• Journal of Korea Technical Association of The Pulp and Paper Industry
• /
• v.35 no.1
• /
• pp.41-47
• /
• 2003

Recently, interest in utilization plan of recycling paper have been enhanced. Therefore, this research aimed to develop the manufacture process of cellulose acetate using old newsprint by acetosolv pulping process. And the manufactured cellulose acetate was also analyzed, especially based on chemical properties. The summarized results in this research were as follows; Reaction time, kind and amount of catalyst, and ratio of liquor to material were varied during acetosolv pulping process of old newsprint. Ratio of liquor to material did not give the significant difference in reaction product. Delignification rate was increased with increasing reaction time during acetosolv pulping, but yield and degree of substitution decreased with increasing reaction time. Sulfuric acid are better catalyst than hydrochloric acid in acetosolv pulping process for old newsprint, and optimal addition amount of catalyst was 1% based on reaction material. Delignification, yield, and degree of substitution were influenced by the catalyst and reaction time. Under pulping condition of $120^{\circ}C$ in 1/12 liquor to material ratio and 60min, degree of substitution was about 0.7. The acetylation reaction was not completely caused by these reaction condition. The examination of the FT-IR spectra revealed that absorption band(1200$\textrm{cm}^{-2}$, 1,750$\textrm{cm}^{-1}$) caused by carbonyl group were confirmed.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.29 no.11
• /
• pp.1381-1388
• /
• 2005

The purpose of this study was to identify features of masstiege high-end products by comparing to original old high-end products. For this purpose, the differences in values between each consumer groups divided by preferred products types (high-end products, original old high-end products) were examined. This study was executed by consumer survey and 279 female data were used in analysis. The results are as follows. First, the value factors pursued on high-end products were constructed by factor analysis and the factors consisted of 4 elements; conspicuous, aesthetic, durable, conformity. Next, the differences in value elements between masstiege high-end products and original old high-end products were identified by t-test. The consumers preferring original old high-end products pursued conspicuous features significantly more and the consumers preferring masstiege high-end products considered aspects of aesthetic and conformity elements as more important. And according to kinds of preferring high-end product, demographic characteristics were different. The consumers who were of high age, high education and high income and married consumers preferred original old high-end products, whereas the consumers who were of low age, low education and low income and unmarried consumers preferred masstiege high-end products. Finally, marketing strategies for masstiege brand were suggested on the base of the results.

• Journal of Fashion Business
• /
• v.13 no.3
• /
• pp.99-108
• /
• 2009

The purpose of this study is to analyze the middle-aged British women's apparel purchase behavior. The results of this study can be used to present the tendency of Korean middle-aged women's apparel purchase behavior when they become the old-aged by comparing and analyzing the British women's purchase behavior. We found that they prefer to choose and purchase their clothes by their own decision-making and search for actively the new brands for old age. Strong willingness was showed that their level of consumption amounts for clothing would be the same level between middle-aged and old-aged. It was also presented that they like to see a old-aged fashion model for fashion advertisement rather than a younger one and prefer to use the expression of 'mature' rather than a stereotypical expression such as a silver, gray and gold. The segmentation of fashion market by age can not be simply standardized. We expect that the propensity for clothing purchase behavior pattern of middle-aged women will not be changed and keep the same tendency by the time of their old-aged. We expect that this research results can be used as a basic material for another study and setting up the product developments and marketing strategies.

• Korean Journal of Computational Design and Engineering
• /
• v.5 no.1
• /
• pp.1-11
• /
• 2000

The purpose of Computer Aided Design is to design good products as quickly as possible. To do this, it is important to reuse the old designs and build on them. Most engineering designers, therefore. hale studied methods for reusing old designs, and the results of their study hale been applied to new designs Unfortunately, this only involves reuse of geometric data without design knowledge. If they can design products with the geometric data, including design knowledge, of the old designed and share them through the Internet, design efficiency will be improved. In other words, one way to improve designer's productivity is to share design information that includes knowledge and scattered data across design offices. This paper introduces a shared design environment with distributed knowledge-base. A product design environment based on distributed knowledge-base is proposed, which integrates the CORBA, OLE and WWW as the network architecture, a 3D CAD system, and an expert system shell. A design example of the lens barrel of a projection television is implemented to verify the idea.

• Journal of the Ergonomics Society of Korea
• /
• v.30 no.1
• /
• pp.109-115
• /
• 2011

In this research, three topics were studied for the elderly. The first was the elderly's error characteristics for tracing task and the second was for depth perception. The characteristics were compared with the young's. Twenty two old people and twenty two young people participated in the tracing experiment, respectively. In the depth perception experiment, twenty three old people and twenty two young people participated. A depth perception apparatus and a tracing one were used in the experiment. In the depth perception error, a significant difference was not detected on gender. However significant differences were detected with age and viewing distance. In the tracing error, significant difference was detected with age, also. The third experiment was push-button operation and fifteen old people participated in the experiment. As the result, operation time error was increased with the button size and the moving distance. The result of this study will be able to be considered in its user interface design to reduce the elderly's error while using a product.

• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
• /
• 2003.10a
• /
• pp.76-80
• /
• 2003

A resource management system of for the paper-bag product company was made. The objective of the system is computering the hand writing management process to improve the performance of working process of the small company. For this, some programming and design strategies were made such as the simplification, ease to use, similarity with old system and object oriented concept. It is expected to reduce burdens and errors of hand writing and improve the efficiencies of small company.

• Journal of Korean Institute of Industrial Engineers
• /
• v.31 no.3
• /
• pp.240-247
• /
• 2005

Today's hightech society requires thousands of different products which ultimately result in billions of tons of materials discarded, most of which end up in landfills. Therefore industrial circles could not help thinking about environmental problems by regulations of government or pressures of consumer. Generally, the related research subjects are classified into both of environmentally conscious manufacturing and product recovery, where product recovery aims to minimize the amount of waste sent to landfills by recovering materials and parts from old or outdated products by means of recycling and remanufacturing (including reuse of parts and products). In this research, we constructed a model for remanufacturing various goods using a single facility and developed a dynamic programing(DP) algorithm based upon the optimal solution characterization. We showed the efficiency of the developed DP algorithm with a numerical example.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.30 no.1 s.149
• /
• pp.176-186
• /
• 2006

The Purposes of this study are to examine the relationship benefit perception of fashion product consumers and how their benefit perception influences oil long-term relationship intention, and to construct a model of long-term relationship intention. The data was obtained from a survey of 540 females over 20years old living in seoul, Gyeonggi-do, and Gwangju-city during June in 2004. It was analyzed by frequency, reliability, factor analyses. The results of the survey were: 1 , Relationship benefits perceived by fashion product consumers were informational benefit, psychological benefit, special treatment benefit, economical benefit, and social benefit. 2. Relationship benefit influenced on satisfaction, trust, commitment, and commitment influenced on long-term relationship intention finally The findings of this study are expected to strengthen the necessity of applying customer relationship management for the fashion market.

• Journal of the Korean Data and Information Science Society
• /
• v.28 no.3
• /
• pp.525-532
• /
• 2017

Recently, there shows a trend in Korea that the rate of the population entering into aging is the most rapidly increasing among the OECD countries. Consequently, This study, therefore, aims at analyzing the forms of portfolio establishment by group, the factors affecting the old age preparation, and the presence of middle-aged households' preparation for the old ages in order to forestall social problems like the poverty ration of elderly that have been caused by the rapidly aging society. The result shows that the portfolio for the old age preparation can be expanded if a combination product of finance and real estate is developed as a means of old age preparation. Upon the results of the study above, it can be seen that the old age preparations differ according to not only the demographic elements, but also the extent to how much resources one holds. Especially, the various factors affecting the holding resources vary householder by household depending on whether they prepare for the old ages or not.

• Journal of the Korean Data and Information Science Society
• /
• v.26 no.6
• /
• pp.1199-1206
• /
• 2015

into aging is the most rapidly increasing among the OECD countries. Consequently, this study aims at analyzing the forms of portfolio establishment by group, the factors affecting the old age preparation, and the presence of middle-aged households' preparation for the old ages in order to forestall social problems like the poverty ration of elderly that have been caused by the rapidly aging society. The result shows that the portfolio for the old age preparation can be expanded if a combination product of finance and real estate is developed as a means of old age preparation. Upon the results of the study above, it can be seen that the old age preparations differ according to not only the demographic elements, but also the extent to how much resources one holds. Especially, the various factors affecting the holding resources vary householder by household depending on whether they prepare for the old ages or not.