• 항공우주정책ㆍ법학회지
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• 제16권
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• pp.65-74
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• 2002

The Japanese Aviation Accident Investigation Board has two faces. While the surface of the Board is a one of the very accident investigation organ, its shadow face is a one of the very expert witness drawing up a requested written opinion for the sake of the criminal investigation of the Police under the two secret inter-ministerial accords. This Paper proposes that some evidence obtained by investigation ought to be protected for disclosure and use by privilege derived from on of our most basic legal principles: "Nemo debet se-ipsem accusare-no one is required to incriminate oneself-".

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.495-504
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• 2009

As the Reliability Centered Maintenance(RCM) is being studied, maintenance tasks can be performed effectively through the Risk Priority Number(RPN) evaluation about the components in the system. The RPN is usually calculated through arithmetical operations of three values, Severity, Occurrence, and Detection for each facility. This RPN provides information that includes risk level of the facility and the priority order of maintenance tasks for facility. However, if there is no sufficient historical failure data, it is difficult to calculate the RPN. In this case, historical failure data from other sources can be used and apply this data to korean railway system. In this paper, it is proposed that a new methodology to model the failure rate as a fuzzy membership function. This method is based on failure data from other sources by means of the fuzzy theory and the expert opinion system. And considering assessment tendency of each expert, distortions that happened when the failure rate of facilities is estimated were minimized. This results determine Occurrence values of facilities. Taking advantage of this result., the RPN can be calculated with Severity and Detection of facilities by using the fuzzy operation. The proposed method is applied the rail-way power substation.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 추계학술대회 논문집
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• pp.440-443
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• 2005

The wide spread of internet business recently necessitates recommendation systems which can recommend the most suitable product fur customer demands. Currently the recommendation systems use content-based filtering and/or collaborative filtering methods, which are unable both to explain the reason for the recommendation and to reflect constantly changing requirements of the users. These methods guarantee good efficiency only if there is a lot of information about users. This paper proposes an algorithm called 'demand articulate & integration' which can perceive user's continuously varying intents and recommend proper contents. A method of knowledge classification which can be applicable to this algorithm is also developed in order to disassemble knowledge into basic units and articulate indices. The algorithm provides recommendation outputs that are close to expert's opinion through the tracing of articulate index. As a case study, a knowledge base for heritage information is constructed with the expert guide's knowledge. An intelligent recommendation system that can guide heritage tour as good as the expert guider is developed.

• 농업과학연구
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• 제45권4호
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• pp.879-888
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• 2018

This research was done to develop a standard management checklist for duck farmers. To this end, experts in commercial duck farming participated in making a blueprint for a standard management checklist. This expert group consisted of ten members which included the researcher, a professor, an extension advisor and leading farmers in commercial duck farming. By collecting knowledge on commercial duck farming from these experts, a management performance index was made, and checking factors were designated. As a result of this expert survey, management outcome indicators and subdivision evaluation indicators were established. To confirm these results, a first stage Delphi expert survey was carried out. As a result, the experts were not in agreement with the farming scale of 1 - 4 levels and 2 levels in the management outcome indicators. Additionally, the experts were not in agreement on the choice of feed in the feeding management and the cooperative management system as well as the utilization of agricultural information in managing the business. The factors that did not have the same opinion among experts were surveyed by a second Delphi survey asking whether experts approve the requested value. As a result of the second Delphi survey, all factors have an approval rate that have a value of more than 90%. Finally, a standard management checklist was established based on the research result.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 1994년도 추계학술발표회
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• pp.49-58
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• 1994

The methods of estimation of VTS effectivenss are compared and the worldwide literature related to the VTS effectiveness is reviewed. The review suggests three potential approaches ; simulation ; synthesis of expert opinion and statistical analysis of casualties. this study adopted dissimilar approaches to estimate the VTS effectiveness to the earlier studies ; the combination of synthesis of expert opinion and causal analysis of casualty. The VTS effectiveness is derived by multiplying casualty rate reduction factors by the effect level of causal factors. The development of casualty rate reduction factors was based on the questionnaire survey and the evolution of effect levels was based on the causal analysis using functional block diagram. According to these procedures the maximum benefit to be obtained through the introduction of a VTS system was approximately 46 percent overall. The collision reduction rate was estimated to be approximately 50 percent for a VTS system with advanced radar surveillance. And 47 percent of groundings 36 percent of rammings and 21 percent of founderings could be reduced by the introduction of VTS. These figures are more or less the same to the earlier studies. The VTS effectiveness by the different causal factor groups was examined. VTS may reduce about 68 percent of causal factors classified as environmental conditions 40 percent of human factors and 35 percent of technical factors in collision accidents. As a whole 60 percent of environmental factors 41 percent of human factors and 20 percent of technical factors may be prevented by a VTS. The key variable of the effectiveness percentage is the value of weight coefficient $\delta$. Therefore differing values for this input was discussed and the impact that these variations have on the VS effectiveness noted. As the results of sensitivity analysis of VTS effectiveness by $\pm$10 percent the effectiveness is varied approximately three to seven percent by casualty type. And the value is changed roughly four to eight percent by a $\pm$10 percent variation by different sub-areas.

• 과학기술학연구
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• 제15권1호
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• pp.69-107
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• 2015

이 글에서는 '과학기술에 대한 시민의식 조사' 자료 분석을 통해 4대강 사업에 관한 시민의식의 변화, 특히 시민의 전문가 신뢰의 변화를 살펴봄으로써 '전문지식 정치'의 변화 양상을 이해해보고자 했다. 조사결과로 정부와 찬성 측 전문가의 신뢰도가 하락한 반면에, 반대 측 전문가, 환경단체의 신뢰도는 유지되거나 약간 상승하였다. 이것은 4대강 사업이 전문지식을 둘러싼 정치적 대결의 장이라는 사실을 보여준다. 정부의 4대강 사업 정책결정 과정은 그 타당성을 둘러싼 과학기술적 전문지식권력의 활용과 관련되어 있다는 점에서 전문지식 정치의 관점에서 살펴볼 수 있는 것이다. 한편 4대강 사업과 같이 전문가의 전문지식의 영향이 큰 과학기술적 생태적 쟁점과 관련하여, 시민들의 관심이 높고 또 이러한 사업이 일상생활에 영향을 미친다는 생각이 큰 것은 시민들의 권리의식이 높아진 결과라고 할 수 있다. 이와 함께 정책결정 과정에의 참여 필요성에 대한 생각이나 실제적인 참여 의향이 적지 않은 것은 과학기술 시민자격, 특히 '시민자격-책무 덕성'의 발달에 기인한다고 해석할 수 있다.

• 한국컴퓨터정보학회논문지
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• 제29권6호
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• pp.77-87
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• 2024

본 연구에서는 블록체인 및 NFT 분야 전문가들을 대상으로 델파이 기법을 활용하여 PEST(Political, Economic, Social, Technological 4가지 관점의 거시환경분석) 및 디지털 자산으로서의 3가지 조건 (가치 측정, 가치 저장, 가치 교환)에 대해 NFT 활성화 요건들을 조사하였다. 정치적/법적 요인으로 선정된 항목은 없었고, 경제적 요인으로 'NFT에 대한 소유 가치 및 투자 가치 확보', 사회적 요인으로 'NFT 거래에도 주식거래와 유사한 토대 마련', 기술적 요인으로 '사용하기 쉽고 보안성 높은 전자지갑', '손쉬운 사용자 접근성', 가치 측정 수단 및 교환의 매개 수단으로 선정된 요인은 없었으며, 가치 저장 수단으로 '저장된 가치에 대한 안전한 관리 및 소유 증명', '실물 자산과의 연계를 통한 시장 신뢰 확보' 등 NFT 상거래 활성화를 위한 6개의 요인들이 중요하다는 결과를 확인하였다. 본 연구에서 활용된 델파이 기법은 불확실한 미래 예측을 위해 전문가들을 대상으로 익명에 기반한 복수의 라운드 진행을 통해 합의된 의견에 수렴하였으며 전문가 선정의 대표성 및 의견 편향 등의 단점을 보완하기 위해 라운드별 추가 의견 수렴 및 질문 항목에의 반영 검토 과정도 병행하였다.

• 대한한의학회지
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• 제44권4호
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• pp.121-135
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• 2023

Objectives: This study aimed to establish and provide reliable information for general public, based on expert consensus, on the risks of misuse of medicinal herbs for food and pure food ingredients for the fetus during pregnancy. Methods: A panelist of seven traditional Korean medicine (TKM) gynecologists responded to a questionnaire summarizing the fetal safety literature for twenty-five medicinal herbs for food and pure food ingredients derived from medicated diet (藥膳, Yaksun) recipes during three online Delphi rounds anonymously. Results: Ginkgonis Semen (Ginkgo nut), Illici Veri Fructus (Star anise), lavender, bitter gourd, and parsley were agreed at the level 1 of "Do not consume". These five ingredients were recognized as having significant risks both in the literature evidence and in expert opinion. Rosemary, Citri Unshius Pericarpium, Discoreae Rhizoma, lemongrass, Schisandrae Fructus, Cassiae Semen, Foeniculi Fructus, Mori Fructus, Cinnamomi Cortex, and Astragali Radix were agreed at the level 2 of "consultation with TKM practitioner is required". Conclusion: Based on the consensus of a seven-member expert panel of TKM gynecologists, consumption of Ginkgonis Semen (Ginkgo nut), Illici Veri Fructus (Star anise), lavender, bitter gourd, and parsley should be avoided by pregnant women. For Rosemary, Citri Unshius Pericarpium, Discoreae Rhizoma, lemongrass, Schisandrae Fructus, Cassiae Semen, Foeniculi Fructus, Mori Fructus, Cinnamomi Cortex, and Astragali Radix, the level 2 advisory may be recommended to use with caution and to consult a TKM practitioner for advice on consumption, dose, and duration.

• 보건교육건강증진학회지
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• 제31권3호
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• pp.83-95
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• 2014

Objectives: This study was to examine the experts perception on the operation of the national health promotion fund and related policies, and to obtain the perspective on the improving governance of the fund. Methods: Experts opinion survey was recruited 120 experts who were public health officials, and members of board in academic societies related to health promotion and health policy, and 60 experts participated in the survey. Results: Most health care experts agreed that the current allocation of health promotion fund was not optimal with its lack of allocation on promoting healthy lifestyle and R&D for health promotion, while the majority of the fund was being spent on supporting national health insurance. Thus, establishing governance system and control tower for the fund was viewed as critical. Also the status of deliberation committee should be raised to higher position where it can hold practical authority to plan and evaluate fund spending. Conclusions: The priority of health promotion fund spending should be more on improving health such as modifying life-style and spreading healthy habits, rather than on disease management or subsidizing health insurance. It is recommended that change from to environment in health promotion policy regime is required to establish effective governance system for the fund operation.

• 한국생활과학회지
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• 제8권1호
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• pp.29-43
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• 1999

This study was carried out to investigate the view of the choice of spouse and marriage of unmarried women's college students. Most respondents in this study think that the optimum age for marriage is 27 and prefer a seniority in age of 3-4 years who feels in love as the future husband. Also, they wish that the job of future husband be a technical expert. Approximately 63% of respondents recognize the necessity of marriage but 38% of respondents do not show a positive opinion for marriage. They also expect the emotional stabilization or partnership from marriage. Majority of respondents show a negative response to the marriage as means to solve economic difficulties. However, only 25.9% of respondents strongly show the negative opinion. In the acquaintance of the opposite sex in the purpose for marriage, most respondent are negative. However, they are positive in keeping virginal purity prior to marriage. Also, it has revealed that respondents want a partnership through allotment in domestic duties including baby sitting rather than household management through patriarchal system. In household economy, they prefer sharing living expenses and having a job after marriage. In choosing an ideal husband, although the academic background is considered as an important factor, but the present occupation is more important than the academic background. Also, one of the priority to choosing a spouse is influenced by each household circumstance and economic balance. About half of respondents want their parents-in-law to be alive, however, few respondents want to live together with parents-in-law.