Xiang-Dong He

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This paper presents the design of a model-based nonlinear observer of an evaporator (a two-phase flow heat exchanger) for advanced dynamic control of air conditioning and refrigeration systems. A control-oriented, low-order model is derived for the evaporator. Based on sensor measurements of the evaporating temperature, the nonlinear observer can be used to(More)
For the stream-like applications with high-bandwidth and low latency, optimizing the memory latency can effectively improve the QoS. In this paper, we propose a dedicated adaptive loop pre-fetch mechanism to reduce the memory latency and also improve the pre-fetch accuracy. In the mechanism, when a loop sequences is detected, the stream pre-fetch engine can(More)
Classification is a data exploration and learning mechanism, which has been widely studied and a wide range of applications subject. Supervised Classification is based on association rules and if we increase number of association rule degree of accuracy of classification is also being increase but larger number of rule take longer time to classify. Recently(More)
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