Jadavpur University

About: Jadavpur University is a education organization based out in Kolkata, India. It is known for research contribution in the topics: Population & Fuzzy logic. The organization has 10856 authors who have published 27678 publications receiving 422069 citations. The organization is also known as: JU & Jadabpur University.

Design of a material handling equipment selection model using analytic hierarchy process

Abstract: Selection of suitable material handling equipment for typical conditions and handling environment is found to be a multi-criteria decision making problem. The selection procedure is found to be unstructured, characterised by extensive domain dependent knowledge and requiring the application of an effective and efficient multi-criteria decision making tool, such as the analytic hierarchy process (AHP). The AHP technique breaks down decision making problems into finer parts to allow for easier and more logical selections. The following paper focuses on the application of the AHP technique in selecting the optimal material handling equipment under a specific handling environment. The relative importance of each criteria, subcriteria and sub-subcriteria is measured using pairwise comparison matrices and the overall ranking of each alternative equipment is then determined. Sensitivity analysis is performed to identify the most critical and robust criteria in the material handling equipment selection process.

Mercury Stable Isotope Signatures of World Coal Deposits and Historical Coal Combustion Emissions

Abstract: Mercury (Hg) emissions from coal combustion contribute approximately half of anthropogenic Hg emissions to the atmosphere. With the implementation of the first legally binding UNEP treaty aimed at reducing anthropogenic Hg emissions, the identification and traceability of Hg emissions from different countries/regions are critically important. Here, we present a comprehensive world coal Hg stable isotope database including 108 new coal samples from major coal-producing deposits in South Africa, China, Europe, India, Indonesia, Mongolia, former USSR, and the U.S. A 4.7‰ range in δ202Hg (−3.9 to 0.8‰) and a 1‰ range in Δ199Hg (−0.6 to 0.4‰) are observed. Fourteen (p < 0.05) to 17 (p < 0.1) of the 28 pairwise comparisons between eight global regions are statistically distinguishable on the basis of δ202Hg, Δ199Hg or both, highlighting the potential application of Hg isotope signatures to coal Hg emissions tracing. A revised coal combustion Hg isotope fractionation model is presented, and suggests that gaseous...