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  • combustion
  • Airborne soot produced by wildfires and fossil-fuel combustion and transported to the remote McMurdo Dry Valleys of Antarctica contains levels of black carbon too low to contribute significantly to the melting of local glaciers, according to a new study by researchers supported by the National Science Foundation (NSF). (phys.org)
  • With the development of the combustion engine and the automobile around 1900, road transport became more competitive again, and mechanical private transport originated. (wikipedia.org)
  • fuels
  • MoMo covers all transport modes and includes modules on local air pollutants and on the cost of fuels, vehicles and infrastructure, as well as analysis of the material needs for new vehicles. (iea.org)
  • Pipelines exist for the transport of crude and refined petroleum, fuels - such as oil, natural gas and biofuels - and other fluids including sewage, slurry, water, and beer. (wikipedia.org)
  • accumulation
  • Samples taken from a snow pit in the accumulation region of the Commonwealth Glacier suggest the black carbon transported from beyond the continent is not sufficient to reduce the albedo-the glacier's ability to reflect light-to a degree that would increase melting. (phys.org)
  • enables
  • The Mobility Model (MoMo) is a technical-economic database spreadsheet and simulation model that enables detailed projections of transport activity, vehicle activity, energy demand, and well-to-wheel greenhouse gas (GHG) and pollutant emissions according to user-defined policy scenarios to 2060. (iea.org)
  • Transport is important because it enables trade between people, which is essential for the development of civilizations. (wikipedia.org)
  • time
  • Knowledge of sediment transport is most often used to determine whether erosion or deposition will occur, the magnitude of this erosion or deposition, and the time and distance over which it will occur. (wikipedia.org)
  • at low auxin concentrations, auxin transported/time similar with or without ethylene treatment. (iastate.edu)
  • people
  • You are responsible for ensuring that the risks created by transport onsite are managed so that people do not come to harm. (hse.gov.uk)
  • environmental
  • However, transport activities can generate various negative environmental impacts. (oecd.org)
  • The OECD has carried out recent studies to identify instruments and other approaches for reconciling transport and environmental policies. (oecd.org)
  • modes of transp
  • It may combine different modes of transport , for example, walking and car, to model multi-modal journeys. (wikipedia.org)
  • Determining the risk of being a victim on various modes of transport is though challenging, due to there being no robust baseline on which to base calculations. (ucl.ac.uk)
  • leaf
  • Detailed leaf dissections show that in the absence of GTR1 and GTR2 transport activity, glucosinolates accumulate predominantly in leaf margins and leaf tips. (plantphysiol.org)
  • road transport
  • The first forms of road transport involved animals, such as horses (domesticated in the 4th or 3rd millennium BCE), oxen (from about 8000 BCE) or humans carrying goods over dirt tracks that often followed game trails. (wikipedia.org)
  • animals
  • The domestication of animals introduced a new way to lay the burden of transport on more powerful creatures, allowing the hauling of heavier loads, or humans riding animals for greater speed and duration. (wikipedia.org)
  • regions
  • Aeolian sediment transport is common on beaches and in the arid regions of the world, because it is in these environments that vegetation does not prevent the presence and motion of fields of sand. (wikipedia.org)
  • formation
  • Coastal sediment transport results in the formation of characteristic coastal landforms such as beaches , barrier islands , and capes. (wikipedia.org)
  • result
  • Its brownish color is mainly the result of the transported sediments taken upstream. (wikipedia.org)
  • 1988 Jerry Suttle- reduction of IAA movement in ethylene-treated tissues is the result of reduced transport capacity rather than reduced velocity. (iastate.edu)