6 research outputs found

    Introducing Research Loop to Achieve Open Innovation for Research Centers in Quintuple Helix

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    Open Innovation has great significance and so far several definitions have been proposed, the most widely accepted definition referring to the correlation of Open Innovation with research organizations. Helix models have been proposed to analyze how collaborations work among key stakeholders and research centers and they were found to have a prominent part in all their iterations. This work presents the challenges that research organizations face in terms of interaction with other organizations, their operations (resources, funding issues), and how they determine the research directions to be followed, and analyzes how the adoption of Open Innovation practices can tackle these challenges and the effects it has. The Open Innovation practices of outsourcing and co-creation are mentioned, with the latter needing to be further developed and elaborated. We propose a novel process, called Research Loop, which aims and succeeds to provide Open Innovation for research organizations. It achieves to involve several different organizations, identify existing research gaps, and produce new knowledge. The proposed process includes the various advantages of applying Open Innovation to the analyzed research centers

    A New Step-by-Step Model for Implementing Open Innovation

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    Open innovation has been found to have many benefits and tangible results for those who partake in it. This study aims to showcase the importance of open innovation, and through a theoretical example present how an organization (university, research center, company, firm, etc.) can take action to implement open innovation guidelines. In this paper, firstly, a demonstration showing how open innovation can work with multiple partners is shown. Secondly, a model is presented that shows the steps an organization must follow to successfully implement open innovation. This model covers the introduction of an organization to open innovation from the initial interest to the implementation of the final product. Several success stories are also presented to demonstrate how these steps have been used by major organizations during several collaborations as well as the results produced from implementing open innovation

    A Performance Comparison of Pilot-Scale Sand Filtration and Membrane Filtration of Glafkos River Water

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    Surface-water treatment plants use the flocculation–precipitation method followed by gravity filters to remove suspended solids. In the present work, the replacement of gravity filters with ultrafiltration membrane units is suggested to improve the efficiency of water treatment and to reduce fixed and operational costs. A parametric pilot-scale study was conducted to compare the filtration efficiency of a deep bed and a membrane module for water-simulating river water of various turbidity degrees. Suspensions of kaolinite were prepared to simulate turbidity of the Glafkos River, Achaia Region of Greece and were filtered using a laboratory sand-bed column and a pilot ultrafiltration (UF) membrane unit. Operational parameters such as the particle concentration ratio, the flow rate, and the filter head loss were studied in the case of the granular bed. In the case of membrane filtration, the permeate flux, turbidity, and membrane permeability loss due to fouling were tested. A discussion in terms of the operational cost and environmental impacts was performed. Filtration capacity of the sand filter is a decreasing function of the flow rate and it was found less efficient than membrane ultrafiltration for increased turbidity or increased particle concentration values. Membrane ultrafiltration could achieve long-term economic profit while it is characterized by minimum environmental impact since the use of chemical reagents and the production of waste sludge are limited

    Anaerobic Co-Digestion of Agricultural Residues Produced in Southern and Northern Greece

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    In Greece biomass is often being disposed of uncontrollably, resulting in significant environmental impacts. The aim of this study is the single-stage anaerobic co-digestion assessment, valorizing Northern and Southern Greece mixtures, resulting from previous literature reviews, experimental designs, and biochemical methane potential (BMP) assays. Regarding the methane yield maximization, in Northern Greece, the most suitable mixture was 10% corn silage, 80% cattle manure, and 10% malt; while in Southern Greece it was 10% corn silage, 57% cattle manure, 23% orange peels, and 10% olive pomace for fall/winter season. The hydraulic retention time (HRT) was set at 20 d and an initial organic loading rate (OLR) of 2 g COD/(L·d) was applied, with a view to gradually increase it. However, volatile fatty acids accumulation was observed, which led to OLR reduction to 1.5 g COD/(L·d) for both experiments. The Northern Greece reactor operated successfully for OLR 1.5–5 g COD/(L·d), while further increase led to system failure. On the other hand, the reactor of the Southern Greece mixture operated successfully at OLR 1.5–2 g COD/(L·d), but further operation indicated inadequacy, probably due to inhibitor (such as limonene) accumulation. Mixtures consisting of corn silage, cattle manure, and malt can be successfully valorized at high OLR. However, further investigation for mixtures with orange peels is suggested due to the presence of inhibitors

    Anaerobic Co-Digestion of Agricultural Residues Produced in Southern and Northern Greece

    No full text
    In Greece biomass is often being disposed of uncontrollably, resulting in significant environmental impacts. The aim of this study is the single-stage anaerobic co-digestion assessment, valorizing Northern and Southern Greece mixtures, resulting from previous literature reviews, experimental designs, and biochemical methane potential (BMP) assays. Regarding the methane yield maximization, in Northern Greece, the most suitable mixture was 10% corn silage, 80% cattle manure, and 10% malt; while in Southern Greece it was 10% corn silage, 57% cattle manure, 23% orange peels, and 10% olive pomace for fall/winter season. The hydraulic retention time (HRT) was set at 20 d and an initial organic loading rate (OLR) of 2 g COD/(L·d) was applied, with a view to gradually increase it. However, volatile fatty acids accumulation was observed, which led to OLR reduction to 1.5 g COD/(L·d) for both experiments. The Northern Greece reactor operated successfully for OLR 1.5–5 g COD/(L·d), while further increase led to system failure. On the other hand, the reactor of the Southern Greece mixture operated successfully at OLR 1.5–2 g COD/(L·d), but further operation indicated inadequacy, probably due to inhibitor (such as limonene) accumulation. Mixtures consisting of corn silage, cattle manure, and malt can be successfully valorized at high OLR. However, further investigation for mixtures with orange peels is suggested due to the presence of inhibitors

    Application of Radiation Chemistry to Some Selected Technological Issues Related to the Development of Nuclear Energy

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