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80 results on '"Jia, Shuwen"'

1. Glaucoma Rehabilitation using ElectricAI Transcranial Stimulation (GREAT)—study protocol for randomized controlled trial using combined perceptual learning and transcranial electrical stimulation for vision enhancement

Author

Jia, Shuwen, Mei, Xiaolin, Chen, Lilin, Chan, Lok Hin, Tsang, Celia, Suen, Venus, Li, Tingni, Zaw, Myo Win, Liu, Amanda, Thompson, Ben, Sabel, Bernhard, Woo, George, Leung, Christopher K. S., Yip, Shea-ping, Chang, Dorita H. F., and Cheong, Allen M. Y.

Published
2024
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9. Research on Short-Term Flow Forecast of Intelligent Traffic

Author

Yang, Tingting, Jia, Shuwen, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Sun, Xingming, editor, Zhang, Xiaorui, editor, Xia, Zhihua, editor, and Bertino, Elisa, editor

Published
2021
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10. Research on Stock Price Forecasting Based on BP Neural Network

Author

Jia, Shuwen, Yang, Tingting, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Sun, Xingming, editor, Zhang, Xiaorui, editor, Xia, Zhihua, editor, and Bertino, Elisa, editor

Published
2021
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15. Research on Artificial Intelligence Technology in Computer Network Technology

Author

Yang, Tingting, Jia, Shuwen, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Sun, Xingming, editor, Pan, Zhaoqing, editor, and Bertino, Elisa, editor

Published
2019
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17. Research on Image Classification of Marine Pollutants with Convolution Neural Network

Author

Yang, Tingting, Jia, Shuwen, Zhang, Huanhuan, Zhou, Mingquan, 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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20. Electron transfer coupled spin transition in cyano-bridged mixed-valence {FeIII2FeII2} molecular squares.

Author

Jia, Shuwen, Shang, Mengjia, Jin, Sai, Zhu, Xinrui, Cai, Yuanyuan, and Li, Dongfeng

Subjects
*SPIN crossover, *CHARGE exchange, *VALENCE fluctuations, *TRANSITION metal ions, *MAGNETIC measurements
Abstract

The research on electron transfer coupled spin transition regulating the valence state and spin state transition of metal ions is promising and challenging. Herein, we report a cyano-bridged {Fe III2 Fe II2 } molecular square complex, {[Fe(Tp)(CN)3]2 [Fe(bnbpen)]2}(ClO4)2·8CH3OH (1·8CH3OH, bnbpen = N,N′-bis-(2-naphthylmethyl)-N,N′-bis(2-picolayl)-ethylenediamine), and its free of solvents form (1). Combined single-crystal X-ray diffraction, temperature-dependent infrared (IR) spectra, magnetic measurements, and Mössbauer spectra reveal that 1·8CH3OH and 1 exhibit reversible one-step and two-step electron transfer coupled spin transition (ETCST) with temperature change, between the low-temperature state {FeII,LS(μ-CN)FeIII,LS}2 (LS = low spin, HS = high spin) and the high-temperature state {FeIII,LS(μ-CN)FeII,HS}2, respectively. [ABSTRACT FROM AUTHOR]

Published
2024
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23. Observation of protonation-induced intra-molecular metal-to-metal charge transfer in cyano-bridged [Fe–CN–Mn/Ni] dinuclear complexes.

Author

Jia, Shuwen, Zhu, Xinrui, and Li, Dongfeng

Subjects
*INTRAMOLECULAR charge transfer, *PROTON transfer reactions, *SINGLE molecule magnets, *ACID solutions, *METAL complexes, *CHARGE transfer
Abstract

A key challenge in the design of magnetic molecules with intramolecular charge transfer behavior is to obtain reversible magnetic bistability triggered by external stimuli. Here, we show that two dinuclear metal complexes, [(bbp)Fe(CN)3Mn(Py5Me2)]·2.5CH3OH (4) and [(bbp)Fe(CN)3Ni(Py5Me2)]·2.5CH3OH (5) (Py5Me2 = 2,6-bis(1,1-di(pyridine-2-yl)ethyl)pyridine, H2bbp = 2,6-bis(benzimidazole-2-yl)pyridine), were self-assembly synthesized by (Bu4N)2[(bbp)FeIII(CN)3] and [Mn(Py5Me2)(OH2)](ClO4)2 or [Ni(Py5Me2)(OH2)](ClO4)2, respectively. Complexes 4 and 5 exhibited intramolecular metal-to-metal charge transfer with the addition of acids or bases in solution by UV–visible spectrophotometric measurements and electrochemistry studies, and concomitant switching of the {FeIII(μ-CN)MnII/NiII} state to the {FeII(μ-CN)MnIII/NiIII} state. [ABSTRACT FROM AUTHOR]

Published
2023
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25. Evaluation Method of Higher Education Teaching Reform Based on Deep Learning Analysis Technology

Author

Angeli, Charoula, Zhang, Taolin, and Jia, Shuwen

Abstract

Considering the shortcomings of large evaluation errors, long time, human, and material resources in the evaluation process of the current college teaching mode to improve the accuracy of the evaluation of college teaching mode and reduce the cost of the evaluation, this study proposes an evaluation method for college teaching methods based on deep learning algorithms. Firstly, the research status of the evaluation of college teaching mode is analyzed, and the reasons for the poor evaluation results of the current college teaching mode are found; then the existing deep learning algorithm is improved, and the effectiveness and speed of the method are verified by comparing with other models. Then, the evaluation model of college teaching mode is established, and machine learning is performed on the evaluation data of college teaching mode; finally, the evaluation data of college teaching mode is collected, and the application example test of college teaching mode evaluation is performed.

Published
2023
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26. Construction and Implementation of Application-Oriented Undergraduate Teaching and Teaching Evaluation System Based on Multiple Information Fusion

Author

Zhang, Taolin and Jia, Shuwen

Abstract

At present, many schools implement teaching quality evaluation systems with student performance and practical activities as the core data of evaluation. Based on the introduction of the training objectives and discipline nature of the information management and information system specialty, this paper analyzes the construction principles of the multi-disciplinary curriculum system of the specialty and puts forward relevant countermeasures for the construction of the multi-disciplinary education system. This paper introduces the definition of practical teaching evaluation system and teaching evaluation algorithm. Among them, naive Bayesian algorithm can improve the sample accuracy by 95%, so it is necessary to build an application-oriented undergraduate practice teaching evaluation system.

Published
2023
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34. Mixed-valence {FeII2FeIII4} hexanuclear complexes with thermally induced Fe(III) spin-crossover behavior.

Author

Jia, Shuwen, Fan, Lingyue, Zheng, Chunyang, Jin, Sai, and Li, Dongfeng

Subjects
*MAGNETIC measurements, *MAGNETIC susceptibility, *PYRAZOLYL compounds, *BORATES, *AMINES, *ETHANOL
Abstract

Cyano-bridged mixed-valence {Fe6} hexanuclear complexes {[Tp4-MeFeII(CN)3]2[FeIII(Tpa)]2[FeIII(OR)(Tpa)]2}·6ClO4·S (Tp4-Me = tri(4-methyl-pyrazol-1-yl)borate, Tpa = tris(2-pyridylmethyl)amine; R = –CH3, S = 8MeOH 1, R = –C2H5, S = 6EtOH 2) have been obtained by building the units of [Tp4-MeFe(CN)3]− and [Fe(Tpa)]2+ in methanol and ethanol, respectively. Complex 1 exhibited single-crystal-to-single-crystal (SCSC) transformation to give {[Tp4-MeFeII(CN)3]2[FeIII(Tpa)]2[FeIII(OH)(Tpa)]2}·6ClO4·8H2O (3) in water. Detailed analysis of the coordination environment of the FeIII centers on the square lattice and magnetic susceptibility measurements of all the complexes confirmed their Fe3+ spin-crossover (SCO) properties (T1/2 = 178 K, 1; 185 K, 2; 208 K, 3). [ABSTRACT FROM AUTHOR]

Published
2022
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46. DC-DC converter group with large output current based on digital control

Author

Jia Shuwen, Cheng Hongli, Liu Jian, and Wang Li

Subjects
Control theory, Computer science, Buck converter, Control (management), Value (computer science), Digital control, Current (fluid), Converters, Voltage
Abstract

To benefit the parallel current balancing, a novel digital control strategy, i.e., the current following control, is put forward. A current following control based Buck DC-DC converter-group is described. The main controller collect the output voltage and the output current in the real time, based on which, the desired output current for each Buck DC-DC converter is worked out and transferred to the corresponding sub-controller. The sub-controller regulates the output current of the converter to the desired value by using the current following control. Experiment and simulation results are given showing the feasibility and effectiveness of the proposed approach.

Published
2009

47. A current transformer feeding power supply for distribution automation systems

Author

Song Zhen, Cheng Hongli, Liu Jian, Zhang Juntao, and Jia Shuwen

Subjects
Isolation transformer, Engineering, Switched-mode power supply, business.industry, Electrical engineering, Volt-ampere, Energy efficient transformer, Topology (electrical circuits), Distribution transformer, business, Current transformer, Power (physics)
Abstract

To benefit the compact and insulation design of feeder switches, a current transformer feeding power supply is put forward. The non-linear behavior of the current transformer, the circuit topology and design considerations of the proposed power supply are detailed. Losses of the devices and the minimum primary current to ensure the performance of the power supply are analyzed, as well. Experiments are made on a current transformer feeding power supply, the results of which show that the suggested topology is feasible and the proposed approach is effective.

Published
2009

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