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10 results on '"Masri, Dina"'

1. The Effect of Language on the Coherence of Children's Conceptions of Force

Author

Masri, Dina B. and Amin, Tamer G.

Abstract

Background: The coherence of learners' pre-instruction conceptions has been debated for some time. Studies on conceptions of force, specifically, have produced very different results in different contexts around the world. In this study, an integrative theoretical framework linking semantic differences across languages to concept learning in childhood is proposed, motivating the hypothesis that language is a population variable that impacts the coherence of young learners' conceptions of force. Method: This study uses the same structured interview developed in a previous study by Ioannides and Vosniadoue but in a new context--the Kingdom of Saudi Arabia--with three groups of elementary school children (7-12 years of age; n = 185): monolingual in Arabic; monolingual in English; and bilingual in Arabic and English. Findings: The results support the hypothesis that language impacts the coherence of children's conceptions of force with Arabic monolinguals exhibiting greater coherence than English monolinguals, and bilingual children exhibiting intermediate coherence. Contribution: This paper provides evidence for the effect of semantic differences across languages and the phenomenon of lexical polysemy on the coherence of children's initial conceptions of force. The relationship between the integrative theoretical framework proposed and other theories of conceptual change and its novel pedagogical implications are discussed.

Published
2023
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3. Soil Property Prediction: An Extreme Learning Machine Approach

Author

Masri, Dina, Woon, Wei Lee, Aung, Zeyar, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Arik, Sabri, editor, Huang, Tingwen, editor, Lai, Weng Kin, editor, and Liu, Qingshan, editor

Published
2015
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6. Validation of UWG and ENVI-met models in an Abu Dhabi District, based on site measurements

Author

Massachusetts Institute of Technology. Department of Architecture, Bande, Lindita, Afshari, Afshin, Al Masri, Dina, Jha, Mukesh, Norford, Leslie Keith, Tsoupos, Alexandros, Marpu, Prashanth, Pasha, Yosha, Armstrong, Peter, Massachusetts Institute of Technology. Department of Architecture, Bande, Lindita, Afshari, Afshin, Al Masri, Dina, Jha, Mukesh, Norford, Leslie Keith, Tsoupos, Alexandros, Marpu, Prashanth, Pasha, Yosha, and Armstrong, Peter

Abstract

The city of Abu Dhabi is growing every year in population, urban extent and energy demand. This research focuses on the application of two simulation programs to estimate changes in urban climate associated with continued development in Abu Dhabi: The Urban Weather Generator (UWG) and ENVI-met. Simulation with these two software packages are validated with the site data measured in downtown Abu Dhabi. A comparison analysis (in the different seasons) between the rural data, the simulation output, and the site measurements shows the variations of the UHI in this Middle Eastern city and the potential of the validated tools. The main aims of this study are: (a) to make a seasonal validation of the UWG for the city of Abu Dhabi (referring to urban-rural available data). The tool was previously validated for a year (no seasonal division) for Abu Dhabi, Toulouse, Basel, Singapore, Rome and Barcelona. The simulations are based on the 2016 version of the Urban Weather Generator. The analysis is separated into three main seasons (instead of the full year): winter, spring, summer. (b) To make a seasonal validation and improve the second tool evaluated in this study, ENVI-met 4.0. The software can simulate urban temperature, humidity and wind speed. Guides are proposed for the enhancement of the accuracy of both estimation procedures. Referring to the results, UWG tends to overestimate the canyon temperature during the summer and has a more realistic estimation on the winter season. ENVI-met has better estimations of temperatures during the summer season compared to UWG. Finally, the UWG weather file contributes a more detailed energy model on a mesoscale model. It considers the seasonal effect and shows the impact of the climate on profiling the UHI phenomena. ENVI-met needs improvement in calculating the anthropogenic heat and in calculation of the mean radiant temperature.

Published
2020

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