Search for dissertations about: "Helena Håkansson"
Showing result 1 - 5 of 9 swedish dissertations containing the words Helena Håkansson.
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1. Ethanol Pulping of Reed Canary Grass
Abstract : The aim of this study was to investigate the possibility of processing an agricultural crop grown in Sweden to usable pulp. A further purpose was to study ethanol pulping applied to a non-wood raw material.The first part of this thesis deals with the criteria for selecting a fibre crop for further studies. READ MORE
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2. Ethanol pulping of reed canary grass
Abstract : .... READ MORE
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3. Preparation and Characterization of Chemical Pulps from Wood and Reed Canary Grass
Abstract : This thesis presents laboratory results from ethanol pulping of reed canary grass for the production of paper pulp. The focus was on the influence of cooking pa-rameters on the delignification. The strength of the grass pulps was found to be low and the use of such pulps will therefore be limited to a few products. READ MORE
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4. Language Choice and Code-Switching in the Azerbaijani Community in Tehran : A conversation analytic approach to bilingual practices
Abstract : This study examines language choice and code-switching patterns found in the Azerbaijani speech community in Tehran, Iran. Two empirical studies have been combined. READ MORE
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5. Process modelling based on data from an evaporation and a CTMP process : Analysis of energy efficiency and process variability
Abstract : The manufacture of pulp and paper is an energy intensive process configured of several unit processes that shape a network of flows of wood chips, chemical pulp, mechanical pulp, paperboard, steam and other important components. Improved energy efficiency supports sustainability of the process and the products. READ MORE