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The Reaction Kinetics of Amino Radicals with Sulfur Dioxide
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 cm^3 molecule^−1 s^−1 over the temperature range 295–505 K, where again the 95% confidence interval is shown. Abinitio analysis yields a H2N – SO2 dissociation enthalpy of 73.5 kJmol−1, and comparison with RRKM theory and the exponential down model for energy transfer yields ⟨Δ𝐸⟩down = 350 cm^−1 for Ar at room temperature.
Date:
April 29, 2015
Creator:
Gao, Yide; Glarborg, Peter & Marshall, Paul
Object Type:
Text
System:
The UNT Digital Library
Examining Scientific Literacy through New Media
Article evaluates the impact of new media on scientific literacy. Content analysis with a coding scheme was performed on 42 filtered websites and 20 microblogs to analyze the role of new media in disseminating scientific knowledge. The results showed that the quality of science-oriented websites was higher than that of microblogs. Suggestions about how to improve the quality of science-oriented new media and how to develop students’ scientific literacy through new media are also discussed.
Date:
July 10, 2019
Creator:
Gu, Xiaoqing; Wang, Chunli & Lin, Lin
Object Type:
Article
System:
The UNT Digital Library
Exhibits @ UNT. An Implementation Proposal
Report for the University of North Texas (UNT) Libraries proposing new methods and ideas for displaying online exhibits.
Date:
July 10, 2013
Creator:
Hicks, William
Object Type:
Report
System:
The UNT Digital Library
Localization of polyhydroxybutyrate in sugarcane using Fourier-transform infrared microspectroscopy and multivariate imaging
This article demonstrates the power of infrared microspectroscopy to rapidly image plan sections to provide a snapshot of the chemical composition of the cell.
Date:
July 10, 2015
Creator:
Lupoi, Jason S.; Smith-Mortiz, Andreia; Singh, Seema; McQualter, Richard B.; Scheller, Henrik V.; Simmons, Blake A. et al.
Object Type:
Article
System:
The UNT Digital Library
Solving the (n² - 1)-Puzzle with 8/3 n³ Expected Moves
In this article, it is shown that the greedy algorithm for the (n² - 1)-puzzle makes 8/3 + O(n²) expected moves. This analysis is verified experimentally on 10,000 random instances each of the (n² - 1)-puzzle for 4 ≤ n ≤ 200.
Date:
July 10, 2015
Creator:
Parberry, Ian
Object Type:
Article
System:
The UNT Digital Library
Quantification of fairness bias in relation to decisions using a relativistic fairness-equity model
Article discussing the quantification of fairness bias in relation to decisions using a relativistic fairness equity-model.
Date:
July 10, 2014
Creator:
Tam, Nicoladie D.
Object Type:
Article
System:
The UNT Digital Library
Quantification of fairness perception by including other-regarding concerns using a relativistic fairness-equity model
Article discussing the quantification of fairness perception by including other-regarding concerns using a relativistic fairness-equity model.
Date:
July 10, 2014
Creator:
Tam, Nicoladie D.
Object Type:
Article
System:
The UNT Digital Library
Developmental Transcriptomic Analyses for Mechanistic Insights Into Critical Pathways Involved in Embryogenesis of Pelagic Mahi-Mahi (Coryphaena Hippurus)
This article characterizes the developmental transcriptome of mahi-mahi by means of high throughput sequencing at three critical developmental stages.
Date:
July 10, 2017
Creator:
Xu, Elvis Genbo; Mager, Edward M.; Grosell, Martin; Stieglitz, John D.; Hazard, E. Starr; Hardiman, Gary et al.
Object Type:
Article
System:
The UNT Digital Library