• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.650-658
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• 2013

In modern society, we live in the important age which should reflect needs of residents enough with the economic growth. Desire in the public sector means the basic requirements which are necessary for contemporary men who live in social life and is very important even at the social welfare policy level. Each local government is recently increasing convenience of residents by installing the facilities about public design and is politically promoting expansion of public services to satisfy their public desire. This public design should be installed to make reasonable plans and maintenance be smoothly done. This paper tries to study the present condition and the precedent studies targeting public interest facilities which will be installed in neighborhood parks of urban areas, grasp design problems of public facilities which will be installed in neighborhood space by clarifying the concept of design, and apply them by designing them newly. It tries to examine reasonable maintenance direction related to next development of public design by suggesting design direction for this practical development and module assembly typed design that storage, assembly, and management of public facilities are convenient and suggest cases of design development which can reflect them in public design development policies.

• Journal of The Korean Society of Agricultural Engineers
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• v.59 no.4
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• pp.17-26
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• 2017

In this study, EPANET model which is using on the pipe network analysis was applied to Haenam irrigation district has provided irrigation water by pipeline system about 1,125ha and then have built pipe network to study area and supply performance evaluation of existing structure was analyzed by SPA (Single Period Analysis) in EPANET. As model results of simulation average ratio of maximum supply quantity/irrigation water requirements(base demand) was analyzed by 2.63. It means also that was analyzed as being capable of ensuring the water supply capacity. It was provided the necessary information for the maintenance facility through analyzed hydraulic behaviors in the pipeline inside such as flow velocities, pressures and hydraulic grade lines. It was satisfied with the allowable design criteria that was compared analyzed results with presented allowable design standards at agricultural production infra improvement project planning and design (Pipeline design standard). In order to analyze efficiency promotions of irrigation water, using Extended Period Simulation it was compared supply quantity with irrigation water requirements while pumps set operating pattern in 24 hours, then efficiency promotions of irrigation water was determined through analyzed oversupply water quantity and occurrence time by branch lines. According to results for oversupply quantity in Haenam district by time and end of branch lines efficiency promotions of irrigation water was suggested from 0.33 % to 37.59 %. To draw reasonable operating rules for water use and through this research, it is expected to be helpful for efficient water use and operational management of agricultural pipeline system to the current agricultural irrigation.

• Journal of the Korea Institute of Building Construction
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• v.13 no.6
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• pp.619-626
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• 2013

Many pictures are taken at a construction site, but the information of the pictures is not managed in an efficient and systematic manner. For this reason, when a construction worker has scant field experience or knowledge, it is hard to communicate with others efficiently. Therefore, the information of the pictures taken is not fully utilized in any deliberation or conflict among interested parties, facilities maintenance, and construction of another structure, although they were taken for those purposes. This study discusses the need for combining vector-photos with image and 5W and 1H information, and develops a prototype module for creating vector-photos and saving them in a server. The vector-photos taken can be saved to a server in real time, and efficiently managed by a DB system. If a system to link the vector-photos with a BIM model is developed in the future, it is expected that the vector information in the picture can be connected with the property information of an object. As a result, the vector-photos can be utilized in more diverse ways.

• Journal of Korean Society of societal Security
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• v.2 no.4
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• pp.67-73
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• 2009

Civil infrastructure is the basis facility which builds up the base of national economy operation. Consequently unexpected sudden abnormal condition of civil infrastructure causes private and national property loss and moreover can spread social issue. Therefore, continuous maintenance and safety management for the civil infrastructures should be handled with great weight. Monitoring system for managing bridge maintenance was introduced first in the early of 1990s and has been developed up to real time measurement and analysis. Thesedays another system using fiber optic sensors is being developed. This paper presents the cost analysis of bridge monitoring system with fiber optic sensors which is gathering attention. Various cases were considered and the results were compared with that of monitoring system with electronic resistant type sensors widely used. As a results, fiber optic sensor system has good advantages in various cases, and a1so cost effectiveness compared to conventional sensor system.

• Korean Journal of Construction Engineering and Management
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• v.12 no.4
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• pp.40-49
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• 2011

A number of BTL projects for educational facilities have been augmented because of the increase of newtown development and deflationary policy of class size for learning efficiency. As the operation and maintenance costs rapidly increase, the budget for operation and maintenance is expected to be short. Therefore the asset management maximizing asset value is required to clarify the budget plan and distribution and provide a qualitatively high service. The main objective of this research is to establish asset valuation process in educational facilities delivered by BTL project. In order to meet the research objective, the asset valuation process is established by literature reviews, expert advice, and lessons learned from the developed countries. The developed process includes depreciation by internal accounting law, the core element of valuation, and asset valuation process. The results of the research will be help to offer the qualitatively high service and explain the standard of budget plan. It will assist commencing the asset management system.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.40 no.7
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• pp.679-683
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• 2016

Boilers of large-sized coal-fired power plants are being operated under very poor conditions such as continuous operation or repeating of start-up and shutdown for a stable supply of electricity. Thus periodic inspection and maintenance are required to ensure reliability of operation. The loads of existing scaffolding systems for the maintenance of boilers are concentrated in the lower parts structurally, which may cause a serial collapse of the overall scaffolding system when there are problems in some members. Therefore, in this study, a safe furnace scaffolding system is developed by dispersing the loads in the upper part, as well as minimizing the hazards of serial collapsing. In addition, for cases where the direct installation of furnace scaffolding is challenging owing to the structure of the boiler tube, a lifting system for the installation of furnace scaffolding is developed so that furnace scaffolding can be supported to secure the integrity of the power generating facility.

• Journal of the Korea institute for structural maintenance and inspection
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• v.18 no.1
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• pp.68-74
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• 2014

Recently, concrete facility as advanced water treatment facilities is extending in the water treatment facilities according to raise awareness of pure drinking water and delicious water. For this reason, it is increased to the necessity need to make the standard and the development of waterproofing and anti-corrosion materials for concrete structures applied water treatment tank. So, related research has become active recently. However, as the limit of research focused on durability improvement of top coating material, it is insufficient to study on the adhesion strength between the concrete surface and primer. Therefore, there is to confirm the adhesion of between concrete surface and the three primers used as anti-corrosion waterproofing materials, and to investigate the properties of adhesion strength according to the condition such as dry condition, wet condition, and water pressure condition of the concrete surface in this study.

• Korean Journal of Childcare and Education
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• v.3 no.2
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• pp.108-122
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• 2007

The objective of this study was to examine factors that affect service linkage and Satisfaction of Comprehensive child care services through Community resources linkage. The subjects were 370 child care center workers providing child care services in Busan. The results showed that: First, in personal factors, maintenance of service interchange for maintenance of relationship with other facilities had significant effect on the satisfaction level, Second, in the case of organizational factors, closeness with linkage facility, sufficient business capital, positiveness for linkage, and preparedness of internal provisions for linkage had significant effect on the satisfaction level. Third, in the case of environmental factors, proximity with linkage agencies, level of environment fostering, and level of cooperation with linkage agencies had significant influence.

• Korean Journal of Environment and Ecology
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• v.21 no.1
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• pp.13-21
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• 2007

The purpose of this study was to evaluate visitor and expert responsiveness for trail facilities in the Huibangsa, Yeonwhabong route of, Sobaeksan National Park in order to provide basic information for effective trail building and maintenance. The questionnaire surveys with 125 samples in visitor and 12 experts as the special panel were conducted. Evaluation results indicate statistical difference between the two groups in responsiveness for 6 types of trail facilities. In addition, 2 types of facilities, such as stone paving and boardwalk, were evaluated as the effective trail facility types. Steel bridge and steel steps may require improvement of the design consideration for with taking advantage of natural landscape.

• Korean Journal of Construction Engineering and Management
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• v.10 no.5
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• pp.104-112
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• 2009

After the middle of 90's, the eco rivers maintenance enterprise was propelled about city rivers. The environmental function is more emphasized because of revising the rivers law enforced at 2008.4. Also, the field of application is being magnified. It is difficult to apply that the conceptual public work expense estimating model of the rivers which adjusts a focus at open channel rivers excepts the small-scale rivers maintenance public work. The research presents a eco rivers public work conceptual public work expense estimating model frame work. It suits the change of the rivers environmental renewal construction paradigm. It develops the conceptual public work expense estimating plan of the rivers at the planning phase using the collection and analysis of the data. As a result, riffle, spur dyke, stepping stones, fish way and etc are added. Consequently, it brings the hydrophilic function is considered seriously conceptual public work expense estimating model of the eco rivers.