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Displaying 1776 - 1800 of 3842

The Design and Performance of a Second-Generation Phi Meter

January 5, 2022
Author(s)
Ryan Falkenstein-Smith, Thomas Cleary
… instrument and verifying measurements via the carbon to hydrogen ratio and mass balance. The bench-scale experiments … ratio, water vapor concentration, and carbon to hydrogen ratio measurements are in fair agreement with their … Real-time global and local equivalence ratio and carbon to hydrogen ratio measurements obtained during a backdraft …

Varieties of Hyphenated Gas Chromatography with Mass Spectrometry

June 4, 2014
Author(s)
Thomas J. Bruno
… and that are highly specific in research settings (such as ion cyclotron mass spectrometry, and combined quadrupoles … quad, and the various hybrid sector-quad-time of flight-ion trap combinations) that are used in fundamental ion chemistry research. We also exclude magnetic sector …

Ferrocene as a Hydrophobic Templating Agent with Pyrogallol[4]arenes

July 11, 2011
Author(s)
Andrew V. Mossine, Harshita Kumari, Drew A. Fowler, Andrew K. Maerz, Steven R. Kline, Charles L. Barnes, Jerry L. Atwood
… The overall assembly is stabilized by an extensive hydrogen-bonding framework involving the upper rim of the … contains dimers of PgC1 sealed at the upper rims via hydrogen bonding interactions with four water molecules. The …

H Atom Attack on Propene

March 15, 2011
Author(s)
Claudette M. Rosado-Reyes, Jeffrey A. Manion, Wing Tsang
… The reaction of propene(CH3CH=CH2) with hydrogen atoms has been investigated in a heated … The rate constant for the abstraction of the allylic hydrogen atom is determined to be, k (H + Propene → CH2CH=CH2 …

Non-volatile Multi-level Switching in Artificial Synaptic Transistors Based on Epitaxial LiCoO2 Thin Films

October 26, 2021
Author(s)
Heshan Yu, Megan E. Holtz, Yunhui Gong, Justin Pearson, Yaoyu Ren, Andrew Herzing, Xiaohang Zhang, Ichiro Takeuchi
… Li-ion synaptic transistors offer non-volatile multi-level switching through Li-ion exchange between channel and electrolyte, and thus are … investigate of the multi-switching operation in the Li-ion synaptic devices fabricated on epitaxial Li1-xCoO2 (LCO) …

Mechanism of Dynamic NBTI of pMOSFETs

October 21, 2004
Author(s)
Baozhong Zhu, John S. Suehle, Joseph B. Berstein
… under pulsed bias conditions. A reduction of Vth and Ion is observed for pulse periods shorter than critical time … model is developed to explain the reduction of Vth and Ion as a function of pulse repetition frequency. …

Learning Atom Probe Tomography time-of-flight peaks for mass-to-charge ratio spectrometry

April 2, 2022
Author(s)
Kevin J. Coakley, Norman A. Sanford
… the mass-to-charge ratio, (m/z), spectrum due to various ion species. In general, the probability mass function (pmf) … with the time-of- flight (TOF) spectrum produced by each ion species is unknown and varies from species-to-species. Moreover, measuring pmfs for distinct ion species in calibration experiments is not practical. …

Localization Model Description of Diffusion and Structural Relaxation in Superionic Crystalline UO2

August 15, 2019
Author(s)
Jack F. Douglas, Hao Zhang, Xinyi Wang
… between the α-structural relaxation time τα and oxygen ion diffusion coefficient DO with the Debye-Waller factor for … interactions lead to non-Arrhenius relaxation and high ion mobility. As in a previous study of structural relaxation … and the long-time structural relaxation time and oxygen ion diffusion coefficient holds to an excellent approximation …

Eu 3+ -Doped Wide Band Gap Zn 2 SnO 4 Semiconductor Nanoparticles: Structure and Luminescence

August 3, 2016
Author(s)
Mirjana NMN Dimitrievska, Tamara B. Ivetic, Alexander P. Litvinchuk, Andrew Fairbrother, Bojan B. Miljevic, Goran R. Strbac, Alejandro Perez-Rodriguez, Svetlana R. Lukic-Petrovic
Nanocrystalline Zn 2SnO 4powders doped with Eu 3+ ions were synthesized via a mechanochemical solid-state reaction method followed by post annealing in air at 1200 °C. X-ray diffraction (XRD), energy-dispersive X-ray (EDX), Raman and photoluminescence (PL)
Displaying 1776 - 1800 of 3842
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