• Journal of the Korean Society of Propulsion Engineers
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• v.15 no.5
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• pp.72-81
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• 2011

In order to understand the operation characteristics and major design parameters of a dual combustion ramjet engine, a fundamental analysis model based on gasdynamics and thermodynamic theories was established. The preliminary performance analysis was accomplished and the results clearly describe the intimate relationship between air inlets, gas generator, and supersonic combustor. The methodology presented provides a means for quantitatively determining the geometries of the gas generator and supersonic combustor and assessing the effects on performance of each of the engine components. Also the design results for a basic configuration were provided.

• Archives of design research
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• v.13
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• pp.123-137
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• 1996

Weaving, is an ideal subject for study to designer who is concerned with interrelationship between art and technology. Double cloth is a two layered fabric that can be woven on the loom with more than 4 harnesses, is often used to produce special woven fabric such as double width fabric or reverse pattern fabric, etc, in textile industry. Because of the attractive characteristic of two layered structure, double cloth technique can be applied as expressive media in fiber art requiring aesthetics and creativty. in the work, the concept, types, and characteristics of double weave have been studied through literature survey and sample production and the potential characteristics of this technique is, especially, emphasized by analysing the representative works of artists specilized in a double weave. Double weave technique can provide various images or forms throught the variation of structures and expressive styles and therefore suggests another characteristic expression creative means for weaver to develope.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.11
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• pp.5549-5558
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• 2013

This study is aimed at qualitatively looking into multi-cultual family mothers' experiences in children's bilingual education. The subjects for the study were seven married immigrant Vietnamese women with elementary school children who have recently finished bilingual education. After recording their interviews and then transcribing them, the data was analyzed by utilizing comparative analysis method. The results were divided into three categories of experiences: emotional, identical, and relational aspects. The results of this study will offer information about necessary support for bilingual education to multi-cultural family members.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2011.04a
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• pp.318-325
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• 2011

In order to understand the operation characteristics and major design parameters of a dual combustion ramjet engine, a fundamental analysis model based on gasdynamics and thermodynamic theories was established. The preliminary performance analysis was accomplished and the results clearly describe the intimate relationship between air inlets, gas generator, and supersonic combustor. The methodology presented provides a means for quantitatively determining the geometries of the gas generator and supersonic combustor and assessing the effects on performance of each of the engine components. Also the design results for a basic configuration were provided.

• Journal of Educational Research in Mathematics
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• v.25 no.2
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• pp.189-206
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• 2015

There has been a recurring call for using visual representations in textbooks to improve the teaching and learning of proportional reasoning. However, the quantity as well as quality of visual representations used in textbooks is still very limited. In this article, we analyzed visual representations presented in a Grade 6 textbook from two perspectives of proportional reasoning, multiple-batches perspective and variable-parts perspective, and discussed the potential of the double number line and the double tape diagram to help develop the idea 'things covary while something stays the same', which is critical to reason proportionally. We also classified situations that require proportional reasoning into five categories and provided ways of using the double number line and the double tape diagram for each category.

• The Journal of the Korea Contents Association
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• v.12 no.2
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• pp.222-231
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• 2012

In order determine potential correlations of multicultural family's male spouses' bicultural stress and communication with their marital satisfaction, this study surveyed male spouses of foreign female participants in a variety of multicultural family assistance programs available at national marital immigrants assistance centers and healthy family assistance centers of Korea, The results of this survey can be summed up as follows: First, with regard to subordinate categories of bicultural stress, it was found that cultural shock (M= 4.32) scored the highest mean points in bicultural stress, while perceived hostility scored the lowest mean points in bicultural stress, where the higher points indicate the higher bicultural stress. Secondly, in terms of cultural adaptation stress, it was found that the group exposed to higher cultural adaptation stress felt more satisfied at marital life. Thirdly, with regard to communication with foreign female spouses, it was found that frequently communicating group had higher marital stability. Finally, it was found that communication worked as a mediator in potential effects of bicultural stress on marital satisfaction.

• Proceedings of the KSLP Conference
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• 2008.03a
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• pp.19-19
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• 2008

• Proceedings of the Korean Magnestics Society Conference
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• 1993.03a
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• pp.84-85
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• 1993

• Journal of the korean academy of Pediatric Dentistry
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• v.34 no.3
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• pp.447-453
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• 2007

The purpose of this study was to investigate the relationship between morphology and number of deciduous teeth and the occurrence of other dental anomalies in their successors, and to evaluate the necessity of early diagnosis of dental anomalies in the primary dentition. Prevalence of double teeth and congenital missing teeth was investigated in 254(134 boys, 120 girls) panoramic radiographic films, taken by 2 to 7-year-old children in Chonnam National University Hospital from 2000 to 2005. And then it was examined that relationship of anomalies of the primary dentition and their successors. Among them 11 children(6 boys, 5 girls) had double teeth or missing teeth. And prevalence of the double teeth was 1.6% and missing teeth was 3.1%. One subject had double teeth in in the mandible and missing teeth in the maxilla. Of the 11 cases of dental anomalies in primary dentition, 7 cases had congenital missing tooth in their successors. This study suggests that the dental anomalies in the primary dentition induced high prevalence of the congenital missing of permanent successors in the permanent dentition.

• Journal of International Area Studies (JIAS)
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• v.22 no.1
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• pp.67-90
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• 2018

France has allowed a deprivation of nationality for terrorism since 1996 Law. After then, a series of law revision (1998, 2006 law and 2010, 2015-2015 reform tries) have not only linked an act of terror with nationality deprivation but also put the dual national and their deprivation at the centre of dispute. Both 2010 Immigration Law by Sarkozy and 2015-2016 constitutional amendment by Hollande had been not adopted but have combined immigrants and security issue together by firmly solidifying the relationship between dual national and terrorist. Especially in 2015-2016, the constitutional amendment that failed to be adopted has extended a state of emergency and left the nationality deprivation of dual national as controversial issue. After over 4 months of discussion, the amendment that contains a clause of a state of emergency and extension plan for nationality deprivation was abolished but the dual national issues which had been non-politicized has now become politicized, defined as security issues and finally securitized. It shows very two-stage process of securitization argued by Copenhagen school including Buzan. The importance of securitization notion by Copenhagen school lies on the fact that it scrutinizes the constructive elements of the process of securitization. The concept of securitization allows us to see the problem of the process that defines a non-politicized issue as security one by making it political matter. Applying this process of securitization into the controversy of nationality deprivation of dual nationals in France, we can find out the development of non-controversial and non-politicized dual national issues into social agenda by politicization through speech-act or announcement effect.