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Displaying 6301 - 6325 of 74371

Comparison of Chemometric Problems in Food Analysis Using Non-Linear Methods

July 2, 2020
Author(s)
Werickson Fortunato de Carvalho Rocha, Charles Prado, Niksa Blonder
Food analysis is a challenging analytical problem, often addressed using sophisticated laboratory methods that produce large data sets. Linear and non-linear multivariate methods can be used to process these types of datasets and to answer questions such

Crystal Chemistry and Phase Equilibria of the CaO- 1/2Ho2O3-CoOz System at 885 degC in Air

July 2, 2020
Author(s)
Winnie K. Wong-Ng, William J. Laws, Qingzhen Huang, Jie Hou, James A. Kaduk, Saul H. Lapidus, Lynn Ribaud
The phase diagram of the CaO-½Ho2O3-CoOz system was determined at 885 ºC in air. This diagram offers detailed compatibility relationships in the ternary oxide system that are essential for processing and for the understanding of thermoelectric properties

Record Fast Polarization Switching Observed in Ferroelectric Hafnium Oxide Crossbar Arrays

July 2, 2020
Author(s)
Pragya R. Shrestha, xiao Lyu, Mengwei Si, Jason P. Campbell, Kin P. Cheung, Peide Ye
The polarization switching speed of ferroelectric (FE) hafnium zirconium oxide (HZO) is studied with the device size down to sub-μm in lateral dimension. Ultrafast measurement of transient switching current on metal-ferroelectric-metal (MFM) device with a

The (R)Evolution of Refrigerants

July 2, 2020
Author(s)
Mark O. McLinden, Marcia L. Huber
As we enter the "fourth generation" of refrigerants, we consider the evolution of refrigerant molecules, the ever-changing constraints and regulations that have driven the need to consider new molecules, and the advancements in the tools and property

Comparison of the multi-national SIM time scale to UTC and UTCr

July 1, 2020
Author(s)
J. M. Lopez, Michael A. Lombardi, E. de Carlos, N. Munoz, C. Ortiz, M. Gertsvolf, R. de Carvalho, R. Solis
The Sistema Interamericano de Metrologia (SIM) is one of the world's five major Regional Metrology Organizations (RMO's) recognized by the International Committee for Weights and Measures (CIPM). With the goal of allowing SIM National Metrology Institutes

Detection of Dense, Overlapping, Geometric Objects

July 1, 2020
Author(s)
Adele P. Peskin, Boris Wilthan, Michael P. Majurski
Using a unique data collection, we are able to study the detection of dense geometric objects in image data where object density, clarity, and size vary. The data is a large set of black and white images of scatterplots, taken from journals reporting

DNA mixture interpretation principles: insights from the NIST scientific foundation review

July 1, 2020
Author(s)
John Butler, Hariharan K. Iyer, Richard A. Press, Melissa Taylor, Peter Vallone, Sheila Willis
DNA mixture interpretation has become more challenging in recent years due to several factors including submission of more touch evidence samples to aid investigations and generation of more sensitive DNA test results with new STR typing kits. This

Low-Field Magnetic Resonance Imaging of Roots in Intact Clayey and Silty Soils

July 1, 2020
Author(s)
George Bagnall, Cristine` Morgan, Matthew Rosen, Mark Conradi, Stephen Altobelli, Dean Kuethe, Haly Neely, Neha Koonjoo, Bo Zhu, Karl Stupic, John Mullet, Brock Weers, Eiichi Fukushima, William Rooney
The development of a robust method to non-invasively visualize root morphology in natural soils has been hampered by the opaque, physical, and structural properties of soils. In this work we describe a novel technology, low field magnetic resonance imaging

On the precipitation kinetics, microstructure evolution and mechanical behavior of a developed Al- Mn-Sc alloy fabricated by selective laser melting

July 1, 2020
Author(s)
Qingbo Jia, Fan Zhang, Paul Rometsch, Jitendra Mata, Jingwei Li, Matthew Weyland, Laure Bourgeois, Manling Sui, Xinhua Wu
The dynamic metallurgical characteristics of the selective laser melting (SLM) process offer fabricated materials with non-equilibrium microstructures compared to their cast and wrought counterparts. To date, few studies on the precipitation kinetics of
Displaying 6301 - 6325 of 74371