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3篇 您的检索式:作者名="RobertYoung"
    题名 作者 年代 出处 被引量
1NOVEL STRUCTURE FOR DISTRIBUTED NUMERICAL CONTROL显示文摘Because of an unexpected signal noise within the network or an unpredicted fault with personal computers (PCs), many problems emerge in the implementation of distributed numerical control (DNC) with PCs-based network. To solve the problems, an industrial solution of involving the field-bus technology in DNC communicating area is provided. A kind of advanced Field-bus, named controller area network (CAN), is originally developed to support cheap and rather simple automotive applications. However, because of its good performance and low cost, it is also being considered in automatedmanufacturing and process control environments to interconnect intelligent devices, such as modern sensors and actuators. Recently it creates a new role for CANBus in DNC that brings new thinking to DNC. CAN is used as the network platform for connecting machine tools to share information with each other reliably. Additionally, thanks to also applying of 'plug-in' technology and a special interface of hardware, this solution exhibits some high compatibility with different pedigree numerical control (NC) systems, such as Fanuc, Siemens, Cincinnati and so on. In order to improve CANBus for DNC application, a communicating competition model of the basic CAN protocol, called CC model, is then highlighted. This model is able to satisfy the requirements that different machine tools share the communicating bandwidth fairly when they run concurrently. Finally the novel view of the latest advancement in CANBus-based DNC in combination with the manufacturing paradigm is also presented.WangShilong JianYi LiuFei RobertYoung 2003Chinese Journal of Mechanical Engineering2003,16,4:3
2房地产不怕泡沫怕不确定性显示文摘现在很多人说房地产市场低迷,实际上,任何国家房地产市场都有周期性,现在,中国房地产只是在经历了之前十年的快速上涨之后慢了下来,开发商不必过度紧张。在我看来,房地产是一种不动产,泡沫是有区域性的,可能有些地方不跌,有些地方会跌得很厉害。不过,房地产最怕的不是泡沫,而是不确定性。在中国,房地产是“政策市”,有时候政府的调控会严重干预到国内房地产市场的走向。但只有市场经济与政策调控有效融合,中国未来房地产市场才能良性发展。RobertYoung 2012浙商2012,,18:0
3设计显示文摘The globalisation of communication and the market economy has created a complex world of increased competition and expectation.RobertYoung 2004设计2004,20,9:0
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