Detecting loops in data networks usually involves counting down a hop limit or caching data at each hop to detect a cycle. Using a hop limit means that the origin of a packet must know the maximum distance a packet could travel without loops. It also means a loop is not detected until it travels that maximum distance, even if that is many loops. Caching a packet signature at each hop, such as a...

In this paper, the problem of detecting an optical pattern in unknown position is considered. Two detection procedures are investigated--one which entails a search procedure, and one which does not. The falsealarm and false-dismissal probabilities for these two procedures are evaluated under certain simplifying assumptions in order to compare the two procedures with each other and with the dete...

A novel Voice Activity Detector is presented that is based on Source Separation techniques applied to single sensor signals. It ooers very accurate estimation of the endpoints in very low Signal to Noise ratio conditions, while maintaining low complexity. Since the procedure is totally iterative, it is suitable for use in real-time applications and is capable of operating in dynamically adaptin...

The use of canonical functions to model BOLD-fMRI data in people post-stroke may lead to inaccurate descriptions of task-related brain activity. The purpose of this study was to determine whether the spatiotemporal profile of hemodynamic responses (HDRs) obtained from stroke survivors during an event-related experiment could be used to develop individualized HDR functions that would enhance BOL...

Time difference of arrival (TDOA) estimation is one of the key techniques in array signal processing and has wide applications in hands-free speech interface. TDOA is used to derive the time difference of signal propagation from source to the spatially separated microphones. The acoustic transfer functions ratio (ATF-s ratio) method is one of the robust approaches to get TDOA estimate in presen...

results all eight candida species were successfully detected, identified and quantitated based on the icl gene. a seven-log range of the gene copy number and a minimum detection limit of 103 copies were achieved. conclusions a one-tube absolute quantification real-time pcr that differentiates medically important candida species via individual unique melting temperature was achieved. analytical ...

The current study is focused on determining the mRNA expression levels of tetranectin, to detect oral squamous cell carcinoma (OSCC) and thus aiding in its classification at an early stage. RNA was isolated and cDNA synthesis was performed from the saliva samples of the patients and healthy individuals. A semiquantitative PCR based analysis was performed prior to quantitative and expression bas...