- Presently, all vehicles have a two-wheel steering system irrespective of the vehicle being front wheel driven, rear wheel driven or all-wheel driven. A four-wheel steering system known as “quadra steering” system is a system in which both the front wheels and rear wheels get steered according to the speed of the vehicle and space available for turning. This system makes the vehicle more stable and enhances its performance. In this report, the performance of quadra steering system has been considered under low speed, medium speed and high-speed conditions. For parking and low speed conditions, rear wheels are turned in the opposite directions while at medium and high-speed conditions, rear wheels and front wheels are turned in the same direction. As a result, the vehicle becomes more stable and its turning radius reduces greatly.

SummaryIn the ear1.y 1940s, Dr M . H . Armstrong-Davison detlised an apparatus for inhalational anaesthesia. The apparatus was essentially a combination of Water's to-and-fro soda-lime canister and Hewitt's ether inhaler. The description of the apparatus is,followed by a brief historical note on Dr Armstrong-Dauison.

The number of vehicles is increasing rapidly in urban areas and metropolitan cities with in crease in population. To manage such a huge amount of traffic in an efficient way is the need of the hour. The conventional traffic signalling system are not adaptable to change in the amount of traffic. This paper solves the problem by making traffic signals smart enough to distinguish between the lanes which have different densities of traffic present in them. This paper makes use of image processing with the help of stored data set of respective lane images and a microprocessor to compute an output.

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Proximal humeral fractures are amongst the most common fractures. Functional recovery is often slow and many people have ongoing disability during activities of daily life. Unidimensional measurement of activity limitations is required to monitor functional progress during rehabilitation. However, current shoulder measures are multidimensional incorporating constructs such as activities, range of motion and pain into a single scale. Psychometric information of these measures is scarce in this population, and indicate measurement issues with reliability. Therefore, the aim was to develop the clinician-observed Shoulder Function Index (SFInX), a unidimensional, interval-level measure of shoulder function based on actual performance of activities, reflecting activity limitations following a proximal humeral fracture.