“Journal of the Japan Petroleum Institute”publishes articles on petroleum exploration, petroleumrefining, petrochemicals and relevant subjects (such as natural gas, coal and so on). Papers published in this journal arealso put out as the electronic journal editions on the web.Topics may range from fundamentals to applications. The latter may deal with a variety of subjects, such as: case studies in the development of oil fields, design and operational data of industrial processes, performances of commercial products and others