BACKGROUND Main objective of this study was to investigate the invasive activity of the liver fluke, Pseudamphistomom truncatum against the Caspian seal (Pusa caspica) and was exemplified at the gross, light microscopy (LM) and electron microscopy (EM) levels. METHODS The study was done on a freshly dead Caspian Seal in the southern coast of Caspian Sea. The checked Caspian seal probably bein...

My dissertation concentrates on several aspects of supply chain management and economic valuation of real options in the natural gas and liquefied natural gas (LNG) industry, including gas pipeline transportation, ocean LNG shipping logistics, and downstream storage. Chapter 1 briefly introduces the natural gas and LNG industries, and the topics studied in this thesis. Chapter 2 studies how to ...

caspian region is on the receiver of caspian sea with five coastal states including of iran, russia, azerbaijan, turkmenistan and kazakhstan - in the surrounding sea, due to having common points in the features of natural geography, special location, political and cultural and historical background, is known as a geopolitical region. following the collapse of the soviet ::::union::::, due to ch...

The Ponto-Caspian mysid shrimp Hemimysis anomala was found in Ireland for the first time in April 2008. During 2009 it was found throughout most of the Shannon River Navigation (~250km) occurring in swarms at estimated densities of ~6 per litre in shallows and in lower densities at depths of ~20m where its distribution overlaps with the native Mysis salemaai. Broods were found from March to Sep...

Introduction: The safety of the Unites States’ natural gas supply is of prime importance since 30% of the energy produced in the country is derived from it. Natural gas is supplied through a million miles of vast pipeline network [1]. Pipeline companies have an impressive safety record due to the proactive role of standards and inspection of pipelines. Since the pipelines are getting old, there...

This paper simulates transient compressible adiabatic gas flows in a long pipeline following a catastrophic failure using an implicit high order finite difference scheme as a discretisation technique for convective terms. A rupture is assumed to be occurred accidentally at a distance from the feeding point of a pipeline where the pipeline being divided into two distinct sections, high and low p...

The fundamental equations which describe the flow through gas and liquid pipelines are formally identical. However, the wide gap between the compressibility ranges of gases and liquids leads to quite different transport characteristics for both kinds of media. While for oil pipelines and pump stations specific topics like batch operation, surges, and possible slack line scenarios have to be con...

It is in the interest of any gas company to maintain the value of its pipelines and to protect them effectively against damage caused by third parties. As a result of global progress in high-resolution remote sensing and image processing technology, it is now possible to design natural gas pipeline monitoring systems with remote sensors and context-oriented image processing software. Recent dev...