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Comparison of algorithms using deep reinforcement learning for optimization of hyperbolic metamaterials
Published 2024-12-01Get full text
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Les eaux comme frontières dans les Enfers gréco-romains, d’après L’Odyssée d’Homère, la Théogonie d’Hésiode, La République de Platon et L’Énéide de Virgile
Published 2022-12-01“…They represent a geographical border which, in Hesiod’s vertical organization of the world, marks the limit between the earthly surface of the living and the underworld of the dead: thus, in the Odyssey, the confluence of the two rivers, at the edge of the Ocean, marks the entrance to the Underworld for Ulysses, whereas it is the lake Avernus for Aeneas, in Virgil’s Aeneid; or the Styx and its marshes that the dead cross in Charon’s boat. …”
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A não-reciprocidade dos programas de cooperação para o desenvolvimento: uma análise bibliométrica
Published 2019-09-01“…As Edgar Morin said in 1995: « La connaissance est une navigation dans un océan d’incertitudes à travers des archipels de certitudes »”. …”
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A sea ice deformation and rotation rate dataset (2017–2023) from the Environment and Climate Change Canada automated sea ice tracking system (ECCC-ASITS)
Published 2025-02-01“…<p>Sea ice forms a thin but horizontally extensive boundary between the ocean and the atmosphere and has complex, crust-like dynamics characterized by intermittent sea ice deformations. …”
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Extracellular matrix re-normalization to improve cold tumor penetration by oncolytic viruses
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1471
Ice-proximal sea ice reconstruction in the Powell Basin, Antarctica, since the Last Interglacial
Published 2025-01-01“…These biomarkers have been established as reliable proxies for reconstructing near-coastal sea ice conditions in the Southern Ocean (SO), where the typical use of sea-ice-related diatoms can be impacted by silica dissolution. …”
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Évaluer ex ante la pertinence de projets locaux d’adaptation au changement climatique
Published 2012-11-01“…Based upon fieldwork conducted in Mauritius and Rodrigues islands (Indian Ocean), this paper presents a methodology for ex ante assessment of adaptation to climate change projects. …”
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Lying flat to play on smartphone excessively: the role of self-esteem
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Impact of cloud cover on local remote sensing – Piaśnica River case study
Published 2022-11-01“…The rate was lower (92%) for the Sentinel-3/OLCI (Ocean and Land Colour Instrument). It was eventually concluded that, at the local level, successful observations can be conducted using the cloud cover map supplied with the satellite data. …”
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Estimation of wireless channel fading model in maritime communication for complex meteorological environment
Published 2022-03-01“…Due to the influence of complex marine environmental factors such as sparse scattering of electromagnetic wave on the ocean surface, wave shadow fading, complex meteorological environment.It is extremely hard to model the fading of wireless channel in maritime communication environment.After analyzing the influence of meteorological environment and multipath channel fading via direct-path, specular-path and diffuse-path on marine wireless communication channel fading, the estimation of wireless channel fading model in maritime communication for complex meteorological environment (EWCFM-CME) was proposed.An improved bee colony algorithm was designed to estimation the parameter of EWCFM-CME.In order to improve the efficiency and accuracy of search algorithm, an iterative function with sin(·) function as operator was designed in search scheme of bee colonies.The leading bee received the detection bee solution to update itself with probability P.It prevents the solution algorithm from falling into local optimization.The simulation results show that, compared with fluctuate two-ray (FTR) fading model and round earth loss (REL) model, the mean absolute error (MAE) of EWCFM-CME increased by 13.58% and 11.43% By comparing EWCFM-CME with cuckoo search, genetic algorithm and simulated annealing algorithm, the search time is reduced by 60.48%, 45.18% and 43.23%, respectively.…”
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Technological progress bias and its impact on resource efficiency in China’s mariculture industry
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Fitz-Hugh-Curtis syndrome: a case study of a frequently missed diagnosis
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Exploring Marine Cyanobacteria for Lead Compounds of Pharmaceutical Importance
Published 2012-01-01“…The Ocean, which is called the “mother of origin of life,” is also the source of structurally unique natural products that are mainly accumulated in living organisms. …”
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