Daido University

About: Daido University is a education organization based out in Nagoya, Japan. It is known for research contribution in the topics: Ultimate tensile strength & Proton exchange membrane fuel cell. The organization has 209 authors who have published 423 publications receiving 3223 citations.

A Map Matching Algorithm for Sharing Map Information among Refugees in Disaster Areas

Abstract: In this paper, we propose a map matching algorithm for a map information sharing system used by refugees in disaster areas. The map information sharing system stores the roads passed by a refugee as map information. When another refugee comes close to the refugee, they exchange their map information each other in ad-hoc network manner. Our map matching algorithm is based on geometric curve-to-curve matching approach and provides road segments on which a refugeemoves, from position data by GPS. In order to decrease matching errors, our algorithm adopts the point-to-curvematching method as initial matching, and incremental matching for suppressing error propagation. Experimental results shows that our proposed algorithm achieve the best result in comparison with the conventional point-to-curve and curve-to-curve map matching methods.

Effects of Tool-Edge Form during the Drilling of CFRP

Abstract: The drilling of carbon fiber reinforced plastics (CFRP) involves many problems such as an extremely short tool life or CFRP delamination occurring at the exit surface of drill. In an effort to solve these problems, this experiment observed the form of the drill’s tool edge. Then, an investigated the form of the tool edge with regard to low-cost, high-precision, and high-efficiency machining processes. The thrust direction of the cutting force is decreased as the CFRP delamination at the exit surface of drill is decreased. It is considered suppressing the delamination on the exit surface of drill by reducing the thrust force during drilling. In this experiment, the CFRP materials had a thickness of 4 mm. This experiment used sintered carbide, straight shank drill tooling with a diameter of 6 mm. Ten different types of straight shank drills with different point angles and coating treatment were tested. Additionally, this experiment an evaluated the cutting force, the cutting temperature, and the CFRP delamination at the exit surface of drill through the drilling and processing of 100 holes. Moreover, this experiment an evaluated the effects of chamfering of honing the tool edge with regard to the drilling and machinability of CFRP. This experiment used CFRP material with a thickness of 8 mm and four types of sintered carbide drills. As a result, the CFRP delamination distance of the exit surface of drill became smaller at point angles 130° and 140°. No differences in the cutting force or the cutting temperature were observed due to the different point angles. The results of the evaluation indicated that for the case without honing, the thrust force becomes 1/3 less than that for the case with honing of the drill tool. Additionally, in the case of without honing, CFRP delamination was suppressed at the exit surface of drill.

Is Experience of Novel Reading Useful to Compose Technical Papers

Abstract: In this paper, we discuss the effect of novel reading experience on composing technical papers and investigate how the novel reading experiences in which many students have been as their interesting activities should be applicable to the paper composition work. Our goals were to extract the common features between novels and technical papers in comparison with their different viewpoints, and then to find out the creative ability of paper writing from intelligent work in the novel reading process.