Heavy metals that enter marine environment and remain in the water as well as the sediments are accumulated by aquatic organisms, thus becoming highly good indicators to monitor metal accumulation in the long run. Metals are potentially harmful to humans and most organisms at varied levels of exposure and absorption. Northern East Mediterranean Sea is a crucial region as it is an area, shared b...

Electric motors are the largest consumer of world electric energy, consuming more than twice as much as lighting, the next largest consumer. Electric motors account for between 43 and 46% of all global electricity consumption approximately. They give rise to about 6 040 Mt of CO2 emissions. End‐users approximately spend USD 565 billion per year on electricity [1]. In recent years...

electric motors are the largest consumer of world electric energy, consuming more than twice as much as lighting, the next largest consumer. electric motors account for between 43 and 46% of all global electricity consumption approximately. they give rise to about 6 040 mt of co2 emissions. end‐users approximately spend usd 565 billion per year on electricity [1]. in recent years, increase in e...

Introduction: It is difficult to maintain fresh frozen plasma (FFP) at cryogenic temperatures during marine transportation, even with a power supply. Methods: In this study, without supply and below -30 °C, we used BioBoxes for transportation of coronavirus disease vaccines, two demonstration experiments involving round-trip FFP Hachijojima Island (200 km from Tokyo) Ogasawara (1,000 Tokyo). Re...

Usage of the new and alternative clean fuel is becoming a hot topic in marine transportation in accordance with environmental regulations of I.M.O. Using L.N.G as the ship fuel is a reliable and long term solution for environmental issues. Iran owing to its large number of natural gas fields and unique geographical position, has adequate potential to provide services to shipping fleets. Finding...

In this paper, we present mathematical analyses to consider the effect of material properties on the sensitivity of the Microelectromechanical systems (MEMS) piezoelectric hydrophone and improve the sensitivity by choosing the proper material. The selected structure in the present paper is a piezoelectric hydrophone able to work at low frequencies. The piezoelectric hydrophones are widely used ...