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Study on hydrodynamic and synthetic water quality model for river networks

Zhang Mingliang,Shen Yongming

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 78-83

Abstract: method is applied to resolve the hydrodynamic mathematical model for river networks.Based on the characteristics of river-junction-river method and the theory of WASP, the synthetic waterquality model is set up for river networks, which includes many contamination variables and considersThis model is applied to simulate four river networks, the results of elevations and flows agree withnetworks.

Keywords： Preissmann implicit scheme     river networks     hydrodynamic model     water quality model     WASP model    

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Study and Application of Steady Flow and Unsteady Flow Mathematical Model for Canal Networks

Zhang Mingliang,Shen Yongming

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 92-96

Abstract: scheme for one-dimensional Saint-Venant Equation,  the mathematical model for one- dimensional rivercanal networks.and river networks.show the application value of this model is to set up ecological numerical model of water quality in rivernetworks and canal networks.

Keywords： Preissmann implicit scheme     canal networks and river networks     discharge distribution     water quality    

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Theory and Practice of Hydrodynamic Reconstruction in Plain River Networks Article

Hongwu Tang, Saiyu Yuan, Hao Cao

Engineering 2023, Volume 24, Issue 5,   Pages 202-212 doi: 10.1016/j.eng.2022.01.015

Abstract:

The river networks in the plains of China are in low-lying terrain with mild bed slopes and weak hydrodynamicsFrom this, a theory for the hydrodynamic reconstruction of plain river networks is proposed.networks.networks with weak hydrodynamics is established.The principles of the integrated management of water problems in river network areas are put forward.

Keywords： Plain river network     Water security problems     Hydrodynamic reconstruction     Multi-objective     Integrated    

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Multi-scale evaluation of river health in Liao River Basin, China

Fei XU, Yanwei ZHAO, Zhifeng YANG, Yuan ZHANG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 227-235 doi: 10.1007/s11783-010-0219-9

Abstract: Previous studies on river health evaluation mainly focused on characterizations at a river-corridor scaleand ignored the complex interactions between the river ecosystem and other components of the river basinBased on the consideration of the interactions among rivers, associated river basin and habitats, an’s Liao River Basin was established.basin, were the main causes of the river health deterioration.

Keywords： multi-scale characterization     river health evaluation     Liao River Basin     set pair analysis    

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Novel interpretable mechanism of neural networks based on network decoupling method

Frontiers of Engineering Management 2021, Volume 8, Issue 4,   Pages 572-581 doi: 10.1007/s42524-021-0169-x

Abstract: The lack of interpretability of the neural network algorithm has become the bottleneck of its wide application. We propose a general mathematical framework, which couples the complex structure of the system with the nonlinear activation function to explore the decoupled dimension reduction method of high-dimensional system and reveal the calculation mechanism of the neural network. We apply our framework to some network models and a real system of the whole neuron map of Caenorhabditis elegans. Result shows that a simple linear mapping relationship exists between network structure and network behavior in the neural network with high-dimensional and nonlinear characteristics. Our simulation and theoretical results fully demonstrate this interesting phenomenon. Our new interpretation mechanism provides not only the potential mathematical calculation principle of neural network but also an effective way to accurately match and predict human brain or animal activities, which can further expand and enrich the interpretable mechanism of artificial neural network in the future.

Keywords： neural networks     interpretability     dynamical behavior     network decouple    

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Multiple Pollutants from Crop and Livestock Production in the Yangtze River: Status and Challenges

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023511

Abstract:

● Cash crops and livestock production in Yangtze River Basin has

Keywords： Development     crop production     livestock production     multi-pollutant models     multiple pollutants     Yangtze River    

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Integrated river basin management in rapidly urbanizing areas: a case of Shenzhen, China

Lei LIU, Xiaoming MA

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 243-254 doi: 10.1007/s11783-010-0276-0

Abstract: This paper analyzes effective methods to integrated river basin management (IRBM) using Longgang RiverCurrently, every water quality indicator of the Longgang River basin was unable to meet the requiredThe framework and institutional suggestions could inform similar processes in other representative river

Keywords： integrated river basin management (IRBM) model     Longgang River basin     Shenzhen     decentralization     stakeholder    

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Problems of Syrdarya river basin management

Serdar EYEBERENOV, Baijing CAO, Fengting LI

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 221-225 doi: 10.1007/s11783-009-0015-6

Abstract: Countries sharing benefits from the river have to be responsible for costs of operation and maintenance

Keywords： Central Asia     energy     agriculture     water     Syrdarya basin    

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Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water

Haifeng JIA, Shuo WANG, Mingjie WEI, Yansong ZHANG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 255-265 doi: 10.1007/s11783-010-0279-x

Abstract: In the study, a typical peri-urban river, Nansha River, was selected as a case study to discuss the schemeof peri-urban river rehabilitation.Located in the north part of the Beijing central region, the Nansha River watershed has been designatedHowever, the Nansha River is currently seriously contaminated by urban and rural pollutants from bothAccording to the characteristics of the typical peri-urban river, three different PS and NPS control

Keywords： peri-urban river     coupled hydrodynamic-water quality modeling     scenario analysis     river rehabilitation    

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standard of the basin pollution control project based on evolutionary game theory and by taking Xiangjiang River

Dongbin HU, Huiwu LIU, Xiaohong CHEN, Yang CHEN

Frontiers of Engineering Management 2019, Volume 6, Issue 4,   Pages 575-583 doi: 10.1007/s42524-019-0044-1

Abstract: By using data on the water quality of Xiangjiang River Basin, this paper calculates the rewards and penalties

Keywords： evolutionary game     ecological compensation standard     Xiangjiang River Basin    

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A holistic approach for evaluating ecological water allocation in the Yellow River Basin of China

YANG Zhifeng, CUI Baoshan, CHEN He

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 99-106 doi: 10.1007/s11783-007-0019-z

Abstract: The holistic approach in a basin scale was then used in the Yellow River Basin and it suggested thatThe ecological water requirements of inside river systems and outside river systems were respectively
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Factors influencing water quality indices in a typical urban river originated with reclaimed water

Jiao Zhang, Zhen Wei, Haifeng Jia, Xia Huang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0943-5

Abstract: The water quality in a typical urban river segment originated with reclaimed water in Beijing was monitoredfor two years to investigate the evolution of water quality along the river, and statistical analysiswas applied to determine factors influencing water quality of such river recharged by reclaimed waterHowever, turbidity and algal contents fluctuated temporally in the direction of river flow.with reclaimed water and one originated with natural water, the Shannon–Wiener index in the objective river

Keywords： Reclaimed water     Urban river     Turbidity     Algae     Flow rate    

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A 50-year sedimentary record of heavy metals and their chemical speciations in the Shuangtaizi River

Baolin LIU, Ke HU, Zhenglong JIANG, Fengge QU, Xin SU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 435-444 doi: 10.1007/s11783-011-0352-0

Abstract: Two parallel sediment cores collected from tidal flat located in the Shuangtaizi River estuary were analyzed

Keywords： Shuangtaizi River estuary     sediment core     heavy metals     pollution    

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Capacity analysis for cognitive heterogeneous networks with ideal/non-ideal sensing

Tao HUANG, Ying-lei TENG, Meng-ting LIU, Jiang LIU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 1,   Pages 1-11 doi: 10.1631/FITEE.1400129

Abstract: to irregular deployment of small base stations (SBSs), the interference in cognitive heterogeneous networks

Keywords： Cognitive heterogeneous networks     Markov chain     Stochastic geometry     Homogeneous Poisson point process (    

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Quantification of seepage in a multi-layered disconnected river-aquifer system

Jiang LI, Haizhu HU, Xiaomin MAO, Yi LIU

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 237-245 doi: 10.15302/J-FASE-2017135

Abstract: Quantification of seepage in disconnected river-aquifer systems is significant for local water managementdominant low permeability layers (including but not limited to the liners) in multi-layered disconnected river-aquiferA case study was conducted in the Yongding River with river-aquifer seepage calculated under variousconditions, including different river water levels (i.e., under the designated water level, drought stageproposed method was reliable and convenient for calculating long-term, large area seepage in disconnected river-aquifer

Keywords： infiltration     low permeability liner     multi-layered porous media     river-aquifer seepage    

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Title Author Date Type Operation

Study on hydrodynamic and synthetic water quality model for river networks

Zhang Mingliang,Shen Yongming

Journal Article

Study and Application of Steady Flow and Unsteady Flow Mathematical Model for Canal Networks

Zhang Mingliang,Shen Yongming

Journal Article

Theory and Practice of Hydrodynamic Reconstruction in Plain River Networks

Hongwu Tang, Saiyu Yuan, Hao Cao

Journal Article

Multi-scale evaluation of river health in Liao River Basin, China

Fei XU, Yanwei ZHAO, Zhifeng YANG, Yuan ZHANG

Journal Article

Novel interpretable mechanism of neural networks based on network decoupling method

Journal Article

Multiple Pollutants from Crop and Livestock Production in the Yangtze River: Status and Challenges

Journal Article

Integrated river basin management in rapidly urbanizing areas: a case of Shenzhen, China

Lei LIU, Xiaoming MA

Journal Article

Problems of Syrdarya river basin management

Serdar EYEBERENOV, Baijing CAO, Fengting LI

Journal Article

Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water

Haifeng JIA, Shuo WANG, Mingjie WEI, Yansong ZHANG

Journal Article

standard of the basin pollution control project based on evolutionary game theory and by taking Xiangjiang River

Dongbin HU, Huiwu LIU, Xiaohong CHEN, Yang CHEN

Journal Article

A holistic approach for evaluating ecological water allocation in the Yellow River Basin of China

YANG Zhifeng, CUI Baoshan, CHEN He

Journal Article

Factors influencing water quality indices in a typical urban river originated with reclaimed water

Jiao Zhang, Zhen Wei, Haifeng Jia, Xia Huang

Journal Article

A 50-year sedimentary record of heavy metals and their chemical speciations in the Shuangtaizi River

Baolin LIU, Ke HU, Zhenglong JIANG, Fengge QU, Xin SU

Journal Article

Capacity analysis for cognitive heterogeneous networks with ideal/non-ideal sensing

Tao HUANG, Ying-lei TENG, Meng-ting LIU, Jiang LIU

Journal Article

Quantification of seepage in a multi-layered disconnected river-aquifer system

Jiang LI, Haizhu HU, Xiaomin MAO, Yi LIU

Journal Article