• Special Issue of the Society of Naval Architects of Korea
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• 2008.09a
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• pp.133-135
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• 2008

For complying with the increasing number of ships construction, it's required that not only for minimizing the period of construction in Skid Berth also maximizing application proportion of Skid Barge, The full-ship load out construction method required indispensably.

• East Asian mathematical journal
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• v.32 no.2
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• pp.291-300
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• 2016

The integration of mathematics education is required Fundamentally discussion about the nature and purpose of mathematics education. After the theoretical discussion of that, Practical approach of that can be correctly realized. However, It is the impression that theoretical discussions and practical action about the current discourse about integration in mathematics education are the wrong order. To understand the practical action for the integrated approach in mathematics education, theoretical discussion of the integrated approach of mathematical education is properly required.

• 대한생식의학회:학술대회논문집
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• 2001.11a
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• pp.57-62
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• 2001

One of recent advances of mammalian fertilization is the understanding of the molecular basis of fertilization. Several proteins localized in sperm nucleus or on sperm surface are necessary for the fertilization process. Protamines, sperm nuclear proteins, are required for normal sperm function that leads to fertilization. Fertilin and cyritestin are sperm surface proteins and essential for sperm-egg binding. Fertilin is also required for sperm transport in the female reproductive tracts. Metalloproteses on sperm plasma membrane are found to play a role in sperm-egg fusion. The functional analysis of these proteins provides a new insight into the molecular mechanisms underlying mammalian fertilization and male fertility.

• Journal of the Speleological Society of Korea
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• no.92
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• pp.41-47
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• 2009

This study discussed revitalization of commercial caves. Transition of approach method about cave development is required. Each of the caves need differentiation strategy. In addition, the recognizing of the value of caves is required.

• Journal of the military operations research society of Korea
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• v.12 no.2
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• pp.22-36
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• 1986

The study is to design optimal aircraft allocation model for sufficing the required level of damage, minimizing attrition cost when the aircrafts attack the enemy's fixed target. When friendly aircraft attacks enemy target, the aircraft will suffer the loss due to the enemy's anti-aircraft weapons and aircraft. For this study, it is required that the probability of target damage by the type of aircraft, level of target damage and attrition cost are computed for the application of this model.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07a
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• pp.415-417
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• 2005

Core operations (e.9. TDMA scheduler, synchronized sleep period, data aggregation) of many proposed protocols for different layer of sensor network necessitate clock synchronization. Our Paper mingles the scheme of dynamic clustering and diffusion based asynchronous averaging algorithm for clock synchronization in sensor network. Our proposed algorithm takes the advantage of dynamic clustering and then applies asynchronous averaging algorithm for synchronization to reduce number of rounds and operations required for converging time which in turn save energy significantly than energy required in diffusion based asynchronous averaging algorithm.

• Proceedings of the KIEE Conference
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• 2002.11a
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• pp.91-93
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• 2002

Ti-Sn sol is fabricated using sol-gel method. In case the amount of water required hydrolysis smaller than that for stoichiometry, Ti sol forms clear sol which has normal chain structure. On the contrary, in case the amount of water required hydrolysis larger than that for stoichiometry, Ti sol forms suspended sol which has cluster structure. Viscosity of Ti-Sn sol decrease with increasing HCl additive. Gelation of Ti-Sn sol is delayed with increasing HCl and $Sn(OC_2H_5)_4$ additive.

• Journal of Korean Society for Quality Management
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• v.15 no.2
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• pp.74-81
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• 1987

The purpose of this paper is to find out the relative priority among the queueing products for next operation. Critical ratio scheduling is a technique for use in production scheduling to establish and maintain relative priority among the jobs. The relative priority is based on a ratio of when the completed job is required and how much time is required to complete it. A numerical example of "D" company is solved. Jobs are classified into 3 categories; the behind scheduling jobs, the on time jobs and the ahead scheduling jobs.

• Journal of Industrial Convergence
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• v.10 no.1
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• pp.13-26
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• 2012

The Purpose of this study was to review the theoretical background of burnout in child care teachers organization. Personal factors, Organizational factors, social factors and the factors affecting burnout I examined. The results of this study were as follows. First, Child care teachers need to be burnout to participate in Prevention programs. Second, child care teacher is required to ensure proper staffing, improved working environment through compliance with statutory working hours. Third, Various institutional arrangements required to control the variables affecting child care teachers. Fourth, Child care teacher's role to prevent excessive strategy is needed.

• Proceedings of the Korea Association of Crystal Growth Conference
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• 1996.06a
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• pp.88-138
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• 1996

Electronics grew up to the largest industry in the world supported by Si wafer. In near future, the Si wafer may use 300mm in diameter for economic requirement. This size wafer may use to produce large logic chip, 256Mbit DRAM, and other large complex and high density chip. Then, the quality including flatness and crustal characters may be required very high performance. And, their price should be reasonable and high quantity may be required. These requirements should be solve lot of hard problems of crystal growth, wafering mechanical processing and their cost problems. In this presentation, I may discuss following items.