• Proceedings of the Korea Water Resources Association Conference
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• 2005.09a
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• pp.720-721
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• 2005

• Bulletin of the Korean Chemical Society
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• v.32 no.4
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• pp.1349-1352
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• 2011

• Journal of the Korean Society of Marine Environment & Safety
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• v.2 no.S1
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• pp.29-41
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• 1996

The present paper deals with the casualties of bulk carriers, many of which resulted in catastrophic and fatal consequencies - losses of ships and lives. In fact the fatality and the alarming statistics of bulk carrier casualty have ling been criticized since 1980's by several seafarers. In the paper, the features of hull structure and operation of bulk carrier are, firstly, examined and, then, casualties and major causes are speculated, Secondly, the issues of circumstances around shipping and naval architectural circles related to the casualties are raised and discussed. Finally, it highlights the need and the way for a higher safety standard for the shipping industy.

• Proceedings of the KSRS Conference
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• v.2
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• pp.533-533
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• 2006

• Proceedings of the Korean Geotechical Society Conference
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• 1993.10b
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• pp.51-76
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• 1993

More than sixty percentages of tunnels in the second phase of Seoul subway project have the ground coverages less than twenty meters. Majority of ground conditions encountered during turutel ling, therefore, are weathered rocks or weathered scils. Substantial lengths of tunnels are being constructed and designed running through the alluvial deposits as well. A comprehensive evaluation of current design and construction technology of Seoul subway tunnels is made with four categories such as site investigations, design concepts and methods, auxiliary measures and quality controls. Critical comments are given and some suggestions for the improvement of technology are presented.

• 제어로봇시스템학회:학술대회논문집
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• 1991.10a
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• pp.482-487
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• 1991

The scheduling algorithm based on the hierarchical scheduling policy is presented for the Job Shop type FMC control, and the simulation results using this hierarchical scheduling policy are with the results which are based on the heuristic scheduling policy. The results show that the hierarchical ling policy is more efficient than the heuristic scheduling policy in either case that there exist machine failures in the FMC or not.

• 제어로봇시스템학회:학술대회논문집
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• 1991.10a
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• pp.704-706
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• 1991

In CAD/CAM system, many efforts are made to automate the converting process from drawling information to manufacturing Information. The most difficult step In this procedure is utilizing 2 dimensional drawing information In order to formulate 3 dimensional w&ling information. This paper emphasizes to mWe automatically series of convertirg steps which provide 3 dimensional wire frame, surface and solid modeling using feature recognition rules. With the standardization of design process and the recognition rule as preceding steps, it shows a good application tool to interface the design and manufacturing procedures in PC-Level CAD/CAM system.

• Journal of applied mathematics & informatics
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• v.20 no.1_2
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• pp.433-443
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• 2006

In [1], they build two populations' cellular automata model with predation based on the Penna model. In this paper, uncertain aspects and problems of imprecise and vague data are considered in this model. A fuzzy cellular automata model containing movable wolves and sheep has been built. The results show that the fuzzy cellular automata can simulate the classical CA model and can deal with imprecise and vague data.

• Journal of applied mathematics & informatics
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• v.15 no.1_2
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• pp.323-331
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• 2004

A new topology in terms of order on fuzzy sets, revealing better the relationship between smooth topology and Chang's fuzzy topology, is presented in the paper. Some basic properties are discussed.

• Proceedings of the Optical Society of Korea Conference
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• 2007.07a
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• pp.35-36
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• 2007

We report a probe using a single double clad fiber (DCF) for fluorescence spectroscopy. Bidirectional separate transmission for excitation and fluorescence light in a single fiber was implemented. A DCF coupler made by side-polished method could extract none but the collected fluorescence signals propagating in inner cladding mode, thereby diminishing the interference of silica background generated by the excitation in core mode. The experimental results show that the fluorescence spectra of biological tissues obtained using the DCF probes have much less silica background than using a standard multiple-mode fiber.