Songjie Xu

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—In order to maximize performance and device utilization , the recent generation of field programmable gate arrays (FPGAs) take advantage of speed and density benefits resulting from heterogeneous FPGAs, which can be classified into heterogeneous FPGAs without bounded resources or heterogeneous FPGAs with bounded resources. In this paper, we study the(More)
In order to maximize performance and device utilization, recent generation of FPGAs take advantage of speed and density beneets resulted from heterogeneous FPGAs, which provide either an array of homogeneous programmable logic blocks PLBs, each conngured to implement circuits with LUTs of diierent sizes, or an array o f p h ysically heterogeneous LUTs. Some(More)
In this paper we study the technology mapping problem for FPGAs with nonuniform pin delays and fast interconnections. We develop the PinMap algorithm to compute the delay optimal mapping solution for FPGAs with nonuniform pin delays in polynomial time based on the eecient cut enumeration. Compared with FlowMap 5] without considering the nonuniform pin(More)
OBJECTIVE To investigate the effect on intramuscular connective tissue and passive range of joint motion by the stress produced in limb lengthening. METHODS An animal model of limb lengthening was established in the tibia of rabbits. Distraction was initiated at a rate of 1 mm/d and 2 mm/d in two steps respectively, and both proceeded until 10% and 20% of(More)
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