Climate Metrics for C1–C4 Hydrofluorocarbons (HFCs) (open access)

Climate Metrics for C1–C4 Hydrofluorocarbons (HFCs)

This article looks at hydrofluorocarbons (HFCs) which are potent greenhouse gases that are potential substitutes for ozone depleting substances. The Kigali amendment lists 17 HFCs that are currently in commercial use to be regulated under the Montreal Protocol. Future commercial applications may explore the use of other HFCs, most of which currently lack an evaluation of their climate metrics. In this work, atmospheric lifetimes, radiative efficiencies (REs), global warming potentials (GWPs), and global temperature change potentials (GTPs) for all saturated HFCs with fewer than 5 carbon atoms are estimated to help guide future usage and policy decisions.
Date: May 11, 2020
Creator: Burkholder, James B. (James Bart), 1954-; Marshall, Paul; Bera, Partha P.; Francisco, Joseph S. & Lee, Timothy J.
System: The UNT Digital Library
Convolutional Neural Network for Extracting 3D Point Clouds of Fibrous Web From Multi-Focus Images (open access)

Convolutional Neural Network for Extracting 3D Point Clouds of Fibrous Web From Multi-Focus Images

Article presents a new method for extracting 3D point clouds from multi-focus images of a fibrous web acquired on an optical microscope to analyze microscopic structures of a fibrous web.
Date: May 11, 2020
Creator: Hou, Jue; Ouyang, Wenbin; Xu, Bugao & Wang, Rongwu
System: The UNT Digital Library
International Journal of Lightweight Materials and Manufacture (open access)

International Journal of Lightweight Materials and Manufacture

This article employs a recently introduced magnesium-samarium oxide (Mg–Sm₂O₃) nanocomposite, with different volume fractions of nanosize Sm₂O₃ particles as reinforcement, to study ambient temperature rate-dependent plastic response of the material.
Date: May 11, 2020
Creator: Hasannaeimi, Vahid; Mukherjee, Sundeep; Haghshenas, M.; Song, X. & Gupta, D.
System: The UNT Digital Library