We consider nonlinear impulsive systems on Banach spaces subjected to disturbances and look for dwell-time conditions guaranteeing the ISS property. In contrary many existing results our cover case where both continuous discrete dynamics can be unstable simultaneously. Lyapunov type methods are used this purpose. The effectiveness of approach is illustrated a rather nontrivial example, which fe...

This study explores the effect of task difficulty on users’ search behaviors, i.e. dwell time on content pages and search result pages, by users with high and low domain knowledge. A user experiment was conducted, with 40 participants working on 5 search tasks. Participants were divided into two domain knowledge levels according to their MeSH term ratings. Among the five search tasks, three wer...

Pie menus are suggested as powerful tool for eye gaze based text entry among various interfaces developed so far. If pie menus are used with multiple depth layers then multiple saccades are required per selection of item, which is inefficient because it consumes more time. Also dwell time selection method is limited in performance because higher dwell time suffers from inefficiency while lower ...

In eye typing systems, a dwell time that adjusts to the user’s natural typing speed is highly desirable. We present an algorithm for adjustable dwell time developed after detailed analysis of exit time upon selection of virtual keys. Exit time was measured using a wide range of dwell times for selection (300-1100 ms). The results suggest that there was a considerable variability in exit time am...