• 전기전자학회논문지
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• 제15권1호
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• pp.86-95
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• 2011

본 논문에서는 위성망을 이용한 파워 그리드의 위기관리 시스템을 검증하기 위한 테스트베드 시스템을 제안하였다. 위기관리 시스템의 검증을 위해, 제안된 테스트베드는 위성통신의 통신품질을 기상상황에 맞추어 시뮬레이션 하였으며, 파워 그리드의 동작과 이상상황에 대한 정확한 재현을 위해 FPGA 기반의 Phase Measurement Unit(PMU) 에뮬레이터를 구현하였다. 제안된 위성통신 시뮬레이터는 전국 각 지역의 순간 강수량 및 최대 강수량 데이터를 데이터베이스화하여, 습도와 강수량에 기반을 둔 위성통신의 신뢰성을 모델링 하였으며, 인터넷을 통한 실시간 순간 강수량 데이터를 이용해 실시간 위성통신 신뢰도 맵을 구현하였다. 또한 PMU 에뮬레이터는 FPGA 를 이용한 하드웨어 기반의 에뮬레이터 구현을 통해 동작의 신뢰도를 높였다. 본 논문에서 제안한 테스트베드 시스템은 위성망을 이용한 파워 그리드 위기관리 시스템의 검증과 운영에 적용하였다.

• Journal of Korea Trade
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• 제26권4호
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• pp.63-82
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• 2022

Purpose - Drawing on relational institutional theory, we explored how demographic similarity between board members of a firm and newly emerged political elites led to firms' increased financial resource acquisition such as leverage ratio and decreased export intensity amidst the Asian financial crisis. We also studied how a firm's leverage ratio and export intensity can further affect firm profitability and financial credit rating. Design/methodology - We revisited and explored a unique, unprecedented crisis that affected most Korean firms: the Asian financial crisis that coincided with a governmental shift from a conservative to a liberal party. We collected demographic information from 432 listed Korean firms' board members and 43 political elites of the Blue House from 1998-2000 to create a demographic similarity measurement. We collected firms' financial information, built panel data, and used ordinary least squares regression to test our theory. Findings - Our results showed that demographic similarity between a firm's directors and newly emerged politicians had a positive association with a firm's leverage ratio but a negative association with a firm's export intensity. A firm's leverage ratio had a negative relationship with firm performance measured by firm profitability and financial credit rating. A firm's export intensity showed a positive effect on firm performance. Originality/value - We highlighted that during an economic crisis that coincided with a governmental shift and change of leading political actors, firms exerted efforts to survey the environment and build new external stakeholder relationships to cope with the changing landscape. We proposed that in an emerging market like Korea where low levels of trust and favoritism are prevalent across society, one of the relational institutional strategies that firms can employ is the selection of directors with similar demographic characteristics to political elites based on factors including birthplace and school affiliations. We examined the efforts of firms to build political networks with newly empowered political elites during a financial crisis, and the consequences of establishing such networks. We highlighted that during a financial crisis, the demographic similarity between a firm's board members and newly emerged politicians can provide firms with access to financial resources but can also result in poor management and reduced effort to enhance its international competitiveness.

• 대한임베디드공학회논문지
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• 제10권5호
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• pp.281-296
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• 2015

This paper describes a novel disaster evacuation system using embedded systems such as smart devices for crisis and emergency management. In indoor environments deployed with the Bluetooth Low Energy(BLE) beacons, smart devices detect their indoor positions from beacon messages and interact with Map Server(MS) and Route Server(RS) in the Internet over the LTE and/or Wi-Fi functions. The MS and RS generate an optimal path to the nearest emergency exit based on a novel graph generation method for less route computation, called the Disaster Evacuation Graph(DEG), for each smart device. The DEG also enables efficient processing of some constraints in the computation of route, such as load balancing in situation of different capacities of paths or exits. All data interfaces among three system components, the MS, RS, smart devices, have been defined for modular implementation of our disaster evacuation system. Our experimental system has been deployed and tested in our building thoroughly and gives a good evidence that the modular design of the system and a novel approach to compute emergency route based on the DEG is competitive and viable.

• International Journal of Contents
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• 제7권1호
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• pp.58-64
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• 2011

This paper is concerned with simulation exercises used to train key response agencies for crisis situations. While 'multi-agency' simulations are increasingly acknowledged as a necessary and significant training tool for emergency response organisations, many current crisis simulations are still focused on the revision of existing response plans only. However, a crisis requires a rapid reaction, yet in contrast to an 'emergency', the risks for critical decision makers in crisis situations are difficult to measure, owing to their ill-structure. In other words, a crisis situation is likely to create great uncertainty, unfamiliarity and complexity, and consequently should be managed by adaptive or second order expertise and techniques, rather than routine or structured responses. In this context, the paper attempts to prove that the current practices of simulation exercises might not be good enough for uncertain, unfamiliar, and complex 'crisis' situations, in particular, by conducting case studies of two different underground fire crises in Korea (Daegu Subway Fire 2003) and the UK (King's Cross Fire 1987). Finally, it is suggested that the three abilities: 'flexibility', 'improvisation' and 'creativity' are critical in responding to a crisis situation.

• 한국의류학회지
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• 제38권4호
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• pp.455-466
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• 2014

This study examines the effectiveness of CSR through the expectancy disconfirmation theory. The change of CSR belief after a corporate social irresponsibility (CSIR) crisis was investigated in terms of activity timing (proactive activities before CSIR crisis/reactive activities after CSIR crisis). Study 1 explores the influence of CSR belief perceptions formed through usual CSR activities on CSR belief decline after a CSIR crisis and the moderating effect of CSR activity types. Higher CSR belief perceptions are formed through usual CSR activities that result in a large CSR belief decline. The moderating effect of CSR activity types on CSR belief decline is found. Volunteer activity has the strongest depending effect on CSIR crisis. Study 2 explores the influence of CSR belief perceptions formed through CSIR crisis on a CSR belief incline after CSR activities and the moderating effect of CSR activity types. The lower CSR belief perception after CSIR crisis results in a high CSR belief incline after CSR activities. The moderating effect of CSR activity types on CSR belief incline is found. Cause-related marketing has the strongest overcoming effect on a CSIR crisis.

• 경영정보학연구
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• 제17권1호
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• pp.141-169
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• 2015

전자금융 관련 사고에서는 개인정보 유출이 가장 많이 일어나고 있으며 개인정보 유출로 인한 보이스피싱 등의 2차 피해가 일어나 사회적으로 막대한 손실을 가져와 문제가 되고 있다. 본 연구는 대량의 개인정보 유출 시 금융정보보안 위험을 효과적으로 낮추기 위한 방안을 사전대응 사후대응 개인정보 유출자 관점으로 나누어 살펴보았다. 구체적인 연구모형은 금융정보보안 컴플라이언스가 금융기관 및 금융당국의 위기대응에 영향을 미치고 이러한 위기대응 활동은 금융정보보안 신뢰에 영향을 미친다는 것이다. 실증연구를 위해 개인금융정보 유출 경험이 있는 사람들을 대상으로 설문지를 배포하였고 총 103부의 설문지를 회수하여 분석하였다. 실증분석 결과, 금융정보보안 컴플라이언스는 금융당국에 더 큰 영향을 미치는 것으로 나타났고, 금융기관 위기대응과 금융당국 위기대응은 금융정보보안 신뢰에 영향을 미치는 것으로 나타났다. 조절효과 분석에서 개인금융정보 중요도는 금융기관 위기대응이 금융정보보안 신뢰에 미치는 영향을 조절하는 것으로 나타났고, 개인금융정보 유출수준은 금융당국 위기대응이 금융정보보안 신뢰에 미치는 영향을 조절하는 것으로 나타났다. 이러한 분석이 시사하는 바는 다음과 같다. 첫째, 컴플라이언스에 대한 관리 감독을 철저히 할 필요가 있다. 금융당국은 금융기관이 금융정보보안컴플라이언스를 준수하고 있는 지에 대한 관리 감독을 철저히 하고, 정부부처 별로 흩어져있는 대응체계를 효과적으로 컨트롤할 수 있어야 한다. 둘째, 금융기관은 전자금융 정보보안 신뢰를 위해서 돌발적인 보안사고에 대처할 수 있는 능력을 갖추고 고객정보 관리에 대한 컨트롤타워를 마련하여 계열사에게 분산공유되는 정보를 통합관리할 필요가 있다. 셋째, 이용자 금융정보의 중요도와 유출수준이 높은 집단이 금융정보보안 신뢰회복 수준이 낮게 나타났다. 따라서 정보보안 위기상황 시에 맞춤대응 전략을 개발하여 대응함으로써 금융정보보안 신뢰를 효과적으로 회복할 수 있다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 1998년도 21세기 한반도 농업전망과 대책(한국작물학회.한국육종학회 공동주관 심포지움 회보)
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• pp.336-352
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• 1998

The horticultural seed industry has made great progress in the last fifty years of its history after the independence of this country. The industry has accomplished self-sufficiency in major vegetable seeds and has even gained international competitive edge in certain crop seeds, particularly in hybrid cultivar development. However, the industry is facing a crisis at present coming from excessive competition among the domestic seed companies as well as the foreign currency crisis of the country. Several major seed companies have already been acquired by multinational corporations. Many people in the country as well as agriculturists are concerned about this situation. Although it is true that the industry is undergoing hard times, this crisis can be turned into a chance for making new progress depending on the joint efforts of the groups responsible, i.e., private companies, public institutions, and policy makers. Therefore, we have to turn this crisis into an opportunity for self-reform and progress. We should not be discouraged or give up. We Propose some ideas for the Progress of the seed industry. Public institutions and policy makers should do such things in cooperation as 1) training human resources for future breeders, 2) securing a wide range of genetic resources and improvement of the management system, 3) basic science research including biotechnology, 4) releasing breeding stocks from germplasm enhancement through use of exotic accessions, 5) support for breeding region- or use-specific cultivars, and 6) collection of foreign agricultural information for breeding cultivars for overseas markets. Eventually the responsible group for the final development of commercial cultivars, production, sales and management is private companies. Therefore, private companies also should have to do their best to develop competitive cultivars with a missionary spirit and endeavor for both domestic and overseas markets in cooperation with public institutions. Management based on competition, professionalism and rationalism is also urged. We are going to conclude with optimism that we can make a new vault of progress once the private and public sectors closely cooperate for the development of Korean horticultural seed industry by overcoming this crisis.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.382-388
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• 2011

Being aware of the risk in advance necessitates intricate processes but is feasible. Although previous studies have demonstrated high accuracy, their performance still leaves room for improvement. A self-organizing feature map (SOM) based neurofuzzy model is developed in this study to provide another alternative for forecasting corporate financial distress. The model is designed to yield high prediction accuracy, as well as reference rules for evaluating corporate financial status. As a database, the study collects all financial reports from listed construction companies during the latest decade, resulting in over 1000 effective samples. The proportion of "failed" and "non-failed" companies is approximately 1:2. Each financial report is comprised of 25 ratios which are set as the input variable s. The proposed model integrates the concepts of pattern classification, fuzzy modeling and SOM-based optimization to predict corporate financial distress. The results exhibit a high accuracy rate at 85.1%. This model outperforms previous tools. A total of 97 rules are extracted from the proposed model which can be also used as reference for construction practitioners. Users may easily identify their corporate financial status by using these rules.

• 한국방재안전학회논문집
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• 제9권2호
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• pp.1-7
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• 2016

'경보'란 급작스러운 사고나 재해 따위가 예상되는 상황에서 이에 대한 대비를 하도록 미리 알리는 일 또는 신호를 말한다. 다시 말해서 경보의 목적은 재난 혹은 사고가 일어나기 전에 국민이나 대응자에게 미리 준비하여 신속하게 대처하기 위한 것이다. 본 논문은 경보의 정의와 국내 외 경보체계의 사례를 통해 경보체계의 요건을 도출하였다. 경보대상자에게 상황변화에 따라 신속하게 대처하기 위해서, 본 논문에서 도출한 경보체계의 요건은 1) 경보대상자 명확화, 2) 신속한 대처를 할 수 있도록 경보단계에 대한 명확한 용어 사용, 3) 경보단계들간의 명확한 구별성 등이다. 논문에서는 이 요건에 따라 우리나라 국가위기경보체계에 대한 문제점을 도출하여 개선방향을 제시하였다.

• 디지털융복합연구
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• 제20권5호
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• pp.239-251
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• 2022

본 연구는 국가적 위기·위험 상황에서 대중(大衆) 위기 커뮤니케이션과 심정 영향력 및 행동의도 간 구조적 관계를 파악하고자 하였다. 선행연구와 실증연구로 진행된 결과를 바탕으로 위기·위협 유형, 위기·위협 반응, 심정(위기·위험 책임성, 전략적 위기·위험 반성적 반응), 행동의도의 나타난 결과를 바탕으로 관광목적지로서 관광지에 방문한 관광객을 대상으로 관광목적지에서의 위기·위험 커뮤니케이션과 한국인의 고유한 정서 중 하나인 심정(心情)인 (위기·위험책임성, 전략적 반응, 위기·위험 반성적 반응) 간의 관계는 물론 결과변수인 행동의도간의 관계를 파악하였다. 제시한 연구목적을 달성하기 위해 각각의 연구개념에 대해 이론연구를 하였다. 이를 바탕으로 설문지를 도출 후 실증연구를 병행하였다. 가설 3개를 설정하였으며 가설 결과에 따라서 유의미한 결과를 확인하였고 기위험 상황이 발생하면 정부, 사업체, 지역사회가 적극적으로 대응하고 대처하는 문제가 위기·위험의 문제를 상쇄시킬 수 있는 기회로 삼을 것이다.