Effect of Thermocline Formation on Underwater Acoustic Waves Propagation in Persian Gulf

V. Zarepoor; E. Ezam; S Allahyaribeik

Volume 5, Issue 1 , January 2015, Pages 1-13

  Thermocline layer have remarkable effects on acoustic propagation in Persian Gulf environment. So far, no comprehensive research has been conducted to explore thermocline layer, especially its characteristics including top, thickness, and thermal gradient of thermocline in Persian Gulf. Besides, effects ...  Read More

Optimization of concrete structure mixture plan in marine environment using genetic algorithm

M. Abdoli; F. Azarsina; M.H. Givian Rad

Volume 5, Issue 1 , January 2015, Pages 15-21

  Today due to increasing development and importance of petroleum activities andmarine transport as well as due to the mining of seabed, building activities such as construction of docks, platforms and structures as those in coastal areas and oceans has increased significantly. Concrete strength as one ...  Read More

Heavy Metal Ions on Titanium Dioxide Nano-Particle: Biomagnification in an Experimental Aquatic Food Chain

M. Hosseini; SH. Rahmanpour; A Mashinchian Moradi

Volume 5, Issue 1 , January 2015, Pages 23-29

  Heavy metal metals are non-biodegradable, have a remarkable ability to transfer through food chains and are potentially toxic for organisms.They are introduced tomarine environment via different anthropogenic sources. In this study, the ability of titanium dioxide nano-particle in transfer of Cr, Cu, ...  Read More

Investigation of Influence of Mooring system in Response of FPSO

M. Hosseini manash; M.J. Ketabdari

Volume 5, Issue 1 , January 2015, Pages 31-40

  FPSOs are useful in newly established offshore oil regions where there is no pipeline infrastructure in place, or in remote locations where building a pipeline is cost-prohibitive. In this study, hydrodynamic analysis of FPSO is inquired based Boundary Element Method (BEM) and wave forces/moments, ...  Read More

Investigation of geometric parameters of seawalls on the amount of earth subsidence and its horizontal displacement by FLAC 3D software

F. Orak; M. Bakhtiari; H. Bahrami

Volume 5, Issue 1 , January 2015, Pages 41-47

  Seawalls are built for Protecting of beaches against waves and preventing the progression of water to the beach. For a proper understanding about these constructions, a suiTable information about applied loads on these constructions should be existed. One of the important load that applied on these constructions ...  Read More

Design and construction of 6-component balance dynamometer for measurement of the forces, moments andmotions of ship models in the towing tank

M. Atashrazm Jirande; F. Azarsina; M.S. Seif

Volume 5, Issue 1 , January 2015, Pages 49-54

  During design spiral of a merchant ship or a naval vessel, it is important to perform towing tank tests in order to measure its performance either in calm water maneuvers or in waves for seakeeping performance. Also, to optimize a hydrodynamic design, towing tank tests are advantageous.This article presents ...  Read More