7,696 research outputs found

    Cultivating Collaborative Improvement: An Action Learning Approach

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    As competitive pressure mounts to innovate in the global knowledge economy, many organizations are exploring new ways of collaborating with their supply chain partners. However, the process of implementing collaborative initiatives across disparate members of supply networks is fraught with difficulties. One approach designed to tackle the difficulties of organizational change and inter-organizational improvement in practice is `action learningÂż. This paper examines the experiential lessons that arise when cultivating collaborative improvement in an interorganizational learning environment. The authors, acting as action researchers, facilitated a practical learning program in an Extended Manufacturing Enterprise involving a large system integrator in the automotive industry and three of its\ud suppliers. Based on this experience, a practical learning model is offered to promote and facilitate inter-organizational change as part of a collaborative improvement process

    Buying High Tech Products

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    Prior research on technology-intensive (TI) markets makes abstraction of the social context in which transactions take place. In contrast with this prior literature, the authors show that buyer-vendor transactions in TI markets are relationally and structurally embedded in an interfirm network. Their main premise is that buyers in TI markets prefer vendors with whom they can share a strong tie, and that in turn buyers want these vendors to share strong ties with their component manufacturers. This is an important addition to TI literature and to the on-going debate on the strength of ties in the sociology, management and marketing literatures. The authors also specifically consider how characteristics focal to TI markets, such as the know-how buyers possess or the pace of technological change they perceive, affect the extent to which buying behavior is relationally and structurally embedded. An empirical test in the computer network market shows good support for the developed theory.tie strength;embeddedness;buying behavior;conjoint analysis;technology-intensive markets

    Optimized Performance Evaluation of LTE Hard Handover Algorithm with Average RSRP Constraint

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    Hard handover mechanism is adopted to be used in 3GPP Long Term Evolution (3GPP LTE) in order to reduce the complexity of the LTE network architecture. This mechanism comes with degradation in system throughput as well as a higher system delay. This paper proposes a new handover algorithm known as LTE Hard Handover Algorithm with Average Received Signal Reference Power (RSRP) Constraint (LHHAARC) in order to minimize number of handovers and the system delay as well as maximize the system throughput. An optimized system performance of the LHHAARC is evaluated and compared with three well-known handover algorithms via computer simulation. The simulation results show that the LHHAARC outperforms three well-known handover algorithms by having less number of average handovers per UE per second, shorter total system delay whilst maintaining a higher total system throughput.Comment: 16 pages, 9 figures, International Journal of Wireless & Mobile Networks (IJWMN

    Insights in the cost of continuous broadband Internet on trains for multi-service deployments by multiple actors with resource sharing

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    The economic viability of broadband Internet services on trains has always been proved difficult, mainly due to a high investment cost and low willingness to pay by train passengers, but also due to unused opportunities such as non-passenger services (e.g. train performance monitoring, crew services) and optimization of the resources consumed to offer Internet services. Evaluating opportunities to improve the return on investment is therefore essential towards profitability of the business case. By efficiently sharing resources amongst services, costs can be pooled over several services in order to reduce the investment cost per service. Current techno-economic evaluation models are hard to apply to cost allocation in a multi-service deployment with multiple actors and resource sharing. We therefore propose a new evaluation model and apply it to a deployment of Internet services on trains. We start with a detailed analysis of the technical architecture required to provide Internet access on trains. For each component, we investigate the impact by the different services on resource consumption. The proposed techno-economic evaluation model is then applied in order to calculate the total cost and allocate the used and unused resources to the appropriate services. In a final step, we calculate the business case for each stakeholder involved in the offering of these services. This paper details the proposed model and reports on our findings for a multi-service deployment by multiple actors. Results show important benefits for the case that considers the application of resource sharing in a multi-service, multi-actor scenario and the proposed model produces insights in the contributors to the cost per service and the unused amount of a resource. In addition, ex-ante insights in the cost flows per involved actor are obtained and the model can easily be extended to include revenue flows to evaluate the profitability per actor. As a consequence, the proposed model should be considered to support and stimulate upcoming multi-actor investment decisions for Internet-based multi-service offerings on-board trains with resource sharing

    Safe, Remote-Access Swarm Robotics Research on the Robotarium

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    This paper describes the development of the Robotarium -- a remotely accessible, multi-robot research facility. The impetus behind the Robotarium is that multi-robot testbeds constitute an integral and essential part of the multi-agent research cycle, yet they are expensive, complex, and time-consuming to develop, operate, and maintain. These resource constraints, in turn, limit access for large groups of researchers and students, which is what the Robotarium is remedying by providing users with remote access to a state-of-the-art multi-robot test facility. This paper details the design and operation of the Robotarium as well as connects these to the particular considerations one must take when making complex hardware remotely accessible. In particular, safety must be built in already at the design phase without overly constraining which coordinated control programs the users can upload and execute, which calls for minimally invasive safety routines with provable performance guarantees.Comment: 13 pages, 7 figures, 3 code samples, 72 reference

    Changes in the French Defence Innovation System: New roles and capabilities for the Government Agency for Defence.

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    Defence innovation systems are structured around two main groups of players that interact in the development of complex programmes: the state (the client and the government agency) and the systems integrators. Technological and institutional changes since the 1990s have affected the division of labour and knowledge in the industry. In this paper, we show the origins of these changes based on information derived from 45 qualitative interviews conducted between 2000 and 2008, which demonstrate the new capabilities that have been created within the national innovation system (NIS). We explain how the role and the capabilities of the French Government Agency for Defence (Direction GĂ©nĂ©rale de l'Armement—DGA) have developed from “project architect” to “project manager”. These new capabilities create new interactions in the French defence innovation system and new roles for the DGA.Defence; Institutional change; National innovation system; co-evolution; Government agency; Knowledge; Capabilities; Technological systems;

    Changes in the French defence innovation system: New roles and capabilities for the Government Agency for Defence

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    Defence innovation systems are structured around two main groups of players that interact in the development of complex programmes: the state (the client and the government agency) and the systems integrators. Technological and institutional changes since the 1990s have affected the division of labour and knowledge in the industry. In this paper we show the origins of these changes based on information derived from 45 qualitative interviews conducted between 2000 and 2008, which demonstrate the new capabilities that have been created within the national innovation system (NIS). We explain how the role and the capabilities of the French Government Agency for Defence (Direction Générale de l'Armement - DGA) have developed from " project architect " to " project manager ". These new capabilities create new interactions in the French Defence innovation system and new roles for the DGA.Technological systems, Capabilities, Knowledge, Government agency, Co-evolution, National Innovation System, Defence, Institutional Change.

    Insights in costing of continuous broadband internet on trains to allow delivering value via services

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    Continuous broadband Internet on trains is at the moment being deployed worldwide but not always profitable. Solely providing internet for travellers will have a negative return on investment. But, different service providers could be interested to share the unused capacity of resources deployed to offer other services. In this way, resources and their costs are shared over several services and revenues may rise above the total cost. Service operators should therefore be able to make well informed decisions based on an ex-ante estimate of the cost of a service. Using activity based costing (ABC), we investigate on the one hand how to determine the total cost of resources supplied and on the other how to estimate the cost of consumed resources of a service. Our results show that ABC can adequately cope with the case specific nature of the rollout of services on a train. ABC provides insights in the contributors to the cost per service and the unused capacity. Moreover, obtained results can be used to distribute the cost based on the usage of resources, activities and services, evaluate the service mix and identify candidates for outsourcing. Still, ABC does not give insight in how the unused capacity of a resource should be allocated. The optimal allocation of unused capacity will therefore remain the focus of future work
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