We use C to denote a generic count of co-occurrences, for example, Ctdk is the number of words in document d at epoch t that are generated from topic k. We might remove a dimension to denote summation, for example, Ctd. is the total number of words in document d at epoch t and Ct.k is the total number of words generated from topic k at epoch t. Finally, we use a negative sign in the superscript...

Instantaneous fundamental frequency (F0) in voiced speech can be obtained from the sequence of epochs corresponding to the instants of significant excitation. The epoch sequence can be derived using the recently proposed epoch extraction method based on zero frequency filtering. The epoch extraction method is robust against additive noise degradation. But in a multispeaker mixed signal, the deg...

This paper is concerned with the analysis of a single server queueing system subject to Bernoulli vacation schedules with server setup and close down periods. An explicit expression for the probability generating function of the number of customers present in the system is obtained by using imbedded Markov chain technique. The steady state probabilities of no customer in the system at the end o...

This paper describes MPSS, a new proactive secret sharing protocol that provides mobility. Rather than requiring that the group of shareholders remain the same in every epoch, MPSS allows the membership of the group to change arbitrarily in each epoch. Mobility provides a needed methodology for a system administrator to use to determine group membership: identify a set of “fresh” nodes, and mov...

We present results from a coordinated XMM-Newton+NuSTAR observation of the type 1.8 Seyfert galaxy IRAS 13197-1627. This is a highly complex source, with strong contributions from relativistic reflection from the inner accretion disk, neutral absorption and further reprocessing by more distant material, and ionised absorption from an outflow. We undertake a detailed spectral analysis combining ...

A number of studies have highlighted the sophistication of corrective responses in lengthened muscles during the long-latency epoch. However, in various contexts, unloading can occur, which requires corrective actions from a shortened muscle. Here, we investigate the sophistication of inhibitory responses in shortened muscles due to unloading. Our first experiment quantified the inhibitory resp...

OBJECTIVE Brain computer interface technology is of great interest to researchers as a potential therapeutic measure for people with severe neurological disorders. The aim of this study was to examine the efficacy of brain computer interface, by comparing conventional neuromuscular electrical stimulation and brain computer interface-driven neuromuscular electrical stimulation, using an A-B-A-B ...

The East Asian winter monsoon (EAWM) and the North Pacific Oscillation (NPO) constitute two outstanding surface atmospheric circulation patterns affecting the winter sea surface temperature (SST) variability in thewesternNorth Pacific. The present analyses show the relationship between theEAWMandNPO and their impact on the SST are nonstationary and regime-dependent with a sudden change around 1...

[1] Superposed epoch analyses have shown that, on average, the interplanetary magnetic field (IMF) turns northward close to substorm onset. This has been commonly accepted as evidence for the substorm onset being triggered by a rapid northward turning of the IMF. Here we show that the tendency arises in any superposed epoch analysis of the IMF in which event onset is biased to occur for southwa...

Abstract. Linearizing the cosmological equation of state around the current epoch p = p0 + κ0 (ρ− ρ0) +O[(p− p0)2], is the simplest model one can consider that does not make any a priori restrictions on the nature of the cosmological fluid. Most popular cosmological models attempt to be “predictive”, in the sense that once some a priori equation of state is chosen the Friedmann equations are us...