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Identifying Time-Consuming Human Modelling Tool Activities

The aim of this study was to identify and measure time-consuming human modelling tool activities. Five human modelling tool users at Volvo were observed for five days each. The results showed a wide distribution of both indirect and direct working tasks, as well as non-value added tasks such as waiting time. Most of the activities identified appear to be necessary to perform human modelling simula

Implementing WordNet for Swedish adjectives

A Swedish version of WordNet was created and around 300 Swedish adjectives, mainly from the semantic field of strength, were implemented. This paper is a documentation of the implementation. The purpose of the study was to investigate the possibilities of applying WordNet to Swedish and to illuminate general problems with WordNet as well as specific problems in the handling of adjectives. First, a

Ash-Line Control

For efficient firing in sloping grate bark furnaces, it is important to control the ash line position on the grate. The ash line is the border between burning fuel and fuel which is burned out (ash). Here, the problem of detecting the ash line with an image processing system is treated. The presentation of trend curves to the operator is of special interest. The process is slow and trend curves pr

Hedonism as the Explanation of Value

This thesis defends a hedonistic theory of value consisting of two main components. Part 1 offers a theory of pleasure. Pleasures are experiences distinguished by a distinct phenomenological quality. This quality is attitudinal in nature: it is the feeling of liking. The pleasure experience is also an object of this attitude: when feeling pleasure, we like what we feel, and part of how it feels is

Adaptive Feedback Control

Adaptive control is now finding its way into the marketplace after many years of effort. This paper reviews some ideas used to design adaptive control systems. It covers early ideas which primarily attempt to compensate for gain variations and more general methods like gain scheduling, model reference adaptive control, and self-tuning regulators. It is shown that adaptive control laws can be obtai

Experimental study on the cementation level in an artificial rock with crushable grains

The results of an experimental investigation of the effects of the degree of cementation on the mechanical behaviour of a porous artificial rock with crushable grains are presented. The studied material is an analogue of real cemented granular materials, such as pyroclastic weak rocks, carbonate sands, calcarenites and compacted decomposed granite. The present study aims to clarify the role of the