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Cao, Yuebin,Xiao, Yanjun,Jung, Jin-Young,Um, Han-Don,Jee, Sang-Won,Choi, Hye Mi,Bang, Jin Ho,Lee, Jung-Ho American Chemical Society 2013 ACS APPLIED MATERIALS & INTERFACES Vol.5 No.3
<P>Traditional Pt counter electrode in quantum-dot-sensitized solar cells suffers from a low electrocatalytic activity and instability due to irreversible surface adsorption of sulfur species incurred while regenerating polysulfide (S<SUB><I>n</I></SUB><SUP>2–</SUP>/S<SUP>2–</SUP>) electrolytes. To overcome such constraints, chemically synthesized Cu<SUB>2</SUB>ZnSn(S<SUB>1–<I>x</I></SUB>Se<SUB><I>x</I></SUB>)<SUB>4</SUB> nanocrystals were evaluated as an alternative to Pt. The resulting chalcogenides exhibited remarkable electrocatalytic activities for reduction of polysulfide (S<SUB><I>n</I></SUB><SUP>2-</SUP>) to sulfide (S<SUP>2–</SUP>), which were dictated by the ratios of S/Se. In this study, a quantum dot sensitized solar cell constructed with Cu<SUB>2</SUB>ZnSn(S<SUB>0.5</SUB>Se<SUB>0.5</SUB>)<SUB>4</SUB> as a counter electrode showed the highest energy conversion efficiency of 3.01%, which was even higher than that using Pt (1.24%). The compositional variations in between Cu<SUB>2</SUB>ZnSnS<SUB>4</SUB> (<I>x</I> = 0) and Cu<SUB>2</SUB>ZnSnSe<SUB>4</SUB> (<I>x</I> = 1) revealed that the solar cell performances were closely related to a difference in electrocatalytic activities for polysulfide reduction governed by the S/Se ratios.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2013/aamick.2013.5.issue-3/am302522c/production/images/medium/am-2012-02522c_0007.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/am302522c'>ACS Electronic Supporting Info</A></P>
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金彦君(Yanjun Jin),曹露浩(Luhao Cao) YIXIN 출판사 2023 Journal of China Studies Vol.1 No.3
随着中国数字文化产业的发展状大及市场潜能提升,发展中国数字文化产业成为产业经济市场化的必行之路。然而,中国数字文化产业在强大自身内核和走向国际舞台的过程中,依然面临理论基础薄弱,内容缺乏创新性,法律法规监管不够完善,产业结构不均衡等发展问题。对此,本研究针对中国数字文化产业发展的以上问题进行剖析,为中国数字文化产业发展寻找合适的路径和对策,以期为中国数字文化产业发展贡献微薄之力。 With the rapid growth of China’s digital culture industry and the expanding market potential, the industry's development has become an essential avenue for marketizing the industrial economy. However, as China's digital culture industry strives to strengthen its core and make strides onto the international stage, it grapples with developmental challenges such as a weak theoretical foundation, a lack of content innovation, inadequate legal and regulatory oversight, and an imbalanced industrial structure. In light of these issues, this study conducts an analysis of the aforementioned challenges within China's digital culture industry. The goal is to identify suitable strategies and pathways for its advancement, thereby making a valuable contribution to the industry’s growth in China.
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曹露浩(Luhao Cao),金彦君(Yanjun Jin) YIXIN 출판사 2023 Journal of Humanities and Social Sciences Vol.1 No.2
大数据步入各行各业,对新闻业界也产生了重大影响。在数据新闻中,可视化被视为发展极其关键的一环,运用可视化的手法呈现新闻,拓展了新闻生产的内容和呈现方式。本研究借助科学计量学软件 CiteSpace,以知网数据库(CNKI)中的数据新闻近 20 年的相关文献为数据来源,对数据新闻的共现和聚类进行分析,对最新研究动态和发展对策进行可视化知识图谱绘制,并结合定量和定性分析,以澎湃“美数课”为例,在选取部分样本后,采用文本分析的方法探究可视化与数据新闻传播效果的呈现关系,以期为数据新闻媒体在今后采取可视化形式呈现新闻时寻求发展策略,更好推动该行业的良性发展。 Big data has entered various industries and has had a significant impact on the news industry. In data news, visualization is seen as a crucial aspect of development, and the use of visualization techniques to present news has expanded the content and presentation methods of news production. This study utilizes the scientific metrology software CiteSpace to analyze the co-occurrence and clustering of data news from relevant literature in the CNKI database over the past 20 years, and to visualize knowledge graphs of the latest research trends and development strategies. And this study combines quantitative and qualitative analysis, taking the ‘Meishuke’ on ‘www.thepaper.cn’ as an example. After selecting some samples, text analysis is used to explore the relationship between visualization and the presentation effect of data news dissemination, in order to seek development strategies for data news media in the future when presenting new news in visual form and better promote the healthy development of the industry.
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