Passive houses are a relatively new concept in Sweden and by that it is meant a house without a traditional heating system. The most acknowledged passive house project is the terrace houses in Lindås, Gothenburg, which we have used as a reference. This project concerns a square apartment block. So far, no square apartment block has been built as a passive house in Sweden.The common opinion in the construction industry is that it is not economical to build extremely energy efficient houses. With Peab as commissioner our task was to investigate if that is true, if regarding the construction of a multi storey house as a passive houseMidroc, now owned by Peab, constructed in the block of Preussen in Jönköping during 2004-2005 four houses, with 132 apartments distributed on seven floors.

An increasing demand for wood products in China has resulted in large areas invested in fast-growing tree plantations of eucalyptus. Eucalyptus plantations are often associated with an intensive management including fertilization. By understanding the effects of fertilization and where in the ecosystem nutrients are accumulated a more sustainable forest management could be achieved. In this study, a nutrient budget including all biomass and soil components was created for Eucalyptus urophylla. The examined nutrients were nitrogen, phosphorus and potassium.

In the collections of the Vasa Museum, 100 leather objects have exhibited salt precipitations. The objects, that have previously been impregnated with PEG, have become deteriorated and fragmented due to the precipitations. During a previously conducted study it was established that the precipitations consisted of iron and sulphur. However, it was not established whether they occurred in the leather?s inner structure and no treatment plan was developed.

Corn is an important food and feed crop in the world, in Sweden it?s up till now grown on limited acreages mainly for silage. But I think it can get more important if you can grow it also for grain, because it?s a good animal feed for example, for life stock-, pigsand poultry. On of corns advantage is that it can produce the same amount of dry matter as for example wheat, barley and rise but with 25% less water. I will examine if it possible to grow corn for grain production in the south of Sweden.

Background: Testosterone is the most important androgenic hormone in the male. Aging is closely associated with reduction of serum testosterone which can lead to reduced muscle mass, muscle strength, bone density, and depression. These symptoms may be counteracted by administration of testosterone. Objective: The purpose of this study was to examine the effects of hormone replacement in men with age-related testosterone deficiency. Method: We performed a systematic review using Randomised Controlled Trials (RCT).

This work is about getting to know tufting as a technique and to design tufted products for home furnishing.It all began in Finland, where during springtime 2004, I got in contact with the technique oftufting for the first time. A very pleasant meeting that resulted in two carpets and a longing to continueand learn more. It was then that an idea for my final project started to take form. My wish was to designtufted ?floor jewelleries? and cushions.I made a base for my project during a design project in autumn 2004.

Examensarbetet behandlar tekniker för sekundär öppning av storskaliga brytningsrum i Boliden Mineral AB:s underjordsgruva i Garpenberg: När längden på brytningsrummen överstiger ett visst värde måste brytningen indelas i två steg: där första halvan av rummets längd bryts och återfylls i första steget, varefter återstående av rummets längd bryts i ett andra steg. I inledningen av brytningens andra steg krävs en fri yta att kunna spränga den kvarvarande malmen mot - dels för att ge plats för berget att svälla i och dels för att fungera som fri yta för de av produktionssalvorna uppkomna stötvågorna att reflekteras mot. Den öppningsspalt som används idag åstadkoms genom borrning och sprängning med relativt tätt hålmönster. Idén till arbetet var att det bör gå att göra både kostnads- och tidsbesparingar genom att använda en alternativ metod till borrning och sprängning vid skapandet av öppningsspalten. Målet med arbetet var därför att hitta en teknik som uppfyller denna idé.

During the summer of 2005 a number of steer producers in Skåne, Sweden, found that their animals graded less favourable according to the EUROP carcass grading system when slaughtered, than ordinary. The aim with this project was to determine factors that affects the production result in steer production and to find the reason to the lower classification. The project was initiated by Anita Persson, LRF, Skåne and was preformed with supervision from Ingemar Olsson, SLU, and Jens Fjelkner, Skånesemin. Ten producers of dairy steers located in Skåne was chosen for this study. The producers were interviewed to collect information about their steer production with respect to their planning and results.

The borehole heat exchangers of today suffer from poor thermal and hydrodynamic performance. The purpose of this thesis is to improve the performance of ground source heat pump systems and thermal energy storages by increasing the energy efficiency of the borehole heat exchangers. For this reason, the annular coaxial borehole heat exchanger (CBHE) has been analyzed. This type of heat exchanger is interesting in terms of both thermal and hydrodynamic performance. A model has been set up in the program Comsol Multiphysics in order to investigate the heat transfer characteristics along the borehole.

För att på skrivbordsnivå få möjlighet att planera framtida brytning i en gruva har det i dagsläget utvecklats ett antal olika mjukvaror som stödjer produktionsplanering för underjordsbrytning. I samband med att brytningen under jord förflyttas måste även ventilationskanaler förse fronterna med luft. Ventsim är ett program som är utvecklat för att simulera luftflöden i en underjordsanläggning. För att simuleringen ska bli trovärdig, krävs det att Ventsim-modellen kalibreras utifrån verkliga, uppmätta värden. För Kristinebergsgruvan blev en sådan modell uppritad för ett par år sedan.

Syfte: Syftet med denna systematiska litteratur?versikt ?r att unders?ka om supplementering av vassleprotein har n?gon p?verkan p? bent?thet (BMD) hos vuxna ?35 ?r. Metod: Litteraturs?kningen gjordes i tv? databaser, Pubmed och Scopus. S?kord f?r blocken var vassleprotein, BMD och randomiserade kontrollerade studier (RCT). Deltagarna i de inkluderade studierna var m?n och kvinnor ?35 ?r d?r interventionsgruppen fick supplementering av vassleprotein medan kontrollgruppen fick supplementering med likv?rdigt energiinneh?ll som ej inneh?ll vassleprotein.

This thesis investigated the possibilities to resume cultivation of an old manor house built of timber and what this would mean from an energy and moisture perspective. The building in this case study is named Sofiedals mansion and was built in 1858 in Valbo 11 kilometers west of Gävle.The structure of the house was documented and used as a starting-point for carrying out calculations focused on energy and moisture aspects. With the help of a number of computer programs and a conducted air tightness test, the buildings energy consumption were calculated and compared with the current building regulations.In addition, the building was analyzed considering energy retrofitting and what it meant for moisture problems. The energy retrofitting consisted of additional insulation, decreasing the buildings permeability through air sealing; window and door replacements. When a building is equipped with natural ventilation it is difficult to know its precise performance and how an energy retrofitting affects it.

Boliden Mineral Ab's mine in Garpenberg, Dalarna is going through a massiveexpansion. The annual ore production is being increased from 1,4 million tons to 2,5million tons in less than two years period of time. Along this expansion thedepartment of mining techniques is administrating a project of optimizing the shortterm planning for the mining production. Garpenberg have since mid 90s storedinformation from all mining processes in a database.The information consists of time data from all the different activities required in themining process, for example charging, blasting, loading etc. The database also containstime data of delays that are affecting the production.

This study was done regarding whether sealing or ventilation is the best solution to prevent moisture on cold attics. The authors of this report addressed the problem with moisture in attics when they started their cooperation with Peab.The methods included interviews with people, database research, and calculations of a project in Akersberga north of Stockholm. The conclusion is based on interviews and other information as they are analyzed in relation to the house of reference. The focus of this report is on problems with moisture in the attics known as cold attics.The background of the problem with moisture is that today?s slabs are usually insulated to save energy and that the attics nearly gives the climate as the outdoor climate.

In the fluidized bed furnace at Rönnskärsverken, Skelleftehamn, sulphur-containing ore concentrates are roasted in order to remove about 50% of the sulphur in the incoming ore concentrate. This occurs in order to reach the goal of a matte containing 55% of copper in the following smelting process. At the same time as the ore concentrate is partially roasted pollutions as arsenic, antimony and bismuth are expelled. Earlier made thermodynamic calculations of equilibrium suggested that calcium and magnesium form stable compounds with arsenic and thereby inhibit expellation of arsenic in the fluidized bed furnace, an element that is undesired. The purpose of this thesis work was to gain knowledge of the mechanisms behind the formation of these stable arsenic compounds.