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  1. Article

    Open Access

    A retrospective observational study on the treatment outcomes of 26 patients with spinal cord astrocytoma including two cases of malignant transformation

    To determine the biologic behavior and prognostic factors of spinal cord astrocytoma, we reviewed surgical and clinical outcomes. Due to the rarity of spinal cord astrocytoma, there is a lack of research regar...

    Seong Jun Ryu, Jong Yul Kim, Kyung Hyun Kim, Jeong Yoon Park in European Spine Journal (2016)

  2. No Access

    Chapter

    Testing Operation and Control Functions of Wind Power Plant Control System by Hardware in-the-loop Simulation

    The grid system operators in many countries require a grid code for a wind power generation system (WPGS) or a wind power plant (WPP). For satisfying the grid code, a wind power plant control system (WPPCS) is...

    Jong Yul Kim, Gyeong Hun Kim, **-Hong Jeon in Renewable Energy in the Service of Mankind… (2015)

  3. No Access

    Chapter

    Comparative Study of Two Types of Wind Turbine Simulators for Wind Energy Conversion System

    Electricity generation using wind energy is becoming the fastest growing source of renewable energy. There are several types of wind turbine simulator (WTS) or emulator for evaluation of wind turbine generator...

    Gyeong-Hun Kim, **-Hong Jeon, Jong-Yul Kim in Renewable Energy in the Service of Mankind… (2015)

  4. No Access

    Chapter and Conference Paper

    Dynamic Battery Modeling for Microgrid Operation

    Operating shceme of a battery enenrgy storage system (BESS) is important for reliability and stability of a microgrid. The state of a battery has to be considred for operating scheme decision of the BESS becau...

    Gyeong-Hun Kim, **-Hong Jeon, Jong-Yul Kim in Control and Automation, and Energy System … (2011)

  5. No Access

    Chapter and Conference Paper

    Optimal Voltage and Reactive Power Control of Local Area Using Genetic Algorithm

    To improve the voltage profile and to reduce system losses, many switched shunt capacitors are used in a power system. It is necessary to coordinate them for operating the system effectively. In this study, a ...

    Hak-Man Kim, Jong-Yul Kim, Chang-Dae Yoon in Knowledge-Based Intelligent Information an… (2006)