코로나 19시대 종교현상학의 이슈와 기독교사회윤리학의 테제들

이상철 ( Lee¸ Sang Cheol ) 한국기독교사회윤리학회 2021 기독교사회윤리 Vol.49 No.-

코로나 19는 정치, 경제, 사회, 문화 전 영역에서 일어나는 있는 충격과 파장의 근원이 되었다. 종교분야도 예외는 아니다. 본 논문은 “코로나 19시대 종교현상학의 이슈와 기독교사회윤리의 테제들”이라는 제목아래, 전반부에서는 코로나 19에 대한 종교현상학적인 접근, 후반부는 기독교사회윤리의 이슈들을 파헤친다. 종교현상학적인 접근은 코로나 19 시대 한국 개신교인의 인식조사를 토대로 한다. 개신교인의 신앙패턴이 코로나 19를 계기로 어떻게 변화되었는지를 살피면서 나는 코로나 19 이후 종교현상학의 특징을 1) 비종교사회의 도래, 2) 종교적 아우라의 파괴, 3) 예배의 재구성이라 요약하였다. 코로나 19로 인한 예배의 중단과 파행은 한국사회가 비종교사회 문턱으로 진입한 사건으로 읽힌다. 본회퍼의 “하느님 없이, 하느님 앞에서, 하느님과 더불어” (Before God, with God, without God)발언은 코로나 19 이후 비종교사회를 해석하는 중요한 단서가 되리라 본다. Covid-19로 인해 촉발된 비대면 온라인 예배의 증가는 기존 예배가 지녔던 아우라를 붕괴시켰고, 기존의 일방향으로 이루어지던 예배는 달라진 매체환경 속에서 상호소통과 그에 따른 예배 형식의 전환을 요청받고 있다. 종교현상학적인 분석을 마친 후 나는 기독교사회윤리차원에서 Covid-19 시대를 향한 대안을 아래와 같이 3가지로 제안할 것이다: (1) 세속화시대에 걸맞는 기독교사회윤리, (2) 반지성주의(anti- intellectualism)를 극복하는 기독교사회윤리, (3) 타자를 향한 환대의 윤리. This paper explores the problem of religious phenomenological approaches to COVID-19 in the first half and Christian social ethics in the second half. The religious phenomenological approach is based on a survey of Korean Protestants’ perceptions during the COVID-19 era. Looking at how Protestant faith patterns changed in the wake of COVID-19, I summarized the characteristics of religious phenomenology after COVID-19 as 1) the arrival of non-religious societies, 2) the destruction of religious aura, and 3) the reconstruction of worship. The suspension and disruption of worship due to COVID-19 is read as an incident that Korean society has entered the threshold of non-religious society. Bonhoeffer’s “Before God, with God, without God” statement is expected to be an important clue to interpreting non-religious society after COVID-19. The increase in non-face-to-face online worship triggered by COVID-19 has collapsed the aura of existing worship, and existing one-way worship services are being asked to communicate with each other and to change the form of worship. After the religious phenomenological analysis, I will propose three alternatives to the COVID-19 era: (1) Christian social ethics suitable for the secular age, (2) Christian social ethics overcoming anti-intellectualism, and (3) the ethics of hospitality toward others.

Analysis and Design of a Wireless Power Transfer System With an Intermediate Coil for High Efficiency

SangCheol Moon,Bong-Chul Kim,Shin-Young Cho,Chi-Hyung Ahn,Gun-Woo Moon IEEE 2014 IEEE transactions on industrial electronics Vol.61 No.11

<P>This paper presents a theoretical analysis, an optimal design method, and experimental results for a wireless power transfer (WPT) system with an intermediate coil. The analytical expression of the dc voltage transfer function is presented and discussed. In a two-coil WPT system, which has low coupling coefficient, the intermediate coil boosts the apparent self-inductance and magnetizing inductance of the primary side at around the resonance frequency of the intermediate coil, so that the apparent coupling coefficient is compensated. The coupling coefficient makes the system efficiency increase and induces bifurcation phenomenon. From the analysis, this paper proposes an optimal design method using the second resonance frequency operation with the bifurcation phenomenon and presents design procedure for high efficiency. A prototype of the WPT system with the intermediate coil is implemented and experimented to verify the validity of the analysis and the proposed design method. The prototype operates at 100 kHz switching frequency and has an air gap between primary and secondary side of 200 mm. An overall system efficiency of 95.57% has been achieved at 6.6 kW of output power.</P>

Alternating Development Strategies in Jeju Island, Korea

Sangcheol Kwon(권상철) 대한지리학회 2008 대한지리학회지 Vol.43 No.2

섬지역은 작은 규모와 고립된 특성으로 인해 취약한 경제기반으로 특징지워 진다. 여기에 오랜 고립에 따른 독특한 문화와 자연경관은 관광 중심의 개발로 이어지게 된다. 제주도도 세계 다른 섬지역과 마찬가지로 이러한 개발을 경험하는데, 이러한 지역변화는 섬지역의 취약성에 초점을 맞추어 대다수 중앙정부 주도로 이루어진 것으로 지역에서의 대응은 축소되어 이해되고 있다. 본 논문에서는 섬지역 주민들은 자신들의 취약성에 기초해 중앙정부의 정책을 수용하면서 자신들에게 유리하게 변용하는 교호적 전략을 구사해 왔다고 이해한다. 교호적 전략은 3가지 측면에 반영되고 있는데, 첫째 제주도는 국회의원 선거에서 무소속 후보를 선호해 오다 근래에는 여당 후보 그리고 야당 후보를 교대로 선출하는 모습을 보여준다. 둘째 중앙정부의 지역개발정책에 대한 반대운동을 통해 주민생활의 향상과 개선을 반영하는 수정을 요구하여 왔다. 셋째 중앙정부 주도의 개발정책이 효율성을 극대화하는 거점중심의 관광지 개발을 지역의 균형발전 요구로 대응하며 제주전역으로 개발을 확대시켰다. 이러한 개발 과정과 결과는 중앙정부의 관광개발 정책을 견제, 섬으로서의 제주지역의 취약함에서 찾아낸 교호적 전략의 결과로 볼 수 있을 것이다. Islands are vulnerable to outer influences due to their small size and isolation. Tourism often becomes an important development focus because of their unique culture and nature. Jeju-do, as well as other islands, has experienced such development mostly led by central government, and the regional change was understood as the outcome of global influences without much concern with the local response or strategy. Thus, vulnerability has been the key theme in island development studies. This paper examines the current state of island development as an outcome of locals’ alternating strategy in which the islanders accept the central government’s plan, but express their demands to modify them. It is reflected in the electoral preference for ruling or oppositional parties, local movements against central government’s development plans, and the spatial organization of tourism sites from a few growth centers to more dispersed, balanced development. These suggest that the current state of island development is not derived from unidirectional global forces, even if islands are peripheral. Rather, it is the outcome of an alternating strategy of Jeju locals accepting the central government development plans while managing them for local benefits.

Intelligent Synchronous Rectification Control for High Efficiency LLC Resonant Converter

SangCheol Moon 전력전자학회 2019 전력전자학술대회 논문집 Vol.2019 No.7

A New Control Method of Interleaved Single-Stage Flyback AC–DC Converter for Outdoor LED Lighting Systems

SangCheol Moon,Gwan-Bon Koo,Gun-Woo Moon IEEE 2013 IEEE TRANSACTIONS ON POWER ELECTRONICS - Vol.28 No.8

<P>In outdoor light-emitting diode (LED) lighting systems, there are a lot of applications. Depending on the output power rating, the power stage to drive an LED can be classified into single-stage and two-stage structures. The single-stage structure is for low-power LED lighting applications. However, it is difficult to apply at over 60-70 W of output power because of its low efficiency and huge transformer at high power. On the other hand, the two-stage structure is usually used for high power applications. However, it is undesirable to cover wide output power range because of its poor power factor (PF) under the light load condition. To solve these problems, this paper proposes a new pulse duty cycle control method with pulse frequency modulation for an interleaved single-stage flyback ac-dc converter. The proposed converter provides high efficiency under heavy loads with low ac line condition and under light loads with high ac line condition. In addition, the proposed converter shows high PF and low total harmonic distortion even when the output power is very low. As a result, a single LED ac-dc converter can cover wide power range for outdoor LED lighting applications. To verify the validity of the proposed converter, an 81-W prototype converter has been implemented and experimented on.</P>

Multinationality, Portfolio Coordination, and Downside Risk

Sangcheol Song 한국자료분석학회 2022 한국자료분석학회 학술대회자료집 Vol.2022 No.7

A Conduction Band Control AC-DC Buck Converter for a High Efficiency and High Power Density Adapter

SangCheol Moon(문상철),Bonggeun Chung(정봉근),Gwanbon Koo(구관본) 전력전자학회 2017 전력전자학술대회 논문집 Vol.2017 No.7

Photocurrent Efficiency Enhancement by Space-Charge Effects in Organic Solar Cells with Low Charge Dissociation Probability

Sangcheol Yoon,황인찬 대한금속·재료학회 2015 ELECTRONIC MATERIALS LETTERS Vol.11 No.1

We numerically investigated space-charge effects in organic solar cells generatingphotocurrent with a low charge dissociation probability, using a drift-diffusionmodel with the Onsager-Braun model. In contrast to the knowledge that spacechargeeffects decrease the photocurrent efficiency, we found that under certaincircumstances, the efficiency can be enhanced by the space-charge effects. It isattributed to the increase of the charge dissociation probability spatially averaged inthe active layer. Space-charge effects become more significant when mobilities areunbalanced leading to more enhancement in photocurrent efficiency.

Percutaneous Coronary Intervention and Coronary Artery Bypass Grafting for the Treatment of Left Main Coronary Artery Disease

Sangcheol Cho,Duk-Woo Park,Seung-Jung Park 대한심장학회 2019 Korean Circulation Journal Vol.49 No.5

Severe stenosis of the left main coronary artery (LMCA) generally occurs as a result of atherosclerosis and compromises the blood supply to a wide area of myocardium, thereby increasing the risk of serious adverse cardiac events. Current revascularization strategies for patients with significant LMCA disease include coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI), both of which have a range of advantages and disadvantages. In general, PCI is associated with a lower rate of periprocedural adverse events and provides more rapid recovery, while CABG provides more durable revascularization. Most clinical trials comparing PCI and CABG for the treatment of LMCA disease have shown PCI to be non-inferior to CABG with respect to mortality and the serious composite outcome of death, myocardial infarction, or stroke in patients with low-to-intermediate anatomical complexities. Remarkable advancements in PCI standards, including safer and more effective stents, adjunctive intravascular imaging or physiologic evaluation, and antithrombotic treatment, may have contributed to these favorable results. This review provides an update on the current management of LMCA disease with an emphasis on clinical data and academic and clinical knowledge that supports the use of PCI in an increasing proportion of patients with LMCA disease.

Determinants of the Level of TMT Localization in Korean Foreign Subsidiaries

Sangcheol Song(송상철),Jiwoong Ock(옥지웅),Jae-Eun Lee(이재은) 연세대학교 경영연구소 2013 연세경영연구 Vol.50 No.2

본 연구는 해외 자회사 경영진 현지화 수준의 영향요인으로 내부거래 의존성, 자회사 규모, 본사의 기술적 역량을 상정하고 이러한 요인들이 해외 자회사의 경영진 현지화 수준에 미치는 영향을 해외 자회사 현지경험의 조절효과를 중심으로 분석하고 있다. 29개 국가에 진출해 있는 583개의 한국계 해외 자회사를 대상으로 실증 분석한 결과는 다음과 같다. 첫째, 해외 자회사의 내부거래 의존성과 본사의 기술적 역량은 해외 자회사의 경영진 현지화 수준과 부(-)의 관계가 있는 것으로 나타났다. 둘째, 해외 자회사의 규모는 해외 자회사 경영진의 현지화 수준과 정(+)의 관계가 있는 것으로 나타났다. 마지막으로, 해외 자회사 현지경험의 조절효과를 검증한 결과 해외 자회사의 현지경험은 내부거래 의존성과 경영진 현지화 수준간의 관계, 해외 자회사 규모와 경영진 현지화 수준간의 관계를 부(-)적으로 조절하는 것으로 나타났다. 이러한 결과는 해외 자회사의 현지경험이 증가할수록 해외 자회사의 계열사간 내부거래 의존성이 해외 자회사 경영진 현지화 수준에 미치는 부정적 영향이 완화되며, 해외 자회사 규모가 해외 자회사 경영진의 현지화 수준에 미치는 긍정적 영향이 약화된다는 것을 의미한다. 본 연구는 해외 자회사 경영진 현지화 수준의 영향요인들의 주효과와 더불어 해외 자회사의 현지경험을 조절효과로 동시에 고려함으로써, 보다 동태적인 관점에서 해외 자회사 경영진 현지화의 과정을 규명했다는 점에서 선행연구들과 차별성을 가지고 있다. 결론적으로, 본 연구의 실증분석 결과는 다국적 기업의 인력활용정책과 관련된 의미 있는 시사점을 제시해 줄 수 있을 것으로 기대된다. This study analyzes the determinants of the level of TMT localization of 583 Korean subsidiaries entered in 29 different countries and how the subsidiary experience in host country affects their staffing policy for manager positions at foreign subsidiaries. The results of empirical analysis present that the intra-firm trade dependency of subsidiaries and headquarter technological capabilities show significantly negative effect, whereas subsidiary size shows significantly positive effect on the localization level of management team. Subsidiary experience in host country negatively moderates the effects of intra-firm trade dependency and subsidiary size on local employment policy of foreign subsidiaries but not with headquarter technological capability. The contribution of this research is that we tried to find out the dynamics of localization process of the foreign subsidiary. In particular, we investigated how the experience of foreign subsidiaries in a host country moderates the impact of three key variables on Korean firms’ expatriation decisions, which include a dependency of intra-firm trade, subsidiary size, and headquarter technological capability. These findings suggest that to explain local employment policy of Korean MNCs, it is necessary to consider both main and interaction effects of predictors.