Author Correction: Using energy time–frequency of Hilbert Huang transform to analyze the performance of the variable valve timing engine

• Arshed Abdulhamed Mohammed,
• Sallehuddin Mohamed Haris

Affiliations

Arshed Abdulhamed Mohammed

Department of Materials Engineering College of Engineering, University of Diyala

Sallehuddin Mohamed Haris

Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and the Built Environment, Universiti Kebangsaan Malaysia