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82 results on '"White, Paul"'

1. Defining the Characteristics of Critical Mathematical Thinking

Author

Mathematics Education Research Group of Australasia, Monteleone, Chrissy, White, Paul, and Geiger, Vince

Abstract

In this paper, we report on the interim findings of a study that seeks to identify the characteristics of children's Critical Mathematical Thinking CMT. Characteristics of CMT were initially generated from a synthesis of relevant research literature and then validated using a case study methodology via trials in early childhood classrooms. This paper provides a framework for CMT distilled from the literature and an illustrative case study of one student to provide tentative evidence that young children's use of CMT capabilities can be identified. The long term aim of this line of research is to explore the potential to promote CMT capabilities in a targeted manner.

Published
2018

2. Student Difficulties in Abstracting Angle Concepts from Physical Activities with Concrete Materials.

Author

Prescott, Anne, Mitchelmore, Michael, and White, Paul

Abstract

A Year 3 angles unit using the Teaching for Abstraction paradigm was developed on the basis of earlier empirical research and trailed by 12 New South Wales (NSW) teachers. Analysis of data submitted by the teachers showed that the unit was generally successful but a number of minor areas for improvement were identified. An analysis of independent classroom observations of students working on the angles lessons is reported in this paper. It was found that the difficulties students experienced could be classified as matching, measuring, drawing, and describing errors. The results clearly support the hypothesized steps in learning by abstraction. (Author/KHR)

Published
2002

7. Lightweight, aluminum, mirror design optimization for conventional and additive manufacturing processes

Author

Paenoi, Jitsupa, primary, Bourgenot, Cyril J., additional, Atkins, Carolyn, additional, Snell, Robert M., additional, Todd, Iain, additional, White, Paul, additional, Parkin, Kenneth, additional, Ryder, David, additional, Kotlewski, Richard, additional, McPhee, Scott, additional, Chanchaiworawit, Krittapas, additional, Chartsiriwattana, Pearachad, additional, Laoyang, Auychai, additional, Kuha, Teerawat, additional, Leckngam, Apichat, additional, Buisset, Christophe, additional, Rujopakarn, Wiphu, additional, and Poshyachinda, Saran, additional

Published
2022
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13. Passive acoustic monitoring of seabed gas seeps - application of beamforming techniques.

Author

Jianghui Li, White, Paul R., Bull, Jonathan M., Leighton, Timothy G., Roche, Ben, and Davis, John W.

Subjects
OCEAN bottom, BEAMFORMING, SIGNAL-to-noise ratio, GAS leakage, HYDROPHONE
Abstract

Passive acoustics has been identified as an important strategy to determine underwater gas flux at natural sites, or at locations related to anthropogenic activities. The ability of an acoustic system to detect, quantify and locate a gas leak is fundamentally controlled by the signal-to-noise ratio (SNR) of the bubble sounds relative to the background noise. To demonstrate the effectiveness of array processing for passive monitoring of gas seeps, this work considers the use of beamforming methods to enhance the SNR and so improve the performance of passive acoustic systems. To achieve high levels of noise reduction an adaptive bubble focused broadband beamformer is employed, specifically the minimum variance distortionless response (MVDR) beamformer. The technique is demonstrated using an array of five hydrophones collecting data at the controlled CO2 gas release experiment conducted as part of STEMM-CCS (Strategies for Environmental Monitoring of Marine Carbon Capture and Storage) project. [ABSTRACT FROM AUTHOR]

Published
2020
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22. Group behavioral responses of juvenile common carp (Cyprinus carpio) to pulsed tonal stimuli in the presence of masking noise.

Author

Laura Currie, Helen Ann, White, Paul R., Leighton, Timothy, and Kemp, Paul S.

Subjects
CARP, NOISE pollution, STIMULUS & response (Biology), MIGRATORY fishes, DATA analysis
Abstract

Acoustic behavioral deterrent systems are deployed to control range expansion of invasive species, and protect migratory fish from hazardous anthropogenic physical barriers. Installation sites ( e.g. dams and weirs) are generally dominated by high-level background acoustic noise, a commonly neglected consideration when testing the effectiveness of acoustic behavioural devices. A laboratory study investigated the group behavioral responses of common carp ( Cyrpinus carpio ) to tonal stimuli under the presence or absence of a background masking noise. Preliminary data indicates a significant reduction in response under acoustically masked conditions. This has possible implications for future technological developments to ensure they are fit for purpose. Bespoke modifications may be required to ensure deterrents are effective under the background noise levels at proposed sites of interest. [ABSTRACT FROM AUTHOR]

Published
2019
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24. Haptic wheelchair

Author

Lambeta, Mike, primary, Dridger, Matt, additional, White, Paul, additional, Janssen, Jesslyn, additional, and Byagowi, Ahmad, additional

Published
2016
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