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Numerical Simulation of the Hyperbolic Mild Slope Equation

Tang Jun,Shen Yongming,Qiu Dahong

Strategic Study of CAE 2007, Volume 9, Issue 4,   Pages 70-74

Abstract:

The hyperbolic mild slope equation has been widely used as an effectivepaper, the grid system that collocated in time and staged in space has been used to discretize the hyperbolicmild slope equation and two examples have been used to validate the numerical model.that the numerical model used in the paper can be effectively used in the numerical simulation of the hyperbolicmild slope equation.

Keywords： wave model     hyperbolic mild slope equation     numerical simulation    

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Numerical Study on the Parabolic Mild-slope Equation

Shen Yongming,Zheng Yonghong,Wu Xiuguang

Strategic Study of CAE 2004, Volume 6, Issue 3,   Pages 30-35

Abstract:

Two kinds of parabolic mild-slope equations are studied systematically.These results can give some theoretical guidance to the applications of parabolic mild slope equations

Keywords： parabolic mild-slope equation     numerical study     wave    

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Numerical Simulation of Pollutants Movement in Coastal Surf Zone

Tang Jun,Shen Yongming and Qiu Dahong

Strategic Study of CAE 2007, Volume 9, Issue 12,   Pages 63-68

Abstract: Based on parabolic mild slope equation for wave propagating in mild slope zones, the nearshore currents

Keywords： parabolic mild slope equation     surf zone     wave radiation stress     longshore currents     pollutants    

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including double antibiotic scaffolds: synthesis, simulation and adsorption for anticorrosion effect on mild

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2,   Pages 167-182 doi: 10.1007/s11705-022-2199-2

Abstract: computation revealed that TCs presented smaller HOMO-LUMO energy gaps and larger binding energy levels on mildThe anticorrosion of the studied compounds for mild steel in HCl solution was investigated by electrochemistry

Keywords： branched compounds     floxacin scaffold     mild steel     anticorrosion     environmentally benign    

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Selective epoxidation of linear terminal olefins with metalloporphyrins under mild conditions

Xiaoguang BAI, Yuanbin SHE

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 310-313 doi: 10.1007/s11705-009-0168-7

Abstract: The epoxidation of linear terminal olefins with metalloporphyrins in the presence of dioxygen and isobutyraldehyde under ambient temperature and atmospheric pressure was investigated. The results show that all olefins could be smoothly converted to epoxides with high selectivities (70%-90%). For the metalloporphyrins with different catalytic activities within 1-hexene epoxidation in the order of Fe>Mn>Co, T( -Cl)PPFe(Ⅲ)Cl was most effective, with a 41.7% yield and 80.2% selectivity of 1,2-epoxyhexane. Various amounts of catalyst were investigated, and it was found that with only 10 ppm catalyst the yield of 1,2-epoxyhexane and turnover number (TON) could reach up to 41.9% and 41859, respectively.

Keywords： metalloporphyrins     olefins     dioxygen     epoxidation    

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Solvent-free mechanochemical mild oxidation method to enhance adsorption properties of chitosan

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1416-4

Abstract:

• Solvent-free chitosan oxidation is obtained by rapid mechanochemical reaction.

Keywords： Chitosan     High energy ball milling     Mechanochemistry     Oxidation    

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Bioengineering protection mechanism of city rock slope and its laboratory test

Desong JIANG, Minghua ZHAO, Chong JIANG,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 414-421 doi: 10.1007/s11709-009-0055-9

Abstract: Based on the features of rock slope bioengineering protection, the ecology protection mechanism of theurban rock slope was discussed with the mechanics effect of plants and rock slope, and the reinforcementaction mechanism of rock slope by plant root system was analyzed as well.Moreover, the side slope rainfall interception, the runoff lagging, the soil antiseepage, and the soilThe antiwashing capability per unit area has a critical slope angle of about 25°.

Keywords： indoor     engineering project     protection mechanism     different     runoff lagging    

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Controllable synthesis of a large TS-1 catalyst for clean epoxidation of a C=C double bond under mild

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 772-783 doi: 10.1007/s11705-022-2280-x

Abstract: crystallinity and a four-coordinate Ti framework is critical for efficient catalytic oxidation reaction under mild

Keywords： size-controlled TS-1     crystal modifier     steam-assisted crystallization     epoxidation    

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Efficiency of scalar and vector intensity measures for seismic slope displacements

Gang WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 44-52 doi: 10.1007/s11709-012-0138-x

Abstract: Although no single intensity measure is efficient enough for all slope conditions, the spectral accelerationat 1.5 times of the initial slope period and Arias intensity of the input motion are found to be thecharacteristics of the ground motion and thus significantly improve the efficiency over a wide range of slopethe spectral accelerations at multiple spectral periods achieve high efficiency for a wide range of slopeprediction models as well as the ground motion selection criteria for time domain analysis of seismic slope

Keywords： seismic slope displacements     intensity measures     empirical prediction    

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Evaluation and prediction of slope stability using machine learning approaches

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 821-833 doi: 10.1007/s11709-021-0742-8

Abstract: In this paper, the machine learning (ML) model is built for slope stability evaluation and meets thehigh precision and rapidity requirements in slope engineering.of this study includes six characteristics, namely unit weight, cohesion, internal friction angle, slopeangle, slope height, and pore water pressure ratio.Also, the SVM-poly method is used to analyze the susceptibility of slope parameters.

Keywords： slope stability     factor of safety     regression     machine learning     repeated cross-validation    

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Regenerative braking control strategy in mild hybrid electric vehicles equipped with automatic manual

QIN Datong, YE Ming, LIU Zhenjun

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 364-369 doi: 10.1007/s11465-007-0064-0

Abstract: To recover the vehicle s kinetic energy maximally, braking shift rules for a mild hybrid electric vehicle

Keywords： SOC     Braking     battery     regenerative braking     starter/generator    

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Research on New Technology for Sandy Slope Safety Protection

Niu Xiaodi,Yang Guangqing and Liu Weichao

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 86-91 doi: 10.15302/J-SSCAE-2017.06.013

Abstract: TD-1 can be used with soil spraying technology for slope greening protection, and the solidified product

Keywords： sandy slope     sand consolidation agent     laboratory tests     field tests    

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Liquid discharge plasma for fast biomass liquefaction at mild conditions: The effects of homogeneous

Sen Wang, Shiyun Liu, Danhua Mei, Rusen Zhou, Congcong Jiang, Xianhui Zhang, Zhi Fang, Kostya (Ken) Ostrikov

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 763-771 doi: 10.1007/s11705-019-1896-y

Abstract: Non-thermal plasma exhibits unique advantages in biomass conversion for the sustainable production of higher-value energy carriers. Different homogeneous catalysts are usually required for plasma-enabled biomass liquefaction to achieve time-and energy-efficient conversions. However, the effects of such catalysts on the plasma-assisted liquefaction process and of the plasma on those catalysts have not been thoroughly studied. In this study, an electrical discharge plasma is employed to promote the direct liquefaction of sawdust in a mixture of polyethylene glycol 200 and glycerol. Three commonly used chemicals, sulfuric acid, nitric acid and sodium -toluene sulfate, were selected as catalysts. The effects of the type of catalyst and concentration on the liquefaction yield were examined; further, the roles of the catalysts in the plasma liquefaction process have been discussed. The results showed that the liquefaction yield attains a value of 90% within 5 min when 1% sulfuric acid was employed as the catalyst. Compared with the other catalysts, sulfuric acid presents the highest efficiency for the liquefaction of sawdust. It was observed that hydrogen ions from the catalyst were primarily responsible for the significant thermal effects on the liquefaction system and the generation of large quantities of active species; these effects directly contributed to a higher efficacy of the plasma-enabled liquefaction process.

Keywords： discharge plasma     biomass liquefaction     catalyst     homogeneous catalysts    

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Optimal CNN-based semantic segmentation model of cutting slope images

Mansheng LIN; Shuai TENG; Gongfa CHEN; Jianbing LV; Zhongyu HAO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 414-433 doi: 10.1007/s11709-021-0797-6

Abstract: convolutional network (FCN), and U-Net to qualitively analyze and identify the key components of cutting slopeimages in complex scenes and achieve rapid image-based slope detection.The elements of cutting slope images are divided into 7 categories.In order to determine the best algorithm for pixel level classification of cutting slope images, the

Keywords： slope damage     image recognition     semantic segmentation     feature map     visualizations    

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Dynamic characteristics of a magnetorheological pin joint for civil structures

Yancheng LI,Jianchun LI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 15-33 doi: 10.1007/s11465-014-0283-0

Abstract: A computationally-efficient model is proposed by introducing a hyperbolic element to accurately reproduce

Keywords： Magnetorheological pin joint     hyperbolic hysteresis model experimental testing frequency dependence    

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Title Author Date Type Operation

Numerical Simulation of the Hyperbolic Mild Slope Equation

Tang Jun,Shen Yongming,Qiu Dahong

Journal Article

Numerical Study on the Parabolic Mild-slope Equation

Shen Yongming,Zheng Yonghong,Wu Xiuguang

Journal Article

Numerical Simulation of Pollutants Movement in Coastal Surf Zone

Tang Jun,Shen Yongming and Qiu Dahong

Journal Article

including double antibiotic scaffolds: synthesis, simulation and adsorption for anticorrosion effect on mild

Journal Article

Selective epoxidation of linear terminal olefins with metalloporphyrins under mild conditions

Xiaoguang BAI, Yuanbin SHE

Journal Article

Solvent-free mechanochemical mild oxidation method to enhance adsorption properties of chitosan

Journal Article

Bioengineering protection mechanism of city rock slope and its laboratory test

Desong JIANG, Minghua ZHAO, Chong JIANG,

Journal Article

Controllable synthesis of a large TS-1 catalyst for clean epoxidation of a C=C double bond under mild

Journal Article

Efficiency of scalar and vector intensity measures for seismic slope displacements

Gang WANG

Journal Article

Evaluation and prediction of slope stability using machine learning approaches

Journal Article

Regenerative braking control strategy in mild hybrid electric vehicles equipped with automatic manual

QIN Datong, YE Ming, LIU Zhenjun

Journal Article

Research on New Technology for Sandy Slope Safety Protection

Niu Xiaodi,Yang Guangqing and Liu Weichao

Journal Article

Liquid discharge plasma for fast biomass liquefaction at mild conditions: The effects of homogeneous

Sen Wang, Shiyun Liu, Danhua Mei, Rusen Zhou, Congcong Jiang, Xianhui Zhang, Zhi Fang, Kostya (Ken) Ostrikov

Journal Article

Optimal CNN-based semantic segmentation model of cutting slope images

Mansheng LIN; Shuai TENG; Gongfa CHEN; Jianbing LV; Zhongyu HAO

Journal Article

Dynamic characteristics of a magnetorheological pin joint for civil structures

Yancheng LI,Jianchun LI

Journal Article