• Journal of Korean Society of Steel Construction
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• v.13 no.1
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• pp.1-8
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• 2001

The purpose of this study is to examine the utility of concretefilled steel tubular column to H-beam connections with tubular stiffener. As a preliminary step. a tensile experiment was undertaken to scrutinize characteristics of the structural behavior that take place between beam flanges and column with tubular stiffener. A total of 4 types of experimental settings were developed as tabular stiffeners are made up 9, 18, and 27 mm of thickness and 50 and 80 mm of height respetively Along with the overall load subsequently the degree of displacement and strain were recorded. Based on the yield line theory results of this of this study were evaluated and further critically reviewed the applicability of the strength formula. This study found that collapse mechanism was emerged on the beam flange as reinforcing tabular stiffeners Complementary studies of this sort, including numerical analyses should be undertaken in order to develope specific design critera.

• Journal of Educational Research in Mathematics
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• v.16 no.3
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• pp.179-198
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• 2006

In This Paper, I call Johnson & Lakoff (1980; 1999)'s Experientialism or Experiential Realism or, Embodied Realism, Nunez(1995; 1997)'s Ecological Naturalism as Experientialism and try to investigate the possibility of their Experientialism to be a philosophy of mathematical education. This possibility is approached in the respect with the problem of objectivism and relativism. I analyzed the epistemological background of embodied cognition first and then mathematical epistemology of experientialism. Experientialism shares its Philosophical position partly with Dewey and Merleau-Ponty. Experientialists deny the traditional hypothesis of philosophy as such separability of subject and object, and of body and rationality and also They have better position of epistemology than that of Hamlyn, and of Social Constructivism. Therefore, They guarantee wider range of mathematical universality than Hamlyn and Social constructivist. I conclude that the possibility of Experientialism to be a philosophy of mathematical education depends on the success of its supporting the practical study on mathematics education.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.132-136
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• 2007

최근 지구온난화로 인한 이상기후의 영향으로 강우일수는 줄고 있으나 강수량은 예년과 비슷한 수준을 보이고 있다. 이로 인해 갈수기의 용수부족 현상은 더욱 심해지고. 장마철의 홍수피해와 게릴라성 집중호우로 인한 피해가 커지는 등 해가 갈수록 홍수 예경보의 중요성은 더욱 높아지고 있다. 그럼에도 불구하고 현재 홍수 예경보 체계는 몇 가지 문제를 가지고 있다. 기존 예경보 체계의 경우 한 번의 예측을 수행하기 위해 수반되는 전처리과정과 주계산과정을 거치는 동안 각 과정에서 발생한 오차들이 반복, 누적되어 최종 결과물(예측된 유출량) 속에 모두 포함된다. 또한 기존 체계에서는 유출모형을 적용하기 위해서 토양형. 피복상태 등에 관련된 매개변수들이 필요한데. 이러한 매개변수의 결정에 어려움이 있고. 불확실성을 갖고 있다. 본 연구에서는 불확실성을 적극적으로 인정하고 수학적으로 해석하려는 fuzzy 이론을 신경망 이론에 도입하여 홍수 예경보 시스템의 운영과정에서 발생하는 불확실성의 문제를 해결하고자 하였다. 본 연구에서 사용한 ANFIS(Adaptive Neuro-Fuzzy Inference System)은 data driven model(자료에 기반을 둔 모형)의 하나로 다음과 같은 장점을 가진다. 우선 data driven model은 유역의 물리적, 지형적 특성을 고려하지 않고(매개변수설정에서 발생하는 문제 해결 가능), 입력자료와 출력자료만을 고려하여 구축되는 모형이므로, 유역의 물리적 자료나 지형 자료와 같은 방대한 양의 자료 수집이 필요 없고, 일단 모형이 구축되면 자료의 입력만으로도 신뢰성 높은 결과를 단시간 내에 효율적으로 획득할 수 있다. 그리고 유역 내의 상황이 변화하더라도, 이들의 영향을 고려하여 쉽게 모형을 갱신할 수 있다. 마지막으로 모형의 구축 과정이 물리적 모형에 비해 비교적 간편하다는 장점이 있다. 본 연구에서는 ANFIS를 통해 탄천유역의 강수량 자료와 대곡교의 수위자료를 입력자료로 사용하여 대곡교의 수위를 예측하였다. 입력 자료는 시간차 계열의 강우량과 수위 자료를 사용하였으며 모형을 통하여 t+1, t+2, t+3 시간 후의 수위를 예측하였다.

• Journal of Digital Convergence
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• v.14 no.11
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• pp.577-587
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• 2016

This study aims to understand the experiences of remarried elderly from the social, cultural point of view. The study subjects were randomly selected 3 remarried couples with age higher than 65 who could express their experience enough. This study adapted qualitative study with grounded theory method by Strauss and Corbin(1998), which deducted 126 significant sentences from the testimony of participants and classified those into 48 topics and categorized into 16. As for the study result, the main phenomenon was the "ambivalence of marriage" and the mediation conditions for controlling were "trust and acknowledgement of spouse and family", and "proper compensation", and the reaction/mutual reaction strategy to correspond to this situation was "to put effort to understand spouse". Such results will contribute to understanding the essence of marriage adjustment of remarried elderly, and are expected to be the fundamental material to tend to realistic problems that the widowed elderly face and to lead successfully remarriage.

• Journal of Korea Technology Innovation Society
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• v.15 no.2
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• pp.225-241
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• 2012

This paper examines the evolution of the systems of innovation approach and its main issues. At first, national systems of innovation have appeared on the purpose to substitute the neoclassical macroeconomic policies. But various criticisms have been raised because of the restriction within national boundary of analysis, the lack of dynamic analysis, the danger of institutional determination, the deficiency of theoretical accuracy in national systems of innovation. Technological systems, regional systems of innovation, sectoral systems of innovation have been developed to overcome criticisms about national systems of innovation. Nevertheless the unsettled questions in the systems of innovation approach remain. The academic and policy-making usefulness of the systems of innovation approach will be expanded by development of the complementary researches within approach.

• The Korean Journal of Financial Management
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• v.22 no.1
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• pp.147-179
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• 2005

It is frequently said that mortgage-backed securities (MBS) of different security designs are issued in an attempt to meet the varying needs and expectations of investors. If this is true indeed, MBS of complicated risk-return characteristics are likely to be priced higher than MBS of simple risk-return characteristics we. We test this implication by establishing a recombining binomial interest rate prepayment model with a burnout effect embedded. More specifically, we compare the relative values (utilities) of a pass-through and a PAC- Support collateralized mortgage obligation(CMO), and theoretically show why and how the CMO is more highly valued than is the pass-through. The model is established such that mortgage prepayment is a function of the current value of, and the past path of, the mort-gage market rate. Since we work on not the total value of the two MBS but the value of each tranche of either MBS, the test results could be robust to slightly different versions of similar tests, which may be done in the future.

• Journal of Digital Convergence
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• v.11 no.10
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• pp.133-139
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• 2013

The advent of multi-cultural society and multiracial nation is a new change of the times and a new phenomenon. In this social change, a need for a new theory and a new policy appropriate for Korean conditions is surfacing. In case of Japan, they have been changed into stable multi-cultural society by establishing various policies. An investigation on the changing process of policy in Japan has a great significance, we think. This study compared and analyzed the reason of promoting multi-cultural policies, changes of the related laws and institutions and the policies between Korea and Japan, investigated characteristics and differences between them, deduced implications and presented a new theory for multi-cultural policy appropriate for Korean conditions. In order to establish a new multi-cultural policy in Korea, firstly, acceptance of diversity and mutual recognition, secondly, establishment of policy direction through social consultation and thirdly, establishment of multi-cultural regulations followed by reestablishment of economical and political regulations should be required.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.346-346
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• 2012

우리나라의 최근 10년간(1999~2008년) 1일 100mm 이상 집중호우의 발생빈도는 총 385회로, 70~80년대 222회에 비해 무려 1.7배나 증가하였으며 이상기후로 인한 국지성 폭우로 각종 피해가 커지고 있는 추세이다. 2011년의 경우에도 7월 서울 및 수도권 지역에 발생한 100년 빈도 설계 강우량을 초과하는 집중호우로 인해 서울의 도심지역 곳곳이 침수로 인해 많은 재산피해와 인명피해를 유발하였다. 이러한 원인으로서 기후변화와 변동이 기정사실로 인정되고 있으며 가까운 미래에도 기후변화로 인한 물 관련 재해의 정도는 점차 심해질 것으로 예상되고 있다. 그러나 대부분의 기후변화로 인한 집중호우 관련 연구들은 주로 서울, 부산 등 대도시 및 중부 내륙지방과 남부 지방을 중심으로 이루 졌으며 실제로 과거에 이상기후로 인한 집중호우로 큰 피해를 입은 강릉을 중심으로 한 영동지방에 대한 연구는 미비한 실정이다. 예를 들어, 2002년 8월 31일 하루 동안 강릉에 870.5mm의 비가 내렸으며 이는 국내 기상 관측 사상 최고 기록이었다. 2006년 7월 14~24일 평창 지역에 쏟아진 집중호우 역시 대단했다. 이 기간 봉평의 누적 강우량은 694mm에 이르렀다. 실제 2000년대 들어 이상강우현상은 영서와 영동의 태백산맥의 관문인 대관령 양쪽 지역에서 자주 나타나고 있다. 이에 본 연구에서는 영동지방의 과거 강우량자료를 대상으로 극한치 이론을 이용한 분석을 통해 극한강우특성 변화를 분석하고 비정상성 빈도해석을 통해 기후변화 및 변동이 미치는 영향을 분석하였다.

• International Area Studies Review
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• v.15 no.3
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• pp.325-348
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• 2011

This paper analyses how China is likely to be able to sustain its current pace of growth. The results of analysis show that China's economic growth matches standard growth patterns identified by the models of economic development such as structural change, catching up model. Furthermore, China's economic growth, within these analytical frameworks, matches those of Korea at an earlier stage of her development. So Korea's growth patterns may well apply to the future of China such as the benefits of free society with economics and politics which generate technical progress and innovations. A country with a high innovative capacity is one whose institutions - educational, economic, political, legal, and so forth - allow it to dynamically and continually generate new products and services in a myriad of sectors. These are the way how China is likely to be able to sustain her economic development.

• Journal of Korea Entertainment Industry Association
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• v.14 no.4
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• pp.47-55
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• 2020

In this paper, acting of Meryl Streep, who was recognized as a method actor in Hollywood, was analyzed, and this paper tried to find out how Meryl Streep utilizes the American acting method to improve her acting skills. To do this, we first looked at the concepts and theories of the American acting method, and analyze the acting of Meryl Streep through three films: "Sophie's Choice", "The Devil Wears Prada", and "The Iron Lady". Analysis results show that Meryl Streep utilizes all of the American acting methods, such as "Emotional memory", "Imagination", "Given Circumstance", and "Repetition" without any particular distinction. Meryl Streep uses not a specific acting theory, but selects appropriate training for herself. According to the analysis of this paper, we can understand the acting method that Meryl Streep uses, and shows some way to develop the acting training. The result of this paper can be used to the acting training, and it will be an opportunity to follow in the footsteps of one of the greatest actress.