The Experts below are selected from a list of 188127 Experts worldwide ranked by ideXlab platform
Florian Mermillod-blondin - One of the best experts on this subject based on the ideXlab platform.
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Sustainability of gastropod introduction for ecological Engineering Solution in infiltration basins: feeding strategy of V. viviparus
Hydrobiologia, 2020Co-Authors: Valerian Estragnat, Laurence Volatier, Jean-bastien Gambonnet, Frédéric Hervant, Pierre Marmonier, Florian Mermillod-blondinAbstract:The present study aimed at evaluating the sustainability of ecological Engineering Solutions based on the introduction of the gastropod V. viviparus for maintaining the hydrological performances of infiltration basins clogged by benthic biofilms. This sustainability depends on the ability of gastropods to deal with variations in trophic resources throughout seasonal changes and so their feeding strategy. It is expected from literature that V. viviparus is a generalist species, well adapted for ecological Engineering approaches. With this objective, laboratory and field experiments were developed to measure the ability of gastropods to maintain energy body stores under several food sources and seasons, in relation with their physiological state. Our results showed that V. viviparus was not a strict generalist: it tended to be more efficient to constitute energy reserves when feeding on algae under laboratory conditions and its energy stores were positively correlated with primary productivity of the benthic biofilm in the field. Despite this higher efficiency of V. viviparus to produce energy reserves from algal resources, the survival and the levels of energy reserves measured on the field, even when trophic conditions were the harshest (low algal development), make this species a good candidate for ecological Engineering approaches.
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Sustainability of gastropod introduction for ecological Engineering Solution in infiltration basins: feeding strategy of V. viviparus
Hydrobiologia, 2020Co-Authors: Valerian Estragnat, Laurence Volatier, Jean-bastien Gambonnet, Frédéric Hervant, Pierre Marmonier, Florian Mermillod-blondinAbstract:The aim of this study was to test the sustainability of ecological Engineering Solutions based on the introduction of the gastropod V. viviparus in infiltration basins designed for groundwater recharge and clogged by benthic biofilms. This sustainability depends on the ability of gastropods to deal with variations in trophic resources throughout seasonal changes and so their feeding strategy. It is expected from literature that V. viviparus is a generalist species, well-adapted for ecological Engineering approaches. With this objective, laboratory and field experiments were developed to measure the ability of gastropods to maintain energy body stores under several food sources and seasons, in relation with their physiological state. Our results showed that V. viviparus was not a strict generalist: it tended to be more efficient to constitute energy reserves when feeding on algae under laboratory conditions and its energy stores were positively correlated with primary productivity of the benthic biofilm in the field. Despite this higher efficiency of V. viviparus to produce energy reserves from algal resources, the survival and the levels of energy reserves measured on the field, even when trophic conditions 2 were the harshest (low algal development), make this species a good candidate for ecological Engineering approaches.
I A Shatova - One of the best experts on this subject based on the ideXlab platform.
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water deaeration in water cooling systems of the stator winding in a turbogenerator with hydrogen water cooling
Thermal Engineering, 2018Co-Authors: G V Ledukhovsky, Yu E Barochkin, V. P. Zhukov, V N Vinogradov, I A ShatovaAbstract:Results of experimental investigations performed on 210–1200 MWel. power units at thermal and nuclear power stations yielded a statistical correlation of the corrosion rate for cooled copper conductors in water-cooling systems of the stator winding in a hydrogen-water cooled generator vs. cooling water quality characteristics, such as electrical conductivity, pH, and dissolved oxygen content. The content of dissolved oxygen in the cooling water is found to have a pronounced effect on the efficiency of corrosion protection of system elements. An Engineering Solution is proposed. It calls for installation of a small cavitation deaerator operating on superheated water in the cooling water return pipeline from the turbogenerator stator winding to a vacuum tank from which steam is removed by the main ejector of the turbine unit condenser or the deaerator’s own ejector. Special experimental investigations allowed the determination of the water deaeration efficiency in deaerators of the considered type. It is described by a dependence of a relative decrease in the content by weight of oxygen dissolved in the deaerated water on the water overheating at the deaerator inlet with reference to saturation temperature corresponding to the pressure in the steam suction pipeline. It was established by calculations that the proposed Engineering Solution decreased the corrosion rate of copper conductors in water-cooling systems of the stator winding, on average, by a factor of 2.1. Results of this investigation can be used in designing new power facilities or retrofitting process systems of operating hydrogen-water cooled turbogenerators.
Valerian Estragnat - One of the best experts on this subject based on the ideXlab platform.
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Sustainability of gastropod introduction for ecological Engineering Solution in infiltration basins: feeding strategy of V. viviparus
Hydrobiologia, 2020Co-Authors: Valerian Estragnat, Laurence Volatier, Jean-bastien Gambonnet, Frédéric Hervant, Pierre Marmonier, Florian Mermillod-blondinAbstract:The present study aimed at evaluating the sustainability of ecological Engineering Solutions based on the introduction of the gastropod V. viviparus for maintaining the hydrological performances of infiltration basins clogged by benthic biofilms. This sustainability depends on the ability of gastropods to deal with variations in trophic resources throughout seasonal changes and so their feeding strategy. It is expected from literature that V. viviparus is a generalist species, well adapted for ecological Engineering approaches. With this objective, laboratory and field experiments were developed to measure the ability of gastropods to maintain energy body stores under several food sources and seasons, in relation with their physiological state. Our results showed that V. viviparus was not a strict generalist: it tended to be more efficient to constitute energy reserves when feeding on algae under laboratory conditions and its energy stores were positively correlated with primary productivity of the benthic biofilm in the field. Despite this higher efficiency of V. viviparus to produce energy reserves from algal resources, the survival and the levels of energy reserves measured on the field, even when trophic conditions were the harshest (low algal development), make this species a good candidate for ecological Engineering approaches.
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Sustainability of gastropod introduction for ecological Engineering Solution in infiltration basins: feeding strategy of V. viviparus
Hydrobiologia, 2020Co-Authors: Valerian Estragnat, Laurence Volatier, Jean-bastien Gambonnet, Frédéric Hervant, Pierre Marmonier, Florian Mermillod-blondinAbstract:The aim of this study was to test the sustainability of ecological Engineering Solutions based on the introduction of the gastropod V. viviparus in infiltration basins designed for groundwater recharge and clogged by benthic biofilms. This sustainability depends on the ability of gastropods to deal with variations in trophic resources throughout seasonal changes and so their feeding strategy. It is expected from literature that V. viviparus is a generalist species, well-adapted for ecological Engineering approaches. With this objective, laboratory and field experiments were developed to measure the ability of gastropods to maintain energy body stores under several food sources and seasons, in relation with their physiological state. Our results showed that V. viviparus was not a strict generalist: it tended to be more efficient to constitute energy reserves when feeding on algae under laboratory conditions and its energy stores were positively correlated with primary productivity of the benthic biofilm in the field. Despite this higher efficiency of V. viviparus to produce energy reserves from algal resources, the survival and the levels of energy reserves measured on the field, even when trophic conditions 2 were the harshest (low algal development), make this species a good candidate for ecological Engineering approaches.
Susumu Kunifuji - One of the best experts on this subject based on the ideXlab platform.
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effectiveness of Engineering Solution case document search based on triz contradiction matrix theory
International Conference on Knowledge-Based and Intelligent Information and Engineering Systems, 2009Co-Authors: Koji Yamada, Motoki Miura, Tessai Hayama, Susumu KunifujiAbstract:We propose a method to manage documents of Engineering Solution case based on TRIZ contradiction matrix theory. The document of Engineering Solution case involves know-how and techniques for solving mechanical issue. Usually the documents are written by engineers and practitioners, and managed by a company for sharing and inheriting among employees. However, an engineer who lacks literacy cannot find the previous case documents due to the inadequate keyword selections. To solve the query issue, we introduce TRIZ contradiction matrix theory for categorizing case documents. The engineers can retrieve adequate case documents by selecting improvement parameter and deterioration parameter on the matrix. Since the classification based on the matrix substantially categorize the case documents in terms of the problem solving methodology, it is effective and straightforward way of the specialized field and the key word. It is construction of the knowledge management support system that applies the idea of TRIZ. The problem solving that uses the reference information on this system is practiced and effectiveness is verified.
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KES (2) - Effectiveness of Engineering Solution Case Document Search Based on TRIZ Contradiction Matrix Theory
Knowledge-Based and Intelligent Information and Engineering Systems, 2009Co-Authors: Koji Yamada, Motoki Miura, Tessai Hayama, Susumu KunifujiAbstract:We propose a method to manage documents of Engineering Solution case based on TRIZ contradiction matrix theory. The document of Engineering Solution case involves know-how and techniques for solving mechanical issue. Usually the documents are written by engineers and practitioners, and managed by a company for sharing and inheriting among employees. However, an engineer who lacks literacy cannot find the previous case documents due to the inadequate keyword selections. To solve the query issue, we introduce TRIZ contradiction matrix theory for categorizing case documents. The engineers can retrieve adequate case documents by selecting improvement parameter and deterioration parameter on the matrix. Since the classification based on the matrix substantially categorize the case documents in terms of the problem solving methodology, it is effective and straightforward way of the specialized field and the key word. It is construction of the knowledge management support system that applies the idea of TRIZ. The problem solving that uses the reference information on this system is practiced and effectiveness is verified.
Sallent Roig, José Oriol - One of the best experts on this subject based on the ideXlab platform.
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Experimental proof of concept of an SDN-based traffic Engineering Solution for hybrid satellite-terrestrial mobile backhauling
'Wiley', 2019Co-Authors: Mendoza Montoya, Jesús Fabián, Ferrús Ferré, Ramón Antonio, Sallent Roig, José OriolAbstract:This is the peer reviewed version of the following article: Mendoza, F, Ferrus, R, Sallent, O. Experimental proof of concept of an SDN‐based traffic Engineering Solution for hybrid satellite‐terrestrial mobile backhauling. Int J Satell Commun Network. 2019; 37: 630– 645, which has been published in final form at https://doi.org/10.1002/sat.1303. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-ArchivingSatellite networks are expected to be an integral part of 5G service deployment. One compelling use case is mobile backhauling, where the exploitation of a satellite component can improve the reach, robustness, and economics of 5G rollout. The envisaged availability of new satellite capacity, together with the development of better integration approaches for the provisioning and operation of the satellite component in a more flexible, agile, and cost-effective manner than done today, are expected to revamp such use case within the 5G ecosystem. In this context, sustained in the architectural designs proposed within H2020 VITAL research project, this paper presents an experimental proof of concept (PoC) of a satellite-terrestrial integration Solution that builds upon software-defined networking (SDN) technologies for the realization of end-to-end traffic Engineering (E2E TE) in mobile backhauling networks with a satellite component. A laboratory test bed has been developed and validated, consisting of a small-scale private mobile network with a backhaul setting that combines Ethernet-wired links, a satellite link emulator (OpenSAND), OpenFlow switches, and an OpenFlow controller running the network application for E2E TE. Provided results show the operation of a E2E TE application able to enforce different traffic routing and path failure restoration policies as well as the performance impact that it has on the mobile network connectivity services.Peer Reviewe
