1,720,991 research outputs found

    Durabilité des Procédés et de la Chaîne Alimentaire : Compréhension des phénomènes impliqués et amélioration par approches numériques et expérimentales

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    This dissertation presents my scientific contributions in the field of food process engineering, with a particular emphasis on the sustainability and innovation of food transformation and preservation processes, a major challenge of the 21st century. Faced with current environmental and economic challenges, it is essential to develop more efficient technologies that minimize ecological impact while ensuring food safety and quality. My work aligns with this perspective by combining numerical and experimental approaches to optimize food transformation and preservation processes. My research field is structured around three main axes: I) Sustainable baking processes by baked-off technology, II) Thermal storage using phase change materials and its impact on food quality, and III) Applications of electric and electromagnetic fields in food processes. Finally, this dissertation highlights future research perspectives, notably the development of eco-efficient processes, the use of artificial intelligence for food process optimization, and the study of the influence of static electric fields on emulsion stabilization. My work as a whole aims to provide concrete solutions to the challenges of the agri-food transition, reconciling industrial performance and environmental sustainability.Ce mémoire présente mes contributions scientifiques dans le domaine du génie des procédés alimentaires, avec un accent particulier sur la durabilité et l’innovation des procédés de transformation et de conservation des aliments, un enjeu majeur du XXIe siècle. Face aux défis environnementaux et économiques actuels, il est essentiel de développer des technologies plus efficaces, minimisant l’impact écologique tout en garantissant la sécurité et la qualité des aliments. Mon travail s'inscrit dans cette perspective en combinant approches numériques et expérimentales pour optimiser les procédés de transformation et de conservation des aliments. Mon parcours de recherche s’articule autour de trois axes principaux : I) Optimisation des procédés de panification durable, II) Stockage thermique par matériaux à changement de phase et impact sur la qualité alimentaire, et III) Applications des champs électriques et électromagnétiques dans les procédés alimentaires. Enfin, ce mémoire met en avant les perspectives de recherche futures, notamment le développement de procédés éco-efficients, l’utilisation de l’intelligence artificielle pour l’optimisation des procédés alimentaires et l’étude de l’influence des champs électriques statiques sur la stabilisation des émulsions. L’ensemble de mes travaux vise à apporter des solutions concrètes aux défis de la transition agroalimentaire, en conciliant performance industrielle et durabilité environnementale

    Durabilité des Procédés et de la Chaîne Alimentaire : Compréhension des phénomènes impliqués et amélioration par approches numériques et expérimentales

    No full text
    This dissertation presents my scientific contributions in the field of food process engineering, with a particular emphasis on the sustainability and innovation of food transformation and preservation processes, a major challenge of the 21st century. Faced with current environmental and economic challenges, it is essential to develop more efficient technologies that minimize ecological impact while ensuring food safety and quality. My work aligns with this perspective by combining numerical and experimental approaches to optimize food transformation and preservation processes. My research field is structured around three main axes: I) Sustainable baking processes by baked-off technology, II) Thermal storage using phase change materials and its impact on food quality, and III) Applications of electric and electromagnetic fields in food processes. Finally, this dissertation highlights future research perspectives, notably the development of eco-efficient processes, the use of artificial intelligence for food process optimization, and the study of the influence of static electric fields on emulsion stabilization. My work as a whole aims to provide concrete solutions to the challenges of the agri-food transition, reconciling industrial performance and environmental sustainability.Ce mémoire présente mes contributions scientifiques dans le domaine du génie des procédés alimentaires, avec un accent particulier sur la durabilité et l’innovation des procédés de transformation et de conservation des aliments, un enjeu majeur du XXIe siècle. Face aux défis environnementaux et économiques actuels, il est essentiel de développer des technologies plus efficaces, minimisant l’impact écologique tout en garantissant la sécurité et la qualité des aliments. Mon travail s'inscrit dans cette perspective en combinant approches numériques et expérimentales pour optimiser les procédés de transformation et de conservation des aliments. Mon parcours de recherche s’articule autour de trois axes principaux : I) Optimisation des procédés de panification durable, II) Stockage thermique par matériaux à changement de phase et impact sur la qualité alimentaire, et III) Applications des champs électriques et électromagnétiques dans les procédés alimentaires. Enfin, ce mémoire met en avant les perspectives de recherche futures, notamment le développement de procédés éco-efficients, l’utilisation de l’intelligence artificielle pour l’optimisation des procédés alimentaires et l’étude de l’influence des champs électriques statiques sur la stabilisation des émulsions. L’ensemble de mes travaux vise à apporter des solutions concrètes aux défis de la transition agroalimentaire, en conciliant performance industrielle et durabilité environnementale

    Durabilité des Procédés et de la Chaîne Alimentaire : Compréhension des phénomènes impliqués et amélioration par approches numériques et expérimentales

    No full text
    This dissertation presents my scientific contributions in the field of food process engineering, with a particular emphasis on the sustainability and innovation of food transformation and preservation processes, a major challenge of the 21st century. Faced with current environmental and economic challenges, it is essential to develop more efficient technologies that minimize ecological impact while ensuring food safety and quality. My work aligns with this perspective by combining numerical and experimental approaches to optimize food transformation and preservation processes. My research field is structured around three main axes: I) Sustainable baking processes by baked-off technology, II) Thermal storage using phase change materials and its impact on food quality, and III) Applications of electric and electromagnetic fields in food processes. Finally, this dissertation highlights future research perspectives, notably the development of eco-efficient processes, the use of artificial intelligence for food process optimization, and the study of the influence of static electric fields on emulsion stabilization. My work as a whole aims to provide concrete solutions to the challenges of the agri-food transition, reconciling industrial performance and environmental sustainability.Ce mémoire présente mes contributions scientifiques dans le domaine du génie des procédés alimentaires, avec un accent particulier sur la durabilité et l’innovation des procédés de transformation et de conservation des aliments, un enjeu majeur du XXIe siècle. Face aux défis environnementaux et économiques actuels, il est essentiel de développer des technologies plus efficaces, minimisant l’impact écologique tout en garantissant la sécurité et la qualité des aliments. Mon travail s'inscrit dans cette perspective en combinant approches numériques et expérimentales pour optimiser les procédés de transformation et de conservation des aliments. Mon parcours de recherche s’articule autour de trois axes principaux : I) Optimisation des procédés de panification durable, II) Stockage thermique par matériaux à changement de phase et impact sur la qualité alimentaire, et III) Applications des champs électriques et électromagnétiques dans les procédés alimentaires. Enfin, ce mémoire met en avant les perspectives de recherche futures, notamment le développement de procédés éco-efficients, l’utilisation de l’intelligence artificielle pour l’optimisation des procédés alimentaires et l’étude de l’influence des champs électriques statiques sur la stabilisation des émulsions. L’ensemble de mes travaux vise à apporter des solutions concrètes aux défis de la transition agroalimentaire, en conciliant performance industrielle et durabilité environnementale

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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