• 지질공학
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• 제13권3호
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• pp.309-320
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• 2003

ASTM C 227-90에 의한 모르타르봉 팽창의 원인에 대해서 현재까지는 막연히 알칼리-골재 반응에 의한 것으로 알려져 왔으나 본 연구에서는 팽창의 원인을 알칼리-골재 반응에 의한 팽창 외에 겔 공극의 팽창과 골재 자체에 형성된 엽리나 쪼개짐에 물이 침투되어 물리적으로 팽창되는 간극수에 의한 팽창으로 세분하였다. 또한 총 팽창량을 이들 세분된 팽창요인별로 정량적인 계산을 실시한 바 골재에 따라서는 팽창결과가 주로 간극수에 의한 것도 있고, 알칼리-골재 반응에 의한 것도 있으며 이들이 복합적으로 작용한 것도 있음을 알게 되었다. 이러한 방법으로 현무암, 사암 등 몇 몇 골재의 문제점을 분석하였다 콘크리트는 현재 건설구조물의 대부분을 차지하고 있으며, 골재는 콘크리트의 75% 내외를 점유하고 있는 만큼 골재의 올바른 선정은 중요한 의미를 갖는다. 또한 이미 완성된 콘크리트 구조물에 골재와 관련된 문제점이 발생하였을 때 이를 치유하는데 정확한 원인을 알아내는 것이 중요하다고 보며 본연 구는 그러한 면에서 활용면을 찾을 수 있다.

• 패션비즈니스
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• 제11권1호
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• pp.38-47
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• 2007

In the modern society that is advancing rapidly, the hair art is also advancing and subdividing. The purpose of this study is to investigate unique field of formative as characteristics and forms of copper wire, focused on such a harmony of hair art, the present thesis aims at developing concept of hair art as a creative way, and recognizing the formative characteristics of copper wire as analyze and arrange the concept of hair art, formative, a way of practical application, material aspect, through literature, academic journals, photo data, and researched about prior piece, for example, architecture and costume with hair art, and then pieces of hair art were made. Influenced by the theory, applied the social phenomenon and the formative principles, produced the five pieces which includes balance, composure, flying, harmony, way, spring etc. The results of this research are outlined below. Firstly, It showed that the copper wire can express the mysterious and beautiful formative world, and it could know the possibility of design. Secondly, formative activity using copper wire can differ according to approach and interpretation, and it can be a works with aesthetic value. Thirdly, hair could be express the art of the three-dimensional forms which constitute the mixture of line, surface and space. So, hair art has enlarged the fields with development of technique, and changed to recognition of the hair art, and opened up a new field. Hair art will be positive fields to maximize the possibility, and not only the beauty artist but also the public will be communicate each other.

• Architectural research
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• 제17권1호
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• pp.13-20
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• 2015

The physical environment can dramatically affect students' feeling and their behavior, educational attainment, and the way in which we do school activities. Unlimited access to campus areas without appropriate securities have reported an increase of crime in school area and safety issues has encouraged school facility planners to install securities devices at every corner of buildings. However, it is still questionable whether this approach is enough to protect students and staffs from the victimization of crime, including thefts, burglaries and sexual offences. There has been continued doubt about the safety of educational facilities where individual college students are studying and enjoying extra-curricular activities. Therefore, the purpose of this study is intended to investigate the effects of perception of safety by students on the level of academic performance at public outdoor environment of university campus. An extensive literature noted that the central element of modern school design principle mainly holds the theory of crime prevention through environmental design (CPTED) and the concept of defensible space. The second generation of CPTED also focused on social soft issues as well as situational factors, which extends beyond mere physical design to include social factors. The correlation analysis found that the effect of sense of safety does appear to be statistically significant on the facilitation of academic achievement. However, the analysis of Chi-square concluded that the perception of safety was not related to demographic and socio-economic profiles of the group except for gender. Further, stepwise multiple regression analysis revealed that the most prime predictor for academic achievement were 'safe public outdoor space/paths' at university campus environment, implying careful design of public open space and sidewalks based on the guideline of CPTED. The study also demonstrated that as the level of positive perception of safety rose, the overall academic achievement also responded to the specified rate (${\beta}=.99$). Finally, the findings reinforce an evidence that high-quality school environments are a positive factor in student academic performance.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제15권12호
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• pp.968-972
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• 2009

멀티 코어 프로세서는 현재 많은 고성능 서버에 적용되어 사용되고 있다. 최근 이들 서버는 점차 높은 네트워크 대역폭 활용을 요구하고 있다. 이러한 요구를 만족시키기 위해서는 멀티 코어를 효율적으로 활용하여 네트워크 처리율을 향상시키는 방안이 필요하다. 그러나 현재 운영체제들은 멀티 코어 시스템을 멀티 프로세서 환경과 거의 동일하게 다루고 있으며 아직 멀티 코어의 고유 특성을 고려한 성능 최적화 시도는 미흡한 상태이다. 이러한 문제를 해결하기 위해서 본 논문에서는 멀티 코어의 특성을 최대한으로 고려하여 프로세스 스케줄링을 결정함으로써 통신 성능을 향상시키는 방안에 대해서 연구한다. 제안되는 프로세스 스케줄링은 멀티 코어 프로세서의 캐쉬 구조, 프로세스의 통신 집중도, 그리고 각 코어의 부하를 기반으로 해당 프로세스에게 최적의 코어를 결정하고 스케줄링한다. 제안된 기법은 리눅스 커널에 구현되었으며 측정 결과는 최신 리눅스 커널의 네트워크 처리율을 20%까지 향상시켰으며 프로세서 자원은 55% 더 절약할 수 있음을 보인다.

• 한국정보과학회논문지:소프트웨어및응용
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• 제36권5호
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• pp.386-395
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• 2009

다계층 구조로 설계된 현대의 분산 애플리케이션 아키텍처에서 비즈니스 엔티티는 모든 서비스 로직 컴포넌트들을 관통하는 일종의 횡단관심사(Crosscutting Concerns)이다. 그러므로 비즈니스 엔티티가 변화하면 이와 관련된 서비스 컴포넌트들은 비록 애플리케이션 프레임워크의 공통적인 기능을 구현한 서비스 로직 컴포넌트라 할지라도 새로운 비즈니스 엔티티를 다를 수 있도록 수정되어야 한다. 본 논문에서는 비즈니스 엔티티, 즉 외부화(externalized)된 데이터에 대한 가변성(variability)을 처리하는 DTT 컴포넌트 모델(Data Type-Tolerant Component Model)을 제시한다. DTT 컴포넌트 모델은 SCDT(Self-Contained Data Type)와 가변점(Variation Point) 인터페이스를 통해 프로덕트 라인의 데이터 가변성을 구현 수준에서 구체적으로 표현하고, 서비스 컴포넌트 코드 수정대신 비즈니스 엔티티와 SCDT간 타입 변환을 지원하는 데이터 타입 컨버터를 도입함으로써 애플리케이션 엔지니어링 효율을 향상시킨다. 서비스 컴포넌트가 외부화된 비즈니스 엔티티를 직접 다루지 않고 SCDT 만을 다루게 함으로써 데이터와 함수의 커플링을 다시 컴포넌트 수준에서 로컬화했다는 점이 DTT 컴포넌트 모델의 의의라 할 수 있다.

• 한국산학기술학회논문지
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• 제11권2호
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• pp.628-633
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• 2010

1910년대 주거담론은 위생론 일반을 다루는 글, 여성의 주택청결 관리를 계몽하는 글 그리고 일본인이 한국전통주택을 관찰하고 평가하는 글에서 등장한다. 1900년대의 그것과 비교하면 위생에 초점을 두는 점은 같지만 깊이와 양에서 매우 위축되어 있다. 담론의 주체와 맥락도 달라졌다. 1900년대 주거담론은 위생을 국가의 문명화와 부국강병을 위한 방법론으로 인식한 개화론자들이 주도했고 국가의 공중위생 책무를 강조하는 담론과 함께 전개되었다면, 1910년대는 여름철이나 환절기 전염병을 예방 차원에서 개인위생을 계몽하는 의사나 의료관료들을 통해 주로 개진되었다. 1910년대 조선총독부의 환경위생사업에서 식민지 조선인의 거주지와 주택은 제외되어 불결했고, 공중위생정책에서 차별받는 그들에게 주거의 청결은 개인의 책임지고 해결해야 할 문제였다. 주택의 불결은 민족적 미개함 열등함의 표상이 되었고 식민지지배의 당위성을 공고히 하는 효과를 낳았다. 또한 1920년대 주거개량 문제가 조선인의 인종적 개량과 문명화의 과제로서 논의되는 데 심리적 배경이 되었다.

• Wind and Structures
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• 제15권6호
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• pp.481-494
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• 2012

The greenhouse type metal structures are increasingly used in modern construction of livestock farms because they are less laborious to construct and they provide a more favorable microclimate for the growth of animals compared to conventional livestock structures. A key stress factor for metal structures is the wind. The external pressure coefficient ($c_{pe}$) is used for the calculation of the wind effect on the structures. A high pressure coefficient value leads to an increase of the construction weight and subsequently to an increase in the construction cost. The EC1 in conjunction with EN 13031-1:2001, which is specialized for greenhouses, gives values for this coefficient. This value must satisfy two requirements: the safety of the structure and a reduced construction cost. In this paper, the Navier - Stokes and continuity equations are solved numerically with the finite element method (Galerkin Method) in order to simulate the two dimensional, incompressible, viscous air flow over the vaulted roofs of single span and twin-span with eaves livestock greenhouses' structures, with a height of 4.5 meters and with length of span of 9.6 and 14 m. The simulation was carried out in a wind tunnel. The numerical results of pressure coefficients, as well as, the distribution of them are presented and compared with data from Eurocodes for wind actions (EC1, EN 13031-1:2001). The results of the numerical experiment were close to the values given by the Eurocodes mainly on the leeward area of the roof while on the windward area a further segmentation is suggested.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 1995년도 춘계공동학술대회논문집; 전남대학교; 28-29 Apr. 1995
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• pp.185-192
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• 1995

A common control model used to implement computer integrated manufacturing(CIM) is based on the hierarchical decomposition of the shop floor activities, in which supervisory controllers are responsible for all the interactions among subordinates. Although the hierarchical control philosophy provides for easy understanding of complex systems, an emerging manufacturing paradigm, agile manufacturing, requires a new control structure necessary to accommodate the rapid development of a shop floor controller. This is what is called CSCW(computer supported cooperative work)-based control or component-based heterarchical control. As computing resources and communication network on the shop floor become increasingly intelligent and powerful, the new control architecture is about to come true in a modern CIM system. In this paper, CSCW-based control is adopted and investigated, in which a controller for a unit of device performs 3 main functions - planning, scheduling and execution. In this paper, attention is paid to a planning function and all the detailed planning activities for CSCW-based shop floor control are identified. Interactions with other functions are also addressed. Generally speaking, planning determines tasks to be scheduled in the future. In other words, planning analyzes process plans and transforms process plans into detailed plans adequate for shop floor control. Planning is also responsible for updating the process plan and identifying/resolving replanning activities whether they come from scheduling or execution.

• KIEAE Journal
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• 제13권6호
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• pp.29-37
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• 2013

The modern town houses in Philippines has been changed through Spanish colonization over 300years and American military administration in 20C. Especially Cebu, the first contemporary capital of colonized Philippines by Spain, has various cultural characteristics and historical remains including old houses. By the economy condition in Cebu growing up, Bahay na bato, stone and wood house, has been settled for the elite or middle class of Cebu around 19C influenced by Spanish or Europe and Philippines native house called bahay kubo. Bahay na bato shows a common features, as revealed in this study, which all of them has a two stories with cut stone curtain wall and wooden beam and lintel, fronting the main street by approaching directly from street. And spatial separating also shown by setting living space to upper level instead of using storage or entrance hall called zaguan in lower level. Bahay na bato studied here shows a particular appearances in elevation, having volada and elaborate geometric or floral window pattern, also playing a role for ventilation with vetanilas below volada and main window in section. They have a rectangular plan with caida, sala, comedo, azotea almost similar to Spanish and ealier colonial Mexico style mixed with Philippines traditional style showing the strong spatial separation functionally and space wideness for party occasionally.

• 건축역사연구
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• 제7권4호
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• pp.113-130
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• 1998

This is a study on the ㄱ-shaped church in Korean Protestant churches. Since the Protestantism had been introduced into Korea, the style of ㄱ-shaped church was the popular style that have been fashioned in all the country of Korea. When the Protestantism was introduced into Korea, ideology which ruled over the Society of Chosun Dynasty was the Confucianism that emphasized the precepts, for example, the loyalty for the King, distinction between the sexes and so on. The Korean Protestants built the church which had ㄱ-shaped plan, so that they solved the second problem : 'distinction between the sexes'. The style of the ㄱ-shaped church is one of the characteristics which distinguish the Korean church from other nations'. Actually the ㄱ-shaped churches had been built by Korean Protestant denominations, from the early days of introducing the Protestantism till the end of 1920's. Even though most of the style of the ㄱ-shaped church is replaced with the modern style according to the extension of religious influence, luckily the ㄱ-shaped two churches : Kumsan Church(1908), Toodong Church(1929) are in existence in the Provice of ChonBuk. The purpose of this study is to make the architectural characteristics of the ㄱ-shaped church clear. This study is based on the actual survey of the ㄱ-shaped churches in existence: Kumsan Church, the Toodong Church and on the documents, photographs, interviews and so on for investigation not existing one now. The ㄱ-shaped church have the plan to separate men's side from women's with a right angle and have a pulpit which was placed at the meeting point of the front part of men's and women's sides. Generally, seen from the court, the churches have men's side in left and women's one in right. There was a screen blocking both sides in the church. But it disappeared in 1920's according to the change of the social conventionality. Most of its structural form is the Korean wooden style. The ㄱ-shaped church appeared in a transition period of the Korean church architecture.