• Korean Journal of Organic Agriculture
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• v.28 no.3
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• pp.335-346
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• 2020

The objective of this study is to analyze the consumer perception of reusable wreath and present the considerations for introducing the labeling system, and to calculate the social benefits and costs of that. For this, We did an internet survey on the perceptions and willingness-to-pay for reuse wreath to 330 adults. As a result, only 56.1 percent of those who ordered wreath were found to check whether they actually arrived. 73.6% of the respondents had the willingness-to-purchase a reusable wreath if the price was reasonable, and 43.6% were in favor of labeling reused wreath as 'reused wreath'. The social benefits of introducing the reusable currency marking system are about 155,692 million won and the social cost about 43.52 million won. If reusable wreath are not recognized and purchased at the price of new one, economic and emotional losses of domestic horticulture farmers and consumers may occur. Therefore, related agencies will be able to expand sales of domestic flower producers and protect the economic and emotional benefits of consumers if they make efforts to establish and operate a reusable wreath labeling system.

• Korean Journal of Digital Imaging in Medicine
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• v.3 no.1
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• pp.52-58
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• 1997

Before entering 21st Century, modern medical science is requiring more precise display which is highly estimated in diagnostic value as radial science technology is achieving sharp development. And it is also trying to contribute to improve national health and to offer better service by reducing radial exposure. General projection and Fluoroscopy which are most difficult to be displayed in digital tend to change their way ; from analog to digital with development of Electronic Engineering and Computer Technology, Introducing to CR system in 1994, SMC have displayed General projection and Fluoroscopy 100% in digital using CR system. This study searched differences between repeat rate, repeat type in the exam using Film/Screen and those in the exam using CR system. According to the analysis of repeat types and repeat rate of Film which was reused by using CR system in general projection room and Fluoroscopy room of SMC, we found that total 192,813 films were used and 2,097 films, 1.09% of total were reused. However, actual repeat covers 0.76% to 1,461 sheets with the exception of 636sheets. As above, display process using CR system is 0.76% much lower than general repeat rate 2$\sim$4% of Film/Screen exam. Besides decreased under/over exposure, it is appeared that position failure rate in repeat rate 0.76% covers relatively high 31%. Noticing that repeat caused unskilled devices handing was found many times, sufficient understanding seems to be required to reduce repeat.

• Nuclear Engineering and Technology
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• v.52 no.6
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• pp.1231-1242
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• 2020

The Kori Unit 1 will be decommissioned after a permanent shutdown in June 2017. South Korea has a 0.1 mSv/yr exposure limit standard for limited or unlimited site release. This is South Korea's first commercial NPP; therefore, if the containment building is reused as a memorial hall, it will contribute to the improvement of public understanding and enhance the public's acceptance of NPPs. Also, existing Kori Unit 1 nuclear power plant manpower resources can be reused after decommissioning and resident staff and memorial hall visitors can activate nearby commercial areas. Therefore, such a reuse scenario may also prevent an economic recession. The exposure dose was calculated using the following scenarios: worker in the containment building, visitor in the containment building, and worker in buildings other than the containment building. The exposure dose in the buildings was calculated by the RESRAD-BUILD developed by the Argonne National Laboratory (ANL). The preliminary exposure dose and derived concentration guideline level (DCGL) were derived.

• The Transactions of the Korea Information Processing Society
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• v.2 no.2
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• pp.176-184
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• 1995

The software reuse is a prospective way to improve software productivity and quality but not applied very well in practice, because there is no quantitative metric for software quality. In this paper we proposed the quantification of the reuse of software that we can measure the possibility of the reuse by applying the reuse assessment metric to the module after the extraction of a module from existing software. For measuring the module that can be reused, we divided the factors of quality by the generality, simplicity, maintainability and modularity, and identified and measured the module by the factors and finally decided the possibility of the software reuse. The advantage of the proposed metric is that we can find the inappropriate reuse of module exactly at the beginning by measuring quantitatively the module to be reused.

• The Journal of Korean Academy of Prosthodontics
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• v.35 no.2
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• pp.357-364
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• 1997

IPS-empress system is one of widely used all ceramic system. The purpose of this study was to determine the pressing accuracy of reused IPS%Empress ingot. 10 specimens were made using new ingot first, and using the rests of the specimen the another group of specimens were made next. finally, the third group of specimens were made with same procedure mentioned above. The results obtained in this study were as follows ; 1. The pressing accuracy of the first group of specimen was 96.1%, that of the second group was 95.4%, and that of the third group was 95.4%. There was no statistical significance among them, that is, the reuse of the IPS-Empress ingot did not influence on the pressing accuracy. 2. the common site of the defect in pressed ingot was central area at the margin opposite of sprue hole.

• Journal of the Korea Society of Computer and Information
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• v.11 no.5 s.43
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• pp.149-156
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• 2006

The demands for the development of large scale software systems are being increased. Various software development methods have been introduced to meet these demands. The unit size of the codes that are reused is increasing in the development methods. These units reflect the concept of software reusability and can be identified as the object, component, and module. Recent trend in the development or a large scale software systems treats a commercial program as a unit to be reused. This approach lies along the same line as the identification of above three types of units. This paper shows how the above four types of units for enhancing the software reusability can be applied to the development of automatic graphic drawing System for a metal production.

• Bulletin of the Korean Chemical Society
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• v.34 no.10
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• pp.3055-3058
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• 2013

Methanesulfonic acid (MSA) was used as catalyst to remove trace organic sulfur (thiophene) from Fluid Catalytic Cracking gasoline (FCC) via alkylation with olefins. The reactions were conducted in Erlenmeyer flask equipped with a water-bath under atmospheric pressure. The influence of the temperature, the reaction time, and the mass ration of MSA were investigated. After a 60 min reaction time at 343 K, the thiophene conversion of 98.7% was obtained with a mass ration of MSA to oil of 10%. The catalyst was reused without a reactivation treatment, and the thiophene conversion reached 92.9% at the third time. The method represents an environmentally benign route to desulfur, because MSA could easily be separated from the reaction mixture via decantation and it could be reused.

• ETRI Journal
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• v.38 no.5
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• pp.818-828
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• 2016

This paper proposes a reusable design for the merging process used in three-dimensional High Efficiency Video Coding (3D-HEVC), which can significantly reduce the implementation complexity by eliminating duplicated module redundancies. The majority of inter-prediction coding tools used in 3D-HEVC are utilized through a merge mode, whose extended merging process is based on built-in integration to completely wrap around the HEVC merging process. Consequently, the implementation complexity is unavoidably very high. To facilitate easy market implementation, the design of a legacy codec should be reused in an extended codec if possible. The proposed 3D-HEVC merging process is divided into the base merging process of reusing HEVC modules and reprocessing process of refining the existing processes that have been newly introduced or modified for 3D-HEVC. To create a reusable design, the causal and mutual dependencies between the newly added modules for 3D-HEVC and the reused HEVC modules are eliminated, and the ineffective methods are simplified. In an application of the proposed reusable design, the duplicated reimplementation of HEVC modules, which account for 50.7% of the 3D-HEVC merging process, can be eliminated while maintaining the same coding efficiency. The proposed method has been adopted as a normative coding tool in the 3D-HEVC international standard.

• Proceedings of the KSME Conference
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• 2008.11b
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• pp.2862-2867
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• 2008

High-temperature components of gas turbine operated for certain period of time can be reused by being repaired or rejuvenated. In case of the gas turbine combustion liners, the biggest and the most important one in the high-temperature components, come in a repair shop after operated for 8,000 or 12,000 hours according to the model and go through the repair and rejuvenation in order to be reused. A stated combustion liner is the first channel which has the combustion gas reached a nozzle from a fuel nozzle. Materials and coating properties of old and new model combustion liners were investigated. To repair these components after the visual inspection, the coatings of combustion liners were removed and then FPI(Fluorescent Penetrant Inspection), a kind of the NDI(Non-Destructive Inspection), was conducted. Damage patterns and the number of the damaged components were classified and analyzed based on data provided from the visual inspection over a long period of time. Focusing on the difference between old model and new model combustion liners, we analyzed the damage distribution and changes and consequently concluded that new model combustion liner would increase repair rate.

• Journal of Environmental Health Sciences
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• v.10 no.2
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• pp.99-111
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• 1984

The survey was made on the use and care of cooking oil during a period from March 1st to April 30th in 1984to attribute for the later studies on the betterment of dietary conditions. 849 housewives in Seoul were selected randomly for the survey. The results obtained are as followes : Among 849 respondents, age of thirties consisted of 52.5% and 32.6% of for the fourties. For the levels of education, 26.1% of housewives was the graduates of university and 35.1% was of highschool. 38.2% of the respondents earned more than 600, 000won monthly, but 46.8% were on less than 600, 000won. 1. 67.8% of 370 housewives purchased soybean oil once a month, and 17.0% did once every three month. 2. In the method of placing the oil, 41.0% of housewives kept it at a cool place where no direct sunlight reaches, and the rest 51.8% kept the oil under the sink. 3. For the kind of container to keep the oil, 30.3% of them used glass and 24.3% used the plastic. 4. For the period of keeping the cooking oil for the reuse, 58.5% of the housewives kept the used oil for one month whereas 13.2% kept for two months. 5. 39.9% of housewives reused the same cooking oil twice before discarding it but 27.9% reused three times. 6. 27.0% of them dump rancid oil in drains, and 37.0% dump in dustbins.