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        검색결과 7

        1.
        2023.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Decabromodiphenyl ether (BDE209) is a persistent aromatic compound widely associated with environmental pollutants. Given its persistence and possible bioaccumulation, exploring a feasible technique to eradicate BDE209 efficiently is critical for today’s environmentally sustainable societies. Herein, an advanced nanocomposite is elaborately constructed, in which a large number of titanium dioxide ( TiO2) nanoparticles are anchored uniformly on two-dimensional graphene oxide (GO) nanosheets ( TiO2/GO) via a modified Hummer’s method and subsequent solvothermal treatment to achieve efficient photocatalytic degradation BDE209. The obtained TiO2/ GO photocatalyst has excellent photocatalytic due to the intense coupling between conductive GO nanosheets and TiO2 nanoparticles. Under the optimal photocatalytic degradation test conditions, the degradation efficiency of BDE209 is more than 90%. In addition, this study also provides an efficient route for designing highly active catalytic materials.
        4,000원
        2.
        2023.07 구독 인증기관·개인회원 무료
        Food waste is a critical problem for many countries. Food producers and groceries often discard imperfect foods or food by-products that still contain nutritional value. To address this problem, some food manufacturers have turned to upcycling, that is, to convert otherwise discarded ingredients into new food products (e.g., cacao fruit pulp into crunch bites). Consumers’ acceptance of sustainable products is generally lower than that of conventional products due to quality concerns. We speculate that for upcycled food products, consumers’ perception of product quality may vary when different percentages of imperfect ingredients are integrated into the products. Drawing from schema congruity theory, this research examines how the usage of imperfect ingredients can impact the perceived quality of upcycled food products. The implications for marketing upcycled foods are discussed.
        3.
        2023.07 구독 인증기관·개인회원 무료
        To address the existential threat of climate change, it is important to study environmentally sustainable products and marketing strategies to promote such products. A repurposed product is created by transforming old objects into something of greater value that serves a different purpose. For example, transforming an old tie into a coffee cup sleeve or turning a discarded oil can into a drum. Thus, repurposed products are one form of waste reduction via reuse. Repurposed products have become popular in the marketplace. There is, however, little research on repurposed product consumption. Furthermore, Gen Z is a relatively unexplored population in past research on sustainable consumption. To address these research gaps, our study identified segments of Gen Zers based on their perceptions of repurposed products via a person-centered approach. Our results provide strategies for effective marketing of repurposed products. Implications for marketers are provided.
        4.
        2022.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        CNTs/Al-Li composite was first prepared by hot-pressed sintering from Al-Li alloy powder and CNTs solution, and then the hot compression tests were performed on MMS-100 thermal simulator at strain rate range of 0.01– 10 s− 1, deformation temperature range of 350–500 °C, and total deformation amount of 60%. True stress–strain curves were plotted, and constitutive equation as well as hot processing maps were successfully confirmed based on Arrhenius constitutive model and Prasad instability criterion. Results show that CNTs/Al-Li composite have a very poor hot deformation ability and narrow processing region, which is strain rate range of 0.1–1 s− 1 and deformation temperature range of 360–400 °C. Hot extrusion experiment was carried out and the processing parameters were selected according to the established hot processing map, and an improvement on strength and a good balance between strength and plasticity can be obtained, which is about 650 MPa for tensile strength and 9% for elongation.
        4,000원
        5.
        2018.07 구독 인증기관·개인회원 무료
        In this paper, we investigate whether and how morality irrelevant inspiration can influence consumer’s own morality behavior. Thrash & Elliot (2003) conceptualized inspiration as a psychological construct with three core characteristics: evocation, transcendence, and motivation. Morality behavior include prescriptive morality (e.g., prosocial behavior) and proscriptive morality (e.g., immoral behavior), which have different antecedents. We propose a common antecedent for both faces of morality and found that morality-irrelevant inspirational experiences (triggered by others or oneself) could decrease proscriptive morality and increase prescriptive morality, via emotional and cognitive transcendence. This is the first paper to explore the roles played by the emotional and cognitive transcendence resulted from the inspirational experiences and the consequences of transcendence on a source-irrelevant context.
        6.
        2018.01 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Large-size graphene samples are successfully prepared by combining ultrosonic assisted liquid phase exfoliation process with oxidation-deoxidation method. Different from previous works, we used an ultrasound-treated expanded graphite as the raw material and prepared the graphene via a facile oxidation-reduction reaction. Results of X-ray diffraction and Raman spectroscopy confirm the crystal structure of the as-prepared graphene. Scanning electron microscopy images show that this kind of graphene has a large size (with a diameter over 100 μm), larger than the graphene from graphite powder and flake graphite prepared through single oxidation-deoxidation method. Transmission electron microscopy results also reveal the thin layers of the prepared graphene (number of layers ≤3). Furthermore, the importance of preprocessing the raw materials is also proven. Therefore, this method is an attractive way for preparing graphene with large size.
        4,000원