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
Contributions are invited on all aspects of the research, development and applications of the science and technology of measurement and instrumentation. Authors are encouraged to submit novel material which could include results of research or experimental work, may deal with practical developments related to plant or process, discuss new developments in sensors and instrumentation, or relate to systems evaluation or the connected world ('the Internet of things') and modeling and simulation.
Topics covered include: General principles of measurement and instrumentation; Sensors and sensor systems: design and evaluation; Data acquisition; Signal transmission; Processing and evaluation; Data output; Systems aspects; Systems modelling and evaluation; Specific applications in measurement and instrumentation; Specific instruments and measurement systems; Design and manufacture of instruments; applications of sensors and instrumentation in a range of fields.
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