Speech recognition is a subfield of artificial intelligence that develops technologies to convert speech utterance into transcription. So far, various methods such as hidden Markov models and artificial neural networks have been used to develop speech recognition systems. In most of these systems, the speech signal frames are processed uniformly, while the information is not evenly distributed ...

Introduction: When adults talk to another person, linguistic characteristics of the listener will also be considered. A clear example of speech changes depending on the listener is maternal or infant directed speech. Infant directed speech is more slowly with longer sentences and pauses at the end of the utterance. Undoubtedly the most distinctive feature of this style of speech is acoustic c...

Introduction: It has been well established that early intervention programs for preschool children are both effective for decreasing the potential problems in adulthood and also for preventing from chronic stuttering. Syllable-time speech therapeutic method is considered as an effective method in these children. The present study investigated the effectiveness of the Westmead therapeutic method...

Crossed aphasia in dextral (CAD) refers to aphasia occurring after right brain damage in dextral persons. CAD is a rare phenomenon in the world and there has not been any report of crossed aphasia in Persian, that is why we measured to report a Persian patient with crossed aphasia and this is a first report of incidence of CA in Persian. In this case report study, we offered a complete report o...

in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...