À la fin du XVe siècle, le vieil Anthonius s'éteint, entouré des siens, laissant en héritage à son fils la vision du paradis qu'il a eue quelques jours plus tôt. Cette anecdote est le prologue à une grande épopée qui nous mènera des Lumières au monde d'aujourd'hui. Pierre Le Franc nous raconte l'évolution de la science en suivant le travail et la vie de femmes et d'hommes qui ont pratiqué une nouvelle façon de penser. Cette grande aventure humaine et scientifique progresse au rythme des idées, des inventions, des découvertes, des joies, des passions et des drames pour aboutir au développement de la stimulation électrique du coeur. Au fil du récit, l'auteur nous plonge dans une réflexion sur les mouvements de la pensée et de la connaissance pour nous aider à mieux comprendre les origines du monde dans lequel nous vivons.
This book treats cavitation, which is a unique phenomenon in the field of hyd- dynamics, although it can occur in any hydraulic machinery such as pumps, propellers, artificial hearts, and so forth. Cavitation is generated not only in water, but also in any kind of fluid, such as liquid hydrogen. The generation of cavitation can cause severe damage in hydraulic machinery. Therefore, the prevention of cavitation is an important concern for designers of hydraulic machinery. On the contrary, there is great potential to utilize cavitation in various important applications, such as environmental protection. There have been several books published on cavitation, including one by the same authors. This book differs from those previous ones, in that it is both more physical and more theoretical. Any theoretical explanation of the cavitation phenomenon is rather difficult, but the authors have succeeded in explaining it very well, and a reader can follow the equations easily. It is an advantage in reading this book to have some understanding of the physics of cavitation. Therefore, this book is not an introductory text, but a book for more advanced study. However, this does not mean that this book is too difficult for a beginner, because it explains the cavitation phenomenon using many figures. Therefore, even a beginner on cavitation can read and can understand what cavitation is. If the student studies through this book (with patience), he or she can become an expert on the physics of cavitation.
This book provides a comprehensive treatment of the cavitation erosion phenomenon and state-of-the-art research in the field. It is divided into two parts. Part 1 consists of seven chapters, offering a wide range of computational and experimental approaches to cavitation erosion. It includes a general introduction to cavitation and cavitation erosion a detailed description of facilities and measurement techniques commonly used in cavitation erosion studies, an extensive presentation of various stages of cavitation damage (including incubation and mass loss) and insights into the contribution of computational methods to the analysis of both fluid and material behavior. The proposed approach is based on a detailed description of impact loads generated by collapsing cavitation bubbles and a physical analysis of the material response to these loads. Part 2 is devoted to a selection of nine papers presented at the International Workshop on Advanced Experimental and Numerical Techniques for Cavitation Erosion Prediction (Grenoble, France, 1-2 March 2011) representing the forefront of research on cavitation erosion. Innovative numerical and experimental investigations illustrate the most advanced breakthroughs in cavitation erosion research.
Comment les romans et les récits modernes et contemporains figurent-ils la voix? Comment, d'un point de vue critique, « imaginer » les voix écrite, spéculative, narrative, théâtrale ou hors champ? Le numéro examine ces deux questions à partir desquelles se croisent et se répondent des réflexions sur la littérature, les médias, les technologies, le ton, le corps.
At the end of the 15th century, the old Anthonius passed away, surrounded by his family, passing the vision of paradise he had a few days earlier as a birthright to his son. This legacy served as the prologue to a great epic which will lead us from the Enlightenment to the world of today. Pierre Le Franc tells us about the evolution of science by following the work and lives of women and men who practiced a new way of thinking. This great human and scientific adventure is brought to life through the rhythm of ideas, inventions, discoveries, joys, passions and dramas that lead to the development of electrical stimulation of the heart. Throughout the story, the author immerses us in a reflection on the progression of thought and knowledge to help us better understand the origins of the world in which we live.
