As distributed systems increase in popularity and experience resource contention, new resource allocation methods are needed for scalability and manageability. In this thesis, I investigate the use of auctions, a type of market-based methods, as a decentralized resource allocation approach. Agents in auctions individually submit bids that provide critical information, including agents‘ private ...

Small piezoelectric transducers bonded to the outer raceway of a rolling element bearing can be used to send ultrasonic pulses to the element-raceway contact and receive reflections. Interpretation of the magnitude and time of flight (ToF) of the reflections can be used to deduce amount of load imparted between roller and raceway. The approach is most successful when the sensor is smaller than ...

The interaction between the wheel and rail greatly influences the dynamic response of railway vehicles on the track. A roller rig facility can be used to study and monitor real time parameters that influence wheel-rail interaction such as wear, adhesion, friction and corrugation without actual field tests being carried out. This paper presents the development of the mathematical models for full...

Burnishing is a chip-less finishing process, in which a hard roller or ball presses the surface layer of part to perform plastic deformation in the surface layer and produce improved finish, enhanced hardness and compressive residual stresses on the surface of special materials such as Aluminum and Brass. In the following research, the effect of input parameters such as feed rate, cutting speed...

Fairground operators are obliged to display a warning to the effect that people with heart disease should not ride on the roller coasters. A 31 year old man with a history of sustained monomorphic ventricular tachycardia induced by exercise ignored this advice and survived a ride on a roller coaster at the Glasgow Garden Festival without adverse effects. This prompted us to monitor heart rate b...

List of Reviewers: C. E. Ballou; E. Buddecke; E. A. Davidson; R. J. Doyle; D. Duksin; J.-M. Ghuysen; T. Hardingham; V. C. Hascall; D. HeinegArd; F. W. Hemming; D. Horton; R. C. Hughes; W. B. Jakoby; R. W. Jeanloz; 0. Kandler; T. Laurent; Y. C. Lee; U. Lindahl; B. Lindberg; H. Lis; F. G. Loontiens; J. Montreuil; H. Muir; A. Neuberger; E. F. Neufeld; T. Osawa; L. Roden; H. Schachter; R. Schauer; ...

Observations of streamwise and crossflow instabilities on swept circular cylinders over a range of inclinations are presented. By considering sweep angles through the full range between the two extremes studied in the literature, we relate the streamwise vorticity of the unswept case (Kestin & Wood, J. Fluid Mech. 44) to the more aggressive crossflow instability at high sweep angles (Poll, J. F...

Compression garments for the lower limb were tested in two groups--general support garments and anti-embolism supports. A total of 98 patients was examined. The method used was by the interposition of partly fluid-filled pressure sensors between garment and skin. A combination of roller bandage with shaped tubigrip (SBB--Seton) and Sigvaris stockings afforded effective pressure in the general s...