Search results for ""Author Lyons""

This is a richly illustrated volume that demonstrates Sicily's essential role in the development of the ancient Mediterranean world. Ancient Sicily, a prosperous island at the crossroads of the Mediterranean, occupied a pivotal place in the region. In the late 8th Century B.C., emigres from the Greek mainland founded colonies along the shores of the region now known as Sicily. Over time, the area grew wealthy from its agricultural abundance, and colonial settlements emerged as formidable metropolises. Sicily is the only English-language book that focuses on the watershed period between 480 B.C. and the Roman conquest of Syracuse in 212 B.C. - a time of great social and political ferment. Essays investigate Sicily not simply as a destination for adventurers and settlers, but as a catalyst that shaped Greek culture at its peak and transmitted Hellenism to Rome. In the opulent courts of the Sicilian city-states, artists, poets, and scientist attained levels of ingenuity rivaling those of "old Greece." Innovation in architecture, engineering, philosophy and literature flourished in mixed cultural communities.

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This book is a collection of invited papers (previously published in special issues of the Journal of Adhesion Science and Technology) written by internationally recognized researchers actively working in the field of plasma surface modification. It provides a current, comprehensive overview of the plasma treatment of polymers. In contrast to plasma polymerization, plasma surface modification reactions do not cause thin-film deposition, and can therefore only modify the surface properties of organic substrates. Plasma surface modifications are fast, efficient methods for improving the adhesion properties and other surface characteristics of a variety of polymeric materials. The focus of this volume is on adhesion phenomena, surface properties and the surface characterization of plasma-treated materials. This book opens with a critical review of the plasma surface modification of polymers for improved adhesion. The remainder of the papers are divided into two sections, one dealing with the characterization of plasma-treated surfaces and the second concerned with various practical applications of plasma-treated surfaces

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At the launch of Operation Barbarossa, Army Group North was tasked with the operational objective of Leningrad—what lay between it and the city was 800 kilometers of the Baltic states, and 18-20 infantry divisions, two cavalry divisions, and eight or nine mechanised brigades of the Red Army. It was apparent that in order to succeed they would have to race through to the western Dvina and establish a bridgehead before the Russians exploited this natural feature to organise a defensive front. Panzer Group 4, which included LVI Panzer Corps and XLI Panzer Corps, was to lead the way. By the end of the first day the group had pushed 70 kilometers into enemy territory. Red counterattacks on their unprotected flanks slowed them down, resulting in the tank battle of Raseiniai, but the group managed to capture Dünaburg on the Western Dvina on June 26, with a bridgehead established shortly thereafter. The group then pushed northeast through Latvia to the Stalin Line. In mid-July Hoepner was preparing to push the last 100 kilometers to Leningrad, however Leeb, commander of the army group, had other plans for the group and the advance did not continue for several more weeks.This account of Panzer Group 4's advance was written by Walter Chales de Beaulieu, chief of staff of Panzer Group 4. Published in German in 1961, this is the first English translation. Beaulieu not only gives a detailed account of the Panzer Group's advance, but also offers an assessment of the fighting, an examination of how Panzer Group 4's operations were affected by the limitations imposed on Army Group North, and the lessons that can be learnt from its experiences in the Baltic States. He concludes with a discussion of whether Leningrad could ever have been taken.

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