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Numerical methods for load prediction in acoustic fatigue

Acoustic fatigue can occur in structural elements of an aircraft exposed to very high sound pressures. To deal with acoustic fatigue, mainly empirical methods have been applied and often late in the design phase. Current design guidelines have several limitations. First, they do not say anything about the load intensities. The load levels can be determined either experimentally or numerically. Exp

Språkövergång : rapport från ett studiebesök på Teaterhögskolan i Oslo (februari 2005)

Jag har sedan länge haft ett stort intresse för att låta skådespelarelever få undervisning inte bara i så kallad rikssvenska utan jag anser att de även bör få lära sig att använda olika dialekter i sitt sceniska arbete. Ett intresse för detta finns också hos elever. Många skådespelare menar att undervisning i andra dialekter skulle vara nyttigt. Man har bl.a. påpekat att det skulle medföra en ökad

A Gain-scheduling Approach for Control of Dissolved Oxygen in Stirred Bioreactors

This paper discusses control of dissolved oxygen in a bioreactor when the stirrer speed is used as control signal. During batch and fed-batch cultivations the operating conditions change significantly which causes tuning problems, especially when performance requirements are high. A linearized process model reveals that the variations in the oxygen dynamics are mainly due to changes in the volumet

Computer Control: An Overview

Computer control is entering all facets of life from home electronics to production of different products and material. Many of the computers are embedded and thus ``hidden'' for the user. In many situations it is not necessary to know anything about computer control or real-time systems to implement a simple controller. There are, however, many situations where the result will be much better when