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Using optical technology for the design of packet switches/routers offers several advantages such as scalability, high bandwidth, power consumption, and cost. However, reconfiguring the optical fabric of these switches requires significant time under current technology (microelectromechanical system mirrors, tunable elements, bubble switches, etc.). As a(More)
A Clos-network architecture is an attractive alternative for constructing scalable packet switches because of its distributed and modular design. It can be classified according to different buffer (memory) allocation schemes in its switching stages. The most studied architectures are the Space-Space-Space (S) and the Memory-Space-Memory (MSM) architectures.(More)
Alzheimer's disease (AD) is the most common type of dementia. Mild cognitive impairment (MCI) is considered as a transition stage between normal aging and dementia. In this study, 3D texture analysis was performed on magnetic resonance images (MRI) of 12 early AD patients, 12 MCI patients and 12 normal controls. Texture features of the hippocampus were(More)
In order to reconstruct the system for identification of short antigenic peptides, the chicken BF2 gene of Chinese Sanhuang (SH) chicken line was linked to the beta(2)m gene via (G4S)3, a linker encoding a 15-amino acid glycine-rich peptide, by splicing overlap extension PCR (SOE-PCR). The MBP-BF2-(G4S)3-beta(2)m fusion protein was expressed and purified in(More)
Twenty-four BF2 genes and 10 beta(2)m genes from Chinese Sanhuang (SH), Wuji (WJ), and Zhenzhu (ZZ) chicken lines were cloned, and the amino acid replacement rates of the BF2 polypeptide binding domain were investigated. For this purpose, 13 BF2 genes from the SH-chicken line (BF2*01sh-BF2*13sh), six BF2 genes from the WJ-chicken line (BF2*01wj-BF2*06wj),(More)
We consider traffic scheduling in an <i>N</i> &#215; <i>N</i> packet switch with an optical switch fabric, where the fabric requires a reconfiguration overhead to change its switch configurations. To provide 100% throughput with bounded packet delay, a speedup in the switch fabric is necessary to compensate for both the reconfiguration overhead and the(More)
Using optical technology brings with it advantages such as scalability, high bandwidth and power consumption for the design of switches/routers. However, reconfiguring the optical fabric of these switches requires significant time under current technology. Conventional slot-by-slot scheduling may severely cripple the performance of these switches due to its(More)
Multiple platform coherent location systems operate by computing the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) among signals received at geographically separated platforms. The bandwidth of the data link is the major bottleneck in the processing. Previously developed data compression methods [1, 2] can not satisfy the(More)
Hybrid switch architecture with electronic buffering/processing and optical switching fabric is receiving a lot of attention as potential candidate for the design of highperformance and scalable switches/routers. However, the reconfiguration overhead of optical fabrics brings new challenges to system and scheduling algorithm design. For example, speedup is(More)