Thomas Jin-Chee Liu

Notice of Retraction Application of thermo-electric Joule heating for crack detection

At the crack tip, the Joule heating effect causes a high temperature area to be detected by thermal sensing equipments. It is noted that the magnitude of the external electric current will affect the detection. It is easy to detect the temperature variation and the hot spot at the crack tip when the external electric current is large enough.

Generation of historical mandible landmarks for orthodontic treatment using genetic algorithm and finite element method

Contemporary cephalometric imaging in dental orthodontic treatment uses anatomical features on X-ray images for analysis; however, the available features are limited. The mandible, for example, has a simple structure compared to that of the maxilla, and all the analytical features are distributed on the outer edge. The aims of this study are to simulate the growth process of the mandible based on the relevant orthodontic surveys and through a finite element analysis using ANSYS software, to calculate the optimum growth parameters using genetic algorithms, and to establish new features in the absence of anatomical structure. This study proposes a calculation method for establishing new features, and provides more comprehensive information for pretreatment diagnosis in orthodontics.