• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2000.05a
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• pp.149-152
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• 2000

The effects of selected co-surfactants on diesel removal from sandy soil were studied to increase diesel recovery from the soil by the surfactant-enhanced remediation of diesel-contaminated soil. The capability of co-surfactant for enhancing removal efficiency can be related with the interaction between its structural character and the structural peculiarity of nonionic surfactant. In the case of Tween 80, hexanol showed the great improvement in diesel recovery. Efficiency of diesel recovery decreased as hydrocarbon chain length of cosurfactant decreased. Higher content of hexanol further increased diesel recovery, but there was no significant improvement in the case of butanol and pentanol.

• Journal of the Korean Society of Clothing and Textiles
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• v.16 no.1 s.41
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• pp.3-21
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• 1992

The main objective of this study was to find out the relationship between life style types and clothing evaluatie criteriria. Social wear was selected according to the defined time, place, and occasion's. The questionnaire was administered to 640 housewives during the fall of 1988. The research problems were as follows: 1. To segment the target according to their life styles, and to profile the characteristics of the categorized life style types. 2. To determine the differences in the clothing evaluatie criteria among the various life style types. The result were as follows: 1. Five life style types were defined. They were the Achievement oriented type, the Active- leisure type, the Material oriented type, Conservative-frugal type, and the Passive-stagnant type. 2. The differences in consumer preferences at the element level evaluative criteria including color, fiber content, fabric construction, fabric design, and classes of clothes among the five life style types were also analyzed revealing partial significance.

• Journal of the Korean Society of Clothing and Textiles
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• v.13 no.1 s.29
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• pp.67-77
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• 1989

The purposes of the study were to compare the characteristics among five segments of the population (innovative communicators, innovators, opinion leaders, followers, indifferents) which were divided according to their fashion opinion leadersship and innovativeness. Thirty-one variables (thirteen fashion-related variables, five social variables, nine psychological variables, four demographic variables) were included in the analysis (analysis of variance, chi-square test). Data were obtained from 446 women living in Seoul area by self-administered questionnaire. The results of the study were as follows: there were significant differences among groups in most of fashion-related variables (fashion interest and clothing importance, four dimensions of clothing values, marketer-dominated and neutral information sources) and psychological variables (eight self-image variables) and in some of social and demographic variables (social activity, social stratum, education).

• Journal of the Korean Society of Clothing and Textiles
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• v.7 no.1
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• pp.1-9
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• 1983

This study was undertaken to explore the relationships between the personality characteristics (the rigidity and the acceptance of self and others) and the clothing behaviors according to the age and the occupation. The results were as follows; 1. In the clothing behavior, the subjects scored highest in aesthetics followed by comfort, modesty, management, dependence, interest, attention and approval in a descending order. 2. There was no significant relationship between the acceptance and the rigidity characteristics. 3. There was a highly significant relationship between the personality characteristics and the clothing behaviors. 4. There were significant differences in the rigidity characteristics and in modesty, comfort, management clothing variables according to the age. 5. There were significant differences in self-acceptance, rigidity characteristics and in management clothing variable according to the occupational status. 6. No significant interactions was found between age and occupation on personality characteristics and clothing behaviors.

• Journal of the Korean Society of Clothing and Textiles
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• v.19 no.1
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• pp.149-160
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• 1995

Consumer satisfaction and dissatisfaction is a important concept which composes the quality of life. It is especially important for fashion marketers to know the content of consumer dissatisfaction, because they can eliminate or minimize the sources of dissatisfaction to promote marketing efforts. The purpose of the study is to find out the content of dissatisfaction that consumers experience in buying process, and to see if the content of dissatisfaction differ according to consumers' buying practices and consumer charateristics. A questionaire was developed to measure consumer dissatisfaction, clothing buying behavior, clothing involvement and demographic characteristics. The questionaire was administered to 469 female adults during the spring of 1994. Social wear was selected as a clothing item for this study. The results of the study were as follows; 1. Consumer dissatisfaction in clothing buying process was analyzed into seven factors, such as sales personnel, quality and size, information and service, buying decision, product variety, shopping environment, and discounts sale. 2. According to consumers' clothing buying behavior, clothing involvement and demo- graphic characteristics, there were significant difference in consumer dissatisfaction.

• Microbiology and Biotechnology Letters
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• v.37 no.1
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• pp.85-89
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• 2009

For the purpose of the methodological development to convert the food wastes into resources, we have attempted to culture the mushroom hypha, Pleurotus ostreatus. The food-wastes were mixed with distilled water, and the mixture was autoclaved to produce fluid, which was centrifugated and used as the growth media. Concentrations of the food wastes extracts were prepared with 10, 20, 30, 40, and 50%(W/V), and the initial pH were set variously with 4, 5, 6, and 7. These were cultured for 9 days at the temperature of $25^{\circ}C$ and the rotation rate of 120 rpm. The result is that the fluid form of the mushroom hypha have been grown best at the concentration of 30% and the optimal pH was 5 and 6.

• Journal of Korea Multimedia Society
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• v.19 no.3
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• pp.626-632
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• 2016

In this paper, we propose the defect emphasis in TFT-LCD panel image. The defect emphasis image consist of S(Shape) map and B(Brightness) map. S map based on DoG(difference of gaussian) is made with the mura defect shape characteristic. And B map use defect intensity property that defect intensity is higher than background. The experiments were conducted to evaluate the performance of the proposed defect emphasis method. The results of experiments show the validity of the defect emphasis using the proposed method.

• Proceedings of the KIEE Conference
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• 2001.07b
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• pp.1147-1150
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• 2001

This paper represents a realization of a fuzzy PI control method for a speed control of BLDC motor. In other words, the gains of the PI controller is tuned by a fuzzy logic controller. Simplified reasoning methods are used for fuzzy reasoning. Fuzzy logic speed controller is designed by using the high performance of DSPchip(TMS320F240). By experiment, it is confirmed that the speed of BLDC motor well follows an command speed in the load variables or speed variables.

• Korean Journal of Child Studies
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• v.20 no.4
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• pp.43-59
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• 1999

Ideological characteristics and child rearing practices of North Korean society were studied with in-depth interviews of twelve adults who had escaped from North Korea since 1990 and with a questionnaire consisting of 17 items completed by 158 subjects who had also escaped from North Korea. There are 3 ideological characteristics of North Korea : Monotheism, collectivism, and patriarchalism. Collectivism resulted in collective behavior styles; monotheism made the hero worship of the Kim Il Sung lineage possible, and patriarchalism contributed to boy-preference and to differentiated sex-role expectations for their children. In practice, parents emphasize honesty and loyalty to the Communist Party, and they use praise as verbal reinforcement. Parents also emphasize obedience and control rather than democratic participation.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2001.04a
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• pp.279-283
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• 2001

We described an integrated management system, which is a design system of suction muffler(SMDS). SMDS constructs a virtual design system and possesses a Mutual Interfacing Module function using a Remote Analysis function and a GUI(Graphic User Interface). This system consists of a sever and clients. Client performs modeling and preprocessing, and server analyzes the results. The system uses Telnet and FTP based on TCP/IP protocol for connecting a client with a server.. It uses a PC at each work place as a basic platform for design and analysis of goods, and si able to manage a project as a unit. It is shown through an exsample that it is useful as a design tool in the fields.