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111 results on '"Wu, Shaobing"'

7. Crime Prediction Using Data Mining and Machine Learning

Author

Wu, Shaobing, Wang, Changmei, Cao, Haoshun, Jia, Xueming, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Liu, Qi, editor, Mısır, Mustafa, editor, Wang, Xin, editor, and Liu, Weiping, editor

Published
2020
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15. Big Data Security Framework Based on Encryption

Author

Wu, Shaobing, Wang, Changmei, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Sun, Xingming, editor, Pan, Zhaoqing, editor, and Bertino, Elisa, editor

Published
2018
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24. ReS 2 Nanoflowers-Assisted Confined Growth of Gold Nanoparticles for Ultrasensitive and Reliable SERS Sensing.

Author

Li, Yongping, Liao, Haohui, Wu, Shaobing, Weng, Xiaoyu, Wang, Yiping, Liu, Liwei, Qu, Junle, Song, Jun, Ye, Shuai, Yu, Xiantong, and Chen, Yu

Subjects
SERS spectroscopy, GOLD nanoparticles, BIOPESTICIDES, TRANSITION metals, RAMAN scattering, DETECTION limit
Abstract

ReS2, as a new member of transition metal dichalcogenides (TMDCs), has emerged as a promising substrate for semiconductor surface-enhanced Raman spectroscopy (SERS) due to its unique optoelectronic properties. Nevertheless, the sensitivity of the ReS2 SERS substrate poses a significant challenge to its widespread application in trace detection. In this work, we present a reliable approach for constructing a novel ReS2/AuNPs SERS composite substrate, enabling ultrasensitive detection of trace amounts of organic pesticides. We demonstrate that the porous structures of ReS2 nanoflowers can effectively confine the growth of AuNPs. By precisely controlling the size and distribution of AuNPs, numerous efficient and densely packed "hot spots" were created on the surface of ReS2 nanoflowers. As a result of the synergistic enhancement of the chemical and electromagnetic mechanisms, the ReS2/AuNPs SERS substrate demonstrates high sensitivity, good reproducibility, and superior stability in detecting typical organic dyes such as rhodamine 6G and crystalline violet. The ReS2/AuNPs SERS substrate shows an ultralow detection limit of 10−10 M and a linear detection of organic pesticide molecules within 10−6–10−10 M, which is significantly lower than the EU Environmental Protection Agency regulation standards. The strategy of constructing ReS2/AuNPs composites would contribute to the development of highly sensitive and reliable SERS sensing platforms for food safety monitoring. [ABSTRACT FROM AUTHOR]

Published
2023
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34. W-Band MMIC PA With Ultrahigh Power Density in 100-nm AlGaN/GaN Technology

Author

Zhang Junyun, Wu Shaobing, Wang Weibo, and Gao Jianfeng

Subjects
010302 applied physics, Power gain, Power-added efficiency, Materials science, business.industry, Amplifier, 020206 networking & telecommunications, Gallium nitride, 02 engineering and technology, High-electron-mobility transistor, 01 natural sciences, Electronic, Optical and Magnetic Materials, chemistry.chemical_compound, chemistry, W band, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, Electrical and Electronic Engineering, business, Monolithic microwave integrated circuit, Power density
Abstract

A three-stage W-band GaN monolithic microwave integrated circuit power amplifier (MMIC PA) is reported. Electron-beam lithography has been employed to define a 100-nm T-shaped gate on the AlGaN/GaN HEMT structure with ultrahigh aluminum content. The MMIC PA offers a peak small signal gain of 16.7 dB in the 90–97 GHz bandwidth. Moreover, it achieves a peak 1.66-W (32.2 dBm) output power at 93 GHz in a continuous-wave mode, with an associated power added efficiency of 21% and an associated power gain of 13.7 dB. Most notably, the peak power density is 3.46 W/mm with a 480- $\mu \text{m}$ wide output stage, which exceeds 3 W/mm in AlGaN/GaN HEMT at W-band for the first time.

Published
2016
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41. W-band AlGaN/GaN MMIC PA with 3.1W output power

Author

Guo Fangjin, Huang Nianning, Wu Shaobing, Chen Tangsheng, Gao Jianfeng, Wang Weibo, and Li Zhonghui

Subjects
010302 applied physics, Power gain, Materials science, business.industry, 020206 networking & telecommunications, Algan gan, 02 engineering and technology, High-electron-mobility transistor, 01 natural sciences, Power (physics), W band, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, business, Lithography, Monolithic microwave integrated circuit, Power density
Abstract

A balanced four-stage W-band GaN MMIC PA with Lange couplers and micro-strips matching elements is reported. Electron-beam lithography has been used to produce a 100 nm T-shaped gate on the AlGaN/GaN HEMT structure with ultrahigh aluminum content. The MMIC PA offers a small signal gain of greater than 18 dB and an output power of greater than 2.5W from 88GHz to 93GHz with an associated power gain of greater than 15 dB. Moreover, it achieves a peak output power of 3.1W (34.9dBm) at 91GHz in continuous-wave mode, with an associated power density of 3.23W/mm. Most notably, it is the first time that the peak output power and power density exceed 3W and 3W/mm in AlGaN/GaN HEMT at W-band simultaneously.

Published
2017
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45. The Research of Information Filtering Technology Based on Bayesian Network

Author

Wu Shaobing, Zhao Qingshan, Jia Xueming, and Cui Ying

Subjects
Computer science, business.industry, Probabilistic logic, Bayesian network, Probabilistic reasoning, Filter (signal processing), Recommender system, Machine learning, computer.software_genre, Information filtering, Variable-order Bayesian network, Component (UML), component, Collaborative filtering, General Earth and Planetary Sciences, Artificial intelligence, Data mining, business, computer, Information filtering system, General Environmental Science
Abstract

Information filtering research is currently a hot topic. The screening and filter information is for information according to the predetermined standard classification. The paper gives a use of Bayesian network method for information on the objective of classification, thereby, make the information filtering accuracy obtained improve greatly.

Published
2011
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46. The Study of Second-degree Professional 'Police Information System Application' Based on Course Teaching and Reform

Author

Zhao Qingshan, Wu Shaobing, Jia Xueming, and Cui Ying

Subjects
Engineering management, Medical education, ComputingMilieux_THECOMPUTINGPROFESSION, ComputingMilieux_COMPUTERSANDEDUCATION, Information system, General Earth and Planetary Sciences, Public information system, teaching reform, Psychology, Degree (music), teaching, General Environmental Science, Course (navigation)
Abstract

“Police Information System Application” is the second degree a required professional courses. The students who have graduated from university or college, have already studied the basic computer. How to teach Police Information System Application for them, we had a positive Exploration and Research. This is our teaching in this course of exploration and research.

Published
2011
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50. Tracing of dye molecules in living plants through NaGdF4:Yb3+,Er3+fluorescent nanoprobes

Author

Wu, Xiaofeng, Zhang, Ya′nan, Zhan, Shiping, Li, Jin, Nie, Guozheng, Hu, Shigang, Yan, Cong, Wu, Shaobing, Cheng, Shengbin, Hu, Junshan, Shi, Lichun, and Liu, Yunxin

Abstract

In this paper, we demonstrated trace of dye molecules in living plants. The NaGdF4:Yb3+,Er3+nanoparticles probe was used to detect the rhodamine B (RhB) in bean sprout. It is found that the fluorescencedye can be efficiently imbibed during the growing process and the absorbance presented a position dependence effect, which was supported by the upconversion spectra and the fluorescent image characterization. In addition, the concentration of the residual RhB in bean sprout can be efficiently traced by the synthesized probe based on the fluorescent resonant energy transfer. Finally, the relation between the excitation power, concentration and the ratio of yellow to green emission are discussed in detail. These results can be helpful in understanding the RhB dye molecules absorbance process in vegetable growth and provide an efficient way to trace the residual dyes in vivoplant.

Published
2019
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