• 상하수도학회지
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• 제29권1호
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• pp.97-106
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• 2015

A CCTV inspection method has been widely used to assess sewer condition and performance, but Korea lacks a proper decision support system for prioritizing sewer repair and rehabilitation (R&R). The objective of this paper is to introduce the results that we have developed in the Sewer Condition Assessment and Rehabilitation Decision-making (SCARD) Program using MS-EXCEL. The SCARD-Program is based on a standardized defect score for sewer structural and hydraulic assessment. Priorities are ranked based on risk scores, which are calculated by multiplying the sewer severity scores by the environmental impacts. This program is composed of three parts, which are decision-making for sewer condition and performance assessment, decision-making for sewer R&R priority assessment, and decision-making for optimal budget allocation. The SCARD-Program is useful for decision-makers, as it enables them to assess the sewer condition and to prioritize sewer R&R within the limited annual budget. In the future, this program logic will applied to the GIS-based sewer asset management system in local governments.

• 한국항해항만학회지
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• 제36권10호
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• pp.857-864
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• 2012

국내 해상 위험 위해물질(HNS)에 대한 해상물동량과 해양사고의 통계적 분석을 통하여 해역 및 위험분야 별 위험도를 조사한 결과 울산항, 여수항, 대산항 순으로 위험 유해물질에 의한 화재위험, 건강위험, 환경위험이 높게 평가되었다. 국내 HNS 사고 대응태세에 대한 조사, 분석을 통해서 폭발위험, 화재위험, 생리적 위험에 취약한 실정을 파악하고 전문 방제자원의 확충 필요성을 제시하였다. 또한 일본의 방제자원 및 배치 현황을 비교 분석하여 해상 위험 위해물질 유출사고 특성에 선순환적으로 대응하고 평가된 위험도를 저감하기 위한 방제자원의 규모와 종류를 설정하였다. 평가된 위험도를 기반으로 국내 해역에서 HNS 사고 대비 대응을 위한 남해, 서해, 동해 3곳의 거점기지와 인천을 비롯한 9곳의 일반기지를 제안하고 거점기지와 일반지지의 HNS 방제자원 모델을 설계하였다.

• Journal of Chest Surgery
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• 제57권2호
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• pp.217-219
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• 2024

Matching for the rhesus (Rh) blood group is currently not taken into account in the organ allocation system. However, in Rh-mismatched transplantation, the primary concern is the potential for RhD-negative recipients to develop sensitization and produce anti-D antibodies if they receive a transfusion of RhD-positive blood. It is estimated that over 80% of RhD-negative recipients may experience Rh allosensitization when exposed to RhD-positive blood, although this occurrence is less common in recipients of solid organs. In theory, RhD-negative recipients who receive organs from RhD-positive donors are at risk of alloimmunization and the production of anti-D antibodies, which could complicate future blood product transfusions. However, our understanding of the impact of donor-recipient Rh mismatch on transplant outcomes, particularly in heart transplantation, is limited. We report a case of successful Rh-mismatched heart transplantation, which was effectively managed through the use of preoperative RhD immunoglobulin and plasmapheresis.

• 무역상무연구
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• 제49권
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• pp.43-59
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• 2011

Incoterms 2010 have been revised in line with the latest changes in contemporary commercial practice. An understanding of Incoterms 2010 is essential. The Incoterms rules on the use of domestic and international trade terms, facilitate the conduct of global trade. Reference to an Incoterms 2010 rule in a sale contract clearly defines the parties' respective obligations and reduces the risk of legal complications. In 1980 the United Nations Convention on Contracts for the International Sale of Goods(CISG) was introduced to create international certainty and uniformity in the law and to govern issues that arise in an international sale of goods transaction. This paper focuses on harmony and ability of the CISG and Incoterms 2010 to govern contracts for the sale of goods.

• Asian Journal of Innovation and Policy
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• 제12권3호
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• pp.345-362
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• 2023

As the widespread adoption and proliferation of electric vehicles continue, the secondary battery market is experiencing rapid growth. However, lithium-ion batteries, which constitute a majority of secondary batteries, present high risks of fire and explosion. Solid-state batteries are thus garnering attention as the next-generation batteries since they eliminate fire hazards and significantly reduce the risk of explosions. Against this background, the study aimed to analyze research trends and provide insights by examining 2,927 domestic papers related to solid-state batteries over the past decade (2013-2022). Specifically, we used topic modeling to extract major keywords associated with solid-state batteries research and to explore the network characteristics across major topics. The changes in research on solid-state batteries were analyzed in-depth by calculating topic dominance by year. The findings provide an overview of the emerging trends in domestic solid-state battery research, and might serve as a valuable reference in shaping long-term research directions.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2015년도 추계 학술논문 발표대회
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• pp.68-69
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• 2015

Traditional External Insulation Finishing System(EIFS) is applied to apartment construction by performing structural framework and insulation finishing work sequentially. Separate execution of the three works increases construction cost and duration. Concurrent construction method of EIFS, which performs framework and insulation finishing work simultaneously, is introduced in order to solve these problems. However, the introduced method is exposed to the risk of construction delay caused by bottlenecks due to interacting processes and resources. Therefore, this paper presents a simulation model suitable for estimating work productivity of the concurrent construction by considering predecessor and successor processes to optimize resource allocation and minimize construction delay.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2003년도 추계학술대회
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• pp.113-116
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• 2003

In the recent environment of globalization where fierce competitions exist between manufacturers, SRM(Supplier Relationship Management) plays important role in the strategies of companies, and managements of companies try their best efforts in establishing the strategy to accomplish the innovative relationship between supply chain channels. The structure of the partnerships we develop with not only customers but also suppliers will in many cases determine the degree of success of the relationship. A successful partnership provides an opportunity for shared risk while maximizing the opportunity for mutual success whether it's with supplier. To follow this paper show how SLV(Supplier Lifetime Value) can be used to structure the supplier in automotive part manufacturer, This method of selection is described, and a detailed example of how SLY can be used and allocation of order quantity for the selected suppliers also are provided.

• 대한물리의학회지
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• 제15권4호
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• pp.11-20
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• 2020

PURPOSE: This study examined the effects of Nordic walking on depression and the physical function of elderly patients with a high risk of depression. METHODS: This study was a blinded randomized allocation study; 32 elderly were assigned to a Nordic walking group (n = 17), consisting of 60 min Nordic walking (including warming up 5 min, warming down 5 min, and Nordic walking 50 min) two days per week for 12 weeks and general leisure group (n = 15), consisting of 60 min leisure program community center. The pre and post 12-week program, depression test, muscle strength (including grip test, and 30sec sit to stand), and balance (including Functional Reach test, and One Leg Standing test) were measured. A Mann-Whitney U test was used to compare within the group, and a Wilcoxon signed-rank test was used to compare between the groups. RESULTS: After 12 weeks, only the Nordic walking group showed significant improvement in depression, muscle strength, and balance (p < .05). In the general leisure group, however, the left grip strength and Functional Reach Test (FRT) showed a significant decrease. The Nordic walking program was better than the general leisure group, and a significant difference was observed in depression, muscle strength, and balance between the two groups (p < .05). CONCLUSION: Nordic walking was effective for the elderly with a high risk of depression. Therefore, Nordic walking may be an option for preventing elderly mental disorders and functional improvement.

• Communications for Statistical Applications and Methods
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• 제24권5호
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• pp.507-518
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• 2017

Volatility plays a crucial role in theory and applications of asset pricing, optimal portfolio allocation, and risk management. This paper proposes a combined model of autoregressive moving average (ARFIMA), generalized autoregressive conditional heteroscedasticity (GRACH), and skewed-t error distribution to accommodate important features of volatility data; long memory, heteroscedasticity, and asymmetric error distribution. A fully Bayesian approach is proposed to estimate the parameters of the model simultaneously, which yields parameter estimates satisfying necessary constraints in the model. The approach can be easily implemented using a free and user-friendly software JAGS to generate Markov chain Monte Carlo samples from the joint posterior distribution of the parameters. The method is illustrated by using a daily volatility index from Chicago Board Options Exchange (CBOE). JAGS codes for model specification is provided in the Appendix.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2020년도 추계학술대회
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• pp.68-69
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• 2020

해상에서는 선박의 안전한 항해를 위해 각종 항로 표지가 이용되는데, 과학 기술이 발전함에 따라 환경적 요소 등의 이유로 항로표지를 설지 할 수 없는 지역에서는 가상항로 표지를 필요로 하고 있다. 선행연구에서는 가상항로 표지의 최적 배치를 위해 선박 항해의 물리적 항해 제한 및 항해 장애물요소, 선박 교통 위험도 등을 격자 단위로 파악하였다. 이에 본 연구는 격자별로 나눈 해역의 위험도 지수를 통합하여 통합 위험도 평가 지수를 개발하고자 한다. 이에 요소별 가중치를 설정하고, 레이어를 통합한 뒤 위험도를 산정하여 통계데이터 기반 위험도를 평가하였다. 요소별 가중치 설정을 위해 위험도 레이어 통합 가중치를 설정하였으며, 실제 해역에 적용하여 위험도를 평가하였다.