The Chameleon Architecture for Streaming DSP Applications

We focus on architectures for streaming DSP applications such as wireless baseband processing and image processing. We aim at a single generic architecture that is capable of dealing with different DSP applications. This architecture has to be energy efficient and fault tolerant. We introduce a heterogeneous tiled architecture and present the details of a domain-specific reconfigurable tile processor called Montium. This reconfigurable processor has a small footprint (1.8 mm$^2$ in a 130 nm process), is power efficient and exploits the locality of reference principle. Reconfiguring the device is very fast, for example, loading the coefficients for a 200 tap FIR filter is done within 80 clock cycles. The tiles on the tiled architecture are connected to a Network-on-Chip (NoC) via a network interface (NI). Two NoCs have been developed: a packet-switched and a circuit-switched version. Both provide two types of services: guaranteed throughput (GT) and best effort (BE). For both NoCs estimates of power consumption are presented. The NI synchronizes data transfers, configures and starts/stops the tile processor. For dynamically mapping applications onto the tiled architecture, we introduce a run-time mapping tool

The dirty man of Europe? Rubbish, recycling and consumption work in England

England has been described as 'the dirty man of Europe'. However, the country's household recycling rate has been steadily increasing in the last decade, achieving a recycling rate of 42 per cent in 2011/12 compared to just 12 per cent in 2001/2 (DEFRA, 2012). This paper explores the combination of factors that have led to the growth of interest and participation in recycling activities by households, businesses, governments and the third sector. It charts the development of waste management policy and practice in England in order highlight how and why recycling has become incorporated into consumer?s everyday household routines. This paper has been developed as part of an ERC-funded project, 'Consumption Work and Societal Divisions of Labour', whose key aim is to demonstrate the role that consumers play in the labour process, using comparative methods. In the case of recycling, by sorting their waste, consumers play an integral role in the division of labour within waste management in England and their role differs substantially to the role of consumers in Sweden (the other country in which recycling consumption work has been explored, see Wheeler, 2013). This paper illustrates how the consumer is encouraged to perform this work, drawing attention to what the work actually comprises and the implications of its successful accomplishment for the labour processes that follow

Russia's gas sector: the endless wait for reform?

The gas industry is perhaps Russia’s least reformed major sector. Prices are regulated, exports are monopolised and the domestic market is dominated by a state-controlled, vertically integrated monopolist, OAO Gazprom. Gazprom combines commercial and regulatory functions, and maintains tight control over the sector’s infrastructure and over information flows within it. The sector as it is currently constituted is highly unlikely to be able to sustain sufficient output growth to satisfy both rising export commitments and domestic demand. There is significant potential for accelerating the growth of non-Gazprom production and making gas supply in Russia more competitive, but this will require fundamental reform. The proposals for reform advanced in the paper address two sets of issues. First, there is an urgent need to increase transparency in the sector and transfer many of the regulatory functions now performed by Gazprom to state bodies. Secondly, there is a longer-term need for a considerable degree of unbundling of Gazprom. In particular, it would be desirable to remove control of the sector’s transport infrastructure from the company and to revise the arrangements governing gas exports to non-CIS states, which are currently monopolised by Gazprom. At the same time, recent increases in domestic gas tariffs must continue until internal gas prices rise above full, long-term cost-recovery levels

Assessment of industrial applications for fuel cell cogeneration systems

The fuel cell energy systems are designed with and without a utility connection for emergency back-up power. Sale of electricity to the utility during periods of low plant demand is not considered. For each of the three industrial applications, conceptual designs were also developed for conventional utility systems relying on purchased electric power and fossil-fired boilers for steam/hot water. The capital investment for each energy system is estimated. Annual operating costs are also determined for each system. These cost estimates are converted to levelized annual costs by applying appropriate economic factors. The breakeven electricity price that would make fuel cell systems competitive with the conventional systems is plotted as a function of naphtha price. The sensitivity of the breakeven point to capital investment and coal price is also evaluated