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Displaying 4626 - 4650 of 74219

High-throughput bend-strengths of ultra-small polysilicon MEMS components

May 17, 2021
Author(s)
Robert Cook, Brad Boyce, Lawrence Henry Friedman, Frank DelRio
The strength distribution of polysilicon bend specimens, approximately 10 um in size, is measured using a high-throughput microelectromechanical system fabrication and testing method. The distribution is predicted from reference tests on tensile specimens

SoK: How (not) to Design and Implement Post-Quantum Cryptography

May 17, 2021
Author(s)
James Howe, Thomas Prest, Daniel Apon
Post-quantum cryptography has known a Cambrian Explosion in the last decade. What started as a very theoretical and mathematical area has now evolved into a sprawling research field, complete with side-channel resistant embedded implementations, large

Vitamin D Standardization Program (VDSP) intralaboratory study for the assessment of 25-hydroxyvitamin D assay variability and bias

May 17, 2021
Author(s)
Johanna Camara, Stephen Wise, Christopher T. Sempos, Pierre Lukas, Caroline LeGoff, Stephanie Peeters, Carolyn Burdette, Federica Nalin, Grace Hahm, Ramon Durazo-Arvizu, Adam J. Kuszak, Joyce M. Merkel, E. Cavalier
An intralaborabory comparison study to assess the performance of assays for the determination of serum total 25-hydroxyvitamin D [25(OH)D] was conducted in 2017 as part of the Vitamin D Standardization Program (VDSP). The intralaboratory study consisted of

Edge channels of broken-symmetry quantum Hall states in graphene visualized by atomic force microscopy

May 14, 2021
Author(s)
Joseph A. Stroscio, Sungmin Kim, Johannes Schwenk, Daniel T. Walkup, Yihang Zeng, Fereshte Ghahari, Son T. Le, Marlou R. Slot, Julian Berwanger, Steven R. Blankenship, Kenji Watanabe, Takashi Taniguchi, Franz Giessibl, Nikolai Zhitenev, Cory Dean
The quantum Hall (QH) effect, a topologically non-trivial quantum phase, expanded and brought into focus the concept of topological order in physics. The topologically protected quantum Hall edge states are of crucial importance to the QH effect but have

Magnetic Ordering in the Ising Antiferromagnetic Pyrochlore Nd 2 ScNbO 7

May 14, 2021
Author(s)
C. Mauws, N. Hiebert, M. Rutherford, H. D. Zhou, Q. Huang, M. B. Stone, Nicholas Butch, Y. Su, E. S. Choi, Z. Yamani, C. R. Wiebe
The question of structural disorder and its effects on magnetism is relevant to a number of spin liquid candidate materials. Although commonly thought of as a route to spin glass behavior, here we describe a system in which the structural disorder destroys

Deconstructing UML, Part 1: Modeling Classes with Categories

May 13, 2021
Author(s)
Sarala Padi, Spencer J. Breiner, Eswaran Subrahmanian, Ram D. Sriram
In this paper we analyze elements of the Unified Modeling Language (UML), specifically the class diagram, and propose an simplified alternative language based on a branch of mathematics called category theory (CT). We argue that modeling in CT provides a

Environmental Source Tracking of Per- and Polyfluoroalkyl Substances within a Forensic Context: Current and Future Techniques

May 13, 2021
Author(s)
Alix Rodowa, Joseph A. Charbonnet, Jennifer L. Guelfo, Jennifer A. Field, Gerrad D. Jones, Christopher P. Higgins, Damian E. Helbling, Erika F. Houtz
The source tracking of per- and polyfluoroalkyl substances (PFASs) is a new and increasingly important field within environmental forensics. We define PFAS source tracking as the accurate characterization and differentiation of multiple sources

Multiple-camera defocus imaging of ultracold atomic gases

May 13, 2021
Author(s)
Ian Spielman, Francisco Salces Carcoba, Yuchen Yue, Seiji Sugawa, Abigail Perry
In cold atom experiments, each image of light refracted and absorbed by an atomic ensemble carries a remarkable amount of information. Numerous imaging techniques including absorption, fluorescence, and phase-contrast are commonly used. Other techniques

Quantum amplification of boson-mediated interactions

May 13, 2021
Author(s)
Shaun C. Burd, Raghavendra Srinivas, Hannah M. Knaack, Wenchao Ge, Andrew C. Wilson, David J. Wineland, Dietrich Leibfried, John J. Bollinger, David T. Allcock, Daniel Slichter
Strong and precisely controlled interactions between quantum objects are essential for quantum information processing\citeSackett2000,Majer2007}, simulation\citeBritton2012}, and sensing\citeHosten2016a,Cox2016}, and for the formation of exotic quantum

Species and population specific gene expression in blood transcriptomes of marine turtles

May 13, 2021
Author(s)
Shreya M. Banerjee, Jamie A. Stoll, Camryn D. Allen, Jennifer Lynch, Heather Harris, Lauren Kenyon, Eleanor Sterling, Eugenia Naro-Maciel, Kate McFadden, Margaret Lamont, James Benge, Jeffrey A. Seminoff, Scott Benson, Rebecca L. Lewison, Tomoharu Eguchi, T. T. Jones, Peter Dutton, George H. Balazs, Lisa M. Komoroske
Background Transcriptomic data has demonstrated utility to advance the study of physiological diversity and organisms' responses to environmental stressors. However, a lack of genomic resources and challenges associated with collecting high-quality RNA can

Dynamics studies of polarization switching in ferroelectric hafnium zirconium oxide

May 12, 2021
Author(s)
X. Lyu, M. Si, Pragya Shrestha, Kin (Charles) Cheung, P. D. Ye
In this paper, we review the ultrafast direct measurement on the transient ferroelectric polarization switching in hafnium zirconium oxide with crossbar metal-insulator-metal (MIM) structures including materials development, device fabrication, structure

Thermochemical behavior of Chlorella sp. and Chlamydomonas reinhardtii algae: Comparison of laser-driven calorimetry with thermogravimetric analysis

May 12, 2021
Author(s)
Cary Presser, Ofra Paz Tal, Tsion Ohaion-Raz, Ana Lerner, Avihai Danon, Barak Dabush, Hadar Dubkin, Ashot Nazarian
A major focus of algal biofuel research is on maximizing the formation of the energy-containing compounds (i.e., carbohydrates, proteins, fatty acids, and lipids) during algal growth. Measurements were carried out to investigate the thermochemical

Additives for Superconformal Gold Feature Filling

May 11, 2021
Author(s)
Daniel Josell, Thomas P. Moffat
An overview of the effect of additives on Au electrodeposition from Na3Au(SO3)2 based electrolytes is presented with an emphasis on filling of fully metallized recessed surface features such as trenches and vias. The impact of heavy metals additives Tl+

An Optical Investigation of the Heavy Fermion Normal State in Superconducting UTe 2

May 11, 2021
Author(s)
Sirak Mekonen, Chang-Jong Kang, Dipanjan Chaudhuri, David Barbalas, Sheng Ran, Gabriel Kotliar, Nicholas Butch, N. Armitage
The recently discovered superconductor, UTe 2, has attracted immense scientific interest due to the experimental observations that suggest odd-parity superconductivity. It is believed that the material becomes a heavy-fermion metal at low temperatures
Displaying 4626 - 4650 of 74219