1. School of Chinese Law and Economic Management, China University of Petroleum Sheng Li College , Dongying, SD, China
2. Financial Department, China University of Petroleum , Qingdao, SD, China
3. Department of Business Operations, Petrochina Hunan Yiyang Marketing Corporation , Yiyang, HN, China
4. John Muir Institute of the Environment, University of California at Davis , Davis, USA
5. Computer Science and Computer Engineering, La Trobe University , Melbourne, Australia
6. Department of Mathematics and Computer Science, Faculty of Science, Beirut Arab University , Beirut, Lebanon