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Journal Article 12

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2022 2

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Balanced bandpass filter (BPF) 1

Bandwith allocation 1

Common mode (CM) 1

Cyclic prefix (CP) 1

Differential mode (DM) 1

Fast Fourier transform (FFT) 1

Federated edge learning 1

Input-reflectionless filter 1

Inter carrier interference (ICI) 1

Inter symbol interference (ISI) 1

Maximum likelihood estimation (MLE) 1

Orthogonal frequency division multiplexing (OFDM) 1

PI controller 1

Quantization optimization 1

Three-line coupled structure (TLCS) 1

Training time minimization 1

adsorption behaviour 1

algorithm 1

anchoring groups 1

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The Secondary Web of Knowledge Embodiment

Li Youping

Strategic Study of CAE 2002, Volume 4, Issue 8,   Pages 8-11

Abstract: Due to the nature of the Internet,i.e. accessing with potential collisions, however, bandwidth bottleneckTherefore, due to the avoidance of the information access collision, the secondary web eliminates the bandwidthbottleneck that the primary web is facing and efficiently filters out information garbage as well.

Keywords： world wide web     secondary web     semanteme of content     bandwidth bottleneck    

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High-bandwidth nanopositioning via active control of system resonance

Linlin LI, Sumeet S. APHALE, Limin ZHU

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 331-339 doi: 10.1007/s11465-020-0619-x

Abstract: Typically, the achievable positioning bandwidth for piezo-actuated nanopositioners is severely limitedHowever, in almost all these cases, the achievable closed-loop bandwidth is still limited by the originalShifting this resonance to a higher frequency would undoubtedly result in a wider bandwidth.the resonant frequency of a nanopositioner’s axis, thereby delivering a wider closed-loop positioning bandwidthIt is shown that by employing the active resonance shifting, the closed-loop positioning bandwidth is

Keywords： nanopositioning stage     high-bandwidth     resonant mode control     tracking control     integral resonant control    

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Unravelling the bottleneck of phosphonic acid anchoring groups aiming toward enhancing the stability

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7,   Pages 1060-1078 doi: 10.1007/s11705-021-2117-z

Abstract: Novel near-infrared sensitizers with different anchoring groups aiming toward improved stability and efficiency of dye-sensitized solar cells were synthesized. Adsorption of these dyes on the mesoporous TiO2 surface revealed the dye adsorption rate of –CH=CH–COOH (SQ-139)>–CH=C(CN)COOH (SQ-140)>–PO3H2 (SQ-143)>–CH=C(CN)PO3H2 (SQ-148)>–CH=C(CN)PO3H–C2H5 (SQ-157)>–PO3H–C2H5 (SQ-151)>–CH=CH–COOH(–PO3H2) (SQ-162). The binding strength of these dyes on mesoporous TiO2 as investigated by dye desorption studies follows SQ-162>SQ-143>SQ-148>SQ-139>SQ-157~SQ-151>SQ-140 order. The acrylic acid anchoring group was demonstrated to be an optimum functional group owing to its fast dye adsorption rate and better binding strength on TiO2 along with good photoconversion efficiency. Results of dye binding on TiO2 surface demonstrated that SQ-162 bearing double anchoring groups of phosphonic and acrylic acid exhibited>550 times stronger binding as compared to dye SQ-140 having cyanoacrylic acid anchoring group. SQ-140 exhibited the best photovoltaic performance with photon harvesting mainly in the far-red to near-infrared wavelength region having short circuit current density, open-circuit voltage and fill factor of 14.28 mA·cm–2, 0.64 V and 0.65, respectively, giving the power conversion efficiency of 5.95%. Thus, dye SQ-162 not only solved the problem of very poor efficiency of dye bearing only phosphonic acid while maintaining the extremely high binding strength opening the path for the design and development of novel near-infrared dyes with improved efficiency and stability by further increasing the π-conjugation.

Keywords： anchoring groups     adsorption behaviour     dye-binding strength     squaraine dyes     dye-sensitized solar cells    

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Bandwidth-limited active suspension controller for an off-road vehicle based on co-simulation technology

FENG Jinzhi, ZHENG Songlin, YU Fan

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 111-117 doi: 10.1007/s11465-008-0020-7

Abstract: This paper presents the design process of a controller for bandwidth-limited active hydro-pneumatic suspensionSecond, a combined PID and fuzzy controller is designed for the bandwidth-limited active suspension system

Keywords： co-simulation technology     exchange interface     conventional     bandwidth-limited     algorithm    

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An approach to bandwidth management based on fuzzy logic

Li Zuxin,Wang Wanliang,Lei Bicheng,Chen Huiying

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 104-111

Abstract: can be further improved.Moreover,the upper and lower bound of the assignable bandwidth,which guaranteeresource conditions.Finally, normalizable criterions of the quality of control (QoC) and requirement of bandwidthOn those criterions, the proposed algorithm, namely fuzzy bandwidth management (FBM) , and traditionalfixed bandwidth allocation (FBA) are compared.simulation highlight that the proposed algorithm can significantly improve performance and save more bandwidth

Keywords： fuzzy bandwidth management     networked control systems     quality of control     requirement ofbandwidth    

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Development Strategies of Industrial Software for Digital Design

Gao Liang , Li Peigen , Huang Pei , Yang Zhen , Gao Jie

Strategic Study of CAE 2023, Volume 25, Issue 2,   Pages 254-262 doi: 10.15302/J-SSCAE-2023.07.017

Abstract:

Industrial software for digital design is a mainstay of industrial software and the foundation for intelligent manufacturing; however, a large gap exists between relevant domestic industries and the international frontier. Therefore, it is urgent to improve these software to support China’s manufacturing sector to enter the international advanced ranks. This study explores the significance of the industrial software for digital design, reviews the development status of industrial software in China and abroad, and analyzes the challenges faced by related industries in China. Key breakthrough directions are summarized, including seamless integration of structural computer-aided design/computer-aided engineering software and optimization software; design, analysis, and optimization integrated software driven by geometric features; simulation calculation and analysis featuring multi-body, multi-state, and multiphysical field coupling; cloudification and customization of industrial software; and heterogeneous parallel computing supported by algorithm strategies. Furthermore, we propose the following suggestions: (1) sorting out subdivided areas and formulating targeted industry support policies, (2) encouraging software enterprises to draw on each other’s strengths and formulating unified domestic standards, (3) providing targeted support for small- and medium-sized enterprises to expand their customer market, (4) mproving personnel training programs to gather high-end research staff, and (5) strengthening basic research and exploiting the advantages of domestic innovation market.
 

Keywords： industrial software     digital design     intelligent manufacturing     industrial bottleneck     breakthrough direction    

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Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 55-65 doi: 10.1007/s11465-019-0545-y

Abstract: parameter design approach for an FSM system based on the quantitative analysis of the required closed-loop bandwidthThe gains of the PI controller are determined by maximizing the closed-loop bandwidth while ensuringof rotational radius and stiffness in the open-loop transfer function are optimized, considering the bandwidthExperimental results indicate that the bandwidth of the proposed FSM system is 117.6 Hz, which satisfiesthe minimum bandwidth requirement of 100 Hz.

Keywords： fast-steering mirror     structural parameter     PI controller     bandwidth     notch filter    

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The Manufacturing Power Evaluation Index System: Optimization and Research

Zhao Qiang,Wu Jinjun,Xia Peng,Wang Di,Liu Dan,Liu Yun and Dong Han

Strategic Study of CAE 2017, Volume 19, Issue 3,   Pages 13-19 doi: 10.15302/J-SSCAE-2017.03.003

Abstract:

This paper focuses on the optimization of the data source, computing mode, and index classification of the manufacturing power evaluation index system. These authors carried out an in-depth analysis of the annual index evaluation and analyzed development trends in the manufacturing industry. This paper also forecasts a comprehensive index of manufacturing powers in 2016 and summarizes development trends over the past five years. The research results provide a useful reference for the development of the manufacturing industry in China.

Keywords： index system     optimization     index evaluation     bottleneck analysis    

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A dual-polarized Fabry–Pérot antenna with high gain and wide bandwidth for millimeter-wave applications

Qingyi Guo, Hang Wong,guo_qingyi@163.com,hang.wong@cityu.edu.hk

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4,   Pages 599-608 doi: 10.1631/FITEE.2000514

Abstract: a Fresnel zone lens are suggested to realize dual-polarization wave radiation over a wide impedance bandwidthThe impedance matching bandwidth for the two polarizations is 14%.

Keywords： 双极化；法布里—珀罗腔天线；与菲涅耳带透镜集成的部分反射面；毫米波波段；高增益；宽带    

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Training time minimization for federated edge learning with optimized gradient quantization and bandwidth Research Article

Peixi LIU, Jiamo JIANG, Guangxu ZHU, Lei CHENG, Wei JIANG, Wu LUO, Ying DU, Zhiqin WANG,jiangjiamo@caict.ac.cn,gxzhu@sribd.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 8,   Pages 1247-1263 doi: 10.1631/FITEE.2100538

Abstract: Constrained by the total bandwidth, the problem is formulated as a joint quantization level and bandwidthalternatively solves the subproblem of through successive convex approximation and the subproblem of bandwidth

Keywords： Federated edge learning     Quantization optimization     Bandwith allocation     Training time minimization    

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Compact input-reflectionless balanced bandpass filter with flexible bandwidth using three-line coupled Research Article

Yahui ZHU, Jing CAI, Wei QIN, Wenwen YANG, Jianxin CHEN

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 2,   Pages 314-326 doi: 10.1631/FITEE.2200261

Abstract: A compact input-reflectionless with flexible bandwidth (BW) using a is presented in this paper.The DM center frequency () is 2.45 GHz with a measured 3 dB fractional bandwidth of 31.4%.rejection level up to 2.72), and wideband DM reflectionless and CM noise absorption (fractional absorption bandwidth

Keywords： Input-reflectionless filter     Balanced bandpass filter (BPF)     Differential mode (DM)     Common mode (CM)     Three-line coupled structure (TLCS)    

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A novel energy-efficient ICI cancellation technique for bandwidth improvements through cyclic prefix Article

Sandeep SAROWA, Harmanjeet SINGH, Sunil AGRAWAL, B. S. SOHI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1892-1899 doi: 10.1631/FITEE.1601333

Abstract: promising technique that is leading the evolution in wireless mobile communication to sideline the bandwidthIn this study, a new energy-efficient, bandwidth-effective technique is proposed to mitigate ICI throughthe transmitter end, the proposed technique uses the CP data (which is only 20% of the total symbol bandwidth) to estimate the channel, and it produces similar results with a huge bandwidth saving.and a comparative analysis demonstrates the substantial improvement in energy efficiency with high bandwidth

Keywords： Orthogonal frequency division multiplexing (OFDM)     Fast Fourier transform (FFT)     Cyclic prefix (CP)     Inter symbol interference (ISI)     Inter carrier interference (ICI)     Maximum likelihood estimation (MLE)    

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Title Author Date Type Operation

The Secondary Web of Knowledge Embodiment

Li Youping

Journal Article

High-bandwidth nanopositioning via active control of system resonance

Linlin LI, Sumeet S. APHALE, Limin ZHU

Journal Article

Unravelling the bottleneck of phosphonic acid anchoring groups aiming toward enhancing the stability

Journal Article

Bandwidth-limited active suspension controller for an off-road vehicle based on co-simulation technology

FENG Jinzhi, ZHENG Songlin, YU Fan

Journal Article

An approach to bandwidth management based on fuzzy logic

Li Zuxin,Wang Wanliang,Lei Bicheng,Chen Huiying

Journal Article

Development Strategies of Industrial Software for Digital Design

Gao Liang , Li Peigen , Huang Pei , Yang Zhen , Gao Jie

Journal Article

Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Journal Article

The Manufacturing Power Evaluation Index System: Optimization and Research

Zhao Qiang,Wu Jinjun,Xia Peng,Wang Di,Liu Dan,Liu Yun and Dong Han

Journal Article

A dual-polarized Fabry–Pérot antenna with high gain and wide bandwidth for millimeter-wave applications

Qingyi Guo, Hang Wong,guo_qingyi@163.com,hang.wong@cityu.edu.hk

Journal Article

Training time minimization for federated edge learning with optimized gradient quantization and bandwidth

Peixi LIU, Jiamo JIANG, Guangxu ZHU, Lei CHENG, Wei JIANG, Wu LUO, Ying DU, Zhiqin WANG,jiangjiamo@caict.ac.cn,gxzhu@sribd.cn

Journal Article

Compact input-reflectionless balanced bandpass filter with flexible bandwidth using three-line coupled

Yahui ZHU, Jing CAI, Wei QIN, Wenwen YANG, Jianxin CHEN

Journal Article

A novel energy-efficient ICI cancellation technique for bandwidth improvements through cyclic prefix

Sandeep SAROWA, Harmanjeet SINGH, Sunil AGRAWAL, B. S. SOHI

Journal Article