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Soil spatial variability impact on the behavior of a reinforced earth wall

Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 518-531 doi: 10.1007/s11709-020-0611-x

Abstract: This article presents the soil spatial variability effect on the performance of a reinforced earth wallThe Monte Carlo simulation technique is used to obtain the deformation response variability of the reinforcedThe influences of the spatial variability response of the geotechnical system in terms of horizontalThe results obtained show that the spatial variability has an important influence on the facing horizontal

Keywords： reinforced earth wall     geosynthetic     random field     spatial variability     Monte Carlo simulation    

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Quantifying and mapping spatial variability of Shanghai household carbon footprints

Shangguang YANG,Chunlan WANG,Kevin LO,Mark WANG,Lin LIU

Frontiers in Energy 2015, Volume 9, Issue 1,   Pages 115-124 doi: 10.1007/s11708-015-0348-8

Abstract: Understanding the spatial variability of household carbon emissions is necessary for formulating sustainableThe findings reveal substantial spatial variability in household carbon emissions, especially in transport-relatedOverall, the spatial pattern of household carbon emissions in Shanghai is donut-shaped: lowest in the

Keywords： household carbon emissions     spatial variability     energy policy     Shanghai     China    

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Reliability assessment of three-dimensional bearing capacity of shallow foundation using fuzzy set theory

Rajarshi PRAMANIK, Dilip Kumar BAIDYA, Nirjhar DHANG

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 478-489 doi: 10.1007/s11709-021-0698-8

Abstract: The spatial variability of the soil is incorporated for both isotropic and anisotropic fields, whichscale of fluctuation on the probability of failure is investigated, and the necessity for considering spatialvariability in the reliability analysis is well proven.

Keywords： finite element method     square footing     reliability analysis     fuzzy set theory     coefficient of variation     spatialvariability    

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Influence of the sewage irrigation on the agricultural soil properties in Tongliao City, China

Hong YAO, Shichao ZHANG, Xiaobo XUE, Jie YANG, Kelin HU, Xiaohua YU

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 273-280 doi: 10.1007/s11783-013-0497-0

Abstract: This study evaluates the spatial variability of soil properties after irrigation with wastewater andGeostatistical techniques were used to identify the variability of soil properties at the different sites

Keywords： spatial variability     soil properties     groundwater and sewage irrigation    

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PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL SUSTAINABILITY IN NORTH-WEST CHINA

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4, doi: 10.15302/J-FASE -2020355

Abstract: Yield variability under drip irrigation was 12.1%, lower than the 18.8% under border irrigation.

Keywords： boundary line analysis     irrigation method     precision agriculture     spatial variability     yield gaps    

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Fuel variability effect on flickering frequency of diffusion flames

Jizhao LI, Yang ZHANG

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 134-140 doi: 10.1007/s11708-009-0034-9

Abstract: It is known that fuel variability of different gas suppliers may cause combustion instability in a gasThe intent of this study is to investigate the fuel variability on the flickering frequency of diffusionflames in the hope of understanding some of the fundamental aspects of fuel variability effect on the

Keywords： fuel variability     flickering frequency     diffusion flames     dynamics of combustion    

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Spatial Variability and Distribution of Nitrate Content of Shallow Groundwater in Huang-Huai-Hai Plain

Li Baoguo,Bai Youlu,Hu Kelin,Huang Yuanfang,Chen Deli

Strategic Study of CAE 2001, Volume 3, Issue 4,   Pages 42-45

Abstract:

The spatial variability and distribution of NO3- N in shallow groundwater in Huang-Huai-HaiThe results indicated that it did not show a spatial structure at the sampling density of 35～50 km inThe spatial variability of NO3-N content belonged to high intensity.

Keywords： Huang-Huai-Hai Plain     groundwater     nitrate     spatial distribution    

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Characterization of random stress fields obtained from polycrystalline aggregate calculations using multi-scale stochastic finite elements

Bruno SUDRET,Hung Xuan DANG,Marc BERVEILLER,Asmahana ZEGHADI,Thierry YALAMAS

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 121-140 doi: 10.1007/s11709-015-0290-1

Abstract: The spatial variability of stress fields resulting from polycrystalline aggregate calculations involving

Keywords： polycrystalline aggregates     crystal plasticity     random fields     spatial variability     correlation structure    

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Treatment, residual chlorine and season as factors affecting variability of trihalomethanes in small

Roberta DYCK,Geneviève COOL,Manuel RODRIGUEZ,Rehan SADIQ

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 171-179 doi: 10.1007/s11783-014-0750-1

Abstract: Seasonal variability in source water can lead to challenges for drinking water providers related to operationalThe objective of this study is to investigate seasonal variability of water quality in municipal smallThe seasonal variability was generally more pronounced in systems using chlorination plus additionalstudy with these data will be beneficial in finding determinants and indicators for both quantity and variability

Keywords： drinking water     residual chlorine     seasonal variability     small municipal systems     treatment technologies    

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Distribution and temporal variability of the solar resource at a site in south-east Norway

Muyiwa S. ADARAMOLA

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 375-381 doi: 10.1007/s11708-016-0426-6

Abstract: However, the variability of this resource has been the main barrier for solar energy development in mostThis paper investigated the distribution and variability of solar radiation using the a 10-year (2006

Keywords： coefficient of variation     global solar radiation     diffuse ratio     albedo     PV energy systems    

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PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL SUSTAINABILITY IN NORTH-WEST CHINA

Xiuwei GUO, Manoj Kumar SHUKLA, Di WU, Shichao CHEN, Donghao LI, Taisheng DU

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 525-544 doi: 10.15302/J-FASE-2020355

Abstract: Yield variability under drip irrigation was 12.1%, lower than the 18.8% under border irrigation.

Keywords： boundary line analysis     irrigation method     precision agriculture     spatial variability     yield gaps     yield-limiting    

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Shallow foundation response variability due to soil and model parameter uncertainty

Prishati RAYCHOWDHURY,Sumit JINDAL

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 3,   Pages 237-251 doi: 10.1007/s11709-014-0242-1

Abstract: Geotechnical uncertainties may play crucial role in response prediction of a structure with substantial soil-foundation-structure-interaction (SFSI) effects. Since the behavior of a soil-foundation system may significantly alter the response of the structure supported by it, and consequently several design decisions, it is extremely important to identify and characterize the relevant parameters. Moreover, the modeling approach and the parameters required for the modeling are also critically important for the response prediction. The present work intends to investigate the effect of soil and model parameter uncertainty on the response of shallow foundation-structure systems resting on dry dense sand. The SFSI is modeled using a beam-on-nonlinear-winkler-foundation (BNWF) concept, where soil beneath the foundation is assumed to be an assembly of discrete, nonlinear elements composed of springs, dashpots and gap elements. The sensitivity of both soil and model input parameters on shallow foundation responses are investigated using first-order second-moment (FOSM) analysis and Monte Carlo simulation through Latin hypercube sampling technique. It has been observed that the degree of accuracy in predicting the responses of the shallow foundation is highly sensitive soil parameters, such as friction angle, Poisson’s ratio and shear modulus, rather than model parameters, such as stiffness intensity ratio and spring spacing; indicating the importance of proper characterization of soil parameters for reliable soil-foundation response analysis.

Keywords： shallow foun dation     sensitivity analysis     centrifuge data     first-order-second-moment (FOSM) method     parameter uncertainty    

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Quantification of emission variability for off-road equipment in China based on real-world measurements

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1455-x

Abstract:

• Emissions from 53 in-use diesel-fueled off-road equipment were measured.

Keywords： Off-road equipment     Portable emission measurement system (PEMS)     Real-world emissions     Diesel engine    

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Variability of waste copper slag concrete and its effect on the seismic safety of reinforced concrete

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 117-130 doi: 10.1007/s11709-021-0788-7

Abstract: In particular, the variability in the strength properties of waste copper slag concrete, which is required

Keywords： waste copper slag     quantification of variability     goodness-of-fit test     seismic risk assessment     PSDM    

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Industrial eco-efficiency and its spatial-temporal differentiation in China

Wei YANG, Fengjun JIN, Chengjin WANG, Chen LV

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 559-568 doi: 10.1007/s11783-012-0400-4

Abstract: The aim of this paper is to study the spatial-temporal differentiation of industrial eco-efficiency inUsing methods based on the data envelopment analysis (DEA) model and exploratory spatial data analysis(ESDA) and data from 1985, 1995, 2005, and 2008 of 30 provinces in China, the spatial-temporal patternindustrial eco-efficiency are dominated by clustering of relatively low efficiency provinces; second, spatialunits are concentrated in eastern China, and the lower level spatial units are mainly in western and

Keywords： industrial eco-efficiency     data envelopment analysis (DEA) model     exploratory spatial data analysis (ESDA    

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Title Author Date Type Operation

Soil spatial variability impact on the behavior of a reinforced earth wall

Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI

Journal Article

Quantifying and mapping spatial variability of Shanghai household carbon footprints

Shangguang YANG,Chunlan WANG,Kevin LO,Mark WANG,Lin LIU

Journal Article

Reliability assessment of three-dimensional bearing capacity of shallow foundation using fuzzy set theory

Rajarshi PRAMANIK, Dilip Kumar BAIDYA, Nirjhar DHANG

Journal Article

Influence of the sewage irrigation on the agricultural soil properties in Tongliao City, China

Hong YAO, Shichao ZHANG, Xiaobo XUE, Jie YANG, Kelin HU, Xiaohua YU

Journal Article

PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL SUSTAINABILITY IN NORTH-WEST CHINA

Journal Article

Fuel variability effect on flickering frequency of diffusion flames

Jizhao LI, Yang ZHANG

Journal Article

Spatial Variability and Distribution of Nitrate Content of Shallow Groundwater in Huang-Huai-Hai Plain

Li Baoguo,Bai Youlu,Hu Kelin,Huang Yuanfang,Chen Deli

Journal Article

Characterization of random stress fields obtained from polycrystalline aggregate calculations using multi-scale stochastic finite elements

Bruno SUDRET,Hung Xuan DANG,Marc BERVEILLER,Asmahana ZEGHADI,Thierry YALAMAS

Journal Article

Treatment, residual chlorine and season as factors affecting variability of trihalomethanes in small

Roberta DYCK,Geneviève COOL,Manuel RODRIGUEZ,Rehan SADIQ

Journal Article

Distribution and temporal variability of the solar resource at a site in south-east Norway

Muyiwa S. ADARAMOLA

Journal Article

PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL SUSTAINABILITY IN NORTH-WEST CHINA

Xiuwei GUO, Manoj Kumar SHUKLA, Di WU, Shichao CHEN, Donghao LI, Taisheng DU

Journal Article

Shallow foundation response variability due to soil and model parameter uncertainty

Prishati RAYCHOWDHURY,Sumit JINDAL

Journal Article

Quantification of emission variability for off-road equipment in China based on real-world measurements

Journal Article

Variability of waste copper slag concrete and its effect on the seismic safety of reinforced concrete

Journal Article

Industrial eco-efficiency and its spatial-temporal differentiation in China

Wei YANG, Fengjun JIN, Chengjin WANG, Chen LV

Journal Article