Bounds on the size of an inclusion using the translation method for two-dimensional complex conductivity

The size estimation problem in electrical impedance tomography is considered when the conductivity is a complex number and the body is two-dimensional. Upper and lower bounds on the volume fraction of the unknown inclusion embedded in the body are derived in terms of two pairs of voltage and current data measured on the boundary of the body. These bounds are derived using the translation method. We also provide numerical examples to show that these bounds are quite tight and stable under measurement noise.Comment: 15 pages, 5 figures, 5 table

Femmes en milieu rural, vieillesse et activités dans les temples

Cet article explore les liens entre religion, genre et vieillesse dans la Chine contemporaine à travers l’étude d’un groupe de femmes âgées han en milieu rural et de leur temple communautaire dans le nord-ouest du Sichuan. Dépourvues de ressources monacales ou d’une autorité charismatique, ces femmes âgées ont transformé ce temple en un espace rituel sexué qui leur procure, ainsi qu’à leurs familles, sociabilité, confort spirituel et capital moral. Ni victimes de superstitions féodales, ni obstacles à la modernisation, elles représentent une force de transformation dynamique dans la Chine rurale contemporaine

Femmes en milieu rural, vieillesse et activités dans les temples

Cet article explore les liens entre religion, genre et vieillesse dans la Chine contemporaine à travers l’étude d’un groupe de femmes âgées han en milieu rural et de leur temple communautaire dans le nord-ouest du Sichuan. Dépourvues de ressources monacales ou d’une autorité charismatique, ces femmes âgées ont transformé ce temple en un espace rituel sexué qui leur procure, ainsi qu’à leurs familles, sociabilité, confort spirituel et capital moral. Ni victimes de superstitions féodales, ni obstacles à la modernisation, elles représentent une force de transformation dynamique dans la Chine rurale contemporaine

Human and Machine Speaker Recognition Based on Short Trivial Events

Trivial events are ubiquitous in human to human conversations, e.g., cough, laugh and sniff. Compared to regular speech, these trivial events are usually short and unclear, thus generally regarded as not speaker discriminative and so are largely ignored by present speaker recognition research. However, these trivial events are highly valuable in some particular circumstances such as forensic examination, as they are less subjected to intentional change, so can be used to discover the genuine speaker from disguised speech. In this paper, we collect a trivial event speech database that involves 75 speakers and 6 types of events, and report preliminary speaker recognition results on this database, by both human listeners and machines. Particularly, the deep feature learning technique recently proposed by our group is utilized to analyze and recognize the trivial events, which leads to acceptable equal error rates (EERs) despite the extremely short durations (0.2-0.5 seconds) of these events. Comparing different types of events, 'hmm' seems more speaker discriminative.Comment: ICASSP 201

Rural Women, Old Age, and Temple Work

This article examines the interface of religion, gender, and old age in contemporary China through the case of a group of rural Han elder women and their community temple in northwestern Sichuan. Without access to monastic resources and charismatic leadership, the women have made the temple a gendered ritual space of their own to obtain social company, spiritual comfort, and moral capital for themselves and their families. Neither victims of feudal superstition nor obstacles to modernisation, they are a dynamic transformative force in contemporary rural China