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2182 Uppsatser om Hydropower reservoirs; dam safety; erosion protection; waves; simulation; MIKE 21 Spectral Wave - Sida 32 av 146
Identifiering av deponerat material i en deponi samt metodikförslag för upprättande av vattenbalans.
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.
Tillförlitligheten i beräknade dimensionerande flöden i två mindre vattendrag med trånga sektioner
I Sverige finns idag en vedertagen metod för att bestämma dimensionerande flöde för dammanläggningar. De teoretiska beräkningarna av dimensionerande flöde för dammanläggningar tillhörande flödesdimensioneringsklass I baseras på HBV-modellen, en begreppsmässig hydrologisk beräkningsmodell som beskriver samspelet mellan de meteorologiska och hydrologiska förhållanden som råder inom ett avrinningsområde. Begreppsmässiga hydrologiska modeller baseras på vattenbalansen och används för att bestämma tillrinning till vattendrag, sjöar eller andra vattenförekomster. Vid hydrologisk modellering med begreppsmässiga modeller tas ingen explicit hänsyn till vattendragets geometri. Trånga sektioner i naturliga vattendrag kan hindra vattnets framfart och orsaka dämning uppströms den trånga sektionen.
En undersökning i datasäkerhet för hemanvändare - Är det nödvändigt att använda brandvägg?
The emphasize of this study is to evaluate security issues for home users
having a personal computer connected to the Internet. It focus on the usage of
advantages and disadvantages when using a firewall while connected to the
Internet.
The hypothesis is that it gives a better protection to install and use a
firewall compared not to do so, due to security flaws in the operating system.
The prediction was tested on a home user's personal computer. The testwork was
divided into two major tests, each of them performed with, respectively
without, a firewall. These major tests were divided into five smaller semi
tests. The first semitest without a firewall suffered from a virus or worm
attack resulting in loss of data and log files.
En undersökning i datasäkerhet för hemanvändare : Är det nödvändigt att använda brandvägg?
The emphasize of this study is to evaluate security issues for home users having a personal computer connected to the Internet. It focus on the usage of advantages and disadvantages when using a firewall while connected to the Internet. The hypothesis is that it gives a better protection to install and use a firewall compared not to do so, due to security flaws in the operating system. The prediction was tested on a home user's personal computer. The testwork was divided into two major tests, each of them performed with, respectively without, a firewall.
Kapitalstruktur- likheter och olikheter mellan tre branscher
I studien kom vi fram till att kapitalstrukturen inte alltid är uppbyggd på ett likartat sätt.Utifrån de valda förtagen i IT branschen påvisas det att kapitalstrukturen inte är utformad på samma viss. Tjänsteföretagen påvisar en likartad kapitalstruktur med avvikelse från företaget New Wave. Däremot i Industri branschen var kapitalstrukturen utformad på en likartad modell..
Feldiagnos för RM12 baserad på identifierade modeller
The jetengines of today are growing in complexity. Reliability for aircraft engines are of extreme importance, mainly due to safety reasons but also economical ones. This master thesis deals with faultdiagnosis in the turbine section of RM12, the engine used in Saab/BAe's Gripen. Three different faults which can occur in the turbine section was studied. These faults are: clogged fuel nozzle, hole in outlet guide vane and sensor fault.
Modellering av avloppspumpstationer : En modelloptimering och känslighetsanalys av pumpstationer i Uppsala och Västervik
För att utreda ärenden kopplade till bräddning och källaröversvämningar blir det allt vanligare att använda hydraulisk modellering. I hydrauliska modeller ingår flera olika beståndsdelar,bland annat ledningar, brunnar, bräddavlopp och pumpstationer. Pumpstationer är en beståndsdel som är ganska komplex att beskriva i dessa modeller och att ta fram den relativt stora mängd indata som krävs för att beskriva modellparametrarna kan vara mycket tidskrävande. Genom att veta vilka modellparametrar i pumpstationer som har störst betydelse för modellberäkningarna skulle mer vikt kunna läggas vid att beskriva dessa och därmed skulle modelleringen kunna bli mer tidseffektiv och beräkningsresultatet bli bättre kvalitetsmässigt. En modellparameter som tros vara av stor betydelse för modellberäkningarna är pumpkapacitet.
Människa ? Teknik ? Organisation ur ett utredningsperspektiv : En intervjustudie av medarbetare vid Statens haverikommission
Human - Technology - Organization (HTO) is a well-established, general unifying concept in the Swedish Accident Investigation Authority (SHK) that represents an approach, knowledge and use of various tools regarding interactions between people, technology and organizational factors. The HTO-perspective is well described in literature but there are few studies on how SHKs staff experiences working according to this method in their investigations. The aim of this study was therefore to describe their HTO-perspective, examine how it is used in the investigations at SHK and describe the investigators experience of working with the HTO-perspective as well as the method's usefulness compared to old methods in accident investigations. A literature study has been conducted in the areas of HTO, Theory of planned behavior (TPB) and safety culture. TPB and safety culture are described in this paper since they highlight the different aspects of a HTO-perspective.
Definitionsproblem i sexualbrottslagen : -bristen i definieringen av begreppet vuxen
AbstractThe ideas of adulthood, adolescence and childhood in Swedish law have a tendency to not be expressed or discussed. This thesis has focused on the preparatory work of the sexual offence-law to see whether it defines adulthood. This has been achieved by analyzing the documents related to this preparatory work. The thesis focused on two central questions: 1) Was the idea of adulthood an integral part of the discussions in the preparatory work 2) If so, then how was it defined and are there any contradictions in the definition. In addition, this work also evaluated the impact of this law and investigated whether the absolute protection intended by the government and the committee of sexual crime seek actually exists.The study shows that the concept of adulthood was not defined specifically in the preparatory work.
Vad bör sägas? - en begreppsanalys av förändringar i synen på yttrandefrihet
This essay intends to investigate the view on freedom of speech in Sweden. The expanding of the hate crime law rises the question if there is a current changing view on freedom of speech. By comparing motions concerning an expanding of the hate crime law from different periods, I am able to conclude if and how the view on the term freedom of speech has taken place. This is done in a descriptive analysis of terms, where the different values and arguments for a change is compared. The material is taken from the period 1991-1993 and 2000-2001.
Framtagning av typgodkända formkonstruktioner : Med inriktning mot traditionell väggform
This diploma work was conducted in collaboration with the Swedish civil engineeringconstruction company Skanska Construction in Stockholm. Their interest is todevelop a number of type approved form constructions which can be used during theconstruction of concrete walls. Skanska focuses on improving safety on their projectsand both supervisors and workers have a need for approved form constructions inthe current situation.The study is focused on safety and the purpose is to facilitate the preparation beforethe form work can begin. By studying the literature of the subject and conductinterviews with employees at Skanska Construction, the understanding of the issueand knowledge will be increased.Literature studies, interviews together with production and design have been thebasis for a successful study. The work has resulted in three types of approved formconstructions to Skanska Construction and the drawings can be used of employees atthe company.
Strömningsmodell över Laxede kraftsstation
Vi har genomfört en undersökning av den okända effektförbrukningen på Älvenäs industrihotell Pescator AB. Sedan de ändrade elförsörjningen till industrihotellet och börjat mäta upp olika lokaler har de upptäcktatt det finns ett stort mörkertal i deras förbrukning. Undersökningen genomfördes dels genom att vi mätte med tångamperemeter och dels genom okulär inspektion där vi gick igenom deras ställverk och centraler. Vifann en mängd områden där det inte fanns mätare men som helt tydligt tillhörde det som måste mätas upp. Bland annat så upptäcktes det att belysningen på ett flertal ställen inte mäts upp..
Samtal om sexualitet : En studie om socialsekreterares upplevelser och reflektioner kring att samtala om sexualitet med ungdomar som är föremål för utredning
This essay reflects on the thoughts and experiences of social workers in child protection agencies when it comes to talking about sexuality with teenagers, age 13-20, who is being subjected to inquiry. The research is qualitative and based on five semi-structured interviews. It has a phenomenological position and has been analyzed hermeneutically through cognitive and gender theory. Previous research shows that youths who get in contact with child protection often have issues about their sexuality. This study show that social workers in the agencies lack knowledge about this issue and that they seldom talks about it with the teenagers or their own colleagues.
Äga eller leasa lagret i ett mindre handelsföretag?
Small companies have fewer resources which often result in an tendency to disregard administrative tasks. A factor that influences the company?s revenues is the control of its inventories. The purpose of the current study was to analyze which of the two options, leasing or owning your inventory, that could be justified from an economical perspective. Furthermore, the purpose was to describe the optimal inventory level for each option. To meet these objectives representatives for the company was interviewed and a thorough investigation process was undertaken, during which methodological problems were solved. It was found that leasing the inventory was the most expensive option for the company. Analysis demonstrated that optimal turnover inventory according to EOQ (Economic Order Quantity) would amount to 65,0 thousand Swedish Krona if the company leases their inventory in comparison to 56,0 thousand Swedish Krona if the company owned their inventory.
Turordningsreglerna : En studie avturordningsreglerna vid en verksamhetsövergång i Karlstad
Metso Paper in Karlstad is acquiring Kvaerner Pulping and Kvaerner Kamfab, also located in Karlstad. Following this acquisition, there are going to be changes in the organizational structure and some employees might even loose their jobs. There are guidelines from the European Union how to handle situations like this, the purpose of these are to protect the employees. There are also Swedish laws that regulate the protection of the employees when a company is acquired, who is going to keep their job and who is to be made redundant.The transaction between the companies is large why they need an approval from the European Union. The European Union has certain demands for the approval.