AbstractIn urban societies people spend more and more time indoors, which put great demands on the indoor environment. If the ventilation is to manage the removal of unwanted substances in the indoor air, a good mixing of the air is required. The question arises that, whether the buoyancy forces will counteract a good mixing of the indoor air or not?This report aims to clear up the difficulties whether you need to consider the buoyancy forces or not, when adjusting a ventilation unit. For studying the indoor mixing of the air a two dimensional model is constructed in COMSOL Multiphysics.

ADHD (attention deficit hyperactivity disorder) is a phenomena that is much talked about in both schools and in communities. Today, there is a conflict surrounding the diagnosis ADHD. A part of the conflict takes part between the sociologist Eva Kärfve and Christopher Gillberg, professor in child- and teenage psychology. The roots of this conflict surrounds the much debated line of what is seen as normal and ?too? different, basically how many children that actually should have the diagnosis.

The purpose of this degree project is to study a work evaluation project in a municipality, on the basis of key participants. The municipality is the employer, per-forming the workplace project and the chief objective is to reach gender equality between the employees. Equal pay for equal work. Through work evaluation is it pos-sible to find out which of a lot of different jobs, which have equal requirements. The jobs, which have equal requirements, should have equal pay.

Högbytorp is Ragn-Sells? largest waste facility and it is located north of Stockholm. There is an old landfill still in use, but at the end of this year it will be closed. The waste deposited on the landfill can, through decomposition, give rise to a large amount of methane gas, which is an energy rich gas that can be used for heat and electricity production. To receive a relatively large amount of gas, the decomposition requires a high moisture content in the waste.

The report contains three parts. The first part is a summary and overall presentation of thermalcracks and preventing measures against such cracks. This is a theoretical part where theinterested designer can get acquainted with various alternatives, be guided to more detailedliterature, and receive some practical information regarding the design of the respectivemeasures.The second part deals with calculation of the risk for thermal cracks and design of water coolingas a limiting measure. Two complementary methods are reviewed for efficient calculation:?the handbook method CraX1(by Lulea University of Technology) is used for quickverification?finite differential analysis in the calculationtool ConTeSt Pro for more precise projectingHere is also presented a development of existing standards through design of the cooling systemby means of the Bernoulli equation.

Women?s strive to reach higher leading positions and build a career that's combinable with child birth and private life, is an on-going debate among academics in the fields of leadership, management and organization. This bachelor level thesis is written at the section of Management & Organization at School of Business, Economics and Law in Gothenburg, Sweden, spring semester 2015. In our research methodwe have used source triangulation with a qualitative approach to the subject of egg-freezing in favour forcareer with a focus on Swedish workplaces. The purpose has been to illuminate, map out and further problematize how the introduction of the employee benefit in November 2014 can be seen to relate to social sustainability.A lot of the management research that discusses social sustainability tends to focus on how women (and men!) try to balance family life and career and how to combine (or to not combine) them.

A current conveyor is an active building block that can be used to implement most active and passive components. It differs from the operation amplifier in that it uses current instead of voltage. The current conveyor also has significantly higher voltage gain over a broader frequency range. To simplify the construction of analogue circuits and increase the construction efficiency it is desirable to use a top-down methodology. This means that the whole system is partitioned into a hierarchy of subsystems.

This bachelor thesis project has been executed at Outotec Sweden AB in Skellefteå. Outotecs main business focus is selling mineral and metal processing technologies. A rest product from the metal process is particle-polluted gas and cyclone designs are today the most commonly used abatement device for particle control. A cyclone provides a simple design with high efficiency particle percolation by using air streams.The purpose of this work is to reduce the time it takes create new cyclone designs in Outotecs projects. An extensive construction work is needed for every new cyclone order due to new designs.

For Swedish companies to compete with low wage countries, developments in theproduction industry moved towards streamlining the entire company. One of themost effective ways for a company to streamline their operations is to review theirproduction. All companies have processes in their production that add no value tothe product. In order to compete, they must be eliminated.The purpose of this report is to reduce work in process (WIP) in the flow ofbashus at Volvo Powertrain in Köping. The aim is also to try to find reasons whyVolvo Powertrain feel that they have problems with the storage principle First in-First Out (FIFO).To meet the objective, empirical studies were conducted at the company whilethe literature in the area was studied.

AbstractIt is important to choose which spare parts to keep in stock. With the right spareparts in stock the costs for inventory and production loss will decrease. Cavalieri et al. (2008) highlights that the balance between inventory cost and production loss is underestimated.  It affects the company and must be considered before decision on purchase.The problem with spare engines is that they are all more or less critical for the production. That can be a reason for why no previous research targeting engines and classification of with engine should be kept in stock has been found.

Many times it can be the simple things that affect the attitude of work and which have an importance on the organization's effectiveness. These are not always apparent but can have a large importance for the motivation and the attitude of work. Large number of companies uses wage and other financial rewards system but is there any form of informal factors that have an importance for the coworkers and that affects motivation. What factors that affect the motivation within the industry are interesting to examine and specifically the factors that are not apparent, in other words informal factors that increases the motivation. The purpose of this thesis is to examine and describe which informal motivator factors co-workers/employees in a production department think are meaningful.

In the light of ever increasing international trade around the globe, affecting men and women in all countries, it is surprising that so little attention is given its gender effects. The effects of trade are said to be gender neutral, but could potentially act reinforcing on the existing gender patterns in a society. The aim of this thesis is to examine whether the implications for men and women in relation to trade liberalization can be found to differ. By stylizing some differences between men and women, this is done by examining the theoretical implications mainly via the Heckscher-Ohlin model and through a Beckerian approach. The implications found are then compared with the findings in existing empirical work.

Costs of maintenance on combines are a subject of interest thus it constitute a large investment and cost for the individual farmer. Therefore it is important to have up to date knowledge and the right facts to be able to do reliable calculations on one of the largest investments for a farmer. The aim of this study was to compare costs of maintenance on combine/threshingmachine with the computer program for advising environmental issues in agriculture, STANK. Interviews took place and data were collected by handing out questionnaires to 20 farmers. A similar study conducted by Neuman (2003) investigated costs of maintenance and compared these with STANK. The results of this study have also been compared and examined related to data from SLA - Skogs och Lantarbetsgivarförbundet. The result shows that 18 out of 20 combines were given a higher cost of maintenance when using STANK compared to the numbers in this study.

The Iranian artist Shirin Neshat has been living in self-imposed exile since the late 1970s, as she chose not to return to her home country following the ?79 Islamic Revolution. Through her works Neshat examines Iran before and after the revolution and follows political and civil transformations through strong photographs of women in her country of birth.  My own use of the term exile deals with the analysis of the state of exile in relation to artistic work as a globalized and underlying motivation for art and artists. The new definition of exile is analyzed in relation with the artist?s photographs and the verbal and visual statements.

To regularly remove woody vegetation along the roadside of forest roads is an important part of the road maintenance, since the vegetation binds moisture in the road side and, thus, the removal makes the road drying faster with results in improved bearing capacity. Vegetation removal also makes it easier to upgrade the road by material recycling from the ditch and, moreover, the visibility along the road is maintained.The aim of the study was to evaluate what type of chain flail is the best and most cost-effective for removal of different kind of woody vegetation along forest roadsides.Time studies were made on two chain flails when removing woody vegetation in three different classes; easy-, middle- and heavy shrub removal. The studied flails were one light and rather simple flail named Optimal M160 and a heavier and more advanced flail named Slagkraft H210. The removal was made according to Holmen Skogs? specification and the quality of the cleaning was measured by objective belt inventory.The productivity was higher with the heavy flail within all cleaning classes.