Alviss

Healthcare, Vol. 10, Pages 1548: Sasang Constitution May Act as a Risk Factor for Depressive Symptoms—A Survey for Local Residence Healthcare doi: 10.3390/healthcare10081548 Authors: Yunyoung Kim Eunsu Jang This study investigated whether a persons Sasang constitution (SC) could be a risk factor for depressive symptoms. We classified the SC of 653 participants into Taeeumin (TE), Soeumin (SE), and...

A control method of input-parallel and output-series connected inverters with a 3-phase PWM converter for a plasma generator is proposed in this paper. By controlling a DC-link voltage with PWM converter considering the load level, the proposed control method can improve an efficiency in intermediate-load and light-load conditions compared with adopting conventional control method. Through the sim...

In this paper, characteristics of each topology for all metal induction cooker systems are compared and analyzed. For the evaluation, the same dimension of working coils is designed and the resonant network of each topology are analyzed by measuring equivalent R-L parameters of working coils and vessels. Through the simulation result, power dissipations of each topology are compared and analyzed. ...

In this paper, a control strategy of a 2-stage AC-AC converter for a plasma generator consisting of an AC-DC PWM converter and a high-frequency phase-shift full-bridge DC-AC inverter is proposed. In case of previous control methods of this configuration, the output power quality in the light-load region is not seriously considered. Therefore, the control method to minimize degradation of the outpu...

This study presents a design method of resonant network for the superheated steam (SHS) generator using induction heating (IH) method. In order to generate the pure SHS, a heating object composed of titanium (Ti) grade 2 is used. Thus, to facilitate the IH, the analysis of SHS and Ti-load characteristics should be performed. Based on the analysis results, feasible resonant networks are reviewed an...

In this study, wafer cleaning equipment was designed and fabricated using the induction heating (IH) method and a short-time superheated steam (SHS) generation process. To prevent problems arising from the presence of particulate matter in the fluid flow region, pure grade 2 titanium (Ti) R50400 was used in the wafer cleaning equipment for heating objects via induction. The Ti load was designed an...

In this study, a control method to improve the light and intermediate load efficiencies of a plasma generator is proposed. Considering the characteristics of plasma load, which requires high voltage and high frequency operations, a control method that can reduce losses that occur in the power semiconductor device and transformer is designed. In addition, the efficiency of the system applying the p...

This paper proposes approaches to minimize the touch current of mobile devices. By modeling an equivalent circuit of a touch current, the cause of the touch current occurring in the mobile devices is analyzed. Through the analysis results, the circuit that minimizes the touch current is proposed. Furthermore, the validity of the proposed circuits is verified through simulation and experimental res...

In this paper, the optimal design guidelines for flexible cooking surface (FCS) induction cooktop is proposed taking into account inverter-coil integrated induction heating (IH) module. In order to improve the heating performance of FCS IH system, the working coil shape and resonant network should be optimally designed. Through simulation and comparison and analysis results, working coil and the r...