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1783 Uppsatser om Mechanical engineering - structural dynamics - Sida 59 av 119
Lärande med Teknik : Användning (och Icke-användning) av IT i Skolan
For a long period of time there have been discussions about the need to modernize, to keep up with the changes in our society. The schools as a result have to keep up and adapt in order for the education to be up-to-date. This includes the technological developments. Many steps have been taken and mighty sums have been invested in order to keep up the pace ? but are there any consequences from these kinds of investments? In this report I?m going to take a closer look on a recent addition to this phenomenon that were installed by means of a top-down approach and study the teachers and how they have adapted and view the change in their environment ? namely the newly installed interactive writing-boards.The questions I will study include how the teachers express their view about the installation of the interactive writing-boards.
Fysikalisk modellering av klimat i entreprenadmaskin
This masters thesis concerns a modeling project performed at Volvo Technology in Gothenburg, Sweden. The main purpose of the project has been to develop a physical model of the climate in construction vehicles that later on can be used in the development of an electronic climate controller. The focus of the work has been on one type of wheel loader and one type of excavator. The temperature inside the compartment has been set equal to the notion climate. With physical theories about air flow and heat transfer in respect, relations between the components in the climate unit and the compartment has been calculated.
EU-migranters livssituation i det svenska samhället : En kvalitativ studie bland besökare på verksamheten Crossroads
The purpose of this study is to examine how EU-migrants visiting the social project Crossroads experience their life situation in the Swedish society. Two questions were formulated: (1) How do the respondents describe their situation when it comes to work, housing and social network? (2) How do the interviewees describe and experience the social project Crossroads? The method used was qualitative interviews conducted with five EU-migrants who visited Crossroads. The theoretical framework is the concept of integration and Bauböcks (1996) theoretical model of the ideal society. The results show that none of the interviewees had their own accommodation.
"Vi är hiphop!" : En kvalitativ undersökning om Femtastic
Female musicians and actors are being disadvanteged in the music industry, because of standards that prevents women from participating on equal terms. Unequal distribution of resources and status depends on power structures which creates an hierarchy. This study is about how an organization, Femtastic, works for equality and diversity in the field of music, how they experience their positions and their possibilities. Also how they relate to the cultural policy objectives. Femtastic is trying to create a structural change in the male-dominated music industry.
Givarkonstruktion för beräkning av sådjup
This report shows the process of the development of a sensor module for the seed drills of Väderstad Verken AB. The module is supposed to replace existing solutions, provided that it is better from both a constructional- and an economical aspect. The purpose of the sensor is to continuously give the driver information about the level of height of the front- and drilling tools and the main purpose of the sensor is to allow the seeds to be placed at the desired depth. The sensors which have been taken into consideration have all been of an analogue type and have a protection class of minimum IP67.The methods applied have been taken from the book ?The Mechanical Design Process? by David G.
Marching Cubes med Deferred Rendering motor
Spel idag kräver en enorm mängd arbetstimmar för att skapas, därför behövs
alltid sätt att spara
tid och automatisera processer. Algoritmer för polygoniseringen av skalärfält,
som Marching
Cubes, har under de senaste åren blivit ett allt vanligare tillvägagångssätt
för att automatiskt
generera terräng.
Scenkomplexiteten och kraven för visuell kvalitet i dagens spel ökar ständigt.
Därmed kommer
också kravet för prestandaeffektiva renderingsmetoder. Deferred rendering är en
renderingsmetod som kan hantera scener med stora mängder ljuskällor och hög
scenkomplexitet
samtidigt.
För att undersöka integreringen mellan procedurellt skapad terräng och en
deferred rendering
pipeline, skapades en applikation i DirectX 11 för att undersöka
implementeringen och
potentiella optimeringar av denna integration..
UTVECKLING AV EXKLUSIV KLÄDKAMMARE OCH FÖRVARINGSLÖSNING FÖR PRIVATHEM
Designingenjörsstudenten Matilda Kälström har på Tibroköks uppdrag utvecklat ett sortiment för walk-in-closets där målgruppen för projektet är företagets befintliga kundkrets. Under projektets gång har en grundläggande förstudie gjorts för att bland annat ta reda på projektets förutsättningar, kartlägga konkurrenter och ta reda på vad kunder har för krav och önskemål. Exempel på krav och önskemål från kundernas sida var att produkten skall ge en överblick över innehållet och samla all klädvård på ett gemensamt ställe. En litteraturstudie gjordes där det lästes om förvaring, människans relation till hemmet och om arkitektur. Information som framkom var bland annat att det är väldigt viktigt för människan att kunna utforma sitt hem efter egna behov och en bra riktlinje att strukturera förvaring på är efter var på kroppen kläderna används.En central del i projektet är Kansei Engineering, vilket är ett koncept för att koppla människor uppfattningar till produkters utformning.
Problembilder av ungdomars politiska utanförskap - En studie av projektet ?Demokrati för alla?
Aims: The aim of this study is to describe how youth?s political exclusion is constructed as asocial problem. This is done through a study of a project which aim is to engage young peoplein politics.Method and theory: By interviewing the project?s manager and developer as well as eightparticipating young people different constructions of the problem of youth political exclusionhas been analyzed using the social constructionist perspective on social problems.Findings: The dominant perspective found in the empirical material includes framing youngpeople?s lack of political knowledge and self-confidence as the reason for their politicalexclusion. Even though the Youth Board (ungdomsstyrelsen) in Sweden officially views allyoung people as a resource, when youth politics are implemented through projects, this is notthe view that young people meet.
Lämplig som pilot? : En uppsats om lämplighetsprövning och rekrytering av piloter.
För att kunna bli pilot i kommersiell luftfart är första steget att utbilda sig. En pilotutbildning måste föregås av en medicinsk undersökning för att garantera en tillräckligt god fysisk hälsa hos den blivande piloten. Många utbildare kräver också att en person som vill utbilda sig till pilot genomgår en psykologisk lämplighetsprövning, i syfte att få en indikation på dennes personliga förutsättningar i övrigt för en lyckad utbildning och karriär inom pilotyrket. När utbildningen är genomförd är piloten redo för att se sig om efter arbete men den senaste tidens allmänna nedgång i flygbranschen har gjort det allt svårare för piloter att få anställning. Detta arbete har syftat till att ge en inblick i bakgrunden till den typ av lämplighetsprövning som genomförs inför utbildning, hur sådana prövningar värderas av arbetsgivare i branschen samt vad som i övrigt enligt arbetsgivare avgör om en pilot är aktuell för anställning..
Separeringsmodul
In cooperation with the Gislaved company Lerocon AB [1], a separation module wasdesigned as a further supplement to the Module System. The aim of theprojectimplementation was that the separation module could be flexible enough to feed themetal pieces, screws, nuts and other items with large variations of size, appearance andmaterial composition. The module should also be cost effective to manufacture.A separation module is a design which is ment to streamline the work in industries withautomation of the lineoperations. The module feeds the details such as screws, nuts, washersand pieces of metal in a continuous flow in which traps separate the details from each other.Traps may vary depending on the purpose and of the details that are fed. Perhaps it isimportant for the user that the detail-orientation is right after the separation module, whichmeans that all the pieces witch aren´t are fed back in return.For companies and industries in lineoperations that can be made more efficient withautomation, are production flow an important watchword.
När de blir vi: institutioner, governance och förändring i Öresundskomiteen
In January 2007 the Öresund committy changed its statutes to become a more politically oriented lobby organization. This change can be interpreted as one part of a continuously evolving process where the Öresund region is emancipating itself from the national states in a multi-level European environment. By focusing on this latest development the thesis puts forward the importance of political institutions, as well as politicians and civil servants as actors in them, as crucial factors in the process where the region is gaining political power. The thesis shows how the political cross-border cooperation in the Öresund region is being institutionalized which affects its power relations to other levels in the multi-level system, predominantly the national states. In other words, there is a connection between power and institutionalization.The Öresund committee has by gaining better access to policymaking agendas on the national levels proven that the organizational change has already started to bear fruit.
Transition till demokrati: strukturella faktorers påverkan i de begränsade flerpartisystemen Kenya och Tanzania
This paper deals with institutional and structural factors' influence on democratic transition in limited multiparty regimes in Sub-Saharan Africa. Comparing the cases Kenya and Tanzania, of which the former has made a transition to democracy and the latter has not, this paper reaches the conclusion that political traditions, the coalescing of the opposition, and the elites ability to learn from the electoral process is essential for a transition to democracy. In the specific cases, the harshness of the Moi regime and the Tanzanian vision of national unity may possibly carry some explanatory power, alongside the pressure from international actors.These results have been reached through the application of a comparative case study, where democratic transition constitutes the dependent variable. It should be noted that a harsh definition of the term transition has been applied, according to which the incumbents actual loss of an election is a necessary indicator for transition. However, the Freedom House and Polity scores have been brought up as complement of this definition.
Provmetod för olje- och partikelöverdrag från kompressor till tryckluftssystem
Compressed air is an energy source that is widely used in today's trucks and buses.Compressor located next to the engine supplies the pneumatic system with the compressed air and is lubricated with the engine oil. Some of the oil follows the air flow in both liquid and solid phase. The solid phase, namely the carbon particles are created due to the high temperature in the compression chamber.Oil- and particles carryover softens and destroys the rubber material in the air valves and disturbs the mechanical function of various components in the pneumatic system. In order to reduce oil- and particles carryover is an Air Processing System (APS) set downstream the compressor.No method for establishment of oil- and particles carryover from the compressor exists at the moment. Therefore the filtration efficiency of APS is currently unknown.
Simhall i Viskafors
Today, the catering personnel are an essential part of the safety organization on board Swedish passenger vessels in ferry services. Their responsibilities for the safety on board have increased in connection with the changes in regulations made on the shipping industry. These changes have been mostly related to human factors and structural leadership in the last 25 years.A well-functioning safety organization requires competence and commitment from every individual. Previous researches on Swedish passenger ferries concerning the safety organization have raised issues regarding the catering personnel?s perception of the safety on board.
Påverkas mosippa (Pulsatilla vernalis) negativt av igenväxning?
Pulsatilla vernalis is one of several endangered plant species that benefit from wildfires and small scale disturbance events that repel competing vegetation and create open patches in the vegetation cover. Previous studies argue that Pulsatilla vernalis is decreasing in numbers due to vegetation changes associated with the decrease in wildfires, forest grazing and changes in forest management. In this study, 17 populations of P. vernalis were inventoried in order to examine if soil and/or vegetation structures affect the population structure of P. vernalis (i.e.