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Resource optimization mechanisms, as admission control and traffic management, require accurate performance models that capture the dynamics of the system during high loads. The main objective of this paper is to develop an accurate performance model for database servers in a telecommunication service management system. We investigate the use of a server model with load dependency. Concurrent requ
The flow and acoustic fields that are generated by two coaxial jets are considered. The problem is handled by solving the flow field using Large Eddy Simulation (LES) and the acoustics by a wave equation with source terms provided by the instantaneous LES. The paper is focused on the influence of the grid resolution on the solution accuracy.
Simultaneous OH- and formaldehyde planar-LIF measurements have been performed in an optical engine using two laser sources working on 283 and 355 nm, respectively. The engine used for the measurements was a car diesel engine converted to single-cylinder operation and modified for optical access. The fuel, n-heptane, was injected by a direct injection common-rail system and the engine was also fitt
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Recently much attention has been paid to studies concerning bubble dynamics in the cavitation phenomena and this topic has been the subject of many research works. In fact, the simulation of non-spherical bubble dynamics and its interaction with solid boundaries have received much less attention due to the complexity of the problem. One of the main reasons of the structural damages in the cavitati
Popular Abstract in SwedishPopulärmusikens starka ställning idag gör det angeläget för musikvetenskapen att ta dess konstnärliga aspekter på lika stort allvar som ämnet vanligen behandlar konstmusik. Den populära visan lever i en riklig mängd olika former, allt från folkvisor till rockmusik. Ändå är studier sparsamma idag av de sätt ord, ton och röst samverkar på i visan. Denna studie sätter dessaThe aim of this study is to investigate relationships between words, music and voice in contemporary swedish popular ballads – visa – as it is realized in the works of Swedish artist, singer/songwriter Olle Adolphson (b 1934).Entering the world of entertainment in 1956 he quickly became one of the most prominent representatives of the literary branch of popular song in Sweden. His work is characte
In order to stay competitive and meet the changing needs of the market, construction firms must develop efficient means of gathering and using knowledge of end-users requirements. This study uses two case studies, to explore the knowledge creation of end-users requirements in project driven firms. The focus of the study is the interface between firm and project. The interface is analyzed from both
The input device for Remote Gaming has matured from a simple pointing device to a wireless console and recently even motion sensors are added. Similar motion sensors have already been integrated in camera’s to provide for image stabilization. In the cellphone, global motion is foremost determined through image processing. The paper extends this concept to support gaming, while aiming for a low-com
