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Accidents at intersections happen when drivers perform inappropriate manoeuvres. Advanced sensor systems will enable the development of Advanced Driver Assistance Systems (ADAS) which can assess the potential for a collision at a junction. Accurate localisation of the driver’s vehicle and path prediction of other road users can be fused with traffic signal status and other information. The ADAS system...
The mean and RMS axial velocity field in the central sagittal plane of an idealized representation of the human extrathoracic airway (ETA) during steady inspiration was studied experimentally using single and X-hot-wire anemometry (HWA). Complementary flow-visualization results illustrate the complex nature of this flow, which includes several regions of separated, secondary, and recirculating flow...
Zirconyl chloride upon hydrolysis in water to form Zr(OH)+ has been found to react to form a fluorescent derivative with not only a ketose such as fructose but also a hexose such as glucose and the disaccharide sucrose. When reaction conditions such as a temperature of 99°C and a time of 60 min are used, detection limits below 1 μg/mL are possible. All three zirconyl–sugar derivatives show very similar...
Many processes such as catalytic reactors have parameters which vary with time. The controllers used on these processes therefore need periodic retuning or adaptive tuning. One method of retuning is to pulse test the process as often as needed. But the traditional method of analyzing pulse test data is tedious, time consuming and requires an experienced person. With the algorithm discussed in this...
PDF (Pseudo-Derivative-Feedback) control offers certain advantages over PID (Proportional-Integral-Derivative) control. In this paper these advantages are analyzed by comparison. The major drawback to the use of PDF control has been the lack of a method of tuning. A simple method of tuning PDF control has been discovered during this analysis.
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