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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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Smart model for accurate estimation of solar radiation

Lazhar ACHOUR, Malek BOUHARKAT, Ouarda ASSAS, Omar BEHAR

Frontiers in Energy 2020, Volume 14, Issue 2, Pages 383-399 doi: 10.1007/s11708-017-0505-3

Abstract: Since it has been observed that each model is adequate for some months of the year, one model cannothybrid system is proposed which selects, based on the intelligent rules, the most suitable prediction modelyears (2000–2004) have been collected from the Algerian National Office of Meteorology (NOM), and two spatialThe results indicate that the new hybrid model is capable of predicting the monthly global solar radiation

Keywords： global solar radiation statistical indicator hybrid model spatial database correlation coefficients

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Research on 4-adj model for determination of spatial relations in spattio model

Li Chengming

Strategic Study of CAE 2013, Volume 15, Issue 5, Pages 37-41

Abstract:

The concept of spattio model is proposed firstly in this paper.Furthermore, it points out that the graphic system based on spattio model will degenerate into a simplegeodatabase if it doesn't have the ability to dynamically generate spatial relations.At last, the paper proposes the new method called four-adjacent mathematical model (4-adj model) basedon Voronoi diagram to dynamically infer the spatial relations in spattio model, and gives the only complete

Keywords： spattio model spattio object Voronoi diagram 4-adj model

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A comprehensive analysis of a 3-P (Pa) S spatial parallel manipulator

Yuzhe LIU,Liping WANG,Jun WU,Jinsong WANG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1, Pages 7-19 doi: 10.1007/s11465-015-0324-3

Abstract:

In this paper, a novel 3-degree of freedom (3-DOF) spatial parallel kinematic machine (PKM) is analyzedSecondly, the kinematics model of this spatial PKM is set up.Furthermore, the velocity model is put forward.Two indexes based on the velocity model are employed to investigate the performance of this spatial PKMAt last, the output error model can be obtained and simulated.

Keywords： parallel mechanism concomitant motions kinematics workspaces error model

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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 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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Border-search and jump reduction method for size optimization of spatial truss structures

Babak DIZANGIAN, Mohammad Reza GHASEMI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1, Pages 123-134 doi: 10.1007/s11709-018-0478-2

Abstract: This paper proposes a sensitivity-based border-search and jump reduction method for optimum design of spatialSpatial truss problems were attempted for optimization in order to show the fastness and efficiency of

Keywords： optimum design sensitivity analysis reduction method spatial trusses OpenSees

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Abundance, spatial distribution, and physical characteristics of microplastics in stormwater detention

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1724-y

Abstract: Despite extensive research on microplastics (MP) in marine environments, little is known about MP abundance and transport in terrestrial systems. There is, therefore, still little understanding of the main mechanisms driving the substantial transport of MP across different environmental compartments. Storm events can transport MP beyond boundaries, such as from the land to groundwater or the ocean, as has already been discovered for organic carbon transport. Urban stormwater detention ponds are suitable environments to study the impact of stormwater on the environmental fate and transport of MP. Herein, we investigate the longitudinal and vertical distribution of MP within two detention ponds with different physical characteristics. Soil samples were collected at various locations and from multiple depths (surface and subsurface layers) for measuring MP concentrations using fluorescence microscopy. Our findings show that MP are retained more near the inlet of the ponds, and MP of larger sizes were found more abundantly near inlets than outlets. We also found that MP mass and sizes decrease from surface soil to subsurface soil. In the pond, where vegetation (grass root network) was more considerable, MP were found more evenly distributed along the depth. In terms of shape, the fragments were the most abundant MP shape.

Keywords： Microplastic Environmental transport Soil pollution Stormwater Detention ponds

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Spatial prediction of soil contamination based on machine learning: a review

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1693-1

Abstract:

● A review of machine learning (ML) for spatial prediction of soil

Keywords： Soil contamination Machine learning Prediction Spatial distribution

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Optimization of spatial structure designs of control rod using Monte Carlo code RMC

Frontiers in Energy 2021, Volume 15, Issue 4, Pages 974-983 doi: 10.1007/s11708-021-0769-5

Abstract: In this work, some control rod designs are proposed with optimized spatial structures including the spatiallyFor the spatially mixed rod, rare-earth absorbers are combined with B₄C in spatial structure

Keywords： control rod optimized spatial structure neutronic performance burnup stability

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Differences in distributions, assembly mechanisms, and putative interactions of AOB and NOB at a large spatial

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1722-0

Abstract:

● Nitrifiers in WWTP were investigated at large spatial scale.

Keywords： Activated sludge Spatial distributions Microbial assembly Co-occurrence patterns Nitrifying bacteria

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Optimization of Urban Spatial Structure Based on TOD Model

Lu Huapu, Liu Ruoyang , Zhang Yongbo , Fu Zhihuan

Strategic Study of CAE 2022, Volume 24, Issue 6, Pages 137-145 doi: 10.15302/J-SSCAE-2022.06.012

Abstract: A transit-oriented-development (TOD) model that integrates transportation with land use is key to solvingpopulation distribution, and investigates the population distribution characteristics of the TOD modelAdditionally, a reasonable urban spatial structure is proposed comprising urban spatial structuresplanning approval, incentive mechanism, and public participation, thereby providing support for TOD model

Keywords： urban spatial structure integration of transportation and land use transit-oriented development urban

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Application of cable-supported spatial grid in dry coal shed

XING Haidong, HAO Jiping, XU Guobin

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1, Pages 26-29 doi: 10.1007/s11709-008-0008-8

Abstract: This paper presented a new structural style cable-supported spatial grid, which was applied in largeThe results show that the cable-supported spatial grid can maximize the use of material strength, and

Keywords： dry material strength low rational configuration influence

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PyLUR: Efficient software for land use regression modeling the spatial distribution of air pollutants

Xuying Ma, Ian Longley, Jennifer Salmond, Jay Gao

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1221-5

Abstract: PyLUR comprises four modules for developing and applying a LUR model.GDAL/OGR libraries are used to do spatial analysis in the modeling and prediction.It uses GDAL/OGR libraries based on the Python platform and can build a LUR model and generate pollutantcomprises four modules: a potential predictor variable generation module, a regression modeling module, a modelmodeling software called RLUR (with similar functions implemented on R language platform) in terms of model

Keywords： LUR Air pollution modelling GIS spatial analysis GDAL/OGR Python Pollutant concentration mapping

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Animage-based approach to the reconstruction of ancient architectures by extracting and arranging 3D spatial

Divya Udayan J,HyungSeok KIM,Jee-In KIM

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 1, Pages 12-27 doi: 10.1631/FITEE.1400141

Abstract: First, an initial model is automatically reconstructed using locally fitted planar primitives along withThis approach is faster and more accurate than creating a model from scratch because the initial reconstructionand editing techniques with modeling software to assemble and adjust different 3D components of the model

Keywords： Digital reconstruction 3D virtual world 3D spatial components Vision and scene understanding

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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