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Keynote Speakers

Keynote Speaker I

Prof. Hans-Uwe Dahms
Kaohsiung Medical University, Taiwan

Dr. Hans-Uwe Dahms is a professor at Kaohsiung Medical University. He is interested in stress responses in general and within aquatic systems in particular. He, his colleagues and students integratively study pollution and the toxicology of stressors from physical, chemical, and biological sources. He is equally interested in climate change, the spread of diseases, antibiotic-resistance, food and drink safety from water sources, and integra-tive approaches in environmental and public health monitoring, risk assessment and management. He advised more than 25 Ph.D. students in their research and published more than 275 papers in scientific journals. He served as a reviewer for more than 70 SCI journals, as editorial board member of 12 reputed scientific journals, academic editor of PLosONE, and as editor in chief of FRONTIERS in Marine Pollution.


Speech Title: "Precious Bioresource Information from Hydrothermal Vents (HVs)"


Abstract: Marine hydrothermal vents (HVs) are unique extreme environments that share several similarities with projected global and climate change scenarios in marine systems (e.g., low pH due to high carbon dioxide and sulfite compounds, high temperature and turbidity, high loads of toxic chemicals such as H2S and trace metals). Particularly shallow HVs are easy to access for short and long-term experiments. Research on organisms from shallow HVs may provide insights in the molecular, ecological, and evolutionary adaptations to extreme oceanic environments by comparing them with evolutionary related but less adapted biota. A shallow water HV system at the northeast Taiwan coast has been intensively studied by several international research teams. These studies revealed astounding highlights at the level of ecosystem (being fueled by photosynthesis and chemosynthesis), community (striking biodiversity changes due to mass mortality), population (retarded growth characteristics), individual (habitat attractive behavior), molecule (adaptations to elevated concentrations of heavy metals, low pH, and elevated temperature). Subsurface marine HVs may provide a particular advantage to better understand evolutionary conditions of the early earth and future climate predictions for marine life. The potential of shallow HVs both in their use as a template for global change scenarios and as a source for diverse bioresource information for applied technologies are highlighted here. Particularly the rare shallow water HVs are valuable assets and sights for both research and education and deserve particular protection for their substantial bioresource information potential as rare and extreme environments and as natural heritage sites at national and international level.


Keynote Speaker II

Prof. Harold Yih-Chi Tan
National Taiwan University, Taiwan

Ph. D. of Biological and Environmental Engineering, Cornell University,USA

Employment History:
2011~, Director, Center for Weather Climate and Disaster Research
2007-2009 Director, Disaster Research Center, National Taiwan University
2003-2009 Director, Hydrotech Research Institute, National Taiwan University
2003/2-2003/5-Visiting Scholar, Civil and Environmental Engineering, UCLA
1994-now Professor, Bioenvironmental Systems Eng., National Taiwan University

Professional Career Highlights:
1. Professor and Director, National Taiwan University
2. Vice Chairman- ICID- Working Grouping of Environmental Impact of Irrigation, Drainage and Flood Control
3. National Correspondents of the IAHS Association, IUGG- Chinese Taipei Committee
4. Secretary General, ICID-Chinese Taipei Committee
5. Chairman, Taiwan association of Engineering and Environment

Prof. Harold Yih-Chi Tan's researches related to earthquake to analyze the groundwater level changed with analytical solution and observed data to be verified to published at Water Resources Research. Furthermore, the national policy of watershed management and Flood mitigation after the 921 Chi-Chi Earthquake in Taiwan is published on Natural Hazards. His research has focused on climate change, land subsidence and disasters reduction.


Speech Title: "Disaster of Woody Debris and Turbidity Current Venting in a Reservoir "


Abstract: Since the completion of a reservoir, sedimentation process decreases reservoir storage and woody debris affects the operation of hydraulic works in many montane areas, especially for the power plant turbines. The flow mechanism of woody debris is usually following with the turbidity current and collection near the plunge point location in a reservoir. Therefore, the collection location of woody debris is valuably to estimate the plunge point location of the turbidity current. If the turbidity current is generated and travelled through a reservoir, successful operation of a sluicing outlet to vent turbidity current depends on accurate prediction of turbidity current movement. In-situ measured data of sediment concentration and velocity vertical distribution during a flood event can help understand turbidity current movement in a reservoir. However, field measurement of the turbidity current in a reservoir is relatively difficult because of large water depth, an unsteady fluid mechanism, and harsh environments during a flood. Therefore, the water elevation, cross-section data and inflow discharge are selected to estimate turbidity current movement. The collection location of woody debris in the field is also adapted to verify plunge point location of turbidity current in this study. A display interface is also developed in this study to display the plunge location, movement velocity, body thickness and sediment concentration of turbidity current. For turbidity current venting, the plunge point location and turbidity current movement estimation can provide real-time information to assist the operations of bottom outlets. The study results can also be applied to the related disaster prevention issues on water resources sustainable, reservoir sedimentation and water quality issues.



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2019 5th International Conference on Environment and Bio-Engineering (ICEBE 2019)
Website: http://www.icebe.org/
E-mail: icebe@cbees.net