11,458 research outputs found

    The Importance of Clusters for Sustainable Innovation Processes: The Context of Small and Medium Sized Regions

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    The purpose of the current paper is to provide a critical state-of-the-art review of current research on clusters and its correlation to innovation dynamics in small and medium-sized regions. In particular, we focus on the systematization of the main concepts and theoretical insights that are tributary to the cluster overview in terms of its relevance for the sustainability of the innovation processes, knowledge production and diffusion, which take place inside small and medium-sized regions. The present working paper takes into account the initial studies on English industrial districts (in the nineteenth century), passing through the Italian industrial districts (in the 70s and 80s of the twentieth century), until the modern theories of business clusters and innovation systems. These frameworks constitute the basis of an approach to endogenous development, which gives a central role to the interaction between economic actors, the society and the institutions and to the identification, mobilization and combination of potential resources within a particular geographical area.Cluster; Innovation; Endogenous development; Territory.

    Policies and Motivations for the CO2 Valorization through the Sabatier Reaction Using Structured Catalysts. A Review of the Most Recent Advances

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    The current scenario where the effects of global warming are more and more evident, has motivated different initiatives for facing this, such as the creation of global policies with a clear environmental guideline. Within these policies, the control of Greenhouse Gase (GHG) emissions has been defined as mandatory, but for carrying out this, a smart strategy is proposed. This is the application of a circular economy model, which seeks to minimize the generation of waste and maximize the efficient use of resources. From this point of view, CO2 recycling is an alternative to reduce emissions to the atmosphere, and we need to look for new business models which valorization this compound which now must be considered as a renewable carbon source. This has renewed the interest in known processes for the chemical transformation of CO2 but that have not been applied at industrial level because they do not offer evident profitability. For example, the methane produced in the Sabatier reaction has a great potential for application, but this depends on the existence of a sustainable supply of hydrogen and a greater efficiency during the process that allows maximizing energy efficiency and thermal control to maximize the methane yield. Regarding energy efficiency and thermal control of the process, the use of structured reactors is an appropriate strategy. The evolution of new technologies, such as 3D printing, and the consolidation of knowledge in the structing of catalysts has enabled the use of these reactors to develop a wide range of possibilities in the field. In this sense, the present review presents a brief description of the main policies that have motivated the transition to a circular economy model and within this, to CO2 recycling. This allows understanding, why efforts are being focused on the development of different reactions for CO2 valorization. Special attention to the case of the Sabatier reaction and in the application of structured reactors for such process is paid

    Personnel policies in the European firms: some evidence of the existing model(s) and the potential role of Corporate Universities.

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    This study deals with the attitude of European firms towards personnel policies analysed on a national basis. Provided the relevance of Human Resources (HR) practices in terms of the internal organisation of knowledge of the firm, we assess the main characteristic of personnel policies in 12 European countries both in terms of HR department position within the firm and in terms of human capital development practices. Not only is the issue significant in terms of Human Resource Management but also in terms of the debate on the role of the institutions in determining personnel policies, and notably in terms of the debate on the "varieties of capitalism”. For this purpose the paper develops a cluster analysis among 16 European countries showing the possible influence of institutional models on personnel policies. The same analysis is also developed for intertemporal comparative purposes. The second part of the paper analysis relates personnel policies to the phenomenon of Corporate Universities (CU), being they intended as a vehicle of firms’ capability to react to organisational and technological change. Within the complex relationship between firm’s organization and knowledge CU may in fact represent a consistent way to keep HR departments and firms’ strategies tightly connected, possibly assuming a systemic vision of the firm open to employees and in some cases to other stakeholders. The main features of European Corporate Universities will thus be acknowledged by looking at their main characteristics, with particular reference to their relation with HR departments and to the external factors that have contributed to their development. The paper uses theoretical tools provided by economic literature on training, human capital and knowledge management, combining them with a descriptive analysis of the empirical evidence coming from data on both Corporate Universities and firms’ personnel policy at European level. In particular data on firms’ personnel policy will come from the survey performed in 2005 by Cranet, the largest academic research network dedicated to a comparative analysis of developments in Human Resource Management in public and private organisations. Such data will be integrated by surveys on firms’ training practices at European level and by the (limited) empirical literature dealing with European Corporate Universities.

    Treatment and valorization plants in materials recovery supply chain

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    Aim of industrial symbiosis is to create synergies between industries in order to exchange resources (by-products, water and energy) through geographic proximity and collaboration [1]. By optimizing resource flows in a “whole-system approach”, a minimization of dangerous emissions and of supply needs can be achieved. Resources exchanges are established to facilitate recycling and re-use of industrial waste using a commercial vehicle. Several paths can be identified in order to establish an industrial symbiosis network (Figure 1, left), in relation (i) to the life cycle phase (raw material, component, product) and (ii) to the nature (material, water, energy) of the resource flows to be exchanged. Sometimes by-products and/or waste of an industrial process have to be treated and valorized in order to become the raw materials for others. In particular, two main treatment processes can be identified: refurbishment/upgrade for re-use (Figure 1, center) and recycling for material recovery (Figure 1, right). A brief overview of technological and economic aspects is given, together with their relevance to industrial symbiosis

    Mass Customization in SMEs:Literature Review and Research Directions

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    High-Performance Cloud Computing: A View of Scientific Applications

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    Scientific computing often requires the availability of a massive number of computers for performing large scale experiments. Traditionally, these needs have been addressed by using high-performance computing solutions and installed facilities such as clusters and super computers, which are difficult to setup, maintain, and operate. Cloud computing provides scientists with a completely new model of utilizing the computing infrastructure. Compute resources, storage resources, as well as applications, can be dynamically provisioned (and integrated within the existing infrastructure) on a pay per use basis. These resources can be released when they are no more needed. Such services are often offered within the context of a Service Level Agreement (SLA), which ensure the desired Quality of Service (QoS). Aneka, an enterprise Cloud computing solution, harnesses the power of compute resources by relying on private and public Clouds and delivers to users the desired QoS. Its flexible and service based infrastructure supports multiple programming paradigms that make Aneka address a variety of different scenarios: from finance applications to computational science. As examples of scientific computing in the Cloud, we present a preliminary case study on using Aneka for the classification of gene expression data and the execution of fMRI brain imaging workflow.Comment: 13 pages, 9 figures, conference pape

    DEVELOPING STRATEGIC SOCIAL RESPONSIBILITY FOR THE MANUFACTURING SMALL AND MEDIUM ENTERPRISE: AN EXPLORATIVE STUDY

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    Purpose of the study: This study in Malaysia explores the adoption of strategic social responsibility (SR) practices among manufacturing-based small and medium enterprises (SMEs). Methodology: A qualitative approach employing the in-depth interview method was taken-up for this study. Eight respondents from manufacturing SMEs in Penang were randomly selected from the list published by the National SME Agency, which is also reckoned as SMECorp and participated in the study. The selection of senior level managers as respondents was also based on their understanding of strategic SR initiatives and decision-making capacity within their organizations. In order to further ensure that all respondents were equal in their views, the study avoided any attempt to interfere with or incorporate existing business-related practices of SMEs, which could influence the findings of this study. Main Findings: In order to enable manufacturing SMEs to pursue sustainable and profitable SR practices, the findings first propose a six-phase SR implementation methodology. Secondly, it includes a risk assessment matrix and thirdly, it is followed by a risk transition matrix. The risk assessment and transition matrices serve as determining factors for this sector to pursue such initiatives. Applications of this study: This enables the adoption of SR initiatives which converts to business competitiveness while positioning the SME strategically from social or environmental or both perspectives. Strategic SR helps to position business, thus proving beneficial for this sector that lacks a method to address SR in a benefitting way. This is vital because strategically aligned SR is able to influence business positioning, thus proving beneficial by contributing to the revenue, image, and brand positioning for this sector. Novelty/Originality of this study: Being a preliminary study, the findings identify the steps that are to be taken by manufacturing entities of smaller magnitude for SR-related business positioning

    Clustering algorithm for local area network design in a CIM environment

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    Communication systems have come to be regarded as being one of the most important aspects in manufacturing enterprises in recent years. It continues to offer enormous potential for improving the efficiency of manufacturing enterprises through Computer Integrated Manufacturing (CIM). It is true however that this potential cannot be realized by developments on the communications front alone. Strategic and economic considerations in installing a communications system in a manufacturing environment is of vital significance. This thesis, at the outset attempts to bring out some of the issues in the area of communications (research), specifically in relation to CIM. A perception of prior research to some of these issues has been provided. The main focus of this thesis is placed on developing a methodology for designing an optimal flow local area network (LAN) for a CIM communications system using analytical models for resource allocation. A new representation of information flow load among the various nodes in a network is conceived which helps to determine an optimal communication traffic matrix. A decision logic to generate a system architecture based on the above information flow is designed. The various factors and variables involved in a communication network are identified. For the purpose of this study however, the most critical variables /factors of these are considered. Definitions of the various terminologies associated with these factors are provided. Experimentations are performed using the simulation approach. The main objective of this study is to help LAN designers to suggest effective configurations of the nodes to be networked so that the installation costs and propagation delays are reduced

    Cross layer reliability estimation for digital systems

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    Forthcoming manufacturing technologies hold the promise to increase multifuctional computing systems performance and functionality thanks to a remarkable growth of the device integration density. Despite the benefits introduced by this technology improvements, reliability is becoming a key challenge for the semiconductor industry. With transistor size reaching the atomic dimensions, vulnerability to unavoidable fluctuations in the manufacturing process and environmental stress rise dramatically. Failing to meet a reliability requirement may add excessive re-design cost to recover and may have severe consequences on the success of a product. %Worst-case design with large margins to guarantee reliable operation has been employed for long time. However, it is reaching a limit that makes it economically unsustainable due to its performance, area, and power cost. One of the open challenges for future technologies is building ``dependable'' systems on top of unreliable components, which will degrade and even fail during normal lifetime of the chip. Conventional design techniques are highly inefficient. They expend significant amount of energy to tolerate the device unpredictability by adding safety margins to a circuit's operating voltage, clock frequency or charge stored per bit. Unfortunately, the additional cost introduced to compensate unreliability are rapidly becoming unacceptable in today's environment where power consumption is often the limiting factor for integrated circuit performance, and energy efficiency is a top concern. Attention should be payed to tailor techniques to improve the reliability of a system on the basis of its requirements, ending up with cost-effective solutions favoring the success of the product on the market. Cross-layer reliability is one of the most promising approaches to achieve this goal. Cross-layer reliability techniques take into account the interactions between the layers composing a complex system (i.e., technology, hardware and software layers) to implement efficient cross-layer fault mitigation mechanisms. Fault tolerance mechanism are carefully implemented at different layers starting from the technology up to the software layer to carefully optimize the system by exploiting the inner capability of each layer to mask lower level faults. For this purpose, cross-layer reliability design techniques need to be complemented with cross-layer reliability evaluation tools, able to precisely assess the reliability level of a selected design early in the design cycle. Accurate and early reliability estimates would enable the exploration of the system design space and the optimization of multiple constraints such as performance, power consumption, cost and reliability. This Ph.D. thesis is devoted to the development of new methodologies and tools to evaluate and optimize the reliability of complex digital systems during the early design stages. More specifically, techniques addressing hardware accelerators (i.e., FPGAs and GPUs), microprocessors and full systems are discussed. All developed methodologies are presented in conjunction with their application to real-world use cases belonging to different computational domains
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