SDN/NFV-enabled satellite communications networks: opportunities, scenarios and challenges

In the context of next generation 5G networks, the satellite industry is clearly committed to revisit and revamp the role of satellite communications. As major drivers in the evolution of (terrestrial) fixed and mobile networks, Software Defined Networking (SDN) and Network Function Virtualisation (NFV) technologies are also being positioned as central technology enablers towards improved and more flexible integration of satellite and terrestrial segments, providing satellite network further service innovation and business agility by advanced network resources management techniques. Through the analysis of scenarios and use cases, this paper provides a description of the benefits that SDN/NFV technologies can bring into satellite communications towards 5G. Three scenarios are presented and analysed to delineate different potential improvement areas pursued through the introduction of SDN/NFV technologies in the satellite ground segment domain. Within each scenario, a number of use cases are developed to gain further insight into specific capabilities and to identify the technical challenges stemming from them.Peer ReviewedPostprint (author's final draft

Public technology: challenging the commodification of knowledge

Discusses the role of technology in commodifying teaching, that is making it a marketable commodity, and describes a number of examples of how academic staff around the world are using open technologies to make teaching and learning both accessible to a wider public, and to involve the wider public in student learning

Numerical study of circle fractal grid perforated plate as a turbulent generator in combustion chamber

Fractal grids can be used to design turbulent flows with low power losses and high turbulence intensities for intense yet economic mixing over a region of designed length and location. The introducing circle grid perforated plate is the main aim of this present paper. In this numerical work, we want to ascertain a new approach in turbulence generators on the structure of premixes flames using perforated plate fractal-grids pattern. In this paper, we compared circle grid perforated plate by varies using its diameters, spacing and number of holes on the plate. The result showed good perceptivity of the fractal generated turbulence and the fractal flow physics. The turbulent intensity can be increased by a grid with higher blockage ratio

The Organization of New Service Development in the USA and UK

We understand a great deal about the organization and management of new product development in the manufacturing sector, but we know relatively little about how applicable this research and practice is to the service sector. In this paper we introduce and test a framework for managing new product development in services. This framework is derived and tested by analyzing 108 service firms in a combined US and UK dataset, and then each national sub-sample separately. Our results generally support the predictive capability of the framework, and suggest that the development strategy, processes, organization and tools derived from manufacturing, specially those of concurrent engineering, are applicable to services. However, the framework better fits the US than UK data, which may question the notion of a 'best practice' applicable to different contexts.product development, services, concurrent engineering, simultaneous development

BUSINESS INTELLIGENT AGENTS FOR ENTERPRISE APPLICATION

Fierce competition in a market increasingly crowded and frequent changes in consumer requirements are the main forces that will cause companies to change their current organization and management. One solution is to move to open architectures and virtual type, which requires addressing business methods and technologies using distributed multi-agent systems. Intelligent agents are one of the most important areas of artificial intelligence that deals with the development of hardware and software systems able to reason, learn to recognize natural language, speak, make decisions, to recognize objects in the working environment etc. Thus in this paper, we presented some aspects of smart business, intelligent agents, intelligent systems, intelligent systems models, and I especially emphasized their role in managing business processes, which have become highly complex systems that are in a permanent change to meet the requirements of timely decision making. The purpose of this paper is to prove that there is no business without using the integration Business Process Management, Web Services and intelligent agents.business intelligence, intelligent agents, intelligent systems, management, enterprise, web services

The Virtual University and Avatar Technology: E-learning Through Future Technology

E-learning gains increasingly importance in academic education. Beyond present distance learning technologies a new opportunity emerges by the use of advanced avatar technology. Virtual robots acting in an environment of a virtual campus offer opportunities of advanced learning experiences. Human Machine Interaction (HMI) and Artificial Intelligence (AI) can bridge time zones and ease professional constraints of mature students. Undergraduate students may use such technology to build up topics of their studies beyond taught lectures. Objectives of the paper are to research the options, extent and limitations of avatar technology for academic studies in under- and postgraduate courses and to discuss students' potential acceptance or rejection of interaction with AI. The research method is a case study based on Sir Tony Dyson's avatar technology iBot2000. Sir Tony is a worldwide acknowledged robot specialist, creator of Star Wars' R2D2, who developed in recent years the iBot2000 technology, intelligent avatars adaptable to different environments with the availability to speak up to eight different languages and capable to provide logic answers to questions asked. This technology underwent many prototypes with the latest specific goal to offer blended E-learning entering the field of the virtual 3-D university extending Web2.0 to Web3.0 (Dyson. 2009). Sir Tony included his vast experiences gained in his personal (teaching) work with children for which he received his knighthood. The data was mainly collected through interviews with Sir Tony Dyson, which helps discover the inventor’s view on why such technology is of advantage for academic studies. Based on interviews with Sir Tony, this research critically analyses the options, richness and restrictions, which avatar (iBot2000) technology may add to academic studies. The conclusion will discuss the opportunities, which avatar technology may be able to bring to learning and teaching activities, and the foreseeable limitations – the amount of resources required and the complexity to build a fully integrated virtual 3-D campus. Key Words: virtual learning, avatar technology, iBot2000, virtual universit

Managing intellectual capital : individual rights and the public interest

Managing intellectual capital and intellectual property is a challenging task, especially for knowledge-based organisations vested with a public interest. Scientific ethics and freedom of information may clash with copyright law or with other intellectual property enactments, thereby engendering conflicts of interest. International law and treaties make for a complex regulatory framework. World-wide advocacy of the open access principle has led to some statutory changes, but its proponents mostly assume that copyright owners will act voluntarily. The implications for knowledge management are elucidated

Globalization and the Flattening of the World: A Book Review of “The World is Flat”

There is no doubt the world is changing. In cultures, in politics, and in economies, increased awareness of foreign and domestic practices has become a focal point of society. Trade has always proven beneficial to a nation due to the laws of absolute and comparative advantage, but in the modern world, international relations go beyond the boundaries of exchanging products. Now, services and collaboration are added to that realm. In his book “The World is Flat,” Thomas Friedman pinpoints the history and future of globalization in economics. Highlighting how globalization has made the world “flat” by allowing fair competition between large and small companies, corporations and individuals, and countries and continents, Friedman gives insight into how the world has changed because of innovation and history colliding at the right time