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5. Single-Event Burnout Hardening Method and Evaluation in SiC Power MOSFET Devices.

Author

Bi, Jian-Xiong, Wang, Ying, Wu, Xue, Li, Xing-ji, Yang, Jian-qun, Bao, Meng-Tian, and Cao, Fei

Subjects
*PSYCHOLOGICAL burnout, *BREAKDOWN voltage, *LINEAR energy transfer, *METAL oxide semiconductor field-effect transistors, *EVALUATION methodology, *SILICON carbide, *ELECTRIC fields
Abstract

In this article, a method of single-event burnout (SEB) hardening at high linear energy transfer (LET) value range is proposed and investigated by the 2-D numerical simulations. The improved MOSFET using this method and the conventional MOSFET are analyzed and compared to evaluate the effectiveness of this method. Simulation results show that, compared with the conventional MOSFET, the improved MOSFET using this method can effectively and quickly reduce the internal high electric field, thereby reducing the temperature. Under the condition of a LET value of 0.5 pC/μm and a drain voltage of 1200 V, the maximum drain current is 0.168 A, and the maximum global device temperature is 1724 K, which is much lower than the melting down temperature of silicon carbide (SiC) (3100 K). The hardening method in this article can be applied to different breakdown voltages by adjusting structure parameters. [ABSTRACT FROM AUTHOR]

Published
2020
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6. Crowd Intelligence: Conducting Asymmetric Impact-Performance Analysis Based on Online Reviews.

Author

Bi, Jian-Wu, Liu, Yang, Fan, Zhi-Ping, and Cambria, Erik

Subjects
CUSTOMER satisfaction, CROWDS, PRODUCT improvement, MARKETING research, QUALITY function deployment
Abstract

Asymmetric impact-performance analysis (AIPA) is an effective technique for understanding customer satisfaction and formulating improvement strategies for products and services. Typically, AIPA is conducted based on data obtained from customer surveys, which are expensive in terms of time and money. As a new data source, online reviews have many advantages, which are a promising data source for conducting AIPA. To this end, this article proposes a method for conducting AIPA based on online reviews. To illustrate the feasibility and validity of the proposed method, a case study of AIPA for a five-star hotel in Singapore is given. The proposed method can provide managers one more choice for conducting AIPA with lower cost and shorter time since products and services online reviews can be easily collected. [ABSTRACT FROM AUTHOR]

Published
2020
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7. Nanopatterning by phase change nanolithography

Author

Bi Jian Zeng, Wenli Zhou, Xiangshui Miao, and Zhi Li

Subjects
Electron-beam technology, Materials science, Nanolithography, Ion beam, Resist, Nanotechnology, Stencil lithography, Ion beam lithography, Lithography, Beam (structure)
Abstract

Several techniques such as the electron beam technology and ion beam technology are employed to obtain the high resolution nanopatterns. However, these techniques cause some problems, for example, the vacuum installation, high voltage power supply and low throughput, which consequently make these techniques more expensive. On the other hand, the organic resists used for lithography are important to control the shape and size of the patterns. The reactivity of the resist is dominated by the total irradiation amounts of a beam, that is, the number of electrons or ions or photons absorbed by the resist. As a result, the precision control of the shape and size for nanopatterns become difficult due to their intrinsic accumulation effect of the absorption in the resists.

Published
2012

8. A search engine of Internet information based on agent

Author

Cheng Xian-Yiu, Bi Jian-Liang, Yan Li, Xin Qing, Liu Yi-Song, and Xia De-Shen

Subjects
Spamdexing, Search-oriented architecture, Search engine, Information retrieval, business.industry, Computer science, Search analytics, Search engine indexing, The Internet, Database search engine, Metasearch engine, business
Abstract

In this paper, the frame of AgentSeek, which is a search engine based on agent are introduced. It can find user interesting the user does want, thereby rates of recall and accuracy have been improved largely.

Published
2005

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