It is essential to reuse- and recycles residues to decrease the amount of deposit materials and reach sustainable energy use. Two ways to work towards this is to recycle wood ashes to the forest as nutrient compensation and extract biogas from combustion of biomass.The aim with this study was to decide whether wood ashes that been used for biogas upgrading with accelerated carbonation also can be used as a nutrient compensation in the woods according to recommendations from the Swedish Forest Agency (Skogsstyrelsen).The ashes that were used in this study came from Johan Andersson who works at JTI in Uppsala, who also treated the ashes with biogas. The ashes have, in both untreated and treated condition, been analyzed in this study according to contents of elements, leaching properties, hardening properties and contents of crystalline phases, to evaluate what impact carbonation with biogas has on the ashes.The accelerated carbonation led to hardening of the ash, and decreased amount of CaO- and increased amount of CaCO3. The CO2-uptake also entails a dilution of the elements, and the content of nutrients and trace elements decreases. However the results show an indication of an uptake of S from the biogas to the ash, since the dilution had a smaller impact on S than the rest of the elements.

This is an empirical study mapping out different citation practices to games in the fieldof game studies. From an analysis of 7 journals, 3 conferences and 22 canonical bookswithin game studies, 5 different strategies for game referencing have been identified.Games scholars can either totally refrain from referring to the games they discuss, onlyreference some specific games, cite them as something special and deviant from othersources, refer to them in accordance with other sources or refer to games with regard totheir unique properties as a reference. For the reference librarian working with issuesrelating to game studies the diverse reference practices among game scholars pose aspecific challenge. A challenge that partly can be overcome by knowing how gamescholars frame games and how these frameworks are in conflict with the ways librariansframe and classify sources due their physical properties..

Introduction     Knowledge has come to be an increasingly important factor for both individuals in the labor market and companies in competition. When a person leaves an organization the knowledge often follows, and a knowledge gap is created. When knowledge is shared within an organization, the individual?s knowledge is available for all members of the organization. Knowledge can thus be converted from human capital to structural capital.

Hemp is a versatile plant with many uses that has been around for thousands of years. The plant is highly adaptable andwill cultivate in almost any soil. It has excellent remediation properties and has shown to be relatively consistent when itcomes to crop yields. The aim of this literature survey is to examine how hemp can be used to be considered asustainable energy crop in Sweden through database searches and interviews. Hemps characteristics as an energy cropand its remediation properties is evaluated and compared with other plants that are used in Sweden.

The Multispectral Canopy Reflectance Model (MCRM) by Kuusk (1995) has beenused to simulate the reflectance of a sugarbeet canopy. The simulated reflectancevalues show high absorptance in the VIS area, compared to field measurements, andhigh reflectance values in the NIR area. The errors may be due to overestimation ofclorophyll content in the sugarbeet leaves and scattered light during fieldmeasurements. The estimation of the clorophyll content where carried out using thePROSPECT-model by Jacquemoud & Baret (1990).During the vegetation period, the state of the canopy moves towards a closed canopy,with sparse vegetation in spring. The MCRM-model was used to perform a ?spring?simulation, which was compared to the original simulation.

This thesis describes the new construction of a small house and it includes studies of three heating systems: geothermal heating, district heating and pellet. The purpose of this thesis is to project a small house which can manage Building Regulations, BBR conditions and then examine three possible heating systems for the small house. This thesis is a literature study which gives an understanding of the heating systems technical structure, properties and costs. An empirical study completes the literature study by giving a deeper understanding of district heating costs and pellet costs. The empirical study contains two interviews, one of which was conducted in a district heating corporation and the other interview was conducted in a pellet corporation.

This report discusses the constructionof different types of exterior wallconstructions and analyses wall layers.Standard wall constructions from theSwedish building contractors NCC andSkanska and also from the materialproducer Isover have been chosen for theresearch. Life cycle cost analysis hasbeen made to conclude the mostprofitable wall type, seen from asustainable and economic perspective.The calculations have been made for aperiod of 50 years.The report shows that building with wellinsulated walls is a more profitablesolution both economically and whatconcerns sustainability even though thehigher investment. However, when wallssimilar insulation properties are beingcompared, the study proves that lowerinvestment cost is more profitable.The report introduces requiredconstruction techniques of walls inorder that the reader should understandwall constructions with different layersand properties. The essay shows theimportance of properly constructed wallsto avoid air leakage and moisturedamage.The essay has been implemented byliterature studies, contacts with NCCand Skanska and by energy calculationsmade by hand and using the software VIPEnergy..

The development of productivity in the construction industry has long been at a steady state compared to the manufacturing industry. Studies have shown that, amongst other things, waste on construction sites can reach up to one third of the total production cost. This has been observed from different aspects, and change is forthcoming.This thesis aims to provide a foundation for an increased productivity at production sites of building bridges. It is primarily based on a field study at Skanska, at a bridge construction site near Grängesberg. Via continuous interviews with the whole production crew, construction workers and management, information on interference and possibilities of improvement at the work site has been documented.

Studies in the recent years have showed that the preschool playground is important for both the physical and emotional development of children. The Botkyrka local government has decided to improve their preschool playgrounds in order to take advantage of these studies. The administration of childcare and education in Botkyrka is arranging a network between the different preschools where they work together to improve their outdoor environments. The network is arranging workshops and seminars where people from the different preschools can come and gain inspiration for improvements of their own preschools. The administration of properties has created a document where they describe the changes that are supposed to be made to the different outdoor environments. Through the administration of properties and the person who is responsible for the outdoor environments I was introduced to their work with the preschool playgrounds.

Public concern about the release of toxic compounds from wood-based products drives legislation towards enforcing industries to find and use more sustainable solutions for wood treatment. Plant oils are good alternatives to treat wood, minimizing or even neutralizing the impact on the environment. Wood modification with epoxidised linseed oil (ELO) and acetic acid as catalyst has proven a suitable method to impregnate and protect wood. However, the mixture presents a serious inconvenience because of the quick polymerization of the ingredients that limits its practical application. Therefore, this study was designed to evaluate an alternative method using a two-step process which bypassed the problem above.

It is essential to reuse- and recycles residues to decrease the amount of deposit materials and reach sustainable energy use. Two ways to work towards this is to recycle wood ashes to the forest as nutrient compensation and extract biogas from combustion of biomass.The aim with this study was to decide whether wood ashes that been used for biogas upgrading with accelerated carbonation also can be used as a nutrient compensation in the woods according to recommendations from the Swedish Forest Agency (Skogsstyrelsen).The ashes that were used in this study came from Johan Andersson who works at JTI in Uppsala, who also treated the ashes with biogas. The ashes have, in both untreated and treated condition, been analyzed in this study according to contents of elements, leaching properties, hardening properties and contents of crystalline phases, to evaluate what impact carbonation with biogas has on the ashes.The accelerated carbonation led to hardening of the ash, and decreased amount of CaO- and increased amount of CaCO3. The CO2-uptake also entails a dilution of the elements, and the content of nutrients and trace elements decreases. However the results show an indication of an uptake of S from the biogas to the ash, since the dilution had a smaller impact on S than the rest of the elements.

Title: Management control of facility efficiency in municipalities - A case study of Halmstad municipalityLevel: BachelorSeminar date: 2012-05-31Authors: Markus Nilsson & Sara MattssonAdvisor: Sven-Ola CarlssonKey words: Control management in municipality, facility efficiency, management by objectives, internal rents and incentivesBackground: The public sector owns and manages a large property portfolio and in the municipalities, the properties are always a big cost item. Because of the outside world changes and the public interest, the properties should be used as efficiently as possible.Purpose: The purpose of this paper is to describe how control management of facilities looks like a municipality. The paper also seeks to explain how employees work to make the facilities more efficient in a municipality.Methodology: The authors use a qualitative method with open interviews.Theoretical perspectives: The choice of theory was made with the field of management control and facility efficiency in mind. The theory therefore includes management by objectives, internal rents and reward systems, motivation and communication within organizations.Empirical foundation: The organization has undergone a reorganization 2010/2011. There are no clear incentives to reduce facility costs.

Cement manufacture accounts for 3-5 percent of total global carbon emissions. There is a growing interest in reducing the environmental impact and conserve limited natural resources. In cement production, clinker productions consume 87.5 percent of the total energy consumed in the cement manufacture.Cementa has since many years, focused on reducing the environmental impact of cement production. The work has involved the entire production process from selection of alternative fuels to the development of cement with less clinker content. During 2013/2014, two new types of cement (Bascement and CEM II / B) will be introduced to the Swedish market.

This study is done on behalf of Södra skogsägarna in the autumn of 2012. The main purpose of the study is to get an explanation to why some of the members are passive in their forestry, and how Södra can stimulate them to become more active. To achieve this a questionnaire study was conducted on the members of Södra in the community of Gislaved. The result of the study shows that there are many different factors that influence whether the forest owner is active or not. Examples of those factors are timber prices, the forest owner's objectives and the forest owner's financial situation. The main goal for the forest owners in the survey was to obtain high economic result and to increase the standing timber volume for the next generation.

Title: Management control of facility efficiency in municipalities - A case study of Halmstad municipalityLevel: BachelorSeminar date: 2012-05-31Authors: Markus Nilsson & Sara MattssonAdvisor: Sven-Ola CarlssonKey words: Control management in municipality, facility efficiency, management by objectives, internal rents and incentivesBackground: The public sector owns and manages a large property portfolio and in the municipalities, the properties are always a big cost item. Because of the outside world changes and the public interest, the properties should be used as efficiently as possible.Purpose: The purpose of this paper is to describe how control management of facilities looks like a municipality. The paper also seeks to explain how employees work to make the facilities more efficient in a municipality.Methodology: The authors use a qualitative method with open interviews.Theoretical perspectives: The choice of theory was made with the field of management control and facility efficiency in mind. The theory therefore includes management by objectives, internal rents and reward systems, motivation and communication within organizations.Empirical foundation: The organization has undergone a reorganization 2010/2011. There are no clear incentives to reduce facility costs.