Recently, a “usable speech” extraction system [1] was proposed to separate co-channel speech into “usable” frames that are minimally corrupted by interfering speech. Studies indicate [2] that a significant amount of cochannel speech can be considered “usable” for speaker identification (SID). Therefore, it is necessary to establish criteria for usable speech frames for SID. Voiced speech, of wh...

Mohammad Mannan is an Assistant Professor at the Concordia Institute for Information Systems Engineering, Concordia University, Montreal. He has a PhD in Computer Science from Carleton University (2009) in the area of Internet authentication and usable security. He was a postdoctoral fellow in the Department of Electrical and Computer Engineering at the University of Toronto from 2009 to 2011 (...

this paper presents a new arc starter circuit that is usable in manual metal arc welding (mma) power supplies. the proposed circuit uses an auxiliary circuit and a series coupling transformer for adding high frequency spikes to output dc voltage during arc striking. the proposed circuit is usable in inverter based arc welding supplies and it could result in a decrease of weigh, volume and expen...

BACKGROUND The aim of this study was to determine whether edema imaging by T2-weighted cardiac magnetic resonance (CMR) imaging could retrospectively delineate the area at risk in reperfused myocardial infarction. We hypothesized that the size of the area at risk during a transient occlusion would be similar to the T2-weighted hyperintense region observed 2 days later, that the T2-weighted hype...