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Computer-Aided Planning of New Production Lines in Mechanical Industries and of Working Environments for Disabled Persons

To optimize productivity and working-life quality, it is important to understand and utilise the connections between productivity and working environment. Culture and the state of the market may affect the strength of these connections. However, in order to ensure flexibility and quality in products and services, it may be useful to have motivated, skilled and responsible coworkers at all levels.

Test Pattern Generator

Jason 85 ls är en testbildsgenerator konstruerad för de färgbildsplottrar som framtagits vid institutionen. Den är uppbyggd kring Intels mikrodatorkretsar med CPU 8085 och DMA-kanal 8257-5. Minnet består av 1.5k RAM-minne och 3k PROM-minne. Testbildsgeneratorn simulerar bandstationen som normalt arbetar mot plottern och ger denna data för uppbyggandet av bilden. Testbildsgeneratorn kan generera f

Self-generated vibrations and process stability when turning high chromium white cast iron with PCBN tools

The dynamic instability and related problems when turning high chromium cast iron (HCCI) with two polycrystalline cubic boron nitride (PCBN) tools in wide range of cutting speeds and feed rates were studied in the article. The tool wear mechanisms and specifics for both tools as a main criterion of appearance of process instability were investigated. In spite of the chatter-like surface of machine

Famines in the Nordic countries, AD 536 - 1875

The first part of this paper aims at identifying the timing of famines in the Nordic countries since the middle ages. This is done by using qualitative famine reports from the literature since quantitative data on famines are scarce or non-existent, at least before the early modern period. We supplement the reports with climate data and price data. Our survey indicates that widespread famine was a

Ternary Block Copolymer Systems - Phase Behaviour and Phase Structure

Ternary isothermal (25°C) polyoxyalkylene triblock block copolymer ((EO)x(PO)y(EO)x where x is the number of ethylene oxide, EO, segments and y is the number of propylene oxide, PO, segments) systems with water and p-xylene as selective solvents for the PEO and PPO blocks, respectively, were chosen as study systems in this thesis as these ternary systems are good model systems for the self-assembl

Sorption and transformation of polar pharmaceuticals during wastewater treatment studied by hollow fiber liquid phase microextraction

Popular Abstract in Swedish Under det senaste årtiondet har förekomsten av läkemedel i miljön rönt stor uppmärksamhet. Studier har visat att flera läkemedel hittats i sjöar och vattendrag och kan förorsaka negativa effekter hos vattenlevande organismer. Den i särklass största vägen via vilken läkemedel når miljön är avloppsreningsverk. Efter att vi ätit ett läkemedel kommer kroppen också att utsönThis thesis addresses the application of hollow fiber liquid phase microextraction as a simple, efficient and environmentally friendly tool to study the fate of four common anti-inflammatory drugs (ketoprofen, naproxen, diclofenac and ibuprofen) during wastewater treatment. Initial experiments verified that this technique is applicable on aqueous as well as suspensions of solid samples, thus great

A Simple Stability Criterion for Control Systems with Varying Delays

Stability in presence of (possibly varying)time-delays in a control loopconsisting of a continuous-time plant and a discrete-time controlleris studied.A simple stability criterion is developed—agraphical test in a Bode plot of the closed loop system. The graphicaltest makes it very easy to design the controller for time-delayrobustness.

Gene expression in the dorsal root ganglion and the role of PAI-1 and amphiregulin during regeneration

This thesis is concerned with two aspects of peripheral nerve injury. First the early changes in the gene expression of the dorsal root ganglion (DRG) in response to sciatic nerve injury as revealed by micro-array analysis. Second an examination of the effect of PAI-1 and amphiregulin on survival and axonal outgrowth from DRG. Based on the micro-array analysis, performed on DRG 12 h and 24 h post

Social Capital, Lifelong Learning and the Management of Place

In this paper we present and discuss some of the lessons learnt from the completed CoLabs.eu project within the so called R3L-initiative on European Networks of Learning Regions. In the project we made some concrete social experiments in order to “make the village a virtual campus”. We start this paper by making a general introduction to the research area and by giving the motivating background to