• 한국건축시공학회지
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• 제15권6호
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• pp.631-639
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• 2015

유닛모듈러 공법에서는 정밀 제작된 유닛모듈과 시공정밀도가 낮은 기초부의 접합부에서 수평 정밀도 차이가 발생한다. 이러한 정밀도 차이로 인하여 상부 유닛모듈이 뒤틀리거나, 간격이 벌어지는 등 다양한 문제가 야기될 수 있다. 이러한 배경에서 본 연구는 Pre-Fab 독립기초의 높이조절이 가능한 공법을 개발하는 것을 목적으로 하였다. 이를 위하여 본 연구에서는 볼트와 너트를 이용한 높이조절 공법을 제안하고 시공 상세도와 시공순서를 제시하였다. 그리고 구조 시뮬레이션을 수행하여 구조적 안정성을 확인하였다. 향후 개발된 높이조절 공법의 mock-up 시험, 경제성 분석 등을 실시하여 시공성과 유용성을 검토할 예정이다.

• 대한안전경영과학회지
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• 제9권2호
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• pp.1-8
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• 2007

Safety check-up and individual education, safety status wishes to present included safety assessment table for safety management assessment system construction about unit work process in Study. Safety management assessment table gives each grades about worker of unit work process, safety check-up, education, management and identifies merits and demerits of unit work process, it is that propose safety management assessment system that can reduce accident occurrence possibility.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 추계 학술논문 발표대회
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• pp.141-142
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• 2017

New waterproofing technologies have emerged in the field of building waterproofing due to the recent diversification of the size and type of structures, the enhancement of required performance, and the diversification of new technologies (such as materials and methods)(Sheet waterproofing material, coating waterproofing material) is reduced, and composite waterproofing materials that utilize mutual benefits are widely used by compounding them (sheet+coating film, coating film+sheet). However, it is true that there is no evaluation method that can verify these composite waterproof materials, which is the most widely used at present, but the KS standard only specifies tests for individual materials However, there is a situation in which the countermeasures without a test method for composite waterproofing become sudden.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2003년도 학술대회지
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• pp.521-524
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• 2003

최근 현장에서는 공사관리의 효율화를 위한 여러 가지 공사관리 시스템을 적용하고 있으며, 이를 통하여 현장의 실적자료를 수집하고 있다. 하지만 이러한 노력에도 불구하고 실적자료의 바탕이 되는 현장 데이터는 객관적 수집 또는 기준에 의해서 이루어지는 것이 아니라 주관적 판단 또는 측정자별로 상이한 기준에 의해 이루어져 각 현장별로 큰 차이가 발생하고 있다. 이러한 문제를 해결하고자 최근 모바일 기술의 발전을 활용한 현장의 데이터 수집을 위한 여러 가지 방안이 연구되고 있으며, 데이터의 체계화에 대한 필요성이 제기되고 있다. 따라서 본 연구는 공종별 특성에 따른 진도 측정 단위 도출 방안을 제안하고, MS Access를 활용한 Prototype의 진도 측정단위 생성 시스템을 개발하였다. 마지막으로, 제안된 도출 방안과 시스템 및 체계는 측정된 데이터의 객관성 및 정확성을 높임으로서, 현장별로 표준화된 진도측정을 가능하게 할 것이다.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2009년도 하계학술발표대회 논문집
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• pp.1497-1502
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• 2009

The present study has been conducted economic analysis of heat storage type ground source heat pump system(HSGSHP) and normal ground source heat pump (GSHP) and central boiler system with individual air conditioning facility which are installed at the same building in the shared an apartment house. Cost items, such as initial construction cost, annual energy cost and maintenance cost of each system are considered to analyze life cycle cost (LCC) and simple payback period (SPP) with initial cost different are compared. The initial cost is a rule to the Government basic unit cost of production. LCC applied present value method is used to assess economical profit of both of them. Variables used to LCC analysis are prices escalation rate and interest rate mean values of during latest 10 years. The LCC result shows that HSGSHP (1,351,000,000won) is more profitable than central boiler system with individual air conditioning facility by 86.7% initial cost. And SPP appeared 8.0 year overcome the different initial cost by different annual energy cost.

• 한국차세대컴퓨팅학회논문지
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• 제14권5호
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• pp.7-18
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• 2018

최근 마이크로서비스를 기반으로 애플리케이션 개발을 지원하는 서버리스 컴퓨팅이 각광 받고 있다. 마이크로서비스란 독립적으로 동작 가능한 작은 규모의 서비스를 의미한다. 마이크로서비스 단위로 구성된 애플리케이션은 개별적인 업데이트와 쉽고 빠른 배포가 가능하다는 장점이 있다. 그리고 각 서비스마다 다양한 언어와 플랫폼 등을 지원할 수 있다는 장점이 있다. 따라서 많은 기업들이 모놀리식 구조에서 마이크로서비스 구조로 전환을 시도하고 있지만 마이크로서비스 구성에 대한 방법 및 기준과 이에 대한 연구가 부족한 실정이다. 본 논문에서는 모놀리식 애플리케이션의 UML 설계 자료를 분석하여 마이크로서비스 단위로 구성하는 방법을 제시한다. 구성된 마이크로서비스를 실제 서버리스 플랫폼 환경에서 구현함으로서 제시한 방법이 모놀리식 애플리케이션을 마이크로서비스 단위로 재구성할 수 있음을 보이며 기존 관련 연구와 비교 평가를 수행한 결과를 제시한다.

• 한국농공학회논문집
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• 제64권3호
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• pp.1-8
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• 2022

In this study, a farm map utilization strategy for sustainable agricultural environmental resource management was derived. In addition, it is intended to present an efficient method of providing farm map-related services. As a result of the demand survey, the additional information required for the farm map includes 29% of information on crops grown on farmland, 21% of management-related information such as the owner or business entity, 17% of topographical information including slope, 15% of agricultural water information, 17% of land status information, and the addition of functions. 2% was investigated. As a result of intensive interview survey, it was found that it can be used for information on crops cultivated by agricultural businesses, actual cultivated area by township, arable land consolidation division boundary, and management of agricultural promotion zones. The farm map can be used as basic data to efficiently manage agricultural environmental resources. Since the status of support for individual farms or lots, such as soil improvement agent support and organic fertilizer support, may belong to personal information, it can be processed and provided in units required by administration or policies, such as administrative boundaries, subwatersheds, and watersheds. It can serve as a basis for executing the direct payment currently supported only by individual farms, even in a community unit that manages environmental direct payments.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2002년도 추계학술대회 논문집(I)
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• pp.131-136
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• 2002

Performance test is carried out in accordance with "performance test standard for Electrical Multiple Unit", noticed by Ministry of Construction ＆ Transportation in 2000. The object of this standard is to ensure that vehicle is tested after completion and before entry into service. Performance test is classified by type test to be carried out for the first car and its components in order to verify their performance and by routine test to be carried out on the whole quantity in order to prove the performance of individual items. Scope of the test is divided by components, completed car, preliminary adjustment test and running test on main line. The paper introduces a testing procedure and an execution method of the performance test.

• International Journal of Contents
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• 제4권2호
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• pp.19-23
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• 2008

This paper presents a novel method to construct a personalized e-Learning system based on dynamic estimations of item parameters and learners' abilities, where the learning content objects are of the same intrinsic quality or homogeneously distributed and the estimations are carried out using IRT(Item Response Theory). The system dynamically connects the test and the corresponding learning procedures. Test results are directly applied to estimate examinee's ability and are used to modify the item parameters and the difficulties of learning content objects during the learning procedure is being operated. We define the learning unit 'Node' as an amount of learning objects operated so that new parameters can be re-estimated. There are various content objects in a Node and the parameters estimated at the end of current Node are directly applied to the next Node. We offer the most appropriate learning Node for a person's ability throughout the estimation processes of IRT. As a result, this scheme improves learning efficiency in web-base e-Learning environments offering the most appropriate learning objects and items to the individual students according to their estimated abilities. This scheme can be applied to any e-Learning subject having homogeneous learning objects and unidimensional test items. In order to construct the system, we present an operation scenario using the proposed system architecture with the essential databases and agents.

• 한국BIM학회 논문집
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• 제12권4호
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• pp.19-31
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• 2022

With the development of 3D-based CAD (Computer Aided Design), attempts at freeform building design have expanded to small and medium-sized buildings in Korea. However, a standardized system for continuous utilization of shape data and BIM conversion process implemented with 3D-based NURBS is still immature. Without accurate review and management throughout the Freeform building project, interference between members occurs and the cost of the project increases. This is very detrimental to the project. To solve this problem, we proposed a continuous utilization process of 3D shape information based on BIM parameters. Our process includes algorithms such as Auto Split, Panel Optimization, Excel extraction based on shape information, BIM modeling through Adaptive Component, and BIM model utilization method using ID Code. The optimal cutting reference point was calculated and the optimal material specification was derived using the Panel Optimization algorithm. With the Adaptive Component design methodology, a BIM model conforming to the standard cross-section details and specifications was uniformly established. The automatic BIM conversion algorithm of shape data through Excel extraction created a BIM model without omission of data based on the optimized panel cutting reference point and cutting line. Finally, we analyzed how to use the BIM model built for automatic conversion. As a result of the analysis, in addition to the BIM utilization plan in the general construction stage such as visualization, interference review, quantity calculation, and construction simulation, an individual management plan for the unit panel was derived through ID data input. This study suggested an improvement process by linking the existing research on atypical panel optimization and the study of parameter-based BIM information management method. And it showed that it can solve the problems of existing Freeform building project.