• Journal of the Korean Society of Radiology
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• v.16 no.2
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• pp.185-194
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• 2022

The decommission of nuclear legacy sites, which have been contaminated by previous activities such as uranium mining & milling as well as nuclear tests, has started to gain global attention. Within the Korean peninsula, Republic of Korea(ROK)has had experience in dismantling research reactors. For the Democratic People's Republic of Korea(DPRK), the possibility of nuclear activities being implemented and operations records being managed without consideration of the latest nuclear safety regulations are high. Hence, the chances of DPRK's sites remaining as nuclear legacy is also high. This study investigates approaches and considerations that needs to be taken in account in the event of a nuclear legacy site occurrence, reviewing its international cases for the solution of the legacy sites. The regulation, process of optimization, and stakeholder engagement for a nuclear legacy site should be considered in such an event. Developing legacy site response plans can be used to prevent future legacy site occurrences.

• Journal of architectural history
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• v.7 no.2 s.15
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• pp.77-90
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• 1998

This study on the site of vision in the Villa Savoye of Le Corbusier, concentrates on the precise analysis of the meaning of 'fenetre on longueur' in the living room. A lots of architectural theorists have regarded the Villa Savoye of Le Corbusier as a symbol of modern architecture, and his 'fenetre on longueur' as products of modern technology. But Le Corbusier who defined himself as 'homme visuel', responded keenly to the vision conditions inherent to the human finitude, Indifferent to the modern technology, Such a response would be derived from the experience of Acropolis, where 'the scheme was designed to be seen from a distance.' Generally speaking, 'fenetre en longueur', contra to 'porte-fenetre', makes one to focus on the panorama effect of the horizon, including a distant view. Entering the living room of Villa Savoye, however, we may perceive this window in two ways. Firstly this window acts as a screen to obstruct not to see outside, because of the wall above pressing down the line of view. Secondly this acts as a frame to make us see a distant view as far as eye can reach. These two ways result in the abbreviation of near view, and a sudden shift between a inferiority(derived from 'screen effect') and a distant view(from 'frame effect'). Depending on such a observation, this study can evaluate 'fenetre en longueur' internalizing of a distant view as the highest compressed scene of Le Corbusier's architectural poetics.

• Journal of the Korean Society for Computer Game
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• v.31 no.4
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• pp.157-166
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• 2018

Communication between customers and service providers is an important issue at sites where various businesses and transactions take place. In particular, the ability to solve problems quickly and accurately when a problem arises and when an inquiry is received is directly linked to trust in the site. In this paper, we propose a method of handling complaints and inquiries of site users by using chatbot technology on talent market platform site. First, we implemented chatbot that can communicate with the inquirers in real time, so that users can use the site usage and word search functions. For various errors and problems of the site which can not be defined by a few words or sentences, I have specified an error code and database it. Users of the site were able to contact chatbot with the error code that was output when an error occurred and get the corresponding response in real time. The chatbot implemented in this study provided a satisfactory experience because that was able to provide quick and accurate answers to users who experienced errors or inquiries when using the site. This will have a positive impact on the credibility and favorability of the site over the long term, and will help reduce manpower and time costs for error inquiries.

• Korean Journal of Social Welfare
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• v.62 no.2
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• pp.109-134
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• 2010

This study is about the experience of committing suicide's family and the purpose of study is to understand the essential structure of their life experience and to erect the grounded data for the restoration of committing suicide's families. The research was conducted by phenomenological case their family by suicide participated to study data were collected by in-depth interview. The authors interpreted the data in terms of Van-Menen's analysis framework. The result as follows: The essential themes of participant 1 were "digging seclusion site", "whirling around cryptograph" and participant 2 were "resuscitational catastrophe", "sowing seed on destroyed land", and participant 3 were "living Anonymous", "pumping priming water", and participant 4 was "taking on the burden of tragedy", and participant 5 was "stopen life time". The typical theme was "living person's life is died person's remaining category".

• Restorative Dentistry and Endodontics
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• v.37 no.4
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• pp.201-206
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• 2012

Objectives: The purpose was to investigate the preference and usage technique of NiTi rotary instruments and to retrieve data on the frequency of re-use and the estimated incidence of file separation in the clinical practice among general dentists. Materials and Methods: A survey was disseminated via e-mail and on-site to 673 general dentists. The correlation between the operator's experience or preferred technique and frequency of re-use or incidence of file fracture was assessed. Results: A total of 348 dentists (51.7%) responded. The most frequently used NiTi instruments was ProFile (39.8%) followed by ProTaper. The most preferred preparation technique was crown-down (44.6%). 54.3% of the respondents re-used NiTi files more than 10 times. There was a significant correlation between experience with NiTi files and the number of re-uses (p = 0.0025). 54.6% of the respondents estimated experiencing file separation less than 5 times per year. The frequency of separation was significantly correlated with the instrumentation technique (p = 0.0003). Conclusions: A large number of general dentists in Korea prefer to re-use NiTi rotary files. As their experience with NiTi files increased, the number of re-uses increased, while the frequency of breakage decreased. Operators who adopt the hybrid technique showed less tendency of separation even with the increased number of re-use.

• Journal of the Korea Institute of Construction Safety
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• v.6 no.1
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• pp.1-6
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• 2024

Existing safety education delivered to construction workers has limitations in concentration and immersion, so delivery power and interest are low. In order to improve the unstable behavior of construction workers and prevent safety accidents through education, a paradigm shift to hands-on education is necessary. Experiential safety education aims to contribute to the prevention of safety accidents and induce safe behavior by construction workers to recognize risks faster, select safe working methods suitable for the working environment, and improve emergency response and proactive response. Experiential education facilities have a follow-up learning effect in case of danger. The experience facility, which consists of the same working environment as the actual construction site, is designed to experience falls, equipment contraction, fire, and electric shock. In order to achieve the results of safety education that has invested a lot of time, construction workers must have motivation to participate, and "experiential safety education" through playful, deviant, and aesthetic experiences reduces serious accidents.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.10
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• pp.761-768
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• 2020

This paper explores the barriers to derivative accounting disclosures in Vietnamese companies and ranks their relative importance for effective and efficient remedies. The Delphi technique was applied to get agreement of panel of experts on the measurement of factors hindering disclosure. Unstructured questionnaires were first sent to twelve experts who had both practical experience and academic knowledge in the field to get ideas on the obstructions to derivatives disclosure. The structured questionnaire was designed to get their agreement on barriers to derivative accounting disclosures. The data analysis with mean, median, mode, standard deviation, and quartile has been implemented to ensure the unanimity. Market-related factors, legislation, accountants' attributes, managers' attributes, information technology and communication, and on-site training were the six major obstacles agreed upon by the experts during their in-depth interviews. Then, these factors were ranked by applying the analytical hierarchy process (AHP). The findings confirmed the priority of information technology and communication, which held the greatest weight. Legislation ranked second, followed by market-related factors and on-site training, which explained the impediments to derivatives disclosure. Managers' and accountants' attributes had the least contribution to the barriers to derivative disclosures. The results have important implications for actions to enhance corporate derivative disclosures in Vietnam.

• International conference on construction engineering and project management
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• 2013.01a
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• pp.74-79
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• 2013

Aiming at reducing deaths and injuries involving construction crane operations, OSHA has recently updated its 40-year-old crane safety standards with new rules addressing the use of cranes and derricks in construction. The goal of this change in rule is to deal with the leading causes of fatalities related to crane and derrick operations. Employers in the construction industry are mandated to ensure that employees in the work zone are trained to recognize hazards associated with the use of the equipment and any related duties that they are assigned to perform. However, those responsible at construction sites for the supervision and management of safe crane operations often lack the integrated knowledge of the standards, regulations and best practices for conducting or supervising daily, monthly, or quarterly inspection of cranes. As such, proper planning, management and implementation of crane operations, including inspections are just as paramount to reducing accidents on the construction site. It is important that engineers responsible for the management and planning of crane operations understand the latest OSHA crane and hoisting standards to ensure a safer work environment is maintained. Many on site engineers overseeing crane operations do not have adequate training, experience, and knowledge of the inspection requirements to assess safe crane operation and too often rely on the crane operator's judgement. This paper highlights recent research effort in defining significant changes in new crane and hoisting standards and provides basis for safety construction operations.

• Journal of the Korean Operations Research and Management Science Society
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• v.32 no.1
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• pp.27-51
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• 2007

We analyze the effects of the sellers' strateiges on the final bid prices in internet auctions. We focus on the following three strategies of the seller adoption of the buy-price, setting the starting bid price, and adoption of 'the effective fixed price' which means that the starting bid price is set near the buy-price. In addition, the number of units sold single-unit or multi-unit, and item characteristics, such as whether the food is a search product (functional product) or an experience product (non-functional product), are also considered. We use real data on bids for 4 items from an online auction site. We find that in an auction for experience products when sold as single units, adopting the buy-price strategy raises the final bid price. We also find that in multi-unit auctions, starting the auction at 'the effective fixed price' raises the final bid price.

• Safety and Health at Work
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• v.9 no.4
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• pp.427-433
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• 2018

Background: The purpose of this study was to identify the influence of workers' perceived workload, accident experiences, supervisors' safety leadership, and an organization's safety climate on the cognitive and emotional risk perception. Methods: Six hundred and twenty employees in a variety of manufacturing organizations were asked to complete to a questionnaire. Among them, a total of 376 employees provided valid data for analysis. To test the hypothesis, correlation analysis and hierarchical regression analysis were used. Statistical analyses were conducted using IBM SPSS program, version 23. Results: The results indicated that workload and accident experiences have a positive influence and safety leadership and safety climate have a negative influence on the cognitive and emotional risk perception. Workload, safety leadership, and the safety climate influence perceived risk more than accident experience, especially for the emotional risk perception. Conclusion: These results indicated that multilevel factors (organization, group, and individual) play a critical role in predicting individual risk perceptions. Based on these results, therefore, to reduce risk perception related with unsafe behaviors and accidents, organizations need to conduct a variety of safety programs that enhance their safety climate beyond simple safety-related education and training. Simultaneously, it needs to seek ways to promote supervisors' safety leadership behaviors (e.g., site visits, feedback, safety communication, etc.). In addition, it is necessary to adjust work speed and amount and allocate task considering employees' skill and ability to reduce the workload for reducing risk perception.