• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.6
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• pp.169-180
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• 2018

White light-emitting diodes (LEDs) are more economical than fluorescent lights, and provide high brightness, a high lifetime expectancy, and greater durability. As LEDs are closely connected with people's daily lives, dimming control of LED is an important component in providing energy savings and improving quality of life. In visible light communications systems using these LEDs, multiple input multiple output (MIMO) technology has attracted a lot of attention, in that it can attain the channel capacity in proportion to the number of antennas. This paper analyzes the power performance of three kinds of modulation in visible light communications (VLC) systems applied space-time block code (STBC) techniques. The modulation schemes are return-to-zero on-off keying (RZ-OOK), variable pulse position modulation (VPPM), and overlapping pulse position modulation (OPPM), and dimming control was applied. The power requirements and power consumption were used as metrics to compare the power efficiency in $2{\times}2$ STBC-VLC environments under the three kinds of modulation. We confirm that dimming control affects the communications performance of each modulation scheme. VPPM showed greater consumption among the three modulations, and OPPM showed energy savings comparable to VPPM.

• 한국체육학회지인문사회과학편
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• v.55 no.4
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• pp.443-462
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• 2016

The purpose of this study was to suggest an extensive and evolved conceptual model of community dance reflecting new tendencies, practice, and various values. For the purpose, efforts were made to categorize common properties based on various cases using qualitative data collection about 10 community dance specialists. The Practice of Community theory of Wenger(1991) has contributed to conceptualization including the new perspective on community dance, which has been the theoretical framework. Firstly, 'a community' as a basic premise is self-organizing, interactive, regional and creative. Secondly, 'practice' in community dance means openness, focused on participants, improvisation and nmind-body centering, value-oriented processes and connectivity with daily lives. Thirdly, 'social learning' can be interpreted within the framework of joint enterprise and domain, quality and status of dacne, and dance literacy embodied as a shared repertoire. Lastly, identity of community dance has been expanding the concept area as 'dance for all' reflecting ongoing properties and future-oriented values in that it pursues healing arts and relationship, amateurism collaborating with dance artists, combination of democratic citizenship and civic creativity, cultural diversity and social integration, and types of sustainable development.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.6
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• pp.933-940
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• 2013

Our country is defenseless against the aging population in society that is suddenly and rapidly increasing. This is expressed as the aging shock and aged society earthquake, warning us of the crisis in the future society. Senior citizens of Korea are a group that does not receive proper education due to various social factors, and it is a group that requires lifelong education more than any other group, and therefore, senior citizens have become a priority target for lifelong education. Thus, the need for lifelong education for seniors can be said to be in establishing a new senior citizen image so that they may live a fuller retirement by improving their abilities to appropriately adapt to the rapidly changing modern society due to the digital times. Furthermore, with the enhanced cultural level and personal desire for a fuller life in the modern society, the necessity for leisure activities has been emphasized. Instead of simply relieving stress through leisure activities, it aims at being provided with educational opportunities through leisure activities. Therefore, senior leisure activity education should be an important method for establishing the senior citizen identity of a self-oriented senior, productive senior, volunteering senior, informed senior, and a well-rounded senior, which are all the image of senior citizens in the 21st century. In addition, a specialized leisure activity program that systematically provides education for leisure activities should be performed from the perspective of lifelong education. Hence, the significance of senior citizen leisure activities as lifelong education is in improving health, enhancing sociability and realizing one's self, while improving the quality of life for senior citizens. It will be greatly meaningful for establishing the new senior citizen image in which they independently live their own lives, while not being dependent on others, as required in the 21st century.

• Cartoon and Animation Studies
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• s.47
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• pp.171-191
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• 2017

In recent years, artistic programs considering both physical and psychological changes in old age have been implemented in various fields. These programs include participatory activities such as painting, play, singing, photography, dance, cartoon animation and so on. It is known that culture and art education programs lead people to emotional growth and social interaction. In particular, culture and art education for the elderly tends to affect positively on the quality of life. However, there are still lack of teaching methods and curriculums in the filed. It is considered that cartoon has a great potential as a teaching method of culture and art education for elderly. This study aims to discuss ways to vitalize the role of cartoon using the qualitative data of four elderly participants in culture and art education programs. The case study analyses reveled that cartoon program for the elderly not only plays a role to make their daily lives more enthusiastic but also provides a social passage to communicate to world. The Cartoon program designed for the elderly was a tool to reveal their inner world to others, and shed new light on their past memories, and long for the precious moments in life. At the same time, it was a meaningful time to lessen the depth of loneliness in old age, and even to heal their physical disability and emotional conflicts. The hardest part of drawing an cartoon was when it did not turn out as they wished. Based on the study results, the researchers explored the therapeutic usefulness of cartoon for the elderly, and discussed the ways to activate it in the field of elderly welfare.

• Korean Security Journal
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• no.57
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• pp.27-55
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• 2018

The problem is that even though the cost of apartment buildings and general expenses are the same and similar tasks, there is a significant gap between them in quantity and quality. The apartment security guard needs more professional management in education and various reporting obligations. In particular, the reality of being away from the management and supervision of the National Police Agency, which is in charge of crime prevention and policing resources throughout the nation, is a task that needs to be improved quickly. Although the "security service" is a specialized area for protecting the lives and property of the people, it is managed and operated only in the category of apartment management, just because it is under the jurisdiction of the Ministry of Land, Infrastructure and Transport. This should be integrated into one cost-related law, such as the "Cost Business Act," for management and operation. Although the regulations concerning security guards under the "Joint Housing Management Act" are very limited, they should start discussing the integrated management of apartment security guards and general security guards in view of improvement of their treatment. The most realistic method would be to hire a new general security officer with a security law as a security guard in an apartment building.

• Journal of Korea Entertainment Industry Association
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• v.14 no.2
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• pp.119-129
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• 2020

Intellectual disability affects all spheres of the lives of people can be who suffer from it. Unfortunately, modern medicine cannot cure intellectual disability. However, the quality of life improved by means of physical exercise. In this study, we compared the health-related physical fitness, metabolic syndrome index and mental health between a game biking group(5 participants) and a brisk walking group(4 participants). This study used a between-subject design and verified by non-parametric test. The participants performed an exercise program with warm up and resistance training for 12 weeks. A game bike was used for the physically impaired, where the individual looked at a screen and pedaled. The fasters he pedaled the faster the object on the screen movies. We measured health-related physical fitness, metabolic syndrome index and mental health. We also measured their perceived exertion and interest during the exercise by a visual analog scale. The results before and after the exercise program showed that health-related physical fitness, metabolic risk factors, mental health level were improved in both groups. As we hypothesized before the study, the game biking group showed a statistically significantly different level on the Rating of Perceived Exertion than the brisk walking group and a higher level on the Rating of Exercise Interest during the exercise program. Our results lead to a conclusion that an exercise program with the use of a game bike improve motivation for exercise participation in intellectually handicapped participants.

• Journal of Service Research and Studies
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• v.12 no.3
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• pp.134-143
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• 2022

TThe National Cemetery is a space for realizing patriotism at the national level to honor the will of those who gave their lives for the country and to permanently venerate their loyalty and merit. The purpose of the establishment of the national cemetery is to imitate the spirit of patriotism that was sacrificed for the country and people. The state distinguishes between private death and public death as a sacrifice for the state. Furthermore, we carefully manage deaths that are classified as public. National cemeteries are the institutional space for managing such public deaths. With respect for devotion and discipline, the standards for burial and commemoration should not be based on status or class. In a national cemetery, shifting the degree of courtesy and priorities to devotion and discipline will become a true patriotism system in a democratic society. First of all, it is time to honor those who have died and those who have dedicated themselves to the restoration of national sovereignty as the highest and highest priority. This is the key to resolving the conflict that our national cemetery is experiencing and gaining public sympathy. This study is based on the premise that the national cemetery is insufficient as an open memorial space and historical space loved by the people. In addition, the implications and applicability of national cemeteries are reviewed through domestic and foreign excellent cases and high-quality and eco-friendly national cemetery construction cases in advanced countries.

• Cartoon and Animation Studies
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• s.24
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• pp.199-222
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• 2011

While Korea has actively discussed the fields of comics and animation, with an aim toward public art and publicity for cultural welfare, research on public cultural content for the underprivileged and their regions is in fact lacking. The Korean government has also tried to improve Korea's cultural welfare, but its benefits have failed to be evenly given to the underprivileged. Therefore, we need to take greater interest in the underprivileged and their regions. Korea should work to correct the unbalance among regions in the field of cultural welfare (cultural differences between the capital area and other regions, and between new towns and old), as well as improve the living environments of isolated areas. For this reason, such a public art project should be conducted from two directions. First, the underprivileged living in poor conditions should be allowed to live in clean and cultural environments. And second, public art, comics, and storytelling through animation should be formed with an eye on urban culture. This project aims to focus on improving "the quality of citizens' lives" through creating the unique characteristics and landscape of the city. It will be presented through the use of public art, which presents the elements of the city with charm and vitality. The two directions stated above are our urgent tasks. Public art, comics, and animation storytelling regarding the history, culture, and natural resources of the region will develop with the affection and pride of the citizens, and public art will help create an environment that allows people to discuss their issues. In addition, it will be cultural environments that will allow all citizens to enjoy beautiful streets and events. This project will be an opportunity to realize cultural democracy by pursuing social values such as publicity, communication, equality, and participation.

• Korean Journal of Social Welfare
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• v.57 no.4
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• pp.177-196
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• 2005

Today's employees are facing various socio-emotional problems due to the lack of appropriate supports and intervention in the workplace. These problems, however, cause considerable stress and inflict fatal damage on the quality of the employees' lives. Thus, this study analyzed the negative effects of the employees' socio-emotional problems on their stress, depression, and a sense of self-esteem. As a result, the study has identified that the problems occurred widely in the work life area such as job-related problem, predicament of retirement, workplace violence, family life area such as family relationship, child education, crisis problem, and lastly culture and health related area. This study also found that the socio-emotional problems in the three areas were the main stressors after all and they once again negatively affected depression and a sense of self-esteem. However, the role of social support, which is known to have the buffering effect on depression and a sense of self-esteem, was not sufficiently proved. This strongly implies that traditional social supports necessarily have limitations to overcome employees' socio-emotional problems in hand and thus systematic intervention toward the troubled workers in the organizational level must be required.

• Korean Journal of Social Welfare Studies
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• v.42 no.2
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• pp.381-417
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• 2011

The primary goal of this study is to examine the factors that affect how satisfied sexual minorities are with their lives. This study focuses on how sexual minorities perceive social stigma, the social influences involved in its perception, and the effects this perception has. Using stress-coping theory, this study looks at how social stigma, as a perceived stress, affects social support and self-esteem, how the stigma influences the degree to which individuals "come out" in an effort to cope, and the resultant effects of this coping mechanism on life satisfaction. The data used if from a sample of 478 individuals who self identify as gay, lesbian or bisexual. It was collected through an online survey. Using SEM, the quality was evaluated by analyzing the measurement model, and the relationship of the variables included in the theoretical model was verified by analyzing the structural model. The results of this study show that social stigma directly affects the life satisfaction of Korean sexual minorities. It significantly influences the social support they receive(from family and sexual minority peers), and their self-esteem. The degree to which the individual "comes out" is shown to affect life satisfaction as well. In contrast, the mediating effect of heterosexual support is shown to be insignificant. Based on the analyses, practical strategies regarding social stigma, social support, self-esteem, and "coming out" are suggested for sexual minorities. The social stigma should be reduced and society-scaled campaigns promoted in order to improve their level of life satisfaction. In addition, institutional protection should be developed and specialized educational courses on human rights provided which will empower these minorities with self-help mechanisms. Furthermore, issues such as establishing support system and providing a social welfare system for the sexual minority community are discussed.