A5058973511- Nuclear Materials and Properties
- Heat and Mass Transfer in Porous Media
- Lattice Boltzmann Simulation Studies
- Nuclear reactor physics and engineering
- Granular flow and fluidized beds
- Particle Dynamics in Fluid Flows
- Nuclear Engineering Thermal-Hydraulics
- Cyclone Separators and Fluid Dynamics
- Aerosol Filtration and Electrostatic Precipitation
- Advanced ceramic materials synthesis
- Advanced Power Amplifier Design
- Metal Alloys Wear and Properties
- Fluid Dynamics and Heat Transfer
- Wireless Power Transfer Systems
- Nuclear and radioactivity studies
- Landslides and related hazards
- Particle accelerators and beam dynamics
- Metallurgy and Material Forming
- Fusion materials and technologies
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Global Energy Security and Policy
- Heat transfer and supercritical fluids
- Radioactive element chemistry and processing
- Risk and Safety Analysis
Pohang University of Science and Technology
2011-2022
Pohang Accelerator Laboratory
2022
Summary form only given, as follows. This paper reports a new three-stage Doherty power amplifier (DPA) with an adaptive driving amplifier. The inserted at the input of carrier cell controls to eliminate gate leakage current high levels. bias voltage is adjusted using envelope tracking technique according For WiMAX signal, proposed DPA has total DE 39.5 % 8-dB BOP.
The process of the ex-vessel molten core cooling in a pre-flooded reactor cavity during severe accident light water includes complicated phenomena such as melt jet breakup, debris bed formation and core-concrete interaction. coolability its impact on containment consequences are dependent interactions among those phenomena. A simplified parametric model, COOLAP-II, covering was developed for synthetic assessment coolability. model validated breakup initial by comparison with full-model...
Abstract The Pohang Light Source-II (PLS-II) is a synchrotron user-service facility that should provide period of 190 days per year with stable operation. A series beam dump problems related to the superconducting radio-frequency (SRF) system but unknown cause occurred twenty-five times from 2016 2018, which severely degraded operation PLS-II and SRF system. Intensive investigation has shown relevant dumps when helium (He) flow control valves operated momentarily during adsorber regeneration...