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Displaying 376 - 400 of 632

Electron Dynamics of Crystalline 4-He at High Pressures

October 29, 2010
Author(s)
Eric L. Shirley, H. K. Mao, Yang Ding, Peter Eng, Yong Q. Cai, Paul Chow, Yuming Xiao, Jinfu Shu, Russell J. Hemley, Chichang Kao, Wendy L. Mao
… 4He in a high-pressure diamond-anvil cell. At 13.4 GPa, we observed the full electron excitation spectrum, … exciton peak, and a series of excitation peaks at 26 eV to 45 eV. We determined the excitonic dispersion in the Gamma-M … Electron Dynamics of Crystalline 4-He at High Pressures …

Dissolution Dynamics of Artificially Structured Materials

October 16, 2008
Author(s)
M Shima, L Salamanca-Riba, Thomas P. Moffat
… cobalt and copper layers from a solution of 1.5 mol/L CoSO 4 , 0.5 mol/L H 3 BO 3 and 0.008 mol/L CuSO 4 . Subsequent stripping analyses were preformed in the same … dissolution occured when the cobalt layer was thicker than 45 MEQ. These experiments provide guidance in selecting …

Manganese(III) Biliverdin IX Dimethyl Ester: A Powerful Catalytic Scavenger of Superoxide Employing the Mn(III)/Mn(IV) Redox Couple

February 1, 2001
Author(s)
I Spasojevic, I Batinic-Haberle, R D. Stevens, P Hambright, A N. Thorpe, J Grodkowski, Pedatsur Neta, I Fridovich
… ester molecule. This type of coordination stabilizes the + 4 metal oxidation state, whereby the +3/+4 redox cycling of the manganese in aqueous medium was found to be at E 1/2 = + 0.45 V vs NHE. This potential allows the Mn(III)/Mn(IV) couple …

Tool Wear Mechanism in Continuous Cutting of Hardened Tool Steels

November 4, 1997
Author(s)
Y K. Chou, Christopher J. Evans
… increases with decreasing CBN grain size; and 4) in finish turning with low CBN content tools, the … an ultrafine CBN grain tool shows flank wear less than 45 ?m VBmax after 6.2 km cutting distance; this wear rate …

Crystallography, Morphology, Electronic Structure, and Transport in Non-Fullerene/Non-Indacenodithienothiophene Polymer:Y6 Solar Cells

July 22, 2020
Author(s)
Weigang Zhu, Subhrangsu Mukherjee, Joaquin Alzola, Vinod K. Sangwan, Samuel H. Amsterdam, Steven M. Swick, Leighton Jones, Michael Heiber, Guoping Li, Kevin L. Kohlstedt, Charlotte Stern, Dean DeLongchamp, Mark C. Hersam, George C. Schatz, Michael R. Wasielewski, Antonio Facchetti, Andrew Herzing, Lin Chen, Tobin Marks
… the 3D electron transport, and relatively high μe of 10–4 cm2 V–1 s–1. Taken together, this work clarifies the …

Partitioning of Water Between Voids and the Polymer Matrix in a Molding Compound by Proton NMR

October 16, 2008
Author(s)
David L. VanderHart, Michael A. Schen, G T. Davis
… cresol-novolac epoxy, was fabricated into a 0.4 mm sheet, using methods mimicking commercial fabrication of … volume fraction of voids, i.e., empty regions larger than 4 nm in radius, and to study their possible role in producing … reduced by 20%, the fraction of matrix-water increased by 45% and the longitudinal relaxation time for the void water …

Tailoring electrode-electrolyte-interfaces in lithium-ion batteries using molecularly engineered functional polymers

February 22, 2021
Author(s)
Laisuo Su, Jamie Weaver, Mitchell C. Groenenboom, Nathan Nakamura, Eric Rus, Priyanka Anand, Shikhar Krishn Jha, Joseph Okasinski, Joseph Dura, B Reeja-Jayan
… presence of sufficient binding sites for Li+ allow poly(3,4-ethylenedioxythiophene) (PEDOT) based artificial coatings … electrolyte decomposition. As a result, the LiCoO2 4.5 V cycle life tested at C/2 increases over 1700% after …

High Temperature Singlet-Based Magnetism from Hund's Rule Correlations

February 7, 2019
Author(s)
Lin Miao, Rourav Basak, Sheng NMN Ran, Yishuai Xu, Erica Kotta, Haowei He, Jonathan D. Denlinger, Yi-De Chuang, Yang Zhao, Zhijun Xu, Jeffrey W. Lynn, J. R. Jeffries, Shanta Ranjan Saha, Ioannis Giannakis, Pegor Aynajian, Chang-Jong Kang, Yilin Wang, Gabriel Kotliar, Nicholas Butch, L. Andrew Wray
… coexist in heavy heavy fermions. Finally, at T* = 45 K we discover a novel electronic transition through the …

A reference high-pressure CO2 adsorption isotherm for ammonium ZSM-5 zeolite: results of an interlaboratory study

July 26, 2018
Author(s)
Huong Giang T. Nguyen, Laura Espinal, Roger D. van Zee, Matthias Thommes, Blaza Toman, Sterlin Hudson, Enzo Mangano, Stefano Brandani, Katie Cychosz, Pieter Bertier, Feng Yang, Bernhard Krooss, Rebecca Siegelman, Jeffrey Long, Yoko Nakada, Kazu Nakai, Armin Ebner, James Ritter, Aaron Moran, Orhan Talu, Yi Huang, Krista Walton, Pierre Billemont, Guy de Weireld
… ZSM-5 zeolite), at 293.15 K (20 °C) from 1 kPa up to 4.5 MPa. Eleven laboratories participated in this exercise … P-equilibrium pressure (MPa), a = −6.22, b = 1.97, c = 4.73, and d = 3.87] along with the 95% uncertainty interval …

Stuck in a moment: A view from the MIRE

April 20, 2017
Author(s)
Patrick Egan, Jack A. Stone Jr., Jacob Edmond Ricker, Jay H. Hendricks
… require the measurement of a 15 cm optical length with 4.5 pm accuracy. We are pursuing two approaches to the …
Displaying 376 - 400 of 632
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