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746 results on '"Xia, Lixin"'

21. By Using Number State Filtered Coherent States to Improve Phase Sensitivity with Multiple Passes

Author

Xia, Lixin, Lan, Yu, Rusul, Abdujappar, Niyazi, Yasheng, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Hung, Jason C., editor, Chang, Jia-Wei, editor, Pei, Yan, editor, and Wu, Wei-Chen, editor

Published
2022
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32. Examples in the detection of heavy metal ions based on surface-enhanced Raman scattering spectroscopy

Author

Xu Guangda, Song Peng, and Xia Lixin

Subjects
heavy metal ions, nanoparticles, rapid detection, sers substrate, surface-enhanced raman scattering spectroscopy, Physics, QC1-999
Abstract

Heavy metals have been widely applied in industry, agriculture, and other fields because of their outstanding physics and chemistry properties. However, heavy metal pollution is inevitable in the process of mass production and emission. Heavy metal ions will cause irreversible harm to the human body and other organisms due to their nondegradable nature even at low concentrations of exposure and ingestion. Therefore, it is of great significance for human health and ecological environment to develop high accuracy and sensitivity as well as stable techniques for detecting heavy metal ions. In recent years, surface-enhanced Raman scattering (SERS) spectroscopy has been regarded as a promising new technique for the determination of trace heavy metal ions on account of its special fingerprint identification capability, high sensitivity, rapid detection ability, and simple operation. This review summarized in detail the basic principles and strategies for detecting mercury ions, copper ions, arsenic ions, zinc ions, cadmium ions, lead ions, and chromium (VI) ions as well as the current challenges and future trends for the determination of heavy metal ions based on SERS technology.

Published
2021
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34. Poly(ionic liquid)s‐Based Thermal‐Responsive Microgel for Use as SERS Substrates with "ON–OFF" Switchable Effect.

Author

Chen, Yaxian, Wang, Huiting, Wan, Yu, Li, Shun, Zhang, Ling, Xing, Zhiqiang, Zhang, Qian, and Xia, Lixin

Subjects
POLYMERIZED ionic liquids, BIOCHEMICAL substrates, SUBSTRATES (Materials science), SERS spectroscopy, IONIC liquids, THERMORESPONSIVE polymers, GOLD nanoparticles
Abstract

A temperature‐responsive surface‐enhanced Raman scattering (SERS) substrate with "ON–OFF" switching based on poly(ionic liquid)s (PILs) block copolymer microgels have been designed and synthesized. The PIL units act as a joint component to anchor the gold nanoparticles (AuNPs) and analytes onto poly(N‐isopropylacrylamide) (PNIPAm). This anchor allows the analytes to be fixed at the formed hot spots under temperature stimulus. Owing to the regulation of the PNIPAm segment, the SERS substrates exhibit excellent thermally responsive SERS activity with a reversible "ON–OFF" effect. Additionally, because of the anion exchange of PILs, microgels can introduce new analytes, which offers more flexibility for the system. The substrate shows excellent reversibility, controllability, and flexibility of SERS activity, which is expected to have a broad application in the field of practical SERS sensors. [ABSTRACT FROM AUTHOR]

Published
2024
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40. Corpora and Collocations in Chinese-English Dictionaries for Chinese Users

Author

Xia, Lixin

Abstract

The paper identifies the major problems of the Chinese-English dictionary in representing collocational information after an extensive survey of nine dictionaries popular among Chinese users. It is found that the Chinese-English dictionary only provides the collocation types of "v+n" and "v+n," but completely ignores those of "v+adv," "adj+n" and "adv+adj." And as a common practice, this kind of dictionary doesn't give different collocates of synonymous equivalents. Besides, it provides collocational information on the basis of the headword, but not the equivalents. This leads to the suggestions for a new way of representing collocational information in Chinese-English dictionaries. The most important thing is that the Chinese-English dictionary should provide collocational information about the equivalents instead of the headword. All the five types of collocation are given the same status in a dictionary. Moreover, with corpus data, the selective restrictions of the English equivalents in meanings, frequency and semantic prosody should be explicitly represented to dictionary users by glosses, illustrative examples, collocation columns, etc. It is argued that by doing so, the dictionary will better meet the needs of the users.

Published
2015

45. Colligational Patterns in China English: The Case of the Verbs of Communication

Author

Xia, Lixin, Xia, Yun, Li, Qian, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Sun, Maosong, editor, Huang, Xuanjing, editor, Ji, Heng, editor, Liu, Zhiyuan, editor, and Liu, Yang, editor

Published
2019
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