• Journal of Korean Society of Steel Construction
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• v.12 no.6
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• pp.639-648
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• 2000

A model analysis is used to predict the impact response of a simply supported elastic circular cylindrical shell composed of two bonded isotropic layers. The governing equations for a two-layered cylindrical shell are derived on the basis of an improved theory for the single-layer shell which includes the effects of transverse shear deformation and rotary inertia. Calculations are made for the specific case of the steel-concrete cylindrical shell subjected to a suddenly applied load. The solutions show that the method yields very good results. Therefore the proposed method is useful not only for a better investigating of the response characteristics of the shell but also available for a check on other numerical methods such a FEM.

• Transactions of the Korean Society of Mechanical Engineers
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• v.14 no.6
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• pp.1487-1494
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• 1990

In this paper the dynamic characteristics of self acting air lubricated slider bearing of hard disk/head system are investigated. The dynamic equations of magnetic head mechanism considering both parallel and pitch motion and the time dependent modified Reynolds equation are analyzed and the dynamic pressure distribution of air film is numerically calculated in frequency domain by small perturbation method and finite difference scheme with variable grid. The dynamic response of the slider spacing is obtained accordingly as the moving recording surface vibrates in parallel mode.

• Annual Conference on Human and Language Technology
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• 2001.10d
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• pp.89-96
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• 2001

1999년 제1회 형태소 분석기 및 품사태거 평가 워크숍 이후 표준안에 대한 새로운 대안이나 문제제기등을 제시한 논문은 전무하다. 본 연구에서는 평가대회 참가 이후 표준안을 수정한 새로운 유형의 형태소 분석 프로그램을 제작하여 그 실용성과 앞으로의 발전 가능성과 문제점을 밝혀, 계층구조형의 형태소분석 시스템을 채택하고 있는 일본의 JUMAN을 참조 새로운 유형의 형태소 분석형식을 제시한다. 본 연구는 일본방송협회 방송기술연구소(이하 NHK기술 연구소)의 의뢰에 인한 것이며 어절단위의 표준안과 다른 형태소 단위를 기본요소로 삼고 있으며 활용형을 갖고 있는 용언에 대해서는 활용형의 전개를 하고 있다. 어절단위로 탈피한 이유는 형태소 분석의 기본요소로써 어절단위 보다는 형태소 단위를 기준으로 삼는 것이 생산성이 높다고 생각된다. 어절정보와 문장정보는 XML(extensible makrup language)등의 별도의 정보를 주는 방법을 채택했다. 음절말음이 자음인지 모음인지의 음운 정보에 따라 활용형을 차별했으며 표준안과 달리 명사의 종류와 개념을 세분화했다. 아울러 조사와 어미등의 검색어와 함께 음절을 형성하고 있는 비검색어 대상은 배제하는 프로그램과 표준안의 어절방식으로 출력하는 3가지 프로그램을 작성했다. 본 연구에서는 계층구조의 형태소분석 프로그램의 가능성과 한국어의 특성을 고려한 출력항목등을 고찰하는 것을 목적으로 한다.

• School Mathematics
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• v.12 no.3
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• pp.301-322
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• 2010

In this study, researchers developed the criteria evaluating mathematically gifted students' creative products, which contain such evaluation headings as cognitive abilities(; creativity, analytic thinking, expert skill and knowledge), performing ability of the Mathematically Gifted-Creative Problem Solving process. And then a case study is carried out to apply the criteria to an actual condition of mathematically gifted education. This case study shows that how teachers can apply those of model and criteria in actual condition of the mathematically gifted education. Through the criteria above mentioned, the characteristics of creative productivity can be grasped clearly and evaluated in detail.

• Journal of Korean Society of Forest Science
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• v.84 no.3
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• pp.377-393
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• 1995

Forest ecosystems are major reservoirs because forest lands are up to 65% of the national land of Korea. Biodiversity is the basis of forest conservation as well as development of forest ecosystem productivity. When we are going to establish biodiversity conservation strategies, however, we need to have a good eye in order that we are not limited only to species but we can also understand whole ecosystems. Therefore, to develop the biodiversity conservation strategies, global environmental problems, the development process of biodiversity on the earth, the fundamental logic of biodiversity conservation, the conservation system and steps of the conservation procedures are discussed. In conclusion, research subjects needed urgently are recommended.

• Nuclear Engineering and Technology
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• v.25 no.1
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• pp.20-27
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• 1993

This paper concerns with developing a simplified in-core fuel management scoping tool for PWR. For this purpose the point reactivity model is put into a fuel cycling decision code, FCYPRM. Modified Borresen's coarse-mesh diffusion theory and nodal expansion method are utilized to form a spatial neutron analysis code, CMSNAP. Numerical experiments are per- formed to determine a set of empirical shuffling rules for working out an automated fuel loading pattern search code, ALPS. The numerical examples are presented for verifying effectiveness and applicability of individual codes. By structuring and applying three codes for reload core design problem of a PWR, it is demonstrated that these codes provide an effective in-core fuel management scoping tool for PWR.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.23 no.3
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• pp.111-116
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• 1987

The accurate prediction of the ship wave resistance is very important to design ships which operate satisfactorily in a wave environment. Thus, work should continue on development and validation of methods to compute ship wave patterns and wave resistance. Research efforts to improve the prediction of ship waves and wavemaking resistance are categorized in two major areas. First is the development of higher-order theories to take account of the nonlinear effect of the free surface condition and improved analytical treatment of the body boundary condition. Second is the development of direct numerical methods aimed at solving body and free-surface boundary conditions as accurately as possible. A new formulation of the slender body theory for a ship with constant speed is developed by Maruo. It is quite different from the existing slender ship theory by Vossers, Maruo and Tuck. It may be regarded as a substitute for the Neumann-Kelvin approximation. In present work, the method of asymptotic expansion of the Kelvin source is applied to obtain a new wave resistance formulation in fluid of finite depth. It takes a simple form than existing theory.

• The Journal of Dong Guk Oriental Medicine
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• v.6 no.1
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• pp.35-66
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• 1997

Today's meridian system is revealing the theory made after the standard of 'Ling-shu Jing-mai(靈樞 經脈)'. But after excavating 'Ma-wang-dui'(馬王堆)'s' medical books from his 'Han(漢)' Dynasty tomb, there had to be some adjustments made concerning the former meridian systme. 'Shi-yi-mai-jiu-jing(足臂十一脈灸經)' and 'Yin-yand-shi-yi-mai-jiu-jing(陰陽十一脈灸經)' are not related and each of them was developed independently and influenced by the Meridian Pluse Theory of 'Ling-shu(靈樞)'. Accordingly, the leaning toward heart pluse system and the circulating pulse system were formed and 'Ling-shu(靈樞)' was influenced by this. Therefore, investigating these processes thoroughly is the main subject stated in this thesis. The occupying percentage of the 'leaning toward heart pluse system(向心脈系)' and the 'circulating pluse system(循環脈系)' in each section is one-sided to the loaning toward heart pluse system. However, today's 'Jing-mai system(經脈體系)' is developed focusing on 'Jing-mai(經脈)'. The reason for this should be investigated by using the medical history of acupuncture & moxibustion. Analongizing roughly, from the time after five transfer points of 'Ben-shu(本輸)' was absorbed into 'Jing-mai(經脈)' as only the main meridians of the traditional 'Meridian Point(經穴)' and couldn't seem to realize the true self of the original 'Ben-shu(本輸)'. Therefore, various misunderstandings might have occured in clinic, basal narusis, and antiquity of the influenced preconception of 'Jing-mai(經脈)' being first.

• International Commerce and Information Review
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• v.13 no.2
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• pp.3-26
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• 2011

The objective of this study is to improve export performance using e-Trade marketing systems. The use of e-Trade has been increasing but there is some controversy about the performance of e-Trade marketing for Small-to-Medium enterprises (SME). The research construct for determining the export performance is suggested and five factors are introduced in this paper such as: B2B relationship and cooperation, product complexity, online fitness, level of internationalization, and use of e-Trade marketing. Sample data were collected from the companies who are familiar with the e-Trade systems. The result shows that the use of e-Trade marketing mostly contributes to the increase of export performance. The regression and cluster analysis shows that both variables of e-Trade marketing and on-line fitness are significant to high export performance group. The implication for SMEs is that the use of e-Trade marketing methods could contribute to the increase of export performance and more analytical works need to be made for future study.

• Journal of the Daesoon Academy of Sciences
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• v.35
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• pp.1-37
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• 2020

In this paper, we investigated the principle of appropriation by which mythology and literature were accepted in the unique religious context of The Canonical Scripture (Jeongyeong 典經). First, we knew that almost all of the gods that appeared in the discourse of Kang Jeungsan (姜甑山) were related to Eastern Yi (東夷) mythology and deeply rooted in folklore. This is because the cultural tendency and historic consciousness of Kang Jeungsan was influenced by Danhakpa (the Danhak School 丹學派). Secondly, when we investigated the acceptance of literature into The Canonical Scripture, we discovered that Tang Poetry (唐詩), Romance of the Three Kingdoms (Sanguoyanyi 三國演義), and Journey to the West (Xiyouji 西遊記) were widely accepted in Kang Jeungsan's discourse. These works were used in diverse ways such as predictions, healing, and meditation. We knew that popular classical work like these were religiously appropriated in the context of The Canonical Scripture. Lastly, we investigated the mechanisms by which mythical and literary imagination was transformed into the Jeungsanist religious movements. Those mechanisms included the magical power of letter and images, sense-cognition of poetry, and the representational ability of mimesis. In conclusion, mythical and literary imagination helped Jeungsanist religious movements gain popularity and spread Kang Jeungsan's soteriology. This is especially true of how it transformed into unique religious techniques which functioned as key elements of the Reordering Works (公事).