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Displaying 2501 - 2525 of 3758

Synchrotron X-ray Investigation of alpha-Chlorohemin, C34H32ClFeN4O4, an Fe-porphyrin

January 28, 2016

Author(s)

Winnie K. Wong-Ng, James A. Kaduk, Lawrence P. Cook, B Chakraborty, Greg Brewer

… for obtaining the structure including positions of hydrogen atoms. The structure was found to be P-1, Z = 2; at …

Microsensor Analyses for Trace Targets over Extended Times in a Simulated Martian Environment

November 6, 2013

Author(s)

Kurt D. Benkstein, Phillip H. Rogers, Christopher B. Montgomery, Stephen Semancik, C. Jin, Baranidharan Raman

… surface. Gas-phase target analytes (methane, ethane, hydrogen and sulfur dioxide) in complex ternary mixtures at …

Formation of Extended Ionomeric Network by Bulk Polymerization of L,D-lactide with Layered Double Hydroxide

November 22, 2012

Author(s)

Edward D. McCarthy, Mauro Zammarano, Douglas M. Fox, Ryan Nieuwendaal, Yeon S. Kim, P H. Maupin, Paul C. Trulove, Jeffrey W. Gilman

… is proposed that INSOL is an ionomeric network comprising hydrogen-bonded, or otherwise co-ordinated, lactic acid …

Metal-Molecule-Silicon Junctions Produced by Flip Chip Lamination of Dithiols

February 1, 2011

Author(s)

Michael A. Walsh, Curt A. Richter, Christina A. Hacker

… to covalently attach self-assembled monolayers to a hydrogen-passivated Si(111) surface. Several dithiol …

Effect of Copolymer Composition on Acid Catalyzed Deprotection Reaction Kinetics in Model Photoresists

June 25, 2006

Author(s)

Shuhui Kang, Vivek M. Prabhu, B D. Vogt, Eric K. Lin, Wen-Li Wu, Karen Turnquest

… The severely reduced acid transport is consistent with hydrogen bonding between photoacid and methacrylic acid …

What is the fastest event (shortest time duration) that can be measured with today's technology and how is this done?

December 27, 2004

Author(s)

Thomas R. O'Brian, Scott A. Diddams

… cycles, and in a simplistic picture the electron of a hydrogen atom could circle its proton about 1 quadrillion …

Structure and Reaction in the Active Site of Mammalian Adenylyl Cyclase

April 8, 2004

Author(s)

Y. S. Lee, Morris Krauss

… b phosphate groups yields the product still bound by many hydrogen bonds in the active site. …

Molecular Devices formed by Direct Monolayer Attachment to Silicon

December 10, 2003

Author(s)

Curt A. Richter, Christina A. Hacker, Lee J. Richter

… attachment of long-chain aliphatic molecules to hydrogen-terminated Si surfaces formed to pursue the …

Laboratory kinetics of C 2 H radical reactions with ethane, propane and n-butane at T = 96-296 K: Implicatiions for Titan

May 1, 2003

Author(s)

J E. Murphy, A B. Vakhtin, S R. Leone

… dependence. The results from this work support a direct hydrogen abstraction mechanism for the title reactions. …

Accurate spectral characterization of polarization dependent loss

September 1, 2000

Author(s)

Rex M. Craig

… broadband source. The sweep is calibrated in real-time by hydrogen cyanide reference lines. Actively balanced …

Size and Confinement Effects on the Glass Transition Behavior of Polystyrene/O-Terphenyl Polymer Solutions

March 1, 2000

Author(s)

J K. Park, G B. McKenna

… in similar systems. Although oTP and oTP/PS are not hydrogen bonding materials, we interpret the higher …

Lifetime-Limited Interrogation of Two Independent 27Al+ Clocks using Correlation Spectroscopy

December 9, 2020

Author(s)

Ethan Clements, May E. Kim, Kaifeng Cui, Aaron M. Hankin, Samuel M. Brewer, Jose Valencia, Jwo-Sy Chen, Chin-wen Chou, David Leibrandt, David Hume

Laser decoherence limits the stability of optical clocks by broadening the observable resonance linewidths and adding noise during the dead time between clock probes. Correlation spectroscopy avoids these limitations by measuring correlated atomic

Generating multiscale gold nanostructures on glass without sidewall deposits using minimal dry etching steps

March 19, 2019

Author(s)

Saugandhika S. Minnikanti, Jungjoon Ahn, Yaw S. Obeng, Darwin Reyes-Hernandez

… Reactive Ion Etching, Nanofeatures, Gold nano electrodes, multi scale …

Probing beyond the laser coherence time in optical clock comparisons

March 30, 2016

Author(s)

David B. Hume, David R. Leibrandt

… optical clock, optical lattice, quantum metrology, trapped ion …

Detection of l-C3H+ in Sgr B2(N) and Sgr B2(OH) and Refinement of its Spectroscopic Constants via the Publicly Available PRIMOS Survey and the Barry E. Turner Legacy Survey

September 1, 2013

Author(s)

Francis J. Lovas, Brett A. McGuire, P. B. Carroll, Ryan A. Loomis, Geoffery A. Blake, Jan M. Hollis, Phillip R. Jewell, Anthony J. Remijan

… interstellar molecule, ion, molecular clouds, radio astronomy, spectral analysis, …

Stable Field Emission from Nanoporous Silicon Carbide

February 15, 2013

Author(s)

Myung Gyu Kang, Henri Lezec, Fred Sharifi

… Silicon Carbide, Electrochemical Etching, Focused Ion Beam …

Long-term stability of metal-envelope enclosed ionization gauges

December 1, 2012

Author(s)

James A. Fedchak, Dana R. Defibaugh

… gauge, calibration, stability, vacuum measurement, ion-gauge pumping speed …

Review of the 3rd Non-LTE Code Comparison Workshop

May 31, 2005

Author(s)

Y Ralchenko, R W. Lee, C Bowen

… ion population, non-LTE, plasma emission, plasma kinetics, …

Quantitative Measurement of Arsenic Implant Dose by SIMS

January 1, 2005

Author(s)

David S. Simons, P Chi, K J. Kim

… arsenic, depth-profiling, ion implant, round-robin study, silicon, SIMS …

Comprehensive Data Evaluation Methods Used in Developing the SWGDRUG Mass Spectral Reference Library for Seized Drug Identification

October 8, 2024

Author(s)

Weihua Ji, William Wallace

The mass spectral library of the Scientific Working Group for the Analysis of Seized Drugs (SWGDRUG) is the most comprehensive free reference database of its kind in the world. It provides reliable mass spectra for identification of seized drugs, their

Topological Hall Effect Induced by Chiral Fluctuations in ErMn6Sn6

September 24, 2024

Author(s)

Kyle Fruhling, Alenna Streeter, Sougata Mardanya, Xiaoping Wang, Priya Baral, Oksana Zaharko, Igor Mazin, Sugata Chowdhury, William Ratcliff, Fazel Tafti

… between Mn kagome layers. In YMn6Sn6, the rare-earth ion Y3+ is nonmagnetic. When it is replaced by a magnetic ion (Gd3+ − Ho3+), the intrinsically antiferromagnetic Mn-Mn …

Rapid GC-MS as a Screening Tool for Forensic Fire Debris Analysis

July 6, 2022

Author(s)

Briana Capistran, Edward Sisco

… compounds in both liquids were identified using the total ion chromatograms, relevant extracted ion profiles, and deconvolution methods. …

Dynamically Preferred State with Strong Electronic Fluctuations from Electrochemical Synthesis of Sodium Manganate

February 2, 2022

Author(s)

Xi Chen, Yichao Wang, Yiping Wang, Rebecca Dally, Kamila Wiaderek, Tianyu Qiao, Jue Liu, Enyuan Hu, Kenneth Burch, Jeffrey W. Lynn, Xin Li

… is a delicate method to precisely control the alkaline ion composition in alkaline transition metal oxides. Due to …

Detection of fuel-oxidizer explosives utilizing portable capillary electrophoresis with wipe- based sampling

June 20, 2020

Author(s)

Shannon T. Krauss, Thomas Forbes, Jeffrey A. Lawrence, John G. Gillen, Jennifer R. Verkouteren

… gas‐phase separation and detection instrumentation such as ion mobility spectrometry (IMS), an automated liquid …

Nanocomposite Electrolytes for Lithium Batteries with Reduced Flammability

March 21, 2018

Author(s)

Mauro Zammarano, Apostolos Enotiadis, Nikhil Fernandes, Natalie A. A. Becerra, Emmanuel P. Giannelis

We report a family of flame-retardant electrolytes for lithium batteries based on ionic nanocomposites. The nanocomposites are synthesized in one pot by dispersing SiO2 nanoparticles charge-balanced by both Li ions and mono-amino-terminated polyether (PEO

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