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        체험의 개념

        주야린(YaLin Zhu),한경희(Kyeonghee Han),송도선(Do Seon Song) 한국교육철학회 2022 교육철학 Vol.83 No.-

        This study aims to reveal the concept of one's own ‘actual experience’ (體驗) by comparing with the concepts of experience, occupation, and work, focusing on J. Dewey's idea. First, if the concept of ‘actual experience’ is defined from an pedagogical point of view, it can be organized into ‘process of accepting external stimuli through the whole body by directly and specifically contacting the object through the body such as human sensory organs and muscles’. The concept of ‘actual experience’ in Dewey's thoughts was compared and analyzed with ‘experience’, ‘occupation’, and ‘work’, which are similarly used. First, experience contains very comprehensive meanings, but ‘actual experience’ can be said to be a subset of 'experience' in that it is used quite limitedly. Second, occupation refers to acquiring certain principles of objects related to real life, while actual experience refers to acquiring some knowledge through it. Third, while work pursues physical results, experience pursues psychological or intellectual results, and the former expects material and economic rewards, while the latter expects educational rewards.

      • Boosting oxygen reduction catalysis with abundant copper single atom active sites

        Li, Feng,Han, Gao-Feng,Noh, Hyuk-Jun,Kim, Seok-Jin,Lu, Yalin,Jeong, Hu Young,Fu, Zhengping,Baek, Jong-Beom The Royal Society of Chemistry 2018 Energy & environmental science Vol.11 No.8

        <P>With their high catalytic activity, stability, selectivity, and 100% atom utilization, single atomic non-noble metal based materials are valuable alternatives to efficient but expensive Pt based catalysts. For efficient catalysis, single-atom catalysts must expose abundant single atomic metal active centers. Here, we report the rational design and synthesis of a Cu single-atom catalyst with high Cu content of over 20.9 wt%, made of single atomic Cu anchored into an ultrathin nitrogenated two-dimensional carbon matrix (Cu-N-C). The high Cu content was achieved by the introduction of additional N species, which can securely trap and protect the Cu atoms. During oxygen reduction, the single atomic Cu exhibited over 54 times higher mass activity than metallic Cu nanoparticles at a potential of 0.85 V <I>versus</I> a reversible hydrogen electrode (RHE). Furthermore, the Cu-N-C exhibited 3.2 times higher kinetic current at 0.85 V (<I>vs.</I> RHE), and a much lower Tafel slope (37 mV dec<SUP>−1</SUP>), as well as better methanol/carbon monoxide tolerance and long-term stability than commercial Pt/C. Density functional theory (DFT) calculations reveal that the Cu active sites exhibit improved O-O bond stretching and favorable adsorption energies of O2 and OOH for four-electron oxygen reduction.</P>

      • KCI등재

        기후적 이점에 기반한 섬지역의 개발모델: 중국 하이난 섬의 경험을 중심으로

        Zhu Hong,Feng Dan,Cai Qinbo,Han Yalin 한국도시지리학회 2006 한국도시지리학회지 Vol.9 No.3

        섬이 갖는 독특한 특성은 현대 사회가 갖는 인구와 자원의 압박으로 인하여 대부분의 나라에서 중요하게 고려된다. 본 연구는 중국에서 두 번째로 큰 섬인 하이난 섬의 개발 과정을 살펴보고, 관광지로써 섬 개발의 요인을 분석하고자 한다. 오랫동안 이 섬은 정치적·경제적 중심지로부터 멀리 떨어져 있고 고립되어 있다는 지리적·사회적 특성 때문에 유배지로써 간주되었다. 이러한 특성으로 하이난 섬의 경제적·문화적 개발은 오랫동안 중국 대륙지역의 개발에 가려져 뒤쳐져 왔다. 그러나 1978년 이후 하이난이 가지는 독특한 기후적 이점을 이용하여 열대관광 상품 개발, 부동산 개발, 열대농업 및 새로운 양식의 청정산업 등의 개발을 통하여 사회적으로나 경제적으로 비약적으로 발전하게 되었다. 이러한 경제적 모델은 다른 섬지역의 개발에 실제적인 시사점을 줄 수 있을 것이다. The exceptional advantages of islands are attached great importance by all of the countries in modern societies which are under population and resource pressure. This study examines the development of Hainan Island, the second largest island in China which goes the same situation. For a long time in history, this island was regarded as a transporting place for exiles due to the social and geographic characteristics including remoteness, isolation from political and economic centers. As a result, the economic and cultural development of Hainan Island had been dropped behind by the continental areas for a long time. However, since 1978, taking full advantage of its unique climate resources, the Hainan Island has been undergoing great development socially and economically through developing tropical tourism industries, real estate, tropical agriculture and new pattern undefiled industries. This economic model can be used as a practical reference for other islands? development.

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