Population parameters and length-weight relationship of deep flounder (Pseudorhombus elevatus ) in northwest of Persian Gulf (Khuzestan coastal waters, Iran)

S. A. R. Hashemi; S. A. Taghavimotlagh; R. Ghorbani; A. Hedayati

Volume 3, Issue 1 , March 2013, , Pages 1-6

  During this study from December 2009 to November 2011, 363Deep flounder fish were caught and their weight and length were measured. The caught fish included 18 males, 200 females and 155 immature fishes. The mean, maximum and minimum total lengths were 264 ± 57 (mean ± SD), 415 mm and 115 ...  Read More

Fuzzy consequence modelling of hydrocarbon offshore pipeline

M. Kasaeyan; J. Wang; I. Jenkinson; M. R. Miri Lavasani

Volume 1, Issue 1 , December 2011, , Pages 3-12

  The traditional event tree analysis uses a single probability to represent each top event. However, it is unrealistic to evaluate the occurrence of each event by using a crisp value without considering the inherent uncertainty and imprecision a state has. The fuzzy set theory is universally applied to ...  Read More

Pipeline upheaval buckling in clayey backfill using numerical analysis

A. Koochekali; B. Gatmiri; A. A. Koochekali

Volume 3, Issue 2 , June 2013, , Pages 43-50

  Offshore pipelines used for oil and gas transportation are often buried to avoid damage from fishing activities and to provide thermal insulation. Thermal expansion and contraction of the pipeline during operation can lead to lateral or upheaval buckling. A safe buried pipeline design must take into ...  Read More

Implementing Self-upending for lightweight Jackets in Persian Gulf

S.A. Amid; S. Allahyaribeik

Volume 5, Issue 2 , June 2015, , Pages 55-64

  Steel-structured jacket or template platforms have been extensively installed in Persian Gulf offshore oil & gas fields. For the jackets in the water depth range of 40 meters in this region, utilizing the self-upending concept has been investigated. It has been concluded that designing the light ...  Read More

Study of Metals Concentrations in Surface Sediments of the Persian Gulf Coastal Area (Bushehr Province)

A. Biati; H. Nikoomaram; A. R. Karbassi

Volume 2, Issue 1 , March 2012, , Pages 75-80

  Since heavy metals are considered as one of the major pollutants threatening, the main goal of this study was to bring out the concentrations of Pb, Zn and Mn in the surface sediments off Bushehr in the Persian Gulf. For this purpose, after collection of samples, the concentrations of the three metals ...  Read More

Investigation of vortex-induced vibration phenomenon in verticallong circular slender structure with non-uniform flows
Volume 3, Issue 3 , July 2013, , Pages 105-112

  Analyzing the vortex-induced vibration of a slender marine structure withlength to diameter ratio up to 200 is the objective of this study. This slender is free to move in both in-line and cross flow directions and immersed completely in water. Three different types of shear currents pass on it and cause ...  Read More

Applying zoning method for numerical modeling of two immiscible fluid interface motion in an underwater tank using BEM

M. Ghodsi Hasanabad

Volume 2, Issue 2 , June 2012, , Pages 135-140

  In this study, boundary element method was used to model sea wave propagation on a hemisphere shape under water tank and oil-water common surface oscillation in the tank. Also, kinematic and dynamic oundary conditions of free surface and common surface of oil and water were discritized by Finite ...  Read More

BEM-FDM modeling of water free surface interaction with trapped air in OWC chamber for calculating generated power

M. Ghodsi Hasanabad

Volume 2, Issue 3 , August 2012, , Pages 177-184

  Free surface modeling plays an important role in some ocean structures design, especially in Oscillating Water Column (OWC) devices. Boundary element method (BEM) is a suitable method for free surface modeling due to its simplicity, quick solving, and low data storage requirement. In this paper, BEM ...  Read More

Cytogenetic damage induced by crude oil in Anodonta cygnea (mollusca,bivalvia) assessed by the comet assay and micronucleus test

S. Eskandari; H. Mozdarani; A. Mashinchian Moradi; M. H. Shahhosseiny

Volume 2, Issue 4 , December 2012, , Pages 215-224

  Crude oil is enriched in polycyclic aromatic hydrocarbons (PAHs). Many PAH analogs have proved to potentially damage DNA. DNA damage can be assessed using various biomarkers to find out the degree of genotoxicity of pollutants following in vitro exposure. In this research the comet assay and micronucleus ...  Read More

Determination of sediments diameter using acoustic waves

sara allahyaribeik; madjid abbaspour; amir hossein javid

Volume 4, Issue 1 , February 2014, , Pages 1-6

  The use of acoustic waves in researches related to sea water is of most importance among scientists recently. Since these waves are the only waves, transmitted in water with lowest attenuation and high speed, they can be used in many scientific fields. The main goal of this research is to better understand ...  Read More

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

Concentration of heavy metals in liver and muscle tissue of Liza auratain estuaries of the rivers Babolroud, TajanandGorganroud

A. MashinchianMoradi; M. Pirouznezhad

Volume 3, Issue 1 , March 2013, , Pages 7-12

  The present study was carried out in 2011 to measure concentration of heavy metals chromium and tin in liver and muscle tissue of Liza aurata (golden grey mullet) in estuaries of the rivers Babolroud, Tajan and Gorganroud. Accordingly, after sampling the target are asandisolating muscle (18samples) and ...  Read More

The layered structure in exchange flows between two basins (Middle and Southern basins of the Caspian Sea)

A. A. Bidokhti; A. Shekarbaghani

Volume 1, Issue 1 , December 2011, , Pages 13-22

  Ocean waters often show layered structures especially where exchange flow between two basins occurs. These structures are often attributed to processes such as double.diffusive convection, internal waves, turbulent modulated mixing. In this paper by examining the vertical structures of temperature, salinity ...  Read More

Experimental investigation of wave parameters effect on damage of the berm reshaped seawall under irregular wave attack

A. R. Bakhtiari; M. Fathi Moghadam

Volume 3, Issue 2 , June 2013, , Pages 51-56

  This paper presents an experimental study the influence of wave parameter on the damage of reshaping seawall, model tests have been performed in several water level conditions. The experiments of physical modeling of this research have been done in the flume of the Soil Conservation and Watershed Management ...  Read More

Materials performance assessment of protective layer of rubble mound breakwaters, southern coast of Iran

P. . Atabak; S. Allahyaribeik; F. Azarsina

Volume 4, Issue 2 , June 2014, , Pages 57-64

  This study aims to examine the performance of the rock materials in the protective layer of rubble-mound breakwaters in southern Iran, from Rostami Port in Bushehr Province to Beris Port in Sistan and Baluchestan Province. Field inspections were carried out on a great number of rubble-mound breakwaters ...  Read More

Analysis of air injection system for drag reduction in high speed vessels using numerical simulation software ANSYS-Fluid Flow

M. Soltaninejad; F. Azarsina; A.H. Javid

Volume 5, Issue 2 , June 2015, , Pages 65-75

  Many existing phenomena in nature are considered new design ideas in various fields of industry. Bionics is the application of biological methods and systems found in nature to the study and design of engineering systems and modern technology. By performing bionic review, the researchers found the penguins ...  Read More

Metal bioaccumulation in Persian sturgeon after sublethal exposure

F. Shariati; A. Esmaili Sari; A. Mashinchian Moradi; M. Pourkazemi

Volume 2, Issue 1 , March 2012, , Pages 81-90

  Tissue metal accumulations (gills, liver, kidney and muscle) in Persian sturgeon (Acipenser persicus) were compared folowing exposure to sublethal levels of waterborne Cd (50, 400 and 1000 μg•L-1) after periods of 1, 2, 4 and 14 days. The obtained results indicate that at the end of 4 and 14 ...  Read More

Seasonal Variations of Seawater Properties in the Southwestern Coastal Waters of the Caspian Sea
Volume 3, Issue 3 , July 2013, , Pages 113-124

  Seasonal variations of the seawater properties (e.g. temperature, salinity, density and chlorophyll-a) in western part of the southern coastal waters of the Caspian Sea near the Iranian coast were studied. A portable CTD probe was applied for profiling from sea surface to bottom at 23 stations. Maximum ...  Read More

Simulation of static sinusoidal wave in deep water environment with complex boundary conditions using proposed SPH method

A. H. Javid; M. Abbaspour; S. A. Mirbagheri; H. JanfeshanAraghi

Volume 2, Issue 2 , June 2012, , Pages 141-148

  The study of wave and its propagation on the water surface is among significant phenomena in designing quay, marine and water structures. Therefore, in order to design structures which are exposed to direct wave forces, it is necessary to study and simulate water surface height and the wave ...  Read More

Evaluation of DNA damage in Cyprinus carpio (L. 1758) exposedto malathion using Single Cell Gel Electrophoresis

A. Mashinchian Moradi; H. Mozdarani; P. Alidoust Salimi; M. Alidoust Salimi

Volume 2, Issue 3 , August 2012, , Pages 185-188

  Malathion (S-(1, 2-dicarboethoxyethyl) O, O-dimethyl phosphorodithioate) is one of the organophosphate pesticides comprehensively used in agriculture fields throughout the world. In spite of widely used, little information are available about DNA damage in aquatic organisms. Therefore, the present study ...  Read More

Analysis of red tide in strait of Hormuz in 2008-2009 using ocean satellite data

S. Hamzehei; A.A. Bidokhti; M. S. Mortazavi; A. H. Gheiby

Volume 2, Issue 4 , December 2012, , Pages 225-232

  pollutions. Recently, both Persian Gulf and Gulf of Oman are experiencing several types of pollution including oil spills and heavy metal pollutions as well as Harmful Algal Bloom (HAB) caused by biological and environmental changes. Theiroccurrence of the red tide or harmful algal bloom during fall ...  Read More

A study of ocean thermal energy conversion in the southern Caspian Sea

vahid niksima; kamran lari; masoud torabiazad

Volume 4, Issue 1 , February 2014, , Pages 7-14

  Nowadays, in consideration of environmental issues and limitation of fossil fuels, there is a particular consideration of renewable energy including Ocean Energy, that can extracted going through various methods such as Wave Energy, Tidal Energy, Salinity Gradient, OTEC: Ocean Thermal Energy Conversion.Herein ...  Read More

Removal of heavy metals (lead, cadmium, zinc, nickel and iron) from water by bio-ceramic absorbers of hydroxy-apatite microparticles

N. Moayyeri; K. Saeb; E. Biazar

Volume 3, Issue 1 , March 2013, , Pages 13-16

  Heavy metals are highly poisonous in the environment, even in small quantities, and endanger certain species and all live beings. Current methods of removing heavy metals from aqueous media include chemical sequestration, ion exchange, surface absorption, membrane processes, oxidation and revival procedures ...  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

Photocatalytic Degradation of Diazinon From Marine Source Using TiO2/SiO2 Thin Layer Coated on Glass

P. Aberoomand Azar; Sh. Moradi; Sh. Piramoon; A. Mashinchian Moradi

Volume 1, Issue 1 , December 2011, , Pages 23-28

  TiO2 photo catalyst was prepared in presence of nano SiO2 and Hydroxy Propyl Cellulose (HPC) by sol gel method with Titanium Tetra IsoproPoxide (TTIP) as titanium precursor. Additional effect of HPC in preparation of nano catalyst, and photo catalyst properties measured and characterized by FT-IR, FT-Raman ...  Read More