نتایج جستجو برای: hydrodynamic transmission system

تعداد نتایج: 2443208  

Journal: :international journal of environmental research 2014
z. kazemi n.b. hashim h. aslani z. liu p.m. craig

the johor strait is an estuarine system located on the coast of the state of johor in malaysia.the western part of johor strait is a shallow estuarine located between causeway and pulai river. ahydrodynamic model was calibrated based on the environmental fluid dynamic code (efdc) from 4th to 17th of october, 2009. in this calibration, the efdc hydrodynamic model was configured to simulate time ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
mohammad irani ramin bozorgmehry boozarjomehry sayed mahmoud reza pishvaie ahmad tavasoli

a numerical framework has been proposed to model the interacting effects of mixture non-ideality and mass transfer on hydrodynamics of a multiphase system using cfd methods.mass transfer during condensation and vaporization is modeled by chemical potential at the liquid-vapor interface. species mass transfers are related to the diffusion at the interface which in turn is related to the concentr...

Biocompatible hydroxyapatite nanocomposites are biocompatible, biodegradable and nontoxic have been paid many attentions as one of the most suitable vehicle for drug delivery use. Our objective in this work was to prepare and characterize caseins based HA nanocomposite in a colloidal form for drug delivery purposes. Casein biopolymer was firstly extracted from skimmed milk by adding acetic acid...

Biocompatible hydroxyapatite nanocomposites are biocompatible, biodegradable and nontoxic have been paid many attentions as one of the most suitable vehicle for drug delivery use. Our objective in this work was to prepare and characterize caseins based HA nanocomposite in a colloidal form for drug delivery purposes. Casein biopolymer was firstly extracted from skimmed milk by adding acetic acid...

2015
Morteza Kolahdoozan Omidreza Taheri Hadi Ghasemi

A new type of floating breakwaters (FBs) is introduced by changing the longitudinal section of π-shaped FBs into a stepwise shape. The hydrodynamic performance of so-called step floating breakwaters (SFBs) is evaluated through 144 experiments on SFBs of different types as well as π-shaped FBs. Initially, using the experimental data, the performance of SFBs was evaluated by comparison against π-...

2015
Olivier Boutron Olivier Bertrand Annie Fiandrino Alain Sandoz

The spatiotemporal structure of wind-driven circulation patterns and associated water exchanges can drive important bio-hydrodynamic interactions in shallow lagoons. The Vaccarès lagoon system is a complex shallow hydrosystem located in the central part of the Rhône Delta (France). It is internationally recognized as part of a biosphere reserve within the framework of UNESCO’s Man and Biosphere...

2000
Isabelle Choquet Pierre Degond Christian Schmeiser

A set of hydrodynamic equations modeling strong ionization in semiconductors is formally derived from a kinetic framework. To that purpose, a system of Boltzmann transport equations governing the distribution functions of conduction electrons and holes is considered. The charge carriers obey a degenerate gas statistics and their kinetic energy relations are arbitrary. The umklapp collisions are...

The present study aims at study on combined effect of zinc oxide nanoparticles (ZnO) with common agricultural fungicides. Nanoparticles were synthesized using chemical reduction process and characterized by UV-Visible spectroscopy, X-ray diffraction (XRD), Dynamic Light Scattering (DLS) and Transmission Electron Microscopy (TEM). Synthesized nanoparticles were observed to be in size range of 12...

Journal: :international journal of marine science and engineering 0
m. a. nezammahalleh geomorphology, physical geography department, geography faculty, university of tehran, tehran m. yamani geomorphology, physical geography department, geography faculty, university of tehran, tehran sh soltani department of civil engineering, neka branch, islamic azad university, neka, iran a. maldar badeli department of engineering and technology, golestan university, aliabad katool, iran a. rastegar department of engineering and technology, golestan university, aliabad katool, iran

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...

2013
Gerhard Sandmann Peter Böger

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...

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