717 publications from this institution
Solving a short mileage and a long charging time is indispensable to putting electrical vehicles (EVs) on the full-scale market. A moving wireless power transfer (WPT) system is one of the effective solutions, because it can feed electric power to moving EVs. This paper proposes a moving WPT system consisting of several stationary ground-side (primary) coils and a moving vehicle-side (secondary) coil. This system is characterized by the use of the common vehicle-side coil to both moving and stationary WPT situations. Theoretical analysis concludes that the moving WPT system resulting from a stationary WPT system is the same in equivalent circuit as the stationary system. The moving WPT system employs solenoid coils that are superior to circular coils in terms of misalignment and flux-distribution performance. A downscaled moving WPT system rated at 3 kW is designed, constructed, and tested to verify the principles of operation, and the capability of continuous power transfer.
For the treatment of nasopharyngeal carcinomas, radiotherapy with or without adjunctive chemotherapy has been generally accepted as the first choice. However, recent advances in skull base surgery and imaging diagnosis have extended the indications for surgical intervention in the treatment of recurrent or residual carcinomas.Although there are several approaches to nasopharyngeal surgery, such as the transpalatal, transmaxillary, transpterygoid, transmandibular-transcervical and infratemporal fossa approaches, Mann et al recently developed the anterolateral transfacial approach.We operated on a 57-year-old male with recurrent nasopharyngeal carcinoma using this approach. This approach is characterized by temporary removal of the malar complex and resection of the coronoid process and pterygoid plates to achieve an excellent view of the nasopharynx and retromaxillary f ossa. This approach has the cosmetic advantage of preserving facial contouring by using the malar complex as a free bone graft, as well as the functional advantage of maintaining mouth opening by rehabilitation of mandibular movement. This approach is thought to be a valuable procedure for resection of nasopharyngeal carcinomas.
