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Turbocharged diesel engines are extensively used in marine vessels, both as propulsion engines and as generator sets. The engine’s operation in the hostile marine environment results in performance degradation having a negative effect on the economics of the marine vessel’s operation both in terms of fuel consumption and maintenance. This paper presents a turbocharged four-stroke diesel engine simulation framework based on one-dimensional calculations and analysis. The framework is suitable for turbomachinery and heat exchanger components fault simulation predicting both turbocharger and diesel engine performance and operability. Mean-line models were used in conjunction with the beta lines method for generating accurate and detailed compressor and turbine performance maps, coupled with a single zone closed-cycle diesel engine model for generating engine performance characteristics. The simulation framework modules are adjusted and validated against measured data. Following specific faults are simulated utilizing physical consistent parameters such as blade friction and thickness based on relevant literature data. Overall system simulation and operation analysis is carried out assessing operability and performance parameters. Analysis results show a significant reduction in engine performance, especially in case of both turbo components being fouled (22% power reduction), in contrast with the heat exchanger fouling where the power reduction is about 1%.

International audience; Perhaps because Shakespeare’s homeland was surrounded by the ocean, water is a constant source of inspiration in his plays. In Early-modern times, sea lanes represented voyages, escapes, explorations and conquests. They were a means to protect oneself from the enemy and a source of pride (remember Elizabeth’s victory over the Invincible Armada). In the poet’s canon, the sea conveys a vast palette of images and emotions such as dilemmas, loss, love, battles, success and fate. It also provides the script with a rhythmic pattern possibly reflecting the ebb and flow of waves on the shores.The sea can be on- and off-stage ; it is a structuring device often used for characterization ; it can also embody human qualities – like ambition and force – and, last but not least, it is the emblem of Shakespeare’s unfathomable imagination. In his final romance, The Tempest, which is central in this volume, the sea becomes a climactic symbol of regeneration : it “permeates the essence of the play […], and leaves the characters and audience convinced that ‘though the seas threaten, they are merciful,’” to quote Tony Jason Stafford in Shakespeare’s Use of the Sea, 1996 (3-4). In this play, the sea translates the author’s mature art and his elaborate vision of a world that has changed and which the theatrical space can hardly encompass. And yet, what Shakespeare’s company did and the stage-directors still try to do today was to represent this kaleidoscopic and metamorphic entity, resorting to another boundless tool : the art of performance.Original sketch by Baptiste Arnaud

La investigación propone como tema un centro de interpretación del mar en el Callao con un programa que se enfoque en la difusión de la conciencia medioambiental marítima, como también del contexto en el que es emplazado, apoyado de la educación interactiva. Se buscaría; además, que el equipamiento en su proyección genere una conexión entre la ciudad barrial y el borde marítimo, al igual que darle un tratamiento que mejore la zona del malecón y sirva este como un referente transformador para las futuras intervenciones en la zona costera.

The paper represents the report of the Mission Oceans and seas.. Board, ufficially appointed by the European Commission. The blue growth and blue economy contexts in Europe are deeply analyzed and 5 objectives plus 17 targets for future actions are proposed. The report has been officialy presented to the European Commission in September 2020

El presente trabajo se proyecta sobre la política marítima integrada diseñada por la Unión Europea, con miras a cotejarla desde los criterios de la sostenibilidad que la propia Unión se ha impuesto y contrastar su eficacia y utilidad para la consecución de unos objetivos de calidad medioambiental de los mares y océanos que a día de hoy se formulan con carácter imperioso y urgente. This paper addresses the integrated maritime policy designed by the European Union to compare it against the criteria of sustainability that the Union has self-imposed. The aim is to test its effectiveness and usefulness in achieving the imperative environmental quality objectives of the seas and oceans.

Invited presentation discussing the advantages and challenges of application of mass spectrometry-based metabolomics approaches in studying the global changes of seas and oceans due to antropic and environmental factors. Augmented Observatories 1 Workshop in the frame of the G7 Action , Stazione Zoologica Anthon Dorn, Napoli, 14-15 June 2017

Comentarios acerca de lo expresado por el Presidente Sebastián Piñera, sobre el ofrecimiento a Bolivia de una salida no soberana al océano Pacífico por Arica. El mandatario del vecino país fue más allá pues sostuvo que de obtener una sentencia adversa en Holanda esta proposición quedaría sin efecto.