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open access

The Reaction Kinetics of Amino Radicals with Sulfur Dioxide

Description: Abstract: Application of the laser photolysis–laser-induced fluorescence method to the reaction NH2 + SO2 in argon bath gas yields pressure-dependent, third-order kinetics which may be summarized as 𝑘 = (1.49 ± 0.15) × 10^−31 (𝑇/298 K) − 0.83 cm^6 molecule^−2 s^−1 over 292 – 555 K, where the uncertainty is the 95% confidence interval and includes possible systematic errors.The quenching of vibrationally excited NH2 is consistent with a high-pressure limit for NH2 + SO2 of (1.62 ± 0.25) × 10^−11… more
Date: July 10, 2015
Creator: Gao, Yide; Glarborg, Peter & Marshall, Paul
open access

Bad Pyrmont Spa

Description: Photo depicts the Bad Pyrmont Spa in western Germany which is known for its therapeutic baths and vapor cave. The paragraph on the bottom of page 70 gives details about the photo and the spa.
Date: Winter 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
open access

20 Mule Team

Description: This photograph from the front cover of an issue of the Hexagon Journal displays the mock 20 mule team that stands outside of the Rio Tinto Borax Museum in Boron, California. The mule team depicts the original mode used to transport the chemical compound, borax, out of Death Valley between 1883 and 1888. A description of the photograph is shown on page 23 of the journal.
Date: Summer 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
open access

Rediscovery of the Elements: The Rare Earths - The Beginnings

Description: This article explores the rare earths, the chemically similar elements that occupy the f-block of the Periodic Table and the Group III chemical family. The articles shows the locations that certain rare earths were originally found. It also gives details on where the elements can be found currently, as well as major production areas. The cover of the Fall 2015 Hexagon journal (Vol. 106, Issue 3) features the Mountain Pass rare earth ore body in Southern California, which is mentioned in the ar… more
Date: Autumn 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
open access

Rediscovery of the Elements: The Rare Earths - The Confusing Years

Description: This article gives a timeline of research conducted on the rare earths, 17 elements found in the f-block and Group III chemical family of the Periodic Table. It covers discoveries made after the success of Swedish chemist, Carl Gustaf Mosander. The article describes the categorization of the rare earths that took place after Mosander's time, as well as separation techniques that developed.
Date: Winter 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.

User-Centered Design

Description: This NSF-funded workshop initiated a research trajectory that brings the fields of language archives and user-centered design (UCD) into dialogue, with the goal of improving users’ experiences with language archives and making them more accessible and useful to diverse user groups. The workshop documented perspectives of key stakeholder groups and generated initial conceptual frameworks to guide further research. This slide deck accompanied the presentation by Christina Wasson on user-centered … more
Date: February 20, 2016
Creator: Wasson, Christina

Language Archiving: Where We've Been and Where We're Going

Description: This NSF-funded workshop initiated a research trajectory that brings the fields of language archives and user-centered design (UCD) into dialogue, with the goal of improving users’ experiences with language archives and making them more accessible and useful to diverse user groups. The workshop documented perspectives of key stakeholder groups and generated initial conceptual frameworks to guide further research. This slide deck accompanied the presentation by Gary Holton on language archiving. more
Date: February 20, 2016
Creator: Holton, Gary

Stakeholder Groups

Description: This NSF-funded workshop initiated a research trajectory that brings the fields of language archives and user-centered design (UCD) into dialogue, with the goal of improving users’ experiences with language archives and making them more accessible and useful to diverse user groups. The workshop documented perspectives of key stakeholder groups and generated initial conceptual frameworks to guide further research. This slide deck accompanied all presentations by workshop participants on the per… more
Date: February 20, 2016
Creator: Roy, Loriene; Baldwin, Daryl; Alexander, Edward; Leonard, Wesley Y.; Shepard, Michael; Berez-Kroeker, Andrea et al.
open access

Comments Concerning Solvent Effects on Chemical Processes. Part 7. Quantitative Description of the Composition Dependence of the Solvent Polarity Measure ET(30) in Binary Aqueous-Organic Solvent Mixtures

Description: This article critically examines a two-step solvational model for mathematically describing the spectral properties of the DImroth-Reichardt betaine dye ET in binary aqueous-organic solvent mixures.
Date: November 7, 1994
Creator: Acree, William E. (William Eugene); Powell, Joyce R. & Tucker, Sheryl A. (Sheryl Ann)
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