Autor: Rodríguez-Rodríguez, I.

Skocz do pozycji: 1.

Tytuł:: Computational approaches to Explainable Artificial Intelligence : advances in theory, applications and trends
Autorzy:: Jimenez-Mesa, C.
Nalepa, Grzegorz
Macas, B.
Martínez-Tomás, R.
Rodríguez-Rodríguez, I.
Marrero-Aguiar, V.
Palma, J.
Varela, R.
Bonomini, P.
Salas-Gonzalez, D.
Barakova, E.
Bologna, G.
Graña, M.
Mekyska, J.
Martinez-Murcia, F.J.
García González, J.
Ortiz, A.
Pinninghoff, M.A.
Silva, M.
Gallego-Molina, N.J.
Wang, S.H.
Zhu, H.
Gómez-Vilda, P.
Simic, D.
Zhu, Z.
Palacios-Alonso, D.
Tsanas, A.
Zhang, Y.D.
Garre, C.
Roelofsma, P.H.M.P.
Atzmueller, M.
Julian, V.
Gamazo, J.
Gómez-Rodellar, A.
Shoeibi, A.
Ballarini, F.
Contreras, R.
Kutt, Krzysztof
Ramírez, J.
Psarrou, A.
Pereira, A.
Rincón, M.
Garcia-Rodriguez, J.
Suckling, J.
Castillo-Barnes, D.
Cuadra, J.M.
Domínguez-Mateos, F.
de Lope, J.
Santos, J.
Guerrero-Rodriguez, B.
Álvarez-Marquina, A.
Wang, W.
Górriz, J.M.
Rodellar-Biarge, V.
Orellana, D.
Fernandez-Jover, E.
Castellanos-Dominguez, G.
Cho, S.B.
Elizondo, D.
Treur, J.
Duro, R.J.
Arco, J.E.
Salcedo-Lagos, P.
Ferrández-Vicente, J.M.
Martinez, J.J.
Hendrikse, S.C.F.
Fernández-Caballero, A.
Álvarez-Illán, I.
Domínguez, E.
Pinacho-Davidson, P.
Garrigós, J.
Jodra-Chuan, M.
Novais, P.
Kotz, G.
Formoso, M.A.
Segovia, F.
Ponticorvo, M.
Leming, M.
Opis:: Deep Learning (DL), a groundbreaking branch of Machine Learning (ML), has emerged as a driving force in both theoretical and applied Artificial Intelligence (AI). DL algorithms, rooted in complex and non-linear artificial neural systems, excel at extracting high-level features from data. DL has demonstrated human-level performance in real-world tasks, including clinical diagnostics, and has unlocked solutions to previously intractable problems in virtual agent design, robotics, genomics, neuroimaging, computer vision, and industrial automation. In this paper, the most relevant advances from the last few years in Artificial Intelligence (AI) and several applications to neuroscience, neuroimaging, computer vision, and robotics are presented, reviewed and discussed. In this way, we summarize the state-of-the-art in AI methods, models and applications within a collection of works presented at the 9th International Conference on the Interplay between Natural and Artificial Computation (IWINAC). The works presented in this paper are excellent examples of new scientific discoveries made in laboratories that have successfully transitioned to real-life applications.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 2.

Tytuł:: Numerical analysis of emissions from marine engines using alternative fuels
Autorzy:: Lamas, M. I.
Rodriguez, C. G.
Telmo, J.
Rodriguez, J. D.
Tematy:: fuel
natural gas
hydrogen
marine engine
emissions; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/260425.pdf Link otwiera się w nowym oknie
Opis:: The current restrictions on emissions from marine engines, particularly sulphur oxides (SOx ), nitrogen oxides (NOx ) and carbon dioxide (CO2 ), are compelling the shipping industry to a change of tendency. In the recent years, many primary and secondary reduction techniques have been proposed and employed in marine engines. Nevertheless, the increasingly restrictive legislation makes it very difficult to continue developing efficient reduction procedures at competitive prices. According to this, the paper presents the possibility to employ alternative fuels. A numerical model was developed to analyze the combustion process and emissions using oil fuel, natural gas and hydrogen. A commercial marine engine was studied, the Wartsila 6L 46. It was found, that hydrogen is the cleanest fuel regarding CO2 , hydrocarbons (HC) and carbon monoxide (CO). Nevertheless, it is very expensive for marine applications. Natural gas is cheaper and cleaner than fuel oil regarding CO2 and CO emissions. Still, natural gas emits more NOx and HC than oil fuel. SOx depends basically on the sulphur content of each particular fuel.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Numerical model of so2 scrubbing with seawater applied to marine engines
Autorzy:: Lamas, M. I.
Rodríguez, C. G.
Rodríguez, J. D.
Telmo, J.
Tematy:: sulphur dioxide
SO2
scrubbers
CFD; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/258856.pdf Link otwiera się w nowym oknie
Opis:: The present paper proposes a CFD model to study sulphur dioxide (SO2) absorption in seawater. The focus is on the treatment of marine diesel engine exhaust gas. Both seawater and distilled water were compared to analyze the effect of seawater alkalinity. The results indicate that seawater is more appropriate than distilled water due to its alkalinity, obtaining almost 100% cleaning efficiency for the conditions analyzed. This SO2 reduction meets the limits of SOx emission control areas (SECA) when operating on heavy fuel oil. These numerical simulations were satisfactory validated with experimental tests. Such data are essential in designing seawater scrubbers and judging the operating cost of seawater scrubbing compared to alternative fuels.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Analysis of the pre-injection system of a marine diesel engine through multiple-criteria decision-making and artificial neural networks
Autorzy:: Rodriguez, C. G.
Lamas, M. I.
Rodriguez, J. D.
Abbas, A.
Tematy:: marine engine
emissions
consumption
artificial neural networks
multi-criteria decision making
computational fluid dynamics; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/2033205.pdf Link otwiera się w nowym oknie
Opis:: The present work proposes several pre-injection patterns to reduce nitrogen oxides in the Wartsila 6L 46 marine engine. A numerical model was carried out to characterise the emissions and consumption of the engine. Several pre-injection quantities, durations, and starting instants were analysed. It was found that oxides of nitrogen can be noticeably reduced but at the expense of increasing consumption as well as other emissions such as carbon monoxide and hydrocarbons. According to this, a multiple-criteria decision-making (MCDM) model was established to select the most appropriate parameters. Besides, an artificial neural network (ANN) was developed to complement the results and analyse a huge quantity of alternatives. This hybrid MCDM-ANN methodology proposed in the present work constitutes a useful tool to design new marine engines.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Numerical model to study the combustion process and emissions in the Wartsila 6L 46 four-stroke marine engine
Autorzy:: Lamas, M. I.
Rodriguez, C. G.
Tematy:: marine engine
emissions
combustion
CFD Computational Fluid Dynamics; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259746.pdf Link otwiera się w nowym oknie
Opis:: The aim of the present paper is to develop a computational fluid dynamics (CFD) analysis to study the combustion process in a four-stroke marine diesel engine, the Wärtsilä 6L 46. The motivation comes from the importance of emissions from marine engines in the global emissions, particularly for nitrogen oxides (NOx) and sulfur oxides (SOx). The pressure and temperature fields were obtained, as well as the exhaust gas composition. In order to validate this work, the numerical results were satisfactory compared with experimental ones, which indicates that this model is accurate enough to reproduce the fluid pattern inside the cylinder during the combustion process. Accordingly, the aim of future works is to use this numerical procedure to optimize the performance and reduce the emissions of the new marine engine designs.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Three-dimensional cfd analysis to study the thrust and efficiency of a biologicallyinspired marine propulsor
Autorzy:: Lamas, M. I.
Rodríguez, J. D.
Rodríguez, C. G.
González, P. B.
Tematy:: fish swimming
marine propulsion
undulating fin
biomimetic
computational fluid dynamics (CFD)
CFD; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259319.pdf Link otwiera się w nowym oknie
Opis:: Aquatic animals, which are the result of many millions of years of evolutionary optimization, are very quick, efficient, robust, and versatile. Accordingly, biologically-inspired mechanisms which emulate the movement of animals have recently become very popular. For the efficient design of a propulsion system it is very important to analyze the fluid flow in detail. CFD (Computational Fluid Dynamics) has become a powerful technique to understand the phenomena because it gives extensive information about the fluid flow characteristics. In the present work, a propulsion system consisting of an undulating fin which emulates the fish swimming was built. In order to optimize the mechanism, several undulating configurations were studied using a 3D turbulent CFD model. The thrust, drag, efficiency and hydrodynamic characteristics were analyzed. Furthermore, it was shown that the efficiency and thrust depend strongly on the oscillation frequency, amplitude and wavelength. In order to validate this CFD model, the numerically obtained thrust was successfully compared with experimental results from the laboratory mechanism.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: 'Chlorophyll ideology' and Protected Areas.The Social Discourses on the Reserve Area 'Tancat de la Pipa' in the Albufera Natural Park (Spain)
Autorzy:: Requena i Mora, Marina
Rodríguez Victoriano, José Manuel
Tematy:: consumption sociology, political ecology, qualitative research, critical discourse analysis; Pokaż więcej
Wydawca:: Fundacja Pro Scientia Publica
Powiązania:: https://bibliotekanauki.pl/articles/628118.pdf Link otwiera się w nowym oknie
Opis:: The human-centric nature of environmental thinking is a highly successful adaptation, which has biological, historical, cultural origins. The dichotomy of anthropocentrism and ecocentrism are what ultimately determine ecological attitudes. This nationally representative study presents how students in Hungarian environmental education bachelor programs view the human’s taxonomic position in the world (hierarchies, kinship), throughout evolution (determining possible directions, distancing from other organisms), the role of human power, and our rights of intervention in the environment. It shows what kind of knowledge students arrive with from public education, how they think about handling confl icts, and what impact their acquired knowledge during university years has on their environmental attitudes. It was found that at least two-thirds of students evaluated natural environmental processes, problemsand their consequences with anthropocentric preferences – in contrast to scientifi cally accepted theses.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Bio-methanization of organic fraction from municipal solid waste: temperature effects
Autorzy:: Fernández-Rodríguez, J.
Pérez, M.
Romero, L. I.
Tematy:: anaerobic digestion
OFMSW
mesophilic
thermophilic
methane; Pokaż więcej
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Powiązania:: https://bibliotekanauki.pl/articles/779264.pdf Link otwiera się w nowym oknie
Opis:: The main objective of this study was to analyse the development of dry anaerobic digestion process of OFMSW in batch reactors under two temperature ranges, thermophilic (55°C) and mesophilic (35°C). The experimental results lead to the conclusion that the thermophilic range has a greater rate of hydrolysis and is therefore more effective to degrade wastes, shortening the overall operating time. For example, the hydrolytic step in the thermophilic (T) process lasted an average of 8 days versus 14 days in the mesophilic (M) range. The methanogenic phase lasted for 18 and 29 days in the T and M processes, respectively. The mesophilic range showed higher removal of the organic effluent but with greater uptime requirements. Moreover, the thermophilic range showed greater productivities than the mesophilic range, and the productivities were approximately doubled in terms of the produced biogas from a given amount of consumed organic matter.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Numerical model to study the valve overlap period in the Wärtsilä 6L 46 four-stroke marine engine
Autorzy:: Lamas, M. I.
Rodríguez, C. G.
Rebollido, J. M.
Tematy:: four-stroke engine
computational fluid dynamics (CFD)
marine engine; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259055.pdf Link otwiera się w nowym oknie
Opis:: In this paper, a CFD (Computational Fluid Dynamics) analysis was carried out to study the Wärtsilä 6L 46 medium-speed, four-stroke marine engine. For the purpose, the commercial software ANSYS Fluent 6.3 was employed. The aim is to analyze the scavenging of gases, especially during the valve overlap period. Particularly, the pressure, velocity and mass fraction fields were numerically obtained. In order to validate the CFD results, the in-cylinder pressure was successfully compared to experimental measurements for the exhaust, intake and compression strokes of the cylinder operation. This model can be used in future works to improve the performance of these engines because the information provided is very useful to identify regions in which the pressure, velocity or distribution of gases are inadequate. Besides, to compute the quantity of burnt gases which remain inside the cylinder, fresh charge which is expelled through the exhaust valves and study the influence of parameters such as the exhaust and intake pressures, engine speed, cam profile design, etc.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Influence of meteorological parameters in hourly patterns of grass [Poaceae] pollen concentrations
Autorzy:: Munoz, Rodriguez A F
Silva Palacios, I.
Tormo Molina, R.
Tematy:: Poaceae
grass
pollen
pollen concentration
meteorological parameter
pollination
pollen allergy
hourly pattern; Pokaż więcej
Wydawca:: Instytut Medycyny Wsi
Powiązania:: https://bibliotekanauki.pl/articles/50296.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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