• Journal of the Korean Society for Nondestructive Testing
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• v.36 no.5
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• pp.370-376
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• 2016

Corrosion on the surface of a structure can generate cracks or cause walls to thin. This can lead to fracturing, which can eventually lead to fatalities and property loss. In an effort to prevent this, laser imaging technology has been used over the last ten years to detect thin-plate structure, or relatively thin piping. The most common laser imaging was used to develop a new technology for inspecting and imaging a desired area in order to scan various structures for thin-plate structure and thin piping. However, this method builds images by measuring waves reflected from defects, and subsequently has a considerable time delay of a few milliseconds at each scanning point. In addition, the complexity of the system is high, due to additional required components, such as laser-focusing parts. This paper proposes a laser imaging method with an increased scanning speed, based on excitation and the measurement of standing waves in structures. The wavenumber of standing waves changes at sections with a geometrical discontinuity, such as thickness. Therefore, it is possible to detect defects in a structure by generating standing waves with a single frequency and scanning the waves at each point by with the laser scanning system. The proposed technique is demonstrated on a wall-thinned plate with a linear thickness variation.

• International Journal of Highway Engineering
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• v.11 no.2
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• pp.195-203
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• 2009

This research wished to risk type and examine closely driver special quality and relation of traffic accidents by occurrence type of traffic accidents and traffic accidents seriousness examine closely relation with Severity. Fractionate traffic accidents type by eight, and driver's special quality for risk group's classification did to distinction of sex, vehicle type, age etc. analyzed relation with injury degree adding belt used putting on availability for security the objectivity with wave. Used log-Linear model and Logit model for analysis of category data. A head-on collision and overtaking accident, right-turn accident are high injury or death accident and possibility to associate in relation with accident type and seriousness degree. In risk group analysis The age less than 20 years in motor-cycle driver, taxi driver in 41 years to 50 years old are very dangerous. The woman also was construed to the more risk group than man from when related to car, mini-bus, goods vehicle etc. Therefore, traffic safety education and Enforcement for risk group that way that can reduce accident that produce to reduce a loss of lives at traffic accidents appearance a head-on collision and overtaking accidents, right-turn accidents should be studied and as traffic accidents weakness class may have to be solidified.

• Journal of the Korean Institute of Telematics and Electronics D
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• v.36D no.9
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• pp.56-63
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• 1999

Conventional method to improve the response time of the Cat-SPPCM was to increase fanning beam using cylindrical lens. But, in this case the temporal instability of this SPPCM is increased, and fanning beam plays a role as noise, so that it decreases the reflectivity. Thus, fanning beam must be controlled to improve the properties of SPPCM. In this paper, we propose the method to increase the reflectivity of SPPCM and decrease the response time by focusing line-shaped input beam into photorefractive crystal using cylindrical lens and decrease the temporal instability of output beam by using mixed-polarized beam instead of simple extraordinary polarized beam. Optical experiments show that the reflectivity of proposed SPPCM is increased twice and the response time is reduced by 15 times. Also, we observed that the temporal instability of SPPCM is reduced when the polarization angle of the mixed-polarized beam is between $10^{\circ}$ and $30^{\circ}$ . We used a $45^{\circ}-cut\;BaTiO_3$ crystal which has high electro-optical coefficients in optical experiments.

• The Journal of the Korea Contents Association
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• v.14 no.8
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• pp.207-219
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• 2014

Recognizing the lack of empirical study that evaluates the influence of social care services on care sufficiency of individuals with disability, we have focused our study on the following research questions: What is the level of care sufficiency for individuals with disability?, What is the profile of care for individuals with disability from both formal and informal providers?, What are the service use conditions and determinants of social care service use?. This study analyzed data of 1204 individuals with disability who needed daily assistance from 5th wave of Korea Welfare Panel Study. Results showed that 50% of the respondents experienced care deficit. 77% of the respondents received no care from informal care providers and 90% from formal care providers. Despite social care services brought by the expansion of socialization of care, the average number of social service use on care was less than 1, which suggests that socialization of care did not significantly contribute to care sufficiency. In addition, for people who are 64 or younger, social care services was substituted by care from informal care providers and for those who are 65 or older, social care services supplemented care from informal care providers.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.2
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• pp.497-507
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• 2018

Objectives: The purpose of this article was to evaluate the health related quality of life (HRQoL) of cancer survivors and to identify its predictors according to gender. Methods: The research was conducted with the data for 203 (cancer survivors?) taken from the 6th wave of the Korea National Health and Nutrition Examination Survey and the EQ-5D index score was used for the measurement of the health-related quality of life (HRQoL). The independent variables inluded socio-demographic data, health related factors (survival duration, disability, subjective health recognition), and psychosocial factors (stress, unmet medical needs). The data were analyzed by the t-test, ANOVA, and hierarchical multiple regression analysis. Results: the HRQoL of the female cancer survivors was significantly worse than that of the males in terms of their mobility, usual activities, pain/discomfort and anxiety/depression quality of life. The only statistically significant factor affecting the HRQoL of the male cancer survivors was their subjective health recognition. In the case of the female cancer survivors, the statistically significant factors were their age, subjective health recognition and unmet medical needs. Conclusions: the results of this study showed a different pattern of predictors according to the gender of the cancer survivors. Therefore, gender should be considered when assessing and addressing the individual care needs of cancer survivors, in order to obtain optimal treatment outcomes.

• The Journal of Art Theory & Practice
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• no.6
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• pp.27-50
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• 2008

This thesis examines contemporary Chinese painting after the Cultural Revolution(1966~76), focusing upon so-called "Chinese Pop art", which I termed as "Socialist Pop art". I considered the art of this period within the broader context of social changes especially after the Tienanmen incident of 1989. After the Cultural Revolution during which idolization of Chairman Mao was at its peak, one of the major changes in communist China was that an anti-Mao wave was generated in almost every social class. For example, novels that revealed the hardships during the Cultural Revolution were published. Posters that openly criticized the Maoism were also produced and displayed on the walls, and demand for democracy spurred widespread activist movements among young generations. These broad social changes were also reflected in art. A variety of art movements were introduced from the West to China, and after a period of experimentation with the new imported styles, artists began to apply the new artistic idiom to their works in order to visualize their own social and political realities they lived in. It was a shift from earlier Socialist Realism to a new expression either directly or indirectly, "Socialist Pop", an amalgam of Socialist Realism and Pop art tradition. After the 1989 crackdown of Tienanmen Square protest, when communist government quelled with brutal measures the students, workers, and ordinary people who rose for democracy, greater urge to protest the Deng Xiaoping regime emerged. This time coincided with the gradual emergence of art using Pop art vocabulary to satirize the social reality, the Socialist Pop art, along with many other art forms all with avant-garde spirit. One of the most frequent subjects of Chinese Pop art was visual images of Chairman Mao and his Cultural Revolution, and new China that was saturated with capitalism, which tainted the Chinese way of life with a Western way of consumerism and commercialism. The reason for the popularity of Mao's image was spurred by the "Mao Craze" in the early 1990's. People suddenly began to fall in a kind of nostalgia for the past, and once again, Mao Zedong was idolized as an entity who can heal the problems of modern China who had been marching towards their ultimate destination, the economic development. But this time Chairman Mao was no more an idol but just a popular, commercial product. He is no more an object of worship of almost religious nature but he has become an iconography symbolizing the complex nature of present Chinese society. During this process of depicting the social reality, Chinese artists are making the authority and sanctity of Maoism ineffective. Dealing with this new trend of contemporary Chinese art in view of "Socialist Pop art" two manners of re-creating Pop art can be illustrated: one that incorporates the propaganda posters of the Cultural Revolution; the other borrows from Chinese traditional popular imagery or mass media, such as photos taken during Mao era. What is worth mentioning is that these posters and photos of the Cultural Revolution can be identified as 'popular' media, as they were directed to educate the popular mass, thus combination of this ingenuous pop media with Western Pop art can be fully justified as a genre unique to China. Through this genre, we can discover a new chapter of the Chinese contemporary painting and its society, as their Pop art can be considered as self-portraits true to their present appearances.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.12
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• pp.327-332
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• 2016

Sting (Gordon Sumner) is a British musician and singer-songwriter. He was the principal songwriter, lead singer, and bassist for the new wave rock band 'The Police' from 1977 to 1984, before launching a solo career in 1985. With his stylish and sophisticated sensibility and musical spectra, he achieved 100 million album sales. In this thesis, after he disbanded the group THE POLICE, his career as a solo artist with his wide variety of musical colors has been acknowledged for his reputation over more than 30 years. Therefore, I analyze 'Sting' of music included in 'Straight To My Heart' and 'Be Still My Beating Heart' in. Songs in indicate that the drum part the tunes that there is in a record doesn't break away from the basic way of music. The role of the whole rhythm division through the various percussions or can see a synthesizer than the role as the cord musical instrument that there are lots of tunes placing a great deal of weight on the role as the rhythmic musical instrument more. The unique instrument-based rhythm of the early Sting and role dispensation create a unique sound that is quite different from what the musician subsequently recorded. The feature and rhythmic characteristic, which is the arrangement that appeared outstandingly in this record, I am trying to explain about the way in which I lead the basic flow of the tune through the rhythm division of the other musical instruments which I split that is, the drum beat and break away from a rhythm from the divided general way and include a percussion.

• Korean journal of communication and information
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• v.81
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• pp.272-298
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• 2017

This study aims at understanding Korean fans who are also one of the most inquisitive consumers of the Korean pop products. For this purpose, it examines how Korean fandom perceives the procedures of the K-pop's globalization and constructs different perspectives of foreign fans. Firstly, it examines Korean fandom's the national pride as the K-pop expands to the global markets. Secondly, it explores how the Korean fandom rationalizes its possessive instinct while the global fans and markets becomes increasingly important. Finally, it explores how the Korean fandom constructs the different perceptions on foreign fans. In order to observe korean fans' thoughts and activities, it participates in the interactions in the tweeters and an online community. The Korean fans' perspective reflects both on individual tastes and the social dimensions in which fans live through. Through the lens of the Korean fandom, this study attempts to explicate the Korean fans' perception on foreign fans, which reflects another dimension of the K-pop's globalization.

• Journal of Korean Home Economics Education Association
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• v.29 no.4
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• pp.101-116
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• 2017

This study aimed to investigate the determinants of confidence in courtship and marriage, childbirth and parenting of the unmarried employed of the echo boomers born between 1982-1992, using data from the 19th wave of the nationwide Korea Labor and Income Panel Study. The differences of confidence in courtship, marriage, childbirth, and parenting of the echo boomers according to sociodemographic variables, psychosocial variables, workplace related variables were examined and multiple regression analysis was conducted in order to identify the factors that affect the confidence in courtship and marriage, childbirth and parenting. The results were as follows: The level of confidence in courtship and marriage, childbirth and parenting showed a statistically significant difference depending upon socioeconomic status and psychosocial variables. However, among the workplace related variables, other than childbirth and parenting within the job satisfaction category, all other variables showed a statistically significant difference. In addition, as the determining factors affecting all issues of courtship, marriage, childbirth, and parenting, youth perceptions of Korean society revealed to be the most influential factor, followed by social support and organizational commitment.

• Korean Journal of Childcare and Education
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• v.12 no.1
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• pp.19-36
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• 2016

The purpose of the present study was to investigate the effect of child neglect and abuse by parents on school adjustment of school-aged children focusing on mediating effect of school-aged children's self-awareness and peer attachment. For this purpose, we analyzed the data of fourth wave Korean Child-Youth Panel Survey(KCYPS) including parents' child neglect and abuse, school-aged children's school adjustment, self-awareness and peer attachment. A total of 2,378 children and their parents using structural equation model of mediating effects responded to the survey. Measurement model and structure model had favorable goodness of fit and the results of structure models on each path were as follows. First, school-aged children's school adaption had negative correlations with parent's child neglect and abuse, but positive correlations with their self-awareness and peer attachment. Second, parent's child neglect and abuse influenced on school-aged children's school adjustment by partial mediators, their self-awareness and peer attachment. These findings showed practical way to increase school-aged children's self-awareness and positive peer attachment.