• Title/Summary/Keyword: Risk Potential

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Improvement and evaluation of flood control safety utilizing a flood risk map - Yeong-Seomjin River Basin - (홍수위험지도를 활용한 치수안전도 방법 개선 및 평가 - 영·섬진강 유역중심으로 -)

  • Eo, Gyu;Lee, Sung Hyun;Lim In Gyu;Lee, Gyu Won;Kim, Ji Sung
    • Journal of Korea Water Resources Association
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    • v.57 no.1
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    • pp.21-33
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    • 2024
  • Recently, the patterns of climate change-induced disasters have become more diverse and extensive. To develop an effective flood control plan, Korea has incorporated the concept of Potential Flood Damage (PFD) into the Long-Term Comprehensive Water Resources Plan to assess flood risk. However, concerns regarding the PFD have prompted numerous studies. Previous research primarily focused on modifying and augmenting the PFD index or introducing new indices. This study aims to enhance the existing flood control safety evaluation method by utilizing a flood risk map that incorporates risk indices, specifically focusing on the Yeong-Seomjin river basin. The study introduces three main evaluation approaches: risk and potential analysis, PFD and flood management level analysis, and flood control safety evaluation. The proposed improved evaluation method is expected to be instrumental in evaluating various flood control safety measures and formulating flood control plans.

A Study on the Mitigation Polices for the Negative Effect of Nanotehcnology-applied Products Using Conjoint Analysis (컨조인트 분석을 이용한 나노기술 적용제품의 부정적 영향 완화 정책 효과 분석)

  • Bae, Seoung Hun;Shin, Kwang Min;Lim, Jung Sun;Yoon, Jin Seon;Kang, Sang Kyu;Kim, Jun Hyun;Cho, Su Ji;Lee, Ki-Kwang
    • Korean Management Science Review
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    • v.32 no.3
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    • pp.1-12
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    • 2015
  • This study aims to analyze the efficiency of the government policy of Nanotechnology which is expected to minimize nanotechnology's potential risk, using the methodology of conjoint analysis and market share analysis. The attributes of conjoint analysis were divided into potential risk factor and the policy factor. It was found that the policy factor could alleviate the potential risk, subsequently increasing consumers' utility. Additionally, the government certification was more powerful than the mandatory labelling. The market share also increased in result of the nanotechnology-applied product with the certification or labeling either. The result of this study can be used as a reference to related policy makers in the fields of Nanotechnology.

Correlation Between Shoulder Gradient, Range of Motion of the Neck, and Subjective Pain level of the Potential Risk Group of Smart-phone Addiction (스마트폰 중독 잠재위험군의 어깨 기울기, 목 관절가동범위 및 주관적 통증 정도의 상관관계)

  • Jeong, Yeonwoo
    • Journal of The Korean Society of Integrative Medicine
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    • v.5 no.2
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    • pp.83-90
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    • 2017
  • Purpose : The purpose of this study was to investigate the correlation between shoulder gradient, range of motion of the neck, and subjective pain level of the potential risk group of smart-phone addiction. Methods : The subjects of this study were 90 women's who had potential risk of smart-phone addiction. VAS was used to measure subjectively pain intensity. Global Postural System was used to measure forward head posture. CROM was used to measure flexion, extension, lateral flexion of cervical range of motion. Results : The results of this study showed that was significant positive correlation between the both shoulder gradient, and cervical range of motion(p<.05). Statistically significant negative correlation between the VAS and left lateral flexion(p<.05). Conclusions : The difference between the gradient of both shoulders increased with the use of smart-phone addiction, and the cervical left lateral flexion decreased as the pain increased. This suggests that recognition on decrease of using smart phone and postural correction is necessary.

A Study on the Electric Shock due to Submerged Power Source (침수 상용전원에 의한 감전위험성 검토)

  • Jung, Jong-Wook;Jung, Jin-Soo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.21 no.6
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    • pp.71-76
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    • 2007
  • This paper describes a risk assessment of electric shock based on a experiment which demonstrates a submerged commercial power source. For the experiment a water tank was made and an outlet was installed on an interior wall. After filling the tank with a conductive water solution, the electric potential was measured with the distance, the direction from the power source, the conductivity and the level of the water solution. As a result, the potential distribution due to the outlet energized and exposed to the water solution depends on the distance from the submerged power source, however, the direction from the power source, the conductivity and the level of the water solution seemed to scarcely affected on the electrical shock risk.

Identifying Potential Food Source through DNA Barcoding Analysis of Feces from Invasive Slug, Limax maximus (Linnaeus 1758) (Gastropoda: Pulmonata), in Republic of Korea

  • Hong Geun Kim;Kibeom Park;Youngjun Park;Youngho Cho
    • Proceedings of the National Institute of Ecology of the Republic of Korea
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    • v.5 no.3
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    • pp.86-93
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    • 2024
  • Unintentional dispersal of organisms has explosively increased due to expansion of human activities. Among introduced organisms, some organisms are categorized as invasive species because of their effects on environmental risk, economic loss, and human health. In 2023, a leopard slug (Limax maximus) was reported in Suwon, Republic of Korea. This slug was designated as a potential invasive species because a wide range of plant species were identified as food sources for this slug in its original habitats. However, it is difficult to investigate the ecological risk of this newly introduced slug in Republic of Korea. Therefore, the potential ecological risk from this newly introduced slug was estimated by meta-genome analyses of its feces. Through meta-genome analyses, 22 Families, 28 Genera, and 26 Species of land plants were identified. Among these 26 identified plant species, six economically important crops - squash (Cucurbita maxima), tomato (Solanum lycopersicum), potato (Solanum tuberosum), cowpea (Vigna unguiculata), rice (Oryza sativa), and oriental melon (Cucumis melo) - were identified. Therefore, leopard slugs potentially could cause economic losses in Republic of Korea. Further study is required to build a control strategy against leopard slugs.

Measurement and Analysis of the Dangerous Voltage Around Grounding Electrode for Safety in Substation Ground (변전소 접지설계를 위한 접지전극 주변의 위험전압 측정과 분석)

  • Son, Seok-Geum;Kim, Jae-Chul
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.60 no.4
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    • pp.214-219
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    • 2011
  • The substation grounding design,"IEEE Guide for Safety in AC Substation Grounding (ANSI / IEEE Std 80)"has been widely used. Substation grounding design and substation grounding resistance of grounding network site to predict the voltage at the risk of a very important task, which is a ground fault current due to the influx of the ground network and due to rise in the Earth's potential can be applied to human dangerous Voltage within safe tolerances be configured to be the ground because the network. IEEE Std. 80 for the substation construction safety equipment on the ground securing the ground electrode and the mesh around the boundary potential distribution in terms of risk analysis by the touch voltage and the reference was to clean up the definition and the basic steps of the voltage of the voltage limits the risk of peripheral grounding electrode Suppression by the simulator through a new secure from dangerous voltage design techniques were presented.

Cadmium Exposure and Potential Health Risk from Foods in Contaminated Area, Thailand

  • Chunhabundit, Rodjana
    • Toxicological Research
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    • v.32 no.1
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    • pp.65-72
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    • 2016
  • Man-made cadmium (Cd) emissions can be transported between environmental matrices and the food chain. Food is the primary source of Cd exposure among general population as a consequence of the bioconcentration of Cd from soil. Chronic Cd exposure has been reported to be associated with chronic kidney disease, osteoporosis, diabetes, cardiovascular disease and cancer. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) established the safe level of Cd intake as provisional tolerable monthly intake (PTMI) of $25{\mu}g/kg\;bw$ in 2010. The major food groups that contribute to the most Cd exposure are rice and grains, shellfish and sea food, meat including edible offal, and vegetables. A number of studies reported the high Cd contaminated levels in foods from polluted areas in Thailand. The results are of high concern since the contaminations occur in foods that are major Cd contributors. Thus, in this review, the current situations of Cd contaminated foods in polluted areas of Thailand are summarized. In addition, the Cd intakes from selected scenarios are estimated to assess the potential health risk to consumers and the suggestions are also included.

Occupational health hazards in a prosthodontic practice: review of risk factors and management strategies

  • Sivakumar, Indumathi;Arunachalam, Kuthalingam Subbiah;Solomon, E.G.R.
    • The Journal of Advanced Prosthodontics
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    • v.4 no.4
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    • pp.259-265
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    • 2012
  • The intent of this article was to analyze the potential hazards and risks involved in persons exposed to prosthodontic practice. These risks include exposure to physical and chemical hazards, dental materials, infectious environment, inappropriate working pattern and psychosocial stress. The potential harm of these hazards and its prevention is highlighted. Prosthodontists, students, dental technicians, and others working in the prosthodontic clinics and laboratory should be aware of the specific risk factors and take measures to prevent and overcome these hazards.

Service System Design Using Fuzzy Service FMEA (퍼지 서비스 FMEA를 이용한 서비스 시스템 설계)

  • Kim, Jun-Hong;Yoo, Jung-Sang
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.31 no.4
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    • pp.162-167
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    • 2008
  • FMEA (failure mode and effect analysis)is a widely used technique to assess or to improve reliability of product not only at early stage of design and development, but at the process and service phase during the product life cycle. In designing a service system, this study proposes a fuzzy service FMEA with the service blueprints as a tool which describes customer actions, onstage contact employees actions, backstage contact employees actions, support processes, and physical evidences, in order to analyse and inform service delivery system design. We fuzzified only two risk factors, occurrence and severity, to more effectively assess the potential failure modes in service. Proposed fuzzy risk grades are applied to Gaussian membership function, defuzzified into Fuzzy Inference System, and eventually identified the ranks on the potential fail points.

Development of International Project Risk Index (IPRI)

  • Yoo, Wi Sung;Kim, Woo-young
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.49-50
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    • 2015
  • Since the mid-2000s, Korean large-sized construction companies have pursued in earnest to expand their business to global construction market in surroundings that domestic market have a continuous and long-term stagnation. However, during last a few years, they have experienced the serious financial loss from international projects. In the meantime, for the sound improvement of Korean construction industry, many stakeholders long for efficient early warning signals to generally monitor and track the potential risks of international projects. In this study, we introduce an International Project Risk Index (IPRI), which is derived from massive data provided by large-sized companies, and expect to provide the practitioners and decision makers as an aid to proactively cope with the change of the potential risks. The outcomes from the IPRI can be utilized to prepare a timely management strategy and to establish an appropriate government support regulation.

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