• Journal of the Korean Society of Systems Engineering
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• v.12 no.2
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• pp.69-80
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• 2016

The purpose of this study is to establish a component reutilization system in Nuclear Power Plant (NPP) by Object-Oriented Systems Engineering Method (OOSEM). Unified Modeling Language (UML) is mainly used for OOSEM. Operational Concept (OpsCon), Use cases, Structure Diagrams, and Behavior Diagrams are developed to analyze stakeholders needs, system requirements, logical architecture, and physical architecture. Based on the current decommissioning and purchasing system of the component, some activities from their systems were excepted and additional new activities were developed for a component reutilization system.

• Journal of the Korean Institute of Educational Facilities
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• v.2 no.3
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• pp.19-30
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• 1995

The primary purpose of this study is to suggest the policy for the effective utilization of empty classrooms in elementary school. The empty classroom in this study means the classroom that is not used now since the number of students decreases, but can be usable for other needs in future. The following results are obtained through this survey; 1) about forty percent of classrooms are empty classrooms, 2) the ratio of empty classrooms is higher in urban area than rural area, 3) the smaller the size of classroom is, the higher the ratio is, and 4) 56.5% of the schools have one to three empty classrooms and 30.0% have four to six empty classrooms. In conclusion it is suggested that 1) the reutilization plan of empty classrooms be established according to particular situation of each school, 2) the government develop the guidelines for reutilization and administrative procedures for renewal, 3) the reutilization plan be established from the view point of the quality improvement of schooling, and 4) the enlargement and rearranagemt of learning space be considerd when reutilization is planned.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.5
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• pp.111-119
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• 2017

The purpose of this study was to examine the effect of discrimination on thereutilization intentionfor dental services among patients who visited the dental clinic. The questionnaire was administered to 432 patients aged 20 years or older who visited Dental Clinic in J city, Chungcheongbuk-do. Day to March 31, 2015, and the following results were obtained. The important variables that affected the reutilization intention were quality of medics, kindness, hospital image, convenience, service value and discrimination of dental care service. These variables explained 78.2% of the aggregate. Thehigher the quality of service value, medics, environment facilities, convenience, kindness, and hospital image, the more significant was the relevance with reutilization intention. As well as high-educated respondents, ones with monthly household income amounted to 4 million won, group of white-collar job, people who visited for implant treatment and ones by introduction of acquaintances. Therefore the dental care service providers are required to take effortsto recognize the discrimination and to reduce it through good quality of dental care service.

• Journal of Technologic Dentistry
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• v.35 no.4
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• pp.387-394
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• 2013

Purpose: This aim of this paper is to research the influence of customer satisfaction and reutilization on Dental hospitals and clinics of medical service quality. Methods: The study examines 140 Patients who received treatment in Daegu from 1 July 2012 to 30 July 2012. The methods of research were used to factor analysis, reliability test using Cronbach's ${\alpha}$ factor, correlation analysis, multiple regression analysis and spss/win18.0. Results: The factor of quality of care has the highest impact on customer satisfaction. the influence of reutilization depends on the highest reliability and the physical environment was significant. Conclusion: To improve customer satisfaction and reutilization is required to maintenance of hospital facilities, medical services mind and quality of care. The medical service providers are important to develop patient education programs, self-development and customer satisfaction training techniques.

• Journal of Animal Science and Technology
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• v.52 no.6
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• pp.513-519
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• 2010

A series of experiments were performed to study the influence of the following parameters on the physical traits and composition of swine manure compost: (1) addition of magnesium (Mg) at a molar ratio of 1.2 with respect to $PO_4$, and (2) reutilization of compost containing $MgNH_4PO_4{\cdot}6H_2O$ (magnesium ammonium phosphate, MAP). Three independent batch tests were conducted for replication: batch test I-control (C) and Mg added (T), batch test II-C, T and compost recycle ($T_{R1}$), and batch test III-C, T and compost recycle ($T_{R2}$). Magnesium addition and compost reutilization had no adverse effect on the degradation of organic matter. Reuse of the compost, however, had a clear effect on the total nitrogen (TN) and total phosphorus (TP) contents in the final compost. Repeated compost reutilization as a bulking material was resulted in composts rich in N and P. Upon adding the Mg supplement to the composting materials, the ortho-phosphate (OP) to TP ratio decreased due to the MAP crystallization reaction. The decrease in the OP/TP ratio and the increase in the TP content of the compost indicate that water-soluble phosphate is converted into a slow-release phosphate by the formation of crystals during composting. X-ray diffraction analysis of the irregular shaped crystals in the compost indicated that they are MAP crystals and that the crystallization of MAP begins immediately after the addition of the Mg supplement. The Mg addition to composting materials and the reutilization of compost as a bulking material would be a practical means to conserve nutrient content.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.4 no.2
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• pp.78-97
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• 2010

Route discovery in wireless mobile networks requires a considerable amount of resources due to the mobility of the hosts. Therefore, it would be wise to utilize the effort already invested in existing paths. This paper proposes an efficient way to reuse, whenever possible, existing paths when a new path is being established. In our proposed algorithm, called Route Reutilization Routing (RRR), the reusability is accomplished by the notion of the dynamic proactive zones (DPZ), through which nearby existing path information is disseminated. By utilizing the information stored in DPZs, RRR can achieve considerable savings over other on-demand routing algorithms that use flooding. The unique feature of the proposed algorithm is that DPZs are created and destroyed dynamically around the existing paths, whereas proactive zones are formed around the nodes throughout the network in other route finding algorithms. Even though using DPZs may not result in the shortest path between source and destination, simulation results show the considerable reduction in traffic needed to find a path and therefore increases the available bandwidth for data transmission.

• Environmental Analysis Health and Toxicology
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• v.30 no.sup
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• pp.2.1-2.11
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• 2015

Objectives This study presents a methodology that enables a quantitative assessment of green chemistry technologies. Methods The study carries out a quantitative evaluation of a particular case of material reutilization by calculating the level of "greenness" i.e., the level of compliance with the principles of green chemistry that was achieved by implementing a green chemistry technology. Results The results indicate that the greenness level was enhanced by 42% compared to the pre-improvement level, thus demonstrating the economic feasibility of green chemistry. Conclusions The assessment technique established in this study will serve as a useful reference for setting the direction of industry-level and government-level technological R&D and for evaluating newly developed technologies, which can greatly contribute toward gaining a competitive advantage in the global market.

• Proceedings of the Korean Institute of Resources Recycling Conference
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• 1993.03a
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• pp.19.2-19
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• 1993

• Journal of the Korean Wood Science and Technology
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• v.23 no.1
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• pp.3-12
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• 1995

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2003.10a
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• pp.34-39
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• 2003