• Economic and Environmental Geology
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• v.54 no.4
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• pp.475-482
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• 2021

This study proposed a strategy with literature review on effective monitoring of dispersion of the particulate matters (PM) emitted from domestic open pit lime mines. The mines generally produced a large amount of PM through the mine processes such as crushing and transportation of raw or crushed ores. The PM emission from mine facilities or transportation can be assessed using empirical equations which was prepared through the experimental tests to produce PM from ores. For effective monitoring of mine PM dispersion, this study showed a preliminary application of the monitoring network with multiple low-cost sensors around a main PM emission source for each mine site. Therefore, two domestic limestone mine sites were selected for this study, and install the monitoring network with low-cost PM sensors and LTE (Long-term evolution) data communication. Then, preliminary resultant PM data plotted according to monitoring duration showed typical PM dispersion patterns. The quantification of the PM dispersion patterns should be roughly prepared by a PM size-dependent dispersion modeling.

• Journal of the Korean Society of Marine Environment & Safety
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• v.25 no.5
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• pp.511-518
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• 2019

This study aimed to extract the priority safety improvement factors for coastal passenger ships and analyze the perception gap between groups. To extract the improvement factors, we formed an expert group with maritime safety supervisors, passenger-ship safety inspectors (PSIs), and captains of passenger ships, and then conducted a Delphi survey. We found, using a hierarchy process, that the improvement factors were divided into three factors in Level 1 and ten factors in Level 2. For the relative importance analysis using the AHP (Analytic Hierarchy Process) model, we also formed two groups: an inspector group with maritime safety supervisors and PSIs, and an examinee group with safety managers, captains, and crews. Consequently, the factors of designation of public transportation for passenger ships and supporting the welfare of the crew were evaluated as the most important among the extracted factors. We conducted a t-test for the analysis of the perception gap between the two groups. Three perception gaps were found: increasing the inspection personnel, strengthening the qualification of the inspection personnel, and expanding the safety operation center. The result of this study will be useful for improving the safety policy of coastal passenger ships.

• Journal of Korea Port Economic Association
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• v.36 no.3
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• pp.55-74
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• 2020

With globalization and the development of information and communication technology, the supply chain is becoming more widespread and complex, which increases the occurrence and damage caused by supply chain risks. Supply chain risk management has a great impact on corporate performance through the analysis of risk factors and proactive and strategic approaches. This study aims to analyze the effects of supply chain risk factors on risk management strategies and corporate performance empirically. In the research model for empirical analysis, supply chain risk factors were classified into supply, demand, operation, network, and external environment, while the risk management strategies were divided into active and passive strategies, as well as financial and operational performance for corporate performance. The data obtained via the questionnaire were analyzed for the path of the structural equation model. As a result of the analysis, companies are actively pursuing risk management for internal risk factors, rather than external factors, in terms of internal and external risk factors, and it was found that these strategies have a significant effect on corporate performance. Therefore, in the future, companies should conduct risk management strategies more proactively and preemptively through a thorough analysis of various risk factors affecting business operations.

• Journal of the Korean Society of Marine Environment & Safety
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• v.23 no.6
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• pp.646-651
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• 2017

The purpose of this study is to design a proper evaluation method for analysing the safety management efficiency of coastal ship companies, and to verify these evaluation standards by applying them to a representative company. For this purpose, 5 evaluation items and 14 specific sub-evaluation elements have been determined after collecting practical opinions from a group of expert, which consisted of safety managers in passenger ship companies, public servants as a ship inspector, passenger ship operations managers, etc. Next, the safety management levels of 44 coastal passenger ship companies were evaluated using these standards. Finally, the validity of the proposed evaluation method was verified through comparison analysis between the evaluation results and the ratio of major marine accidents. It was determined that companies with low evaluation levels were saw more major marine accidents than other coastal passenger ship companies, spurring greater interest in safety management. In conclusion, evaluation standards allow coastal passenger ship companies to voluntarily assess their safety management level were established. The result can also be applied to analyse the operation efficiency of coastal passenger ship companies.

• Journal of the Korean Society of Marine Environment & Safety
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• v.27 no.2
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• pp.228-237
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• 2021

In those day, the Busan local government had instituted a rule to support and enhance competition as well as improve respect for the ship management industry. This study aims to extract the cause factors to enhance such competition using intuitionistic decision making trial and evaluation laboratory (DEMATEL) and interpretive structural modeling (ISM) methods. First, eight factors were extracted from the specifications in the Ship Management Industry Development Act. Second, the intuitionistic fuzzy number was converted to a crisp number using the standard fuzzy number. Third, the influence relationship was analyzed using DEMATEL, and the priority ranks for the factors are determined using ISM. From the results of the impact relationship analysis, the three main cause factors were determined as improvement of technical ship management capability, improvement of expertise of manpower for onshore management, and improvement of the quality of the Korean seafarer. The priorities under the ISM method, in descending order, were as follows: improvement of the quality of Korean seafarers, improvement of professionalism among the manpower for shore management, improvement of technical ship management capability, improvement of commercial ship management capability, establishment of a comprehensive information system, improvement of the working conditions and employment environment for seafarers, financial support such as overseas orders, and strengthening the availability of foreign seafarers. Therefore, it is necessary to prioritize policy promotion based on these factors, especially the top three, as these have the highest impact.

• Korean journal of food and cookery science
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• v.16 no.3
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• pp.232-244
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• 2000

Domestic market of mass catering establishments has been increased greatly since early 90's with the emergence of professional mass catering business and the expansion of school food service. Because of the characteristics of mass catering establishment, feeding many people at a time, there is always a high potential of foodborne outbreak which requires special sanitary management to prevent. Large-scale outbreaks occurred last few years in Korea revealed the necessity of establishing strong safety measures for the sanitary management of mass catering establishments. Currently, many catering businesses are interested in Hazard Analysis Critical Control Points(HACCP), a new sanitary management system, and are trying to implement HACCP for their food services. Korean government is also undertaking model projects for mass catering establishments. Accordingly, numerous efforts are being given to dove op HACCP plans by the academia and industry, however, there has been no report on generic HACCP model which can be used directly for mass catering establishments dealing with numerous menus. Therefore, this study suggested a methodology to develop HACCP plans for domestic mass catering establishments and a generic HACCP model which can be applied to most Korean mass catering establishments hoping to implement HACCP system.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.401-404
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• 2008

Bridges are exposed to very severe environment and experience, as service life increased, elevated traffic load and traffic flow, in addition to natural disasters. In comparing to other road structures, bridges may cause more significant damage, such as human-involved accidents, to the society in the event of collapse. A certain level of service shall be necessarily secured to assure the minimum safety of users. The cost for manage and preserve bridges will increase gradually and more restrictions will be loaded to efficiently distribute the limited resources, such as monetary budget and human resource etc. In order to enhance performance and serviceability of bridges with the limited resource, asset management technique has been applied into the bridge management system, which capitalizes the road infrastructures including bridges and assess them in accordance with the government finance report. In the application of asset management, there must be a tool for assess the performance of bridges and this study introduces the basic information on the definition and role of performance measures for asset management for bridges.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.650-653
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• 2009

Decrease in crew performance is frequently cited as a major causal factor in maritime accidents. Although considerable researches on working hours undertaken by seafarers have been conducted through interviews and record analyses, experimental studies on the effects of factors, such as high workload, shift patterns, stress, sleep deprivation, and disturbance on the cognitive performance of mariners have been limited. Other safety-critical transport industries, such as aviation and rail, have developed fatigue management tools to help managements in the work patterns of their operators. Such tools for mariners would assist shipboard crews, marine pilots, and shore managers for planning and improving work schedules. The overall aim of this paper is to determine a fatigue factor that can be applied to human performance data as a part of a software program that calculates total cognitive performance. This program enables us to establish the levels of cognitive performance in a group of marine pilots in order to test a decision-making task based on radar information. This paper addresses one of the factors that may contribute to the determination of various fatigue factors: the effects of different work patterns on the cognitive performance of a marine pilot.

• 한국벤처창업학회:학술대회논문집
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• 2017.04a
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• pp.62-62
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• 2017

최근 인공지능 시대 및 제 4차 산업 혁명 시대의 도래로 제품 간, 제품과 서비스 간, 서비스 간 산업이 다양한 형태로 진화 중이며, 이종기술 산업 간의 융 복합화로 새로운 제3의 신산업이 등장하고 있다. 또한 소위 말하는 O2O(Online to Offline)는 이미 운송, 금융(핀테크), 자동차(카테크), 숙박, 음식, 의료(헬스케어테크) 등 많은 산업 분야에 진출, 기존 전통 산업과 충돌, 인허가에 어려움을 겪고 있으며 이러한 O2O는 IOT(사물인터넷)로 급속도로 가속화 되고 있다. 이렇듯 4차 산업 혁명에 따른 신산업의 탄생은 산업의 경계를 붕괴하고 있음에도 산업별로 구분된 제도, 규제, 지원정책 등은 여전히 신산업 창업의 장애가 되고 있다. 이에, 본 연구에서는 국내 벤처특별법, 창업지원법, 1인 창조기업법 내 투자 지원 업종과 미국을 비롯한 해외 창업 관련법 내 창업 지원 제한 업종과의 비교 분석, 몇 가지 중요한 시사점을 도출했다. 먼저, 우리나라가 선진국에 비해 지나치게 투자 제한 업종이 많음을 확인했다. 또한 선진국은 미풍양속을 해치는 업종, 투기적 사업 등 사회통념상 문제가 되는 사행성 업종을 제외하고는 대다수의 업종이 정책 지원 대상이다. 업종과 더불어 투자 행위로 투자 심사를 해 신산업 투자에 매우 탄력적으로 운영할 수 있게 설계되어 있다. 심지어 미국의 경우, 적극적 창업 투자를 위해 업종 및 투자 행위에 대한 심의를 중소기업청이 직접 수행한다. 특히, 우리나라의 중소기업창업투자회사제도는 미국의 중소기업투자회사(SBIC) 제도와 유사한 반면 투자 제한 업종 뿐 아니라 제도 운영 특히, 창업투자회사에 대한 관리 측면에서 매우 큰 차이가 있음을 보여주고 있다. 우리나라 중기청은 간접관리를 하는 반면, 미국은 중기청 내에서 직접 관리를 하고 있다. 따라서 본 연구에서는 우리나라 창업 벤처 투자 제한을 미국을 비롯한 기타 외국의 사례에서와 같이 사회통념상 불가피한 업종과 더불어 투자 행위로 정의하길 제안한다.

• 한국경호경비학회:학술대회논문집
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• 2008.11a
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• pp.63-82
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• 2008

지난 10여 년 동안 대만사회의 가장 큰 변화 중 하나는 '개인 경비', 혹은 '개인 경호' 사업이 크게 발달했다는 것이다. 민간의 역량과 과학화된 설비로써 재산보호와 신변보호를 하고자 하는 개인 경비에는 여러 방식이 있다. 예를 들어 개인안전 경비(즉, 수행경호), 현금운송 경비, 주거경비, 상공업경비(여기에는 공장지대의 안전한 보호와 백화점, 금융기관, 보석상점 및 편의점 등의 경비가 포함됨), 그리고 각종 경비장치의 설치 등이 있다. 천징훼이(陳靜慧, 2006)는 대만의 경비 산업 경영형태에 대해 아래와 같이 분석하였다. 그의 주장에 따르면, 대만의 경비 산업은 일반 업무 위주로 하고 있으며, 여기에는 시스템 경비, 상근 경비, 현금 경비, 신변 경비가 있다고 밝혔다. 이 일반 업무는 일본, 미국, 독일의 형태와 유사하다. 그러나 미국과 독일의 경비회사들은 특수한 업무를 담당하고 있다. 미국의 경우 무장경비 현금수송, 신용조사 업무, 보험조사 업무, 거짓말 탐지 업무를 수행한다. 독일의 특수 업무에는 군대설비 경비, 교통지휘 및 질서 유지, 신속 고발 경비, 그리고 교도소 경비가 있다. 량신쩐(梁心禎, 2006)은 대만의 경비 산업 발전의 흐름에 대해 다음 세 단계로 구분했다. 제1단계는 1978년부터 1987년까지로 이 시기 대만은 일본 경비 사업 발전의 영향을 수용했기 때문에 일본의 경비사업 관리방식과 시스템 설비를 받아들여 점차 대만 방식의 경비 형태로 발전시켜 나갔다. 초기 발전단계의 경영방식은 주로 외국 기술과의 협력을 통한 시스템 경비가 주를 이루었다. 제2단계는 1988년부터 1997년까지인데, 이 시기에 이르러 경비 사업은 비인기 사업에서 인기 사업으로 시장이 확대되었고, 해외업체와의 활발한 기술 교류, 새로운 브랜드 개발과 경비 경영 방식의 혁신, 그리고 상근 경비와 수행경호와 같은 경비 관련 항목의 확장을 이루었다. 또한 이 시기에 수많은 경비회사들이 세워져 새로운 경쟁시대로 돌입하였다. 제3단계는 1998년부터 현재까지로 이전의 전통적인 건물경비 방식에서 경비와 부동산 관리 서비스를 함께하는 방식으로 경영 형태가 바뀌었고 전반적인 서비스 품질을 중시하기 시작하였다. 따라서 경비 사업자는 아파트 및 빌딩관리 보호 회사를 설립하여 이를 공동 경영하였으며, 전문적이고 종합적인 단계로 들어섰다. 대만 경비 교육제도의 설립과 제도화된 면허증 시스템 구축은 아직 초보적인 단계로써 여전히 이 두 방면의 발전을 강화시켜야 하는데, 교육과 심사를 시행하여 경비원의 소질을 향상시켜야 할 것이다. 경비사업자는 과학기술적인 통제 시스템을 받아들여 인건비를 낮추고 서비스의 범위와 품질을 향상시켜야 한다. 또한 각 지방의 노동조합은 정부가 법령을 개정하여 경비원의 자격제한과 업무를 보장해주도록 건의해야만 경호원의 대우와 이미지가 개선될 수 있다. 아울러 국제학술교류의 확대와 경비 관련 산업에 대한 토론회와 전시회를 자주 개최하여 새로운 지식을 습득해야 한다.