• 한국수학교육학회지시리즈C:초등수학교육
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• 제17권2호
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• pp.127-157
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• 2014

본 연구에서는 예비 초등 교사의 도형 문제 해결에 있어 필요한 교수 역량을 다양한 문제 해결 능력, 핵심 요소를 추출하는 능력, 그리고 학생의 어려움을 예상하는 능력의 관점에서 그들의 현 실태 파악과 더불어, 교수 역량의 강화 방안으로 GSP 작도를 활용하였다. 그 결과 예비 초등 교사들이 문제 해결에서 오류를 보이기도 하고, 지식에 초점을 둔 핵심 요소를 추출하는 경향이 강하며, 학생들의 어려움을 특정한 한 가지에서 찾는다는 것을 알 수 있었다. 또한 GSP 작도를 통해서 여러 가지 다양한 성질을 부분적으로 탐구하는 것은 가능하나, 통합된 관점에서의 문제 분석 및 개념 간 연결에 어려움을 겪는 것을 발견했다. 더불어 GSP 작도를 통한 시각적 확인 및 탐구 이후, 문제 해결의 방법이 좀 더 다양해졌으며, 학생의 어려움을 예상하는 초점이 다른 방향으로 전환되었음을 확인할 수 있었다. 이러한 결과로부터 GSP 작도가 예비 초등 교사의 교수 역량 강화의 도구로 활용될 수 있도록 돕는 몇 가지 시사점을 추출할 수 있었다.

• International Journal of Computer Science & Network Security
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• 제21권1호
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• pp.49-54
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• 2021

Relative to the outer surface of the mastic coating, the reliability of the available waterproofing resource is determined by the ability to stabilize the structural characteristics in difficult climatic conditions. Organic components of mastic as a result of solar radiation, elevated temperatures and their alternating change, atmospheric oxidants, especially in industrial areas, have a tendency to self-polymerization and loss of low molecular weight components. This is the gradual loss of deformability and the transition to brittleness with its tendency to crack as the reasons for the gradual transition from normal to emergency operating condition.The presented mechanism of functioning of the coating surface indicates the expediency of increasing its components, able to stabilize the structure and prevent changes in deformability.Durability, hydrophobicity, water displacement, water absorption are accepted as estimating indicators. The main dependences of the influence of the lost additional components of mastic on the operational properties of the formed coating characterize the ability to provide successful resistance to environmental influences and longer stability. As a result, mastic acquires additional service life.

• 한국지구과학회지
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• 제29권6호
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• pp.487-494
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• 2008

본 연구의 목적은 7학년 "해수의 성분과 운동" 단원에서 MBL 실험 수업이 학생들의 과학탐구능력과 그래프 작성 및 해석능력에 미치는 효과를 알아본 연구로 그 결과는 다음과 같다. 첫째, 6차시에 걸쳐 MBL 수업을 실시하고 사후 t-검정을 통해 학생들의 과학탐구능력에 미치는 영향에 대해 분석하였다. 그 결과 실험집단과 통제집단 간 과학탐구 능력 결과에서 유의미한 차이가 나타나 MBL 수업이 학생들의 과학탐구능력 향상에 더 효과적임을 알 수 있었다. 둘째, 사후 t-검정을 통해 학생들의 그래프 작성 및 해석능력에 미치는 영향에 대해 분석하였다. 그 결과 실험집단과 통제집단 간에 그래프 작성능력에서는 유의미한 차이를 보이지 않았으나, 그래프 해석능력에서는 두 집단 간 유의미한 차이를 나타내고 있어 MBL을 활용한 수업이 학생들의 그래프 해석능력의 향상에 더 효과적임을 알 수 있었다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2002년도 학술논문발표회
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• pp.97-102
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• 2002

The ability to pass between bars is one of the most important performance of self-compacting concrete or high-flowability concrete since it determines the final filling capacity which influences the strength and durability of hardened concrete in structure. Therefore it has been evaluated by many researchers using different kinds of testing apparatuses. The assessments of passing ability, however, differ largely according to the style, the dimension and the criteria in apparatuses, and the value obtained from one apparatus cannot be converted those of the others. There needs a rheological approach to the better understanding of the passing behavior of fresh concrete between reinforcing bars, where the flow velocity of concrete becomes slow and the blockade sometimes occurs due to the interference between aggregates and reinforcing bars. Experimental works were conducted to clarity the effects of the clearance between reinforcing bars, the volume of aggregate and the rheological properties of matrix on the behavior from the rheological point view and showed the rational mix proportioning of concrete.

• 한국건축시공학회지
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• 제2권1호
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• pp.163-169
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• 2002

In this study, there are kind of property experiments like fluidity, compressive strength, bleeding measurement, concrete sink for CFT use high fluidity concrete. The property difference between before transmit and after transmit concrete in the mock up test with ready mixed concrete equipment is examined. The variable factors in mock up are diaphragm existence and nonexistence, diaphragm placing hole sizes. To investing the concrete Property under diaphragm, concrete packing ability, hydration heat, core specimen strength tests are performed.

• 경영과학
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• 제17권2호
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• pp.135-150
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• 2000

Korean construction companies are recently facing stiff competition in free market economy, and construction projects tend to be complex and large-scale. Such an environment demands that construction companies ensure specialized subcontractors. This paper suggested a subcontractor evaluation model for selection of competent subcontractors which are equipped with operational, technical and productive ability. For designing a subcontractor model, AHP method as a group decision-marking method is applied in assigning weighting indices of evaluation elements. To verify this method, actual data collected in one of construction companies are analysed statistically.

• 한국콘텐츠학회논문지
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• 제7권12호
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• pp.114-122
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• 2007

본 연구는 평생학습사회 지향의 한 방법으로 기업에서의 학습조직 구축 방안을 제시하는데 그 목적이 있다. 본 연구를 통해, 성공적인 학습조직을 위해 어떤 구성요소를 가져야 하며, 어떤 단계를 마련하여 학습조직을 구축해야 하는지 등에 관하여 논하였으며 이는 향후 학습조직을 도입하고 실행하려는 조직들에게 실질적인 도움을 주기 위함이다. 올바른 학습조직의 구축은 조직의 환경대응역량과 성공의 길로 안내할 뿐만 아니라 개인의 역량개발, 적응력 향상, 행동역량을 증대시킬 수 있고 나아가 국가 사회적으로는 평생학습사회를 구현하는 단초가 될 수 있다. 이러한 전 과정을 통해 학습조직 활동이 체계적으로 이루어질 수 있으며 나아가 전 사회적으로 평생학습사회를 구현하는 기초가 되리라 확신한다.

• 한국건축시공학회지
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• 제2권3호
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• pp.139-146
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• 2002

As the bentonite is main material to prevent from collapse of drilling hole at underground excavation works, it is increased using quantity on construction industry day by day. But, the discarded bentonite that is over using at underground excavation works is caused various environmental trouble as soil and water pollution est. This study aims to propose a foundamental report for pozzolan reaction of discarded Bentonite powder by heat-treatment and cooling as concrete mineral admixture. To find out pozzolan reaction ability of discarded Bentonite powder by indirect cooling & cooling using of water after heat-treatment, the experiments are excuted Phenolphtalein test, setting test, pH test and the analysis by X-ray diffractor. As a result of this study, discarded Bentonite powder can be utilized as concrete mineral admixture by heat-treatment and especially, pozzolan reaction ability of discarded Bentonite powder is superior to the situation of 50$0^{\circ}C$~$700^{\circ}C$, 60min.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.875-880
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• 2005

This paper represents a partial outcome of a doctoral research undertaken at the University of Tokyo, Japan. The doctoral research looked on the phenomenology of innovation and its implications for the construction industry in Japan. This paper focuses on the perception of innovation by major Japanese construction clients and major Japanese construction firms. Among construction researchers innovation is a popular topic and no conference will miss covering the issue. After a period of very critical judgment on the ability of the construction sector to innovate and partially even frustration on the inflexibility of the sector, a much more positive attitude was taken. At present, most construction researchers would agree that the construction sector clearly is very innovative. That stands in contrast with how construction practitioners perceive their own sector. This paper presents the results of and empirical research in how construction clients and contractors in Japan perceive the issue of innovation. In fact the perceptions differ largely and give interesting insights on particularities of the Japanese construction sector and on the mismatch of clients and contractors perceptions.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2012년도 학술발표회
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• pp.27-33
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• 2012

At present, the overall water resources monitoring ability in China is weak since there is an absence of a sound monitoring system and comprehensive monitoring information. In addition to the problem of weak management ability in monitoring, measurement and information, it can hardly meet the need of implementing the strictest management system of water resource and also restricts the practice of the system to some extent. The production states the necessity of further development of water resources monitoring ability and points out the concept of "One Country, One Account" for constructing water resources information. There is an analysis on the demand on further development of water resources monitoring ability and profound discussion about the strategies for supporting "three red-line" management.