A Reflexive Extension to Arachne's Aspect Language

International audienceAspect weaving at run time has proven to be an effective way of implementing software evolution. Nevertheless, it is often hard to achieve adequate modularization and reusability in face of run time and implementation issues. Arachne is an AO system that features a run time aspect weaver for C applications, and a language close to the C syntax. In this paper we present a reflexive extension of Arachne's aspect language. We show through extracts of a deadlock detection aspect, how this extension improves the modularization of crosscutting concerns and the reusability of aspects

The Electronic Silk Road: How the Web Binds the World in Commerce

On the ancient Silk Road, treasure-laden caravans made their arduous way through deserts and mountain passes, establishing trade between Asia and the civilizations of Europe and the Mediterranean. Today’s electronic Silk Roads ferry information across continents, enabling individuals and corporations anywhere to provide or receive services without obtaining a visa. But the legal infrastructure for such trade is yet rudimentary and uncertain. If an event in cyberspace occurs at once everywhere and nowhere, what law applies? How can consumers be protected when engaging with companies across the world? In this accessible book, cyber-law expert Anupam Chander provides the first thorough discussion of the law that relates to global Internet commerce. Addressing up-to-the-minute examples, such as Google’s struggles with China, the Pirate Bay’s skirmishes with Hollywood, and the outsourcing of services to India, the author insightfully analyzes the difficulties of regulating Internet trade. Chander then lays out a framework for future policies, showing how countries can dismantle barriers while still protecting consumer interests

PV System Design and Performance

Photovoltaic solar energy technology (PV) has been developing rapidly in the past decades, leading to a multi-billion-dollar global market. It is of paramount importance that PV systems function properly, which requires the generation of expected energy both for small-scale systems that consist of a few solar modules and for very large-scale systems containing millions of modules. This book increases the understanding of the issues relevant to PV system design and correlated performance; moreover, it contains research from scholars across the globe in the fields of data analysis and data mapping for the optimal performance of PV systems, faults analysis, various causes for energy loss, and design and integration issues. The chapters in this book demonstrate the importance of designing and properly monitoring photovoltaic systems in the field in order to ensure continued good performance

Ein Beitrag zur Pixel-basierten Verteilten Videocodierung: Seiteninformationsgenerierung, WZ-Codierung und flexible Decodierung

Moderne Anwendungsszenarien, wie die individuelle Übertragung von Videodaten zwischen mobilen Endgeräten, stellen neue Herausforderungen an das Videoübertragungssystem. Hierbei liegt ein besonderer Fokus auf der geringen Komplexität des Videoencoders. Diese Anforderung kann mit Hilfe der Verteilten Videocodierung erfüllt werden. Im Fokus der vorliegenden Arbeit liegen die sehr geringe Encoderkomplexität sowie auch die Steigerung der Leistungsfähigkeit und die Verbesserung der Flexibilität des Decodierungsprozesses. Einer der wesentlichen Beiträge der Arbeit bezieht sich auf die Verbesserung der Seiteninformationsqualität durch temporale Interpolation