No abstract

This paper presents an algorithm to judge multiple statuses of distribution equipment fヒ om conlinuous vibration measuremen し The algorism finds the acceleration threshold of moving and staying statuses as cluster boundaries of acceleration lcvel distributions ． In the method ， first the measured acceleration data are divided into multiple clusters using tentative boundarにs ． Then acceieration data are re − classifjed as one of clusters using k − nearest neighbor algorithm and Mahalanobis distances ． Validity of the mcthod is confirmed by the simulation with simply distributed samp 且 es and by an experiment with measured acceleration data of an automobi ！ e ． For the case of 〔 》verlapped boundaries ， which is caused by inappropriate numbers of tentative beundaries ， the algorism to find appropriate cluster number is proposed and confirmed by the simu 正 ation and

With the Han dynasty's imperial expansion to the west, Xinjiang became a frontier region for political negotiation, military conflict, and cultural contact. The recent excavation at Shichengzi military fort has rendered an opportunity to examine animal exploitation in the empire's frontiers. The results of our zooarchaeological analysis suggest that meat production primarily relied on caprines and cattle. Horses, donkeys, and camels were exploited for labor. Pig husbandry was a novel addition to the