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PSD Analysis on Track Irregularity of Railway Linefor Passenger Transport

Chen Xiufang,Jin Shouhua,Zeng Hualiang

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 56-59

Abstract: used to evaluate the spectrum of the statistical sample space, and MATLAB soft was used to get the PSD(powerspectral sensity) of track irregularities.

Keywords： railway line for passenger transport     track irregularity     power spectral density     stationary character    

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Control efficiency optimization and Sobol’s sensitivity indices of MTMDs design parameters for buffeting and flutter vibrations in a cable stayed bridge

Nazim Abdul NARIMAN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 66-89 doi: 10.1007/s11709-016-0356-8

Abstract: This paper studies optimization of three design parameters (mass ratio, frequency ratio and damping ratio) of multiple tuned mass dampers MTMDs that are applied in a cable stayed bridge excited by a strong wind using minimax optimization technique. ABAQUS finite element program is utilized to run numerical simulations with the support of MATLAB codes and Fast Fourier Transform FFT technique. The optimum values of these three parameters are validated with two benchmarks from the literature, first with Wang and coauthors and then with Lin and coauthors. The validation procedure detected a good agreement between the results. Box-Behnken experimental method is dedicated to formulate the surrogate models to represent the control efficiency of the vertical and torsional vibrations. Sobol’s sensitivity indices are calculated for the design parameters in addition to their interaction orders. The optimization results revealed better performance of the MTMDs in controlling the vertical and the torsional vibrations for higher mode shapes. Furthermore, the calculated rational effects of each design parameter facilitate to increase the control efficiency of the MTMDs in conjunction with the support of the surrogate models.

Keywords： MTMDs     power spectral density     fast Fourier transform     minimax optimization technique     Sobol’s sensitivity    

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Fatigue Life Prediction of Long-Life Pavement Using Frequency-Domain Analysis

Wei Baoli,Guo Chengchao and Cui Can

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 80-85 doi: 10.15302/J-SSCAE-2017.06.012

Abstract: In this paper, it is proposed that the random power spectral density of the vehicle-road coupling vibration

Keywords： long-life pavement     fatigue life prediction     random vibration     power spectral density    

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Tripotassium citrate monohydrate derived carbon nanosheets as a competent assistant to manganese dioxide with remarkable performance in the supercapacitor

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 420-432 doi: 10.1007/s11705-021-2065-7

Abstract: and manganese dioxide/carbon nanosheets as the anode was assembled, achieving an outstanding energy densityof 54.68 Wh·kg–1 and remarkable power density of 6399.2 W·kg–1 superior to conventionalTwo assembled asymmetric supercapacitors in series charged for 3 min could power a yellow light emitting

Keywords： carbon nanosheets     manganese dioxide     asymmetric supercapacitors     energy density     power density    

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Investigation on available wind energy at Tungku beach

M. G. YAZDANI, M. A. SALAM

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 275-279 doi: 10.1007/s11708-012-0194-x

Abstract: The average generated power (forenoon and afternoon) is found to be 25 (mean) and 18 W (median), 101The power density for wind farming is found to be 0.26 (mean) and 0.19 (median), 0.31 (mean) and 0.22

Keywords： wind velocity     temperature     tower height     power density     Raleigh distribution     electrical power    

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Applying the spectral stochastic finite element method in multiple-random field RC structures

Abbas YAZDANI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 434-447 doi: 10.1007/s11709-022-0820-6

Abstract: This paper uses the spectral stochastic finite element method (SSFEM) for analyzing reinforced concrete

Keywords： uncertainty     spectral stochastic finite element method     correlation length     reliability assessment     reinforced    

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Fault feature extraction of planet gear in wind turbine gearbox based on spectral kurtosis and time wavelet

Yun KONG, Tianyang WANG, Zheng LI, Fulei CHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 406-419 doi: 10.1007/s11465-017-0419-0

Abstract: the fault feature of planet gear effectively, we propose a novel feature extraction method based on spectralFirstly, the spectral kurtosis (SK) and kurtogram of raw vibration signals are computed and exploited

Keywords： wind turbine     planet gear fault     feature extraction     spectral kurtosis     time wavelet energy spectrum    

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Assessment of wind energy potential in Gaza Strip

Juma Yousuf ALAYDI

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 297-304 doi: 10.1007/s11708-010-0134-6

Abstract: Gaza Strip in order to evaluate the wind regimes for installing wind energy conversion systems for powerThe vertical extrapolation was based on the power-law expression, and the wind energy and potential haveConsequently, the wind power is estimated by adoption of the Weibull distribution expression.

Keywords： wind data     wind resource assessment     wind power density     wind energy     the Weibull distribution and Weibull    

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Evaluation of the wind energy potential of two south west sites in Nigeria

Olaleye M. AMOO

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 237-246 doi: 10.1007/s11708-012-0201-2

Abstract: The wind power density variation based on the Weibull analysis ranges from 4.26 to 24.51 W/m for Abeokuta

Keywords： wind potential     wind speed     wind power density     wind gust     turbulence intensity     Nigeria    

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Viability of Harvesting Salinity Gradient (Blue) Energy by Nanopore-Based Osmotic Power Generation Article

Zhangxin Wang, Li Wang, Menachem Elimelech

Engineering 2022, Volume 9, Issue 2,   Pages 51-60 doi: 10.1016/j.eng.2021.02.016

Abstract: new technology for harvesting salinity gradient (blue) energy, namely nanopore powerWe show that although NPG membrane coupons can theoretically generate ultrahigh power density under idealconditions, the resulting power density in practical operations at a coupon scale can hardly reach 10&For module-scale NPG operation, we estimate both the power density and specific extractable energy (i.edensity (< 0.1 W·m−2).

Keywords： Nanopore power generator     Salinity gradient (blue) energy     Power density     Specific extractable energy    

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Development Status and Strategic Research of Graphene-Base Supercapacitors

Chen Jing, Guo Hongxia, Mao Weiguo, Liu Jianhong, Fu Yongsheng, Ouyang Xiaoping

Strategic Study of CAE 2018, Volume 20, Issue 6,   Pages 75-81 doi: 10.15302/J-SSCAE-2018.06.012

Abstract: advantages of both common capacitors and chemical batteries, and have significant advantages such as high powerdensity, fast charging & discharging speed, and long cycle life.

Keywords： graphene     supercapacitor     electrode material     power density     energy density    

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A Miniature Meta-Optical System for Reconfigurable Wide-Angle Imaging and Polarization-Spectral Detection

Fei Zhang,Minghao Liao,Mingbo Pu,Yinghui Guo,Lianwei Chen,Xiong Li,Qiong He,Tongtong Kang,Xiaoliang Ma,Yuan Ke,Xiangang Luo,

Engineering doi: 10.1016/j.eng.2023.07.008

Abstract: Wide-angle imaging and spectral detection play vital roles in tasks such as target tracking, object classificationproof-of-concept demonstration, the simultaneous implementation of wide-angle imaging and polarization-spectralThe proposed system supports the imaging (spectral) resolution of approximately 27.8 line-pairs per millimeter(lp·mm−1; ∼80 nm) for an imaging (spectral) mode from 8 to 14 μm.

Keywords： Metasurfaces     Reconfigurable     Imaging     Spectral    

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Spectral emittance measurements of micro/nanostructures in energy conversion: a review

Shiquan SHAN, Chuyang CHEN, Peter G. LOUTZENHISER, Devesh RANJAN, Zhijun ZHOU, Zhuomin M. ZHANG

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 482-509 doi: 10.1007/s11708-020-0693-0

Abstract: Among the various radiative properties, spectral emittance is of integral importance for the design andThis paper presents an overview of the spectral emittance measurement techniques using both the direct

Keywords： concentrating solar power (CSP)     emittance measurements     high temperature     micro/nanostructure     selective    

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Nongray radiation from gas and soot mixtures in planar plates based on statistical narrow-band spectral

Huaqiang CHU, Qiang CHENG, Huaichun ZHOU, Fengshan LIU

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 149-158 doi: 10.1007/s11708-010-0124-8

Abstract: Based on the statistical narrow-band (SNB) spectral model with an exponential-tailed inverse intensity

Keywords： soot     combustion     SNB model     nongray radiation    

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Application of spectral technology in flame measurement

Jiaxun LIU, Xiaoshu CAI, Zenghao ZHU, Huinan YANG

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 138-143 doi: 10.1007/s11708-013-0283-5

Abstract: Spectral technology has become an important detection method due to its advantages such as non-intrusiveIn this paper, two applications of spectral technology in thermal detection were proposed.

Keywords： spectrum     emissivity measurement     component of fuel     near-infrared spectrometer    

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Title Author Date Type Operation

PSD Analysis on Track Irregularity of Railway Linefor Passenger Transport

Chen Xiufang,Jin Shouhua,Zeng Hualiang

Journal Article

Control efficiency optimization and Sobol’s sensitivity indices of MTMDs design parameters for buffeting and flutter vibrations in a cable stayed bridge

Nazim Abdul NARIMAN

Journal Article

Fatigue Life Prediction of Long-Life Pavement Using Frequency-Domain Analysis

Wei Baoli,Guo Chengchao and Cui Can

Journal Article

Tripotassium citrate monohydrate derived carbon nanosheets as a competent assistant to manganese dioxide with remarkable performance in the supercapacitor

Journal Article

Investigation on available wind energy at Tungku beach

M. G. YAZDANI, M. A. SALAM

Journal Article

Applying the spectral stochastic finite element method in multiple-random field RC structures

Abbas YAZDANI

Journal Article

Fault feature extraction of planet gear in wind turbine gearbox based on spectral kurtosis and time wavelet

Yun KONG, Tianyang WANG, Zheng LI, Fulei CHU

Journal Article

Assessment of wind energy potential in Gaza Strip

Juma Yousuf ALAYDI

Journal Article

Evaluation of the wind energy potential of two south west sites in Nigeria

Olaleye M. AMOO

Journal Article

Viability of Harvesting Salinity Gradient (Blue) Energy by Nanopore-Based Osmotic Power Generation

Zhangxin Wang, Li Wang, Menachem Elimelech

Journal Article

Development Status and Strategic Research of Graphene-Base Supercapacitors

Chen Jing, Guo Hongxia, Mao Weiguo, Liu Jianhong, Fu Yongsheng, Ouyang Xiaoping

Journal Article

A Miniature Meta-Optical System for Reconfigurable Wide-Angle Imaging and Polarization-Spectral Detection

Fei Zhang,Minghao Liao,Mingbo Pu,Yinghui Guo,Lianwei Chen,Xiong Li,Qiong He,Tongtong Kang,Xiaoliang Ma,Yuan Ke,Xiangang Luo,

Journal Article

Spectral emittance measurements of micro/nanostructures in energy conversion: a review

Shiquan SHAN, Chuyang CHEN, Peter G. LOUTZENHISER, Devesh RANJAN, Zhijun ZHOU, Zhuomin M. ZHANG

Journal Article

Nongray radiation from gas and soot mixtures in planar plates based on statistical narrow-band spectral

Huaqiang CHU, Qiang CHENG, Huaichun ZHOU, Fengshan LIU

Journal Article

Application of spectral technology in flame measurement

Jiaxun LIU, Xiaoshu CAI, Zenghao ZHU, Huinan YANG

Journal Article