• Journal of the Korean Professional Engineers Association
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• v.42 no.3
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• pp.27-31
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• 2009

Recent desalination plant system are being operated by applying one of the technologies as like MSF, MED and, or RO. The production cost of pure water from sea water by the desalination plant was U$9/m$^3$ in 1960, but now has been reduced to U$1/m$^3$ at present. The Power and Desalination Plant Project in Al Cobar of Saudi Arabia gave good chance to us export the similar plant systems actively to the world market. 1Hidd IWPP Project in Bahrain, Taweelah B Extension Project in Abu Dhabi of UAE and Ras Laffan B IWPP of Qatar are the recent large scale desalination projects under construction.

• Journal of the Korean Professional Engineers Association
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• v.41 no.6
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• pp.45-48
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• 2008

Exam administration agreement was signed by the Korean Professional Engineers Association (KPEA) and the National Council of Examiners for Engineering and Surveying (NCEES) at the 2nd National Convention of Professional Engineers on 6 September 2008. Korean engineers can take U.S. Professional Engineer examination under proctor of KPEA in Korea from next April. It helps to broaden for Korean young engineers to have a chance to work and to be recognized as a professional engineer in the U.S. This is a brief introduction of U.S. Professional Engineer system and examination.

• Proceedings of the Korean Society for Quality Management Conference
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• 2009.10a
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• pp.291-296
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• 2009

This study is to find the changing need of Mobile internet users and to setup the full browsing service measure, while mobile internet service is greatly developing. Main attributes of mobile internet service quality and user needs will be defined. So here will be a chance of improving the efficiency of mobile service quality.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1996.11a
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• pp.58-62
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• 1996

To check the variability of the effective diffusion coefficient in the unsaturated porous soil media. a Monte Carlo simulation was done for the equation suggested by Millington and Quirk(1961). The results shows that the probability density function of D$_{c}$/D$_{o}$ is positively skewed. It means the chance of having less effective diffusion coefficient values in the soil media than mean value is high. Also, the distribution types of D$_{c}$/D$_{o}$ are about same regardless of assumed distribution types of input parameters.ers.ers.

• Journal of Korean Society for Quality Management
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• v.29 no.1
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• pp.41-46
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• 2001

The problem of trend change in the failure rate is great interest in the reliability and survival analysis. In this paper we develop a test statistic for testing whether or not the failure rate changes its trend based on a complete sample. Monte Carlo simulations are conducted to investigate the speed of convergence of the proposed test statistic.

• Proceedings of the KIEE Conference
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• 1988.07a
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• pp.863-865
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• 1988

This paper presents a optimal Var allocation algorithm for minimizing transmission line losses and improving voltage profile in a given system. In this paper, nodal input data is considered as Gaussian distribution with their mean value and their variance. A Stocastic Linear programming technique based on chance constrained method is applied, to solve the var allocation problem with probabilistic constraint. The test result in 6-Bus Model system showes that the voltage distribution of load buses is improved and the power loss is more reduced than before var allocation.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.17 no.30
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• pp.35-41
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• 1994

Improve of productivity is a key for the development of a company, which can be pursued in the apect of material factor and personal factor. And the motives of worker for their job is more influenced by the chance of incentive compensation or self-development than by participation in management and safety of their post ect. Contingency theory is one of the theories that cope with this study Therfore, this study describes incentive compensation for satisfying worker desire related company's productivity, and be presented to the aspect of contingency accounting.

• Proceedings of the IEEK Conference
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• 2007.07a
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• pp.33-34
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• 2007

LBS has many issues of wireless sensor networks and mobile communication parts. Location tracking or location sensing will be the opening of ubiquitous society's a big challenge and the beginning of infinite ubiquitous society's a chance. The purpose of this paper is study of sensing rate per reader antenna's placement and tag location and placement using RFID as location reference point with many advantages for location detection.

• The Mathematical Education
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• v.42 no.3
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• pp.337-352
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• 2003

In this paper, we have studied the ways to enhance students' interest in infant math education. Firstly, we explain to the students the relation between the infant math skills and the college math contents. Next, the students practiced the subject about the infant education and the infant math education in real environment. Finally, the results of the practice are analyzed. From this study, we could find that the students got good experiences in infant math education activities and had the chance to change their mind in affirmative way for the infant math education and mathematics itself through performing given projects and investigations.

• IE interfaces
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• v.8 no.2
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• pp.185-197
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• 1995

Nowadays, various sides such as political, economical, technical and social sides of the companies' environment are changed rapidly. Such changes could provide a risk on one hand and a good chance on the other hand to the companies. Only one that has quick self-adaption can survive such kinds of challenges. Thus, from now on, profitable survival of a company depends on how fast they can adapt for the changes. Therefore it is introduced here the production method of a new concept for solving many problems which exist in the present production and manufacture.