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
Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline.
Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.
We welcome manuscripts presenting cutting-edge research, of either an experimental or a theoretical nature. While centered in chemical engineering, manuscripts will often have scope that cuts across disciplines, ranges across scales, from the molecular level to the plant level, with impact not only on specific research questions but also in global issues. Critical reviews of cutting-edge developments are also considered. Papers submitted to Chemical Engineering Science are assessed by the editorial board via a thorough peer-review process only with regard to their quality and potential for fundamental and long-lasting contribution to chemical engineering.
Chemical Engineering Science classifies research into the following main fields: Biochemical engineering, Materials synthesis and processing, Particle technology, Process systems engineering, Reaction engineering and catalysis, Separation processes, Thermodynamics and Transport Phenomena, including Fluid Mechanics. Application areas covered by the journal include Chemicals, Minerals, Energy and Fuels, Water, Environment, Sustainability, Food, Medicine including Pharmaceuticals, and other areas to which chemical engineering applies.