SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
Research into energy sources remains a key issue. Over the last 80 years, Fuel has been the leading source of primary research work in fuel science. The scope is broad and includes many topics of increasing interest such as environmental aspects and pollution.
A wide variety of fuels are covered:
• Oils and gases
• Synthetic fuels (including Dimethyl ether (DME), Methanol etc)
• Tar sands
• Natural gas
• Oil shale
• Tar and pitch
• Woods and biomass
• Hydrogen fuels
• Waste-derived fuels (WDF)
• Refuse-derived fuels (RDF)
• Carbon with applications to fuel energy