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        검색결과 2

        1.
        2022.05 구독 인증기관·개인회원 무료
        The permanent shutdown of Wolseong 1, PHWR (Pressurized Heavy Water Reactor) was decided. Accordingly, there is need for C-14 treatment technology to spent resin generated by PHWR in classified Medium Level Radioactive Waste by C-14 specific activity. However, spent resin by PHWR is mixed and stored with activated carbon and zeolite (mixture), not a single storage, and separation from the mixture must be carried out in advance for C-14 treatment in the spent resin. This study developed a C-14 treatment facility that combined with the technology of separating spent resin from spent resin mixture by PHWR NPP and the technology of C-14 treatment for disposal. The C-14 treatment facility consists of spent resin separation (Part 1) and treatment of separated spent resin. (Part 2) Part 1 is applied with a process of separating the mixed and stored spent resin from the spent resin mixture by applying a drum screen method. In the case of Part 2, spent resin treatment process for desorbing and collecting C-14 nuclides in the separated spent resin using microwave reactor was applied. Except for the adsorbent used to collect C-14 detached in the process of separating and treating spent resin, no additional material is introduced into the facility, and thus secondary waste is significantly reduced. In addition, pollution prevention banks at the bottom of the facility and a sealed automated circulation system were applied to prevent unexpected leakage and diffusion of radioactive materials and ensure stability of workers. Currently, the C-14 treatment facility has been verified for spent resin separation and spent resin treatment using simulated spent resin mixture, and the facility will be demonstrated and verified for field applicability. According to derived results, it is believed that it will be possible to apply the C-14 treatment facility when decommissioning of PHWR.
        2.
        2018.07 구독 인증기관·개인회원 무료
        The key objectives of the research is to examine the impacts of consumption community and underlying motivations for joining consumption communities in consuming masculine products among Korean female consumers. This study is the first to link a consumption community to social identity theory. To find an answer to our research questions, the study uses Korean Harley Davidson female riders who ride the American heavy motorcycle in a consumption community to answer the research questions. Harley Davidson is an icon of masculine products due to the size and the powerful engine of the motorcycle. A hermeneutic approach is adopted to understand Korean female consumers’ motivations in joining consumption communities and their perceptions about riding a Harley Davidson motorcycle. A hermeneutic method uses personal in-depth interviews to elicit the behaviors, values, and motivations that researchers are trying to understand (Kozinets, 2001; Thompson et al., 1994). The hermeneutic method is appropriate when researchers are attempting to understand motivations, values and beliefs deeply embedded in a person’s mind (Thompson et al., 1994).