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Comparison of Effectiveness of Sub-Slab Ventilation Systems for Indoor Radon Mitigation: A Numerical Study; Comparaison a L`Aide D`Un Outil Numerique DE L`Efficacite Des Systemes DE Ventilation Active DU SOL Limitant La Penetration DU Radon Dans L`Habitat

Description: The functioning of an active sub-slab ventilation system (SVS) has been studied successfully with the help of a previously evaluated numerical model. The parameters explored are the permeability of the sub-slab and the gravel placed beneath it, the amplitude of applied pressure at the installation point of the system and the functioning method: depressurization or pressurization. The mechanisms contributing to the success of the two systems are identified. This numerical study shows that the pr… more
Date: April 1, 1992
Creator: Bonnefous, Y. C.; Gadgil, A. J. & Allard, F.
Partner: UNT Libraries Government Documents Department
open access

On Morley's miracle theorem

Description: Article on Morley's miracle theorem. The authors use work by A. Connes to explore possible generalizations of Morley's trisector theorem to triangles in arbitrary value fields.
Date: 2004
Creator: Anghel, Nicolae
Partner: UNT College of Arts and Sciences
open access

Teaching and Learning with Technology During the COVID-19 Pandemic: Highlighting the Need for Micro-Meso-Macro Alignments

Description: This article covers the challenges brought about for teachers and learners from transitioning to online education due to the COVID-19 pandemic. The authors reflect on these challenges based on discussions at EDUsummIT2019 in Quebec about the theme “Learners and learning contexts: New alignments for the digital age." Informed by theoretical conceptualization and empirical evidence the authors identify micro-meso-macro alignments that need to be in place to move education into the digital age: al… more
Date: September 20, 2021
Creator: Voogt, Joke & Knezek, Gerald
Partner: UNT College of Information
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