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Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages

Kailou LIU,Yazhen LI,Huiwen HU

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 2,   Pages 150-157 doi: 10.15302/J-FASE-2014028

Abstract: The normalized difference vegetation index (NDVI) was measured at key growth stages in both early andNDVI differed with the growth stage of rice; it remained steady from the heading to the filling stageRice yield could be predicted from the NDVI taken at key rice growing stages, with ranging from 0.34Therefore, it was feasible to estimate rice yield for different amounts of urease inhibitor using NDVI

Keywords： normalized difference vegetation index (NDVI)     N-(n-butyl) thiophosphoric triamide (NBPT)     rice     grain yield    

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Effects of riparian vegetation patterns on the distribution and potential loss of soil nutrients: a case

Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 279-287 doi: 10.1007/s11783-014-0667-8

Abstract: The types of riparian vegetation have changed greatly because of human activities along the Wenyu RiverThis study examines the impact of riparian vegetation patterns on water pollution due to soil nutrientFour riparian vegetation patterns from the river channel to the upland were chosen as the focus of thisThe vegetation patterns of grassland-cropland and grassland-manmade lawn show that the grassland in theOur results suggest that the management of the riparian vegetation should be improved, particularly in

Keywords： riparian     vegetation patterns     soil nutrient distribution     nutrient loss     management    

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Divergent Changes in Vegetation Greenness, Productivity, and Rainfall Use Efficiency Are Characteristic

Yang Yu,Ting Hua,Liding Chen,Zhiqiang Zhang,Paulo Pereira,

Engineering doi: 10.1016/j.eng.2023.07.012

Abstract: Globally, vegetation has been changing dramatically.The vegetation–water dynamic is key to understanding ecosystem structure and functioning in water-limitedContinual satellite monitoring has detected global vegetation greening.In this study, satellite data, for example, leaf area index (LAI), net primary production (NPP) and rainfallA notable difference was noted in the distributions and trends of RUE across the upper, middle, and lower

Keywords： Vegetation greenness     Vegetation productivity     Rainfall use efficiency     Sensitivity     Yellow River Basin    

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Unnormalized and normalized forms of gefura measures in directed and undirected networks

Raf GUNS,Ronald ROUSSEAU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 4,   Pages 311-320 doi: 10.1631/FITEE.1400425

Abstract: In some networks nodes belong to predefined groups (e.g., authors belong to institutions). Common network centrality measures do not take this structure into account. Gefura measures are designed as indicators of a node’s brokerage role between such groups. They are defined as variants of betweenness centrality and consider to what extent a node belongs to shortest paths between nodes from different groups. In this article we make the following new contributions to their study: (1) We systematically study unnormalized gefura measures and show that, next to the ‘structural’ normalization that has hitherto been applied, a ‘basic’ normalization procedure is possible. While the former normalizes at the level of groups, the latter normalizes at the level of nodes. (2) Treating undirected networks as equivalent to symmetric directed networks, we expand the definition of gefura measures to the directed case. (3) It is shown how Brandes’ algorithm for betweenness centrality can be adjusted to cover these cases.

Keywords： Networks subdivided in groups     Partitions     Gefura measures     Q-measures     Brokerage role     Directed and undirected networks     Brandes’     algorithm    

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Temperature difference-powered carbon nanotube bearings

Quanwen HOU, Bingyang CAO, Zengyuan GUO

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 49-52 doi: 10.1007/s11708-010-0111-0

Abstract: simulations are conducted to study the motion of carbon nanotube-based nanobearings powered by temperature differenceWhen a temperature difference exists between stator nanotubes, the rotor nanotubes acquire a higher temperatureThe thermal driving force increases with the increase in temperature difference between the stators,an increase that is nearly proportional to the temperature difference.

Keywords： temperature difference-induced motion     carbon nanotubes     nanobearing     molecular dynamics simulation    

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Analogue Difference Balanced Function and Its Applications

Zhang Wenying,Li Shiqu

Strategic Study of CAE 2004, Volume 6, Issue 3,   Pages 45-52

Abstract:

This paper presents the concept of analogous difference of Boolean function, and call the Booleanfunction an analogue difference balanced function if whose analogous difference is balanced at any nonzero

Keywords： Bent function     perfect nonlinear function     2-radical expansion     analogue difference     analogue auto-correlationfunction     analogue difference balanced function    

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Synthesis of Intermittent-Motion Linkages with Slight Difference in Length Between Links

CHEN Xin-bo, YU Zhen

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 76-79 doi: 10.1007/s11465-005-0007-6

Abstract: In this paper, (1) a new method for realizing intermittent motion, using linkages with a slight difference

Keywords： synthesis     useful     intermittent     intermittent-motion     traditional    

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Comprehensive Utilization of Temperature Difference Energy and Low-Temperature Seawater Resources

Fu Qiang, Wang Guorong, Zhou Shouwei, Zhong Lin, Zhang Li, Yu Xingyong, Yang Pu

Strategic Study of CAE 2021, Volume 23, Issue 6,   Pages 52-60 doi: 10.15302/J-SSCAE-2021.06.007

Abstract:

China has a huge amount of ocean temperature difference energy resourcesseawater to generate electricity; this can help overcome the difficulties regarding the temperature differencetechnical references and application demonstrations for the comprehensive utilization of temperature difference

Keywords： ocean temperature difference energy     low-temperature seawater resources     liquefied natural gas cold energy     comprehensive utilization     temperature difference power generation    

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Geosynthetics used to stabilize vegetated surfaces for environmental sustainability in civil engineering

Jie HAN,Jun GUO

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 56-65 doi: 10.1007/s11709-016-0380-8

Abstract: To enhance environmental sustainability, vegetation has been increasingly planted on the facing or surfacesUnder such a condition, geosynthetics mainly function as surficial soil stabilization while vegetationGeosynthetics and vegetation are often integrated to provide combined benefits.The interaction between geosynthetics and vegetation is important for the sustainability of the earth

Keywords： erosion     geosynthetic     stabilization     sustainability     vegetation    

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The Difference Effect of Environmental Regulation on Two Stages of Technology Innovation in China’s Manufacturing

Bao-long Yuan,Sheng-gang Ren,Xing Hu,Xuan-yu Yang

Frontiers of Engineering Management 2016, Volume 3, Issue 1,   Pages 24-29 doi: 10.15302/J-FEM-2016007

Abstract: This paper divides technological innovation into two stages: technology development and technology transfer. Then the authors use the panel data of 28 manufacturing industries during 2003–2012 to test the econometric regression model for the industry of the sub stages, which is a regulation on technological innovation in the environment. The results show that: (1) environmental regulation has a significant role in promoting China’s manufacturing technology research patent achievements, and technology into new products, and this indicated that “Porter hypothesis” in the manufacturing sector has been verified; (2) R&D and transfer expenditure have a positive impact on technological innovation. Finally, the authors put forward the corresponding policy recommendations for industry of the environmental regulation on the impact of technological innovation in phases.

Keywords： environmental regulation     technology innovation     stage difference     manufacturing    

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Three-dimensional finite difference analysis of shallow sprayed concrete tunnels crossing a reverse fault

Masoud RANJBARNIA, Milad ZAHERI, Daniel DIAS

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 998-1011 doi: 10.1007/s11709-020-0621-8

Abstract: normal fault movement on a transversely crossing shallow shotcreted tunnel are investigated by 3D finite difference

Keywords： urban tunnel     sprayed concrete     reverse fault     normal fault     finite difference analysis    

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Sulfur mediated heavy metal biogeochemical cycles in coastal wetlands: From sediments, rhizosphere to vegetation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1523-x

Abstract:

• In sediments, the transformation of sulfides may lead to the release of heavy metals.

Keywords： Coastal wetland     Heavy metal     Sulfur     Biogeochemical cycle    

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Effects of different sediment fractions on sorption of galaxolide

Lixia JIN, Mengchang HE, Jinghuan ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 59-65 doi: 10.1007/s11783-010-0259-1

Abstract: Compared to the original sediments, the 375°C heating fractions had higher carbon-normalized distribution

Keywords： galaxolide (HHCB)     sorption     organic carbon     sediment     carbon-normalized distribution coefficient (   

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Changes of ecological conditions induced by rock tunneling in Laoshan Mountain area

LI Xiaozhao, ZHAO Xiaobao, WANG Zhongsheng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 366-370 doi: 10.1007/s11709-008-0056-0

Abstract: It is found that the environmental factors and vegetation situation have been influenced by the tunnelingthe time of habitat fragmentation is long enough and there is no supplement from external areas, some vegetation

Keywords： supplement     fragmentation     reference     tunneling activity     vegetation situation    

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Research on port ecological suitability evaluation index system and evaluation model

Yaofeng XIE,Xia LV,Ru LIU,Liuyan MAO,Xiaoxi LIU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1,   Pages 65-70 doi: 10.1007/s11709-014-0258-6

Abstract: pointed out the characteristics of port ecological effects and the principles of selecting evaluation indexOn this basis, we constructed the port ecological suitability evaluation index.analytic hierarchy process, to meet the multi-level, multi-objective characteristics of evaluation indexThe evaluation index system and evaluation model can be used to analysis the ecological suitability of

Keywords： port     ecological suitability     press-state-response (PSR) model     evaluation index system    

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Title Author Date Type Operation

Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages

Kailou LIU,Yazhen LI,Huiwen HU

Journal Article

Effects of riparian vegetation patterns on the distribution and potential loss of soil nutrients: a case

Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG

Journal Article

Divergent Changes in Vegetation Greenness, Productivity, and Rainfall Use Efficiency Are Characteristic

Yang Yu,Ting Hua,Liding Chen,Zhiqiang Zhang,Paulo Pereira,

Journal Article

Unnormalized and normalized forms of gefura measures in directed and undirected networks

Raf GUNS,Ronald ROUSSEAU

Journal Article

Temperature difference-powered carbon nanotube bearings

Quanwen HOU, Bingyang CAO, Zengyuan GUO

Journal Article

Analogue Difference Balanced Function and Its Applications

Zhang Wenying,Li Shiqu

Journal Article

Synthesis of Intermittent-Motion Linkages with Slight Difference in Length Between Links

CHEN Xin-bo, YU Zhen

Journal Article

Comprehensive Utilization of Temperature Difference Energy and Low-Temperature Seawater Resources

Fu Qiang, Wang Guorong, Zhou Shouwei, Zhong Lin, Zhang Li, Yu Xingyong, Yang Pu

Journal Article

Geosynthetics used to stabilize vegetated surfaces for environmental sustainability in civil engineering

Jie HAN,Jun GUO

Journal Article

The Difference Effect of Environmental Regulation on Two Stages of Technology Innovation in China’s Manufacturing

Bao-long Yuan,Sheng-gang Ren,Xing Hu,Xuan-yu Yang

Journal Article

Three-dimensional finite difference analysis of shallow sprayed concrete tunnels crossing a reverse fault

Masoud RANJBARNIA, Milad ZAHERI, Daniel DIAS

Journal Article

Sulfur mediated heavy metal biogeochemical cycles in coastal wetlands: From sediments, rhizosphere to vegetation

Journal Article

Effects of different sediment fractions on sorption of galaxolide

Lixia JIN, Mengchang HE, Jinghuan ZHANG

Journal Article

Changes of ecological conditions induced by rock tunneling in Laoshan Mountain area

LI Xiaozhao, ZHAO Xiaobao, WANG Zhongsheng

Journal Article

Research on port ecological suitability evaluation index system and evaluation model

Yaofeng XIE,Xia LV,Ru LIU,Liuyan MAO,Xiaoxi LIU

Journal Article