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2021 NCKU-TUDa Lecture Series (Nov-Dec)

 

2021 NCKU-TUDa Lecture Series (Nov-Dec)

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Registration: https://tinyurl.com/yfvearw9

 

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.

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.

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.

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.

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

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.

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.

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

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.

 

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