Download or read book Synth se et fonctionnalisation de phyllosilicates de type talc written by Karine Joncoux-Chabrol and published by . This book was released on 2010 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'utilisation des revêtements sol-gel pour la protection contre la corrosion des métaux est une alternative aux traitements aux chromates, proscrits du fait de leur forte toxicité. Ces travaux ont porté sur l'incorporation de charges inorganiques fonctionnalisées par des inhibiteurs de corrosion organiques dans des revêtements élaborés par voie sol-gel. Les charges inorganiques choisies sont des phyllosilicates de type talc. La caractérisation de ces matériaux a montré qu'ils possèdent la structure lamellaire du talc naturel mais, contrairement à celui-ci, leur structure et leur grande surface spécifique permet de les fonctionnaliser facilement par greffage covalent d'inhibiteurs de corrosion. La petite taille des particules (environ 300 nm) et leur caractère hydrophile sont aussi des paramètres importants car ils favorisent la dispersion des phyllosilicates de type talc dans les revêtements. L'incorporation des matériaux greffés et non-greffés dans les revêtements déposés sur l'acier au carbone XC35 a permis de renforcer les propriétés barrière et diminuer la corrosion du métal. En revanche, il a été impossible de conclure quant au rôle des inhibiteurs de corrosion greffés du fait de la faible adhésion du revêtement sur le substrat métallique.
Download or read book laboration de nouveaux proc d s de synth se et caract risation de talcs sub microniques written by Angela Dumas and published by . This book was released on 2013 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse s'inscrit dans le processus général d'innovation dans le domaine des matériaux composites. Financée par le projet ANR NANOTALC, elle a permis de réaliser des avancées considérables dans la procédure de production de nouvelles nanocharges minérales de type talc. Le procédé de synthèse du talc a été revisité dans le but de le rendre compatible avec des exigences industrielles en termes de rendement et d'efficacité. Ce procédé supplante les précédents en ce qu'il permet l'obtention d'un produit 100% talc avec un gain de temps et un gain de cristallinité tout en respectant quelques principes de la chimie verte. La caractérisation cristallochimique du nouveau talc synthétique a permis l'obtention de nouvelles signatures spectrales liées aux dimensions submicroniques, qui permettent par ailleurs de comprendre désormais certains comportements énigmatiques de poudres naturelles. Le talc synthétique issu de ce nouveau procédé se distingue de son homologue naturel par sa taille submicronique, sa pureté chimique et minérale mais aussi par son caractère hydrophile, caractère amplifié par l'abondance de bordures latérales porteuses de fonction silanols. Cette thèse retrace aussi les différentes techniques testées pour optimiser ce procédé et propose une nouvelle solution technique pour transposer la synthèse à une échelle semi-industrielle.
Download or read book Digital Atlas of Economic Plants in Archaeology written by Reinder Neef and published by Barkhuis. This book was released on 2012 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third part of the Digital Plant Atlas presents illustrations of subfossil remains of plants with economic value. These plant remains mainly derive from excavations in the Old World (Europe, Western Asia and North Africa) that the Deutsches Archäologisches Institut (DAI, Berlin) and the Groningen Institute of Archaeology (GIA) have conducted or participated in. Plant material is usually very perishable, but can nevertheless be preserved in archaeological sites if the biological decay of the material is blocked. Many plant remains are discovered during excavations in carbonized form, where despite having been in contact with fire, they have not been completely reduced to ash. Extremely dry climatic conditions, like those in Egypt, can also preserve plant material in a completely dessicated condition. Most of the economically valuable plants illustrated here have been carbonized or desiccated. So this atlas links up very well with the Digital Atlas of Economic Plants.Like the other atlasses, this atlas is a combination of a book and a website.The Book: Just as in part two of the series, this part will not only include illustrations of seeds and fruits, but also of other plant parts. The resulting variety in seed and fruit forms will be illustrated by examples from different excavations. To support their identification and determination, also pictures of recent plants and relevant plant parts have been included.The Website: To supplement the photographs, the website will also include morphometric measurements of the subfossil seeds and fruits. These measurements can be compared with own measurements of the plant taxa in question.Summary: Plant families: 56 Plant species (Taxa): 191 Photographs: 773 photographs of subfossil plant parts, 1137 photographs of recent plants and plant parts Languages: English and 15 indices (scientific plant name, pharmaceutical plant name, English, German, French, Dutch, Spanish, Arab, Arab in transliteration, Turkish, Chinese, Pinyin (Chinese in transliteration), Hindi, Sanskrit, and Malayalam) Purchase of the book grants access to the protected parts of the websites of the project.
Download or read book Hasanlu V written by Michael D. Danti and published by University of Pennsylvania Press. This book was released on 2013-07-31 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hasanlu V provides archaeologists with a new, more accurate chronology of Hasanlu, the largest and arguably the most important archaeological site in the Gadar River Valley of northwestern Iran. This revised chronology introduces Hasanlu Periods VIa, V, and IVc for the first time. Based on new findings, the report overturns current constructions of the origins of the archaeological culture in Hasanlu, which sought to link the Monochrome Burnished Ware Horizon (formerly known as the Early Western Grey Ware Horizon) to the migration of new peoples into western Iran in the later second millennium B.C. Hasanlu V shows instead that the Monochrome Burnished Ware Horizon developed gradually from indigenous traditions. This reappraisal has important implications for our understanding of Indo-Iranian migrations into the Zagros region.
Download or read book Great Basin Anthropological Papers written by and published by . This book was released on 1977 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eurasian Prehistory written by Ofer Bar-Yosef and published by . This book was released on 2006-03-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents include: Beeches Pit: Archaeology, assemblage dynamics and early fire history of a Middle Pleistocene site in East Anglia, UK J. A. J. Gowlett, J. Hallos, S. Hounsell, and V. Brant; Middle Pleistocene blade production in the Levant: An Amudian assemblage from Qesem Cave, Israel Ran Barkai, Avi Gopher, and Ron Shimelmitz;
Download or read book Symbols of Excellence written by Grahame Clark and published by Cambridge University Press. This book was released on 1986-04-24 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Professor Clark explores the reasons of why humans value precious metals, gems, ivory and pearls so highly.
Download or read book G ytepe Neolithic Excavations in the Middle Kura Valley Azerbaijan written by Yoshihiro Nishiaki and published by Archaeopress Publishing Ltd. This book was released on 2021-02-11 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume publishes the first round of fieldwork and research (2008-2013) at Göytepe, a key site for understanding the emergence and development of food-producing communities in the South Caucasus. Results include findings relating to chronology, architecture, technology, social organisation, plant and animal exploitation, and more.
Download or read book Nomads in Archaeology written by Roger Cribb and published by Cambridge University Press. This book was released on 2004-07-08 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the problem of how to study mobile peoples using archaeological techniques. It deals not only with the prehistory of nomads but also with current issues in theory and methodology.
Download or read book Physics and Archaeology written by Martin Jim Aitken and published by Hassell Street Press. This book was released on 2021-09-09 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book The Archaeology of the Dead written by Henri Duday and published by Oxbow Books. This book was released on 2009-12-01 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Henri Duday is Director of Research for CNRS at the University of Bordeaux. The Archaeology of the Dead is based on an intensive specialist course in burial archaeology given by Duday in Rome in November 2004. The primary aim of the project was to contribute to the development of common procedures for excavation, data collection and study of Roman cemeteries of the imperial period. Translated into English by Anna Maria Cipriani and John Pearce, this book looks at the way in which the analysis of skeletons can allow us to re-discover the lives of people who came before us and inform us of their view of death. Duday throughly examines the means at our disposal to allow the dead to speak, as well as identifying the pitfalls that may deceive us.
Download or read book Digital Atlas of Economic Plants written by René T. J. Cappers and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This atlas is published as a book plus a database. It presents plants that have an economic value and are offered for sale at markets and in shops. They include plants that are used as food, spices, stimulants, medicines, poisons, offerings, dyes, tannins, building materials, and ground coverings. The atlas contains 3,953 plant species on more than 10,000 high-quality photographs. The Introduction and the Glossary of the book, as well as the database, are in English, German, and Dutch. The book contains fifteen indices in eleven languages, and two extra indices on scientific plant name and pharmaceutical plant name. The database contains an advanced search function. All these characteristics make the book of more than 2,000 pages in three parts with accompanying database an indispensable tool for all kinds of specialists, and an important reference work for others"--From the publisher's description.
Download or read book The Archaeology of Nakhichevan written by Veli Bakhshaliyev and published by Ege Yayinlari. This book was released on 2009 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ceramics in Transitions written by Karen Sydney Rubinson and published by . This book was released on 2008 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented at a workshop held at Barnard College, Columbia University, in December 2003.
Download or read book The Development of Pre State Communities in the Ancient Near East written by Diane Bolger and published by Oxbow Books. This book was released on 2010-04-30 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the dynamics of small-scale societies in the ancient Near East by examining the ways in which particular communities functioned and interacted and by moving beyond the broad neo-evolutionary models of social change which have characterised many earlier approaches. By focusing on issues of diversity, scale, and context, it considers the ways in which economy, crafts, technology, and ritual were organised; the roles played by mortuary practices and households in the structure and development of ancient societies; and the importance of agency, identity, ethnicity, gender, community and cultural interaction for the rise of socio-economic complexity. The contributors to this volume are well-known archaeologists in the field of Near Eastern studies; all are currently engaged in fieldwork or research in Cyprus, the Levant, or Turkey. The variety and depth of the research they present here reflect the richness of the archaeological record in the 'cradle of civilisation' and convey the vibrancy of current interpretive approaches within the field of Near Eastern prehistory today.
Download or read book The Emergence of Pressure Blade Making written by Pierre M. Desrosiers and published by Springer Science & Business Media. This book was released on 2012-03-13 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human development is a long and steady process that began with stone tool making. Because of this skill, humans were able to adapt to climate changes, discover new territories, and invent new technologies. "Pressure knapping" is the common term for one method of creating stone tools, where a larger device or blade specifically made for this purpose is use to press out the stone tool. Pressure knapping was invented in different locations and at different points in time, representing the adoption of the Neolithic way of life in the Old world. Recent research on pressure knapping has led for the first time to a global thesis on this technique. The contributors to this seminal work combine research findings on pressure knapping from different cultures around the globe to develope a cohesive theory. This contributions to this volume represents a significant development to research on pressure knapping, as well as the field of lithic studies in general. This work will be an important reference for anyone studying the Paleolithic, Mesolithic, and Neolithic periods, lithic studies, technologies, and more generally, cultural transmission.
Download or read book The Uruk World System written by Guillermo Algaze and published by . This book was released on 2005 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most archaeologists and historians of the ancient Near East have focused on the internal transformations that led to the emergence of early cities and states. In The Uruk World System, Guillermo Algaze concentrates on the unprecedented and wide-ranging process of external expansion that coincided with the rapid initial crystallization of Mesopotamian civilization. In this extensive study, he contends that the rise of early Sumerian polities cannot be understood without also taking into account the developments in surrounding peripheral areas. This new edition includes a substantial new chapter that explores recent data and interpretations of the expansion of Uruk settlements across Syro-Mesopotamia.
