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Displaying 1 - 25 of 468

Micro- and Nanoscale Surface Analysis of Late Iron Age Glass from Broborg, a Vitrified Swedish Hillfort

January 11, 2023
Author(s)
Jamie Weaver, Bethany Matthews, James Neeway, Lorena Nava Farias, Jose Marcial, Bruce Arey, Jennifer Soltis, LiBor Kovarik, Michael Schweiger, Nathan Canfield, Tamas Varga, Mark Bowden, John McCloy, Eva Hjarthner-Holdar, Rolf Sjoblom, Mia Englund, Erik Ogenhall, Edward Vicenzi, Claire Corkhill, Clare Thorpe, Russell Hand, David Peeler, Carolyn Pearce, Albert Kruger
Archaeological glasses with prolonged exposure to biogeochemical processes in the environment can be used to understand glass alteration, which is important for the safe disposal of vitrified nuclear waste. Samples of mafic and felsic glasses with

Life History, Contaminant and Histopathologic Assessment of Beluga Whales, Delphinapterus leucas, Harvested for Subsistence in Cook Inlet, Alaska, 1989-2005

November 16, 2022
Author(s)
Kathy Burek-Huntington, Kim Shelden, Kim Goetz, Barbara Mahoney, Dan Vos, Jessica L. Reiner, Jennifer Hoguet, Greg O'Corry-Crowe
Throughout the State of Alaska, ranging from the eastern Beaufort Sea to Bristol Bay, and within the boundaries of Cook Inlet, belugas are an important subsistence resource for Native communities. Cook Inlet belugas (CIBs, Delphinapterus leucas) are

Circular Economy in a High-Tech World

October 18, 2022
Author(s)
Kelsea Schumacher, Martin L. Green
The proliferation of electronics, batteries, and solar panels in recent decades has resulted in a substantial generation of end-of-life (EoL) "high-tech" products. Currently, these products follow a largely linear – extract, make, use, dispose – model, but

Effect of network connectivity on behavior of synthetic Broborg Hillfort glasses

September 2, 2022
Author(s)
Jose Marcial, Maria Cicconi, Carolyn Pearce, Jaroslav Klouzek, James Neeway, Richard Pokorny, Miroslava Vernerova, John McCloy, Emily Nienhuis, Rolf Sjoblom, Jamie Weaver, Russell Hand, Pavel Hrma, Albert Kruger
There is wide industrial interest in developing robust models of long-term (>100years) glass durability. Archeological glass analogs, glasses of similar composition, and alteration conditions to those being tested for durability can be used to evaluate and

Report on the DHS/NIST Workshop on Standards for an Enduring Capability in Wastewater Surveillance for Public Health (SWWS Workshop)

August 16, 2022
Author(s)
Nancy Lin, Stephanie Servetas, Scott Jackson, Katrice Lippa, Kirsten Parratt, Philip Mattson, Clare Beahn, Mia Mattioli, Sally Gutierrez, Michael Focazio, Ted Smith, Paul Storella, Sarah Wright
Wastewater surveillance is a promising approach to monitor biological and chemical contaminants on a community level in support of public health and safety decisions. Wastewater surveillance has recently been shown highly effective for the early detection

Towards a North Pacific Ocean long-term monitoring program for plastic pollution: A review and recommendations for plastic ingestion bioindicators

August 6, 2022
Author(s)
Matthew Savoca, Susanne Kuhn, Chengjun Sun, Stephanie Avery-Gomm, Anela Choy, Sarah Dudas, Sanghee Hong, David Hyrenbach, Tsung-Hsien Li, Connie Ka-yan Ng, Jennifer Provencher, Jennifer Lynch
Marine debris is now a ubiquitous component of the Anthropocene global ocean. Plastic ingestion by marine wildlife was first reported in the 1960s and since that time, roughly one thousand marine species have been reported to consume this debris. This

IG3IS Urban Greenhouse Gas Emission Observation and Monitoring Best Research Practices

August 1, 2022
Author(s)
Jocelyn Turnbull, Philip DeCola, Kimberly Mueller, Felix Vogel, Anna Karion, Israel Lopez Coto, James Whetstone
The Integrated Global Greenhouse Gas Information System (IG3IS) aims to coordinate an integrated global greenhouse gas information system, linking inventory and process model-based information with atmospheric observations and atmospheric modelling, to

Fracture Toughness Tests at 77 K and 4 K on 316L Stainless Steel Welded Plates

July 29, 2022
Author(s)
Jake Benzing, Nicholas Derimow, Enrico Lucon, Dash Weeks
In the framework of a collaborative project between ASME, NASA, and NIST, quasi-static fracture toughness tests have been performed at liquid nitrogen temperature (77 K, or -196 °C) and liquid helium temperature (4 K, or -269 °C) on weld specimens

Technical Framework for High Quality New Approach Methodologies (NAMs)

July 15, 2022
Author(s)
Elijah Petersen, John T. Elliott, John Gordon, Nicole Kleinstreuer, Emily Reinke, Matthias Roesslein, Blaza Toman
New approach methodologies (NAMs) are in vitro, in chemico, and computational approaches that can potentially be used to reduce animal testing. For NAMs that require laboratory experiments, it is critical that they provide consistent and reliable results

Properties of Refrigerants

June 22, 2022
Author(s)
Marcia L. Huber, Mark O. McLinden
This table gives physical properties, safe exposure limits, GWP and ODP for compounds that have been used as working fluids in traditional refrigeration systems or are under consideration as replacements in newer systems. Some are also used as solvents

Design and Demonstration of a Low Field Magnetic Resonance Imaging Rhizotron for In-Field Imaging of Energy Sorghum Roots

March 21, 2022
Author(s)
George Bagnall, Stephen Altobelli, Mark Conradi, Hilary Fabich, Eiichi Fukushima, Neha Koonjoo, Dean Kuethe, William Rooney, Karl Stupic, Bragi Sveinsson, Brock Weers, NITHYA RAJAN, Matthew Rosen, Cristine Morgan
Advances in plant root phenotyping will play a crucial role in the development of modern crop varieties for fostering sustainable agriculture. Root phenotyping provides critical information to plant breeders for developing varieties with improved drought

Working fluid selection for heat pumps in solar district heating systems

March 10, 2022
Author(s)
Shengqing Xiao, Dimitri Nefodov, Mark O. McLinden, Markus Richter, Thorsten Urbaneck
In the context of the global energy transition, solar energy holds a promising potential as an energy source for a sustainable heat supply. Solar thermal collector in combination with heat pump technology utilizing electricity from renewable sources, such

New International Formulation for the Thermal Conductivity of Heavy Water

March 9, 2022
Author(s)
Marcia L. Huber, Richard A. Perkins, Marc Assael, Stella Monogenidou, Robert Hellmann, Jan Sengers
The International Association for the Properties of Water and Steam (IAPWS) has adopted a new formulation for the thermodynamic properties of heavy water. This manuscript describes the development of a new correlation for the thermal conductivity of heavy

Temporal tends of persistent organic pollutants in Sarasota Bay common bottlenose dolphins (Tursiops truncatus)

February 17, 2022
Author(s)
John Kucklick, Ashley Boggs-Russell, Kevin Huncik, Amanda Moors, Elizabeth Davis, Gina Ylitalo, Mary McConnell, Christina Makris, Randall Wells
Legacy persistent organic pollutants (POPs) were measured in blubber samples collected from 196 common bottlenose dolphins (Tursiops truncatus) during 2000 to 2016 in the Sarasota Bay, Florida, ecosystem. Legacy POPs included polychlorinated biphenyl

Silicone tube humidity generator

February 16, 2022
Author(s)
Robert F. Berg, Nicola Chiodo, Eric Georgin
We describe the model and construction of a two-flow (or divided-flow) humidity generator, developed at LNE-CNAM, that uses mass flow controllers to mix a stream of dry gas with a stream of humid gas saturated at 28 °C. It can generate a wide range of
Displaying 1 - 25 of 468