• Korean Institute of Interior Design Journal
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• v.15 no.5 s.58
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• pp.306-313
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• 2006

Digital simulation which was introduced to the architectural field due to the rapid growth of computer graphics, gave birth to a new type of contents called 'virtual reality', led by the interaction with the users and real time processing. The public attention is drawn to the virtual reality's potential as a next generational space simulation it, having the unique characteristics of 'simulation', 'interactivity', 'tole-presence', and 'immersion', is capable of taking a virtual tour of a space with a size equivalent to that of a real space, as well as proceeding with the design progress. Nonetheless, many problems impeding CPU's real time processing of an excessively loaded architectural model data have been pinpointed over the time. Yet such GPU based game engines as 'DirectX' and 'OpenGL', developed to deal with these impediments, have not been easily applied to the architectural simulation in the design process, due to the high license cost and the specific technical requirements for the system. The virtual reality has been developed and distributed centering around the gaming field, and game developers recently show a greater tendency to include level editors in the package for the expandability purpose. Thus, we plan to propose architecture simulation which utilizes level editors in this study. In addition, the compatibility of the game engine based level editors of Quake and Unreal which form the standards for the open source FPS games, based on VRML, the standard format for the virtual reality, was compared and analyzed. Taking the example of Villa Savoye of Le Corbusier, its application possibility as an architecture simulation was assessed, by measuring the extent to which the performance of such characteristic features of the virtual reality as interactivity, immersion, and tele-presence, was improved.

• Journal of Korean society of Dental Hygiene
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• v.12 no.2
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• pp.355-363
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• 2012

Objectives : The purpose of this study was to examine the influential factors for denture-wearing elderly people's denture satisfaction and subjective oral health and the relationship between the two in an effort to provide some information on the oral health promotion of the elderly. The subjects in this study were 192 senior citizens who were residing in the city of Busan and were wearing denture. Methods : The collected data were analyzed by the statistical package SPSS 18.0. To see whether there would be any differences in subjective oral health awareness according to general characteristics and denture-related characteristics, $x^2$-test was carried out, and t-test or one-way ANOVA involving Duncan post-hoc analysis was utilized to look for any possible gaps in denture satisfaction according to those characteristics. Results : 1. Concerning oral health awareness by general characteristics, there were significant differences according to gender and the form of health insurance subscription. 2. As for subjective oral health awareness by denture-related characteristics, there were significant gaps according to denture-washing frequency. 3. Regarding denture satisfaction by general characteristics, there were significant differences in satisfaction with denture fixation according to living arrangements. 4. As to denture satisfaction by denture-related characteristics, there were significant differences in satisfaction with mastication and with fixation according to the type of denture. 5. Better subjective oral health awareness led to better satisfaction with mastication, better satisfaction with fixation and better aesthetic satisfaction. 6. In relation to subjective oral health awareness and denture satisfaction, that had a significant relationship to satisfaction with mastication and with fixation. Conclusions : The above-mentioned findings showed that the denture satisfaction of the denture-wearing senior citizens was linked to their subjective oral health awareness. Therefore it will be possible to improve denture-wearing elderly people's quality of life when oral health plans geared toward boosting their denture satisfaction are carried out.

• Journal of Korean society of Dental Hygiene
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• v.12 no.2
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• pp.327-334
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• 2012

Objectives : The purpose of this study was to examine the self-esteem and job-seeking efficacy of dental hygiene students in an attempt to provide some information on career guidance, counseling and the development of employment programs by colleges, as self-esteem seemed to be one of integral variables to affect job-seeking efficacy. Methods : The subjects in this study were the dental hygiene students in three different colleges in South and North Jeolla Provinces. After a self-administered survey was conducted, the answer sheets from 562 respondents were analyzed by the SPSS(Statistical Package for the Social Science) WIN 12.0. Results : 1. The students investigated got a mean of 2.43 in self-esteem, which was not a high score. The sophomores had a better self-esteem than the freshmen and juniors, and the gaps among the respondents in each subfactor of self-esteem were significant($p^*$ <0.01, $p^{**}$ <0.05). 2. The students got a mean of 3.12 in overall job-seeking efficacy, and there were significant differences among them in each subfactor of job-seeking efficacy($p^*$ <0.01). 3. The freshmen were ahead of the sophomores and juniors in job-seeking efficacy, and the gaps between the former and the latter were significant($p^*$ <0.01). 4. There was a significant relationship between the self-perceived self-esteem and job-seeking efficacy of the students. A higher self-esteem led to a better job-seeking efficacy(p<0.01). Conclusions : The above-mentioned findings illustrated that a higher self-esteem had a more positive effect on job-seeking efficacy. Therefore the development of programs geared toward boosting the self-esteem of dental hygiene students is required, and educational institutions should provide quality self-esteem programs for students to plan and prepare for their future, to make the right career choice, to improve their vocational adjustment, to keep pursuing self-development and to build the right values.

• Journal of the Korean Society of Food Culture
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• v.14 no.3
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• pp.211-224
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• 1999

The purpose of this study was to investigate the understanding of dietary consciousness and define the relationship of housewife attitude of middle class residence in Puchon city. Questionnaires were collected 282 housewives in Puchon city. Data were analysed with SAS software package for F-test and Duncan's multiple range test. The main findings of the research were as follows: The food related perchasing place was supermarket(91%), ordinary market(77%), department store(68%), special store(58%), common purchase(37%), convenience store(22%) and communication marketing(13%). The clothing perchasing place showed in the order of department store(71%), special store(65%), ordinary market(52%), common purchase(23%), supermarket(18%), convenience store(15%) and communication marketing(10%). Dietary cosciousness of housewife on foods, clothing, and housing related items was significantly different, specially 20's housewife was concerned about foods and 30's housewife was housing(p<0.05). The behavior consciousness of housewife was significantly different between age, education level, family type and income(p<0.05). Highly educated housewife showed a tendency to spend money and times for food related fields, and to buy clothes in a department store for breaking stress(p<0.05). However, low education level and extended family type housewife got more conservative consciousness on traditional fermented food making(p<0.05). Most of young housewife answered that the making of bread, cookies, soybean paste soup, children clothes and handicraft led to positive consciousness(p<0.05). Especially high life satisfaction housewife preferred to make a dosirak(lunch box), dinner, children clothes and handicraft(p<0.05).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.3
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• pp.1073-1080
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• 2013

Owing to 88 Olympic, social atmosphere changed to more freely and abundant liquidity, which caused by trade surplus, had led to the surge in real estate prices. Accordingly, The Roh Taewoo government announced the construction of five new towns, Bun-dang, Il-san etc. The Kim Youngsam government had dramatically enhanced the transparency of transactions on real estate field by introducing real-name transaction system. Whereas the Kim Daejung government carried out real estate stimulus package to early recovery from Asian financial cirsis. But, the Roh Muhyeon government conducted strongly suppressing polices. This report want to testify governments' real estate polices and their effectiveness on the real estate market after '90s using VAR model.

• Journal of Korean Society for Quality Management
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• v.49 no.3
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• pp.433-446
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• 2021

Purpose: The main purpose of this study is to analyze the case of the transparent PET bottle resource circulation project of BYN Black Yak Co., Ltd., present implications, and propose ways to spread it in the future. Methods: In this study, the logic of the Double Diamond Model is applied to analyze the development process of sustainable fashion made from BYN Black Yak Co., Ltd.'s PET Bottle Resource Circulation System. Results: The K-rPET Resource Circulation Project of BYN Black Yak Co., Ltd. is recognized as a best example for its contribution to eco-friendly activities, solving social problems, raising consumer awareness, and sharing recycling habits. Before the plastic bottle becomes a garment, five steps are taken (discharge of PET bottle → collection of PET bottle → recycling of PET bottle → fabrication of yarn → production of the finished product out of the fabric). BYN Black Yak Co., Ltd. has successfully commercialized it by recycling reverse-recovery PET bottles by making solutions to problems that have not been solved at each stage. Conclusion: In addition to efforts to find and strengthen weak links presented in the Theory of Constrains (TOC), it appears to have systematically carried out activities to convert stakeholder discomforts into a package of gain points. As shown in the slogan "We are all in!" the proposal and implementation for the completion of a true environmental system is judged to have truly performed ESG management well for the company's business. ESG management activities at BYN Black Yak Co., Ltd. are expected to continue.

• The Korean Journal of Franchise Management
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• v.13 no.4
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• pp.1-12
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• 2022

Purpose: In 2020, the franchise industry accomplished a significant growth compared to the previous year, as the number of franchise companies increased by 9.0% while the number of franchise brands increased by 12.5%. Despite growth in size, the Korean franchise industry underwent many negative incidents, such as franchise ownership sales to private equity funds, that led to deterioration of businesses. From this point of view, this study aims to make various proposals to help policy makers develop franchise industry policies by analyzing trends of the current and previous presidential administrations' franchise policies and regulations using newspaper articles. Research design, data and methodology: A total of 7,439 articles registered in Naver API from February 25, 2013 to November 29, 2021 were extracted. Among them, 34 unrelated video articles were deleted, and a total of 7,405 articles from both administrations were used for analysis. The R package was used for word frequency analysis, word clouding, word correlation analysis, and LDA (Latent Dirichlet Allocation) topic modeling. Results: The keyword frequency analysis shows that the most frequently mentioned keywords during the previous administration include 'no-brand', 'major company', 'bill', 'business field', and 'SMEs', and those mentioned during the current administration include 'industry' and 'policy'. As a result of LDA topic modeling, 9 topics such as 'global startups' and 'job creation' from the previous administration, and 10 topics such as 'franchise business' and 'distribution industry' from the current administration were derived. The results of LDAvis showed that the previous administration operated a policy based on mutual growth of large and small businesses rather than hostile regulations in the franchise business, whereas the current administration extended the regulation related to franchise business to the employment sector. Conclusions: The analysis of past two administrations' franchise policy, it can be suggested that franchisors and franchisees may complement each other in developing the Fair Transactions in Franchise Business Act and achieving balanced growth. Moreover, political support is needed for sound development of franchisors. Limitations and future research suggestions are presented at the end of this study.

• Journal of Biosystems Engineering
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• v.7 no.2
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• pp.18-29
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• 1983

A low cost and versatile data acquisition system for the field and laboratory use was developed by using a single board microcomputer. Data acquisition system based on a Z80 microprocessor was built, tested and modified to obtain the present functional system. The microcomputer developed consists of 6 kB ROM, 5 kB RAM, 6-seven segment LED display, 16-Hex. key and 8 command key board. And it interfaces with an 8 channel, 12 bits A/D converter, a microprinter, EPROM programmer for 2716, and RS232C interface to transfer data between the system and HP3000 mini-computer manufactured by Hewlett Packard Co., A software package was also developed, tested, and modified for the system. This package included drivers for the AID converter, LED display, key board, microprinter, EPROM programmer, and RS232c interface. All of these programs were written in 280 assembler language and converted to machine codes using a cross assembler by HP3000 computer to the system during modifying stage by data transferring unit of this system, then the machine language wrote to the EPROM by this EPROM programmer. The results are summarized as follows: 1. Measuring program developed was able to control the measuring intervals, No. of channels used, and No. of data, where the maximum measuring speed was 58.8 microsec. 2. Calibration of the system was performed with triangle wave generated by a function generator. The results of calibration agreed well to the test results. 3. The measured data was able to be written into EPROM, then the EPROM data was compared with original data. It took only 75 sec. for the developed program to write the data of 2 kB the EPROM. 4. For the slow speed measurements, microprinter instead of EPROM programmer proved to be useful. It took about 15 min. for microprinter to write the data of 2 kB. 5. Modified data transferring unit was very effective in communicating between the system and HP3000 computer. The required time for data transferring was only 1~2 min. 6. By using DC/DC converting devices such as 78-series, 79-series. and TL497 IC, this system was modified to convert the only one input power sources to the various powers. The available power sources of the system was DC 7~25 V and 1.8 A.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.29 no.3
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• pp.153-161
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• 2023

The worldwide effects of COVID-19 have led to a surge in online shopping and contactless services. The consumption pattern has caused the issues such as the environmental pollution together with the increase of plastic waste. Reducing the reliance on the petroleum based plastic use for the package and replacing it with environmentally friendly material are the simple ways in order to solve those problems. Paper is an eco-friendly product with high recyclability as the food packaging materials but has still poor barrier properties. A barrier coating on surface of the paper can be achieved with the proper packaging materials featuring water, gas and grease barrier. Polyethylene (PE) or polypropylene (PP) coatings which are generally laminated or coated to paper are widely used in food packaging applications to protect products from moisture and provide water or grease resistance. However, recycling of packaging containing PE or PP matrix is limited and costly because those films are difficult to degrade in the environment. This study investigated the recyclability of modified acrylic emulsion coating papers compared to PE and PP polymer matrixes as well as their mechanical and gas barrier properties. The results showed that PE or modified acrylic emulsion coated papers had better mechanical properties compared to the uncoated paper as a control. PE or PP coating papers showed strong oil resistance property, achieving a kit rating of 12. Those papers also had a significantly higher percentage of screen reject during the recycling process than modified acrylic coated paper which had a screen rejection rate of 6.25%. In addition an uncoated paper had similar value of a screen rejection rate. It may suggest that modified acrylic emulsion coating paper can be more easily recycled than PE or PP coating papers. The overall results of the study found that modified acrylic emulsion coating paper would be a viable alternative to suggest a possible solution to an environmental problem as well as enhancing the weak mechanical and poor gas barrier properties of the paper against moisture.

• Journal of Korean society of Dental Hygiene
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• v.11 no.6
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• pp.1005-1016
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• 2011

Objectives : The purpose of this study was to examine the awareness of mothers on their children's oral health and their concern for that by socio-demographic characteristics and the relationship of their awareness of methods of dental-caries prevention to their practice of the methods. Methods : The subjects in this study were 337 guardians of preschoolers at kindergartens and daycare centers. A self-administered survey was conducted from April 25 to May 27, 2011, and the collected data were analyzed by the statistical package SPSS 18.0. Results : 1.Self-rated concern for children's oral health, 87.7 percent and 12.1 percent replied, "So-so." Whether they were working or not and whether they were mainly responsible for child rearing made significant differences to that(p<.05). 2. As to subjective awareness of their children's oral health, the largest group of the mothers answered "So-so." (44.9%) The second replied that their children were in good oral health(40.5%), and the third group in poor oral health(14.2%). 3. The relationship between self-rated concern for their children's oral health and awareness of methods of caries prevention, statistically significant differences were found according to toothbrushing education and sealant(p<.05). There were no statistically significant differences in practice, but application of fluoride was the least. 4. The relationship between self-rated awareness for their children's oral health and awareness of the preventive methods of caries, there were statistically significant gaps in awareness of toothbrushing education(p<.05). In practice, statistically significant gaps were found in practice of toothbrushing education and sugar-intake restriction(p<.01). 5. In regard to the correlation between awareness and practice of the preventive methods of caries, awareness of all the factors involving toothbrushing education, sealant, application of fluoride and restriction of sugar intake had a significant positive correlation to practice of them. Better awareness led to better practice. Conclusions : In order to ensure children's successful oral health care, more authentic education of how to prevent dental caries should be offered by experts such as dental hygienists and dentists. Especially, detailed information on application of fluoride, restriction of sugar intake and pit and sealant should be provided for mothers to help their children to stay away from dental caries.