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Search Publications

NIST Authors in Bold

Displaying 7926 - 7950 of 73741

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

July 1, 2020
Author(s)
John Butler, Hariharan Iyer, Richard 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

Role of alkali-metal cations in electronic structure and halide segregation of hybrid perovskites

July 1, 2020
Author(s)
Siyuan Zhang, Ming Chun Tang, Yuanyuan Fan, Ruipeng Li, Nhan V. Nguyen, Kui Zhao, Thomas D. Anthopoulos, Christina A. Hacker
Triple-cation hybrid perovskites with mixed-halide have become one of the most dominant composition due to superior photovoltaic performance and stability. In this study, we systematically investigate the incorporation of cesium (Cs+) and potassium (K+) at

Technology Development and Field Monitoring in nZEB

July 1, 2020
Author(s)
Vance (Wm.) Payne, Brian P. Dougherty
The International Energy Agency (IEA) Heat Pumping Technologies (HPT) Annex 49, "Design and Integration of Heat Pumps for Nearly Zero Energy Buildings," deals with the application of heat pumps as a core component of the HVAC system for nearly or net-zero

Anomalous accelerated negative-bias- instability (NBI) at low drain bias

June 30, 2020
Author(s)
Kin P. Cheung
We observed at very low drain bias an anomalous acceleration of Negative-bias-instability at room temperature, as if the channel temperature has been raised significantly. The channel width and channel length dependent of this acceleration suggest that in

Effects of laser-energy density and build orientation on the defect structure, microstructure and tensile properties of Inconel 718 parts manufactured with laser powder bed fusion

June 30, 2020
Author(s)
Dillon Watring, Jake Benzing, Nik Hrabe, Ashley Spear
This study investigates the processing-structure-property relationships of Inconel 718 manufactured by laser powder bed fusion. Three di erent build conditions were selected for the Inconel 718 specimens: 0 build orientation and 38 J/mm3, 0 build

Evaluation of Graded Levels of Soy Oil as a Fish Oil Replacement in High Soy Protein Feeds for Juvenile Red Drum, Sciaenops ocellatus

June 30, 2020
Author(s)
Tracey B. Schock, Aaron Watson, Michael P. Napolitano, John A. Bowden, Jason Frost, Justin Yost, Michael R. Denson
A 9-week feeding trial was conducted with juvenile red drum, Sciaenops ocellatus, to evaluate the use of soy oil as a fish oil replacement. Three primary protein sources (fishmeal - FM, soybean meal - SBM, and soy protein concentrate - SPC) were utilized

Evaluation of Thermal Optical Analysis (TOA) Using an Aqueous Binary Mixture

June 30, 2020
Author(s)
Courtney D. Grimes, Joseph Conny, Russell Dickerson
Thermal Optical Analysis (TOA), a commonly implemented technique used to measure the amount of particulate carbon in the atmosphere or deposited on a filter substrate, distinguishes organic carbon (OC) from elemental carbon (EC) through the monitoring of
Displaying 7926 - 7950 of 73741
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