These proceedings highlight the fundamental researches and up-to-data developments on energy conversion and high-voltage application by means of low temperature and atmospheric pressure plasma. In recent years, plasma-assisted energy conversion gains increasing attention as an alternative to thermal-catalysis or electro-catalysis. These proceedings discuss and exchange cutting-edge scientific innovations and technological advances in fields like plasma-enabled synthesis of chemicals and fuels, plasma-enabled the environmental clean-up, plasma-enabled catalysis treatment, in-situ probing of plasma-catalyst interactions and its high-voltage applications, which show great potentials in industrial demands like CO2 hydrogenation, CH4 reforming and nitrogen fixation, plasma deposition, chemical synthesis, VOC abatement and high-voltage insulation. This collection of papers presents the main applications of plasma-induced energy conversion and high-voltage discharge in the form of separate chapters, including cutting-edge studies on conversion technology, complex mechanism simulation, in-situ detection and converged applications by artificial intelligence.   These proceedings are suitable for researchers engaged in fields like plasma-catalysis, discharge diagnosis and modelling, chemical modelling and high-voltage applications. The major topics covered in the conference proceedings are: 1)     Advanced plasma-catalysis conversion technology; 2)     Advanced in-situ discharge diagnosis technology; 3)     Advanced in-situ plasma-catalysis characterization; 4)     Multi-scale or innovative modelling technology; 5)     High-voltage discharge and application.

This book constitutes the referred proceedings of two workshops held at the 32nd ACM International Conference on Supercomputing, ACM ICS 2018, in Beijing, China, in June 2018. This volume presents the papers that have been accepted for the following workshops: Second International Workshop on High Performance Computing for Advanced Modeling and Simulation in Nuclear Energy and Environmental Science, HPCMS 2018, and First International Workshop on HPC Supported Data Analytics for Edge Computing, HiDEC 2018. The 20 full papers presented during HPCMS 2018 and HiDEC 2018 were carefully reviewed and selected from numerous submissions. The papers reflect such topics as computing methodologies; parallel algorithms; simulation types and techniques; machine learning.