• 제목/요약/키워드: general forms

검색결과 862건 처리시간 0.055초

${\cdot}$${\cdot}$학 측면에서의 CM 활성화 정책과제 (Policy Plans for promoting the Construction Management in Korea)

  • 이필원;최재호
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2002년도 학술대회지
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    • pp.563-566
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    • 2002
  • 본 논문은 앞으로 CM 활성화를 위한 기본적인 틀을 만들어 가는 현 시점에서 최근 정부 및 학계 중심으로 이루어 졌던 세미나 및 연구동향을 살펴보고 관${\cdot}$${\cdot}$학 분야에서 상호협력하에 추진해야할 정책방안을 제시하였다. 먼저 CM의 수요분석을 통해 활성화 방안의 큰 줄기를 파악한 후 협회연합체, 학회, 교육단체, 그리고 제도개선 이렇게 4개의 그룹으로 총 16개의 상세한 방안들을 제시하였다. 건설업의 특징은 확립된 제도 안에서 건설 주체간의 복잡한 이해관계를 기반으로 운영되기 때문에 어느 한 주체만의 노력으로는 CM의 활성화를 이룩할 수 없다. 따라서 국내 시장에 CM 정착 시기를 앞당기기 위해서는 제시된 CM 활성화 정책방안을 근간으로 관련 주체들간의 지속적이고 체계적 노력이 필요하다.

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다층 층간분리된 복합적층보의 휨강성 감소 (Flexural Rigidity Reduction of Multi-Delaminated Composite Beams)

  • 박대효;백재욱;조백순
    • 한국강구조학회 논문집
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    • 제13권3호
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    • pp.233-244
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    • 2001
  • 본 연구에서는 다층 층간분리된 복합보의 휨강성 감소를 고찰하였다. 휨강성 감소를 평가하기 위해서 이론해석을 수행하였다. 층간분리가 복합보에 휨강성 감소에 주는 영향을 고찰하기 위해서 지배운동방정식이 유도되었고, 층간분리된 각각의 분할보는 연속조건을 이용한 반복관계를 이용하여 구해졌다. 복합적층보에 층간분리가 여러 층에서 발생한 경우에 대해 다양한 적층순서와 여러 가지 형태의 층간분리 형상으로 모델링하여 결과를 비교하였다. 다층 층간분리가 존재하는 적층복합보의 휨강성을 평가하는데 있어서 본 연구는 유용하게 활용될 수 있다.

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말레이시아 전통주택의 특성에 관한 연구 - 루마 펭훌루 사례를 중심으로 - (A Study on the Characteristics of the Traditional Malay Houses - case study of Rumah Penghulu -)

  • 주서령;고영은
    • 한국실내디자인학회논문집
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    • 제19권6호
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    • pp.129-140
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    • 2010
  • Malaysian traditional houses are basically post-and-beam structures raised on pillars, with gabled roofs. They were designed and built by the people themselves to meet specific needs, accommodating the values, economies and ways of life of cultures that produce them. The main purpose of this study is to understand the form and culture of Traditional houses in Malaysia through two parts. The first part is to summarize the general characteristic of traditional houses of Malaysia in the aspect of two different perspectives. One is the climate perspective, for which the analysis was made on the primary characteristics such as the climate, material, structure of the vernacular houses. The other one is the social-cultural perspective which try to find the religion, belief, life style and social and family relationship which controlled the forms of the housing under the surface. As a result, this study summarise and find the outstanding and unique meaning and definition of the traditional houses in Malaysia. The second part is to survey the specific case of the traditional house. Rumah Penghulu which were located in Kuala Lumpur were analyzed. As a result, this study summarise and find the formal and symbolic features of the traditional Malay houses. We hope that this study addresses the blank area in Korean housing studies about Southeast Asia countries which have not been clearly introduced yet.

원자력 발전소 사고의 근사적인 베이지안 예측기법 (An Approximation Method in Bayesian Prediction of Nuclear Power Plant Accidents)

  • 양희중
    • 대한산업공학회지
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    • 제16권2호
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    • pp.135-147
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    • 1990
  • A nuclear power plant can be viewed as a large complex man-machine system where high system reliability is obtained by ensuring that sub-systems are designed to operate at a very high level of performance. The chance of severe accident involving at least partial core-melt is very low but once it happens the consequence is very catastrophic. The prediction of risk in low probability, high-risk incidents must be examined in the contest of general engineering knowledge and operational experience. Engineering knowledge forms part of the prior information that must be quantified and then updated by statistical evidence gathered from operational experience. Recently, Bayesian procedures have been used to estimate rate of accident and to predict future risks. The Bayesian procedure has advantages in that it efficiently incorporates experts opinions and, if properly applied, it adaptively updates the model parameters such as the rate or probability of accidents. But at the same time it has the disadvantages of computational complexity. The predictive distribution for the time to next incident can not always be expected to end up with a nice closed form even with conjugate priors. Thus we often encounter a numerical integration problem with high dimensions to obtain a predictive distribution, which is practically unsolvable for a model that involves many parameters. In order to circumvent this difficulty, we propose a method of approximation that essentially breaks down a problem involving many integrations into several repetitive steps so that each step involves only a small number of integrations.

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인덕턴스 변화에 강인한 계통연계형 인버터의 복소 벡터 전류제어기 (Complex Vector Current Control of Grid Connected Inverter Robust for Inductance Variation)

  • 이태진;조종민;신창훈;차한주
    • 전기학회논문지
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    • 제65권10호
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    • pp.1648-1654
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    • 2016
  • This paper analyzes complex vector current control for the enhanced cross-coupling compensation in accordance with parameter variation in grid-connected inverter system, and verifies through simulation and experiment. Complex vector current control is performed in the synchronous reference frame through d-q transformation. It generates cross-coupling components with rotating nominal angular frequency. In general, cross-coupling elements are compensated by decoupling terms added to output of conventional decoupling PI controller. But, it is impossible to compensate them perfectly which transient response is especially deteriorated such as large overshoot and slow tracking, when variation of grid impedance or measurement error occurs. However, complex vector current control can improve stability and response characteristic of current control regardless of the situation as before. Decoupling controller and complex vector controller are represented through complex forms, and these controllers are analyzed by using frequency response in s-domain, respectively. It is verified that complex vector controller has more superior response characteristic than decoupling controller through MATALB, PSIM and experimental in 5kW grid-connected inverter when L filter parameter is varied from 1.1mH to increase double, 2.2mH.

한국의 현행색인지에 관한 분석적 연구 (An analytical study on the major Korean periodical indexes)

  • 이절자;박준식
    • 한국도서관정보학회지
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    • 제24권
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    • pp.365-389
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    • 1996
  • This study attempts to analyze the major periodical indexes and catalogs of 231 titles published in Korea in the form of monographs from 1973 to 1993, in order to identify the trends of their publications and the problems in its compilation and to suggest an idea for the improvements. The results of this can be summarized as follow : 1. The publication of indexes are concentrated on some subject fields including those of social science. And there should be general indexes in the fields of the humanities and pure sciences for the researches in these fields to consult. 2. The titles of the indexes are represented by various forms. 3. The materials included are extended to all types of them including monographs, serials, these and dissertations, and newspapers, so that enhances the usefulness of the subject indexes. 4. Most of indexes are published in quarterly or yearly and seldom publish the cumulative editions. 5. Most of indexes(140 titles, 90%) are classified indexes. 6. The descriptions include basic elements of author, title, translator, contributed title, issue number, date, pages, etc, in the case of most of indexes. 7. Cross reference are seldom used, because most of indexes are classified ones. 8. Auxiliary indexes or a n.0, ppendixes are not included in 34 titles of 21%.

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서양백과사전의 역사적고찰 (Historical study of western encyclopaedia)

  • 강혜영
    • 한국도서관정보학회지
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    • 제13권
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    • pp.1-28
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    • 1986
  • An outline of the scope and history of encyclopaedias is essentially a guide to the story of the development of scholarship, for encyclopaedias stand out as landmarks throughout the centuries, recording much of what was known at the time of publication. the early stage of encyclopaedias originated a summaries of scholarship in forms comprehensible to their readers, so that compiled their works single-handedly. The impact of Christianity brought a new phase in Western encyclopaedia making. As religion is emphasized in the encyclopaedias of those time, it pervades the whole of their contents. It was made for Christian education. The general trend in treatment in the Middle ages was arranged by subject. Most of the encyclopaedias issued before the introduction of printing into Europe having been arranged in a methodical or classical form, the alphabetically arranged encyclopaedia has a history of less than 1000 years. By influence of printing and Renaissance, a turning point came with encyclopaedia making. There were just as increasingly preferred to put practical topics first. Until those time, thought in terms of arranging their entries in alphabetical order has already familiarized. By generalization of public education in 19th-century, there were increasingly the number of purchasers so that prevailed commercial publication. It was those time that was settled the features of contemporary such as multivolume compendium of all available knowledge, complete with maps and a very detailed index, as well as numerous adjuncts such as bibliographies, illustrations, lists of abbreviations and foreign expressions, gazetteers, and so on.

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강호시대(江戶時代) 복식에 나타난 기하학문양에 관한 고찰 (A Study on the Costume of Geometric Pattan in Edo Period)

  • 박경미;박옥련
    • 한국생활과학회지
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    • 제13권5호
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    • pp.799-809
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    • 2004
  • Our study found that the types and forms of patterns of Japan, although they are similar to those of Korea and China, hold their own distinctive aesthetic awareness. They were made so, because the Japanese had not simply copied the patterns from other countries and also had changed them in various ways for ages. Especially, geometric patterns were widely used on some types of kimono costumes and belts in Edo period. One of the most widely used patterns was called Suk Chup Mun, and Tatewaku pattern was another. The San Gil Mun and Chil Bo Mun pattern was least used. In the patterns combination, that of animal and plant patterns was general. A single geometric pattern was not used, but if any, it was in Sima patterns and latticed patterns. On the other hand, the combination of geometric and plant patterns was more frequently used as composite patterns than any other pattern, such as geometric pattern with home tools, or one with animal patterns or nature patterns. The geometric patterns that had appeared in Edo period were combined in paintings along with animal and home tools patterns, so it could become a representative pattern of the age.

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대구광역시 아파트 저층부 석재 사용 실태 분석 (Analysis on Material Color and Use of Stone for the Lower-Parts of Apartment in Daegu)

  • 이예지;김소희
    • 한국실내디자인학회논문집
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    • 제27권1호
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    • pp.132-139
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    • 2018
  • The high-rise and high-density apartment complexes are built on a large scale and occupy a large portion of the city. The facade of the apartment has a great influence on the cityscape. In particular, the lower part of apartment design gives people to important impressions. For the harmonious landscape of the city, the color plan emphasizes its importance as an influential visual design element that forms the urban landscape. In specialized apartment design, especially finishing material on lower-parts of apartment which is recognized by pedestrian is more important planning factor. Also, finishing material which is one of the primary design elements is important for making the entire image about the building with color. Nowadays stone is mostly used for specialized design on lower-level in apartments. Stone makes luxurious image and harmonious landscape as a nature material. But when planning for design, only general stone graphic or pictures is used without specific plan, after construction, there is a big difference between a plan and the actual color and image. Thus based on exact understanding of stone, I analyzed current state of expression for stone which is used for lower-parts of apartments in Daegu. By this, the purpose of this study is to present detailed data to offer the basis for planning specialized design of lower-parts of apartment.

BAEC세포에서의 Laminin 이형체 Subunit의 회합에 관한 연구 (Subunit Assembly of Laminin Variants in Cultured BAEC)

  • 전훈;임강현
    • 동의생리병리학회지
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    • 제16권4호
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    • pp.680-683
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    • 2002
  • Bovine aortic endothelial cells(BAEC) produce two variant forms of laminin with a subunit composition of AB1B2 and A'B1B2. Analyses of the intracellular assembly of these subunits revealed that the B1B2 dimer formed first, and that A or A' joined to form the AB1B2 or A'B1B2 trimer. Angiostatic steroids shifted the relative size of the A and A' monomer pool in BAEC, and competition between the A and A' subunits in joining the B1B2 dimer produced AB1B2 and A'B1B2 in different ratios. This result suggests that subunit replacement is the general mechanism for producing laminin variants by various cells for tissue morphogenesis. When laminin subunits in BAEC were cross-linked with dithio-bis-succinimidylpropionate(DSP) and immunoprecipitated with anti-Iaminin antiserum, monomeric A,A',B1 and B2 monomers and the B1B2 dimer migrated as extremely large molecules in sodium dodecyl sulfate gel electrophoresis under nonreducing conditions. When the crosslinking disulfide bonds were cleaved under reducing conditions, they migrated as the usual subunits. This result suggests that molecular chaperones were involved in the process of the assembly and replacement of laminin subunits.