Academicsera – 685th International Conference on Science, Technology, Engineering and ManagementICSTEM will be held on 19th-20th May, 2020 at Jeju Island ,South Korea. ICSTEM is to bring together innovative academics and industrial experts in the field of Science Technology and Management to a common forum. All the registered papers will be published by the World Research Library and will be submitted for review for indexing by Google Scholar etc.