Jingtao Yang

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Designing systems of asynchronous web services is challenging. Addressing the design in terms of component reuse helps address important questions that need to be answered if dynamic configuration of business solutions from web services is to be achieved. The fact that the components are web services doesn’t mean that all the problems of reuse have been(More)
This paper presents the DFM notation and its operational semantics. DFM (document flow model) is a message-based workflow notation for modelling asynchronous Web services communication, which uses coordination mechanisms to support dynamic configurations and long-running business processes. The operational semantics of a DFM specification describes the(More)
Gas pulsation in the discharge side of rotary compressor is one of the main sources of noise, so the discharge muffler is widely used to decrease the gas pulsation and noise level. Investigations on pressure pulsation in the muffler can provide not only a method to evaluate the muffler design and modification, but also a base for advanced study of noise in(More)
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