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A proposal of accuracy improvement method and a construction of the analysis system in review analysis
Get PDF"In recent years, comments posted on review sites have a strong influence on viewers' willingness to purchase. In order not to be misled by wrong information, it is necessary to read more comments on favorite items. However, it takes a lot of time to read all posted comments. In this paper, we focus on emotional words included in the review, build a system to analyze the comments of the review sites, and propose a method to improve comment classification accuracy for the analysis system.
Review for Physical Mechanism of Fiber-form Nanostructure Growth on Metal Surfaces induced by Helium Plasma Irradiation
Get PDF"Fiber-form nanostructure on tungsten surface induced by helium plasma exposure found for the first time by the author has a fuzzy surface morphology so that the physical mechanism on its growth is widely attracted by many researchers in addition to a new worry in plasma-surface interaction in magnetic confinement fusion energy development. Experimental, theoretical and numerical simulation approaches are developed in these more than ten years. However, we do not obtain definitive explanation for this interesting phenomenon. The author has developed a special experimental technique ?flux gradient method ? which converts time evolution of growth to a spatial extension on substrate. It reveals that a loop-like structure would be a precursor for fuzz formation on tungsten as well as molybdenum surfaces. The importance of shear modulus of tungsten with helium content and its temperature dependence was identified as an essential key for fiber-form nanostructure formation. The meaning of temperature band for the formation is discussed, pointing out a competition between formation and annihilation of fibers near the upper limit of temperature band for the formation.
Significance of sharing the aim of school intemships between students and teachers in teacher training course : A case report about the practice of “method of science education” in high school
Get PDF"To enhance current teacher training programs，“school-intemship"" has attracted attention in recent years. However，there still remains many issues to integrate it fruitfully into actual current programs. This case report suggests that putting “school-intemship” into one of the classes in teacher training course. Accordingly， students can step into high school with clear purpose and get enough support from teachers for their leaming in high school. These advantages could encourage students to get more out of their field experience.
