in coastal areas, hydrodynamic factors make changes in shorelines geomorphology. this can affect coastal facilities and cause hazards to human societies in the areas. this study has investigated the influence of wave and tide properties on khamir port, hormoz strait in coast of persian gulf. the purpose of the study is to make a mathematical regional and local modeling of water level fluctuatio...

New 2-phenylpyridazinones, analogs o f 4-chloro-5-methylamino-2-phenylpyridazin-3(2H)ones, were assayed for their phytotoxic activity to interfere with plant pigment formation. Six derivatives with — SCF3, — OCF2CH FCF3, — O CH F2, — CN, or — Br in meta position o f the phenyl ring exhibited similar or better bleaching activity than the m -CF3 analog (norflurazon). The activity is predominantly...

Abstract Based on the sensitivity of oysters to water environmental factors, a hydrodynamic model in Tongzhou Bay, southwest China’s Yellow Sea, is set up analyse impact and suspended sediment Liyashan Oyster Reef. The results show that characteristics waters near oyster reef will not be significantly affected by implementation project. diffusion range concentration greater than 10mg/L caused c...

In this study, a GIS-based tool has been developed to evaluate and predict coastal water quality issues for the Pearl River Estuary (PRE). The developed system consists of three key components. The first component is a database of hydrodynamic and water quality data collected from various public domains. This database is linked with the GIS for efficient retrieval, display, and analysis of hist...

a lattice boltzmann method is applied to demonstrate the comparison results of simulating natural convection in an open end cavity using different hydrodynamic and thermal boundary conditions. the prandtl number in the present simulation is 0.71, rayleigh numbers are 104,105 and 106 and viscosities are selected 0.02 and 0.05. on-grid bounce-back method with first-order accuracy and non-slip met...

Bridge structures along the coasts are often subjected to hydrodynamics loads of various forms and intensities. The most dramatic loads are those due to tsunamis and storm surges as vividly demonstrated by images of the Dec. 2004 Indian Ocean Tsunami and the Sept. 2005 Katrina Hurricane in the Gulf of Mexico. Other loads include wave impact, current induced scour, and floating debris impact. Th...