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- Li, Shuo, 1983-
(författare)
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System-Level Architectural Hardware Synthesis for Digital Signal Processing Sub-Systems
- 2015
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This thesis presents a novel system-level synthesis framework called System-Level Architectural Synthesis Framework (SYLVA), which synthesizes DigitalSignal Processing (DSP) sub-systems modeled by synchronous data ?ow intohardware implementations in Application-Specific Integrated Circuit (ASIC),Field-Programmable Gate Array (FPGA) or Coarse-Grained ReconfigurableArchitecture (CGRA) style. SYLVA synthesizes in terms of pre-characterizedFunction Implementations (FIMPs). It explores the design space in threedimensions, number of FIMPs, type of FIMPs, and pipeline parallelism be-tween the producing and consuming FIMPs. SYLVA also introduces timingand interface model of FIMPs to enable reuse and automatic generation ofGlobal Interconnect and Control (GLIC) to glue the FIMPs together into aworking system. SYLVA has been evaluated by applying it to several realand synthetic DSP applications and the experimental results are analyzedfor the design space exploration, the GLIC synthesis, the code generation,and the CGRA floorplanning features. The conclusion from the experimentalresults is that by exploring the multi-dimensional design space in terms ofpre-characterized FIMPs, SYLVA explores a richer design space and does itmore effectively compared to the existing High-Level Synthesis (HLS) toolsto improve both engineering and computational efficiency.
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- Zou, Zhi, 1989-, et al.
(författare)
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Comparative study on the performance of a two-cell system of Flow Electrode Capacitive Mixing (F-CapMix) for continuous energy production
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Capacitive mixing (CapMix), one of the most recent techniques that extract salinity gradient energy from the salt difference between seawater and freshwater, has attracted more attention in recent years. However, one big challenge that remains to solve in the traditional CapMix is to produce energy in a continuous way instead of an intermittent way. Here we achieve effective continuous energy production by using a two-cell flow electrode CapMix (F-CapMix) system. The performance of the F-CapMix is investigated under different experimental parameters that influence the power production of the system. Results show that the two-cell F-CapMix system is capable of continuously producing energy for long-term operation. Generally, the power density is dependent on the activated carbon loading, amounts of carbon black, feedwater flow rate, flow electrode flow rate, and the connected external resistance. Increasing the carbon loading and carbon black amounts is beneficial for improving power production. A slower flow rate of flow electrode and feedwater could improve the system’s performance. The external resistance should be matched to the internal resistance of the cell to achieve maximum power production. These results indicate the potential of F-CapMix and provide directions for its further optimizatio
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