• 무역학회지
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• 제47권2호
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• pp.121-132
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• 2022

This study aims to find out the ESG management keywords in the logistics industry through social network analysis using news article and sustainable management reports. In recent years, global climate change and Covid-19 have spurred companies to step up their new management system called ESG management. ESG is a combination of Environment, Social, and Governance. In the past, companies' financial performance was the most important, but in the current investment market, the movement to reflect ESG management factors in investment decisions is strengthening. This study aims to find out degree centrality, betweenness centrality, and closeness centrality through social network analysis after collecting related keywords to derive ESG management issues of logistics companies. This study collected 2,359 news articles searched under the keywords "ESG", "Logistics". In addition, data on ESG activities were also used for analysis by referring to the sustainable management reports of logistics companies. As a result of the analysis of degree centrality, it was found that ESG management of logistics companies is in progress, focusing on small enterprises and eco-friendly keywords, and is concentrated on social responsibility and eco-friendly activities. In the betweenness centrality analysis, logistics companies such as HMM and CJ Logistics were derived in a high ranking. In the closeness centrality analysis, eco-friendly keywords topped the list, while the number of keywords related to governance was relatively small, suggesting that logistics companies need to improve their governance structure.

• 정보보호학회논문지
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• 제34권1호
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• pp.53-60
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• 2024

안전한 네트워크를 위해 보안 평가는 필수불가결한 과정으로, 위험을 관리하기 위해서는 적절한 성능지표가 있어야 한다. 가장 널리 사용하고 있는 정량적 지표로는 CVSS가 있다. CVSS는 주관성과 해석의 복잡성, 보안 위험의 관점에서 맥락을 고려하지 못한다는 문제가 있다. 이러한 문제를 보완하기 위해 ISO/IEC 15408 문서의 보안 개념 및 관계도를 바탕으로 공격자, 위협, 대응, 자산의 4가지를 항목화하고 수치화 하는 지표를 제안한다. 네트워크 스캐닝을 통해 발견된 취약점은 약점, 공격패턴의 연결관계에 의해 MITRE ATT&CK의 기술과 매핑시킬 수 있다. 우리는 MITRE ATT&CK 의 Groups, Tactic, Mitigations을 이용하여 일관성을 가지며 직관적인 점수를 산출한다. 이에 따라 보안 평가 관리자가 다양한 관점의 보안지표 중 선택할 수 있는 폭을 넓히고, 사이버 네트워크의 보안을 강화하는데 긍정적인 영향을 기대한다.

• 한국시스템다이내믹스연구
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• 제14권1호
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• pp.5-29
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• 2013

This study tries to measure the direct and indirect effects of the Regional Strategic Industry (RSI) promotion projects in Chungbuk Province in Korea. In specific, it critically examines whether there exists policy consistency and connectivity between the hardware-oriented Stage I (2002~2007) and the software-centered Stage II (2008~2012) RSI promotion projects. Applying System Dynamics (SD) techniques, this study examines complex system characteristics of RSI promotion projects, all of which have been derived from the causal and stock-flow models and their simulated results. Major findings are as follows: Firstly, 'the continuous investment' is regarded as the most crucial policy leverage for the strategic industry promotion and regional economic growth. Secondly, without exceptions, the RSI promotion projects should switch their evaluation criteria to performance-oriented ones. Thirdly, in selecting their subprojects, the RSI promotion projects should pay due attention to evaluating technology value and marketability. Fourthly, it should put policy priority in strengthening cluster networking and interconnectivity among projects, inevitably supporting a selective number of virtuous network systems. Fifthly, auxiliary projects such as marketing, technology aid, and knowledge-based services should not be overlooked.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2009년도 추계학술대회 논문집
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• pp.339-341
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• 2009

개별세대 내 정보통신기기 및 홈네트워크 장비증가로 인하여 서지보호장치(SPD : Surge Protective Device)가 설치되고 있고 산업규격개정 및 등전위 접지시스템 강화에 따라 서지보호기 사용량은 점진적으로 증가하고 있다. 주택용 분전반에 설치되는 서지보호기의 부품은 전압제한형 소자인 $Z_nO$배리스터가 사용되고 있으나 일시적 과전압특성 (Temporary Overvoltage Characteristic) 위험에 노출되어있다. 본 논문은 일반주택에 사용되는 서지보호기의 열적 안전성 (Thermal Stability) 특성시험을 통하여 제품을 분석하였고 이를 토대로 개선안을 제시하였다. 분석결과 누설전류를 차단하기위한 가스 방전관(GDT) 사용 및 열폭주(Thermal Runaway) 현상을 막기 위한 안전장치가 2종 이상 필요하였다.

• Computers and Concrete
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• 제8권5호
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• pp.597-616
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• 2011

With respect to rehabilitation, strengthening and retrofitting of existing and deteriorated columns in buildings and bridges, CFRP sheets have been found effective in enhancing the performance of existing RC columns by wrapping and bonding CFRP sheets externally around the concrete. Concrete columns and piers that are confined by both lateral steel reinforcement and CFRP are sometimes referred to as "hybrid" concrete columns. With the availability of experimental data on concrete columns confined by steel reinforcement and/or CFRP, the study presents modeling using artificial neural networks (ANNs) to predict the compressive strength of hybrid circular RC columns. The prediction of the ultimate confined compressive strength of RC columns is very important especially when this value is used in estimating the capacity of structures. The present ANN model used as parameters for the confining materials the lateral steel ratio (${\rho}_s$) and the FRP volumetric ratio (${\rho}_{FRP}$). The model gave good predictions for three types of confined columns: (a) columns confined with steel reinforcement only, (b) CFRP confined columns, and (c) hybrid columns confined by both steel and CFRP. The model may be used for predicting the compressive strength of existing circular RC columns confined with steel only that will be strengthened or retrofitted using CFRP.

• 한국항행학회논문지
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• 제13권1호
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• pp.120-125
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• 2009

첨단 산업기술의 보호를 통한 국제경쟁력 강화를 위해서는 국내 산업보안기술의 수준 및 기술경쟁력 등을 분석하고 나아가 개발과제의 발굴 및 지원방안을 수립함으로써, 산업보안기술 개발역량 강화 및 국제경쟁력 제고를 위한 정책수립이 필수적이다. 본 연구에서는 산업보안 기술의 전반적 동향 및 현황을 조사 및 분석하고, 급증하는 첨단 산업기술의 유출사고 예방 및 보안기술의 향상을 위해 기술적 보안 기술의 현재 수준분석과 국가적 차원의 산업보안 개발과제 도출을 진행하였다.

• 한국비블리아학회지
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• 제21권2호
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• pp.39-56
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• 2010

이 연구는 공공도서관 청소년 프로그램의 현황을 조사하여 문제점을 분석하고 개선 과제를 탐색하였다. 1개 특별시와 6개 광역시의 공공도서관 중 2009년 8월 31부터 9월 4일까지 청소년 프로그램이 실시된 86개관을 대상으로 조사하였다. 이 연구에서는 청소년프로그램을 참여형, 체험형, 강좌형, 콘테스트형, 기관협력형 등 5가지 유형으로 구분하여 각 유형별 특성과 문제점을 분석하였다. 그리고 공공도서관의 청소년 프로그램의 활성화를 저해하는 제반 환경적 문제를 점검하고 발전 방안을 제안하였다.

• Carbon letters
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• 제5권4호
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• pp.159-163
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• 2004

The polymer-ceramic hybrid, known as 'ceramer', was synthesized by a sol-gel process by incorporating different amount of alkoxide as source of silicon in resorcinol-formaldehyde in presence of basic catalyst to get different percentage of silicon in ultimate carbonized composites. FTIR of the ceramer confirms that it is a network of Si-O-Si, Si-O-$CH_2$ and Si-OH type groups linked with benzene ring. Different amount of silicon in the ceramer exhibits varying temperature of thermal stability and lower coefficient of thermal expansion as compared to pure resorcinol-formaldehyde resin. The lower value of CTE in ceramer is due to existence of silica and resorcinol -formaldehyde in co-continuous phase. Unidirectional composites prepared with ceramer matrix and high-strength carbon fibers show lower value of flexural strength at polymer stage as compared to those prepared with resorcinol-formaldehyde resin. However, after heat treatment to $1450^{\circ}C$, the ceramer matrix composites show large improvement in the mechanical properties, i.e. with 7% silicon in the ceramer, the flexural strength is enhanced by 100% and flexural modulus value by 40% as compared to that of pure resorcinol-formaldehyde resin matrix composites.

• 한국콘텐츠학회논문지
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• 제13권11호
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• pp.677-689
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• 2013

본 논문은 해외 성공 사례를 통해 문화산업클러스터의 작동원리 및 성공요인과 관련 평가지표를 도출하고 광주 문화콘텐츠기업의 설문조사와 비교하여 문화산업클러스터 성공적 조성을 위한 정책적 시사점을 제시하였다 본 논문의 정책적 시사점은 성공기업을 리딩기업으로 하는 연계, 클러스터 배후지로서 대도시 인접 조성, 창의적 인재 양성, 벤처자금 운영, 주력업종(게임, 애니메이션, 모바일콘텐츠) 중심으로 문화산업 육성, 적극적인 네트워크 활성화, 비전제시자로서 시와 정보문화산업진흥원의 역할 강화, 기업 유치를 위한 과감한 인센티브 부여를 들 수 있다.

• 한국치위생학회지
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• 제12권1호
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• pp.67-79
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• 2012

Objectives : The study was carried out to find out the experience of musculoskeletal disorder symptoms of dental hygienists and evaluate the risk with ergonomic evaluation method(RULA). Methods : The subjects in this study were 344 dental hygienists working at dental clinics and general hospitals in Seoul, Gyeonggi, Daejeon and Chungnam/Chungbuk. The data were collected through the self-questionnaire survey from July 26th 2010 to September 30th 2010. Results : The results showed that those who working at dental hospital, network dental clinics, with 1-5 years of clinical experience, long working hour and sitting hour, no rest hour, more physical and mental burden had higher rate of the experience of musculoskeletal disorder symptoms compared with other groups. The final score of RULA evaluation results was 6 on average requiring continuous observation and urgent demand for work improvements. According to the result of RULA evaluation by work, the orthodontic clinics were 4.5, prosthodontic clinics were 5.0, and dental surgery clinics were 6.8 being the most risky. Conclusions : The study showed high complaints rate on musculoskeletal disorders in dental hygienists. Thus, various measures including provision of proper working and rest hours, use of ergonomic working equipments, strengthening the health education for desirable working posture and the development of musculoskeletal disorder prevention program should be needed.