• Journal of Korean Society of Industrial and Systems Engineering
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• v.24 no.66
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• pp.47-57
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• 2001

This thesis introduce the organization system and office regulation of standardization administrative organization for the change of times, also suggest improvement plan for its effective management. The main improvement plan refer to the standardization administrative organization\`s work, this thesis suggest, 1. Readjustment of national standardization system and effective reorganization for standards information organization. 2. For industrial standards system, the korea industrial standards should be maintained uniform system, So decentralized korea industrial standard at government ,must be unified and maintained to unique policy for its effective improvement. 3. To strengthen with international standards organization, a institutional device, budget funds, and expert should be backed up. 4. For training and education of expert, Refer to the performance of one\`s duty, the proper expert should be chosen and posted. Also, systematic training and education system for expert must be developed, So they can be on duty continuously, Finally, this thesis suggest that the necessity of systematic and unique policy must be established for high position at international area. Since the limitation of data, the future research will be performed for budget funds and personnel setup.

• Water Engineering Research
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• v.6 no.4
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• pp.161-168
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• 2005

With characteristics of river continuum, stream ecosystems have diverse components and environments from upstream channel to estuarine area. Therefore, the habitat requirements and composition of conservative object should be well understood before applying any improvement measure. In this paper, the causes of stream habitat changes were first illustrated with the categories and principles of habitat restoration methods. The structural restoration techniques of fish habitat improvement utilized by the authors or one three-year research project starting at 1990 were then presented. Through the introductions on the project background, planning guidelines, structure design, and ecological evaluation, this paper tried to provide some effective examples of stream restoration practices that ecological expert was invited for cooperation and advising.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 1998.10a
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• pp.500-507
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• 1998

The measures for water quality improvement have been planned to introduce for several reservoirs which were badly polluted among the sites included in the Network of Agricultural Water Quality Survey (NAWQS). Considering conditions of circumstances around reservoirs, self-purification systems such as natural ecosystem, oxidation ponds with plants, grassed waterways, weirs, and manmade plant-islands are taking into account enhancing to trap nutrients in waters running off from agricultural lands. The Pollutant Run off Ratios were analysed to predict the effects of water quality improvement for self-purification systems. The cost of water quality improvement was evaluated. The correlation equation between cost and irrigation area showing high correlation coefficient was derived.

• Journal of the Korean Institute of Rural Architecture
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• v.15 no.4
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• pp.79-86
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• 2013

Demand of new suburban residential development and a variety of new types for housing have intensified by urban Citizens overused of poor urban residential environment. Income growth and improvement of living standards for the quality of the living environment are increasing demands of creating a more comfortable living environment. Thus, according to changes in social conditions, the development of urban area while accommodating additional development pressure adequately, particularly residential development in order to promote the efficient development of suburban areas are planned for the rational development direction. This study suggests the following improvement measures by analyzing the characteristics of the Suburban Housing Complexes built recently. In order to create a more pleasant Suburban Housing Complexes First, the accessibility of the traffic conditions, education and public facilities is good Second, the construction plans reflected needs of the consumers should be made Third, necessary facilities for activation of the urban-rural exchanges must be equipped.

• Proceedings of the Korean Geotechical Society Conference
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• 2007.09a
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• pp.3-38
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• 2007

The depositional characteristics of Busan clay are initially described in this paper. The deposits of the Nakdong River estuary are composed of some different layers, which have been affected by marine transgression and regression. The upper clay layer is thick and soft. The lower clay layer and some depth of the upper clay layer have been leached by artesian pressure existing in an aquifer below. The clay shows unique physical and engineering characteristics due to leaching. Several large-scale reclamation projects have been performed in this delta area. The preloading method using long vertical drains has been applied for soft ground improvement. Experiences obtained from ground improvement are mentioned in connection with the depositional characteristics of the clay layers.

• Journal of the Korean housing association
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• v.6 no.2
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• pp.123-137
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• 1995

This paper presents the directions for the settling environment improvement of 244 Eups and Myeons in the Kyung buk province. Depending on their regional types. The analysis results are as follows : 1) According to the index of general estimation each regional group is classified into the developing country. suburban country. flatland country or mountain country. 2) The regional type is classified into densly-inhabitated district. less-dense district. non-developing district or perishing district. 3) The results of the dwelling environment estimation pointed out that social protection. living convenience. and neighborship are important factors for environmental improvement, depending on the regional type. From above, each region has different regional characteristics and environmental estimation structure. It is suggested to establish improvement directions. based on them.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.4 no.1
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• pp.90-97
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• 2001

For improvement of water quality, $20m^2$ of artificial floating plant islands planted with Iris pseudoacorus, were installed in small pond on March, 1999. Small pond has surface area $1,000m^2$ and mean depth 1.5 m. The density of plants was 16 per $m^2$ by using jute pot. Environmental parameters such as COD, SS, T-N, T-P and planktons were biweekly measured from 29 March to 28 September. Because of the small portion of floating island, the effect for water quality improvement was not sufficient. But considering the data of plant growth and nitrogen and phosphorus uptake capacity of plant, about 40% of coverage by artificial floating island was needed for elimination of whole nutrients from inflow.

• Journal of the Korean Geosynthetics Society
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• v.16 no.4
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• pp.103-111
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• 2017

Saudi Arabia coastal area is highly valuable construction as a flat area covered by sabkha deposit. However, sabkha deposit has some geotechnical problems because of high groundwater level, high salt contents in groundwater, loose density, and possibility of collapsible settlement due to presence of crystals vulnerable to moisture, and ground improvement is needed to improve the bearing capacity. In this study, the characteristics of the sabkha soils in the coastal area of Saudi Arabia were analyzed and the applicability of dynamic compaction method was evaluated. Parametric study was conducted to analyze the behavior of sabkha deposit during dynamic compaction. The appropriateness of the proposed analytical solutions to estimate the depth of improvement was evaluated, and the troubles and notes in applying dynamic compaction in sabkha deposit were discussed.

• 한국신재생에너지학회:학술대회논문집
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• 2007.06a
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• pp.305-308
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• 2007

The field of dye-sensitized solar cell (DSC) is being researched actively at present. Because DSC has several advantages to pass the limits of Si solar cells such as a low manufacturing expense, a simple manufacturing process and its transparency. A lot of researches are underway about materials and processes in the field of dye-sensitized solar cell but its structure has been fixed up as the sandwich structure that both edges are used as positive and negative terminals. But the structure as of present is a factor of decreasing efficiency because the more electrons are recombined the further distance from terminal, considering about the characteristic of dye-sensitized solar cell that electrons generated inside cell are moved by diffusion. In this study, we made experiment on expanding the terminal to shorten internal moving distance of electron and compared the results according to the variation of active area to find out the effect of this trial. As a result, we achieved about 15.5% improvement of maximum power and 0.5% improvement of efficiency from terminal-expanded dye-sensitized solar cell of $2cm^{2}$ active area and concluded that the increasing rate of efficiency is raised as the active area becomes wider.

• Journal of the Korean Institute of Rural Architecture
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• v.7 no.2
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• pp.9-20
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• 2005

The conventional markets in small towns have showed a different trend, compared with those of urban district. As the conventional markets, which are located in urban districts, are being depressed, those in small towns are being activated by each local government. The activation of conventional market is being recognized as an important means for developing communities, and the project for fostering conventional market is being competitively carried out by each local government. The active center of conventional market is constituted centering on the central area of the market. However, in case of the small towns' conventional markets, it is known that the market site, which is secured at market day, heavily influences on the central area. Thus, in order that the small towns' conventional markets may be activated, securing territories of conventional markets and market site should be considered. Altogether, in order to activate the conventional markets, some conclusions were derived as follows: Expanding market site through improving the usability of space by territories, Controlling peddlers by territories and balancing business items, Amplifying the convenient facilities for users, Securing and improving the central area, Standardizing the facilities that were installed by stores and peddlers.