This report describes the development of a high-voltage connector at the request of Scandinova Systems AB in Uppsala. The development process is described from the making of a customer demand specification, to the making of drawings for the manufacturing of prototypes. Scandinova develops high-voltage modulators, hence the need for connectors that can handle very large power pulses. Their current connector has several weaknesses that may cause the connector to melt or catch fire. The development began with a number of studies that included the modulator structure and the current connector structure and functions.

I arbetet med denna uppsats, har vi undersökt om brandväggar håller vad de lovar och om de i så fall ger full datasäkerhet. Vårt syfte är att, ur hemmaanvändarens perspektiv undersöka vad datasäkerhet innebär, hur hotbilden vid Internet-användning i hemmet ser ut och vad personliga brandväggar kan erbjuda för skydd. För att ta reda på detta gjorde vi följande frågeställningar: Vad är/innebär datasäkerhet? Vad skyddar en brandvägg mot? Vad skyddar brandväggen inte mot? För att besvara våra frågor har vi använt oss av tre metoder; litteraturstudie, test av tre stycken brandväggar och intervjuer med två personer med kunskaper inom datasäkerhet. Vi har med hjälp av metoderna kommit fram till att beroende på att en av de tre undersökta brandväggarna släppte igenom en trojan, trots att denna brandvägg sade sig stoppa sådana, så håller inte alla brandväggar vad de lovar. På grund av många användares omedvetenhet om farorna eller brist på insikt om sin egen utsatthet men även på grund av att hotbilden är så föränderlig, är det svårt, för att inte säga omöjligt att uppnå full datasäkerhet.

Cloud computing is a new buzzword within the IT-industry, and introduces a whole new way of working with IT. The technique delivers web based services, which results in that the user no longer needs to install an application locally on a computer. Since the application no longer needs to run on a local entity, but in a datacenter located on a service provider, the users no longer need any specific hardware more than a computer with an internet connection. Cloud computing also offers IT-infrastructure and development environments as services, these three service types is better known as cloud services. Through the usage of different types of cloud services, the need for maintenance and hardware is significantly reduced.

To design new and high tech products the engineers rely more and more on computer based simulations to investigate the properties and behavior for a component or system.To verify these computer based simulations the dynamic properties for the components of the drivetrain needs to be verified. Therefore measurements of the stiffness and vibrations for the rear axle has been performed. This report show how the measurements has been implemented and evaluated, along with some interesting results for the rear axles properties.The static stiffness for the drive shaft along with the axle-gear has been determined. It is found that the stiffness for the whole rear axle is near the stiffness for the drive shaft, which means that the drive shaft becomes the dominant component of the system and affects the rear axle stiffness the most. The measured stiffness of the driveshaft is close to its theoretical stiffness.The stiffness for solely the hypoid-gear have been calculated using the stiffness for the rear axle and driveshaft, and thus has a range for the stiffness of the hypoid gear been determined.The backlash for the whole rear axle and for some individual components has been determined, where the backlash between pinion and crown-wheel has negligible impact on the total backlash.Measurements of the crown-wheel and pinion movements have been conducted, where the direction of movement is consistent with the theoretical direction of the forces.The vibration measurements show that the vibrations are more severe at certain rotational speeds.

Wavecraft AB develops medical equipment for heating of organic synthesises. The heating is done with microwaves, which improves the process in both speed and accuracy compared to the more traditional methods where heating elements are used. This report discusses the developement of an automatic lid mechanism for one of Wavecraft's product prototypes. The company assumes that the final product will be integrated by customers into fully automated systems, and the upgrade from a manually to an automatically controlled lid is therefore an important step in the product's developement process.The first stage och the project was an idea generation process. The ideas generated here were organized into five different concepts of which the best one was selected through the use of a concept matrix.

Den explosivt ökande mängden information som finns tillgänglig på Internet har även sina avigsidor. Att hitta meningsfull information och kunskap på Internet idag blir allt svårare. Behovet av verktyg som kan hjälpa individer och företag att ta fram värdefull information, speciellt tidskritisk sådan på ett effektivt sätt, är och kommer att bli mycket stort. Likaså kommer behovet av att komma åt denna information, oberoende av tid och plats att vara stort och bli allt större i takt med den ständigt accelererande utvecklingstakten. Vi har försökt att belysa hypotesens komplexitet och visa på det faktum att inte bara en utan många beståndsdelar spelar in vid skapandet av en personanpassad informationsportal. Arbetet har grundat sig på att identifiera de krav som skulle kunna ställas på grundläggande funktioner.

Documentation in electronic journals is perceived as time consuming and sometimes technically difficult to handle, but also leads to an improved quality of care. Objective: The purpose of this study was to investigate nurses' perceptions of documentation with a focus on timing, technique and quality of care and whether any differences in these perceptions were dependent on age. Method: Quantitative descriptive cross-sectional study in the survey form, 28 nurses at a university hospital in central Sweden participated in the study. Regression analysis was performed with Spearman's rank correlation coefficient. Results: Electronic documentation takes 30 to 60 minutes for most nurses and half of them considered it a reasonable time.

Purpose/aim: The purpose is to get increased knowledge about how the communication had developed from the first contact online to the first meeting in real life and even after when it had turned into a real relationship. I also wanted to know why the eight women I interviewed experienced that the Internet is a good venue to meet and develop a real relationship at and if there existed any differences between those four women who were a bit older and those four women who were young.Material/method: When the purpose with this survey stood clear I decided to use interviews as the method to find out more about my subject. I decided to do eight interviews and I contacted eight women who all found their partners online that were willing to help me and answer my interview questions. I did six of the total eight interviews through MSN Messenger and the other two through the telephone.Main results: I found out that three of the older women had used e-mail and telephone and sometimes SMS communication to find out more about their soon to be partner and after that decided to meet the other person in real life. One of the older women and all four of the younger ones had used a Community and Instant Messenger to communicate with their soon to be partner, they also used the telephone and SMS to communicate with each other but Instant Messenger was the medium that dominated in their wish to communicate.

Syftet med denna uppsats är att göra en undersökning om vilka faktorer som påverkar användares närvarokänsla första gången de använder sig av en inneslutande virtuell miljö. De inneslutande VR tekniker vi har valt att fokusera på är Computer Automatic Virtual Environment (Cave) och Head Mounted Display (HMD).Forskaren Carrie Heeter beskriver tre typer av närvaro och forskarna Wallace Sadowski och Kay Stanney räknar upp faktorer som de påstår påverkar användarens närvarokänsla.Vår frågeställning är vilka likheter eller skillnader det finns mellan våra testpersoners svar och Sadowski och Stanneys faktorer. Vi intervjuade och genomförde ett test med tre testpersoner i en Computer Automatic Virtual Environment baserat på två program. Vi valde även att intervjua två experter om vilka faktorer de ansåg påverkade deras närvarokänsla första gången de använde sig av en HMD.Första programmet som testpersonerna fick pröva på var Cuevadefuego som bestod av tredimensionella bilder till skillnad från det andra programmet, Crayoland, som bestod av tvådimensionella bilder. Intervjufrågorna till testpersonerna och experterna baserades på frågor som handlade om experternas och testpersonernas reaktioner och intryck relaterat till deras närvarokänsla och vad de trodde det var som påverkade deras närvarokänsla.Resultatet av intervjuerna och testet är att det finns likheter mellan de faktorer som testpersonerna anser påverkar deras närvarokänsla och med Sadowski och Stanneys faktorer men inga direkta skillnader..

The relational database model was defined in the 1970?s and is the dominating database type today.  The main difference between data from a relational database and a hierarchical data structure is that the relational database stores records in tables. The records have no particular order, but can include links in terms of relationships with other records. A hierarchical structure organizes data in the form of a tree structure  and  can for an example be found in organizational structures in which different levels involves different responsibilities. If the data stored in a relational database is to be presented in a hierarchically, a conversion of the data structure is required. The intention of this paper is to describe how such a conversion can be performed.  To investigate the conversion methods, case studies has been conducted on the basis of a specific organization?s hierarchical structure.

Abstract In this report I describe the Health Care Advice Bureau?s (sjukvårdsrådgivningen) historical background, proposals for its development according to a committee from the Blekinge County Council (Landstinget Blekinge), the Health Care Advice Bureau?s cooperation with different external operators e.g. the SOS and the Care Centers [Vårdcentraler]. I account for how I, in the same county council, aided by ethnographical methods observed or investigated the following: The nurses? interaction with the patients, the nurses? interaction among themselves, the nurses? participation in the development of the system and also the computer based system?s technical qualifications.

This thesis is about adware, which is very popular today. The adwares are used to, among other things, down- and upload files from other users on the Internet. One thing that most users of such programs are not aware of is that many of the adwares contain spyware. These spywares install themselves simultaneously with the adwares. Two of the spyware features is to generate pop-ups in the web browser and to direct advertisment from the users web habits.

In recent years the development of mobile devices has made great progress and today they account for a large proportion of the internet usage. This trend poses new demands on web developers as more companies and product owners want to customize their services and products for this new market. In this study we examine the pros and cons of the strategies desktop-first and mobile-first in the development of adaptive interfaces for the web. The study aims to create guidelines for situations in which each strategy fits well. The purpose of the study is to create an understanding of how these strategies can help developers and product owners to develop adaptive interfaces based on different goals and objectives.

The report contains a comparison between computer based modeling of evacuation and evacuation experiments with large crowds. Crowd movement, behavior and management is examined, as well as the evacuation time. The conclusions in this report are based on observations made during the evacuation of a football ground (Swedish)..

There are several methods and models within the areas of software engineering on how to proceed during a software development process. For each of these methods and models there are benefits and drawbacks, depending on how you choose to look at them. A difference of principle between the different models is that they either advocate iterative development or not. In parts of software engineering one makes use of different methods depending on which is most fitting in a specific situation. There are several methods on how to recieve more qualitative data from the end-users during the requirement collection, but the reappearing pattern is still user centric participation, which means that the user participates more actively in part of or the entire development process.