• Fire Science and Engineering
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• v.33 no.4
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• pp.28-34
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• 2019

Regardless of the ignition source, the main factors affecting the spread of flames to the human body are combustibles. The sound absorption material, which is the finishing material used in music institutes and karaoke rooms, consists of polyurethane that generates a large amount of toxic gas with a high amount of combustion gases during a fire. Still, the current law does not require the use of impregnated finishing materials for tutoring services with less than 100 users. In this study, the rate of flame diffusion was measured using the MultiRaelite composite gas measuring instrument (target substance VOC, HCHO, SO₂, CO₂, CO, HCN, and NO₂) for the collection of sound-absorbing materials installed in the actual music academy. The results showed that the toxic gas found in this experiment exceeded the allowable concentration of TWA (Time Weighted Average) and STEL (Short Term Exposure Limit). In addition, a comparative combustion test of the general sound absorber and non-combustion sound absorbing materials on the market showed wide differences in ignition and diffusion. Therefore, based on the results of the experiment, private institutes with less than 100 users should be mandated to use non-combustion sound absorbing materials.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.20 no.5
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• pp.187-193
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• 2020

The purpose of this study is to study the methodology of deriving a policy that activates artificial intelligence from the governmental perspective in order to induce corporate growth by effectively grafting artificial intelligence technology into society and thereby improve individual and national competitiveness by creating new jobs. In order to derive activation plans, 1) detailed investigation of the domestic environment, 2) discovery of priority support fields and models that can be applied to artificial intelligence, 3) preparation of guidelines for activation and introduction, 4) specific methods for promoting and activating artificial intelligence Should be presented. The proposed artificial intelligence activation method performs a procedure to verify and confirm the effectiveness of artificial intelligence nurturing through a multi-faceted approach. The multi-faceted analysis approach includes business ecosystem aspects, industry-specific aspects including companies, technology fields, policy aspects, public and non-public services aspects, government-led and private-led aspects. Therefore, it can be reviewed as a method of inducing activation in various forms. In the future research field, it is necessary to prove the effectiveness of the proposed activation plan based on empirical data on artificial intelligence-based services. The expected effect of this study is to contribute to support the development of artificial intelligence technology and to establish related policies.

• Journal of the Korean Institute of Landscape Architecture
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• v.24 no.2
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• pp.86-98
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• 1996

This study is intended to revaluate old tree, five of the shot of the Natural Monument and 66 shot trees under protection in the city at present. The study covers distribution, management of usage, investigation and research into various matters relating to the situation of old trees in Pusan. Because 60% of the old trees selected for protection is on private land, citizens have difficulty gaining access to them. Also space for growth is impinged on by various urban facilities. Some trees have problems of growth because the land is covered with cement and asphalt. As regards space for old trees, many places have been destroyed due to the lack of protection fences and the failure to establish a guidance board. Only 40% of the space has been set aside for rest. In these places the establishment of rest areas, benches and handy chairs is needed. And there are 20 holy places where people observe religious ceremonies. As for space security necessary for old trees according to trunk width, the minimum trunk width and availale area needed are more than 1:1.5, but less than 30% have the necessary space. The growth of many old trees is threatended because of the small apace for growth. The prescription of the boundary space is divided between inside and outside. This indicates the domain nature and space rank of the old tree. It can be classified into five forms for research purposes. The elements for prescription of critical space outside are connected with the security of space, and the elements relating to inside space portray the conditions for sensitive growth according to the institution and the ground conditions. The open and closed nature of old tree space has some connection with the relationship between usage and the intimacy of the user. Most of the spaces for old trees can't be used or are difficult to gain access to, so it is necessary to secure enough space for them. The 18 places, despite having easy access, are near farmland, hills or forest. So the intimacy factor is low, and the security of space of the old trees is not generally sufficient. Henceforth, it will be necessary to have security of area for old trees as well as maintenance control to protect them. Also the space should be used as a communal and recreation are in the city. It is the time to construct a landscaped area which people can easily approach, a place with a secure entrance where they can play, rest and converse.

• Journal of the Korean Society of Marine Environment & Safety
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• v.14 no.3
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• pp.177-181
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• 2008

In this study, the authors analyzed the limit of IOPC Fund system, such as limit of compensation, amount of FC, long period of assessment by IOPC Fund, issue of non verification by poor claimant or small business, issue of poor claimant subsistence in early stage of accidents, and comparatively analyzed how the three countries resolved these limits by enacting special laws and government policy. Until recently most governments have carried out prevention policy for maritime safety, oil spill response, investigation of maritime accidents, and restoration of marine environment when oil spill accidents happened. However, governments have not actively participated in the oil spill compensation process because it is a matter of private sectors between the polluter and claimant. The governments have only limited their role in ratifying Civil Liability Convention and Fund Convention and enacted relevant domestic laws. However, the governments of France, Spain, and Korea have actively participated in the compensation process of oil pollution incidents of M/T Erika, M/T Prestige, and M/T Hebei Spirit. This is because they had experiences of unsuccessful compensation in M/T Amoco Cadiz, M/T Agean Sea, and M/T Sea Prince.

• The Korean Journal of Air & Space Law and Policy
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• v.21 no.2
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• pp.97-121
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• 2006

Inter-Korean exchanges using civil aviation has been continuing since the temporary direct air route from Pyongyang to Seoul was opened on June 15th, 2000 for the summit meeting with North Korea. In this paper, I analyze the North Korea Aviation law by focusing on the differences with South Korean Aviation law. While South Korean Aviation law is modeled on the Pandect system, North Korean Aviation law can only be understood by looking at North Korea's socialist ideology. Therefore, North Korean Aviation law has some expressions which can hardly be understood. With respect to the source of aviation law, both South and North Korea are in compliance with the Convention on International Civil Aviation (Signed at Chicago, on 7 December, 1944). Thus, they established the aviation law based on the standards and recommendations provided by ICAO. For this reason, they have similar legal systems and composition. From this analysis, a few differences are also derived regarding aircraft ownership, airports, airline liability, aircraft accident investigation organization and aviation insurance. It is important to note that this paper has a particular limitation. Not only is the information about North Korean law very limited, but North Korea also does not provide easy access to its national legal codes. This paper describes the legal comparison of South and North Korea by focusing on the formation and framework of North Korean aviation law.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.5
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• pp.1257-1269
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• 2010

The internet which is fast spread over all areas of our lives provides us with benefits of efficiency, productivity, and amusement; however, its features as an anonymous and non-face-to-face medium have raised a serious social issue of the collapse of internet ethics due to the abuse of it. Thereupon, the importance of internet ethics education has been highlighted to prevent side effects resulted from the internet and cultivate human-centered internet culture. In this paper, we suggests desirable methods for internet ethics education based on the investigation and analysis of the status of university freshmen's internet ethics. This research conducted a survey and analyzed its result after categorizing the status of internet ethics into the invasion of private information, invasion of intellectual property rights, harmful information, internet communication culture, cyber violence, internet addiction, and internet fraud. And based on the result of analyzing their internet ethics, this paper suggests desirable methods for internet ethics education. Next, internet ethics education was conducted by applying the proposed methods for internet ethics education, and its educational effect was evaluated. According to the result of verifying the educational effect measured statistically, it has proved that the suggested internet ethics education is effective to improve undergraduates' internet ethics.

• Korean Journal of Community Nutrition
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• v.14 no.6
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• pp.767-776
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• 2009

This study evaluated the effect of nutritional improvement of 0~5 year children of financially poor families after nutrition supplement of children and nutrition education in parents/guardians. The subject selected among applicants for low-income family financing of the government included 198 children (0~12 months:92, 1~5 years:106), and the average ages were 5.3 months and 2.4 years respectively. Food that includes each nutrient factor was provided to the subject for six months. Nutrition education was performed in two ways, through class and private education, once a month for both. Nutritional improvement was evaluated by body measurement and anemia prevalence rate. As to the survey on breast-feeding, complete breast-feeding accounted for 58.7%, weaning food 27.3%, and combined feeding 14.1% respectively, which shows that breast-feeding accounted for the largest percentage. The education program improved knowledge and attitude of the parents/guardians, which brings in positive effects on growth of children as well. The nutrition knowledge score was improved after nutrition education in 0~12 month children $(8.5\pm1.75\;to\;8.9\pm1.69)$ and 1~5 year children $(7.3\pm1.39\;to\;7.8\pm1.30)$. The nutrition attitude score was significantly improved in 0~12month children $(52.0\pm6.99$ to $53.5\pm5.21$, p < 0.001) and 1~5year children ($45.1\pm7.30$ to $49.0\pm5.96$, p < 0.001). In evaluation on nutritional improvement based on body measurements, it turned out that the wasting was reduced as for children in consideration of the height and weight according to the subject's age. The concentration of hemoglobin after the nutrient treatment for six months was significantly improved, and the anemia prevalence rate as well was reduced from 40.6% to 13.5%, which indicates the significant improvement. Based on the findings above, it turned out that providing quality food to children and nutrition education to the parents/guardians poorly fed in low-income families improved knowledge and attitude of the guardians and prevents anemia and improves growth, which brings in positive effects on growth of children. In the results regarding attitude and knowledge on nutrient/dietary life; however, the improvement level was relatively low when the extent before the education was too small, which indicates the need to revise and complement the contents and methods. In addition, as shown in the result of body measurement, long-term and consistent investigation is necessary since it is difficult to judge the effect on growth only based on short-term nutrient supplement.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.9
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• pp.5810-5818
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• 2015

The dissertation presents the portfolio construction method using the score sheet so that general investors can utilize it easily. This study draws the significant variables to contribute the enterprise value and suggests the combined models by applying the single methodology, which private investors can easily utilize. The results of the research can be classified into 2 areas. Firstly, the significantly affecting variables were selected for analyzing the enterprise value. The variables and the method for the enterprise value analysis were studied from the existing researches to choose the optimal variables. The variables were identified by using AHP method and the structure equation method from the investigation of the previous researches. And the critical variables were added extracted from the common denominator of variables which the 3 grue investors used for their investment. The final variables identified are dividend yield, PER, PBR, PCR, EV/EBITDA, ROE, net income, sales growth rate, net current asset, debt ratio, current ratio, rate of operating profits, ratio of operating profit to net sales, ratio of net income to net sales, net profit to total assets, EPS growth rate, inventory turnover ratio, and receivables turnover. Second, the new methodologies for forecasting enterprise value modifying the existing methods were developed. The result of the Logistic regression analysis for forecasting showed that the equation could not be suitable as the accuracy with 91.98%.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.30 no.1
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• pp.31-38
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• 2012

This study was conducted for the purpose of pursuing the development of Korean scenic spots1) by comparing policies of preserving and maintaining scenic spots in Northeast Asia, especially in South Korea, Japan, Taiwan, China. The objects to be compared for this study were the concepts and designation criteria of scenic spots, the types and present conditions of designated scenic spots and the preservation policies and budgets for scenic spots and so on. As for the research methods, analyses of literary documents, domestic and oversea on-site surveys and mutually-comparative analyses of translated data from China, Taiwan and Japan, etc. were used for this study, and the main results obtained by those research methods can be summarized as blow. As for the present conditions of designated scenic spots, it was found that there were more natural scenic spots than natural ones in Korea, Taiwan and China, while there were more cultural heritages designated as scenic spots than natural heritages in Japan. With Tourism Development Ordinance additionally enacted, which involves the contents related to the permission of tourism development and investment for scenic spots, the Taiwanese government tries to activate tourist attractions by attracting private enterprises' investments. What is unique about Japan is that some places can be pre-designated as scenic spots through an education committee called 'Scenic Spot Designation Committee'. The study of the book was investigation analysis with the designated present situation and the actual situation of the northeastern Asian national natural beauty spot. The type of Korea natural beauty spot resources and the appointment. I was going to offer it with a basic document to expect a designated standard and the designated activation of the Korea natural beauty spot.

• Information Systems Review
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• v.17 no.3
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• pp.77-94
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• 2015

As Internet has become a popular media for sharing information, users create and share tremendous volume of information including large amount of personal information in cyberspace. Sharing private information online can enhance strength of social relationship but it could also bring negative consequences like information privacy invasion. Although many companies and governments address the importance of information privacy online, there are countless cases of crimes and hackings relating personal information online world wide. Since there are some researches investigating the role of governments and organizations on online privacy domain but there is little research regarding users' privacy protection behaviors. This study investigates relationship between Internet users' information privacy protection behavior and environmental factors. Especially, this study focuses on users' behaviors regarding information privacy protection technology adoption. According to our research results, users' online privacy protective behaviors positively affected by governmental regulations expressed as an information privacy protection law. In addition, if user is allowed to use anonymity when he or she uses online services, they have more tendencies to adopt privacy protection technologies. The detailed research findings and contribution are discussed as well.