Chemical engineering practice. Volume 6, fluid systems 2 (Cremer, Herbert W.; Davies, Trefor)

Editorial note Volume 6 Issue 2

The Late Mr. John W. Davies

editorial note volume 6 issue 2

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Abstracts Volume 6 Number 2

The urgent need to increase productivity and competitiveness demands from sporting craft builders the incorporation of newer design and manufacturing technologies, as CAD/CAM and CNC machining systems. This paper describes the sporting boats’ 3D surface modelling, needed for automated manufacturing processes, throug terrestrial laser scanner technology. The methodology followed for data collect...

Systems engineering of data services in UMTS W-CDMA systems

In this paper we address issues concerning technology selection for non-real time, near real time and interactive data services for 3G W-CDMA systems. Specifically, we compare the packet mode of operation with the circuit mode of operation in UMTS W-CDMA. We show that the use of packet channels such as the Common Packet Channel (CPCH) and Forward Access Channel (FACH) lead to an order of magnit...