The problem of forced alignment is that of matching phonetic segments in an audio sample to its corresponding transcription, which is a vital part of indexing audio files. While various methods have been employed to accomplish this task, the results become less accurate under adverse alignment conditions caused by various disturbances in the audio as well as transcription errors. In fact, the a...

Y. D. Cui, J. M. Lopez, T. T. Lim, and F. Marques Temasek Laboratories, National University of Singapore, Singapore 119260, Singapore School of Mathematical and Statistical Sciences, Arizona State University, Tempe, Arizona 85287, USA Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore Departament de Física Aplicada, Universitat Politècnica de Cat...

Since a large number of physical variables are involved in the combustion process occurring in complex swirl stabilized combustors, simple systems (burner stabilized laminar flat flames) were initially studied (see chapters 5 and 6). Having understood the dynamics of laminar flat flames and developed methodologies to build reduced order flame dynamic models, the technique developed to measure t...

In this paper we consider a linear discrete-time control system affected by an additive sinusoidal disturbance with known frequencies but unknown amplitudes and phases. The problem is to damp this forced oscillation in an optimal fashion. We show that the natural solution from the point of view of optimal control is neither robust with respect to errors in the frequencies, and thus not optimal ...

A putative powerlaw range of the probability density of velocity gradient in high-Reynolds-number forced Burgers turbulence is studied. In the absence of information about shock locations, elementary conservation and stationarity relations imply that the exponent 2a in this range satisfies a>3, if dissipation within the power-law range is due to isolated shocks. A generalized model of shock bir...

We consider the passage of long polymers of length N through a hole in a membrane. If the process is slow, it is in principle possible to focus on the dynamics of the number of monomers s on one side of the membrane, assuming that the two segments are in equilibrium. The dynamics of s(t) in such a limit would be diffusive, with a mean translocation time scaling as N2 in the absence of a force, ...

One of the defining features of contemporary multi-core processors is that the cores share resources in the form of caches and memory buses. In this assignment, we study how this fact could impact the design of algorithms for perfectly parallel problems. We develop microbenchmarks to quantify the negative effects of resource competition on Abisko and also quantify the positive effects of the so...

PURPOSE To report two patients with lamotrigine-induced forced normalization (FN). METHODS Evaluation of the patient files, EEG, and video-EEG records, with special reference to the parallel clinical and EEG changes before, during, and after FN. RESULTS This is the first documented report of lamotrigine-induced FN. The two epileptic patients (one of them was a 10-year-old girl) were success...

Substantial interannual to decadal variability is observed in the properties of subtropical mode water of the North Atlantic. In this study the response of mode water to stochastic atmospheric forcing is investigated in a numerical model. In a series of experiments the response is studied to different components of stochastic atmospheric forcing, such as wind stress, freshwater flux, and heat f...

The forced response curve is a graph showing the amplitude of the response of a periodically forced system as the forcing frequency is varied. Zhang and Golubitsky (SIADS, 10(4) (2011) 1272–1306) classified the existence and multiplicity of periodic responses to small amplitude periodic forcing of a system near a Hopf bifurcation point, where the forcing frequency, ωF , is close to the Hopf fre...