• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2006년도 추계 학술발표회 논문집
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• pp.537-540
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• 2006

Over the past few decades, a considerable number of studies on the durability of concrete have been carried out extensively. A lot of improvements have been achieved especially in modeling of ionic flows. However, the majority of these researches have not dealt with the chloride binding isotherm based on the mechanism, although chloride binding capacity can significantly impact on the total service life of concrete under marine environment. The purpose of this study is to develop the model of chloride binding isotherm based on the individual mechanism. It is well known that chlorides ions in concrete can be present; free chlorides dissolved in the pore solution, chemical bound chlorides reacted with the hydration compounds of cement, and physical bound attracted to the surface of C-S-H grains. First, sub-model for water soluble chloride content is suggested as a function of pore solution and degree of saturation. Second, chemical model is suggested separately to estimate the response of binding capacity due to C-S-H and Friedel's salt. Finally, physical bound chloride content is estimated to consider a surface area of C-S-H nano-grains and the distance limited by the Van der Waals force. The new model of chloride binding isotherm suggested in this study is based on their intrinsic binding mechanisms and hydration reaction of concrete. Accordingly, it is possible to characterize chloride binding isotherm at the arbitrary stage of hydration time and arbitrary location from the surface of concrete. Comparative study with experimental data of published literature is accomplished to validity this model.

• 교육시설 논문지
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• 제21권1호
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• pp.3-11
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• 2014

The policies is always changes according to the changing times, and changes take place in educational facilities welfare policy. Early childhood facilities, is no exception. Recent, increase in the number of kindergarten and kindergarten children according to policy changes of government's active welfare. This change in pattern, policy changes and increased support to know the impact on the community, and this is not just a simply agenda that they need to be recognized social change. In addition, it can be seen changes in relevant laws and educational process according to childhood policy change flow and depending on social change. In this study, comparative study infants and installation of the facility based on criteria, ensuring standards of early childhood facility site, facilities of evolution of infants care act, act infants, infants of activities safety management. And Standards and facilities that are required to change the direction of the revision is for the purpose of research through changes in kindergarten curriculum to respond the policies flow. Research methods are literature on the various laws and research analysts, leading comparison of different child care and child care policy changes in laws and regulations to review materials are analyzed.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제21권4호
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• pp.17-25
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• 2015

Purpose: At the moment, There is a facility standard for intensive care units on the Korea medical services Act. However, the contents of regulation are so limited and difficult to apply. Therefore, it is necessary to draw up the guideline to complement the regulation for efficient operation of intensive care units. This study aims to suggest basic data for guideline of intensive care units. Methods: 2 Methods have been used in this paper. 1) Comparative analysis between the national regulation of Korea with the design standard of the United States America, the United Kingdom and Australia. 2) A literature survey about operation method for intensive care unit, focused on materials published in intensive care medicine society of each country. Results: In comparison with guideline of abroad cases, additional supplement are required, with regard to item such as operation environment, size, nursing manpower ratio, bed space area, space program of intensive care units for healing environment. Implications: This study is a basic research for guideline of intensive care unit, and need to be followed by further study using various perspectives and methods.

• 한국정보기술응용학회:학술대회논문집
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• 한국정보기술응용학회 2006년도 춘계학술대회
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• pp.437-462
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• 2006

The objective of this study is to investigate what factors influence a major role in building trust on Internet shopping mall and to examine whether these factors on trust have differences between Korean and Chinese users. Based on relevant literature review, this study posits six factors of transaction security, perceived reputation, Perceived size, interactivity, propensity of trust, and familiarity as key determinants of trust in internet shopping mall. Analysis of 470 responses(Korean: 320 users, Chinese: 150 users) of survey questionnaire indicates the following; First, in terms of the relationship between influencing factors and the trust, five factors of transaction security, perceived reputation, perceived size, interactivity, and propensity to trust have a significant positive effects on the trust. Second, the differences between Korean and Chinese users are transaction security, perceived size, and familiarity. In conclusions, we suggested the factors to create user trust in internet shopping mall. Also we suggested differences in the determinant factors between Korean and Chinese users, and discussed some policies to build the trust in each user types.

• 한국문헌정보학회지
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• 제37권2호
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• pp.135-152
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• 2003

인터넷의 급속한 확산으로 디지털콘텐츠가 기하급수적으로 증가하고, 그 종류도 매우 다양해졌다. 분산 네트워크 환경하인 인터넷을 통해 디지털콘텐츠의 식별 및 검색을 용이하게 하기 위해서는 메타데이터의 조직과 관리가 필요하다. 본 연구는 여러 분야에서 다양하게 접근되고 있는 메타데이터 포맷의 데이터 요소를 비교 분석함으로써 상이한 메타데이터 포맷의 상호운용성 확보를 위한 기초 자료를 제공하고자 하였다. 포괄적으로 모든 영역에서 사용되고 있는 디지털콘텐츠의 메타데이터 포맷으로 Dublin Core, Semantic Header, MARC, IAFA Templates TEI Header를 선정하여 문헌고찰을 통하여 비교분석을 수행하였다.

• 한국에너지공학회:학술대회논문집
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• 한국에너지공학회 1999년도 추계 학술발표회 논문집
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• pp.119-124
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• 1999

A selection methodology of liquid levelmeters, especially, level sensors in non-nuclear category, to be installed in nuclear energy facilities is developed using linguistic fuzzy approaches such as fully-linguistic and semi-linguistic methods. Depending on defuzzification techniques, the linguistic fuzzy methodology leads to either linguistic (exactly, fully-linguistic) or cardinal (i.e., semi-linguistic) evaluation. For the linguistic method, for each alternative, fuzzy preference index is converted to linguistic utility value by means of a similarity measure determining the degree of similarity between fuzzy index and linguistic ratings. For the cardinal method, the index is translated to cardinal overall utility value. According to these values, alternatives of interest are linguistically or numerically evaluated and a suitable alternative can be selected. Under given selection criteria, the suitable selections out of some liquid levelmeters for nuclear facilities are dealt with using the linguistic fuzzy methodology proposed. Then, linguistic fuzzy evaluation results are compared with qualitative result available in the literature. It is found that as to a suitable option the linguistic fuzzy selection is in agreement with the qualitative selection. Additionally, the comparative study shows that the fully-linguistic method using adequate scale system facilitates linguistic interpretation regarding evaluation results.

• 비교문화연구
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• 제36권
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• pp.149-173
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• 2014

This paper examines language policies of Ghana and Tanzania (former British Colonies) since independence. The view that language use in education is a problem for African countries is evident in the ever changing language in education policies in many African countries. Because of the inevitable multilingual situation in many African countries, there are unavoidable challenges in their quest to adopt a language policy that works for the entire country since it is not practical to adopt all the languages spoken in the country as Media of Instruction. Ghana is not immune to this challenge and has fallen victim to this tendency to change the language in education policy from time to time in an attempt to adopt a satisfactory policy which would yield the intended results. Tanzania, however, is one of the few African countries that have found a sustainable language in education policy since independence. Nonetheless, it has its fair share of challenges as a consequence of the perceived competition between Kiswahili and English as official languages. The paper discusses the challenges that both Ghana and Tanzania face against the background of colonization. The paper also offers a discussion on possible future perspectives for the two countries.

• 비교문화연구
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• 제34권
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• pp.259-284
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• 2014

$Ren{\acute{e}}$ Char and Yi Yuk-Sa have similarities to be accepted as representative poet of resistance in France and South Korea's history of literature. These similarities lead us to make a comparative study on two poets not having any positive influencing relationship. Their experiences as a independence fighter have a great effect on their whole works. This study applies concept of "Po-ethica" to compare features and values about their works. This concept anticipates ethical and existential throwbacks not an aesthetic throwback. Their poems are remarkable that they not only present a ethical perspectives surpassing the "lettrism" but also show the lyricism in poems of resistance surpassing patriotic and ideological appeal. This lyricism results from the pursuits of a true life not a confidence of the goodness. The similarities and differences in their works can be a clue for rediscovering the meaning and values of poems of resistance. Rilke said, "The Poem is the experience". Char's poems are more experiential than any other poet's poems. His poems of resistance show a personal life than deconstruction of discourse such as nationality and father land. On the other hand, Yuk-Sa's poems show a prospect of nature and the macrocosm. This naturalization of a resistance surpass a pastoral attitude of forgetting their phases of the times and reality. Therefore, their "Po-ethica" of resistance is valid today.

• 비교문화연구
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• 제27권
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• pp.123-143
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• 2012

China's Yueyanglou(岳陽樓) cultural landscape and cultural landscape of Korea, respectively Yueyanglou(岳陽樓) investigated and the following results were extracted. First, multi-cultural personalities to ever Yueyanglou(岳陽樓) China's outstanding natural beauty around the emotion of his drawing on the literature and a new cultural landscape was formed. Their main feeling of the beauty of nature through his ash under adverse conditions up again in politics, which expresses the desire to advance. To this end, his outlook on life and also an attitude overhaul yeotboinda. This information formed the cultural landscape of Korea Yueyanglou(岳陽樓) not deviate from that has been investigated. Second, Korea is entirely China's 'sun' Lou Yueyanglou(岳陽樓) was a significant effect of cultural landscape. The beautiful landscapes of the Joseon Dynasty literati in the Joseon reported only in words and pictures they admired China's leading natural and cultural landscape and paste the name of the famous' sun Lou watch it was transformed into a cultural landscape. For this reason, the current remaining two 'sun' Lou, but probably the Joseon Dynasty, called the 'sun tower base and is estimated to be more common than now. In addition, in Hadong Yueyanglou(岳陽樓) near the sun 'Lou, China has also attached near the nomination could be an important clue.

• Structural Engineering and Mechanics
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• 제19권3호
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• pp.321-336
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• 2005

The structural feasibility of a variety of non-conventional sludge digesters, in the form of thin shells of revolution constructed in concrete, has formed the subject of investigation of a recent programme of research at the University of Cape Town. Such forms are usually known in the literature as "egg-shaped", and the advantages of these over conventional digesters of the wide-cylindrical type are now well-recognised: superior mixing efficiency, less accumulation of deposits at the bottom, easier removal of bottom deposits and surface crust, reduced heat losses, and so forth. With the aim of exploring the structural feasibility of various non-conventional forms for concrete sludge digesters, and making available usable analytical data and practical guidelines for the design of such thin shell structures, a number of theoretical studies have recently been undertaken, and these have covered conical assemblies, spherical assemblies and parabolic ogival configurations. The purpose of the present paper is to bring together the different analytical approaches employed in each of these studies, summarise the main findings in each case, draw comparisons among the various studied configurations with regard to structural efficiency and functional suitability, and make appropriate conclusions and recommendations.