensors. This facility is a small wind tunnel that produces a two-dimensional laminar boundary layer across a
Displaying 1451 - 1475 of 4634
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