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We investigated the effects of photoperiod and temperature on the development of the endangered butterfly Zizina emelina under laboratory conditions, and its seasonal occurrence in Osaka Prefecture, central Japan in 2009. At 20 °C most individuals reared under conditions of <13 h of light/day entered diapause during the larval stage, whereas those reared(More)
Butterflies of the genus Zizina are widely distributed in all zoogeographical regions except the New World (North and South America) and the northern part of Eurasia. We address some of the problems in regard to the taxonomy and biogeography of the genus. We inferred phylogenetic relationships for all four species in the current classification of this genus(More)
The objective of this paper is to clarify the principle of stabilization in flapping-of-wings flight of a butterfly, which is rhythmic and cyclic motion. For this purpose, a dynamics model of a butterfly is derived by Lagrange’s method, where the butterfly is considered as a rigid multi-body system. For the aerodynamic forces, a panel method is applied.(More)
The flapping flight of butterfly is an example of Mobiligence in which the environment is the generated flowfield. Actually, it essentially has the same structure with other Mobiligence subjects, e.g., to emerge the flapping flight from the interaction of the nervous system, body, and environment. This research analyzes the mechanism to emerge the flapping(More)
The fluvial eight-barbel loach Lefua sp. 1 is an undescribed species distributed from the Kinki to Chugoku districts, Honshu, and also on Shikoku Island, Japan. Genetic relationships among local populations are unclear and management units remain undetermined. To aid conservation, we determined genetic population structures from microsatellite loci for 20(More)
We studied a backside timing analysis technique utilizing Time Resolved Imaging Emission Microscopy (TRIEM) which can acquire emission data locations and timing simultaneously from an activated LSI chip. In this paper, we will present two case studies of actual failed chips. One is a delay fault case, and the other is a current fault case. Then, we will(More)
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