An Automatic Respirator Oil Level Reading Method Based on Instance Segmentation -- A Survey of Emergency Self-running Power Supply Schemes for Rail Transit Vehicles -- Review of the Application of Intelligent Optimization Algorithm for Design of Novel Electric Machines -- Numerical Analysis and Research on Rectangular Crack Detection of Basin Insulator Based on Laser Ultrasonic -- Design of High Sensitivity Foreign Object Detection System in Wireless Charging Based on the Variation of Detection Coils Impedance -- The Application of Genetic Algorithm in the Structural Optimization of Permanent Magnet Synchronous Motor -- Analysis of Electric Field Focalization Induced by Transcranial Magneto-Acoustical-Electrical Stimulation Parameters -- Simulation calculation of loss of induction traction motor -- Magnetic Field Analysis and Structural Optimization of Deflection Double Stator Switched Reluctance Generator.