• Progress in Superconductivity and Cryogenics
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• v.25 no.2
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• pp.10-13
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• 2023

High-T_C superconductivity (HTSC) has been the central issue in the field of condensed matter physics for decades. An essential part of the research on superconductivity is finding new exotic superconductors. It was recently suggested that Ir-substituted La_0.7Sr_0.3MnO₃ (LSMIO) is a new high-T_C superconductor. However, systematic studies to experimentally verify the superconductivity have not been done. Here, we report the growth processes of LSMIO thin films and their electrical transport properties. We observed a clear negative correlation between the intensity of the laser utilized for film deposition and the Curie temperature of the deposited film. We attributed this effect to the suppression of Sr concentration in the LSMIO films as the laser intensity increased. However, our LSMIO films show conventional ferromagnetism instead of HTSC. To realize the HTSC in LSMIO systems, further exploration of diverse compositions of LSMIO compounds is essential.

• Convergence Security Journal
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• v.23 no.2
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• pp.11-25
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• 2023

Since President Biden's inauguration, significant cyberattacks have occurred several times in the United States, and cybersecurity was emphasized as a national priority. The U.S. is advancing efforts to strengthen the cybersecurity both domestically and internationally, including with allies. In particular, the Biden administration announced the National Cybersecurity Strategy in March 2023. The National Cybersecurity Strategy is the top guideline of cybersecurity and is the foundation of other cybersecurity policies. And it includes public-privates as well as international policy directions, so it is expected to affect the international order. Meanwhile, In Korea, a new administration was launched in 2022, and the revision of the National Cybersecurity Strategy is necessary. In addition, cooperation between Korea and the U.S. has recently been strengthened, and cybersecurity is being treated as a key agenda in the cooperative relationship. In this paper, we examine the cyber security strategies of the Trump and Biden administration, and analyze how the strategies have changed, their characteristics and implications in qualitative and quantitative terms. And we derive the implications of these changes for Korea's cybersecurity policy.

• Journal of Korea Entertainment Industry Association
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• v.13 no.6
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• pp.1-14
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• 2019

This study explored ways to activate tourism promotion centers located in 23 regions of Gyeongsangbuk-do and carried out qualitative research through FGI(Focus Group Interview) to the heads of tourism promotion agencies, public officials, and professors. The FGI(Focus Group Interview) analysis results discussed the problems of tourism promotion and information center facilities recognized by stakeholders in Gyeongsangbuk-do and service improvement cooperation. At a time when the importance of the tourism industry is being emphasized, it is time to expand and improve the facilities of the tourism promotion center as a tourism information facility for Koreans and foreigners. Gyeongsangbuk-do Province has a natural environment and unique tourism resources that can become a tourist attraction in South Korea. In particular, four topics were drawn: providing satisfaction with visitors linked to regional economic revitalization cooperation and tourism guidance, and measures to boost revenue generation at public relations centers and information centers in Gyeongsangbuk-do.

• Journal of Korea Entertainment Industry Association
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• v.13 no.7
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• pp.193-203
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• 2019

Family films with insight of the society are now recognized as significant texts to communicate with audience from the beginning of the history of film and to reflect various viewpoints on changes of the times and socio-cultural context. In such aspect, the films of Hirokazu Kore-eda are very significant in that they suggest very sharp view on modern society through family narrative. His family narratives not only presented a profound reflection on the modern society and human relations through themes on death, loss, severance, and alienation, but also formed a public sympathy based on success in the box-office numbers despite his heavy subjects. His such achievement is closely related to the format of spatial representation to record 'time' and 'daily life' as well as the family film as a narrative form to draw the meaning of a family. Therefore, this study analyzes the family narrative and the format of spatial representation in the films of Hirokazu Kore-eda, and could find the film form where life and space closely communicate each other to reach the topic. This study, concentrating on the spatial representation and the roles and meanings of formal factors in family narrative, can find its own value in its expansion out of the previous studies which adopted macro perspectives on the trend of the times.

• Journal of Korea Entertainment Industry Association
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• v.13 no.7
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• pp.15-23
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• 2019

This paper aims to identify the characteristics implied in the process of change of Stephen Sondheim's musical style and to derive the structural communication tools that connect the creator and audience and the implications. The strategies that appear in Sondheim's musical works are the following. First, Sondheim's early musical works follow the principles of book musical and emphasize the integration faithful to the basic elements such as the rhythm and meaning of the lyrics. Second, in the era of early postmodernism, Sondheim attempts the principle of extreme deconstruction through the concept musical Company and pursues rational thought through fragmented dramatic flow. Third, while maintaining dramatic linearity to overcome the lack of immersion caused by extreme deconstruction, Sondheim realizes a more elaborate and formalized fusion style of the principles of integration and deconstruction through the choruses and the songs of the characters in Little Night Music and Sweeney Todd. Finally, Sondheim attempts multiple experiments to break down the boundaries of act and scene and to express new subject matters through his works such as Sunday Park with George and Into the Woods. In conclusion, Sondheim's fusion experiments and strategies are the process of finding a framework and a medium of communication to induce dramatic immersion of audience and at the same time create rational thinking about social problems to deliver the message of the creative work with the leading aesthetics of the modern musical's box-office success.

• Journal of Korea Entertainment Industry Association
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• v.13 no.7
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• pp.479-485
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• 2019

The purpose of this study was to explore practical direction of university general education through considering the goal and value by analyzing the effect of learning in students participating in general eduction class on skin care based on service learning. The subjects were 30 students in which female (n=24; 80%) and Juniors (n=16; 53.3%) are most common. Their most common major and religion were humanities and social sciences (n=12; 40.0%) and no-religion (n=21; 70%), respectively. The difference between pre- and post-service learning was analyzed to determine the effect of the service learning on the self-efficacy and the quality of life and the results showed significant difference, indicating the positive effect of service learning in improving the self-efficacy and the quality of life. The score of satisfaction with service learning was found to be 4.12, indicating high satisfaction and the intention to retain service learning was found to be 3.99, indicating they have the intention to retain service learning. In addition, there was no difference in the satisfaction with and the intention to retain service learning depending on the characteristics such as gender, grade, major, and religion. These results showed that the general eduction class on skin care based on service learning had positive effect on the self-efficacy and quality of life of learners. There effects are expected to helpful, through university education in developing a sense of community and strengthening social responsibility of learners as social identities.

• Journal of Korea Entertainment Industry Association
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• v.13 no.8
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• pp.627-633
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• 2019

The purpose of this study was to investigate the effect of white noise on memory and attention of local community elderly during computer-based cognitive rehabilitation program(COMCOG). 30 elderly subjects were recruited and conveniently allocated into experimental and control group. Experimental group subjects carried out COMCOG with white noise. Control group subjects received COMCOG for 30 minutes, 3 times per week for 6 weeks. Neurocognitive funtion test(CNT) were used to evaluate memory and attention during pre and post. The most CNT outcome at post was significantly improved than the pre outcome in the both group(p<.05). And the experimental group showed significantly difference from control group(p<.05). The result of this study show that the COMCOG with white noise may be appropriate for improving memory and attention in elderly. This will enable the application of COMCOG with white noise in cognitive rehabilitation therapy of local elderly and it will help guide the selection of the therapist as one therapeutic basis

• Journal of Korea Entertainment Industry Association
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• v.13 no.5
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• pp.25-36
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• 2019

The purpose of this study was to investigate the effect of fast food intake, choice, and satisfaction on age among 311 people living in the metropolitan area. The frequency of fast food intake was high in the 20s and 30s, and those in the 40s and over 50s were low, showing a significant difference according to age. Costs for fast food purchases mainly ranged from 5,000 won to 7,000 won. Major sources of information on choosing fast food were mainly from friends and the internet in 20s, and mass media from over 30s. Thirty-nine percent of subjects responded that their dietary habits changed after fast food intake, and the most changes was to like spicy food, followed by eating-out times increased. The factors affecting the choice of fast food were mainly easy to eat, followed by time was not influenced and taste, and taste showed significant difference according to age. Among the subjects who were worried about fast food, 30s showed mainly increase in body weight and over 50s had health problem, and a significant difference was observed according to age. For the improvements in fast food intake, subjects answered in nutrition, hygiene and price in order. Fast food brands, services, menus were the most satisfied in 30s, and 40s were the most unsatisfied, and there was a significant difference. In conclusion, the frequency of fast food intake was higher in young people, and the choice of fast food and satisfaction appeared to be significantly influenced by age. Therefore, data are required to recognize and practice a balanced diet by activating studies on the fast food intake of middle-aged and elderly people and understanding consumer changes.

• Journal of Korea Entertainment Industry Association
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• v.13 no.5
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• pp.119-126
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• 2019

Watching movies is common on a big screen like a theater or on a big-screen TV. nowadays, small platform such as mobile devices is increasing rapidly for watch a movie. These changes are deeply related to the advent of Internet-based video streaming services such as OTT. OTT's development has provided in free video viewing system without using the set-top box is free from the limitations of time and space. Leading the market is Netflix[1], which started its business with Internet-based DVD rental service. Netflix, which is growing in tandem with the mobile market, had 193.26[2] million members as of the end of 2018. Other OTT participating companies include content-based Pooq, TVing, platform-based Olleh TV Mobile, Oksusu and LTE video portal. The size of such new growth projects has grown gradually, with 25.4 percent of all smartphone users currently watching video content with small mobile devices. Therefore, de-largeization, it is thought that visual language is needed for viewing small mobile devices that are capable of OTT services. To this end, this paper will identify the problem in viewing popular video content with small mobile devices and Survey and study its impact on viewers using the questionnaire.

• 한국노년학
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• v.29 no.4
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• pp.1261-1275
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• 2009

Age related decrease of muscle strength, balance, and gait abilities bring about physical inactivity in the elderly. Virtual reality (VR) training has been used successfully to rehabilitate functional balance and mobility in elderly subjects. This study was aimed at determining the effect of VR-based exercise programs by using a video game on the muscle strength, balance, and gait abilities in the elderly. 48 old people were randomly divided into two groups; VR-group (men: 11, women: 14, age: 68.42yrs) and control group (men: 10, women: 13, age: 67.58yrs). VR-group performed an exercise program twice a week for 8 weeks and control group had no intervention. The VR-based exercise program was composed of warm up(10 mins), VR-program(40 mins), and cool down(10mins). It was performed by playstation eyetoy play that provided visual and auditory feedback as well as movements of the upper and lower extremities. Muscle strengths of the knee and ankle were measured using manual muscle tester. Static balance was estimated using computerized posturography. Dynamic balance was measured by Timed up and go test (TUG), Functional reach test (FRT). 10m walk test and 6-min walk test were used to assess gait abilities. After the completion of the VR-exercise program, muscle strength, balance, and gait abilities were improved significantly (p<0.05). In conclusion, the VR-based exercise program showed improvement on the muscle strength, balance, and gait ability in the elderly. This exercise program is both effective and interesting for this age group.