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1566 Uppsatser om Dam safety uplift concrete dams buttress dams horizontal joints - Sida 52 av 105

Hybriddrift i stridsfordon, fördelar och nackdelar

Petro-electric IFVs (Infantry fighting vehicles) or hybrid-IFV?s are not a new phenomenon. During the 1900?s Germany as well as the U.S both tested vehicles constructed with hybrid technology. In spite of several identified advantages, no serving hybrid-IFV exists today.

Lärare på distans! : Lärares upplevelser av möjligheter och svårigheter med distansundervisning

The purpose of this essay is to show the opportunities and difficulties of teaching within distance education. I will show this from two different parts of the world. One being Sweden and the other Australia, both countries run a distance education program with similar reasons students whom travelling, some living hundreds of miles from any schools and some students with health and or social disadvantages. This study is based on the actual teacher?s accounts and experiences the opportunities and difficulties in teaching in distance.

Logistic evaluation of internationally purchased concrete frames : Logistisk utvärdering av internationellt köpt betongstomme

Denna examensrapport är gjord på uppdrag av NCC framtagen som en logistisk utvärdering, inriktad på leverans och montage av betongstommen till utbyggnationen av Hageby Centrum i Norrköping.Det speciella med projektet i Hageby Centrum är att NCC vänt sig till en utländsk leverantör av betongstomme istället för en inhemsk leverantör. Detta får stora logistiska konsekvenser eftersom det är så stor volym av prefabricerade betongelement, och att planera in närmare 900 lastbilsleveranser från Lettland till Sverige är omöjligt. Istället har NCC valt det relativt oprövade alternativet att skeppa betongelementen med båt. Även detta medför problem då betongelementen inte kan levereras direkt på grund av utrymmesskäl på byggplatsen, vilket gör att de först måste lagerhållas i Norrköpings hamn fram till dess att det är dags för montering.Resultatet av rapporten redovisar vad uppkomna problem för projektet beror på. Rapporten kan även vara till hjälp för framtida projekt då det kan vara aktuellt att återigen vända sig till en utländsk leverantör.

Sandfångaren : En undersökning av mötet mellan en byggd struktur och ett landskap i förändring

The Sand Catcher                                                       The thesis project The Sand Catcher investigates the encounter between permanent structures and an ever-changing landscape. The migrating sand dune Råbjerg Mile in northern Denmark is 40 meters high and moves more than 15 meters every year. By introducing a solid structure on the site, the fast movement of the sand dune is emphasised and thereby our view of time and space.Through intuitively building models with varied openings and densities I investigated how architectural elements react with sand. From these experiments a series of spatial features and effects were found, generated from the meeting with the sand.The Sand Catcher is a solid and permanent structure. The sand is the liquid element that generates new spaces, circulations and experiences.

Glastaket : ett bärande klimatskal

This candidate.?s work includes designing of a house with it.?s structural components andinstallations. The house had to be actual with Building Regulations (Boverkets Byggregler).Beside designing of all the crucial systems necessary for completing of claimed regulations evenan optional topic within building engineering had to be chosen.The task included designing of heating, ventilation, sanitation and electricity systems. Structuralengineering models has been made in compliance with Eurocodes. Materials for facades, floorsand roof were chosen and evaluated.As recessed portion of the work, evaluating of possibilities in designing of a glass roof waschosen.

Förekomst & kostnad av kapsprickor i stormaskadad skog

The aim for this study where to investigate the frequency of cutting cracks in saw timber harvested in the storm-damaged forests in regions where the storms Hilde and Ivar hit. The idea for this work came from one of the region?s biggest actors, SCA Skog and Jämtlands district. The purpose where to find out how big proportion of the saw timber that contains cutting cracks, their financial cost in lost wood value and also give advice and suggestions on how to work against the frequency of cutting cracks. For the field-study some guidelines where used to make sure that the samples were taken under the same conditions, they were: ? The field-study must be performed under harvesting of storm-felled forest, which are horizontal/inclined trunks. ? The averaged sized tree will make it possible to harvest saw timber. ? The trunks can?t be root cut. A methodology called in Swedish ?Trissmetoden? was used because it is the most frequent used methodology in earlier performed studies and the only one that can be used I field. Under the field-study data were collected from 570 saw timber logs, 30 logs from each one of the tested harvesters.

Safire : Unik brandvarnare med smart design för ökad säkerhet

Can you ensure that your smoke detector will sense fire and sound the alarm in the middle of the night?In 80 percent of the cases where emergency pulls out, smoke detectors are missing where the fire occurred. In the year of 2009, 118 people in Sweden died in fires ? most of them would have survived if there had been a functioning smoke detector.Earlier development of smoke detectors has mainly been focusing on components that sense smoke and alert in case of fire. But in most cases the problem has not been whether the smoke detector was working or not as fully assembled, but rather that it was missing.

Vem är normal?

My project is about attitudes towards disabled people, about our fear for those who are different, about acceptance, ideals and normality.My inspiration has been prosthesis, and mostly people that are born without limbs. Through my research I have come across a lot of questions. Such as, why is a prosthesis so important and for whom? Why is it so important to be normal? What is normal and for who? People that are born different se upon themselves as normal, until they realize that others don?t. Many of them want to learn how to deal with life without prosthesis. And therefore they reject these. Sometimes the prosthesis is aids that are highly necessary.

?Jag är inte kurator, psykolog eller pappa till alla barn, jag är inte bilmekaniker heller? : En studie om idrottslärares yrkesetiska dilemman

AimThe compulsory school attendance in Sweden means that all children are obligated to go to school. This makes great demands on those who work in the school, especially the teachers. Schools are complex units. In school, teachers face all kinds of ethical dilemmas on a daily basis. The aim of the study is to enlighten how different teachers would act differently, if they were facing the same dilemma in the PE-lessons and why this knowledge is important to our profession.MethodThe data was collected through interviews to make a qualitative research.

  Uppföljning av nyckeltal för större bro- och betongtunnelentreprenader :   Nyckeltal tänkta att användas för att kvalitetssäkra anbudsarbete

Uppdragsgivare för detta examensarbete är Skanska Sverige AB Region Stora Projekt, som arbetar med stora bro- och anläggningsprojekt. Störst behov ligger i att få ökad kunskap om de Allmännai projekten. Arbetet med anbudskalkyler innebär att förutse projektkostnader och kostnaderna Allmänna kostnader utgör en betydande del av projektets totalkostnad och är svårkalkylerade. Generellt uttryckt utgör denna post de byggkostnader som används gemensamt i projektet. Nyckeltal komprimerar information i syfte att göra den mer lättillgänglig för användaren.Syftet med denna rapport är att få fram nyckeltal tänkta att i första hand användas till att kvalitetssäkra kommande anbudsarbeten.Det material och data som rapporten baseras på är intern information om referensprojekten och slutrapporter.För två av resurserna kan nyckeltal presenteras, samma gäller för en tredje baserat på att referensprojekten har liknande utförande.

Varför överlåter medlemsstaterna makt åt EU? : En fallstudie om utvecklandet av en gemensam asyl- och flyktingpolitik inom EU.

The aim of this study is to explain the paradox of the memberstates willingness to surrender power of important issues such as asylum and refugee policy and therefore partly abandon its sovereignty. We also discuss the relation between internationalization, regionalization and globalization since these processes form the context in which our research problem is found. A case study is used as a method in this paper.In our quest for answers we use a theory of internationalization that we place in its context by primarily discussing the relation between globalization and regionalization. The theory is used as an explanatory force and to give it a concrete form we operationalised its three processes; internationalization of problems, internationalization of the societies and internationalization of the descisionmaking.The result of the case study shows that the increase in asylumseekers leads to a higher risk of negative competition wich give rise to the memberstates need to coordinate their politics.We found that when societies and problems are being internationalized, the state finds it difficult to resolve problems on their own and this leads to the internationalization of the dedescisionmaking. The internationalization of the decision-making process is therefore natural, which in this case means the decisions are taken by the EU rather than by the member states..

Testbänk för luftlager

Test bench for air bearingsThis thesis work consisted of bringing forward and defining the test parameters relevant for a test bench and constructing a test bench that can test and verify the largest existing air bearings that are of use in Micronic Laser Systems AB machines. Because the knowledge about air bearings is limited it is thought that with the help of the test bench the knowledge would increase and in that way improve the air bearings.After learning more about air bearings and their purpose at Micronic Laser Systems AB, I started the concept phase for the test bench. For each part in the test bench I consulted my two tutors, Torbjörn Hedevärn and Johan Bergqvist, at Micronic Laser Systems AB. The final concepts where documented as 3D-modells in Solidworks and some of them have been tested in Solidworks FEM-program.The test bench is designed so that, with the help of a pneumatic cylinder, 25 kilo weights are placed on the air bearing to test its stiffness, damping and the pressure performance under its surface area. To test these parameters the test bench has to have a pressure meter, accelerometer and a microcator.

Hastighetsreduktion på genomfartsleder, genom icke-tvingande åtgärder i vägmiljön

The study was conducted with an landscape approach with an subject related approach in the field of environmental psychology to investigate how road design affects drivers' choice of speed. The purpose was to portray road environments on thoroughfares in urban areas to motivate motorists to keep the speed limit and thus increase road safety for vulnerable road users. The task question was formulated, how can thoroughfares in suburban settings be portrayed to motivate motorists to reduce speed? The study was conducted throughout a literature review of motivational speed measures along with interviews with road design experts at the Swedish Transport Administration. Case studies were conducted on three thoroughfares in the Stockholm suburbs Vallentuna, Upplands Väsby and Danderyd.

En studie av höghusbyggande med avseende på stomsystem och lastpåverkan

Vi har valt att undersöka vilka möjligheter och eventuella risker det finns att bygga högt i Stockholm. Undersökningen utgick på att jämföra olika byggtekniska lösningar för stomsystem. Hur tar stomsystemen hand om vertikala och horisontella laster? Vilket stomsystemen är lämpligast vid en viss höjd? Dessa är några av de frågor som besvaras i arbetet.De vertikala och horisontella lasterna är de faktorer som främst försvårar höghusbyggandet. Med en större belastning av laster ju högre det byggs måste stomsystemen dimensioneras med allt större noggrannhet för att lasterna ska nedföras till grundläggningen på ett säkert sätt.

Brikettillverkning på gårdsnivå :

In my work I have chosen to examine the profitability for small scale production of hemp briquettes. My study also includes a review of which briquette technique that is the most common one among small scale producers. The reason that I have chosen this subject is because of the discussions about climate and energy that we face almost every day. I also think the subject is extra interesting in these days when the grain prizes are at a historic high level. In order for me to achieve a reliable report, a hemp and briquette producer has given me the actual data from his farm. In that way I have been able to make my calculations from a concrete perspective.

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