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| 1 | Diatom-inspired multiscale mineralization of patterned protein-polysaccharide complex structures显示文摘Marine diatoms construct their hierarchically ordered,three-dimensional(3D)external structures called frustules through precise biomineralization processes.Recapitulating the remarkable architectures and functions of diatom frustules in artificial materials is a major challenge that has important technological implications for hierarchically ordered composites.Here,we report the construction of highly ordered,mineralized composites based on fabrication of complex self-supporting porous structures—made of genetically engineered amyloid fusion proteins and the natural polysaccharide chitin—and performing in situ multiscale protein-mediated mineralization with diverse inorganic materials,including SiO_(2),TiO_(2)and Ga_(2)O_(3).Subsequently,using sugar cubes as templates,we demonstrate that 3D fabricated porous structures can become colonized by engineered bacteria and can be functionalized with highly photoreactive minerals,thereby enabling co-localization of the photocatalytic units with a bacteria-based hydrogenase reaction for a successful semi-solid artificial photosynthesis system for hydrogen evolution.Our study thus highlights the power of coupling genetically engineered proteins and polysaccharides with biofabrication techniques to generate hierarchically organized mineralized porous structures inspired by nature. | Ke Li Yingfeng Li Xinyu Wang Mengkui Cui Bolin An Jiahua Pu Jintao Liu Boyang Zhang Guijun Ma Chao Zhong | 2021 | National Science Review2021，8，8： | 1 |
| 2 | Sentiment Analysis of Japanese Tourism Online Reviews显示文摘Purpose: Online reviews on tourism attractions provide important references for potential tourists to choose tourism spots. The main goal of this study is conducting sentiment analysis to facilitate users comprehending the large scale of the reviews, based on the comments about Chinese attractions from Japanese tourism website 4 Travel.Design/methodology/approach: Different statistics-and rule-based methods are used to analyze the sentiment of the reviews. Three groups of novel statistics-based methods combining feature selection functions and the traditional term frequency-inverse document frequency(TF-IDF) method are proposed. We also make seven groups of different rulesbased methods. The macro-average and micro-average values for the best classification results of the methods are calculated respectively and the performance of the methods are shown.Findings: We compare the statistics-based and rule-based methods separately and compare the overall performance of the two method. According to the results, it is concluded that the combination of feature selection functions and weightings can strongly improve the overall performance. The emotional vocabulary in the field of tourism(EVT), kaomojis, negative and transitional words can notably improve the performance in all of three categories. The rule-based methods outperform the statistics-based ones with a narrow advantage.Research limitation: Two limitations can be addressed: 1) the empirical studies to verify the validity of the proposed methods are only conducted on Japanese languages; and 2) the deep learning technology is not been incorporated in the methods.Practical implications: The results help to elucidate the intrinsic characteristics of the Japanese language and the influence on sentiment analysis. These findings also provide practical usage guidelines within the field of sentiment analysis of Japanese online tourism reviews.Originality/value: Our research is of practicability. Currently, there are no studies that focus on the sentiment analysis of Japanese reviews about Chinese attractions. | Chuanming Yu Xingyu Zhu Bolin Feng Lin Cai Lu An | 2019 | Journal of Data and Information Science2019，4，1： | 1 |
| 3 | Management Strategies for Ecocities of Sustainable Development显示文摘Building ecocities becomes an objective requirement for sustainable development. This article discusses the relationship between sustainable development and sustainable urban development. On the basis of discussing the sigificance of sustainable urban development and that of an eco-city from different perspectives, it suggests several management strategies for developing an eco-city, a desirable sustainable urban model. | Zhao Linan, Yang Bolin, Xu MingzhiManagement School, Xi’an Jiaotong University, Xi’an 710049, China Shandong Institute of Architecture and Engineering, ]inan 250014, China | 2004 | Chinese Journal of Population,Resources and Environment2004，2，1： | 0 |
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