Purging of untrustworthy recommendations from a grid

In grid computing, trust has massive significance. There is lot of research to propose various models in providing trusted resource sharing mechanisms. The trust is a belief or perception that various researchers have tried to correlate with some computational model. Trust on any entity can be direct or indirect. Direct trust is the impact of either first impression over the entity or acquired during some direct interaction. Indirect trust is the trust may be due to either reputation gained or recommendations received from various recommenders of a particular domain in a grid or any other domain outside that grid or outside that grid itself. Unfortunately, malicious indirect trust leads to the misuse of valuable resources of the grid. This paper proposes the mechanism of identifying and purging the untrustworthy recommendations in the grid environment. Through the obtained results, we show the way of purging of untrustworthy entities.Comment: 8 pages, 4 figures, 1 table published by IJNGN journal; International Journal of Next-Generation Networks (IJNGN) Vol.3, No.4, December 201

3rd EGEE User Forum

We have organized this book in a sequence of chapters, each chapter associated with an application or technical theme introduced by an overview of the contents, and a summary of the main conclusions coming from the Forum for the chapter topic. The first chapter gathers all the plenary session keynote addresses, and following this there is a sequence of chapters covering the application flavoured sessions. These are followed by chapters with the flavour of Computer Science and Grid Technology. The final chapter covers the important number of practical demonstrations and posters exhibited at the Forum. Much of the work presented has a direct link to specific areas of Science, and so we have created a Science Index, presented below. In addition, at the end of this book, we provide a complete list of the institutes and countries involved in the User Forum

Consumer product invention: some developmental, economic & consumer aspects

This study of the British Bicycle and Domestic Radio Receiver industries produced a model of invention/product design having the following features: Invention depended mainly on the combined effect of three factors, each with changing significance over a three-stage life cycle. Technology Factor: Induced a cumulative sequence of inventions to improve product performance, of various origins (ideas, problems, techno-transfers or science). This factor most important in the first Incubation stage, of equal importance in second Early Growth stage and of incremental importance in final Mature stage. Economic Factor: Induced invention to suit market, mainly for cheaper, lower performance products but also for superlative models. This factor inoperative at Incubation stage, very important at Early Growth stage and important at Mature stage. Consumer Factor: Induced invention to make products more appealing to consumer; for simpler/automatic operation, greater reliability, accessories and new uses. This factor inoperative at Incubation stage, important at Early Growth stage and supremely important at Mature stage. Product life-cycle pattern a sequence of new models subsequently improved until an basic satisfactory design achieved, later incrementally improved. Empirical invention often systematic and as important as scientific invention; science often used to define design problem. Peak invention in Early Growth stage to explore all technical possibilities, design trade-offs and for market share. Invention and Demand: No direct and proportional relationship. Initial demand due to novelty appeal of function, subsequent rapid increased demand due to better technical product performance, lower product prices and increased income-related purchasing power. After market saturation demand declined despite better, sometimes radical, designs; as consumers sought other new products

Forest Management, Conflict and Social-Ecological Systems in a Changing World

Conflicts in forest management are unavoidable because of the large temporal and spatial scales characteristic of forests ecosystems and the large number of actors involved. Forests are multifunctional ecosystems par excellence, and it can be hypothesized that current public policies, and especially those labeled as societal transitions, can affect this widespread holistic management goal. In this Special Issue, the different contributions by the authors raise the questions of how different types of conflicts arise and what alternatives exist to solve those conflicts. The Issue contains examples from both temperate and tropical forests and addresses, for instance, conflicts arising from REDD+ programs, the declaration of new protected areas, the complexity of negotiating carbon offset targets, the loss of local knowledge because of demographic trends, and meeting biodiversity and biomass targets simultaneously, among others. We present a general typology of sources of conflicts because of two dimensions: a vertical dimension represented by bottom-up versus top-down approaches and a horizontal dimension arising by ecosystem extent and ownership boundaries. Awareness that new policies can be a source of unexpected conflicts calls for precaution while testing new ‘transition’ approaches

Working with people to improve productivity and quality: A bibliography with indexes, 1984-1988

This bibliography contains 253 anotated references to reports and journal articles entered into the NASA scientific and technical information database 1984 to 1988

Recent Topics in Electromagnetic Compatibility

Recent Topics in Electromagnetic Compatability discusses several topics in electromagnetic compatibility (EMC) and electromagnetic interference (EMI), including measurements, shielding, emission, interference, biomedical devices, and numerical modeling. Over five sections, chapters address the electromagnetic spectrum of corona discharge, life cycle assessment of flexible electromagnetic shields, EMC requirements for implantable medical devices, analysis and design of absorbers for EMC applications, artificial surfaces, and media for EMC and EMI shielding, and much more

Renewable Energy

The demand for secure, affordable and clean energy is a priority call to humanity. Challenges associated with conventional energy resources, such as depletion of fossil fuels, high costs and associated greenhouse gas emissions, have stimulated interests in renewable energy resources. For instance, there have been clear gaps and rushed thoughts about replacing fossil-fuel driven engines with electric vehicles without long-term plans for energy security and recycling approaches. This book aims to provide a clear vision to scientists, industrialists and policy makers on renewable energy resources, predicted challenges and emerging applications. It can be used to help produce new technologies for sustainable, connected and harvested energy. A clear response to economic growth and clean environment demands is also illustrated