In this paper, we study the performance benefits of turbo coded HSDPA system. This paper provide an overview of high speed data packet access (HSDPA) and focus on the business values that such a highly-efficient access technology would bring to wireless operators, including higher capacity and newer services. In this paper each frame is encoded using a turbo code and channel coding is done by t...

This research proposes the combination of a dual-loop non-organic Rankine cycle (DNORC) with an internal combustion engine to increase the output power of the recovery system by focusing on the increase in the energy input and system efficiency. In doing so, it investigates the strategy of increasing the mean effective temperature of heat addition in the high-temperature Rankine cycle (HTRC) (t...

Cooled exhaust gas recirculation is emerging as a promising technology to address the increasing demand for fuel economy without compromising performance in turbocharged spark injection engines. The objectives of this study are to quantify the increase in knock resistance and to decrease the enrichment and emission at high load. For this purpose four stroke turbo charged Spark Ignition engine (...

Recent warm, dry summers showed the vulnerability of the European power sector to low water availability and high river temperatures. Climate change is likely to impact electricity supply, in terms of both water availability for hydropower generation and cooling water usage for thermoelectric power production. Here, we show the impacts of climate change and changes in water availability and wat...

Cooling tower is an important part of power plant. The efficiency of power plant is directly depends on the effectiveness of cooling tower. In cooling tower scheduled maintenance and shutdown maintenance is a problem which affects its effectiveness and performance of cooling tower. In cooling tower shutdown maintenance required in every 2 to 3 year periods at this period the whole plant will be...

Enterprise Power and Cooling: A Chip-to-Data Center Perspective Norm Jouppi, Hewlett Packard Background Cooling: A Chip-Core to Cooling-Tower Perspective Power: From Chips to Data Centers Chandrakant Patel and Parthasarathy Ranganathan, HP Labs Power and cooling are increasingly becoming key challenges in enterprise environments, impacting infrastructure, electricity, and maintenance costs, as ...

Turbo decoding techniques achieve near-optimal performance in terms of Bit Error Rate (BER) at low Signal to Noise Ratios (SNR's). Amongst these techniques, convolutional turbo codes and product turbo codes are nowadays the most common ones. They have already been selected as a standard for the Universal Mobile Telecommunication System (UMTS) [Lit. 4]. In the future, they will probably also be ...

gmelinoides fasciatus (stebbing, 1899) is a baikal endemic amphipod that has recently become widespread in eurasia. this species accidentally entered the cooling reservoir of the belovo power plant and became successfully naturalised there. this study describes the peculiarities of g. fasciatus distribution in reservoir sites with different thermal regimes and analyses the environmental factors...

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We use hydrodynamical simulations to assess the impact of radiative cooling and “preheating” on predictions for the Sunyaev-Zeldovich (SZ) effect. Cooling significantly reduces both the mean SZ signal and its angular power spectrum, while preheating can increase the mean distortion while leaving the angular power spectrum below that found in a simulation without heating or cooling. We study the...