After the permanent shut down of Kori Unit 1, various decommissioning activities will be implemented, including decontamination, segmentation, waste management, and site restoration. During the decommissioning period, waste management is among the most important activities to ensure that the process proceeds smoothly and within the expected timeframe. Furthermore, the radioactive waste generated during the operation should be sent to a disposal facility to complete the decommissioning project. Square and cylindrical concrete re-package drums were generated during the 1980s and 1990s. The square, containing boron concentrates, and cylindrical, containing spent resin, concrete re-package drums have been stored in a radioactive waste storage building. Homogeneous radioactive waste, including boron concentrates, spent resin, and sludge, should be solidified or packaged in high-integrity containers (HICs). This study investigates the sequential segmentation process for the separation of contaminated and non-contaminated regions, the re-packaging process of segmented or crushed cement-solidified boron concentrate, and re-packaging in HICs. The conceptual design evaluates the re-packaging plan for the segmented and crushed cement-solidified waste using HICs, which is acceptable in a disposal facility, and the quantity of generated HICs from the treatment process.

To control western flower thrips (Frankliniella occidentalis), a significant pest of peppers, the control effects of eco-friendly agricultural materials were tested when treated alone and in combination. The control effects of yellow sticky roll traps installed on the stem, predatory natural enemy (Hypoaspis miles) inoculated on the stem, and plant extracts (50% custard apple seed oil + 10% cinnamon extract) sprayed on the foliage were 45.3%, 36.6%, and 50.2%, respectively, when treated individually. Meanwhile, when three eco-friendly agricultural materials were comprehensively applied, the control effect was maintained between 62.4% and 80.9% compared to untreated conditions during the pepper harvesting season. These methods can be utilized for the eco-friendly control of western flower thrips in pepper greenhouses.

시설 고추 주요 해충인 꽃노랑총채벌레(Frankliniella occidentalis)의 방제를 위해 유기농업자재들의 단독 처리 및 종합 투입시 방제 효과를 검정 하였다. 황색끈끈이롤트랩은 지제부에 설치하고, 포식성 천적(Hypoaspis miles)은 지제부에 접종하며, 식물추출물(커스터드애플시드 오일 50% + 계 피 추출물 10%)은 경엽살포하는 방식으로써 각각의 단독 처리시 방제 효과는 45.3, 36.6, 50.2%였다. 한편, 3종의 유기농업자재들을 종합 투입했을 경우 고추 수확기 방제 효과가 무처리 대비 62.4~80.9%로 유지되어, 시설 고추 꽃노랑총채벌레 친환경 방제용으로 활용이 가능할 것으로 생각된다.

This study examines the effect of cosmetic certification marks on consumer behavior. The underlying objectives of this study are threefold. First, it explores whether the certification mark inserted into the cosmetic package—such as marks denoting quality assurances, ethical practices (specifically, pertaining to animal testing), and recycling packaging—affects consumer responses. Second, it investigates whether a higher number of certification marks leads to heightened positive consumer responses. Third, it analyzes the potential moderating effect of consumers’ certification mark knowledge on the relationship between certification marks and consumer responses. In the pretest, certification marks with higher recognition were selected as stimuli, and a survey involving a total of 550 male and female consumers was conducted. The collected data were analyzed through ANOVA and post-hoc tests. The findings of this study confirm a significant difference in consumer responses to products based on the certification marks inserted in the cosmetic packaging. Compared to clusters without a certification mark, groups with two or more certifications (recycling certification + ethics certification, recycling certification + quality certification, recycling certification + ethics certification + quality certification) exhibit significant consumer responses. Second, more certification marks did not result in an increase in positive consumer responses. Third, a moderating effect of consumers’ cosmetic certification knowledge on the certification mark-consumer response relationship was not found. The findings of this study have implications for developing product promotion strategies that leverage cosmetic certification marks as a marketing tool.

As the decommissioning of nuclear power plants progresses, interest in the inevitably generated radioactive waste is also increasing. Especially, because the containers of ILW packages are significantly more expensive than the containers of LLW packages, the special attention should be focused on minimizing the number of the containers of ILW packages. The radiation dose limit for packaging of ILW shall not exceed 2 mSv/h and 0.1 mSv/h on contact and at 2 m, respectively in South Korea. Meanwhile, The DEMplus provides various environmental geometry and all properties such as materials, absorptions, and reflections and the estimation of the radiation dose rates is based on the radiation interactions of the designed 3D geometry model. With the consideration of the radiation dose rate by using DEMplus and its strategy of packaging and cutting plan, the number of containers for ILW packages generated from decommissioning of Reactor Vessel Internal (RVI) of a nuclear power plant that has been in operation for decades was optimized in this paper. The modular shielded containers (MSC) with shielding inserted were used for radioactive wastes that require shielded packaging. In order to verify the accuracy of the estimated radiation dose rate by using DEMplus, the estimated results were compared with those obtained using MicroShield. The trends of the estimated radiation dose rates using DEMplus and the estimation of MicroShield were similar to each other. The results of this study demonstrated the feasibility of using DEMplus as a means of estimating the radiation dose limit in packaging plan of the radioactive waste.

In order to develop greenhouse cooling and water saving technologies suitable for desert climate, the performance evaluation of the cooling packages and condensate water recovery from cooling fan coil unit. As a result of the application for tomato greenhouse in summer, the root zone temperature of root zone cooling+duct cooling case and root zone cooling case was 25℃ during the day and 20℃ at night, which was suitable for tomato growth. When the nutrient solution tank was cooled, the temperature of the nutrient solution was maintained at 20 degrees, but otherwise, the temperature exceeded 30℃, causing the root zone temperature to rise. Condensate water recovery per fan coil unit was 93L on average per day in August, and was proportional to relative humidity in greenhouse and temperature difference between dew point temperature and the surface temperature of heat exchanger. Tomato growth was found to be improved in the order of root zone cooling+duct cooling, root zone cooling, duct cooling and control. It was analyzed that the yield of root zone cooling+duct cooling, root zone cooling and duct cooling increased by 35%, 28% and 11%, respectively, compared to the control.

본 연구는 식품 영역에서 제품 패키지의 광택이 소비자들이 인식하는 기업 친환경성과 제품 품질에 미치는 영향을 확인하고, 최종적으로 구매의도에 차이를 유발하는지 확인하고자 실시되었다. 실험 참가자들은 패키지에 광택이 도 는 유광 조건과 광택이 없는 무광 조건으로 무선 할당되었으며, 케첩과 감자칩 제품을 보고 기업 친환경성 인식, 품질인식, 구매의도를 묻는 문항들에 응답하였다. 연구 결과, 소비자들은 무광 패키지 제품을 제조한 기업이 유광 패키지 제품을 제조한 기업보다 더 유기농 재료를 사용할 것이며, 더 친환경적일 것이라고 인식하였다. 또한 소비자 들은 기업이 친환경적일 것이라고 인식할수록 제품의 품질을 높게 평가하였으며, 더 높은 구매의도를 보였다. 본 연구는 패키지 광택의 효과를 친환경 식품 영역에서 기업 이미지 인식에까지 확장하였으며, 패키지 광택을 이용한 친환경 마케팅 방식을 제안했다는 점에서 이론적, 실무적 의의를 가진다. 본 연구의 한계, 가능한 향후 연구 방향도 함께 논의하였다.

The decommissioning waste generated during the dismantling of a nuclear power plant has various types and radioactivity levels and is characterized by being generated in a large amount in a short time. For the safe and efficient management of decommissioning waste with these characteristics, the Korea Radioactive waste Agency (KORAD) is developing a large container for decommissioning waste. And the Waste Certification Program (WCP) requirement was developed for the development of a Waste certification program for nuclear power plant operators that can prove whether the transfer/ acceptance criteria are satisfied at the step of generation of decommissioning waste packages. The radioactive waste profile, which is a waste quality certification document required by the WCP requirements, allows the KORAD to confirm that the disposition suitability evaluation was performed for each process of decommissioning waste and radiological characteristic data were evaluated appropriately. Therefore in this study, in order to propose a draft of a radioactive waste profile for large packages of decommissioning waste, overseas cases and the draft radioactive waste profile of the WCP requirements was analyzed. In addition, it was attempted to increase the utility of the derived waste profile by clearly suggesting the treatment methods for each waste stream considering the physical and radioactive characteristics evaluation methods of large decommissioning waste packages. The proposed large decommissioning waste profile can be used in the future development of a nuclear power plant operator’s decommissioning waste certification program, as well as KORAD’s a disposal facility safety evaluation and improvement of the waste tracking management system (WTS).

본 연구는 반도체 제품과 설비기술을 대상으로 제품-공정기술 공진화를 교차영향분석(cross impact analysis)을 통해 구체화하고, 공진화 관계를 기술 인텔리전스의 대표적 도구 중 하나인 기술레이더에 통합하는 방법을 제시한다. 교차영향분석을 통해 공정기술 발전과 제품특성 개선이 반복되는 공진화 경로와 축이 되는 세부기술들을 파악했다. 또한 공진화 관계를 기술레이더의 기술가치평가 프로세스에 반영 해 가치평가와 연구개발 포트폴리오의 신뢰성을 제고했다. 학술적 측면에서 기술간 공진화를 세부기술 단위에서 구체화했으며, 기술 공진화 이론과 기술 인텔리전스의 접점을 제시했다는 의미가 있다. 실무적 측면에서는 반도체 관통전극-하이브리드 패키지 제품과 주요 후공정 기술간 공진화 및 기술레이더 분석 실례를 제시하고, 이를 통해 기술간 공진화 관계를 기존 기술전략 및 기획도구에 반영 해 기업의 미래준비역량과 전략기획의 신뢰성을 제고하는 방법을 구체화했다는 점에서 가치가 있다.

본 연구에서는 malic acid가 혼입된 유청 분리 단백질(whey protein isolate; WPI) 소재 항균 코팅(MA-WPI)과 포장 후(in-package) 유전체 장벽 방전 대기압 콜드 플라즈마(atmospheric dielectric barrier discharge cold plasma; ADCP)의 병합 처리가 닭가슴살 가공육에 오염된 Salmonella와 Listeria monocytogenes 저해 효과를 확인하였다. 3% (w/w, total coating solution) malic acid가 혼입되지 않거나 혼입된 WPI 코팅 용액으로 코팅된 닭가슴살 가공육(2 ´ 2 cm; 원통형) 을 상업적으로 사용되는 polyethylene terephthalate 용기(14 ´ 10 ´ 3 cm)에 15개씩 담아 ADCP 처리하였다. ADCP 처 리 전압(21, 24, 그리고 27 kV)과 처리 시간(1, 3, 그리고 5분)을 변수로 하여 닭가슴살 가공육에 접종된 Salmonella 저 해에 대한 최적 처리 조건(24 kV, 3분)을 결정하였고, 항균 코팅과 병합 처리 시 ADCP 처리 조건으로 사용되었다. 단 독 CP 처리, 단독 MA-WPI 코팅, 그리고 MA-WPI + CP 병합 처리 시 Salmonella는 각각 1.3 ± 0.1, 1.1 ± 0.2, 그리고 1.8 ± 0.1 log CFU/g만큼 저해되었고, L. monocytogenes는 0.9 ± 0.1, 0.5 ± 0.1, 그리고 1.3 ± 0.1 log CFU/g만큼 저해되 어 MA-WPI + CP 병합 처리가 각각의 단독 처리보다 Salmonella와 L. monocytogenes 저해 효과를 증가시킴을 알 수 있었다(p<0.05). 본 연구의 결과는 in-package ADCP 처리와 MA-WPI 항균 코팅의 병합 처리가 미생물을 효과적으로 저해시키는 포장 후 비가열 처리 기술로서의 가능성이 있음을 보여주었다.