A5023090653- Coastal and Marine Dynamics
- Tropical and Extratropical Cyclones Research
- Coastal wetland ecosystem dynamics
- Ocean Waves and Remote Sensing
- Computational Fluid Dynamics and Aerodynamics
- Hydrology and Watershed Management Studies
- Aeolian processes and effects
- Hydrology and Sediment Transport Processes
- Conducting polymers and applications
- Silicon Carbide Semiconductor Technologies
- Hydraulic flow and structures
- Flood Risk Assessment and Management
- Fluid Dynamics and Turbulent Flows
- GaN-based semiconductor devices and materials
- Soil erosion and sediment transport
- Groundwater flow and contamination studies
- Meteorological Phenomena and Simulations
- Oceanographic and Atmospheric Processes
- Organic Electronics and Photovoltaics
- Advancements in Semiconductor Devices and Circuit Design
- Wind Energy Research and Development
- Analytical Chemistry and Sensors
- Semiconductor materials and devices
- Fluid Dynamics and Vibration Analysis
- Advanced Numerical Methods in Computational Mathematics
NARI Group (China)
2020-2024
U.S. Army Engineer Research and Development Center
2016-2023
United States Army
2019-2023
Plastic Surgery Hospital
2023
East China Normal University
2020-2023
University of Mississippi
2010-2022
East China University of Technology
2022
Southeast University
2019-2021
ORCID
2021
United States Army Corps of Engineers
2016-2020
An emulsion process has been developed for the direct synthesis of emeraldine salt polyaniline (PANI) that is soluble in organic solvents. The entails formation particles with a mean hydrodynamic diameter 150 nm and consisting water-soluble solvent (e.g., 2-butoxyethanol), water-insoluble acid dinonylnaphthalenesulfonic acid), aniline, water. Aniline protonated by to form which partitions into phase. As oxidant (ammonium peroxydisulfate) added reaction mixture, PANI intermediates are formed...
Growing environmental concerns regarding the use of heavy metals in coating formulations have led to a new strategy using inherently conducting polymers (ICP), such as polyaniline (PANI), key component. The principal potential advantage offered by ICP technology is toleration pinholes and minor scratches. This paper introduces PANI that are doped with phosphonic acids. Salt fog exposure tests point acid salts being more effective for corrosion protection than traditionally used sulfonic...
Rivers and streams contribute significant quantities of methane (CH4) to the atmosphere. However, there is a lack CH4 flux ebullitive (bubble) emission data from urban rivers, which might lead large underestimations global aquatic emissions. Here, we conducted high-frequency surveys using boundary layer model (BLM) supplemented with floating chambers (FCs) bubble traps investigate seasonal diurnal variability in emissions eutrophic river evaluate whether contribution bubbles important. We...
A numerical method based on optimal control theories for identifying Manning's roughness coefficients (Manning's n) in modeling of shallow water flows is presented. The are difficult to be determined especially when the spatial variation significant, and usually estimated empirically. present methodology applied determine values spatially distributed parameters, which give least overall discrepancies between simulations measurements. Through a series systematic studies identify n both...
This paper presents a physics-based two-dimensional (2D) numerical model to simulate overland flows typically generated by rainfall of storm event or multiple events in natural terrain with complex topography, landform, soil characteristics, and land use. The is based on the 2D fully nonlinear shallow-water equations (SWEs) which tempospatial variations intensity infiltration are taken into account as source sink terms, respectively. Green-Ampt equation used infiltration. Due strong...
The linear stability of incompressible flows is investigated on the basis finite element method. two-dimensional base computed numerically over a range Reynolds numbers are perturbed with three-dimensional disturbances. three-dimensionality in flow associated secondary instability identified precisely. First, by using theory and normal mode analysis, partial differential equations governing evolution perturbation derived from linearized Navier–Stokes equation slight compressibility. In terms...
In this paper, a numerical method based on optimal control theories and adjoint analysis for identifying Manning's roughness coefficients in the full nonlinear de Saint Venant equations is presented. order to make parameter identification applicable most natural river flows, special attention complex channel network paid. The of one-dimensional (1D) are obtained by means variational approaches. To solve with confluences, internal boundary conditions confluences also derived from approaches...
Honeycomb macroporous films fabricated by the "breath figures" method were composed of poly2-vinylpyridine (P2VP) distributed in holes polystyrene (PS). The porous exhibited reversible behavior responding to water and different solvent vapors. When film was treated with water, honeycomb pattern would change hexagonal islandlike pattern. Once heated remove emerged again. exposed vapors, same process appeared. Carbon disulfide (CS2), toluene (TOL), tetrahydrofuran (THF) vapors induced into...
A quasi-three-dimensional coastal area morphological (Q3DCAM) model has been developed using the process-based approach. It is for simulating complex multiscale processes, primarily morphodynamic changes of seabed. This software package integrated three key submodels irregular wave deformations, nearshore currents, and processes. The capability depth-averaged to consider vertical flow structure inside surf zone cross-shore movement mechanisms e.g., undertow mass flux. To this end,...
By means of the physical process-based modeling approache to computing coastal and estuarine hydrodynamic morphodynamic processes, an integrated model system was developed simulate tides, waves, currents, winds, sediment transport, morphological changes in regions. This paper presents overview this process consisting modules for simulating random wave deformations, tidal shortwave-induced transport changes. The individual included were validated by processes laboratory experiements field...
This paper presents two case studies of post-dam removal sedimentation in the United States. Two similar 1D channel evolution simulation models were used: CCHE1D and CONCEPTS. The first is model validation application to assess morphological response Marmot Dam Sandy River, Oregon. Simulation results showed a persistent erosion sediments from reservoir over 10-year period. To minimize changes downstream dam site, CCHE1D-based optimization applied find optimal sediment diversion site. show...
An optimal flow control methodology based on adjoint sensitivity analysis for controlling nonlinear open channel flows with complex geometries is presented. The equations, derived from the Saint-Venant are generally capable of evaluating time-dependent sensitivities respect to a variety variables under conditions and cross-section shapes. internal boundary equations at confluence (junction) by variational approach make model applicable solve problems in network over watershed. As result, an...