• 항공우주정책ㆍ법학회지
• /
• 제24권2호
• /
• pp.69-104
• /
• 2009

항공안전에 대한 항공선진국의 항공안전정책을 통해 얻을 수 있는 시사점을 위해 미국, 영국, 호주, 일본의 항공안전정책을 살펴보았으며 외국의 저비용항공사의 현황 및 한국의 저비용항공사의 안전정책 및 항공기 사고에 따른 항공안전 현황을 살펴보았다. 기존의 저비용항공사와 이제 신규 저비용항공사가 지역을 기반으로 지역항공사의 개념으로 탄생함으로써 새로운 저비용항공사의 시장이 형성되고 있는 상황이며 인근 동남아 지역에는 말레이시아의 와 같은 안전의 신뢰성을 갖고 정부가 지원하는 저비용항공사가 있는 반면 항공기 사고로 인하여 경영이 악화되었거나 안전성에 대한 신인도가 추락된 저비용항공사가 산재되어 있어서 외국의 저비용항공사에 대한 안전성 검증과 함께 국내 항공사의 국제선 진출에 대비한 신뢰성 향상 및 국제적 안전성 확보를 위한 안전관리 대책이 필요하다. 또한 현재 항공자유화와 항공수요의 다양화로 저비용항공사 증가 추세에 있으며 최근 제주항공, 에어부산, 진에어, 이스타항공이 국내선 운항과 동시에 국제선운항을 시작하였거나 준비하고 있는 상태이다. 본 논문은 최초 저비용항공사 출범 직후의 안전성에 대한 문제를 중심으로 연구를 진행하였으며 이후 이들 항공사 사고가 발생할 개연성에 대한 부분도 고려하였다. 따라서 국내외 항공시장의 환경변화에 능동적으로 대처하고 항공산업의 경쟁력 제고를 위해 신규 저비용항공사의 안전관리의 강화가 그 언제보다 필요한 시기라고 생각된다. 따라서 해외의 항공안전정책 가운데 미연방항공청의 Flight Plan 하위의 Business Plan처럼 구체적인 항공안전계획이 필요하다고 생각되며 본 논문이 저비용항공사의 항공안전 제고 노력에 미력이나마 도움이 되기를 바란다.

• Asian Journal for Public Opinion Research
• /
• 제8권3호
• /
• pp.297-323
• /
• 2020

The relationship between compliance with behaviors recommended to prevent the spread of COVID-19 and media exposure, negative emotions, and risk perception was examined using regression analyses of data from KAMOS, a nationally representative survey of South Korean adults. The strongest predictor of preventive behaviors in general was negative emotions, which had the largest βh (.22) among the independent variables considered. The eight negative emotions, identified using factor analysis of a series of 11 emotions, were anger, annoyance, fear, sadness, anxiety, insomnia, helplessness, and stress. Negative emotions themselves were influenced most strongly by the respondent's anxiety over social safety (βe=.286), followed by prediction of COVID-10 spread (β=.121, p<.001) and perceived risk of COVID-19 infection (β=.70, p=.023). Females (β=-.134) and those who felt less healthy (βo=-.097) experienced more negative emotions. Media exposure and increased media exposure both have significant relationships with negative emotions and both a direct and indirect impact on the adoption of preventive measures. Women, older people, and healthier people perceived greater risks and engaged in more preventive behaviors than their counterparts.

• 농촌계획
• /
• 제22권1호
• /
• pp.93-100
• /
• 2016

Land price can be affected by convenience or psychological repulsion like PIMFY (Please In My Front Yard) or NIMBY (Not In My Back Yard) for various facilities. Services related to public establishment, welfare, medical attention, and amenities in rural areas are comparatively poorer than those in urban areas. The purpose of this study is to estimate the implications of the accessibility to community facilities in rural areas for land prices using a hedonic price model. The accessibility to facilities is estimated by real road distances and the land prices are applied for four types of land usages: field, rice paddy, building lots, and village halls. Community facilities are classified from public and community services view: education, safety, culture, transport, environment, health care, and finance. The results show that the accessibility to health care and transport can positively affect land prices and the accessibility to environment (waste facilities and junkyard) and unpleasant services (funeral hall and charnel house) can negatively affect land prices. Especially, the accessibility to hospital is the most positive influential factor for all types of land usages.

• Asian Journal for Public Opinion Research
• /
• 제5권1호
• /
• pp.1-14
• /
• 2017

The Fukushima nuclear accident caused by an earthquake and a subsequent tsunami on March 11, 2011 has seriously impacted the environment surrounding the Fukushima Daiichi nuclear power plant. While all the residents near the plant were evacuated from the area deemed uninhabitable after the accident, residents of the neighboring area outside of the evacuation zone still seem to live in fear of invisible radiation. To understand Fukushima residents' thinking about the environmental risks that accompany a nuclear disaster, we utilize a poll of the residents of Fukushima conducted in 2013. Based on the survey data, we reveal factors that seem to strongly affect their knowledge and concerns about nuclear power plants. The results of the multivariate analysis show the importance of the following two factors: (1) confidence in mass media, and (2) trust in institutions in charge of administering the accident, especially the central government, the Nuclear and Industrial Safety Agency, and Tokyo Electric Power Company. We conclude that the more people trust mass media and particular institutions, the more likely it is that they are have an elevated sense of anxiety and fear of the presence of nuclear plants.

• Asian Journal for Public Opinion Research
• /
• 제1권4호
• /
• pp.249-267
• /
• 2014

Social media is being increasingly utilized in disaster relief work to identify safety issues, locate displaced-victims, and seek or provide support for those who need help. The presence of social media in disaster management has changed significantly in recent years, as it was not prevalent in the 2008 Wenchuan earthquake, but had become a powerful force in the 2013 Ya'an earthquake. This paper discusses the development of social media in disaster management via making a comparison between how it functioned in the two earthquakes. It examines the following aspects: who are the stakeholders that use social media in the earthquake management; how do they adopt this means in response to the earthquakes; and what are the outcomes of adopting social media with regards to public engagement and collaboration in an emergency event. As Sina Weibo acts as the equivalent of China's Twitter, the methodology relies on an analysis of posts in Weibo. The outcomes primarily show that: (1) authorities, celebrities and the public actively adopted social media for the purpose of information dissemination and resource mobilization; and (2) social media users are both content consumers and content generators in the times of earthquakes. The study concludes that social media as a backchannel communication tool is helpful for government institutions, corporations, and nonprofit organizations to build relationships with their stakeholders in the disaster management cycle. The result will interest academics and emergency management practitioners who are concerned with improving disaster communication.

• 한국전기전자재료학회논문지
• /
• 제33권4호
• /
• pp.310-314
• /
• 2020

Although waste oil derived fuel (WDF) production technology was developed under a government initiative ~10 years ago, it became stagnant owing to the small size of participating companies, residents' rejection of foul odor, and the nature of the technology for recycling waste that was avoided. However, this subject is under the spotlight again because of recent developments, such as garbage crisis. In particular, plastic is the most difficult waste to dispose of, with more than 4 million tons of plastic waste produced every year according to statistics from the Ministry of Environment. The most effective method for treating plastic waste is to produce WDF through low temperature thermal decomposition. The WDF includes several volatile ingredients that mostly limit the use of fuel for boilers, owing to safety concerns. In particular, flash point is legally stipulated because of secondary contamination in the distribution process and the risk of fire and explosion. It is required that external shipments (distribution) should be maintained in the range of at least 30~60℃ (excluding explosion prevention facilities) for diesel power generation. Therefore, this study seeks to find the flash point that is best suited to WDFs produced from plastic waste.

• Nuclear Engineering and Technology
• /
• 제49권6호
• /
• pp.1250-1258
• /
• 2017

The multigroup transport theory is the basis for many neutronics modules. A significant point of the cross-section (XS) generation procedure is the choice of the energy groups' boundaries in the XS libraries, which must be carefully selected as an unsuitable energy meshing can easily lead to inaccurate results. This decision can require considerable effort and is particularly difficult for the common user, especially if not well-versed in reactor physics. This work investigates a genetic algorithm-based tool which selects an appropriate XS energy structure (ES) specific for the considered problem, to be used for the condensation of a fine multigroup library. The procedure is accelerated by results storage and fitness calculation speedup and can be easily parallelized. The extension is applied to the coupled code SIMMER and tested on the European Sustainable Nuclear Industrial Initiative (ESNII+) Advanced Sodium Technological Reactor for Industrial Demonstration (ASTRID)-like reactor system with different fitness functions. The results show that, when the libraries are condensed based on the ESs suggested by the algorithm, the code actually returns the correct multiplication factor, in both reference and voided conditions. The computational effort reduction obtained by using the condensed library rather than the fine one is assessed and is much higher than the time required for the ES search.

• 한국보육지원학회지
• /
• 제18권2호
• /
• pp.19-38
• /
• 2022

Objective: The goal of this study is to develop an instrument for measuring the quality of teacher support for children's play (age 3-5) based on the Play Practice Resources for Teachers presented in the 2019 revised Nuri Curriculum. Methods: The subjects of this study were 333 early childhood educators. Exploratory and confirmatory factor analysis, as well as correlation analysis were all performed to confirm construct validity and concurrent validity. The reliability of each factor was verified using Cronbach's alpha. Results: The Preschool Teacher Play Support Scale (PTPSS) was finalized with 25 items, which included the following four sub-factors: interaction, play materials, play space, and play safety. The concurrent validity was also confirmed through significant correlations between the existing measures such as the Teacher Self-Efficacy Scale, the Teaching Efficacy Scale for Play, and the Teacher-Toddler Interaction Scale. The reliability of each factor was also desirable. Conclusion/Implications: The PTPSS was verified as a sound measure quantifying the play support behavior of teachers who respect the autonomy and initiative of young children which is being pursued by the 2019 revised Nuri Curriculum.

• 한국컴퓨터정보학회논문지
• /
• 제12권5호
• /
• pp.243-251
• /
• 2007

본 연구에서는 정보시스템 성공모형과 전자상거래 성공모형을 바탕으로 인터넷뱅킹의 특성과 성공요인을 반영한 인터넷뱅킹 성공모형을 설계하고 구조방정식 모형분석을 이용하여 모형의 유용성을 검증하였다. 구조방정식 모형을 통한 실증분석 결과, 사용의 용이성은 유용성과 사용자 만족, 신뢰에 유의한 영향을 미치는 것으로 나타났으며, 안전성은 신뢰에만 유의한 영향을 미치는 것으로 나타났다. 경제적 효익과 유용성, 신뢰는 사용자 만족에 유의한 영향을 미치는 것으로 나타났으며, 유용성과 사용자 만족은 행위의도에 유의한 영향을 미치는 것으로 나타났다. 인터넷뱅킹 사용이 급격히 증대됨에 따라 인터넷뱅킹의 성공을 위해서는 다른 인터넷뱅킹 사이트보다 더 차별화된 서비스를 제공해야 할뿐만 아니라 안전하고 신뢰할 만한 인터넷뱅킹 사이트를 구축해야 한다. 따라서 인터넷뱅킹 성공을 가져다 줄 수 있는 인터넷뱅킹 성공모형을 통하여 다른 은행보다 훨씬 더 우수한 인터넷뱅킹 서비스를 제공할 수 있는 지속적인 평가와 개선이 이루어져야 할 것이다.

• 자동차안전학회지
• /
• 제8권1호
• /
• pp.31-37
• /
• 2016

The Child Occupant Safety Assessment was first introduced and carried out by Euro NCAP in 2003, with the goal of ensuring manufacturers to develop safe vehicles for passengers of all ages; the objective was to evaluate the safety and protection offered by different Child Restraint Systems (CRS) in the event of a crash. In 2013, the formerly used P child dummy series was replaced by newer and more biofidelic Q1.5 and Q3 child dummies, representing 1.5 and 3 year old children respectively. The frontal and side impact dynamic performances of the Q1.5 and Q3 were tested within all classes of vehicles assessed by Euro NCAP at the time. As an extension to that initiative, Q6 and Q10 child dummies were later developed representing children of 6 and 10 years old. Since the protection of larger children during vehicle crashes relies greatly on the interaction of vehicle restraint systems such as seat belt and the CRS, instrumented Q6 and Q10 dummies will be used to assess the protection offered in the event of front and side impact crashes. In this paper, we focused on injury criteria of Q6 and Q10 child dummies at 64 kph 40% offset frontal crash test. The whole procedure was designed with DFSS analysis. The full vehicle sled test results of both dummies were conducted with different restraint systems settled through previous sled test. It showed that several injury criteria and image data were collected as the result of the full vehicle sled test. Based on the results of these investigations, this paper describes which factor is most important and combination shows the best performance when evaluating rear seat occupant protection for Q6 and Q10 child dummies.