1,354,407 research outputs found

    Formalizzazione e computazione della conoscenza mediante editor di ontologie - Formalizing and computing knowledge by means of ontology editing.

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    The efficiency of a shared design among multiple designers depends on how much the actor’s semantics of the used terms are interpreted correctly by all the other actors involved in the design process without any misunderstanding. The chosen way to find an answer to these questions is the development of a Collaborative Architectural Design system based on Knowledge formalized by Ontologies

    Knowledge Bases - Strutturare il sapere. Ontology based design for collaborative environments.

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    The development of professional skills in Design Construction shows increasingly divergent directions. In every field of knowledge, experts communicate by high level abstractions with particular drawings and documents, according to their disciplinary field. This research study is based upon a different definition of Collaboration: "The ability to discuss at the same level on a given topic". The main purpose is to create a collaborative working environment using external tools known to the actors involved, the terminology and jargon that they usually use. The chosen way to find an answer to all these questions is that expressed in the subtitle of this work: the development of a prototype that can improve collaboration between different specialists referring to the Ontology Based Design

    Ab Initio Models of Functionalized Gold Nanoparticles and Self-Assembled Monolayers on Gold Surfaces for Various Applications

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    International audienceDesigning functionalized gold nanoparticles and surfaces at the atomic scale remains a tremendous challenge, although such a requirement may be necessary for various applications in biomedicine, biosensors, optics, transistors, catalysis etc. From the experimental standpoint, significant efforts have been made over the years to acquire knowledge on the relationships between the morphology of gold nanoparticles and their chemical environment, or between self-assembled monolayers and the targeted properties. However, it remains necessary to better understand what direct and indirect physical phenomena are at stake, when gold nanoparticles and surfaces are interacting with their nearby chemical environment. Theoretical modeling at a sufficient level of accuracy may be an interesting approach to progress on these questions. In this presentation, several examples showing the impact of the environment on the morphology of gold nanoparticles will be exposed thanks to close collaborations with experimentalists and theoreticians [1-3]. In particular, the influence of the hydration, the PEGylation, the high pressure of hydrogen on gold structures will be evoked on the basis of density functional theory calculations and ab initio molecular dynamics simulations.References[1] C.-H. Chan, F. Poignant, M. Beuve, E. Dumont, D. Loffreda (i) Effect of the Ligand Binding Strength on the Morphology of Functionalized Gold Nanoparticles. J. Phys. Chem. Lett. 11 (2020) 2717-2723 (ii) A Water Solvation Shell Can Transform Gold Metastable Nanoparticles in the Fluxional Regime. J. Phys. Chem. Lett. 10 (2019) 1092-1098.[2] A. Nassereddine, Q. Wang, D. Loffreda, C. Ricolleau, D. Alloyeau, C. Louis, L. Delannoy, J. Nelayah, H. Guesmi, Revealing Size Dependent Structural Transitions in Supported Gold Nanoparticles in Hydrogen at Atmospheric Pressure. Small (2021), p.2104571.[3] L. Bossard-Giannesini, L. Cardenas, H. Cruguel, A. Demessence , D. Loffreda, O. Pluchery, How Far the Chemistry of Self-Assembled Monolayers on Gold Surfaces Affects Their Work Function? Nanoscale 15 (2023) 17113-17123

    Formalizing and Computing Ontologies to Speed up the Construction of Knowledge-based Collaborative Systems: Three Different Approaches

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    Architectural design is a purpose-oriented collective process defined in time, split up into phases, carried out directly or indirectly by numerous professional profiles and characterized by the co-presence of numerous disciplines and specialist skills. The efficiency of a shared design among multiple designers depends on how much the actoris semantics of the used terms are interpreted correctly by all the other actors involved in the design process without misunderstandings. The chosen way to find an answer to these questions is the development of a Collaborative Architectural Design system based on Knowledge formalized by Ontologies. An ontology has been implemented using three different approaches to define an entity based on Lisp, Protégé and Altova

    Participative Technologies: an Internet-based Environment to Access a Plural Design Experience: Knowledge Modeling to Support User\u27s Requirements Formalization

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    “Re-shaping artificially the Earth on human needs” implies a very complex industrial system that is performed through a very complex process. It consists of a collective, finalized and plural-constrained process, scheduled by phases, made up by several actors, characterized by the co-presence of numerous and very different (non-) specialist skills. In this paper we define the enhancement path of a web-based collaborative environment - discussed in a previous work - laying upon actual design entities representation an innovative logical level for knowledge formalization. It is presented an example of end-users requirement formalization, aimed at supporting the designers in the process by means of rule-based project suggestions

    Knowledge collaboration design. Theory techniques and applications for collaboration in architecture

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    The purpose of this book is to illustrate the result of a many-year-long research effort. We have sought to separate the description of the theoretical part from that of its application. The result is a work organized in five parts, corresponding to the content we indicated above: the first part deals with the design collaboration, its characteristics, and the relationship with the design’s quality; the second part examines the characteristics of design knowledge, the principal domains in which it is expressed, and its properties; the third part looks into the theoretical and implementative characteristics of the BKM model; the fourth part defines the characteristics of the ABCD platform and its modes of implementation; the fifth part illustrates the function of a reduced-scale prototype of the ABCD platform and its application to a case study; lastly, the conclusions discuss the future developments of the research’s outcome

    building knowledge management to support collaborative design

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    The present work shows an innovative Project Management Platform to support Collaborative Building Design, developed by the authors and partially implemented, aiming at creating a supporting instrument for Project Management Agencies. Referring to the industrial potential of this research, it aims at producing new software instruments for building management which will significantly reduce timing and costs in design process control, by reducing misunderstandings and conflicts among all the actors involved at any design phase. The interdisciplinary and dynamic nature of Architectural and Building Design clearly reveals the limits of conventional design in coping with the rapid changes taking place in this context in which many operators of this sector act. The authors propose a new Project Management Platform that can assist and support designers “in a collaborative fashion” supplying additional knowledge ‘on the fly' in order to enhance the entire design process and to reduce misunderstandings and code infringements by means of efficient, “intelligent” and designer-friendly support systems. The “fundamental bases of collaboration reside on knowledge and on the way it is communicated among the actors”. The authors propose an Overall Building Design Structure and a compact but powerful and flexible Knowledge Representation Model aimed at creating an innovative Project Management tool which allows mutual understanding among actors on shared design solutions. The system is based on a combination of Knowledge Representation based on Ontology representations and Design Process Management through Knowledge Scanning/Filtering systems. By means of the proposed platform Project Management Agencies can better control the exchanging protocols among actors involved, ensuring that any of them will receive shared concepts by others that he/she is able to understand and to work on efficiently. A partial implementation of the platform already exist and the ongoing research is focusing on a prototype implementation of the overall system and on final building users modeling, to test, even in preliminary design phases, the building response to final designed use

    Unfolding the design of architecture as a strategy to assess intellectual property Bridle pirating architecture

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    Modeling tools are evolving the process of architectural design from the use ordinary digital tool into a role of creator of complex shapes, through coding configurations. These procedures are becoming the structural ground of the architectural shape, going beyond their sole tools role. The increasing in importance of such codes implies a major level of awareness for their use, which is worth of a deeper analysis. The system of relations among parts in an architectural design picks a single configuration among infinite others, because it is produced by a design process which find its fulfillment in the final portray. Through the spreading of digital design tools, such final configuration becomes a step in a clearly reproducible process. The project is achieved through a series of starting conditions, which undergo a parametric process, that produces the final result. An identical parametric process can be applied under slightly different starting conditions and produce completely different results. These results are connected with the code which produced them, but is the authorship still property of the original author
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