نتایج جستجو برای: mine haul road

تعداد نتایج: 96568  

Journal: :Applied sciences 2022

A system that can acquire and share information about the environment from vehicles using various sensors smartphones was developed to prevent accidents may occur on mine haulage roads. light detection ranging sensor an accelerometer in a smartphone were used determine road surface conditions at mining site, dust gas measure atmospheric environment. The GPS function of utilized obtain location ...

2004
Jean-François Cordeau Gilbert Laporte Martin W.P. Savelsbergh Daniele Vigo

Journal: :Current Biology 2010
Nigel Williams

Earlier oil spills suggest the Gulf may be in for the long haul to recover from this year's disaster.

Journal: :Algorithms 2017
Fan Wu Kun Fu Yang Wang Zhibin Xiao Xingyu Fu

Location prediction has attracted much attention due to its important role in many location-based services, such as food delivery, taxi-service, real-time bus system, and advertisement posting. Traditional prediction methods often cluster track points into regions and mine movement patterns within the regions. Such methods lose information of points along the road and cannot meet the demand of ...

Journal: :International Journal of Hydrogen Energy 2023

Shifting from fossil fuels to clean alternative fuel options such as hydrogen is an essential step in decarbonising the road freight transport sector and facilitating efficient transition towards zero-emissions goods distribution of future. Designing economically viable competitive Hydrogen Supply Chain (HSC) support accelerate widespread adoption powered Heavy Goods Vehicles (H2-HGVs) is, howe...

2002
Karen R. Smilowitz Alper Atamtürk

This paper studies the possible integration of long-haul operations by transportation mode and service level (defined by guaranteed delivery time) for package delivery carriers. Specifically, we consider the allocation of deferred items to excess capacity on alternative modes in ways that allow all transportation modes to be utilized better. Model formulation and solution techniques are discuss...

2007
J. Gholamnejad M. Osanloo

Long-term production planning design is a major step in mine planning, because it determines the economic outcome of a project. Also long-term planes act as a guide for medium and short-term production scheduling. Because there are a large number of blocks within the ultimate pit limit, the pit can be divided into a series of sub-pits commonly called push backs, cut backs or phases. These push ...

Journal: :International Journal of Coal Science & Technology 2022

Abstract The retained coal in the end slope of an open-pit mine can be mined by highwall mining techniques. However, instability mechanism reserved rib pillar under dynamic loads haul trucks and static overlying strata is not clear, which restricts safe efficient application mining. In this study, load-bearing model was established, cusp catastrophe theory safety coefficient were considered, cr...

1998
Thomas N. Hubbard Michael Crum

This paper uses a comprehensive survey of the entire U.S. trucking fleet to investigate patterns in the terms of trade between carriers and shippers during 1987 and 1992. Analysis of the 1992 data suggests that internal procurement and longterm contracts are used to alleviate hold-up problems associated with the use of specific trailers. The relationships between governance structure and measur...

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