Quantum Electronic Transport in Graphene Superlattice Systems

Graphene, a single layer of carbon atoms, is the very first 2D material. Its experimental discovery in 2004 revolutionized condensed matter physics and material science, declaring the advent of the era of 2D materials. This talk addresses transport properties of electrons in graphene, focusing particularly on superlattice systems.

• November 9th (Tue), 4:00-5:00pm Taiwan Time; 9:00-10:00am Germany Time
• Speaker: Ming-Hao Liu, Associate Professor, Department of Physics, National Cheng Kung University
• Moderator: Tetyana Galatyuk, Professor, Department of Physics, Technische Universität Darmstadt
• Webex Link: https://nckucc.webex.com/nckucc/j.php?MTID=m1f36f49cf5cd3b51b0a902a4cccef16e

Development of Ultrasonic Applications and Transducers

Ultrasound systems had been applied to daily life and industry for years. Recently, the progresses on semiconductor and MEMS technology have dramatically improved the computational capability and efficiency of ultrasonic devices. Various state-of-the-art ultrasonic applications have been investigated. In this talk, the speaker would introduce the latest ultrasonic devices and systems based on his research experience.

• November 11th (Thu), 3:30-4:30pm Taiwan Time; 8:30-9:30am Germany Time
• Speaker: Chih-Hsien Huang, Assistant Professor, Electrical Engineering Department, National Cheng Kung University
• Moderator: Andreas Haun, Head of Service Centre, Technische Universität Darmstadt
• More Info: https://www.etit.tu-darmstadt.de/fachbereich/etit_newsdetails_136128.de.jsp
• Webinar Link: https://tinyurl.com/ydosjlwy

Toward the Integration of Modern Techniques for Sediment-Related Hazard Assessment and for Mitigation against the Causal Disaster

In this talk, Professor Tai will introduce the recently developed assessment techniques for sediment-related hazards, such as landslides and debris flows, which are based on the estimation of the plausible failure surface/area and the flow paths of the released mass. In addition to the theoretical modeling works, a GPU-accelerated simulation tool is introduced for mimicking the subsequent flow paths, where the input and output data are linked to a 3D user-interactive illustration system for investigating various scenarios.

• November 22nd (Mon), 4:30-5:30pm Taiwan Time; 9:30-10:30am Germany Time
• Speaker: Yih-Chin Tai, Professor, Department of Hydraulic and Ocean Engineering, National Cheng Kung University
• Moderator: Hauke Zachert, Professor, Institute of Geotechnics, Technische Universität Darmstadt
• Webex Link: https://nckucc.webex.com/nckucc/j.php?MTID=mdda239ba2c46a6b280e4d8c25640cbd1

3D Metal Printing at NCKU/ME

A powder bed fusion process in additive manufacturing is introduced in three dimensional finite element heat transfer model to simulate the size of melt pool’s cross section for finding the optimal parameters to reduce the porosity and residual stress. In addition, the spatter from the melt pool is simulated by CFD to enhance the quality of the surface roughness in 3D parts. Also, the methodology in measuring the melt pool shape using a high-speed camera is implemented in the system for predicting the porosity of 3D parts based upon machine learning.

• November 24th (Wed), 3:00-4:00pm Taiwan Time; 8:00-9:00am Germany Time
• Speaker: Yu-Lung Lo, Distinguished Professor, Mechanical Engineering, National Cheng Kung University
• Webex Link: https://nckucc.webex.com/nckucc/j.php?MTID=m8826a8f7d0dcbdde59f3c3987f714fda

Reconfigurable Intelligent Surface Aided Communication

Millimeter wave (mmWave) communication is required to provide high data rate in next generation wireless networks. Programmable reconfigurable intelligent surface (RIS) provides an energy efficient way to combat severe signal attenuation or even blockage commonly encountered in mmWave communications. In this talk, the speaker introduces about performance analysis and challenges of beam training in RIS aided communication

• November 30th (Tue), 3:30-4:30pm Taiwan Time; 8:30-9:30am Germany Time
• Speaker: Chandradeep Singh, Postdoc Fellow, Electrical Engineering Department, National Cheng Kung University
• Moderator: Marius Pesavento, Professor, Communication Systems Group, Technische Universität Darmstadt
• More Info: https://www.etit.tu-darmstadt.de/fachbereich/etit_newsdetails_136128.de.jsp
• Webinar Link: https://tinyurl.com/ydosjlwy

Adaptive Backstepping and Learning Approach for Tracking Control of Aerial Robotics

This talk focuses on introducing the advanced control techniques for quadrotor tracking and aerial manipulation by utilizing adaptive backstepping controllers and Deep Deterministic Policy Gradient. With the consideration of Euler-Lagrange model, numerical examples and experimental results are illustrated to show the efficiency of the proposed approaches.

• December 6th (Mon), 3:00-4:00pm Taiwan Time; 8:00-9:00am Germany Time
• Speaker: Yen-Chen Liu, Associate Professor, Department of Mechanical Engineering, National Cheng Kung University
• Webex Link: https://nckucc.webex.com/nckucc/j.php?MTID=m64e5f6a3db2c589d4ce492cc4f75728e

Universe in Laboratory

One of the great challenges in modern physics is to understand the evolution of our Universe from the Big Bang to the state we observe today. Of particular interest is to unravel the microscopic properties of the two extreme states of strong-interaction matter that existed, on the one hand, almost 14 billion years ago in the early Universe and, on the other hand, is created when two neutron star merge as recently observed for the first time. The possibility to form and explore in the laboratory strong-interaction matter under conditions similar to those realized a few microseconds after the “Big Bang”, or to those in the interior of compact stellar objects, is truly fascinating. The physics of those extreme states of matter is of pivotal significance for understanding a fundamental aspect of nature.

• December 13th (Mon), 3:00-4:00pm Taiwan Time; 8:00-9:00am Germany Time
• Speaker: Tetyana Galatyuk, Professor, Department of Physics, Technische Universität Darmstadt
• Moderator: Yi Yang, Associate Professor, Department of Physics, National Cheng Kung University
• Webex Link: https://nckucc.webex.com/nckucc/j.php?MTID=m30eecb0e841bda07807a5a9744268459

From the Ground to Space, From Heavy-ion Physics to Cosmic Rays

In this talk, Associate Professor Yang will briefly introduce the activities of high energy and high energy nuclear physics in NCKU, including the STAR experiment and AMS-02 experiment.

• December 15th (Wed), 3:00-4:00pm Taiwan Time; 8:00-9:00am Germany Time
• Speaker: Yi Yang, Associate Professor, Department of Physics, National Cheng Kung University
• Moderator: Guy D. Moore, Professor, Department of Physics, Technische Universität Darmstadt
• Webex Link: https://nckucc.webex.com/nckucc/j.php?MTID=macaf5c839d4f3d3f26df1326ba8e6092