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In this paper, we propose a simple and effective preprocessing method for melanoma classification by considering cytological properties of melanomas, in particular the alignment of the major axis of the tumor in the same direction. We evaluate our method with a set of 1,760 dermoscopic images (329 of melanomas and 1,431 of nevi) and a simple convolutional neural network (CNN) classifier with five-fold...
In this paper, a printed inverted-F antenna for circular polarization is proposed. A rectangular element is loaded at the feeding element perpendicularly. The circular polarized wave is radiated in the frequency range between the first resonant frequency and the second resonant frequency produced by the rectangular element. The relationships between the geometrical parameters of the loaded rectangular...
A Reverse Conducting IGBT (RC-IGBT) is a promising device to reduce a size and cost of the power module thanks to the integration of IGBT and FWD into a single chip. However, it is difficult to achieve well-balanced performance between IGBT and FWD. Indeed, the total inverter loss of the conventional RC-IGBT was not so small as the individual IGBT and FWD pair. To minimize the loss, the most important...
When smart phone users browse web news articles, they encounter attractive phrases by chance. At that time, they try to obtain information on the smart phones. In order to search the information of the attractive phrases on web pages, they have to manipulate the smart phones to search on the small screen. It causes stresses because of situations such as manipulation errors. Such stresses could be...
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