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Journals

Molecular Sieving of Ethylene from Ethane using a Rigid Metal-Organic Framework

November 26, 2018

Author(s)

Rui-Biao Lin, Libo Li, Hao-Long Zhou, Hui Wu, Chaohui He, Shun Li, Rajamani Krishna, Jinping Li, Wei Zhou, Banglin Chen

There are great challenges in developing efficient adsorbents to replace currently used and energy-intensive cryogenic distillation processes for olefin...

Validation of Single Particle ICP-MS for Routine Measurements of Nanoparticle Size and Number Size Distribution

November 25, 2018

Author(s)

Antonio R. Montoro Bustos, Premsagar P. Kavuri, Antonio M. Possolo, Natalia Farkas, Andras Vladar, Karen E. Murphy, Michael R. Winchester

Single particle inductively coupled plasma-mass spectrometry (spICP-MS) is an emerging technique capable of measuring nanoparticle size and number concentration...

Determination of test cycle sensitivity coefficients for the Rockwell HR45N hardness scale

November 23, 2018

Author(s)

Samuel R. Low III, Renato R. Machado

This article describes work carried out to determine test cycle sensitivity coefficients for the Rockwell HR45N hardness scale. Sensitivity coefficients were...

Technique to reduce bending issues in Rockwell B scale hardness reference blocks: preliminary results

November 23, 2018

Author(s)

Samuel R. Low III, Renato R. Machado

This paper describes a new design for HRBW scale reference blocks, that has the potential to greatly reduce the bending of brass blocks and thus improve short...

Determining surface chemical composition of silver nanoparticles during sulfidation by monitoring the ligand shell

November 23, 2018

Author(s)

John M. Pettibone, Justin M. Gorham, Jingyu Liu

Evaluating the surface and core compositions of transforming nanoparticles (NP) represents a significant measurement challenge but is necessary for predicting...

Recommended electron-impact excitation and ionization cross sections for Be I

November 23, 2018

Author(s)

FNU Dipti, Tapasi Das, klaus Bartschat, I Bray, D Fursa, O Zatsarinny, C Ballance, H-K Chung, Yuri Ralchenko

Analytic fits to the recommended electron-impact excitation and ionization cross sections for Be I are presented. The lowest 19 terms of configurations 2snl (n...

Approximating vibronic spectroscopy with imperfect quantum optics

November 23, 2018

Author(s)

W.R. Clements, Jelmer Renema, Andreas Eckstein, Antonio A. Valido, Adriana Lita, Thomas Gerrits, Sae Woo Nam, Steven Kolthammer, Joonsuk Huh

We study the impact of experimental imperfections on a recently proposed protocol for performing quantum simulations of vibronic spectroscopy. Specifically, we...

Thermodynamic analysis of the topologically close packed ? phase in the Co-Cr system

November 22, 2018

Author(s)

Peisheng Wang, Matthew C. Peters, Ursula R. Kattner, Kamal Choudhary, Gregory B. Olson

Density functional theory (DFT) calculations show that a thermodynamic description considering the magnetic contribution to the total energy for the end-members...

Quantum Process Fidelity Bounds from Sets of Input States

November 21, 2018

Author(s)

Emanuel H. Knill, Karl H. Mayer

We investigate the problem of bounding the quantum process fidelity given bounds on the fidelities between target states and the action of a process on a set of...

An energy-resolved atomic scanning probe

November 21, 2018

Author(s)

Daniel S. Gruss, Chih-Chun Chien, Julio T. Barreiro, Massimiliano Di Ventra, Michael P. Zwolak

The density of states is a concept that is ubiquitous in classical and quantum physics, since it quantifies the energy distribution of states available in a...

Detection of Brodifacoum and other Rodenticides in Drug Mixtures using Thermal Desorption Direct Analysis in Real Time Mass Spectrometry (TD-DART-MS)

November 21, 2018

Author(s)

Liz Robinson, Edward Sisco

In recent months, there has been increased reporting of seized drug and toxicology cases containing rodenticides, or superwarfarins, the active ingredient in...

Utilizing confocal laser scanning microscopy for rapid optical characterization of graphene

November 20, 2018

Author(s)

Vishal Panchal, Yanfei Yang, Guangjun Cheng, Jiuning Hu, Mattias Kruskopf, Chieh-I Liu, Albert Rigosi, Christos Melios, Angela R. Hight Walker, David B. Newell, Olga Kazakova, Randolph Elmquist

Confocal laser scanning microscopy (CLSM) is a non-destructive, highly-efficient optical characterization method for large-area analysis of graphene on...

Observation of bound state self-interaction in a nano-eV atom collider

November 20, 2018

Author(s)

R Thomas, M. Chilcott, A. Deb, Eite Tiesinga, N. Kjaergaard

Quantum mechanical scattering resonances for colliding particles occur when a continuum scattering state couples to a discrete bound state between them. The...

Acoustic Phonon Lifetimes Limit Thermal Transport in Methylammonium Lead Iodide

November 20, 2018

Author(s)

Aryeh Gold-Parker, Peter M. Gehring, Jonathan M. Skelton, Ian C. Smith, Daniel E. Parshall, Jarvist M. Frost, Hemamala I. Karunadasa, Aron Walsh, Michael F. Toney

Assessment of Martensitic Transformation Paths Based on Transformation Potential Calculations

November 19, 2018

Author(s)

Adam A. Creuziger, Whitney Poling, Thomas H. Gnaupel-Herold

Transformation potentials for two different martensitic transformation paths are calculated and compared to experimentally measured austenite textures of an SAE...

Categorical Models for Process Planning

November 19, 2018

Author(s)

Spencer J. Breiner, Eswaran Subrahmanian, Albert W. Jones

Process plans provide a structure for 1) identifying the tasks involved in a given process, 2) the resources needed to accomplish them, and 3) a variety of...

AC stark shifts of dark resonances probed with Ramsey spectroscopy

November 16, 2018

Author(s)

James Wesley Y. Pollock, V. I. Yudin, Moshe Shuker, M. Y. Basalaev, A. V. Taichenachev, Xiaochi Liu, John E. Kitching, Elizabeth A. Donley

The off-resonant AC Stark shift for coherent population trapping (CPT) resonances probed with Ramsey spectroscopy is investigated experimentally and...

Spin relaxation of a donor electron coupled to interface states

November 16, 2018

Author(s)

Peihao Huang, Garnett W. Bryant

An electron spin qubit in a silicon donor atom is a promising candidate for quantum information processing because of its long coherence time. To be sensed with...

Tuning the Magnetic Ground State of Ce_1-xYb_xRhIn₅ by Yb Valence Fluctuations

November 16, 2018

Author(s)

S. Jang, N. Pouse, T. Keiber, B. D. White, S. M. Disseler, Jeffrey W. Lynn, J. C. Collini, M. Janoschek, F. Bridges, M. B. Maple

We characterize the properties of Ce 1-xYb xRhIn 5 single crystals with 0 less than or equal to} x less than or equal to} 1 using measurements of powder x-ray...

Atom-by-atom construction of a cyclic artificial molecule in silicon

November 15, 2018

Author(s)

Jonathan E. Wyrick, Xiqiao Wang, Pradeep N. Namboodiri, Scott W. Schmucker, Ranjit V. Kashid, Richard M. Silver

Progress and Challenges in Quantifying and Evaluating Building Sustainability

November 15, 2018

Author(s)

Joshua D. Kneifel, Eric G. O'Rear

Considerations for uranium isotope ratio analysis by atmospheric pressure ionization mass spectrometry

November 14, 2018

Author(s)

Thomas P. Forbes, Christopher W. Szakal

The accurate measurement of uranium isotope ratios from trace samples lies at the foundation of achieving nuclear non-proliferation. These challenging...

Dynamic Properties of Different Liquid States in Systems with Competing Interactions Studied with Lysozyme Solutions

November 14, 2018

Author(s)

P. D. Godfrin, P. Falus, L. Porcar, K. Hong, Steven Hudson, N. J. Wagner, Yun Liu

Recent studies of colloidal systems with a short-range attraction and long-range repulsion (SALR) have been demonstrated to have a generalized phase diagram...

Comparing sulfidation kinetics of silver nanoparticles in simulated media using direct and indirect measurement methods

November 14, 2018

Author(s)

Jingyu Liu, Fan Zhang, Andrew J. Allen, Aaron Johnston-Peck, John M. Pettibone

The processing of nanomaterials in natural and engineered systems, which controls their fate and performance, is determined by the relative rates of the...

Josephson Arbitrary Waveform Synthesizer as a Reference Standard for the Measurement of the Phase of Harmonics in Distorted Waveforms

November 14, 2018

Author(s)

Dimitrios Georgakopoulos, Ilya F. Budovsky, Samuel Benz, G. Gubler

We have used the Josephson arbitrary waveform synthesizer (JAWS) to provide traceability for the phase of the harmonics, relative to its fundamental, of a...

Nearshore sea surface macro marine debris in Maui County, Hawaii: distribution, drivers, and polymer composition

November 14, 2018

Author(s)

Jens Currie, Stephanie Stack, Kayla C. Brignac, Jennifer Lynch

Maui County, a group of four islands in Hawaii, lies within a protected marine sanctuary where recreation, tourism, and marine species coexist. Located within...

Topological Spin Excitations in Honeycomb Ferromagnet CrI₃

November 14, 2018

Author(s)

Lebing Chen, Jae-Ho Chung, Bin Gao, Tong Chen, Matthew B. Stone, Alexander I. Kolesnikov, Qingzhen Huang, Pengcheng Dai

Effects of Nitrogen on the Interface Density of States Distribution in 4H-SiC Metal Oxide Semiconductor Field Effect Transistors: Super-hyperfine Interactions and Near Interface Silicon Vacancy Energy Levels

November 13, 2018

Author(s)

Mark Anders, Patrick M. Lenahan, Arthur H. Edwards, Peter A. Schultz, Renee M. Van Ginhoven

The performance of SiC-based metal-oxide-semiconductor field-effect transistors (MOSFETs) is greatly enhanced by a post oxidation anneal in NO. These anneals...

Towards Standards-Based Generation of Reusable Life Cycle Inventory Data Models for Manufacturing Processes

November 13, 2018

Author(s)

Michael P. Brundage, David J. Lechevalier, Katherine C. Morris

The production stage of a product's life cycle can significantly contribute to its overall environmental impact. Estimates of environmental impact for a product...

Hierarchically Patterned Elastomeric and Thermoplastic Polymer Films through Nanoimprinting and Ultraviolet Light Exposure

November 13, 2018

Author(s)

Jack F. Douglas, Ying Chen, Manish Kulkarni, Allan Marshall, Alamgir Karim, ZiLu Wang, Xiaoteng Wang, Abdullah Al-Enizi, Ahmed Elzatahry, Andrey V. Dobrynin

We develop a simple and generally applicable method to fabricate hierarchical interfacial patterns in elastomer and thermoplastic polymer films through a...

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