• 제목/요약/키워드: Following-Up Characteristics

검색결과 652건 처리시간 0.029초

유한요소법을 이용한 반강접합부의 구조해석모델 (Analysis Model of Semi-Rigid Joint Using Finite Element Method)

  • 양한승;이필우
    • Journal of the Korean Wood Science and Technology
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    • 제23권3호
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    • pp.40-47
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    • 1995
  • This study was carried out to develop a finite element analysis model that considers the semi-rigid characteristics of a wood-dowel joint, which is different from conventional joints that are used in the field of engineering. Wood-dowel joints are classified as semi-rigid joints that possess the following characteristics: (1) they are less stiffer than rigid joints and (2) their stiffness is determined by the dowel's diameter, depth of dowel embedment in the face member and quantity of pin dowels. In this study a finite element model that considers the changes in stiffness according to the above mentioned factors was developed and its suitability was verified by experiments using a wood-dowel joint test specimen made up of particleboards. After comparing the experimental results and the analysis results of the wood-dowel joint which was applied with the proposed finite element model, less than 10% of error was found which is considered to be negligibly small. Hence this shows that this proposed finite element model can be used to predict deformation of wood-dowel joints.

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신불산 고산습지 보호지역 저서성 대형무척추동물의 군집특성 및 변화상 연구 (A Study on the Community Characteristics and Changes of Benthic Macroinvertebrates in the Conservation Area of the Shinbulsan Wetland)

  • 홍성진;정선우
    • 한국환경과학회지
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    • 제29권11호
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    • pp.1079-1088
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    • 2020
  • The Shinbulsan wetland, located in Yangsan-si, Gyeongsangnam-do, South Korea, was designated as a conservation area in 2004. The area was monitored from 2015 to 2019 to investigate the community characteristics and changes of benthic macroinvertebrates. Between 2015 and 2016, several insects of the orders Ephemeroptera, Odonata, and Hemiptera were identified, but their numbers decreased significantly in 2017 and 2018 following the loss and recovery of the moor owing to drought. During this period, there were relatively more insects of the order Diptera. Within this order, three functional feeding groups, gathering-collectors, plant-piercers, and predators were investigated. Predator species were the most abundant (83.3%), whereas gathering-collectors accounted for the largest proportion of individual insects (50.5%). Between 2015 and 2016, when the moors were stable, groups I and III had the highest community stability. After 2017, when the moors had dried up, group III effectively disappeared because of its lower relative resistance and resilience, and only taxa belonging to group I remained. The results of this study indicate that benthic macroinvertebrates that adapt early during moor formation inhabit the Shinbulsan wetland.

공연시설 객석공간의 단면유형 특성에 관한 연구 (A Study on the Section Type Characteristic of the Audience's Space in Performing Facilities)

  • 고재민;황미영;정성욱;이종진;임채진
    • 한국실내디자인학회논문집
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    • 제15권2호
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    • pp.127-137
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    • 2006
  • In the viewing of public performance arts, it needs to make space construction appropriate for performance purposes, because the section type has an effect on audience's inspection. Therefore, this study researches the intentional characteristics and comprehends the relationship between correlation factors to influence on section type of audience space in performance facilities. In addition to, this study comes under fundamental research to propose the course of standard plan, accord with diverse requirement, in the special performance facilities which will be built up. The results as following; 1) The factors that influence the section type of the audience's space in performing facilities are divided as two elements. The first element is construction of space, viewing environment, and the second element is visual characteristic, and acoustic characteristic. 2) The section type are classified as six types, A-type(Flated type), B-type(Sloped type), C-type(Gabled type), D-type(Arched type), E-type(Reverse arched type), and F-type(Reverse sloped type). 3) Characteristics are deduced by the section type, construction of space and viewing environment are restricted by the characteristics of the section type.

축 압궤하중을 받는 Gr/E 복합재 튜브의 에너지 흡수특성 (The Absorbed Energy Characteristics of Gr/E Composite Tubes under Axial Collapse Load)

  • 양현수;김영남;최흥환
    • 대한안전경영과학회지
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    • 제4권2호
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    • pp.189-197
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    • 2002
  • Composites have wide applications in aerospace vehicles and automobiles because of the inherent flexibility in their design lot improved material properties. Composite tubes in particular, are potential candidates for their use as energy absorbing elements in crashworthiness applications due to their high specific energy absorbing capacity and the stroke efficiency. Their failure mechanism however is highly complicated and rather difficult to analyze. This includes fracture in fibers, in the matrix and in the fiber-matrix interface in tension, compression and shear. The purpose of this study is to investigate the energy absorption characteristics of Gr/E(Graphite/Epoxy) tubes on static and impact tests. The collapse characteristics and energy absorption of a variety of tubes have been examined. Changes in the lay-up which increased the modulus increased the energy absorption of the tubes. Based on the test results, the following remarks can be made: Among CA15, CA00 and CA90 curves the CA90 tube exhibits the highest crush load throughout the whole crush process, and max load increases as interlaminar number increase. Among all the tubes type CC90 has the largest specific crushing stress of 52.60 kJ/kg which is much larger than other tubes.

R-22 및 R-134a의 세관 내 유동 특성에 관한 연구 (Study on the Flow Characteristics of R-22, R-l34a in Small Diameter Tubes)

  • 홍진우;정재천;장승환;권옥배;오후규
    • 설비공학논문집
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    • 제14권9호
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    • pp.756-765
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    • 2002
  • Experimental work was performed on the flow characteristics of R-22 and R-l34a in small diameter tubes. The experimental apparatus was made up of liquid pump, pre-heater, sight-glass, condenser and measurement instruments. The sight-glass for flow pattern observations was located at the outlet of the pre-heater. The experiment was carried out to show the flow characteristics of R-22 and R-l34a. Data were taken with test conditions in the following ranges; the mass flux was ranged from 100 to 1,000 kg/$m^2s$, the saturation temperature was $30^{\circ}C$ and the vapor quality was ranged from 0.1 to 0.9. The main results were summarized as follows; In the flow patterns during evaporation, the annular flow in a 2 mm inner diameter tube occurred at a relatively lower quality and mass velocity, compared to the flow in a 8mm inner diameter tube. The evaporation flow in small diameter tubes has been shown major deviations with the Mandhane, Taitel-Dukler's and Wambs-ganss' flow pattern maps but it was similar to the Dobson's flow pattern map.

Characteristics of Postmodernity in Chinese Animation Films

  • Cao Yijun;HyunSeok Lee
    • International Journal of Internet, Broadcasting and Communication
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    • 제16권1호
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    • pp.297-306
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    • 2024
  • At a specific juncture in industrial development, animation emerges as a product imbued with discernible features characteristic of the mechanical replication era. Through the integration of technology, it continually gives rise to postmodern cultural traits. Notably, the trajectories of postmodernism in China and Western Europe exhibit divergence. Following the reform and opening up, both postmodernism and modernism found acceptance and became interwoven. Chinese animated films, influenced by postmodernism, actively challenge traditional animation norms, exemplifying postmodern characteristics such as deconstruction, intertextuality, indeterminacy, collage, and diversity. This article endeavors to delve into the discourse surrounding postmodernism in both Western and Chinese contexts. It aims to scrutinize the manifestation of postmodern features, particularly with regard to ethnic elements, traditional mythological texts, and gender representations in Chinese animated films. Consequently, it becomes imperative to contemplate the affirmative adaptation and independent development of postmodernism within the unique Chinese milieu. Building upon an analysis of noteworthy traditional animated film genres and developmental trends in China, this study focuses on animated films from the 21st century, specifically Monkey King: Hero is Back, Big Fish & Begonia, Dahufa, White Snake and Nezha: Birth of the Demon Child. The paper seeks to explore the overarching characteristics of postmodernity reflected in the linguistic environment of postmodernism in China.

창업가의 특성요인이 창업의지에 미치는 영향 -국내 창업 멘토링의 조절 효과를 중심으로- (Effect of Entrepreneur's Characteristics on the Intention of Entrepreneruship -Focusing on the Moderating Effect of Entrepreneurship Mentoring in Korean-)

  • 육창환;전인오
    • 한국콘텐츠학회논문지
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    • 제14권10호
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    • pp.661-676
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    • 2014
  • 경기침체로 인하여 남녀 노소를 막론하고 창업에 대한 관심이 고조되고 있는 것이 작금의 현상이다. 대학생 창업과 실버세대의 정년퇴직이 날로 늘어나고 있어, 이에 대한 준비의 일환으로 창업가의 특성요인이 창업의지에 미치는 영향에 관한 연구를 수행하고자 한다. 본 연구에서는 창업에 미치는 영향을 분석하기 위하여 예비 및 기창업자 328명을 대상으로 하여 설문조사를 실시하였으며, 이를 SPSS 20.0 통계프로그램을 활용하여 신뢰도분석, 요인분석, 상관관계를 분석한 후 회귀분석을 통하여 다음과 같은 결론을 도출하였다. 첫째, 개인적인 특성요인과 환경적인 요인은 창업의지에 영향을 주었다, 둘째, 개인적인 특성요인과 환경적인 요인은 창업 멘토링에 영향을 주는 것으로 나타났다. 특히 창업환경요인은 창업의지에 창업멘토링이 조절효과를 주는 것을 알 수 있었다.

한국(韓國)패션에 나타난 미의식(美意識) (A Study on Aesthetic Beauty Consciousness of Contemporary Fashion in Korea)

  • 조규화
    • 패션비즈니스
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    • 제1권2호
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    • pp.1-19
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    • 1997
  • This thesis is a reflection of Korean aestheticism and how it has evolved and influenced Korean contemporary fashion throughout the last century. Up to the current, there have been five notable trends of fashion that have been influenced from and have reflected the qualities emblematic of various periods in Korean history. They can be characterized as the era of Missionary fashion, Uniform fashion, Salon fashion, Brand Name Fashion, and finally, fashion from the current era of diversification. The specific characteristics of each fashion era have been analized and illustrated in a comprehensive table. Design characteristics of Korean contemporary fashion are as follows : 1. A point of emphasis is given to facial feature, unconstructive design and ample silhouette and A silhouette, two-piece and pants. Korean style wrap skirt, a smooth curve and layered style. 2. Effect of flatness from material; as methods of quilting, reinforced dual stitching(Kaeki), patchwork, embroidery and goldfoil thread extra, it is turned up that texture of cloth stuff and effects of flatness. 3. Simple color combinations give effects in two different directions For instance, white and a variety of vivid colors, a dull color and bright colors, black, blue. 4. Over-design, diffusion of fashion. Based on the design characteristics described above, the essence of Korea's beauty consciousness can be captured and summarized through the following points: 1. Emotionalism and non-characterism: traditional and simple natural beauty and modernized natural beauty. 2. From authoritism to non-authoritism: traditional and formal personal beauty and casual characteristic beauty. 3. Polaris (antithesis) phenomenon: chastic beauty and ostentatious beauty, simplicity and lavishness, conformity of fashion and originality. Although the beauty consciousness of Korean contemporary fashion is changing from traditional passive metaphor to aesthetic expressionism for the new generation, after all the basic foundation or root of the spiritual beauty of idealism is usually recognized by focusing on the face.

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농어촌 정주생활권 개발계획 수립을 위한 마을특성분석 방안 연구 -성내면을 대상으로- (A Study on the Analysis of Village Characteristics for Planning Rural Settlement Area Development - Mainly on Sungnae-Myun District -)

  • 김학응;오무형;이신호
    • 한국농공학회지
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    • 제38권6호
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    • pp.51-63
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    • 1996
  • This study is about the problems found in the process of the current governments planning rural settlement area development. As a measure to solve them, It proposed the analysis method of village characteristic in terms of standard score and tried to use this method as a basic material in planning more effective rural settlement area development. On the basis of the above analysis, which is an objective basic material to solve the problems revealed in the process of the bottom-up development planning by the residents' demands, It shows the following conclusion about what method should be applied to each part according to a village's characteristics and its development level. 1. Accessibility can be a basic material for setting the local area, analyzing its settlement system, and them such development facilities as village-linking roads, rural road, or various kinds of bridges and determining the investment priority. 2. With the index of the industrial basis, we can see what village has plenty of social, economical resources including advanced industrial facilities and looking into the advance level of the industrial basis, we can get some information about determining the local area development direction such as estashing the plan to build a farm product gathering center, a collective work place, storage facilities, and special housing development. 3. Since the issue about living environment is raising it's head, compared to weakened agricultural competitive power, with the analysis of this living environment, we can get an objective basic material for solving problems caused by the local egoism and the effective investment strategy of the limited resources. Therefore, It is necessary that we should abstain from expert-centered planning and formal public opinion-collecting and on the basis of this analytic result, we should plan development. We need to continue our research about index selecting and differentiation, weight etc. and using these analysis methods, we should make up a systematic development plan by analyzing village characteristics and setting the development direction.

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일본 가고시마 이즈미 후모토 마을의 근세 무사주택의 평면공간특성에 관한 연구 (A Study on the Plane Spatial Characteristics of Modern Samurai Houses in Izumi Fumoto Village, Kagoshima, Japan)

  • 김윤상
    • 대한건축학회논문집:계획계
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    • 제34권5호
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    • pp.29-38
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    • 2018
  • This study aims to analyze the spatial characteristics of a group of samurai residences among other traditional Japanese villages and to accumulate the village-level sample data of a residential group, which can serve as the foundation for a wide range of discussions. Using data that had been gathered since 1989, this study draw up a prototype floor plans to analyze the indoor spatial features of the residences in the modern period, and sampled 35 samurai houses. The following are the results of this study. The general characteristics of traditional Japanese houses were found among many Izumi Fumoto samurai residences up until the early Meiji period. However, after gradually the floor plan became more and more simplified; connections between rooms were reduced, decreasing their flexibility; and there was a rise in the number of houses with a larger area devoted to the Nando, a room for women and family members. The access of a visitor involved changes in one's eye-level view and established physical and psychological boundaries, which this study conjectures was used as a method to ensure that the visitor recognized the authority of the patriarch and to raise the family's reputation. As their floor plan was simplified, Izumi Fumoto samurai houses established one's eye view, boundaries, and procedures as a way to enhance the authority of the man of the family and the family's reputation. In addition, while there was an increasing number of residences that expanded the area of the Nando, in which family members slept and used the space in a stable way, they maintained the exclusivity of private space and did not clearly show who would use it.