Studies based on British Crime Survey (BCS) data suggest that the overall incidence of workplace assault is relatively low. However, these data have a number of limitations. They include only assaults carried out by clients or the public, provide limited information about the individuals involved and their workplaces, and tell us little about perceived causes of violence at work. The 2008 Workp...

This paper deals with finite capacity single server queuing system with vacations. Vacation starts at rate nu if the system is empty. Also the server takes another vacation if upon his arrival to the system, finds the system empty. Customers arrive in the system in Poisson fashion at rate lamda0 during vacation, faster rate lamdaf during active service and slower rate lamdas during the breakdow...

An easily applicable algorithm to solve problems involving bulk-arrival queues with a breakdown of one of the heterogeneous servers in case of steady state is introduced. A Monte Carlo study for numerically finding the limiting distribution of the number in the system for the bulk arrival, multi-server queueing model (M[x]/EK/C; C1/FCFS) with heterogeneous servers is presented. The system consi...

This paper aims to find errors that lead to dialogue breakdowns in chat-oriented dialogue systems. We collected chat dialogue data, annotated them with dialogue breakdown labels, and collected comments describing the error that led to the breakdown. By mining the comments, we first identified error types. Then, we calculated the correlation between an error type and the degree of dialogue break...

there exists an arrangement in 5 in which a* follows all the Oi with i<k. Such sets Ssurely exist; for example, any set of m arrangements whose terminal elements are 1, 2, • • • , m, respectively, will obviously be ^-suitable for any k^m. The smallest cardinal number N such that there exists a set of N arrangements which is ^-suitable for m will be denoted by N(m, k); this is therefore a well d...

objective: to compare the effectiveness of bibliotherapy and cognitive behavioral therapy on depression of students with emotional breakdown. method: this is a quasi-experimental pretest-posttest against a control group. the population includes all referred students to kharazmi university counselling center; 20 samples were selected using a convenience sampling method.  findings: the results co...

This document is the first deliverable of work package three – Modelling and Design. It covers white papers that have been produced and peer-reviewed by the M-Zones partners by the end of July 2003. Purpose of this document is to provide a holistic view of accomplished work regarding the modelling and design of management concepts/systems for smart spaces and to evaluate the research quality of...

Global software development is an inexorable trend in the software industry. The impact of the trend in conventional software development can be found in many of its aspects. One of them is task or work package allocation. Task allocation was traditionally driven by resource competency and availability but GSD introduces new complexities to this process including time-zones differences, costs a...

An M/M/1 queueing system with second optional service and unreliable server is studied. We consider that the server works at different rate rather than being idle during the vacation period. The customers arrive to the system according to Poisson process with state dependent rates depending upon the server’s status. All customers demand the first essential service whereas only some of them dema...

Randomly selected generator bars from a 50-year-old Norwegian hydro power were examined in this work. Typical non-destructive tests, as partial discharge and dissipation factor measurements initially performed at both 50 Hz 0.1 Hz. Then, the AC breakdown strength of epoxy/mica/glass fibre reinforced bar insulation was measured by gradually increasing voltage steps 5 kV with duration 1 min until...