893 research outputs found

    A framework for hull form reverse engineering and geometry integration into numerical simulations

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    The thesis presents a ship hull form specific reverse engineering and CAD integration framework. The reverse engineering part proposes three alternative suitable reconstruction approaches namely curves network, direct surface fitting, and triangulated surface reconstruction. The CAD integration part includes surface healing, region identification, and domain preparation strategies which used to adapt the CAD model to downstream application requirements. In general, the developed framework bridges a point cloud and a CAD model obtained from IGES and STL file into downstream applications

    Quality management approach of product data models for shipbuilding

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    A quality management approach to manage the quality of ship product model data is discussed. It aims to improve and to automate product data model control to make the design and production processes more reliable. This approach is supporting an efficient correction of decient structural designs under visual guidance towards the identied problems. Two international standards ISO STEP-59 and ISO/PAS 26183:2006 are utilized in this thesis

    Development of an electrical resistance-based corrosion monitoring system for offshore applications.

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    La imagen de la página 62 está sujeta a confidencialidad por la autora. 124 p.El objetivo principal de la tesis es el desarrollo de un sistema de monitorización remota de la corrosión para estructuras off-shore (eólica y oil & gas). Mediante este sistema se pretende medir en forma remota la velocidad de corrosión de estructuras expuestas a un medio altamente agresivo como el marino, y así conocer en tiempo real el estado de salud de las estructuras en servicio, permitiendo reducir costes de mantenimiento y reparación, etc. Las condiciones de trabajo de las estructuras offshore representan diversos retos científico-tecnológicos: El ambiente corrosivo y los fenómenos combinados de corrosión-fatiga, corrosión bajo tensión, tribocorrosión, los esfuerzos mecánicos debido al viento, olas, bloques de hielo flotante, la fragilización por hidrógeno, el biofouling en la parte sumergida, son algunos de ellos. Si bien se han llevado a cabo múltiples trabajos en el diseño de materiales y componentes offshore con el objetivo principal de incrementar la vida útil de los mismos, las condiciones extremas de trabajo a la que están sometidos estos materiales siguen representando un desafío que necesita de nuevos desarrollos.En la presente tesis se recogen sendos estados del arte relacionados con las diversas estructuras marinas susceptibles de ser monitorizadas por este sistema, los fenómenos de corrosión y como afectan a los materiales de interés, y estrategias sobre la protección frente a la corrosión y la monitorización de la misma. Paralelamente, se hace hincapié en el efecto de las bacterias sulfatoreductoras en la aleación de acero al carbono HSLA de grado R5 escogido en el presente proyecto. Se detalla la caracterización del acero HSLA empleado, su comportamiento frente a la corrosión comparado con otras aleaciones, una caracterización metalográfica completa que avala el uso del presente material en líneas de fondeo.Finalmente, se detalla de manera cronológica el desarrollo del sensor de corrosión basado en la técnica de la resistencia eléctrica, así como la caracterización de fenómenos parásitos asociados a las medidas de baja y ultra-baja resistencia sobre el que se basa el funcionamiento del sensor

    A History of Materials and Technologies Development

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    The purpose of the book is to provide the students with the text that presents an introductory knowledge about the development of materials and technologies and includes the most commonly available information on human development. The idea of the publication has been generated referring to the materials taken from the organic and non-organic evolution of nature. The suggested texts might be found a purposeful tool for the University students proceeding with studying engineering due to the fact that all subjects in this particular field more or less have to cover the history and development of the studied object. It is expected that studying different materials and technologies will help the students with a better understanding of driving forces, positive and negative consequences of technological development, etc

    INTER-ENG 2020

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    These proceedings contain research papers that were accepted for presentation at the 14th International Conference Inter-Eng 2020 ,Interdisciplinarity in Engineering, which was held on 8–9 October 2020, in Târgu Mureș, Romania. It is a leading international professional and scientific forum for engineers and scientists to present research works, contributions, and recent developments, as well as current practices in engineering, which is falling into a tradition of important scientific events occurring at Faculty of Engineering and Information Technology in the George Emil Palade University of Medicine, Pharmacy Science, and Technology of Târgu Mures, Romania. The Inter-Eng conference started from the observation that in the 21st century, the era of high technology, without new approaches in research, we cannot speak of a harmonious society. The theme of the conference, proposing a new approach related to Industry 4.0, was the development of a new generation of smart factories based on the manufacturing and assembly process digitalization, related to advanced manufacturing technology, lean manufacturing, sustainable manufacturing, additive manufacturing, and manufacturing tools and equipment. The conference slogan was “Europe’s future is digital: a broad vision of the Industry 4.0 concept beyond direct manufacturing in the company”

    Digital and Strategic Innovation for Alpine Health Tourism

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    This open access book presents a set of practical tools and collaborative solutions in multi-disciplinary settings to foster the Alpine Space health tourism industry’s innovation and competitiveness. The proposed solutions emerge as the result of the synergy among health, environment, tourism, digital, policy and strategy professionals. The approach underlines the pivotal role of a sustainable and ecomedical use of Alpine natural resources for health tourism destinations, and highlights the need of integrating aspects of natural resources’ healing effects, a shared knowledge of Alpine assets through digital solutions, and frames strategic approaches for the long-term development of the sector. The volume exploits the results of the three-years long EU research project HEALPS 2, which involved several stakeholders from the health tourism, healthcare and sustainable tourism industries. This book is relevant for health tourism destinations and facilities (hotels, clinics, wellness and spa companies), regional and local authorities (policy makers), business support organizations, researchers involved in digital healthcare and geoinformatics

    Digital and Strategic Innovation for Alpine Health Tourism

    Get PDF
    This open access book presents a set of practical tools and collaborative solutions in multi-disciplinary settings to foster the Alpine Space health tourism industry’s innovation and competitiveness. The proposed solutions emerge as the result of the synergy among health, environment, tourism, digital, policy and strategy professionals. The approach underlines the pivotal role of a sustainable and ecomedical use of Alpine natural resources for health tourism destinations, and highlights the need of integrating aspects of natural resources’ healing effects, a shared knowledge of Alpine assets through digital solutions, and frames strategic approaches for the long-term development of the sector. The volume exploits the results of the three-years long EU research project HEALPS 2, which involved several stakeholders from the health tourism, healthcare and sustainable tourism industries. This book is relevant for health tourism destinations and facilities (hotels, clinics, wellness and spa companies), regional and local authorities (policy makers), business support organizations, researchers involved in digital healthcare and geoinformatics

    Consensus guidelines for the use and interpretation of angiogenesis assays

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    The formation of new blood vessels, or angiogenesis, is a complex process that plays important roles in growth and development, tissue and organ regeneration, as well as numerous pathological conditions. Angiogenesis undergoes multiple discrete steps that can be individually evaluated and quantified by a large number of bioassays. These independent assessments hold advantages but also have limitations. This article describes in vivo, ex vivo, and in vitro bioassays that are available for the evaluation of angiogenesis and highlights critical aspects that are relevant for their execution and proper interpretation. As such, this collaborative work is the first edition of consensus guidelines on angiogenesis bioassays to serve for current and future reference
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