In a multi-product production system, the cycle time is described as the time that the slowest workstation takes to process the mix of products (Martinich, 1997). Johri (1987) presented a linear programming model to estimate the capacity of a production line manufacturing a variety of products without accidental stoppages of the workstation. The multi-product system is able to follow a predeter...

In our current research, we assessed the feasibility of integrating a dual coded robot’s feedback. Dual coded feedback consists of the robot combining it visible behaviors (e.g.: the robot’s movement) with auditory icons which we refer to as Inarticulate Utterances (IUs). In our study, we investigate whether using dual coded robot’s feedback during the HumanRobot Interaction (HRI) may help main...

ion, differentiation, definition, summarisation: These provide points where shared understanding is explicitly checked and discussed. Abstraction is used to ignore detail in order to establish the overall concepts. Summarisation is used by the hearer, both to check that something has been understood correctly, and as an indication of closure on a topic. Report writing: This forces a group to se...

A common property of many large networks, including the Internet, is that the connectivity of the various nodes follows a scale-free power-law distribution, P(k) = ck(-alpha). We study the stability of such networks with respect to crashes, such as random removal of sites. Our approach, based on percolation theory, leads to a general condition for the critical fraction of nodes, p(c), that need...

This paper focuses on the EEG measures suitable for robotic neurofeedback systems, able to detect and intervene in case of attention breakdowns. Such systems can be useful tools in cognitive remediation of children with ASD, in particular to improve their attention span. The proposed study focuses on a particular EEG measure, the Theta/Beta ratio, as convenient feature for recognizing attention...

The communicability evaluation method evolved within the Semiotic Engineering framework and its main goal is to assess how designers communicate to users, through the interface, both their design intent and the interactive principles they have selected for the application. The method consists of 3 steps: tagging, interpretation, semiotic profiling and was originally developed to evaluate how we...

REPAIRS Oren Nakdimon and Uri Yechiali Department of Statistics and Operations Research School of Mathematical Sciences Raymond and Beverly Sackler Faculty of Exact Sciences Tel Aviv University, Tel Aviv 69978, Israel [Email: [email protected]; phone +972-3-6409637] Abstract This work analyzes various polling systems with both random breakdowns and repairs. A few works in the literature inves...

Computationally attractive and intuitively obvious simple bounds are proposed for finite service systems which are subject to random breakdowns. The services are assumed to be exponential. The up and down periods are allowed to be generally distributed. The bounds are based on product-form modifications and depend only on means. A formal proof is presented. This proof is of interest in itself. ...

We study network configurations that provide optimal robustness to random breakdowns for networks with a given number of nodes N and a given cost—which we take as the average number of connections per node hki. We find that the network design that maximizes f c, the fraction of nodes that are randomly removed before global connectivity is lost, consists of q 1⁄4 1⁄2ðhki 1Þ= ffiffi h p ki ffiffi...