The movement of raw materials can be one the most challenging tasks in open pit mining, with truck transportation representing largest factor mining costs and resulting major greenhouse gas (GHG) emissions. In this study, methods bulk within German hard-rock mines were investigated. Approximately 450 quarries studied for their production tonnage, lease areas, mined rock type as well processing ...

The selenium content of the 1989 harvest of wheat used for bread making in Scotland ranged from 0.028 microgram/g dry weight for home-grown wheat to 0.518 microgram/g for Canadian wheat. The tonnage values indicate that 13.8% of the wheat used in bread making came from Canada. This reflects in a calculated dietary intake of 31 micrograms/d which is well below the recommended levels of 70 and 55...

Airlifting technology utilized in deep-sea mining (DSM) industry was proposed in the 70s of last century, which was triggered by the discovery of vast amounts of mineral resources on the seabed. The objective of this paper is to assess the technological feasibility and profitability analyses in terms of solid production rate, energy consumption per tonnage of mineral, and profitability per tonn...

the invention of higher tonnage steamships and the opening of the suez canal instead of the way of southern africa, created significant changes on commercial affairs of 19th century. the iranian southern ports, accessing to the open seas through the persian gulf, had benefited such development. this article is indirectly trying to analyze the impact of the suez canal on iranian ports on the bas...

For many years, the Suez Canal (also known as Route) has been main route connecting Europe and Asia. However, compared with Route, Northeast Passage could save up to 41% of journey. The ship carbon intensity index (CII) rating system International Maritime Organization (IMO) came into effect in 2023. This study took an existing bulk carrier on Europe–Asia example calculate attained CII values a...