• Journal of the Korean Geosynthetics Society
• /
• v.6 no.3
• /
• pp.17-23
• /
• 2007

To construct an ideal geosynthetic reinforced soil retaining wall (GRS-RW), the facing of the wall should be flexible enough to accommodate a large deformation of the supporting ground and to develop the large tensile force in reinforcements during wall construction as long as the stability is ensured, but should be rigid enough to be stiff and stable as well as durable and aesthetically acceptable for a long life time when the wall is in service. Facing conditions during the construction and service of the wall are quite different. So it is difficult to be satisfied all these conditions with the current construction method which is mainly used in reinforced wall construction in Korea. Most of this contradiction could be solved by the staged construction procedure. According to the results of cases and references analyses, stage construction procedures make it possible to accommodate large deformation of the supporting ground and backfill without losing the stability of the wall, and to derive the tensile strength of reinforcement causing deformation of the facing. When the facing is a full-height rigid one, it also appeared almost impossible to occur a local shear failure of the active zone, and pull-out failure of reinforcements. Therefore, GRS-RWs having a full-height rigid facing have been constructed by the staged construction procedures that matched well with the theory of reinforced soil, which had outstanding stability and durability, and thus could be used for railways and bridge abutments in Korea in the future.

• Journal of Nutrition and Health
• /
• v.52 no.5
• /
• pp.488-500
• /
• 2019

Purpose: This study examined the effects of a mobile app-based program to reduce the dietary sugar intake according to the stages of the behavioral change in dietary sugar reduction in female college students. Methods: The program used in this study can monitor the dietary sugar intake after recording the dietary intake and provide education message for the reduction of dietary sugar intake. In an eight-week pre-post intervention study, 68 female college students were instructed to record all the food they consumed daily and received weekly education information. At pre-post intervention, the subjects were asked to answer the questionnaire about sugar-related nutrition knowledge, sugar-intake behavior, and sugar-intake frequency. For statistical analysis, ANOVA and a paired t-test were used for comparative analysis according Precontemplation (PC), Contemplation Preparation (C P), and A M (Action Maintenance) stage. Results: Significant differences were observed in the frequency of snacking, experience of nutrition education, and preference for sweetness according to the stages of behavior change in dietary sugar reduction. After finishing an intervention, the sugar-related nutrition knowledge score was increased significantly in the stages of Precontemplation (PC) and Contemplation Preparation (C P). The score of the sugar intake behavior increased significantly in all stages. The intake frequency of chocolate, muffins or cakes, and drinking yogurt decreased significantly in the PC stage and the intake frequency of biscuits, carbonated beverages, and fruit juice decreased significantly in the C P stage. Subjects in the PC and C P stages had an undesirable propensity in nutrition knowledge, sugar-intake behavior, and sugar-intake frequency compared to the A M stage, but this intervention improved significantly their nutrition knowledge, sugar-intake behavior, and sugar-intake frequency. Conclusion: This program can be an effective educational tool in the stages of PC and C P, and is expected to further increase the usability and sustainability of mobile application if supplemented appropriately to a health platform program.

• Journal of Gifted/Talented Education
• /
• v.24 no.6
• /
• pp.917-934
• /
• 2014

Through the concern-based adoption model (CBAM), this study aimed to determine the differences in gifted-education OJT-received teachers' concerns about gifted education by stage before and after the OJT. This study surveyed 162 elementary and secondary school teachers who participated in 2014 gifted-education OJT hosted by City B's Gifted Education Promotion Institute, and of them, 102 effective questionnaires were analyzed to determine the difference in their concerns about gifted education by variable (gender, school grade, and subject) before and after the OJT. This study found that the OJT was essential to foster gifted-education teachers and to expand their basic knowledge and skills for gifted education, and that the OJT boosted the teachers' confidence and met their needs.

• Journal of Advanced Navigation Technology
• /
• v.15 no.2
• /
• pp.287-297
• /
• 2011

As electronic mails are being widely used for facility and speedness of information communication, as the amount of spam mails which have malice and advertisement increase and cause lots of social and economic problem. A number of approaches have been proposed to alleviate the impact of spam. These approaches can be categorized into pre-acceptance and post-acceptance methods. Post-acceptance methods include bayesian filters, collaborative filtering and e-mail prioritization which are based on words or sentances. But, spammers are changing those characteristics and sending to avoid filtering system. In the case of Korean, the abnormal usages can be much more than other languages because syllable is composed of chosung, jungsung, and jongsung. Existing formal expressions and learning algorithms have the limits to meet with those changes promptly and efficiently. So, we present an methods for recognizing Korean abnormal language(Koral) to improve accuracy and efficiency of filtering system. The method is based on syllabic than word and Smith-waterman algorithm. Through the experiment on filter keyword and e-mail extracted from mail server, we confirmed that Koral is recognized exactly according to similarity level. The required time and space costs are within the permitted limit.

• Korean Journal of Social Welfare
• /
• v.65 no.4
• /
• pp.165-193
• /
• 2013

This study purposes to explore the growing process through spousal bereavement in later life, and to develop the theory. A qualitative research was conducted, and the participants were 17 seniors. The analysis according to Strauss and Corbin's grounded theory(1998), resulted in 143 concepts, 43 subcategories, and 19 categories. Range analysis according to paradigm showed that the causal conditions were 'marital relationships', 'independent/dependent tendencies', and 'emotional readiness for the death of a spouse', and the phenomena were 'depression', 'hopelessness', 'daily stress', 'psychological intimidation', 'regret', and 'sense of being freed'. The contextual conditions that affect these phenomena were 'desire for intimate personal relationships' and 'desire to maintain independence'; the action/interaction strategies to manage the phenomena were 'facing reality' and 'efforts for construction of the new life'; and the mediating conditions that promote or suppress these action/interaction strategies were 'social support' and 'spirituality'. The results were 'reconstruction of the meaning in life', 'increase in self-esteem', 'reinforcement of social network' and 'embrace and acceptance'. Furthermore, when personal growth after bereavement of a spouse was analyzed focusing on changes over time, the growth process consisted of three steps: 'sadness and despair', 'embracing and moving forward', and 'personal growth'. The pattern analyses were performed to typify recurring relations by category, and 5 types were derived. The results of our study show that personal growth after spousal loss is an integrative process in life after crisis, and can be conceptualized as the process of overcoming the despair that immediately follows the death of a spouse, seeking a new life by actively taking control, and discovering a strengthened self.

• Proceedings of the Korean Society for the Gifted Conference
• /
• 2004.11a
• /
• pp.125-148
• /
• 2004

본 연구는 우수한 학업 성적을 보이는 재미 한인 영재 청소년들이 민족적 정체감을 어떻게 형성해 나가는지를 알아보는데 그 목적이 있다. 이를 위해 미국 뉴욕의 학업영재아를 위한 고등학교에 재학중인 25명의 한인 영재아들을 대상으로 Phinney의 민족적 정체감 평가지가 사용되었다. 민족적 정체감의 평가를 위해 3가지의 민족 정체감 구성요인들이 사용되었는데, 이들은 민족적 자기 정의, 민족집단에 대한 평가와 민족집단에 대한 참여이다. 개방형 문제에 응답을 한 학생들은 두 명의 독립적인 관찰자에 의해, 자신이 정의한 민족집단에 대한 탐구와 헌신의 정도에 따라, 3단계의 민족 정체감 발달 단계로 나누어졌다. 이 3단계 중 첫번째 단계는 자신이 속한 민족집단에 대한 무관심과 낮은 참여도를 보이는 민족 정체감 무관심의 시기이고, 두 번째 단계는 자신의 민족집단에 대한 관심을 가지고 그 집단의 역사와 철학, 문화, 그리고 주류사회 속에서 해당 민족집단의 사회적 위치와 편견 등에 대해 관심과 참여를 보여주는 민족 정체감 탐구의 시기이며, 마지막 단계는 민족 정체감 완성 시기로, 자신을 그 집단의 구성원으로 완전히 수용하면서, 민족적 정체감에 안정된 모습을 보이는 단계이다. 각 민족 정체감 구성요소들과 민족 정체감 발달 단계내의 집단차를 논의하기 위해 ANOVA가 사용되었다. 연구에 참여한 대부분의 영채아들은 자신을 재미아시아인이 아니라, 한국인 혹은 재미동포로 정의하였고, 이러한 민족적 자기 정의는 학생들의 민족집단에 대한 평가도와 참여도에 중요한 역할을 한다는 것을 알 수 있었다. 또한 민족집단에 대한 긍정적인 평가는 민족집단에 대한 활발한 참여와 밀접한 관련성을 가지고 있었다. 연구에서 나타난 결과들을 바탕으로 재미 한인 영재 청소년들이 높은 자아 존중감을 지닐 수 있도록, 현재 교육현장과 실생활에서 활용할 수 있는 여러 방안들과 함께, 앞으로 필요한 보다 많은 연구를 위한 제언이 제시되었다. 사고력 계발에 보다 충실할 수 있도록 내용의 폭을 넓히고 접근방법을 달리하는 심화 중심으로 교육과정을 구성하고 운영한다고 하였다. 그러나 현재 개발된 교육과정 편성과 운영은 창의성 교육의 구현보다는 압축형 속진 교육과정의 특성이 강하여, 이와 같은 운영지침을 실현하기 어려운 것이 현실이므로 교육과정 편제의 개선이나 운영지침에 적합한 교육내용의 개발이 시급히 이루어져야 할 것이다. 둘째, R&E(Research ＆ Education)는‘연구를 통한 교육’,‘교육을 통한 연구’를 의미하며 과학영재교육과정의 가장 큰 특징이라 할 수 있는 자율연구와 위탁교육을 위한 프로그램이다.여주는 것으로 나타났다.보였다. 5. L값은 살균처리의 경우 저장 30일 이후 약간 어두워지는 경향을 보였고, 121$^{\circ}C$ 살균처리에서 높은 값을 보였다. 대체로 저장온도가 높고 저장기간이 길어질수록 약간 밝아지는 경향을 보였다. 적색도는 인삼 첨가구의 경우 상온 및 냉장저장에서 10$0^{\circ}C$ 살균이 121$^{\circ}C$ 처리구 보다 약간 높은 값을 보였다. 저장기간에 따른 적색도의 변화는 인삼과 송이 첨가구에서 비교적 안정적이었다. 황색도는 상온 및 냉장저장에서 저장기간에 따라 약간 감소하는 경향을 보인 후 상온저장 50일 째, 냉장 60일 째 가장 높게 나타났다. 121$^{\circ}C$ 살균처리구가 10$0^{\circ}C$ 처리구보다 약간 높은 경향을 보였다.^{\circ}C$$,에서는 20시간 가열시 0.706$\mu\textrm{g}$/kg으로 가장 높게 생성된 후 서서히 감소하였다. 그러나 산값과 공액이중산값은 계속 증가하는 양상을 나타냈다. 즉 B(a)P생성과 산패도 변화사이에는 일정한 관계를 나타내지는 않았다.ve(+)의 상관관계가 있었다.l

• KSBB Journal
• /
• v.14 no.6
• /
• pp.677-681
• /
• 1999

Purificationi of egg yolk immunoglobulin(IgY) was performed to understand the property of egg immunoglobulin. IgY differs from mammalian IgY in the molecular size(larger), isoelectric point(more acidic), and binding ability with mammalian complement and protein A(nonbinding ability). IgY is also known as ${\gamma}$-livetin and exists in egg yolk together with other two water-solubel proteins, ${\alpha}$-livetin(chicken serum albumin) and ${\beta}$-livetin(${\alpha}_2$-glycoprotein) and various lipoproteins(Low density lipoprotein, LDL and High density lipoprotein, HDL) which are the major components of egg yolk. The first step of isolation of IgY is to separate the water-solube proteins from lipoproteins. We report a simple method for separation of water soluble proteins using k-carrageenan and sedimentation. k-carrageenan was found to be effective for removal of yolk lipoprotein as a precipitate. IgY remained supernatant, and was isolated by chromatography on columns of DEAE-Sephacel and G 75 gel filtration chromatography.

• Journal of Korean Society of Transportation
• /
• v.26 no.4
• /
• pp.217-227
• /
• 2008

The purpose of this research is the estimation of a transfer ratio according to transfer time reflecting passenger attributes such as sex, age, income, job, the car ownership, and other variables with the assumption that a transfer ratio would be different depending on each passenger attribute. This research tested transfer time through a question-survey, estimated transfer time according to the passenger attributes using a data sample, and presented some applicable models about marginal transfer time for the case of the determination of transfer ratios according to transfer time. In this research the sample which had been surveyed for passengers walking to access a transfer station was used to test and estimate and the question was present walking time to the transfer time and the marginal transfer walking time.

• Journal of the Daesoon Academy of Sciences
• /
• v.19
• /
• pp.47-80
• /
• 2005

고구려는 지리적인 조건으로 말미암아 삼국 가운데 가장 먼저 불교를 수용할 수 있었으며 5세기부터 7세기사이에 고구려의 불교문화가 백제, 신라와 고대 일본에 전해져 동아시아 전체에 보급되었다. 불교 전래 당시부터 고구려 왕실이 열성적으로 불교를 신봉한 일은 충분히 주목할 가치가 있는데, 왜냐하면 중앙 집권적 국가로 전환을 시도하던 때 마침 불교의 사회적 정치적 가치를 인식하게 되었기 때문이다. 불교와 왕권이 상호 관계를 강화하는 쪽으로 힘을 결집시켰는데, 왕실은 불교에 대해서 후한 지원을 아끼지 않았으며, 불교는 전륜성왕, 혹은 우주를 지배하는 자, 미륵 그리고 보살 등 모티브의 상징적 중요성을 통치자에게까지 확대시킴으로써 통치자의 지위를 신성시하는 이념적 기틀을 제공하였던 것이다. 이런 맥락에서 볼 때 불교를 받아들인 후에 세워진 비문들이 왕명 앞에 성(聖) 자를 붙여 왕의 지위를 신성화하는 의미를 나타내고 있다는 점은 우연의 일치가 아니다. 4세기말 국가 차원에서 불교를 수용한 고구려와 6세기초 법흥왕 당시의 신라는 시대적인 차이가 있으나, 국가 발전의 같은 단계에 서있었기 때문에 이 두 나라의 초기 불교 정책에 많은 유사점을 찾을 수 있다 고구려에서 거칠부와 더불어 신라로 넘어 온 혜량법사가 진흥왕 12년에 처음 개최된 백고좌강회는 《인왕경》에 입각한 것이며, 이 법회가 신라인의 사상적 통합과 진흥왕의 위업을 향상하는 데 기여하였다고 여겨진다. 그리고 진흥왕이 말년에 승복을 입고 법운이라는 법호를 택했는데 여기서 주목할만한 것은 법운(法雲)이 《십지경》에서 말하는 보살의 수행 최종 단계 그것에서 따온 것이며, 《십지경》은 이미 고구려에 익히 알려졌을 것이었다.신라 화랑이 미륵의 현현으로 여겨졌다 함은 일찍부터 지적되어 온 것입니다만 이 논문에서, 그것은 북중국에서 5·6세기경 유행한 그리고 소미륵으로 간주된 월광동자 (月光童子)신앙이 고구려를 통해 남하여 화랑의 사상적인 바탕이 됐다는 것으로 이해하였다. 그 증거로 《수라비구월광동자경》에 나타난 용어와 고대 한반도의 지명을 들 수 있는데 이 경은 고구려의 선인(仙人) 사상 및 신라의 화랑을 간접적으로 직결시킨다는 점도 염두 할 필요가 있다.

• Korean Journal of Logic
• /
• v.20 no.2
• /
• pp.197-239
• /
• 2017

The ordinary term 'believe' is polysemous and thus its meaning varies depending on contexts. Little attention, however, has been paid to its context sensitivity in philosophical discussions, and thereby unnecessary problems tend to be brought about in philosophy. This article explores the different meanings of the term 'believe' to serve as a steppingstone to the solving or dissolving of those problems. To begin, it discusses two different mental attitudes 'believe' stands for, i.e., belief as an involuntary mental disposition and pragmatic acceptance as a mental action, and then suggests and explicates another mental action 'believe' referes to, which I call 'epistemic acceptance'. It will be revealed that epistemic acceptance is a secondary mental action which is performed in a context where epistemic reason and non-epistemic reason compete each other. Then, attention is given to several questions concerning epistemic acceptance and answers to them are provided. The issue of whether epistemic acceptance is analyzable and of the relation between epistemic acceptance and judgment will be addressed in the course of answering them. Finally, a brief prospect is put forward that distinction of different mental attitudes 'believe' stands for will bring a new perspective to solve some philosophical problems, especially, with regard to the issue of the nature of epistemic norm.