• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년 춘계학술발표대회 논문집
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• pp.211-216
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• 2009

Bidding systems in the domestic public construction work have been amended many times since the lowest-bidding system was implemented in 1951. However, this hasn't had much success. Competition in technical development among companies has declined as the contracts for buildings are given to company which submits the lowest price without considering traits of projects. In addition, as the construction market turns to the limitless competition system due to FTA(Free Trade Agreement), advanced techniques are needed to promote the national competitive power. Considering the needs of the times, Korean government announced that "Best Value Contract (Design-Bid-Build)" and "Bridging Contracts (Design-Build)" are included to 4 existing bidding systems in October 2007. Thus this study aims to suggest devised the evaluation criteria including major items for evaluating bidders, in order to establish and revitalize the best-value bid system successfully.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제23권4호
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• pp.85-92
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• 2017

Purpose: In recent years, since 2000 many hospitals have established a master plan. However, there are some hospitals proceeding in different way from the master plan while the process of execution plan. This is because the study of master plan has been incomplete yet and there is no feedback on the master plan. Therefore, the purpose of this study is to find the reasons why differences are occurred. Methods: Comparison analysis of five hospitals which have established master plans and constructed with execution plans and Questionnaire to an architect of execution plan have been conducted. Results: This study has found three points. The first one is the change in scope of business and the change of administrator. The second one is that administrator and staff of hospital have more demands for improvement in functional area rather than public area, like lobby. The last one is to check a possibility of the solution by architectural analysis. Implications: It is necessary to determine the cause of changes from master plan and execution plan, in order to reduce the change in advance.

• 한국건설관리학회논문집
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• 제11권2호
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• pp.124-136
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• 2010

2000년 이후 국제적 건설시장의 이례적인 침체기가 지속됨에 따라 글로벌 무한경쟁체제 속에 국가경쟁력을 확보하기 위해서는 독보적인 기술력 보유와 더불어 선진화된 건설관리기법의 도입이 절실하게 요구되는 시점이다. 반면 국내 공공공사 입 낙찰제도는 1951년 최저가낙찰제 도입을 시작으로 그 동안 제도 개선이란 명분아래 수차례의 개정을 거듭해 왔지만 그때마다 정책적 이슈와 기대감에 빗대어 괄목할만한 성과를 가져다주지 못했음이 현실이다. 본 연구에서는 2007년 10월 도입이 결정된 최고가치 낙찰제도의 성공적인 국내정착 및 시행의 활성화를 위해 유럽, 미국, 일본 등 선진국의 성공사례를 분석하여 국내실정에 적합한 입찰자 평가체계를 구축하였고 실제 평가에서 활용이 용이한 평가 Tool을 고안하여 제시하였다. 본 연구는 선진국의 동일제도와 국내 유사제도 분석을 토대로 평가요소를 정립하였기에 제시되는 결과물들이 다소 일반적인 건설공사에 국한되는 한계점을 가지며 향후 본 연구에서 보다 발전하여 해당 사업유형에 적합한 특성화된 평가기준의 정립이 필요할 것으로 사료된다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2009년도 춘계 학술대회 제21권1호
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• pp.463-464
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• 2009

본 연구에서는 전단 및 휨파괴형 부재가 혼합된 저층 철근콘크리트 거물의 내진성능을 간편하면서도 효율적으로 평가가 가능한 간이 내진성능 평가법을 제안함과 동시에 단시간 내에 약산적으로 내진성능이 우수한 건물을 우선적으로 선별이 가능하도록 피해도 판정식과 내진성능 평가식을 제안하여 정략적으로 평가가 가능한 내진성능 평가표를 개발하였다. 상기 평가법을 이용하면, 내진성능 평가점수와 그에 대응하는 지진손상도가 추정가능하여 간편 효율적으로 내진성능을 평가할 수 있다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1999년도 봄 학술발표회 논문집
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• pp.233-240
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• 1999

Locally PDA has been utilized mainly as an alternative way of preforming pile loading tests. More than 30 units of PDA's are believed to be operating in Korea. It is true that PDA can provide useful information regarding bearing capacity, integrity, hammer performance, time effect, etc. However it is also true that inappropriate execution of PDA could result in harmful effects for the safety of the superstructure or causing delay in the construction process. In this paper several cases of inappropriate application of PDA are introduced. Most of the problems seemed to be caused by unqualified personnel who carry out testing and analysis. From the evaluation of the cases a proposal has been made for the proper application of PDA.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 학술대회 논문집 정보 및 제어부문
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• pp.150-152
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• 2004

Conventional CDDA (Compact Disc Digital Audio) system has limitations come from sampling frequency and quantization bit, 44.1kHz and 16 bit respectively. So, new medium is developed for high-resolution audio recording, like as DVD-audio etc. But CDDA is a widely used medium for high fidelity audio yet, because new medium has complexity and difficulty in manufacturing system. In this paper, we design a new encoding system for high-resolution audio signal. The system is backward compatible with conventional CDDA. By evaluation for encoding and decoding process, we describe practicability of our proposal system.

• 자연과학논문집
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• 제16권1호
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• pp.55-75
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• 2005

This proposal is to present a campus landscape plan for PaiChai University. The site is located in 439-6 Doma-dong, Seo-gu, Taejon City and has an area of $208,499m^2$. The landscape plan covers the following: site inventory and analysis; integration of design program and site analysis; evaluation of design concept; schematic design including circulation form and spatial form; and design development including subarea design. In the design process, the author focused on the integration and interpretation of site conditions as related to the university buildings. He also collectively analyzed and considered the physical development of the outdoor spaces of Paichai University. The following are some of the major areas in the design of the outdoor spaces of Paichai University: 1) a main entrance space as a symbolic square, 2) Paichai central street, 3) a campus core as a greenish square, and 4) a 'Jajuro' plaza as Paichai 'Han' square. The outdoor spaces of Paichai university are created as a new type of campus realm with function, campus quality, original identity, symbolic meaning and images and beauty.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제1권1호
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• pp.7-12
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• 1997

The curriculum differentiation is supposed to maximize individual strength and possibilities of the students, and to maximize educational efficiency by differentiating the instructions according to students' abilities, aptitudes, needs and interests. The Ministry of Education has suggested a stepwise model for school mathematics. This model is named "Stepwise Curriculum Differentiation"(段階別 敎育課程 差別化). In this paper, we would like to make a specific proposal for the 7th curriculum. Our proposal reflects fully the guidelines of the Ministry of Education. It is also based on the national curriculum history up to the present time. It could be used as a reference for the continuing work of curriculum reformation. We suggest dividing the contents of mathematics for 1-10th graders into about 15 steps, to use the step-based textbooks instead of the grade-based ones, and to prepare evaluation standards for each step. We also suggest that the classes for grades 11-12 be organized according to their optional courses and/or their steps.

• 한국컴퓨터정보학회논문지
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• 제23권4호
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• pp.1-8
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• 2018

In this paper, we propose an adaptive partition cache replacement policy and evaluate the performance of our scheme using various monitoring ratios to help lifetime extension of non-volatile main memory systems without performance degradation. The proposal combines conventional LRU (Least Recently Used) replacement policy and Early Eviction Zone (E2Z), which considers a dirty bit as well as LRU bits to select a candidate block. In particular, this paper shows the performance of non-volatile memory using various monitoring ratios and determines optimized monitoring ratio and partition size of E2Z for reducing the number of writebacks using cache hit counter logic and hit predictor. In the experiment evaluation, we showed that 1:128 combination provided the best results of writebacks and runtime, in terms of performance and complexity trade-off relation, and our proposal yielded up to 42% reduction of writebacks, compared with others.

• Steel and Composite Structures
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• 제11권3호
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• pp.183-205
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• 2011

This paper presents the results of an investigation into the post-buckling behaviour and ultimate strength of imperfect corroded steel plates used in ship and other marine-related structures. A series of elastic-plastic large deflection finite element analyses is performed on randomly corroded steel plates. The effects of general corrosion on both sides of the plates are introduced into the finite element models using a random thickness surface model. The effects on plate compressive strength as a result of parametric variation of the corroded surface geometry are evaluated. A proposal on the effective thickness is concluded in order to estimate the ultimate strength and explore the post-buckling behaviour of randomly corroded steel plates under uniaxial compression.