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Fracture toughness, hysteresis and stretchability of dielectric elastomers under equibiaxial and biaxial loading
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Facial asymmetry classification in neurological disorders: Integrating computer vision and machine learning for improved patient care
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Capteurs inductifs et reconstruction de forme pour les robots médicaux souples et flexibles
No full textLes robots souples et flexibles transforment les interventions médicales, grâce à leur flexibilité, leur miniaturisation et leurs capacités de mouvement multidirectionnel. Cependant, les méthodes de reconstruction de forme existantes n'ont pas suffisamment pris en compte les défis posés par les robots souples et flexibles dans les environnements non structurés et dynamiques. Dans cette thèse, un capteur extensible basé sur le principe inductif électrique est proposé comme solution à ce problème. Le capteur peut détecter de grandes déformations avec une grande précision et une grande précision et est intégré dans un robot souple et flexible pour un contrôle en boucle fermée. La thèse se concentre sur la reconstruction de la forme du robot dans des scénarios de chirurgie mini-invasive dans les espaces de travail 2D et 3D. Enfin, la thèse conclut en présentant le potentiel du capteur inductif pour la reconstruction de la forme de robots souples et flexibles et les travaux futurs pour surmonter les limitations.Soft and flexible robots are transforming medical interventions, thanks to their flexibility, miniaturization, and multidirectional movement abilities. However, existing shape reconstruction methods have not adequately addressed the challenges posed by these robots in unstructured and dynamic environments. In this thesis, a stretchable sensor based on the electrical inductive principle is proposed as a solution to this problem. The thesis presents a simple voltage measurement method for strain estimation, which optimizes the measuring equipment and simplifies the measurement conditions. The sensor's feasibility and accuracy are demonstrated in an experimental investigation that shows the sensor can detect large deformations with high precision and accuracy. The sensor is then integrated into a soft and flexible robot for closed-loop control, and the thesis focuses on reconstructing the robot's shape in minimally invasive surgery scenarios in both 2D and 3D workspaces. Finally, the thesis concludes with an overview of the inductive sensor's potential for shape reconstruction of soft and flexible robots and future work to address the limitations
Capteurs inductifs et reconstruction de forme pour les robots médicaux souples et flexibles
No full textSoft and flexible robots are transforming medical interventions, thanks to their flexibility, miniaturization, and multidirectional movement abilities. However, existing shape reconstruction methods have not adequately addressed the challenges posed by these robots in unstructured and dynamic environments. In this thesis, a stretchable sensor based on the electrical inductive principle is proposed as a solution to this problem. The thesis presents a simple voltage measurement method for strain estimation, which optimizes the measuring equipment and simplifies the measurement conditions. The sensor's feasibility and accuracy are demonstrated in an experimental investigation that shows the sensor can detect large deformations with high precision and accuracy. The sensor is then integrated into a soft and flexible robot for closed-loop control, and the thesis focuses on reconstructing the robot's shape in minimally invasive surgery scenarios in both 2D and 3D workspaces. Finally, the thesis concludes with an overview of the inductive sensor's potential for shape reconstruction of soft and flexible robots and future work to address the limitations.Les robots souples et flexibles transforment les interventions médicales, grâce à leur flexibilité, leur miniaturisation et leurs capacités de mouvement multidirectionnel. Cependant, les méthodes de reconstruction de forme existantes n'ont pas suffisamment pris en compte les défis posés par les robots souples et flexibles dans les environnements non structurés et dynamiques. Dans cette thèse, un capteur extensible basé sur le principe inductif électrique est proposé comme solution à ce problème. Le capteur peut détecter de grandes déformations avec une grande précision et une grande précision et est intégré dans un robot souple et flexible pour un contrôle en boucle fermée. La thèse se concentre sur la reconstruction de la forme du robot dans des scénarios de chirurgie mini-invasive dans les espaces de travail 2D et 3D. Enfin, la thèse conclut en présentant le potentiel du capteur inductif pour la reconstruction de la forme de robots souples et flexibles et les travaux futurs pour surmonter les limitations
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
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