• Title/Summary/Keyword: Case-Study

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Colorectal Cancer and its Association with the Metabolic Syndrome: a Malaysian Multi-Centric Case-Control Study

  • Ulaganathan, V.;Kandiah, M.;Zalilah, M.S.;Faizal, J.A.;Fijeraid, H.;Normayah, K.;Gooi, B.H.;Othman, R.
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.8
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    • pp.3873-3877
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    • 2012
  • Objective: Colorectal cancer (CRC) and the metabolic syndrome (MetS) are both on the rise in Malaysia. A multi-centric case-control study was conducted from December 2009 to January 2011 to determine any relationship between the two. Methods: Patients with confirmed CRC based on colonoscopy findings and cancer free controls from five local hospitals were assessed for MetS according to the International Diabetes Federation (IDF) definition. Each index case was matched for age, gender and ethnicity with two controls (140: 280). Results: MetS among cases was highly prevalent (70.7%), especially among women (68.7%). MetS as an entity increased CRC risk by almost three fold independently (OR=2.61, 95%CI=1.53-4.47). In men MetS increased the risk of CRC by two fold (OR=2.01, 95%CI, 1.43-4.56), demonstrating an increasing trend in risk with the number of Mets components observed. Conclusion: This study provides evidence fora positive association between the metabolic syndrome and colorectal cancer. A prospective study on the Malaysian population is a high priority to confirm these findings.

Assessment Model for Industrial Accidents Prevention Policy (산업재해 예방정책에 대한 평가모형)

  • Kim, Youngsun;Jo, Jinnam;Baik, Jaiwook
    • Journal of Applied Reliability
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    • v.17 no.1
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    • pp.38-49
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    • 2017
  • Purpose: The purpose of this study is to introduce the assessment model for industrial accidents prevention policy. Methods: 10 years of industrial accidents data are explored through EDA approach. Case control study is tried in order to assess the effectiveness of the measures taken by Korea Safety and Health Agency, Civilian, and 'Ministry of Employment and Labor'. Propensity score matching is used to match the characteristics of the two groups compared, and then case control study is again conducted. Next, logistic and Poisson regressions are used to assess the risk factors. Results: According to case control study involvement of 'Korea Safety and Health Agency' and 'Ministry of Employment and Labor' were not effective, but Civilian was. Propensity score matching leads to the same conclusion. Poisson regression reveals the impact of the risk factors on the industrial accidents. Industrial accidents occur more often as the number of employees grows. Mining, farming, fishing, 'transportation storage and telecommunication' and forestry have a higher level of industrial accidents but service industry has a lower level. It is odd that more involvement of Korea Safety and Health Agency, Civilian, and Ministry of Employment and Labor means more industrial accidents. Conclusion: 'Korea Safety and Health Agency', Civilian, and 'Ministry of Employment and Labor' seem to visit those industries with more industrial accidents.

Logistics Information System's Implementation Strategy of Global Company for Effective Logistics Cost Management : Focus on Case Study of 'A' Electronic Company (물류비의 효율적 관리를 위한 글로벌 기업의 물류정보시스템 구축 전략 : 'A'전자 구축사례를 중심으로)

  • Lee, Jong-Hwa;Goh, Hyun-Woo
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.31 no.1
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    • pp.132-141
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    • 2008
  • This research was conducted in order to present the strategies of implementing the logistics information system for effective logistics cost management with the case study of a leading global company. The strategy for effective logistics information system can be derived from the 3 different viewpoints, Firstly the effective global logistics management can be insured by means of the efforts of the reinforced total organization. Secondly from the process-oriented perspective, we should recognize the logistics process as the core factor of the competitive strategy and innovate the logistics process itself for the logistics cost reduction. Finally, the logistics cost will be effectively managed through establishing its logistics information strategy which maximizes the utilization of the information technologies. The case study of 'A' electronics company shows that its logistics management system provides the company with various visibilities about its logistics cost and the direct and indirect benefits over billions of wons per year as well. Therefore we can conclude that the research model provided in this research is validated. This study presents the concrete implementation strategies of the logistics information system and verifies the validity of the strategies by means of the case study of a leading company.

A Case Study on Practical Engineering Education: Medicine Vending Machine (실천 공학 교육의 사례연구: 약품 공급기)

  • Kim, Moon-Ki
    • Journal of Practical Engineering Education
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    • v.6 no.1
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    • pp.9-14
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    • 2014
  • The purpose of this research is to introduce a case study on application of practical engineering. Topic of the study is a medicine vending machine which consists of PLC (Programmable Logic Controller), DC motor, switch, photo sensor and so on. In order to design and manufacture of the device, a lot of subjects which have learned during school year are reviewed and practiced. Especially, not only internal process but mechanical mechanism can be understood by organizing hardware and software of all parts. Also, several ideas like user made supply or exact counting are suggested for high performance. From this case study, students can increase their originality and adaptability for related industry. Also, the technique can be initiated industry if needed.

A Case Study on Big Data Analysis Systems for Policy Proposals of Engineering Education (공학교육 정책제안을 위한 빅데이터 분석 시스템 사례 분석 연구)

  • Kim, JaeHee;Yoo, Mina
    • Journal of Engineering Education Research
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    • v.22 no.5
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    • pp.37-48
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    • 2019
  • The government has tried to develop a platform for systematically collecting and managing engineering education data for policy proposals. However, there have been few cases of big data analysis platform for policy proposals in engineering education, and it is difficult to determine the major function of the platform, the purpose of using big data, and the method of data collection. This study aims to collect the cases of big data analysis systems for the development of a big data system for educational policy proposals, and to conduct a study to analyze cases using the analysis frame of key elements to consider in developing a big data analysis platform. In order to analyze the case of big data system for engineering education policy proposals, 24 systems collecting and managing big data were selected. The analysis framework was developed based on literature reviews and the results of the case analysis were presented. The results of this study are expected to provide from macro-level such as what functions the platform should perform in developing a big data system and how to collect data, what analysis techniques should be adopted, and how to visualize the data analysis results.

A Case Study of Untact Works in Logistic Service-related Worker in the Era of COVID-19 (코로나시대 물류 서비스 관련 분야 직장인의 언택트 업무 사례 연구)

  • Bae, Soo Hyun
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.26 no.3
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    • pp.147-154
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    • 2020
  • The purpose of this study was to research the status of logistic service-related workers about untact works by case study in the Era of COVID-19. An experimental design was used by case analysis of interviews with ten office workers from May to June 2020. The results of this research were divided into three categories: work environment, work management and work effect. First, teleworking has a significantly positive influence on business efficiency about work environment. ZOOM, One drive, Skype, Chatbot, Microsoft Teams and Remote view are used as collaborative applications. Second, work instructions in documents are needed such as e-mail and messenger using information and communication technology about work management. Third, the strong points of teleworking are both high work efficiency and job satisfaction about work effect. The weak points of teleworking are both very low-technology and misunderstanding about work effect. The result offer some insights into the case study of logistic service-related workers about untact works. Based on the results, the implications and the limitations of this study were discussed.

A Study on the System Improvement Plan for Urban Regeneration of Historical and Cultural Environment - Focusing on the case of Hwangnam and Inwang Hanok district in Gyeongju - (역사문화환경의 도시적 재생을 위한 제도개선방안 연구 - 경주 황남·인왕 한옥지구 사례를 중심으로 -)

  • Kim, Nam-Hee;Lee, Hee-Chung
    • Journal of architectural history
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    • v.30 no.4
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    • pp.91-102
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    • 2021
  • This study is a case study of system improvement measures for urban regeneration of the historical and cultural environment. The example areas are Hwangnam and Inwang Hanok districts in Gyeongju City, which operate various systems to solve the urban decline problem caused by the historical and cultural environment regulations. The subjects of this study are resident support programs and district unit planning systems under the advanced promotion system established in the case area. As research methods, literature studies, field surveys, and in-depth interviews were conducted. Through this, the background and purpose of introduction of each system, major plan contents, and problems of the system application process were analyzed. This study drew the following implications through case studies. First, in order to more effectively promote the urban regeneration of the historical and cultural environment, it is necessary to improve the related systems in an integrated and systematic manner. Second, in order to resolve the policy distrust of local residents in the historical, cultural and environmental management system, a wider variety of planned alternatives to narrow the difference in interests between the public and private sectors should be presented.

Structural Safety Analysis of Car Body (차체의 구조 안전 해석)

  • Cho, Jae-Ung;Han, Moon-Sik
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.7 no.3
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    • pp.12-16
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    • 2008
  • The state of deformation and stress and the structural safety are studied at the main frame composed with car body by the impact of front, offset and overturn in this study. The values of maximum deformation and von-Mises stress in case of offset impact are 2 to 3 times as high as those in case of front or offset impact at the parts of front and middle legs of roll cage. The case of front impact is of the greatest safety as compared with the case of offset or overturn impact. As there is a great stress on the side in case of overturn impact, this value is more than 2 times as low as that in case of offset impact. But there is a great possibility of overturn by the buckling on both sides in case of overturn impact.

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A Study on the Selection of Pneumatic Components Using Similar Case (유사 사례를 이용한 공압 요소 선정에 관한 연구)

  • 신흥열;이재원
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.19 no.40
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    • pp.81-90
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    • 1996
  • It is one of the most important thing to select pneumatic components in pneumatic system design. For the purpose of selecting pneumatic components, case objects are described as a knowledge representation and the most similar case object must be selected by decision making in computer. In this paper, case objects are represented using the methodology that is used for CBR(Case Base Reasoning) and methodology that the most similar case can be selected is Proposed. Algorithm VIWNNR(Varying Index Weight-based Nearer Neighbor Retrieval) is accomplished by varying index weight, that is not considering a index matching as true or false but varying a size of weight according to the degree of matching and enhance the flexibility of SCRM(Similar Case Retrieval Module) involving fuzzy concept in matching the cases. SCRM is tested In verify the feasibility to select pneumatic linear components and is peformed effectively.

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The Effect of Case Management for Clients with Hypertension in Home Visiting Health Services (일 보건소 방문건강관리사업 고혈압대상자의 사례관리 효과)

  • Jang, Hyo Soon
    • Journal of Korean Public Health Nursing
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    • v.28 no.2
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    • pp.258-269
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    • 2014
  • Purpose: This study was conducted in order to present the effects of case management of a home visiting health service for clients with hypertension. Method: One-group pretest-posttest design was used. The subjects were 280 clients who received case management among the first and second registered group. The data were eight-week-case management results from January to December, 2010. In order to evaluate the effect of the visiting nursing service, biological indexes(blood pressure, total cholesterol, triglyceride, high density lipoprotein, low density lipoprotein, BMI) and self-care abilities(knowledge/attitude of hypertension, management of medication, nutritional care, confidence of self care) were measured. Result: Biological indexes and self-care abilities were improved, except total cholesterol, low density lipoprotein. Conclusion: The case management of home visiting health service by public health centers is considered to be an effective nursing service. Therefore, greater effort is needed for better maintenance of case management, and more research is needed in order to examine a variety of biological indexes.