• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2003.04a
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• pp.248-254
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• 2003

According to the analysis of the patient transport in the fire disaster occuring at Taegu Subway Jungangro Station February 18th, 2003, authors concluded as follows. Patients were transported mainly to medical institutes which were larger and that had shorter distance. Because of non-emergenct patient's transport to larger and nearer institutes, some critical patients should be transported to more distant institutes. Dead patients before arrival were transported relatively evenly. An adequate transport according to adequate triage should be performed in the future. Early mitigation and response, correlation with the method of transport, regional guide line of disaster transport and correlation between disaster information and emergency medical information should be corrected and need research in the future.

• Proceedings of the Korean Vacuum Society Conference
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• 2011.08a
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• pp.123-123
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• 2011

알루미늄은 경량 금속으로 부식 저항력이 높아 철을 부식으로부터 보호하기 위한 표면처리 소재로 사용되고 있다. 철의 부식을 방지하기 위해서 알루미늄을 코팅하는 경우, 코팅 방법은 용융도금법이 주로 사용되고 있으며, 알루미늄을 빛의 반사막으로 활용하는 경우 진공 중에서 물리기상증착(physical vapor deposition; PVD)법을 사용하기도 한다. 알루미늄 박막을 물리기상 증착으로 코팅하면 박막성장 초기에 핵(nucleus)을 형성하고, 형성된 핵을 중심으로 주상정(column)으로 박막이 성장하는 것이 일반적이다. 알루미늄 박막의 주상정과 주상정 사이에 공극(pore)이 존재하기 때문에 알루미늄 박막을 부식방지 막으로 이용하기 위해서는 두께를 증가시켜야 한다. 본 연구에서는 스퍼터링(unbalanced magnetron sputtering)을 이용하여 치밀한 조직을 갖는 알루미늄 박막을 코팅할 수 있는 공정변수를 도출하고, 치밀한 알루미늄 조직이 철의 부식에 미치는 영향을 평가하였다. 기판은 냉연강판(cold rolled steel sheet)이 사용되었으며, 알루미늄 타겟의 크기는 직경 4 inch이었다. 알루미늄 박막의 미세조직과 밀도에 영향을 주는 공정변수를 확인하기 위해서 스퍼터링 파워, 공정 압력, 외부 자기장 세기 등의 조건을 변화시켜 코팅을 실시하였다. 알루미늄 박막의 밀도 변화에 가장 큰 영향을 준 공정변수는 외부 자기장의 세기와 방향이었다. 알루미늄 박막이 약 3 ${\mu}m$의 두께로 코팅된 냉연강판을 염수분무시험(salt spray test, 5% NaCl)으로 부식특성을 평가한 결과, 시험을 시작한 후 120시간 후에도 적청이 발생하지 않았다. 이러한 결과는 기존의 동일한 두께를 갖는 알루미늄이 코팅된 강판의 내부식 특성의 2배의 성능을 보여준다.

• Journal of The Korean Society of Agricultural Engineers
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• v.50 no.6
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• pp.3-12
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• 2008

It is important to estimate accurate effective rainfall to analyse flood flow and long-term runoff for the rational planning, design, and management of water resource. The initial abstraction is also important to estimate effective rainfall. The Soil Conservation Service (SCS) has developed a procedure and it has been most commonly applied to estimate effective rainfall. But the SCS method still has weak points, because of unnatural assumptions such as antecedent moisture conditions and initial abstraction. The coefficient of initial abstraction(K) is depending on the soil moisture condition and antecedent rainfall. The maximum storage capacity of Umax which is calibrated by stream flow data in the proposed watershed was derived from the DAWAST(DAily WAtershed STreamflow) model. The values of K obtained from 69 storm events at the five watersheds are ranging from 0.133 to 0.365 and its mean value is 0.207. Effective rainfall could be estimated more reasonably by introducing new concept of initial abstraction. The equation of $K=0.076Sa^{0.255}$ was recommended instead of 0.2 and it could be applicable to the small-medium rural watersheds.

• Archives of design research
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• v.14 no.3
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• pp.155-164
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• 2001

Under the ambiguous situation that Id character design aim is not defined, this study would help designers with 1. overcoming the limitation of character form generation ability by establishing visual application system, 2. accepting users'opinions by generating character images dynamically, analysing and giving information on the preferred ones on the web on real time, 3. identifying tendency of preference so that they can generate preferred colors and images in future by updating image combination and dropping low-preferred ones. this system would play a role as an idea or character form generation application in the 3d character design development process

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.37 no.4
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• pp.308-312
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• 2001

This study was carried out to develop a basic form of planning hull type fishing boat. G/T 10ton class is selected as object hull form, and hull form is designed in Chosun University. A series of test results of LCG variations for S different LCG points are presented in this paper. The test was performed in Davidson Laboratory, and the scope of tests include resistance, trim and sinkage.

• Journal of KIBIM
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• v.1 no.1
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• pp.18-25
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• 2011

Construction cost estimation in the early phase provides the opportunity to make reasonable decisions related to the project. For estimating this cost, various methods have been developed. But several problems have been recognized like accuracy, relation beteewn design and cost etc. In this study, we developed the method of cost estimating for building parts. The modified method has defferent ratio of space functions to calculate cost more correctly. Also historical cost data is used in this modified method for architects to estimate cost conveniently. By this modified method, we expects architects should easily design buildings based on cost.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.65-72
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• 2001

With the recent rising project complexities and competitive environments in the construction projects, a risk management is recognized as more important management tool than the others. However, as most risk management techniques applied to the construction projects are centered around their initial phases and risk analyses, they are not developed into general project management technique such as time management, cost management and quality management, etc., that are usually applied in the process of construction. Thus, this paper proposes a response process to construction project risks based on the risk threshold and its calculation methodology applying a concept of VaR to establish risk management as general management technique in the construction projects.

• Geotechnical Engineering
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• v.12 no.1
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• pp.87-110
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• 1996

To simulate the three4imensional effect occurring near the tunnel face in a two -dimensional model, empirical load -dirtribution ratio concept is frequently used in tunnel design. In this paper, three -dimensional analysis is performed and its results are compared with those of two dimensional analysis'to investigate the applicability of the loadiistribution ratio concept. Especially, stress concentration near the tunnel face is investigated in depth. A parametric study is performed to investigate the effect of each factor on the load distribution ratio. The factors considered here include unsupported span length, initial stress, rock quality, tunnel size and the depth of tunnel location Moreover, the load -distribution ratios for the typical tunnel sections in Seoul Subway to be used in the tunnel design are suggested.

• The Bulletin of The Korean Astronomical Society
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• v.36 no.2
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• pp.132.1-132.1
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• 2011

2.1m Otto Struve 망원경은 미국 McDonald 천문대에 있는 광학망원경으로, 초기우주천체 연구단은 현재 카세그레인 초점에 CQUEAN(Camera for QUasars in EArly uNiverse) 시스템을 부착하여 장기 관측 과제를 수행 중이다. 향후 주 초점을 이용한 관측에 대비하여 본 연구에서는 2.1m Otto Struve 망원경의 파인더에 FLI 4K CCD를 부착하여 자동조준 시스템 테스트를 수행하였다. 파인더 망원경의 제원은 구경 254mm, 초점거리 3038mm이며, FLI 4K CCD의 제원은 해상도 $4096{\times}4096$ 화소, 화소 크기 $9{\mu}m{\times}9{\mu}m$로서, 파인더 망원경 초점면에서 픽셀스케일 0.61"/pixel, 시야 $41.6'{\times}41.6'$이다. 자동조준 소프트웨어는 McDonald 천문대의 agdr-1.14를 사용하였다. 자동조준 카메라(4K CCD)의 영상을 통해 파인더 망원경에서의 시야와 한계등급을 구하였다. 여러 방향으로 망원경을 조준하여 2.1m 망원경에 부착된 CQUEAN과 파인더 망원경에 부착된 4K CCD 각각에서 영상을 얻고, 이들의 중심좌표를 비교함으로써 중력에 의한 망원경의 휨 효과를 조사하였다. 더하여 자동조준 설정을 바꿔가며 CQUEAN으로 NGC 6633의 장기 노출 영상을 얻고, 이들 영상에서 별 모양 특성을 분석하여 각각의 조건에서 자동조준 시스템의 성능을 조사하였다. 이상의 연구결과를 토대로 2.1m Otto Struve 망원경의 주 초점 관측 시 파인더 망원경을 이용한 자동조준장치 시스템 활용에 대해 제언하고자 한다.

• KIEAE Journal
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• v.8 no.1
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• pp.3-10
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• 2008

Eco-village adopted its basis on continual notion as one of the alternative dwelling models in the dwelling sector and it suggests a dwelling pattern of modern society. Ansolgi village was organized in 2000 as an intended Eco-village for the first time in Korea and after 8 years, the village seems different to that of the earlier period. The cause of the difference can be originated from changes of planning strategies and notion of life. The village is different from its original design due to lack of space resorted from installation of many facility and overall layout of the village. The different look of the village can be categorized in 4 types; village layout, community facility, Eco-based facility and hydro circulation. Therefore, the purpose of this paper is to suggest actual data about Eco-village establishment plan by performing a comparison analysis on the current status and the initial design on the basis of the intended Ansolgi village, the village that had been organized 8 years ago.