The Homogeneous Charge Compression Ignition (HCCI) engine is promising in terms of lowNOx, low particulates and high efficiency. Due to its homogeneous charge, where thecombustion starts almost simultaneously from a number of points in the combustion chamber,only lean mixtures are possible to burn because of the resulting rapid combustion, which is muchfaster than the combustion in an SI-engine or a diesel engine. When richer mixtures are used thecombustion will start earlier and also be more violent.To phase the combustion later and lower the combustion speed, external cooled EGR can beused. The EGR-system used in this thesis uses a divided exhaust channel where one channel andits corresponding valve are used only for transporting EGR back to the intake system.Consequently the EGR-valve is connected to the intake pressure. This system is called Direct-EGR (D-EGR).Engine tests verified that the CA50 indeed is phased later when cooled EGR is used.

AbstractHow do pupils with intellectual disabilities experience participation and involvement in school work? It was a question I had in mind when I was formulating the thesis statement. I wanted to catch pupils? experiences and analyze them from the sociology of childhood. Do pupils want more involvement and what obstacles and opportunities do pupils find to exert participation and involvement?The study is based on six interviews conducted with pupils enrolled in the compulsory school for pupils with intellectual disabilities.

Our starting point has been to use the football player Zlatan Ibrahimovic as a model person for individualism that seams to break the ordinary socialization pattern in Sweden. The purpose of this study is to examine how the team leaders handle the socialization of more individualistic focused individuals/young persons into groups, since the Swedish School Curriculum is designed to meet each individual on his or hers former experiences. Is the socialization of individuals within team sports affected by their cultural background? And, in that case, should those facts have consequences for the sport subject at school? Those are the questions we want to explore. Besides a survey of documents, we have been seeking answers to our questions through interviews with the team leaders Roland Nilsson and Peter Bergander, the pedagogues/teachers Karin Jutterström and Håkan Jensgård and the professional football player Abgar Barson.Our study shows that the leaders and teachers of today have begun to change their view about individualists.

In many products a compromise between ground clearance and the required space to store the product has to be made. This problem attracted the attention of the authors of this thesis.The objective of this project is to develop a functioning solution to a foldable wheel. The solution should be applicable to several types of product groups. A limitation for this work has been made so that the work only covers solutions for lighter vehicles.The purpose is to drive this project forward, so that a solution can be found. Furthermore the purpose of the report is to clarify how the authors proceeded to design and construct the wheel according to a fixed specification.

AbstractThe purpose of this essay was to study women?s and men?s place in the room, the public room or the private room, in the five best sold picture books written by Astrid Lindgren and the analysis was done with a feministic perspective. A lot of children read Astrid Lindgren?s picture books and therefore this might influence what?s female and masculine. The five best sold picture books written by Astrid Lindgren is: 1) Känner du Pippi Långstrump 2) Den där Emil 3)Visst kan Lotta cykla 4) Nils Karlsson-Pyssling flyttar in 5) Kajsa Kavat hjälper mormor.

Our starting point has been to use the football player Zlatan Ibrahimovic as a model person for individualism that seams to break the ordinary socialization pattern in Sweden. The purpose of this study is to examine how the team leaders handle the socialization of more individualistic focused individuals/young persons into groups, since the Swedish School Curriculum is designed to meet each individual on his or hers former experiences. Is the socialization of individuals within team sports affected by their cultural background? And, in that case, should those facts have consequences for the sport subject at school? Those are the questions we want to explore. Besides a survey of documents, we have been seeking answers to our questions through interviews with the team leaders Roland Nilsson and Peter Bergander, the pedagogues/teachers Karin Jutterström and Håkan Jensgård and the professional football player Abgar Barson.Our study shows that the leaders and teachers of today have begun to change their view about individualists.

This paper is a study and comparison between the two Wireless LAN (WLAN) standards HiperLAN/2 and IEEE 802.11a. WLANs are used instead or together with ordinary LANs to increase mobility in for example an office. HiperLAN/2 is an European standard developed by ETSI and the IEEEs standard is American. A WLAN-card consists roughly of a Medium Access Control (MAC), Physichal layer (PHY) and an antenna. The antenna is the same for the different standards.

User comments:Availability and Utilization in Online News Affiliated with Local Daily PressAuthor: Susanne AlmgrenSupervisor: Mats EkströmConstituent: Dagspresskollegiet (Annika Bergström/Ingela Wadbring)Course: Term Paper in Media and Communication StudiesTerm: Spring Term 2012Pages/word count: 91 pages / 38 334 wordsObjective: To examine the users availability to the user comment feature and how theusers utilizes the user comment feature in the context of an online news site affiliatedwith local daily press.Method: Mixed methods approach, content analysis and discourse analysisMain result: In this context, three out of four news stories (76.5 percent) has beenallocated with the user comments feature. The highest availability to the user comment feature was found in news themes covering sports and entertainment, followed by financial news. News stories lacking the user comment feature weremainly found in news themes concerning crimes and accidents. The user comment frequencies are not normally distributed along news stories. On the contrary, 62 percent of the news stories did not get any user comments at all.

In conventional viscose manufacturing, a large amount of carbondisulfide is consumed. This amount has to be decreased to keep the production cost down and to reduce the environmental impact. The purpose with this work was to show if an enzyme treatment of a dissolving pulp could increase the degree of substitution in the viscose so that the amount of carbon disulfide consumed in the process could be decreased. Previous investigations by Kvarnlöf (2007), Engström et.al. (2006) and Henriksson et.al.

I den ha?r underso?kningen tittar jag na?rmare pa? hur ordet hen anva?nds i interaktioner pa? Twitter. Jag fra?gar mig i vilka sammanhang och om vem som hen kan anva?ndas i dessa konversationer. Vad tycks gynna eller begra?nsa anva?ndningen av hen? Ha?r a?r jag, fo?rst och fra?mst, intresserad av att se pa? hur olika typer av normer kring ko?n och sexualitet kan ta?nkas pa?verka anva?ndningen, och vilka sa?dana normer som a?r relevanta i konversationerna.Fo?r att go?ra detta anva?nder jag mig av metoden Membership categorization analysis.

At the Department of Technology and Built environment at the University of Gävle there was an interest to study GNU Radio, which is an "open source radio project. The project is based on that most of the radio signal processing is made in an ordinary PC. The idea behind this degree project was that in a laptop there are several radio transmitters/receivers that takes space, generates heat and transmit in varied frequency band etcetera. All these radio transmitters/receivers could be replaced with a Software Defined Radio system. It means that one common, general radio hardware is used to different communications such as: WLAN, Bluetooth, GPRS, 3G etcetera. The waveform is generated in the software, which makes the system very flexible.

There is a need for examining the accessibility of public web sites and for several reasons. First, public organizations possess considerable amounts information of interest to its citizens and which ought to be easily accessible. Secondly, international and national guidelines for web publishing support the different types of requirements experienced by web users and, in particular, with regard to accessibility for people with disabilities. The thesis examines the design of public web sites from two different aspects. Web sites can be built up and structured from the management view of the public organization, or, they can be constructed with a view to user needs and requirements.

It appears from today's debate about the quality of social work and addiction treatment that largely focuses on the impact of recent various interventions in the hope of being able to alter social work's role in society and also the organizational structure. The debate points to a part of the 1970s social welfare debate. Today's aspirations to establish an evidence-based practice can hardly be expected to solve the social services basic dilemmas is that it always have to do something, despite the many times you cannot get clear instructions on which funds should be used by law or science. Even if you follow the rules and practices based on scientific studies should the importance of various key initiatives to remedy deficiencies in social service work with addicts in large part depend on how, in these initiatives define the term "evidence-based practice" and what steps will be indicated for to develop practice. My starting point was to explore how evidence-based social work in connection with medication-assisted treatment for opiate addiction look, which evidence-based interventions Social Services currently uses in connection with medication-assisted treatment for opiate addiction, as well as how to work with it in the ordinary course of business. The study showed that social services have become better at using these methods in recent years and that today there are more tools available than before.

Background: Patients with cervical spinal cord injuries are often dependent on a mechanical ventilator due to the damage on the innervation to breathing musculature. During rehabilitation they have to be trained to regain own breathing. This unweaning process may give respiratory complications, which are main causes to morbidity and death. These respiratory complications are traditionally treated in an intensive care unit (ICU), which means that the patients have to return back to these emergency units.Aim: To investigate number, length and causes of returns to intensive care units and the length of the weaning process. Further, to compare if a multidisciplinary approach to the weaning process may reduce ICU returns and to shorten the weaning process.

The purpose of this study is to analyze how the parties (USA, Great Britain, UN and the European Union) legitimize their intervention in Bosnia-Herzegovina as seen from without the conceptions of sovereignty and intervention. USA and the UN have legitimized their intervention on security reasons. The American president, George W. Bush, claimed that democracies never engage in war with each other and that democracies were prosperous just because they were democracies. According to the president, that is why it is important to democratise the whole Balkan region to protect the international community from terrorism which grows in unstable and undemocratic states.