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Analysis of the Effect of Water and Fertilizer on Crop Production in Farmland of Arid Zone in Northern China

Gao Yajun,Li Shengxiu

Strategic Study of CAE 2002, Volume 4, Issue 7,   Pages 74-79

Abstract: It was showed that the water effect and fertilizer effect on crop production were related to experimentThe result obtained from field experiments was opposite to that from simulated experiments because the

Keywords： effect of water and N fertilizer     arid area in Northern China     field experiment     simulated experiment    

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Cu/Cr co-stabilization mechanisms in a simulated AlO-FeO-CrO-CuO waste system

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1408-4

Abstract:

• Cu and Cr can be mostly incorporated into CuFexAlyCr2−x−yO4 with a spinel structure.

Keywords： Spinel structure     Copper     Chromium     Co-stabilization     Thermal treatment    

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Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 722-731 doi: 10.1007/s11709-023-0950-5

Abstract: aim of this study is to appraise the potential of calcium sulfoaluminate (CSA) cement-based grouts in simulated

Keywords： permafrost     low temperatures     calcium sulfoaluminate cement-based grouts     hydration reaction     compressive strength    

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Prediction of cutting force in turning of UD-GFRP using mathematical model and simulated annealing

Meenu GUPTA, Surinder Kumar GILL

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 417-426 doi: 10.1007/s11465-012-0343-2

Abstract: unidirectional glass fiber reinforced plastics (UD-GFRP) composite using regression modeling and optimization by simulated

Keywords： UD-GFRP     ANOVA     radial cutting force     PCD tool     Taguchi method     regression analysis     simulated annealing     multi    

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Continuous size fractionation of magnetic nanoparticles by using simulated moving bed chromatography

Carsten-Rene Arlt, Dominik Brekel, Stefan Neumann, David Rafaja, Matthias Franzreb

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1346-1355 doi: 10.1007/s11705-021-2040-3

Abstract: This concept was transferred into a continuous process in this work using a so-called simulated moving

Keywords： magnetic chromatography     simulated moving bed chromatography     magnetic nanoparticles     size fractionation    

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Removal of nitric oxide from simulated flue gas using aqueous persulfate with activation of ferrous ethylenediaminetetraacetate

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 460-469 doi: 10.1007/s11705-022-2224-5

Abstract: Nitric oxide being a major gas pollutant has attracted much attention and various technologies have been developed to reduce NO emission to preserve the environment. Advanced persulfate oxidation technology is a workable and effective choice for wet flue gas denitrification due to its high efficiency and green advantages. However, NO absorption rate is limited and affected by mass transfer limitation of NO and aqueous persulfate in traditional reactors. In this study, a rotating packed bed (RPB) was employed as a gas–liquid absorption device to elevate the NO removal efficiency (ηNO) by aqueous persulfate ((NH4)2S2O8) activated by ferrous ethylenediaminetetraacetate (Fe2+-EDTA). The experimental results regarding the NO absorption were obtained by investigating the effect of various operating parameters on the removal efficiency of NO in RPB. Increasing the concentration of (NH4)2S2O8 and liquid–gas ratio could promoted the oxidation and absorption of NO while the ηNO decreased with the increase of the gas flow and NO concentration. In addition, improving the high gravity factor increased the ηNO and the total volumetric mass transfer coefficient (KGα) which raise the ηNO up to more than 75% under the investigated system. These observations proved that the RPB can enhance the gas–liquid mass transfer process in NO absorption. The correlation formula between KGα and the influencing factors was determined by regression calculation, which is used to guide the industrial scale-up application of the system in NO removal. The presence of O2 also had a negative effect on the NO removal process and through electron spin resonance spectrometer detection and product analysis, it was revealed that Fe2+-EDTA activated (NH4)2S2O8 to produce •SO4–, •OH and •O2–, played a leading role in the oxidation of NO, to produce NO3– as the final product. The obtained results demonstrated a good applicable potential of RPB/PS/Fe2+-EDTA in the removal of NO from flue gases.

Keywords： rotating packed bed     Fe2+-EDTA     sulfate radical     hydroxyl radical     NO removal efficiency    

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Pragmatic multi-stage simulated annealing for optimal placement of synchrophasor measurement units in

Pathirikkat GOPAKUMAR,M. JAYA BHARATA REDDY,Dusmata Kumar MOHANTA

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 148-161 doi: 10.1007/s11708-015-0344-z

Abstract: This paper proposes a pragmatic multi-stage simulated annealing (PMSSA) methodology for finding the optimalThe proposed PMSSA is much faster than the conventional simulated annealing (SA) approach as it utilizes

Keywords： phasor measurement units (PMUs)     pragmatic PMU placement     simulated annealing (SA)     western region Indian    

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Removing nitrogen and phosphorus from simulated wastewater using algal biofilm technique

WEI Qun, HU Zhiquan, LI Genbao, XIAO Bo, SUN Hao, TAO Meiping

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 446-451 doi: 10.1007/s11783-008-0064-2

Abstract: Experimental study on removing nitrogen and phosphorus from simulated wastewater using algal biofilmThis study demonstrates the feasibility of removing nitrogen and phosphorus from simulated wastewater
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Experimental study of modal parameter identification in a simulated ambient-excited structure

JI Xiaodong, QIAN Jiaru, XU Longhe

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 281-285 doi: 10.1007/s11709-007-0036-9

Abstract: algorithm were combined to identify the modal parameters in the time domain of a structure excited by simulatedThe experimental modal analysis was performed on a two-story steel braced frame model excited by simulated

Keywords： eigensystem realization     eigen-sensitivity analysis     realization algorithm     vibration     effective    

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One-pot hydrothermal fabrication of BiVO/FeO/rGO composite photocatalyst for the simulated solar light-driven

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1470-y

Abstract:

• BiVO4/Fe3O4/rGO has excellent photocatalytic activity under solar light radiation.

Keywords： Photocatalysis     Ternary magnetic photocatalyst     Visible-light-driven     Free radicals trapping     Reusability     Recycling    

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Effectiveness of aerobic pretreatment of municipal solid waste for accelerating biogas generation during simulated

Munawar Ali, Junli Zhang, Roberto Raga, Maria Cristina Lavagnolo, Alberto Pivato, Xu Wang, Yuanyuan Zhang, Raffaello Cossu, Dongbei Yue

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1031-1

Abstract: However, the purpose of the experiment was to reduce VS content of waste, irrespective of the comparison

Keywords： Municipal solid waste (MSW)     Aerobic pretreatment degree (APD)     Volatile solids (VS)     Intermittent aeration (IA)     Landfill gas     Landfilling    

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A combination process of mineral carbonation with SO2 disposal for simulated flue gas by magnesia-added

Yingying Zhao, Mengfan Wu, Zhiyong Ji, Yuanyuan Wang, Jiale Li, Jianlu Liu, Junsheng Yuan

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 832-844 doi: 10.1007/s11705-019-1871-7

Abstract: this study, the feasibility of magnesia and seawater for the integrated disposal of SO and CO in the simulated

Keywords： mineral carbonation     wet SO2 disposal     seawater     desulfurization    

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Design and experiment of a novel pneumatic soft arm based on a deployable origami exoskeleton

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11465-023-0770-2

Abstract: Soft arms have shown great application potential because of their flexibility and compliance in unstructured environments. However, soft arms made from soft materials exhibit limited cargo-loading capacity, which restricts their ability to manipulate objects. In this research, a novel soft arm was developed by coupling a rigid origami exoskeleton with soft airbags. The joint module of the soft arm was composed of a deployable origami exoskeleton and three soft airbags. The motion and load performance of the soft arm of the eight-joint module was tested. The developed soft arm withstood at least 5 kg of load during extension, contraction, and bending motions; exhibited bistable characteristics in both fully contracted and fully extended states; and achieved a bending angle of more than 240° and a contraction ratio of more than 300%. In addition, the high extension, contraction, bending, and torsional stiffnesses of the soft arm were experimentally demonstrated. A kinematic-based trajectory planning of the soft arm was performed to evaluate its error in repetitive motion. This work will provide new design ideas and methods for flexible manipulation applications of soft arms.

Keywords： pneumatic soft arm     soft airbag     deployable origami exoskeleton     bistable characteristics     cargo-loading capacity    

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Atmospheric heterogeneous reaction of chlorobenzene on mineral -FeO particulates: a chamber experiment

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1734-9

Abstract:

● Photochemical conversion of chlorobenzene (CB) on α-Fe2O3 was evaluated.

Keywords： Photochemical conversion     Chlorobenzene     α-Fe2O3     PCDD/Fs     Mineral particulate    

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Biaxial tensile-compressive experiment of concrete at high temperatures

SONG Yupu, ZHANG Zhong, QING Likun, YU Changjiang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 1,   Pages 94-98 doi: 10.1007/s11709-007-0009-z

Abstract: Biaxial tension-compression experiments of concrete of five stress ratios at high temperatures were carried out using the large static-dynamic triaxial test system in the State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology. The stress ratios s1/s3 are 0, 0.1, 0.25, 0.50, and 0.75. The temperatures are 20vH, 200vH, 300vH, 500vH, 600vH. The mechanical behavior of concrete under biaxial tension-compression at high temperatures is analyzed. It is found that both the tensile strength and strain diminished with the increase in temperature under each stress ratio. Based on the test results, the relationship between tensile strengths and stress ratios and temperature is proposed. In addition, the failure criterion of concrete under biaxial stress state of tension-compression at high temperatures is established.

Keywords： increase     Offshore Engineering     temperature     relationship     addition    

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Title Author Date Type Operation

Analysis of the Effect of Water and Fertilizer on Crop Production in Farmland of Arid Zone in Northern China

Gao Yajun,Li Shengxiu

Journal Article

Cu/Cr co-stabilization mechanisms in a simulated AlO-FeO-CrO-CuO waste system

Journal Article

Appraising the potential of calcium sulfoaluminate cement-based grouts in simulated permafrost environments

Journal Article

Prediction of cutting force in turning of UD-GFRP using mathematical model and simulated annealing

Meenu GUPTA, Surinder Kumar GILL

Journal Article

Continuous size fractionation of magnetic nanoparticles by using simulated moving bed chromatography

Carsten-Rene Arlt, Dominik Brekel, Stefan Neumann, David Rafaja, Matthias Franzreb

Journal Article

Removal of nitric oxide from simulated flue gas using aqueous persulfate with activation of ferrous ethylenediaminetetraacetate

Journal Article

Pragmatic multi-stage simulated annealing for optimal placement of synchrophasor measurement units in

Pathirikkat GOPAKUMAR,M. JAYA BHARATA REDDY,Dusmata Kumar MOHANTA

Journal Article

Removing nitrogen and phosphorus from simulated wastewater using algal biofilm technique

WEI Qun, HU Zhiquan, LI Genbao, XIAO Bo, SUN Hao, TAO Meiping

Journal Article

Experimental study of modal parameter identification in a simulated ambient-excited structure

JI Xiaodong, QIAN Jiaru, XU Longhe

Journal Article

One-pot hydrothermal fabrication of BiVO/FeO/rGO composite photocatalyst for the simulated solar light-driven

Journal Article

Effectiveness of aerobic pretreatment of municipal solid waste for accelerating biogas generation during simulated

Munawar Ali, Junli Zhang, Roberto Raga, Maria Cristina Lavagnolo, Alberto Pivato, Xu Wang, Yuanyuan Zhang, Raffaello Cossu, Dongbei Yue

Journal Article

A combination process of mineral carbonation with SO2 disposal for simulated flue gas by magnesia-added

Yingying Zhao, Mengfan Wu, Zhiyong Ji, Yuanyuan Wang, Jiale Li, Jianlu Liu, Junsheng Yuan

Journal Article

Design and experiment of a novel pneumatic soft arm based on a deployable origami exoskeleton

Journal Article

Atmospheric heterogeneous reaction of chlorobenzene on mineral -FeO particulates: a chamber experiment

Journal Article

Biaxial tensile-compressive experiment of concrete at high temperatures

SONG Yupu, ZHANG Zhong, QING Likun, YU Changjiang

Journal Article