Research Categories

Earth Sciences & Engineering

NameResearch Interests
Assoc Prof Adam Douglas SwitzerAdam Switzers main research interest lies in using coastal stratigraphy to define the recurrence interval of catastrophic marine inundation events (tsunami or large storms). His most significant contributions to the field include: * the first study of modern storm deposits from the Australian southeast coast; * the recognition that immature heavy mineral suites in coastal sandsheets may indicate tsunami deposition rather than storm deposition in coastal settings; * the recognition of an erosional signature of large scale washover of coastal dunes using Ground Penetrating Radar; * initial evaluation of the sedimentary processes associated with the 2004 Indian Ocean tsunami on the southeast coast of India a definitive review and re-analysis of large boulder accumulations in coastal settings on the southeast Australian coast.
Prof Benjamin Peter HortonMy research concerns sea-level and environmental change. I aim to understand and integrate the external and internal mechanisms that have determined sea-level changes in the past, and which will shape such changes in the future. Fundamental to this aim is bridging the gap between short-term instrumental records and long-term geological reconstructions and geophysical predictions. To this end, I have developed, tested and validated a new methodological approach that uses microfossils to quantitatively reconstruct former sea levels. By applying this approach and simultaneously developing cross-disciplinary collaborations, my work has led to new knowledge, in particular predictive models of relative sea-level, and has impacted upon important societal and economic coastal problems.
Asst Prof Benoit TaisneBenoit Taisne’s current research focuses on the early anticipation of the style and size of volcanic eruptions. He uses new tomographic methods (muon telescopes) to shed light on two crucial parts of the volcanic system that have so far remained elusive for volcanologists and hazard managers, and which are key inputs for ash dispersal models: - The structure (i.e. density distribution) and geometry of the volcanic conduit, - The characteristics of ash columns. Results from the muon tomography experiments will be complemented by more traditional data and methods from different disciplines like geophysics (seismologic studies), geodesy (GPS studies), and geochemistry (petrology and gas chemistry). All these data will be jointly inverted in near real-time with physics-based models of magma migration to get quantitative values for key physical parameters controlling the eruption style, and hence anticipate the style and size of eruptions to come. His main research interests are: - Magma migration - Eruption dynamic - Development of realtime monitoring technics - Numerical simulation - Laboratory experiments in fluids dynamics
Asst Prof Caroline Bouvet De MaisonneuveThe development of increasingly precise geophysical monitoring tools has led to progress in the field of eruption forecasting, but predicting the size and vigor of an eruption remains a major challenge in the assessment of risks. The vast majority of active volcanoes display wide ranges in eruption styles over long and short time scales, from effusive lava flows or dome growth to explosive Strombolian, Vulcanian, or Plinian eruptions. My long term goals are to shed light on the combinations of processes and physical parameters that govern the magnitudes and styles of eruptions, and to enhance our ability to interpret geophysical and geodetic monitoring signals in terms of magmatic processes. My main research interests, therefore, focus on: What processes control the magnitude and style of a given eruption? How and why do these controlling factors change from one eruptive center to the next? Why does the magnitude and style vary from eruption to eruption at a same volcano? In addition, the fact of addressing these questions may also bring elements of response to more petrology-based problems such as: How to reconcile the plutonic and volcanic record? How and where do magmas differentiate (e.g. assimilation vs. fractional crystallization)? How do the transport, accumulation, and differentiation of magma affect the formation of continental crust?
Assoc Prof Cheng NianshengProf Cheng Nian-Sheng's areas of expertise are hydraulics, sediment transport and turbulence. His current research works focus on open channel flows with vegetation, turbulent flows over dune-covered bed, and simultaneous measurements of two-phase flows.
Asst Prof Cheung Sai Hung-Catastrophe risk modeling, analysis, mitigation and management due to natural disasters and man-made hazards -Reliability, Risk engineering and science -Stochastic dynamics -Complexity science -Earthquake engineering, Performance-based engineering -Sustainable urban planning and development -Climate Change Impact Studies -Optimal decision making, design and control under uncertainty -Uncertainty quantification, System identification -Structural health monitoring
Prof Chiew Yee MengHe has had more than 25 years of research experience in many aspects of fluvial, hydraulic, coastal and offshore engineering. His particular research interest is in the area of erosion, sediment transport and turbulence. In addition to his research activities, Dr Chiew provides extensive consulting services to the engineering industries, both internationally and in Singapore. He was the Chairman of the 2nd International Conference on Scour and Erosion (ICSE-2) that was held in Singapore in November 2004. SELECTED PUBLICATION LIST 1. Chiew, Y. M. "Mechanics of Local Scour Around Submarine Pipelines" Journal of Hydraulic Engineering, ASCE, vol. 116, no. 4, 515-529, 1990. 2. Chiew, Y. M. "Scour Protection at Bridge Piers" Journal of Hydraulic Engineering, ASCE, vol. 118, no. 9, 1260-1269, 1992. 3. Chiew, Y. M. and Parker, G. "Incipient Sediment Transport on Non-Horizontal Slopes" Journal of Hydraulic Research, IAHR, vol. 32, no. 5, 649-660, 1994. 4. Chiew, Y. M. "Mechanics of Riprap Failure at Bridge Piers" Journal of Hydraulic Engineering, ASCE, vol. 121, no. 9, 635-643, 1995. 5. Song, T. and Chiew, Y. M. and Chin, C. O. "Effect of Bedload Movement on Flow Friction Factor" Journal of Hydraulic Engineering, ASCE, vol. 124, no. 2, 165-175, 1998. 6. Cheng, N. S. and Chiew, Y. M. "Turbulent Open-Channel Flow with Upward Seepage" Journal of Hydraulic Research, IAHR, vol. 36, no. 3, 415-431, 1998. 7. Melville, B. W. and Chiew, Y. M. "Time Scale for Local Scour at Bridge Piers" Journal of Hydraulic Engineering, ASCE, vol. 125, no. 1, 59-65, 1999. 8. Cheng, N. S. and Chiew, Y. M. "Incipient Sediment Motion with Upward Seepage" Journal of Hydraulic Research, IAHR, vol. 37, no. 5, 665-681, 1999. 9. Ming, D. H. and Chiew, Y. M. "Experimental study for shoreline changes behind a detached breakwater" Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, vol. 126, no. 2, 63-70, 2000. 10. Chiew, Y. M. and Lim F. H. "Failure behavior of riprap layer at bridge piers under live-bed conditions" Journal of Hydraulic Engineering, ASCE, vol. 126, no. 1, 43-55, 2000. 11. Song, T. and Chiew, Y. M. "Turbulence Measurement in Non-Uniform Open Channel Flow Using an Acoustic Doppler Velocimeter (ADV)". Journal of Engineering Mechanics, ASCE, vol. 127, no. 3, 219-232, 2001. 12. Chiew, Y.M. "Failure Mechanisms of Riprap Layer around Bridge Piers". Invited Paper (Plenary Section) in Proc. of First Int. Conf. on Scour of Foundations (ICSF-1), Vol. 1, 70-91, 2002. 13. Chen, X. W. and Chiew, Y. M. "Response of Velocity and Reynolds Stress Profiles to Sudden Change of Bed Roughness in Open-Channel Flow". Journal of Hydraulic Engineering, ASCE, vol. 129, no. 1, 35-43, 2003. 14. Chen, X. W. and Chiew, Y. M. "Velocity Distribution of Turbulent Open Channel Flow with Bed Suction". Journal of Hydraulic Engineering, ASCE, vol. 130, no. 2, 140-148, 2004. 15. Chiew, Y. M. "Local Scour and Riprap Stability at Bridge Piers in a Degrading Channel". Journal of Hydraulic Engineering, ASCE, vol. 130, no. 3, 218-226, 2004. 16. Lu, Y., Chiew, Y.M. and Cheng, N. S. "Review of seepage effects on turbulent open-channel flow and sediment entrainment". Journal of Hydraulic Research, IAHR, 46(4), 476-488, 2008.
Prof Chu JianDr Chu's area of expertise includes labotrory and in-situ testing, soil properties, ground improvement, land reclamation, and waste utilisation. My research focus areas at the present are: (1) Instability behaviour of granular soil; (2) Innovative ground improvement methods including the use of microbial technologies; (2) Waste utilisation; and (4) Disaster mitigations.
Assoc Prof Danne Ojeda HernandezHer current research is devoted to the disciplinary redefinitions of Graphic Design and its implications in contemporary visual culture. It analyses antithetical aspects within the evolution of graphic design, like its communicative and allegoric nature, autonomy and social commitment, and expressivity and new media standards. The theoretical basis of this research includes binary concepts like natural/artificial, original/copy, public/private, and physical/virtual. The research is methodologically structured upon close readings of a variety of visual objects from the perspective of graphic design. These objects are discusses in connection with different sorts of conceptual platforms, like manifestos, (un)realized projects, curatorial proposals and critical reviews among others sources within today's dominant orientations in graphic design. Moreover, her areas of interest can be summarized as follow: Issues in Visual Communication/Contemporary Design, Design Theory, Design and Science and Art and Design relations. Her areas of specializations regarding professional practice are mainly editorial and exhibition design. At NTU, Prof. Ojeda is engaged (or has been engaged) with the following projects: TIER1 [2013] D-SIGN-LAB. Research Experiments on Art, Design and Science with a focus on Magnetic Resonance Imaging (MRI) Analysis. TIER0 [2010] Asian-Pacific Mega-exhibitions: A Critical Perspective RCC [2009] For the Sake of a Second Life: Approaches to Sustainable Design — Selection of Danne Ojeda’s works: —
Asst Prof David Lallemant- Disaster risk modeling - Engineering risk and reliability analysis - Remote sensing and earth observation technology - Geostatistics/spatial statistics - Predictive modeling - Humanitarian and development sciences - Design thinking as a research tool