• Title/Summary/Keyword: Frame work

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Development of Three Dimensional Analysis Method of High-Rise Buildings Considering the Construction Sequence and the Inelastic Behavior (시공 단계 및 비탄성거동을 고려한 초고층 건축물의 3차원 해석 기법 개발)

  • Yang, Joo-Kyoung;Seol, Hyun-Cheol;Kim, Jin-Keun
    • Journal of the Korea Concrete Institute
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    • v.20 no.2
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    • pp.249-256
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    • 2008
  • With consideration of the ongoing construction of high-rise buildings, it is becoming increasingly important to be able to accurately predict the behavior of them on the stage of design, construction and service. Even though many researchers have developed the analysis method to predict the behavior of high-rise buildings, their studies were based on the two dimensional frame structures composed of line elements such as beams and columns. Recently the high-rise buildings with flat-plate system is widely used because of its advantages. In this study a three dimensional analysis method is developed to analyze the behavior of the high-rise buildings with flat-plate system since it is difficult to model the structural systems reasonably with the existing two dimensional analysis method. The analysis method considered the construction sequence including the temporary work such as installation of form, removal of form, installation of shore, and removal of shore. Line elements were used to describe columns, beams, and shores and plate elements were used to model slabs. The creep and drying shrinkage of concrete were also considered to account for the inelastic behavior of concrete.

Pungsu Aesthetics of Korean Traditional Garden - Focused on Kosan Yoon Sun-Do's Gardens in Mountain- (한국전통정원에 구현된 풍수미학 연구 - 고산 윤선도의 원림을 중심으로 -)

  • Sung, Jong-Sang
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.30 no.4
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    • pp.70-80
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    • 2012
  • There isn't much of discussion about survey of traditional Korean garden with a perspective of Pungsu. Strictly speaking, it is difficult to list the names of gardens in which Pungsu theory is applied. But it is necessary to study in depth the Korean garden in mountain in relation with Pungsu. The reason is as follow; First, Pung-su and gardening both reflect man's responsive attitude and approach toward nature. Second, selecting a site for a garden requires aesthetic eyes to consider the harmony with the surrounding landscape and its compositions, where the perspective of Pungsu can play as an important component at work. Third, Pungsus complementary function justifies the correlation between Pungsu and Korean gardens. Gardens can be viewed as a solution to complement negative elements of Pungsu on site. This article tries to study the relationship between Pungsu and Korean garden in mountain in terms of Pungsu aesthetics. In Kosan Yoon Sun-Do's Buyong-dong garden, excavated perspectives of Pungsu aesthetics are fell into two categories; the spatial frame based on Pungsu topography and the dimension of enjoyment through visual angles between essential points. The former can be said as Pungsu topography as a mental image which was constructed by selected points and given Pungsu meanings; the latter is visual angles between those points by which make it possible to see and enjoy in comfortable sights. In such way making and enjoying Buyong-dong garden with full of Pungsu oriented meanings and aesthetics, Kosan Yoon Sun-Do enjoyed and sublimated his experience in nature into art.

Vibration Control Effect of the Framed Building Structures according to the Stiffness Ratio of Exo-type Damping System and Damper Device Yield Ratio (Exo-type 감쇠시스템의 강성비와 감쇠장치의 항복비에 따른 라멘조 건물의 제진효과)

  • Hur, Moo-Won;Lee, Sang-Hyun;Chun, Young-Soo
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.19 no.5
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    • pp.38-44
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    • 2015
  • In this paper, the vibration control effect of the Exo-type damping system was investigated by applying the Kagome dampers to 15-story and 20-story frame structure apartment. A new Exo-type damping system composed of the dampers and supporting column was proposed in the previous work and numerical analysis were performed to investigate the effects of optimum stiffness ratio between controlled structure and supporting column, the size of damper and yield ratio of the damper. The numerical analysis results of a structure with Exo-type damping system up to the third story showed that the stiffness ratio should be higher than 7.0 and the damper device yield ratio be at least 8.0% ($V_{damper}/V_{base\;shear$) to effectively reduce the base shear and the maximum drift of the uppermost story. When the Exo-type damping system was installed up to the fifth story, the stiffness ratio should be higher than 2.5 and damper device yield ratio needs to be at least 3.5% ($V_{damper}/V_{base\;shear$) for obtaining the target performance.

Optimizing a Multimedia File System for Streaming Severs (스트리밍 서버를 위한 멀티미디어 파일 시스템 최적화)

  • 박진연;김두한;원유집;류연승
    • Journal of KIISE:Computer Systems and Theory
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    • v.31 no.5_6
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    • pp.268-278
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    • 2004
  • In this paper, we describe our experience in the design and implementation of the SMART file system to handle multimedia workload. Our work has three design objectives: (ⅰ) efficient support for sequential workload, (ⅱ) avoiding disk fragmentation, (ⅲ) logical unit based file access. To achieve these three objectives, we develop a file system where a file consists of linked list of Data Unit Group. Instead of tree like structure of the legacy Unix file system, we use single level file structure. Our file system can also access the file based upon the logical unit which can be video frame or audio samples. Data Unit Group is a group of logical data units which is allocated continuous disk blocks. At the beginning of each Data Unit Group, there exists an index array. Each index points to the beginning of logical data units, e.g. frames in the Data Unit Group. This index array enables the random access and sequencial access of semantic data units. SMART file system is elaborately tailored to effectively support multimedia workload. We perform physical experiments and compare the performance of SMART file system with EXT2 file system and SGI XFS file system. In this experiment, SMART file system exhibits superior performance under streaming workload.

A Comparative Study of Contents on Children's Rights between South and North Korea through the UN Convention on the Rights of the Child (유엔아동권리협약 국가보고서를 통해 본 남북한 아동권리 내용 비교)

  • Kim, Seok Hyang;Chung, Ick Joong;Kim, Mi Ju;Oh, Eun Chan
    • Journal of the Korean Society of Child Welfare
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    • no.54
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    • pp.1-44
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    • 2016
  • Using the United Nations Convention on the Rights of the Child(UNCRC) as a frame of reference, this study examined South and North Korean children's rights as reported in the UNCRC and the pattern of changes in the reports depending on the period in which the reports were written. For this purpose, we reviewed Article 1 of the Convention to see what age range the South and North Korean governments, respectively, specify to define a child. We also analyzed the method and attitude of how each Korean government acknowledges the rights of children in the four general principles of the Convention("non-discrimination", "the best interests of the child", "the right to life, survival, and development" and "respect for the views of the child"). The results showed that there was asymmetric content between South and North Korea in the four general principles of the Convention. Both South and North Korea lack a sense of respect for the views of children. There were also differences in the rights of children depending on the distinct characteristics of each Korea. In South Korea, it is important to guarantee the rights of multicultural children and provide a plan for child safety. On the other hand, North Korea has emphasized that they provide the necessities of life and free education to children. Both Koreas have continuously submitted their reports and showed improvement in understanding the rights of children in each report. We conclude that it is essential for South and North Korea to build common ground in their respective contents on children and to establish a foundation of normative standards in the path to prepare for reunification. Moreover, we also conclude that South and North Korea should work collaboratively to reach mutual consent to achieve these goals.

A Starting Point of Formation and Development of Baekje-style Stone Stupa (백제양식석탑의 형성과 전개의 시발점(始發點))

  • Jun, Ji Hye
    • Korean Journal of Heritage: History & Science
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    • v.42 no.4
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    • pp.172-197
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    • 2009
  • The stone stupas of the Mireuk Temple Site and Jeongnim Temple Site were the beginning of Korean stone stupa and the unique ones stemming from the Baeje period. Therefore, the work of investigating the characteristics of these two stone stupas would give us a basis for understanding Korean stone stupas in a large scale and Baekje-style stone stupas in a narrow sense. As shown in some records, the excellent architectural skills of Baekje could be known by the fact that Abiji was invited to the building of Hwangryong Wooden stupa, one of the national undertakings of Shilla and the skills and styles related to stone stupas were thought to be disseminated in this process. However, it has not been very convincing that the stone stupas with Baekje styles were disconnected in an instant with the unification of Shilla, in terms that culture and art would inherited and developed. The current academic circle set a frame and defined all these types of stone stupas as Baekje-system stone stupas built in Goryeo period and put them in a uniformly chronological order. The popularization of Buddhism, support of regionally powerful clans and cultural revival were suggested as the factors of their appearance, but it seemed difficult to be assured that these led Baeje-style stone stupas to reappear in a moment by breaking the gap of about 300 years. Of course, it has not been active in Gyeongju area, but they have greatly influenced the stone stupas of Shilla; therefore, it would be possible to consider that they were developed but limited to certain areas. This study focused on the starting point of such development and investigated the formation of Baeje-style stone stupas through the stone stupas of the Mireuk Temple Site and Jeongnim Temple Site and their subsequent development through Wanggung-ri Stone Stupa.

Risk Analysis of Alcohol Consumption During Underwater Activity Using the Risk Assessment and Analysis Method (리스크 평가 및 분석 기법을 활용한 알코올 섭취에 따른 수중활동 시 리스크 분석)

  • SEO, Sang-Woo;KANG, Shin-Beum;KANG, Sin-Young
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.25 no.2
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    • pp.159-168
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    • 2019
  • This study was designed to investigate the physiological response of humans to alcohol during underwater activity and to complete related risk analysis. After comparing human responses to alcohol during underwater activity, we analyzed physiological changes and risk level using a new risk analysis method developed in this study, 'Risk Assessment and Analysis (RAA)'. RAA is a modified method based on an internal control frame work. It has 3 steps, the first of which is to analyze risk correlation. The second step is to quantify risk and build a risk database. The last step is to analyze the diagramed risk map. Using RAA, the risk levels of alcohol use underwater were calculated and diagramed. The diagramed risk map was then used to analyze the difference between risk levels underwater before and after alcohol use. As a result, it was found that risk level underwater increased after alcohol use. This study shows alcohol use increases the ratio of high risk groups during underwater activity. It also indicates that risk levels can be quantified according to the likelihood and impairment scale, which can potentially help in identifying high risk groups for intensive management underwater.

A Study on the Analysis of Reflective Journal of the Character Development Program of Christian University (기독교 대학의 인성 함양 프로그램 성찰저널 분석 연구 : K대학교의 밀알훈련 사례를 중심으로)

  • Lee, Seong Ah
    • Journal of Christian Education in Korea
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    • v.66
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    • pp.383-412
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    • 2021
  • The purpose of this study is to analyze the journal of reflection of students who participated in the character improvement education program. And it is a study that suggests ways to develop the program according to the results of analysis. Then, by collecting 208 reflective journals of students who participated in Milal training at K University, After the analysis was performed in the process of transcription, coding, and subject discovery, reliability was secured by calculating the Kappa coefficient for the analysis frame and analysis suitability. According to the results of the analysis of reflection journal. Through Milal training, the Milal spirit was understood as sacrificial service (sacrifice, devotion, lowering, serving, death, decay) and Milal (reproduction). We confirmed that It will have a life attitude related to the themes of labor (hardwork, work, patience, patience, perseverance). It can be said that through Milal training, self-reflection activities can be promoted, community character and collaboration skills can be cultivated, and the spirit of sacrificial service can be acquired. Through the results of this reflection journal analysis, it is necessary to further enhance the Milal training program, and it will be possible to provide implications to the character cultivation programs of other universities.

A Criticism about Neo-Confucianism and progressive Thought of Fu-Shan(傅山) (부산(傅山)의 리학(理學)비판과 개혁사상)

  • Hwang, Byong Kee
    • (The)Study of the Eastern Classic
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    • no.37
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    • pp.411-439
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    • 2009
  • Fu-Shan(傅山, 1607~1684) was a progressive actualist between the late Ming(明) dynasty and the early Qing(淸) dynasty. He regards the intellectuals at that time as scarecrows leaned on the empty and exaggerative moral philosophy which the neo-confucian of Song(宋) dynasty established. He thinks that the neo-confucian discussion cause harmful side effects, disregarding the utility side and the variety of the actual world. His thought becomes known all in political thought and literature. He asserts that the neo-confucian ideas provides the logical frame which regulates the actual world and creates a kind of absolute moral ideology. Therefore he insists that the Saint in the true sense of the word consequently is the social reformer and revolutionist who exposes the irrational elements of society. He insists that literature also must be able to express vividness of the actual world. He thinks that genuine literature must have creative contents and find one's own free wild way. He asserts that old literary style from the mimicry is the act which goes against human natural. He thinks that the writing must be able to express the actual world.

Metaverse platform-based flipped learning framework development and application (메타버스 플랫폼 기반 플립러닝 프레임워크 개발 및 적용)

  • Ko, Hyunjoo;Jeon, Jaecheon;Yoo, Inhwan
    • Journal of The Korean Association of Information Education
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    • v.26 no.2
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    • pp.129-140
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    • 2022
  • Our society is undergoing rapid changes due to COVID-19, and in particular, online learning using digital technology is being tried in various forms in the educational field. A change has occurred. However, the limitations of distance learning, such as reduced learning immersion in non-face-to-face educational situations, lack of interaction between teachers and learners, and lower basic academic ability, are constantly being raised, and an appropriate educational strategy is needed to solve these problems. This study focused on the concept of 'Metaverse' based on the interaction between the virtual world and the real world, and tried to verify the effectiveness of educational activities based on it. In detail, we propose an educational framework for realizing flipped learning in the Metaverse Virtual Classroom, and a frame developed by measuring the learning immersion of a single group with a teaching/learning program developed based on this. The effectiveness of the work was verified. When the metaverse platform-based flip learning framework and education program proposed in this study were applied, it was confirmed that learners' immersion in learning was improved.