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3篇 您的检索式:作者名="HU Huanting"
    题名 作者 年代 出处 被引量
1THREE DIMENSIONAL MATHEMATICAL MODEL OF SEDIMENT TRANSPORT IN ESTUARINE REGIONS-A CASE STUDY OF THE HAIHE RIVER MOUTH显示文摘A 3-D numerical model for simulating tidal flow and sediment transport in the estuarine regions is presented in this paper. The model adopts -coordinate system and carries out -coordinate transformation to the basic equations, which ensure that all horizontal area has equal numbers of calculation points in vertical direction, this method provides higher distinguishable rate to the flow and sediment transport. Under the -coordinate system, the Galerkin finite-element method is applied for horizontal domain by using a new specially interpolating shape functions, while a finite difference approximation is employed over depth. The model can be used even in the situations with a considerable variety in the water depth in the computational domain. The model is verified by a test for which analytical solutions are available and then applied to simulate the tidal current and sediment transport of the Haihe River Mouth. A modeling system of sediment transport is established for applying to muddy estuary of North China. The comparison with the field data shows that the model can well simulate the evolution process in the estuary.BAI Yuchuan, SHEN Huanting, and HU Shixiong ( Asso. Prof. Dr., Institute for Sedimentation on River and Coast Engineering, Tianjin University, Tianjin, 300072, China 2 Prof., The State Key Laboratory of Estuarine and Coastal Research, East China Normal Un 2000International Journal of Sediment Research2000,15,4:7
2Metal−Organic Frameworks as a Subnanometer Platform for Ion−Ion Selectivity显示文摘CONSPECTUS:Selective ion transport in nanoporous membranes has become a research hot spot in the fields of both nanofluidics and membrane separation because of its wide potential applications,such as ion separation,energy harvesting and conversion,and ion sensing.Developing nanofluidic devices or membranes with nanoconfined to subnanoconfined space is the core part of nanofluidic studies because the materials used to construct nanofluidic devices determine the exploration potential of the ion-transport performance.Jun Lu Xiaoyi Hu Kevin M.Ung Yinlong Zhu Xiwang Zhang Huanting Wang 2022Accounts of Materials Research2022,3,7:1
3The evaluation of biological productivity by triple isotope composition of oxygen trapped in ice-core bubbles and dissolved in ocean:a review显示文摘The ^(17)O anomaly of oxygen(Δ^(17)O,calculated from δ^(17)O and δ^(18)O)trapped in ice-core bubbles and dissolved in ocean has been respectively used to evaluate the past biosphere productivity at a global scale and gross oxygen production(GOP)in the mixed layer(ML)of ocean.Compared to traditional methods in GOP estimation,triple oxygen isotope(TOI)method provides estimates that ignore incubation bottle effects and calculates GOP on larger spatial and temporal scales.Calculated from TOI of O_(2) trapped in ice-core bubbles,the averaged global biological productivities in past glacial periods were about 0.83-0.94 of the present,and the longest time record reached 400 ka BP(thousand years before the present).TOI-derived GOP estimation has also been widely applied in open oceans and coastal oceans,with emphasis on the ML.Although the TOI method has been widely used in aquatic ecosystems,TOI-based GOP is assumed to be constant at a steady state,and the influence of physical transports below the ML is neglected.The TOI method applied to evaluate past total biospheric productivity is limited by rare samples as well as uncertainties related to O_(2) consumption mechanisms and terrestrial biosphere’s hydrological processes.Future studies should take into account the physical transports below the ML and apply the TOI method in deep ocean.In addition,study on the complex land biosphere mechanisms by triple isotope composition of O_(2) trapped in ice-core bubbles needs to be strengthened.ZHOU Yaqian PANG Hongxi HU Huanting YANG Guang HOU Shugui 2022Advances in Polar Science2022,33,2:0
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