introduction: job stress is one of the main characteristics of modern life which is increasing and has been recognized as an important risk factor of cardiovascular diseases. the present study was conducted to determine the association between job stress at work environment and cardiovascular diseases. materials and methods: a number of 300 persons including 150 cases and 150 controls were cons...

guidance and control of aircraft in the landing phase imposes extra pilot work loads, hence application of automatic landing control systems is of great importance. in this study automatic landing control systems are introduced and an optimal landing control system is designed. the control system performance criteria are based on minimum control effort. the designed system is simulated for a tr...

Congestion control of Internet Best Effort traffic relies mostly on TCP window flow control of individual sessions. This paper argues that such approach does not scale well to a very large number of simultaneously active flows, typical of backbones characterized by large delay-bandwidth products. In this scenario, the TCP window sizes tend to be small and dropping or marking packets alone is no...

The growing demand of computer usage requires efficient ways of managing network traffic in order to avoid or at least limit the level of congestion in cases where increases in bandwidth are not desirable or possible. Using non-linear control theory we developed and analysed a generic Integrated Dynamic Congestion Control (IDCC) scheme for controlling traffic using information on the status of ...

in this paper, the enhancement of vehicle stability and handling is investigated by control of the active geometry suspension system (ags). this system could be changed through control of suspension mounting point’s position in the perpendicular direction to wishbone therefore the dynamic is alternative and characteristics need to change. for this purpose, suitable controller needs to change mo...