• Title/Summary/Keyword: Prioritization

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Study on the Prioritization of Management for Each Toxic Chemical Substance in Ansan Smart Hub. (안산스마트허브 유해화학물질별 관리우선순위 선정에 관한 연구)

  • Choi, Bong Seok;Sa, Jae-Hwan;Kim, Min Wook;Jeon, Eui Chan
    • Korean Journal of Hazardous Materials
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    • v.2 no.1
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    • pp.12-17
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    • 2014
  • With a rapid growth of domestic industry in korea, now about 25,000 kinds of chemicals are being distributed, and it has been known that just about 15% of them has toxic substances. Recently, South Koreans have an anxiety about the stability and accidents of chemicals because chemical accidents like Gumi hydrofluoric acid accident have occurred. The U.S. has adopted the systems like EPCRA (Emergency Planning and Community Right-to-Know Act), TRI (Toxic Release Inventory) and TSCA (Toxic Substances Control Act), and is also managing the hazardous chemicals by providing the information about them to its people and site workers. Japan's Ministry of Health, Labor and Welfare also has adopted J-CHECK system and is implementing it to let Japanese people know the information of safety of chemicals about REACH. However, the Korean government has a difficult situation to mediate the different idea with the Korean industry to make lower statute of Pre-legislation registration & evaluation of chemicals that will be implemented and Chemical Material Control Association that is being implemented. Especially city and country areas located in the industrial areas need political improvement focusing on vulnerable area through the check about current situation of hazardous chemicals of jurisdiction and management method, but the information about the management situation of small scale work places is insufficient. Therefore this study set up the urgent management area in Ansan Smart Hub through NFPA code according to the types of accident and dander characteristics of each chemical being used in the companies that have less than 50 workers and deal with chemicals located in Ansan Smart Hub in Gyeonggi-do.

Housing Policy for Low-income Households (Ger Areas) in Mongolia: Based on Generic Characteristic of Developing Countries

  • Ishdorj, Saruul;Lee, Hyun-Soo;Park, Moonseo
    • International conference on construction engineering and project management
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    • 2017.10a
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    • pp.138-145
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    • 2017
  • As that experienced in other developing countries, Mongolia has already faced multilateral side issues for two decades due to economic growth that created Ger areas or internationally 'Slum', public housing and living conditions for low-income citizens, on the basis of rapid migration from rural areas to urban. Ger areas appear to be the main cause of environmental pollution problems and impending comfortable living conditions of the city's residents by covering more than half area of Ulaanbaatar city. Also, the spread of the Ger areas has many side issues such as prevention of urban development and unaesthetic. Most inhabitants of the areas are on low-incomes, and living in the detached houses or felt yurts (Ger) usually build within a low budget, by themselves or unprofessional people, and by using materials of poor quality. Therefore, Ger areas are an inevitable issue that requires effective, proper and immediate housing policy coordination under the government and even the housing market. Unfortunately housing policies, laws, and projects adopted by Mongolian government have shown inefficient results. The government housing policies, unlike other developing countries did not target low-income households' housing which is the priority issue for two decades. But only in 2014, the Long-term housing policy with the strategy for affordable housing initiated the housing policy for low-income households. This policy has five main broad directions such as redevelopment of Ger area, the land readjustment, public rental housing, new settlements and new city and reconstruction for old apartments, which are rather general and would require tremendous financial resources if each of the directions is implemented simultaneously without prioritization. Therefore this research aims to suggest the efficient and adequate housing policy direction for the low-income households in Ger area based on achievement of other developing countries' strategies, performances and generic characteristic with explanatory models. Also, this research adopts a literature analysis method that uses various research reports, related papers in domestic and international journals, and theses by experts, researchers, public institutions, and agencies.

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William Blake and the Network of Knowledge: Centering on the Communication of Poetry and Science (윌리엄 블레이크와 지식의 네트워크 -시와 과학의 소통을 중심으로)

  • Lee, Sungbum
    • Journal of English Language & Literature
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    • v.58 no.4
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    • pp.723-752
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    • 2012
  • Although his mythic poetry deals with the fall and resurrection of Albion as the origin of humankind, William Blake (1757-1827) simultaneously links it to the professionalization and unification of disciplinary knowledge itself. He particularly takes a great interest in the cross-referential relation of poetry to science. He argues for the communication of poetry and science on equal footing with each other without the former's prioritization over the latter, or vice versa. In his works Vala, or The Four Zoas (1797-1807) and Jerusalem: The Emanation of the Giant Albion (1804-1820), on which I focus in this essay, Blake's primary problematic is to display strong conflicts among different systems of knowledge. I approach this issue in light of the ideological clash of Newtonian thought, Romantic thought, and postmodern thought. In his poetry, Blake thematizes the very clashes of these different thought patterns. From the standpoint of Romantic thought, first of all, Blake problematizes Newtonian Enlightenment. He criticizes abstract universalization both in poetry and science, which Urizen, one of four Zoas, propagates. Protesting against Urizen's Newtonism, Los values "living form." Thus, Blake demonstrates, through this figure, that poetic imagination and scientific organicism are discursively communicative. Blake, however, also questions the network of Romantic science and Romantic poetry so as to suggest what current critics would call postmodern thought. Blakean postmodernism pursues the self-similarity of organic structure in science and poetry. Precisely, Blake sees polypus as a proliferation of organic body; he arranges four Zoas' self-repetitive stories in a non-linear way. Blake aspires for the conflicting coexistence of different thought patterns.

Study on Risk Assessment Method of Hydrogen Station using FAHP-HAZOP (FAHP-HAZOP을 적용한 수소충전소의 위험성평가 방법 연구)

  • Yeong Gwang Jo;Sien Ho Han
    • Journal of the Korean Institute of Gas
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    • v.27 no.4
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    • pp.92-101
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    • 2023
  • To solve the problem of climate change, carbon neutrality has now become a necessity rather than an option. Hydrogen is not only a energy storage that can supplement the intermittent production of renewable energy, but is also considered a good alternative in the field of utilization as it does not emit carbon dioxide after reaction. In order to revitalize hydrogen vehicles, one of the fields of hydrogen utilization, the construction of hydrogen station infrastructure must be preceded. Prioritization of risk factors is necessary for efficient operation and risk assessment of hydrogen stations, but due to the short operation period of domestic hydrogen stations, there is a lack of frequency data on accidents and their reliability is low. In this study, we aim to identify the causes and consequences of deviations in hydrogen stations through HAZOP analysis. Additionally, we intend to analyze them using Fuzzy-AHP. Through this, we intend to derive the decision values for the causes of deviations in hydrogen stations and apply them to hydrogen accident cases and risk assessments to confirm the reliability and utility of the data.

Analysis of Improvement Targets for Public Safety Threats in the Maritime Area Around the Launch Site (발사장 주변 해상의 공공안전 위협요인에 대한 개선 대상 분석)

  • Ahn-Tae Shin;Hun-Soo Byun
    • Korean Chemical Engineering Research
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    • v.62 no.2
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    • pp.153-162
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    • 2024
  • Securing safety in the maritime danger zone around the launch site before a launch is a fundamental requirement. If maritime safety is not ensured, the launch is halted or postponed. However, challenges have arisen in the process of securing public safety at sea due to factors such as the increasing population engaged in water leisure activities. These challenges include unauthorized entry of vessels into controlled areas, unauthorized access by water leisure activity participants, and non-compliance with regulations. In this paper, we employed the Delphi/Analytic Hierarchy Process to survey 22 experts, including professionals in launch vehicle development and launch site operation, to identify 10 factors posing threats to maritime public safety. Additionally, we identified five issues that need improvement for ensuring maritime safety. This study verified the consistency of expert opinions and conducted an analysis of importance and prioritization, objectively confirming the necessity for amendments to relevant laws or the enactment of new laws concerning the establishment and control of danger zones around launch sites.

A genomic and bioinformatic-based approach to identify genetic variants for liver cancer across multiple continents

  • Muhammad Ma'ruf;Lalu Muhammad Irham;Wirawan Adikusuma;Made Ary Sarasmita;Sabiah Khairi;Barkah Djaka Purwanto;Rockie Chong;Maulida Mazaya;Lalu Muhammad Harmain Siswanto
    • Genomics & Informatics
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    • v.21 no.4
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    • pp.48.1-48.8
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    • 2023
  • Liver cancer is the fourth leading cause of death worldwide. Well-known risk factors include hepatitis B virus and hepatitis C virus, along with exposure to aflatoxins, excessive alcohol consumption, obesity, and type 2 diabetes. Genomic variants play a crucial role in mediating the associations between these risk factors and liver cancer. However, the specific variants involved in this process remain under-explored. This study utilized a bioinformatics approach to identify genetic variants associated with liver cancer from various continents. Single-nucleotide polymorphisms associated with liver cancer were retrieved from the genome-wide association studies catalog. Prioritization was then performed using functional annotation with HaploReg v4.1 and the Ensembl database. The prevalence and allele frequencies of each variant were evaluated using Pearson correlation coefficients. Two variants, rs2294915 and rs2896019, encoded by the PNPLA3 gene, were found to be highly expressed in the liver tissue, as well as in the skin, cell-cultured fibroblasts, and adipose-subcutaneous tissue, all of which contribute to the risk of liver cancer. We further found that these two SNPs (rs2294915 and rs2896019) were positively correlated with the prevalence rate. Positive associations with the prevalence rate were more frequent in East Asian and African populations. We highlight the utility of this population-specific PNPLA3 genetic variant for genetic association studies and for the early prognosis and treatment of liver cancer. This study highlights the potential of integrating genomic databases with bioinformatic analysis to identify genetic variations involved in the pathogenesis of liver cancer. The genetic variants investigated in this study are likely to predispose to liver cancer and could affect its progression and aggressiveness. We recommend future research prioritizing the validation of these variations in clinical settings.

Whole Exome Sequencing in Patients with Phenotypically Associated Familial Intracranial Aneurysm

  • Yunsun Song;Jong-Keuk Lee;Jin-Ok Lee;Boseong Kwon;Eul-Ju Seo;Dae Chul Suh
    • Korean Journal of Radiology
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    • v.23 no.1
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    • pp.101-111
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    • 2022
  • Objective: Familial intracranial aneurysms (FIAs) are found in approximately 6%-20% of patients with intracranial aneurysms (IAs), suggesting that genetic predisposition likely plays a role in its pathogenesis. The aim of this study was to identify possible IA-associated variants using whole exome sequencing (WES) in selected Korean families with FIA. Materials and Methods: Among the 26 families in our institutional database with two or more IA-affected first-degree relatives, three families that were genetically enriched (multiple, early onset, or common site involvement within the families) for IA were selected for WES. Filtering strategies, including a family-based approach and knowledge-based prioritization, were applied to derive possible IA-associated variants from the families. A chromosomal microarray was performed to detect relatively large chromosomal abnormalities. Results: Thirteen individuals from the three families were sequenced, of whom seven had IAs. We noted three rare, potentially deleterious variants (PLOD3 c.1315G>A, NTM c.968C>T, and CHST14 c.58C>T), which are the most promising candidates among the 11 potential IA-associated variants considering gene-phenotype relationships, gene function, co-segregation, and variant pathogenicity. Microarray analysis did not reveal any significant copy number variants in the families. Conclusion: Using WES, we found that rare, potentially deleterious variants in PLOD3, NTM, and CHST14 genes are likely responsible for the subsets of FIAs in a cohort of Korean families.

Semi-quantitative Risk Assessment using Bow-tie Method for the Establishment of Safety Management System of Hydrogen Fuel Storage Facility in a Combined Cycle Power Plant (복합화력발전소 내 수소연료 저장설비의 안전관리 체계 구축을 위한 Bow-tie 기법을 활용한 반정량적 위험성 평가)

  • Hee Kyung Park;Si Woo Jung;Yoo Jeong Choi;Min Chul Lee
    • Journal of the Korean Society of Safety
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    • v.39 no.2
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    • pp.75-86
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    • 2024
  • Hydrogen has been selected as one of the key technologies for reducing CO2 emissions to achieve carbon neutrality by 2050. However, hydrogen safety issues should be fully guaranteed before the commercial and widespread utilization of hydrogen. Here, a bow-tie risk assessment is conducted for the hydrogen fuel supply system in a gas turbine power plant, which can be a mass consumption application of hydrogen. The bow-tie program is utilized for a qualitative risk assessment, allowing the analysis of the causes and consequences according to the stages of accidents. This study proposed an advanced bow-tie method, which includes the barrier criticality matrix and visualized maps of quantitative risk reduction. It is based on evaluating the importance of numerous barriers for the extent of their impact. In addition, it emphasizes the prioritization and concentrated management of high-importance barriers. The radar chart of a bow tie allows the visual comparison of risk levels before/after the application of barriers (safety measures). The risk reduction methods are semi-quantitatively analyzed utilizing the criticality matrix and radar chart, and risk factors from multiple aspects are derived. For establishing a secure hydrogen fuel storage system, the improvements suggested by the bow-tie risk assessment results, such as 'Ergonomic equipment design to prevent human error' and 'Emergency shutdown system,' will enhance the safety level. It attempts to contribute to the development and enhancement of an efficient safety management system by suggesting a method of calculating the importance of barriers based on the bow-tie risk assessment.

Delivery guideline composition and utilization plan for 4D CAD-based schedule management (4D CAD 기반 공정관리 성과품 납품 지침 구성 및 활용방안)

  • Kang, HyoJeong;Kang, Leenseok
    • Korean Journal of Construction Engineering and Management
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    • v.25 no.5
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    • pp.3-14
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    • 2024
  • Recently, both nationally and internationally, various BIM guidelines have been developed. These guidelines present fundamental principles and standards for the application of BIM. However, practical BIM guidelines for the schedule management area in the construction phase are lacking, making it difficult to apply them effectively in practical work settings. In this study, performance-based delivery guidelines are presented for the key functionalities of 4D CAD systems, which are representative BIM tools used in the construction phase. To achieve this, a survey analysis was conducted to determine the prioritization of these functionalities. Based on the characteristics of the project, delivery guidelines were formulated to allow users to selectively utilize the guidelines at different levels. Furthermore, practical ways to utilize performance-based delivery guidelines for schedule management using 4D CAD were proposed, validating the usability of these guidelines. The research findings suggest that these guidelines for BIM functionality in schedule management can hold practical significance as the utilization of BIM in construction phases continues to increase.

A Study on the Importance of Control Items of NIST SP 800-53 by Mapping CVE and STIG/SRG

  • Se-Eun Kim;Hyo-Beom Ahn
    • Journal of the Korea Society of Computer and Information
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    • v.29 no.11
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    • pp.173-185
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    • 2024
  • The U.S. federal government has established NIST SP 800-53 in response to the need for vulnerability management, and MITRE manages security vulnerabilities through CVE numbers. Although the relationship between NIST SP 800-53 and CVE is a crucial factor in vulnerability management, it is not clearly defined, making it challenging for security managers to identify control items that address the latest vulnerabilities. This study aims to analyze the relationship between NIST SP 800-53 and CVE to establish prioritization for evaluating security control items. Controls that are frequently associated with CVE should be prioritized for evaluation and improvement. The study derived the relevance between NIST SP 800-53 security controls through mapping CVE to STIG/SRG and used SecBERT, CyBERT, and RankT5 models to automate this mapping. The results confirmed the need to prioritize the improvement of specific security controls.