In this study, we consider a single server vacation queueing model with optional bulk service and an un-reliable server. A single server provides first essential service (FES) to all arriving customers one by one; apart from essential service, he can also facilitate the additional phase of optional service (OS) in batches of fixed size b(≥ 1), in case when the customers request for it. The serv...

It is a widely-supported tenet in human-computer interaction that the meaningful unit of analysis is not the technical device alone, but the technical device together with the person interacting with it; the reason is that what is a relevant property of a technology is only understandable with respect to the specific goals and resources activated during its usage. This basic reflection should a...

L ike the waistband of your pants after Thanksgiving dinner, neurons have to be able to stretch and then return to shape. On page 269 Hammarlund et al. pinpoint the protein that confers this springiness, showing that neurons lacking the molecule fracture. Movements such as bending your elbow put strain on neurons, but the source of the cells' elasticity has been a mystery. Hammar-lund et al. su...

A recent theory of the nearly axisymmetric vortex breakdown in a pipe is presented. We study the motion of an axisymmetric and inviscid swirling ow in a pipe with certain boundary conditions that may reeect the physical situation. The theory is built of global analysis of solutions of the Squire-Long equation and linear stability analysis of these solutions. The theory uniies the major previous...

Executive summary This deliverable documents the work performed by the authors in the context of work package WP7 of the EU project BRICS. The authors of this report all work at the University of Bergamo, which is the partner in BRICS responsible for promoting and supporting the development of Open and Flexible Robotic Systems. WP7 is a cross-sectional work package as Openness and Flexibility a...

Within the EU FP6 Integrated Project WINNER, adaptive transmission is investigated as a key technology for boosting the spectral efficiency of a new radio interface for 4G systems. Adaptive allocation of time-frequency chunks in an OFDM-based system offers a significant potential, but also poses challenges. Within work package two of WINNER, we study critical issues such as the feasibility of a...

This document describes given an analysis of the computer security aspects of the demonstrator developed in work package 12 of the Wireless Health and Care (WsHC) project. A risk analysis is performed and requirements for the system are established. The implementation of security measurements implemented in the demonstrator is discussed. Finally the risk analysis is revised according to the pro...

The homotopy Lie (L∞) categorification of D-particle field theory in the method of gauged S-duality spontaneous breakdown is investigated. We show the non-trivial definition of the D-particle fields category and give explicit formulae for its higher composition structures. As a result, we can recognize the physical significance of D-particle fields for determinism and undeterminism.

It is widely accepted that software measurement should be automated by proper tool support whenever possible and reasonable. While many tools exist that support automated measurement, most of them lack the possibility to reuse defined metrics and to conduct the measurement in a standardized way. This article presents an approach to anchor software measures on elements of the process model. This...

This paper attempts to extend our understanding of service operations in the advent virtual services. Through analysis central aspects delivery process and extant classification literature, introduces a provider-customer input-based classification. Empirical breakdown number processes their constituent parts suggests that for be complete it ought consider actions input provider customer. Additi...