The interest in modelling, analysis and optimisation of supply chain structures has increased in the last decade. Among the reasons are globalisation, a general speed-up of the rate of change in the business environment, the trend towards more outsourcing of activities, and the rapid development in IT. This development has caused more and more people to realise the benefits of supply chain managem

Abstract—The thorough analysis and the design of a complete 2.2 GHz quadrature receiver front-end suited for low-power applications is reported in this work. The circuit, built in a 90nm CMOS process, features a stacked single-ended low-noise amplifier and a self-oscillating mixer. The oscillator LC tank is designed to provide gain at low frequency without decreasing the quality factor at the osci

Implementation aspects of self-tuning regulators are discussed in the paper. There is a large discrepancy between simulation or academic algorithms and practical algorithms. In the idealized environment of simulations it is easy to get different types of adaptive algorithms to perform well. In practice the situation is quite opposite. The adaptive or self-tuning controller must be able to handle n

This paper is dedicated to model order reduction of linear time-invariant systems. The main contribution of this paper is the derivation of two scalable stability-preserving model reduction algorithms. Both algorithms constitute a development of a recently proposed model reduction method. The algorithms perform a curve fitting procedure using frequency response samples of a model and semidefinite

The overall purpose of this paper is to contribute to the development of an internal crisis communication perspective. More precisely, we want to discuss and illuminate the need for an emergent, co-worker-oriented perspective on crises. Such a perspective implies a broader view on crises and a need to include change communication as an allied re-search field to crisis communication, and not at lea

The paper discusses parameter estimation and detection in Laplace distributed noise. The received signal is modeled as r(·)=As(·,&thetas;)+n(·), where A is an unknown amplitude, &thetas; is the parameter vector to be estimated and n(·) is independent Laplace distributed noise. The simultaneous maximum likelihood estimator of (A,&thetas;) is derived. The derived estimator is based on a

A stratified sample of 118 university teachers took part in an investigation in which they assessed their organization on 17 dimensions. Two of the dimensions, creativity and productivity, were regarded as consequences of organizational conditions. Each of two factor analyses carried out, one including gender and the other not, yielded five factors, one of them formed by the dimensions of creativi

The aim of this study was to visualize design regulations of furniture by means of interactive multimedia technology based on cognitive theories and practical examples. Furthermore, the usage of the visualized regulations to support education, communication, learnability, relevance and attitudes was evaluated. The visualized regulations were the result of a design process involving experts and pot

Proton exchange membrane fuel cells (PEMFCs) are highly integrated to include fuel processing, fuel cell stack, associated heat exchangers and/or post-combustion units. The integration is in terms of not only species flows, but also energy balances. This paper presents a simulation approach to analyze and improve PEMFCs stack and heat rejection load on the radiator. It is based on an overall fuel