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1	Physico-chemical properties of titaniferous iron-making slags under neutral and under reducing conditions Van Der Colf, Jacobus Cornelius Gideon Kotze. January 1974 (has links) A tbesis sutmitted to the Faculty of Engineering in fulfilment of the requirements for the degree of Doctor of Philosophy. / Available data on particularly viscosities of titaniferous melts under oxidizing conditions are reviewed, and an attempt is made to explain the high fluidity of such melts. (Abbreviation abstract) / Andrew Chakane 2018 Physico-chemical Properties Titaniferous Iron-making Slags
2	Teknik och aggregering i produktionsteorin : svensk järnhantering 1850-1975 : en branschanalys Wibe, Sören January 1980 (has links) The aim of this study is to carry out a fairly overall empirical analysis of the conditions of production in an industry. The aim of the empirical analysis is, however, not only to give information about empirical conditions, such as technical development, efficiency of production, etc, but also to illustrate the theoretical and methodological problems in the economic theory of production.The engineering analysis makes the foundation from which economic production functions are constructed. As the study focuses on Leif Johansen!s production model, four different types of functions are constructed: ex ante and ex post micro functions and long run and short run macro functions. A study of structural changes and technical development in the periods 1960-1975 and 1850-1975 then follows. For the first period a study of productive efficiency is also made.A discussion of theoretical problems is integrated with the empirical analysis, Two big problems in production theory are, however, dealt with separately, namely the theory of engineering production analysis and the aggregation of micro production functions.It is difficult to state a specitic conclusion with just a few words. The study consists of so many minor observations and results, that it is difficult to lift out any separate. A negative general conclusion can perhaps be said to be that great scepticism should be shown the empirical value of ordinary production function estimates. On the other hand, the positive conclusion can be said to be the fact that the dissertation shows the value of having an engineering approach in empirical studies of production. / digitalisering@umu Engineering production functions production theory iron-making industry short-run production functions
3	Smålands möjliga centralplatsområden under järnåldern. Gustavsson, Petter January 2017 (has links) Denna uppsats behandlar frågan kring en eventuell förekomst av centralplatser eller centralplatsområden under järnåldern (ca 500 f.Kr. - 1050 e.Kr.) i det som idag är Småland. Utgångspunkten är tidigare forskning inom området järnålderns centralplatser, främst i Sydskandinavien, samt några av de centralplatsindikerande förklaringsmodeller, främst då Charlotte Fabech och Jytte Ringtved (1995) som bedöms applicerbara i föreliggande studie om Smålands järnålder. Sammantaget bedöms det sammantagna källmaterialet från järnåldern, med tyngdpunkt på ett flertal centralplatsindikerande fyndkategorier, så som prakt- ädelmetall- och vapenfynd, samt förekomst av olika typer av hantverksfynd, produktionsverksamhet och metallbearbetning, främst järnhantering. Därutöver läggs särskild vid de under järnåldern föreliggande resursmässiga och kommunikativa förutsättningarna. Vidare undersöks ortnamnsaspekten som en möjlig centralplatsindikerande faktor. Också huruvida man genom att utgå från den medeltida häradsindelningen kan underlätta en centralområdesidentifiering, utforskas inom ramen för detta uppsatsarbete. / This study deals with the question whether there are any archeaological traces or evidence of central places or central areas in the Swedish province of Småland dating back to the Iron Age (circa 500 B.C - 1050 AD). The basis of this study is primarily the arceological data consisting of different arcehological remains such as traces of settlement and habitation, graves and grave finds and iron making. Additionaly the presence of central place- indicating place names are considered. central places central areas Småland Iron Age place names iron making agency centralplatser centralplatsområden Småland järnåldern ort- och platsnamn järnframställning agency Möre Handbörd Sevede Tjust Aspeland Vista Tveta Vedbo Njudung Finnveden Värend Archaeology Arkeologi

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