Download or read book Etanch it des connectiques implant pilier written by Sarah Takadoum (dentiste).) and published by . This book was released on 2018 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les implants dentaires représentent un traitement de l'édentement remarquable et en plein essor. La connexion entre implant et pilier s'effectue autour d'une zone fragile : l'espace biologique. On recherche donc une connectique la plus passive possible et cela implique notamment une étanchéité maximale. Cette thèse a pour objet dans un premier temps le rappel des critères influençant l'étanchéité, ainsi que les différents types de connectiques existantes et les tests disponibles pour objectiver l'étanchéité. Notre étude porte par la suite sur la comparaison de l'étanchéité de 8 connectiques implant-pilier différentes grâce à une méthode de diffusion gazeuse à l'azote. Les résultats obtenus ne montrent pas de différence significative au niveau de l'étanchéité entre les différents systèmes testés. On retrouve dans la littérature des études corroborant nos résultats mais également des travaux allant à l'encontre. La suite de ce travail consistera en la percussion des connectiques afin de simuler des cycles masticatoires puis à la réévaluation de l'étanchéité implant-pilier.

Download or read book Dictionary of Civil Engineering written by Jean-Paul Kurtz and published by Springer Science & Business Media. This book was released on 2004-09-14 with total page 1520 pages. Available in PDF, EPUB and Kindle. Book excerpt: I am pleased to present a work which marks a milestone in the history of public works and, more precisely, in that of permanent structures—a comprehensive dictionary of Civil Engineering terms. Since the beginning of time, Man has always tried to find a means to clear the obstacles which nature erected to displace him. With the first tree trunk thrown across a river, man sought to improve the crossing structure. After the invention of the wheel, and to satisfy his thirst for conquest (Roman ways), and comfort (aqueducts), man built bridges that became a preremptory necessity to move quickly. Thus, Man started to build wooden and masonry works. With the passing centuries, the builders became masters in the art of building masonry works. Then came the Industrial Revolution and the advent of the steel (1864), which was closely followed by the invention of the reinforced concrete (1855). The need for railways and improving the road network inspired great works of crossing such as viaducts and tunnels. The boom of the railway network and the development of the car required the construction of an increasing number of new structures. This phenomenon continues today with hundreds of structures built each year throughout the world.

Download or read book Historical Dictionary of Iran written by John Henry Lorentz and published by Historical Dictionaries of Asia, Oceania, and the Middle East. This book was released on 2007 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an overview of specific events, movements, people, political and social groups, places, trends, and chronology. Allows for considerable exploration of a number of historical and contemporary topics and issues. The modern period, defined as 1800-present, is covered extensively.

Download or read book Historical Dictionary of Pakistan written by Shahid Javed Burki and published by . This book was released on 1999 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pakistan is unlike most other countries in the emerging world. It is one of the two nations – the other being the state of Israel – founded on the basis of religion. Although it was created to provide a homeland for the Muslim community of British India, in its original form it was able to accommodate only about half of the people of Islamic faith who lived in the subcontinent. Pakistan’s birth in 1947 resulted in one of the largest movements of people in human history when some 14 million people left their homes, with 8 million Muslims leaving India for what is now Pakistan and 6 million Hindus and Sikhs moving in the opposite direction. This was the first large-scale incidence of ethnic cleansing the world was to witness. --