• Title/Summary/Keyword: Human case

Search Result 4,262, Processing Time 0.031 seconds

A Quantitative Analysis on Human Errors in Shifting Hazardous Materials of Semiconductor Plants (반도체공장의 위험물 교체작업시 인적과오에 대한 정량적 분석)

  • 임현교
    • Journal of the Korean Society of Safety
    • /
    • v.12 no.4
    • /
    • pp.161-168
    • /
    • 1997
  • Most plants producing semiconductors use a lot of chemicals, hazardous materials, and explosive gases. Though those materials are hazardous too much, some works still have to be done manually by human workers. However, according to a historical survey, more than half industrial accidents of those plants resulted from human errors or malfunctions. Thus, this research aimed 1) to diagnose shifting hazardous materials of semiconductor plants, 2) to estimate failure probability of human workers through human reliability analysis, and 3) to find out the tasks on which educational emphasis should be put. Through personal interview and visiting working spots, shifting tasks were analyzed, and modelled into a 24-step work, and after that, THERP and ETA was applied. During the shifting work, estimated human failure probability under the assumption of independency, 2.3004E-05, underestimated that probability 8. l008E-05 which could be calculated under the assumption of dependency. And this analysis showed that gas leakage from an old cylinder occupies 78.27% in the case of independent failures whereas gas leakage from a new cylinder occupies 75.06% in the case of dependent failures. So it was concluded that dependency assumption may gloss real situations. In addition, confirming gauge of regulators and closing valves turned out to be the most important tasks than purge tasks.

  • PDF

Oral Hairy Leukoplakia in Patient with Human Immunodeficiency Virus Infection

  • Park, Gunwoo;Ahn, Hyung Joon;Choi, Jong-Hoon;Kwon, Jeong-Seung
    • Journal of Oral Medicine and Pain
    • /
    • v.40 no.2
    • /
    • pp.79-81
    • /
    • 2015
  • Oral hairy leukoplakia occurs on the lateral surface of the tongue that clinically as an asymptomatic white lesion. It is mainly found in patient with human immunodeficiency virus infection. However, it rarely outbreak immunosuppressed patients after organ transplantation, or the patients taking steroids or immunosuppressants. It is the result of proliferating Epstein-Barr virus in the oral epithelium. Most of human immunodeficiency virus infected patients with oral hairy leukoplakia are highly contagious and possible to progress acquired immunodeficiency syndrome. Therefore, the early diagnosis of oral hairy leukoplakia is very important. Taking a thorough history and human immunodeficiency virus screening test is highly recommended in case oral hairy leukoplakia is detected. In this case, a 29-year-old man presented with whitish lesion on lateral border of tongue is diagnosed as oral hairy leukoplakia and human immunodeficiency virus infection.

A Case Study on Performance Evaluation of IT Human Resource Program in Regional Industry (지역특화 IT 인력양성 프로그램 성과분석 사례연구)

  • Park, Jung-Hwan;Kim, Guk-Boh
    • The Journal of Society for e-Business Studies
    • /
    • v.19 no.1
    • /
    • pp.79-93
    • /
    • 2014
  • IT industry that main domain is future growth engines and convergence industry is based on national development through convergence others industry. However, shortage of advanced IT workforce is not limited to the region and urban. But, Previous studies is comprehensive research on human resource development. Human resource development studies, performance analysis and policy studies, are lacking to achieve the characterization in the region. Accordingly, The need for institutional improvement are appearing for activated regional industry through advanced Human resource development and IT convergence. in this study, we propose in order to improve institutions through IT sector performance evaluation.

No Significant Association between Human Papillomavirus and Breast Cancer, Sanandaj, Iran

  • Karimi, Maryam;Khodabandehloo, Mazaher;Nikkhoo, Bahram;Ghaderi, Ebrahim
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.17 no.10
    • /
    • pp.4741-4745
    • /
    • 2016
  • Background and Objective: Any role of human papillomavirus (HPV) in the development of breast cancer is conjectural. The aim of this study was to investigate possible links between HPV and breast cancer in women, Sanandaj, Iran. Methods: In this case-control study, 70 formalin fixed and paraffin embedded blocks of breast malignant tumors as a case group and 70 blocks of lesions without malignancy were selected as controls. Sections about $10{\mu}m$ thick were prepared. After removing the paraffin, DNA was extracted. Samples were tested by PCR using general and high-risk specific HPV primers. Results: All 70 malignant breast tumors (cases) were invasive ductal carcinomas, and of the 70 controls, 17 (24.3%) were fibrocystic tumors and 53 (75.7%) fibroadenomas. The age range of women in the case group was 25-72 years old and in the control group It was13-66 years. Using HPV general primers two samples were positive in the case group, confirmed to be HPV-18 using high-risk specific primers. Conclusion: No statistically significant association was found between breast cancer and HPV. It is necessary to confirm this result by further investigations in other populations.

A Retrospective Analysis of Ruptured Breast Implants

  • Baek, Woo Yeol;Lew, Dae Hyun;Lee, Dong Won
    • Archives of Plastic Surgery
    • /
    • v.41 no.6
    • /
    • pp.734-739
    • /
    • 2014
  • Background Rupture is an important complication of breast implants. Before cohesive gel silicone implants, rupture rates of both saline and silicone breast implants were over 10%. Through an analysis of ruptured implants, we can determine the various factors related to ruptured implants. Methods We performed a retrospective review of 72 implants that were removed for implant rupture between 2005 and 2014 at a single institution. The following data were collected: type of implants (saline or silicone), duration of implantation, type of implant shell, degree of capsular contracture, associated symptoms, cause of rupture, diagnostic tools, and management. Results Forty-five Saline implants and 27 silicone implants were used. Rupture was diagnosed at a mean of 5.6 and 12 years after insertion of saline and silicone implants, respectively. There was no association between shell type and risk of rupture. Spontaneous was the most common reason for the rupture. Rupture management was implant change (39 case), microfat graft (2 case), removal only (14 case), and follow-up loss (17 case). Conclusions Saline implants have a shorter average duration of rupture, but diagnosis is easier and safer, leading to fewer complications. Previous-generation silicone implants required frequent follow-up observation, and it is recommended that they be changed to a cohesive gel implant before hidden rupture occurs.

A human case of Stellantchasmus falcatus infection (Stellantchasmus falcatus에 의한 인체 감염 1례)

  • Son, Un-Mok;Chae, Jong-Il;Lee, Sun-Hyeong
    • Parasites, Hosts and Diseases
    • /
    • v.27 no.4
    • /
    • pp.277-280
    • /
    • 1989
  • A human case infected with Stellantchasmus falcatus(Heterophyidae) is reported based on the adult worms collected after praziquantel treatment. The patient is a 33-year old male residing in Seoul. For several moths he experienced vague abdominal discomfort and hunger pain. Praziquantel at a single dose of 600mg was given followed by purgation with magnesium salt, and 17 adult S. falcatus pecimens were collected from the diarrheal stools. He recalled he had eaten raw flesh of several kinds of brackish water fishes. This is the 4th human case of S. falcatus infection in Korea.

  • PDF

An incidental case of human Heterophyes nocens infection diagnosed by sectional morphology in a biopsy specimen of the small intestine

  • Ryang, Yong-Suk;Lee, Chi-Young;Lee, Kyu-Jae;Lee, Soon-Hyung;Chai, Jong-Yil
    • Parasites, Hosts and Diseases
    • /
    • v.37 no.3
    • /
    • pp.189-194
    • /
    • 1999
  • A case of human infection with Heterophyes nocens (Heterophyidae) was incidentally found in a biopsy specimen of the Meckel's diverticulum at the upper part of the small intestine. The patient was a 58-year-old man living in a rural area of Talsong-gun, Kyongsangbuk-do.He had gastrointestinal symptoms such as epigastric pain, indigestion, and abdominal discomfort for 3 months, and severe diarrhea, abdominal pain, and vomiting for about 1 month before hospitalization. Endoscopy of the upper part of the small intestine revealed a Meckel's diverticulum, and it was excised and histo-pathologically examined. Three adult flukes were incidentally found sectioned in the mucosa, and they were identified as H.nocens. The patient had a history of eating raw mullets at a fish market in Pusan 6 months ago, and the mullets were presumed to be the source of infection. This case brings a considerable interest in that specific diagnosis of heterophyid infections could be done by sectional morphology of the worms.

  • PDF

Assessment of Possibility on the Human Risk for the Electromagnetic Field of Unbalanced Two Coupled Three-phase Transmission Line Using Fuzzy Theory (퍼지이론을 이용한 3상 2회선 불평형 송전선로에서의 전자계에 대한 인체 위험 가능성평가)

  • Kim, Sang-Chul;Kim, Doo-Hyun
    • Journal of the Korean Society of Safety
    • /
    • v.21 no.2 s.74
    • /
    • pp.22-28
    • /
    • 2006
  • This paper presents assessment of possibility on the human risk for the electromagnetic field of unbalanced two coupled three-phase transmission line using fuzzy theory. Three phase load flow program was developed which employed a Newton-Raphson method as a tool to analyze system unbalanced. This research presents a method of handling two coupled three phase transmission system unbalance analysis and unbalanced power demand as a function of voltages. As the results of case study, in case of 345[kV] T/L, the electric field intensity was 10.9540[kV/m], magnetic field intensity was 0.2567[G] in severest case. The results showed that the membership of a proposition fuzzy '10.9540 [kV/m] is hazardous' is 0.6349. As the analytic results using the fuzzy qualifier term, the membership in case of very false is 0.1379 and fairly false is 0.6124, respectively. In assessment of fuzzy measure possibility for the electromagnetic field, this paper used probability of fuzzy arid measure of fuzziness technique.

Safety Assessment on the Human Intrusion Scenarios of Near Surface Disposal Facility for Low and Very Low Level Radioactive Waste (저준위 및 극저준위 방사성폐기물 표층처분시설의 인간침입 시나리오 안전평가에 대한 고찰)

  • Hong, Sung-Wook;Park, Sangho;Park, Jin Beak
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
    • /
    • v.14 no.1
    • /
    • pp.79-90
    • /
    • 2016
  • The second-stage near surface disposal facility for low and very low level radioactive waste's permanent disposal is to be built. During the institutional control period, the inadvertent intrusion of the general public is limited. But after the institutional control period, the access to the general public is not restricted. Therefore human who has purpose of residence and resource exploration can intrude the disposal facility. In this case, radioactive effects to the intruder should be limited within regulatory dose limits. This study conducted the safety assessment of human intrusion on the second-stage surface disposal facility through drilling and post drilling scenario. Results of drilling and post drilling scenario were satisfied with regulatory dose limits. The result showed that post-drilling scenario was more significant than drilling scenario. According to the human intrusion time and behavior after the closure of the facility, dominant radionuclide contributing to the intruder was different. Sensitivity analyses on the parameters about the human behavior were also satisfied with regulatory dose limits. Especially, manual redistribution factor was the most sensitive parameter on exposure dose. A loading plan of spent filter waste and dry active waste was more effective than a loading plan of spent filter waste and other wastes for the radiological point of view. These results can be expected to provide both robustness and defense in depth for the development of safety case further.

A Case Study of Human-AI Co-creation(HAIC) in Fashion Design (패션 디자인에서의 인간-AI 공동창조(HAIC) 사례 연구)

  • Kyunghee Chung;Misuk Lee
    • Journal of Fashion Business
    • /
    • v.27 no.4
    • /
    • pp.141-162
    • /
    • 2023
  • With the prospect that integrating creative AI in the fashion design field will become more visible, this study considered the case of creative fashion design development through Human-AI Co-creation (HAIC). Methodologically, this research encompasses a literature review and empirical investigations. In the literature review, the fashion design and creative HAIC processes, and the possibilities of integrating AI in fashion design were considered. In the empirical study, based on the case analysis of generating fashion design through HAIC, the HAIC type according to the role and interaction method, and characteristics of humans and AI was considered, and the HAIC process for fashion design was derived. The results of this study are summarized as follows. First, HAIC types in fashion design are divided into four types: AI-driven passive HAIC, human-driven passive HAIC, flexible interaction-based HAIC, and integrated interaction-based value creation HAIC. Second, the stages of the HAIC process for creative fashion design can be broadly divided into semantic data integration, visual ideation, design creation and expansion, design presentation, and design/manufacturing solution and UX platform creation. Third, in fashion design, HAIC contributes to human ability, enhancement of creativity, achievement of efficient workflow, and creation of new values. This research suggests that HAIC has the potential to revolutionize the fashion design industry by facilitating collaboration between humans and AI; consequently, enhancing creativity, and improving the efficiency of the design process. It also offers a framework for understanding the different types of HAIC and the stages involved in the creative fashion design process.