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The calculation of equivalence factor for ecological footprints in China: a methodological note

Moucheng LIU,Wenhua LI,Dan ZAHNG,Ning SU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1015-1024 doi: 10.1007/s11783-014-0670-0

Abstract: In order to appraise land area types with different levels of productivity, they introduced the conceptThis relates to the average primary biomass productivities of different types of land (i.e. arable landbiomass productivity of all land types in a given year.Secondly, China’s equivalence factor for 6 land area types was calculated based on NPP: arable land andtypes in different provinces was also calculated.

Keywords： ecological footprint     equivalence factor     net primary production     biological capacity     land types    

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Nucleate boiling in two types of vertical narrow channels

Lei GUO, Shusheng ZHANG, Lin CHENG

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 250-256 doi: 10.1007/s11708-010-0128-4

Abstract: To explore the mechanism of boiling bubble dynamics in narrow channels, we investigate 2-mm wide I- and Z-shaped channels. The influence of wall contact angle on bubble generation and growth is studied using numerical simulation. The relationships between different channel shapes and the pressure drop are also examined, taking into account the effects of gravity, surface tension, and wall adhesion. The wall contact angle imposes considerable influence over the morphology of bubbles. The smaller the wall contact angle, the rounder the bubbles, and the less time the bubbles take to depart from the wall. Otherwise, the bubbles experience more difficulty in departure. Variations in the contact angle also affect the heat transfer coefficient. The greater the wall contact angle, the larger the bubble-covered area. Therefore, wall thermal resistance increases, bubble nucleation is suppressed, and the heat transfer coefficient is lowered. The role of surface tension in boiling heat transfer is considerably more important than that of gravity in narrow channels. The generation of bubbles dramatically disturbs the boundary layer, and the bubble bottom micro-layer can enhance heat transfer. The heat transfer coefficient of Z-shaped channels is larger than that of the I-shaped type, and the pressure drop of the former is clearly higher.

Keywords： nucleate boiling     narrow channel     numerical simulation     bubble dynamics    

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Advanced Reactor Types and China’s Nuclear Power Industry

Hu Yalei

Strategic Study of CAE 2005, Volume 7, Issue 11,   Pages 98-102

Abstract:

This article describes the four generation of reactor types.Firstly, it looks back the development of the 1st. and 2nd. generation reactor types; Secondly, explainsthe development and the design characteristics of several typical 3rd generation advanced reactor types

Keywords： advanced reactor types     China’s nuclear power industry    

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Effects of different types of biochar on the properties and reactivity of nano zero-valent iron in soil

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-021-1388-4

Abstract:

• Biochar enhanced the mobility and stability of zero-valent iron nanoparticles.

Keywords： Nano zero-valent iron     Biochar     BDE209     Transport     Soil    

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Mechanical properties characterization of different types of masonry infill walls

André FURTADO, Hugo RODRIGUES, António ARÊDE, Humberto VARUM

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 411-434 doi: 10.1007/s11709-019-0602-y

Abstract: experimental campaign of mechanical characterization tests of infill masonry walls made with three different typesFour different types of experimental tests were carried out, namely: compression strength tests, diagonal

Keywords： masonry infill walls     experimental characterization     compression strength     shear diagonal strength     flexural strength    

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Exploring differentiated improvement strategies of cultivated land quality in China

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023523

Abstract:

● Cultivated land quality can be considered in four dimensions: suitability

Keywords： China     cultivated land quality     differentiated improvement     food security    

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Effect of land use and land cover change on soil erosion and the spatio-temporal variation in Liupan

Bin QUAN, M. J. M. R?MKENS, Rui LI, Fang WANG, Jie CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 564-572 doi: 10.1007/s11783-011-0348-9

Abstract: damage over time due to population pressure, excessive demand and inappropriate use of agricultural landTo present the relationship between land use/cover change and spatio-temporal variation of soil erosionAlso, soil erosion in response to land use and land cover change were quantified and analyzed using dataModerate, severe, and very severe eroded areas accounted for 54.86% of the total land area.Soil erosion was severe on grassland with a moderate or low grass cover and on dry land.

Keywords： land use/land cover change     soil erosion     geographical information system     remote sensing     Liupan Mountain    

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Vehicle-bridge coupled vibrations in different types of cable stayed bridges

Lingbo WANG,Peiwen JIANG,Zhentao HUI,Yinping MA,Kai LIU,Xin KANG

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 81-92 doi: 10.1007/s11709-015-0306-x

Abstract: Numerical analyses of the coupled vibrations of vehicle-bridge system and the effects of different typesCompared to other types of cable stayed bridges, the floating bridge system has relatively high possibility

Keywords： vehicle-bridge coupled vibration     cable stayed bridge     resonances of vehicle-bridge system    

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Evaluating heavy metal contamination of riverine sediment cores in different land-use areas

Wenzhong Tang, Liu Sun, Limin Shu, Chuang Wang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1283-4

Abstract: Abstract • Metal pollution was studied in riverine sediments from different land-use areas. • Cd wasregarded as the main sources of heavy metal pollution, yet few studies have investigated the effects of land-useheavy metal pollution, risk and toxicity were determined in riverine sediment cores from different land-use

Keywords： Heavy metals     Riverine sediments     Pollution     Land-use    

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Field scale measurement of greenhouse gas emissions from land applied swine manure

Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0915-9

Abstract: ) from swine production systems are relatively well researched with the exception of emissions from landThus, the objective of this observational study was to measure GHG fluxes from land application of swineAssessment of GHG emissions from deep injected land-applied swine manure, fall and reapplication in the

Keywords： Climate change     Emissions     Greenhouse gases     Land application     Swine manure    

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A family of non-conforming crack front elements of quadrilateral and triangular types for 3D crack problems

Guizhong XIE, Fenglin ZHOU, Hao LI, Xiaoyu WEN, Fannian MENG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 332-341 doi: 10.1007/s11465-019-0540-3

Abstract: This study focuses on establishing non-conforming crack front elements of quadrilateral and triangular types

Keywords： Taylor expansion     crack front elements     stress intensity factors     dual boundary element method    

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Optimization of Land-use Based on the Theory of Cellular Automata and Value of Ecosystem Services

Lian-fu Jiang,Guo-xian Xu,Hao Jiang

Frontiers of Engineering Management 2014, Volume 1, Issue 4,   Pages 395-401 doi: 10.15302/J-FEM-2014058

Abstract: The land utilization condition in the target city was simulated using Arc GIS and Geo SOS software basing

Keywords： Ecosystem service function     optimization of land use     Cellular Automata (CA)    

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Simulation of soil carbon changes due to land use change in urban areas in China

Cui HAO, Jo SMITH, Jiahua ZHANG, Weiqing MENG, Hongyuan LI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 255-266 doi: 10.1007/s11783-013-0485-4

Abstract: Land use change can have a strong impact on soil carbon dynamics and carbon stocks in urban areas.Due to rapid urbanization, large areas of land have been paved, and other areas have undergone rapidland use change.The soil carbon dynamics, due to rapid land use change in Tianjin Binhai New Area of China, have beenlosses from the soils due to previous land use changes.

Keywords： land use change     soil carbon     RothC     urban area    

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Land-Sea Integration Engineering and Technology Development Strategy

Task Force for the Study on Development Strategy of China’s Marine Engineering and Technology Land-Sea

Strategic Study of CAE 2016, Volume 18, Issue 2,   Pages 49-54 doi: 10.15302/J-SSCAE-2016.02.005

Abstract:

Land-sea integration engineering refers to the engineering projects involving overlapping elementsof land and sea and play significant roles in the development and operation of these domains, includingports, bridges and tunnels, and land reclamation and others.In recent years, land-sea integration engineering projects have gained momentum and impetus in ChinaThis study shows that although the land-sea integration engineering has played a significant role in

Keywords： land-sea integration engineering     coastal regions     marine engineering     land-sea coordination    

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Effects of land use change on hydrological cycle from forest to upland field in a catchment, Japan

Chuan ZHANG, Keiji TAKASE, Hiroki OUE, Nobuhiro EBISU, Haofang YAN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 456-465 doi: 10.1007/s11709-013-0218-6

Abstract: Understanding the effects of land use change on the hydrological cycle is very important for developmentThis study will provide information for forest managers in planning and making decisions for land and

Keywords： land-use change     hydrological processes     upland field catchment     forest catchment     semi-distributed hydrological    

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Title Author Date Type Operation

The calculation of equivalence factor for ecological footprints in China: a methodological note

Moucheng LIU,Wenhua LI,Dan ZAHNG,Ning SU

Journal Article

Nucleate boiling in two types of vertical narrow channels

Lei GUO, Shusheng ZHANG, Lin CHENG

Journal Article

Advanced Reactor Types and China’s Nuclear Power Industry

Hu Yalei

Journal Article

Effects of different types of biochar on the properties and reactivity of nano zero-valent iron in soil

Journal Article

Mechanical properties characterization of different types of masonry infill walls

André FURTADO, Hugo RODRIGUES, António ARÊDE, Humberto VARUM

Journal Article

Exploring differentiated improvement strategies of cultivated land quality in China

Journal Article

Effect of land use and land cover change on soil erosion and the spatio-temporal variation in Liupan

Bin QUAN, M. J. M. R?MKENS, Rui LI, Fang WANG, Jie CHEN

Journal Article

Vehicle-bridge coupled vibrations in different types of cable stayed bridges

Lingbo WANG,Peiwen JIANG,Zhentao HUI,Yinping MA,Kai LIU,Xin KANG

Journal Article

Evaluating heavy metal contamination of riverine sediment cores in different land-use areas

Wenzhong Tang, Liu Sun, Limin Shu, Chuang Wang

Journal Article

Field scale measurement of greenhouse gas emissions from land applied swine manure

Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning

Journal Article

A family of non-conforming crack front elements of quadrilateral and triangular types for 3D crack problems

Guizhong XIE, Fenglin ZHOU, Hao LI, Xiaoyu WEN, Fannian MENG

Journal Article

Optimization of Land-use Based on the Theory of Cellular Automata and Value of Ecosystem Services

Lian-fu Jiang,Guo-xian Xu,Hao Jiang

Journal Article

Simulation of soil carbon changes due to land use change in urban areas in China

Cui HAO, Jo SMITH, Jiahua ZHANG, Weiqing MENG, Hongyuan LI

Journal Article

Land-Sea Integration Engineering and Technology Development Strategy

Task Force for the Study on Development Strategy of China’s Marine Engineering and Technology Land-Sea

Journal Article

Effects of land use change on hydrological cycle from forest to upland field in a catchment, Japan

Chuan ZHANG, Keiji TAKASE, Hiroki OUE, Nobuhiro EBISU, Haofang YAN

Journal Article