58,121 research outputs found
Innovation strategies in central Europe: a corporate perspective
This paper seeks to outline the innovations strategies that various corporations have pursued in Central Europe over the last few decades. It will examine from a corporate perspective the scope and definition of innovation, highlighting how this has changed in today's eclectic ever changing environment. Drawing upon cases studies, this paper will highlight best practice in formulating innovation strategies within Central Europe. In conclusion, it will be argued that in spite of living in an environment where the pressure for companies to constantly reinvent some part of themselves is increasing, companies could greatly benefit from taking time to pause and consider how they can capitalise on the key lessons and best practice considerations that have arisen
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The role of user requirements research in medical device development
Aims and Objectives: This research aims to suggest a concise framework to help in the better
conceptualisation and integration of users in the medical device development (MDD) process. The
current economic, political and social climate concerning the matter of healthcare delivery has
resulted in the emergence of numerous users and user groups for whom the healthcare system has not
previously catered for. These users have created ambiguity for the designers and manufacturers of
medical devices as the boundaries between their needs and requirements have blurred, outdating
current methods of MDD to meet consumer needs.
Research Design and Methodology: The research methodology begins primarily with conducting a
literature search on the theories relating to user requirements and medical device development. The
paper outlines these findings through initially describing users and user involvement and relating
them to medical devices. The cross-disciplinary nature of healthcare influenced the investigation into
multiple disciplines including; IT, Ergonomics – particularly participatory research, Psychology and
Design. These disciplines expose various methods and processes, which are useful to user
requirements research. These methods were analysed for their compatibility, and then used to
construct a conceptual framework for user involvement in MDD.
Results: The research insinuates the true significance of user involvement and hence resulted in the
formation of a conceptual framework to aid user involvement in the MDD process. The framework is
produced by the amalgamation of relevant methods examined across the disciplines, in a
complimentary fashion.
Conclusion: The originality of this research lies in its use of a multidisciplinary approach. Previous
research claiming multi-methods has dealt with combining two disciplines or methods at a time i.e.
Computer supported cooperative work (CSCW) with participatory research (Scandurra et al, 2008)
for the needs analysis of healthcare professionals only. Collaboration across disciplines has also been
investigated (Johnson et al, 2005), but this was for the purpose of redesign rather than initial designs.
This framework can help medical device designers to fully access all user requirements through more
extensive collaboration right at the start. It reduces the risk of high costs involved in device rejection,
usually associated with belated recognition of user needs in the design cycle
STAR adaptation of QR algorithm
The QR algorithm used on a serial computer and executed on the Control Data Corporation 6000 Computer was adapted to execute efficiently on the Control Data STAR-100 computer. How the scalar program was adapted for the STAR-100 and why these adaptations yielded an efficient STAR program is described. Program listings of the old scalar version and the vectorized SL/1 version are presented in the appendices. Execution times for the two versions applied to the same system of linear equations, are compared
Dynamics of Charged Bulk Viscous Collapsing Cylindrical Source With Heat Flux
In this paper, we have explored the effects of dissipation on the dynamics of
charged bulk viscous collapsing cylindrical source which allows the out follow
of heat flux in the form of radiations. Misner-Sharp formulism has been
implemented to drive the dynamical equation in term of proper time and radial
derivatives. We have investigated the effects of charge and bulk viscosity on
the dynamics of collapsing cylinder. To determine the effects of radial heat
flux, we have formulated the heat transport equations in the context of
Mller-Israel-Stewart theory by assuming that thermodynamics
viscous/heat coupling coefficients can be neglected within some approximations.
In our discussion, we have introduced the viscosity by the standard
(non-casual) thermodynamics approach. The dynamical equations have been coupled
with the heat transport equation equation, the consequences of resulting
coupled heat equation have been analyzed in detail.Comment: 17 Pages, no figur
Performance of the split-symbol moments SNR estimator in the presence of inter-symbol interference
The Split-Symbol Moments Estimator (SSME) is an algorithm that is designed to estimate symbol signal-to-noise ratio (SNR) in the presence of additive white Gaussian noise (AWGN). The performance of the SSME algorithm in band-limited channels is examined. The effects of the resulting inter-symbol interference (ISI) are quantified. All results obtained are in closed form and can be easily evaluated numerically for performance prediction purposes. Furthermore, they are validated through digital simulations
Impacts of plug-in hybrid vehicles and combined heat and power technologies on electric and gas distribution network losses
Distribution network operators (DNOs) require strategies that can offset the tradeoffs new embedded technologies have on their assets. This paper employs modelling to show that through control device manipulation, gas and electric (G&E) network operators can influence savings in energy losses under the presence of plug-in hybrid vehicles (PHEVs) and combined heat and power technologies (CHPs). An integrated gas and electric optimal power flow (OPF) tool is introduced to undertake various case studies. The OPF tool evaluates the technical impacts experienced in the networks when DNOs apply a "plug and forget" operation strategy and then compares the results against a "loss minimisation" strategy. Results show the benefits in applying different strategies are more considerable in electric networks than in gas networks. The study corroborates that an integrated G&E analysis offers a fresh perspective for stakeholders in evaluating energy service networks performance under different operation strategies
Stop Co-Annihilation in the Minimal Supersymmetric Standard Model Revisited
We re-examine the stop co-annihilation scenario of the Minimal Supersymmetric Standard Model, wherein a bino-like lightest supersymmetric particle has a thermal relic density set by co-annihilations with a scalar partner of the top quark in the early universe. We concentrate on the case where only the top partner sector is relevant for the cosmology, and other particles are heavy. We discuss the cosmology with focus on low energy parameters and an emphasis on the implications of the measured Higgs boson mass and its properties. We find that the irreducible direct detection signal correlated with this cosmology is generically well below projected experimental sensitivity, and in most cases lies below the neutrino background. A larger, detectable, direct detection rate is possible, but is unrelated to the co-annihilation cosmology. LHC searches for compressed spectra are crucial for probing this scenario
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