• Membrane Journal
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• v.14 no.1
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• pp.53-56
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• 2004

Direct Methanol Fuel Cell (DMFC) is considered as a candidate technology for applications in stationary, transportation as well as electronic power generation purposes. To develop a high performance direct methanol fuel cell(DMFC), a competent electrolyte membrane is needed. The electrolyte membrane should be durable and methanol crossover must be low. One of the approaches to increase the stability of generally used polymer electrolyte membranes such as Nafion against swelling or thermal degradation is to bond it with an inorganic material physically or chemically. In Noritake Company, we have developed a novel method of reinforcing the polymer electrolyte matrix with inorganic fibers. Methanol crossover values measured were significantly lower than the original polymer electrolyte membranes. These fiber reinforced electrolyte membranes (FREM) were used for DMFC study and stable power output values as high 160 mW/$\textrm{cm}^2$ were measured. The details of the characteristics of the membranes as well as I-V data of fuel cell stacks are detailed in the paper.

• Journal of the Korean Ceramic Society
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• v.54 no.5
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• pp.388-394
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• 2017

Here, utilizing rhodamine B (RhB) as standard color dye, we examined the photo degradation proficiency of $Ag_2Se-Graphene-TiO_2$ nanocomposites under visible light irradiation; samples were prepared by ultrasonication techniques and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopic investigation and UV-Vis absorbance spectra examination. Our outcomes demonstrate that the $Ag_2Se-G-TiO_2$ nanocomposite showed significant photodegradation efficiency as compared with those of $TiO_2-G$ and $Ag_2Se-G$, with around 85.2% of Rhodamine B (RhB) degraded after 180 min. It is concluded that the $Ag_2Se-G-TiO_2$ nanocomposite is a competent candidate for dye pollutants.

• 대한공업교육학회지
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• v.30 no.2
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• pp.33-44
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• 2005

The purpose of this study is to suggest plans to improve the industrial high school through the inquiry of Competency-Based Education(CBE). The suggestions are as followings: (1) Selection and organization of the educational contents of industrial high school must be based on job analysis. (2) Instructional objectives must be defined as a performance objective and enabling objectives. (3) Instruction must be individualized in method, the instructional contents must be organized in the unit of module. (4) Evaluation system must be not knowledge based but performance-based. (5) Physical Environment of work shop must be organized based on facilities, equipments and machines abstracted by job analysis. (6) Competency-Based Teacher Education(CBTE) program is required to train competent teachers in practice.

• English Language & Literature Teaching
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• v.7 no.2
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• pp.103-114
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• 2002

Language plays a central role in everyday communication activities. Therefore, an individual need to be able to use language to communicate with confidence and without fear. One of the major fears that people have is the fear of communication. This fear is most of the time due to a lack of confidence in communicating in a particular language or due to poor proficiency in the language. In some cases it can also be due to attitudinal problems. In the context of teaching and learning English as a second or foreign language, students can have a great fear of using English with confidence. This fear can be an acute one and thus students may avoid using English to communicate. However, non native speakers of English need to be highly competent in the use of the English language for a variety of communicative purposes particularly in meeting the challenges of globalisation and that of the digital age. This article presents some insights on language apprehension found among communication undergraduates who are non native speakers of English.

• Journal of the Korean Dietetic Association
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• v.11 no.4
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• pp.462-472
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• 2005

College and university foodservice dietitians have to be competent for playing a role as the future food service executive as well as the present foodservice administrator in the promising foodservice industry field. The study conducted a survey to examine training needs corresponding to educational contents for the purpose of helping them acquire a new knowledge related to self-development and duty through educational training. The results of this study suggested that training needs were differed by general characteristics of dietitians, operational characteristics of food services, and training subjects. A future study should develop systematic training strategies for dietitians.

• Korean Journal of Child Studies
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• v.23 no.4
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• pp.53-70
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• 2002

Maternal interactions during mother-child problem solving tasks were analyzed by marital satisfaction, parenting stress, and child attachment security. Forty 36-to 52-month-old children and their mothers were observed at home. Mothers' ratings of marital satisfaction and parenting stress were collected by questionnaires, and Attachment Q-set assessed child attachment security. Marital satisfaction and child attachment security were negative1y related to parenting stress. Marital satisfaction, parenting stress, and attachment security were related to maternal behaviors. The relations between child's attachment security and maternal behaviors were mediated by parenting stress. Stronger child attachment security was related to lower parenting stress, which in turn contributed to competent maternal behaviors during problem solving.

• Child Studies in Asia-Pacific Contexts
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• v.6 no.2
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• pp.47-57
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• 2016

This study investigated whether Korean mothers' emotion socialization beliefs are related to emotional functioning in children differing across gender. We interviewed Korean mothers (N = 100) of first graders (55 boys; 45 girls) about their sensitivity, their reactions to children's distress, and children's emotion regulation. Two components of emotion regulation were distinguished: regulation and negativity. Results revealed that mothers' proactive sensitivity and their supportive reactions were related to their children's regulation, whereas unsupportive reactions were related to children's negativity. Child gender moderated the associations between mothers' socialization beliefs and children's emotion regulation: mothers' proactive sensitivity was more strongly associated with competent regulation in girls than in boys. Mothers' unsupportive reactions were related to increased negativity only in girls. Results are discussed from a cultural perspective, focusing on gender differences in the links between maternal socialization and children's emotional outcomes in Korea.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.2
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• pp.366-375
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• 2016

The purpose of this research is to describe the experiences of transfer students in nursing colleges. This study was based on the qualitative content analysis. To collect qualitative data, 10 personal interviews were conducted from June 2013 to September 2014. Five sub-themes emerged from the data as follows: Participants started new challenge with self-confidence; Nursing science was difficult and unfamiliar disciplines to them; Firstly, they had no place in nursing department, but got places of their own over time; They managed to hold their own in confronting with difficulties; They consequently made personal upgrades in their life. The results of this study could guide nursing faculties to understand what kind of burdens transfer students experienced, how they had adapted to them, and how to support them to realize their full potential to grow into competent nurses.

• Food Science and Biotechnology
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• v.16 no.1
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• pp.8-17
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• 2007

The main purpose of flavor research using conventional extraction methods, such as solvent extraction, distillation, and dynamic headspace, is to effectively extract, identify, and quantify flavor volatiles present in food matrices. In recent flavor research, the importance of understanding flavor release during mastication is increasing, because only volatiles available in the headspace contribute to the perception of food 'flavors'. Odor potency differs among flavor volatiles, and the physicochemical characteristics of flavor volatiles affect their release behavior and interaction with various food matrices. In this review, a general overview of flavor release and flavor-food interactions within frozen dessert systems is given with emphasis on chemical, physiological, and perceptual aspects. Chemical and sensory analysis methods competent for investigating such flavor-food interactions are illustrated. Statistical analysis techniques recommended for data acquired from such experiments are also discussed.

• Journal of Families and Better Life
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• v.22 no.1
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• pp.181-191
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• 2004

The purpose of this study was to examine the social support network for divorced single mother families. The data were gathered through in-depth interviews with seven divorced single mothers who had at least one school-age child. Qualitative analysis of data showed that divorced single mothers evaluated themselves based on other people's perception. There were mainly three different kinds of self-images, which were “a competent divorced woman,” “a bad child to my parents,” and “a socially weak person.” We also found that there were two factors that influenced the everyday lives of single mothers: all of them .;offered hardships in living as a divorced woman with children, and they also had to deal with the weakened solidarity with family of origin, relatives, and neighbors. Single mothers shared common problems yet their lifestyles and adjustment strategies were diverse. Therefore, diverse social welfare policies for education and counseling for single mothers are urgently needed to support and empower divorced single mothers.