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Befintliga energisystem för småhus

We have in our thesis examined energy system for small houses for Skanska Teknik AB. The environment is a current issue in our society and buildings from the past are rarely energy effective, since many houses built during the seventies had heating based on oil or direct electricity. In new buildings it is more and more important to be energy efficient, to meet the demands from our future environm

Den egna ingenjören

The independent engineer In the current financial crises, a vacant job is an article in short supply. Good competence and academic titles are no longer a guarantee to receive an employment after examination. These circumstances require a capacity to see opportunities outside the box. When the labor market no longer can offer any jobs, there is two alternatives. Await an opportunity or create an op

Järnvägsprojektering – analys av tekniska gränssnitt och samordning

Railway detail planning is divided in seven major technical branches; ground works, track, power supply, catenary, signalling, telecommunication and cable-trenching. Technical consultants perform detail planning at the request of a client, usually the Swedish Rail Administration (Banverket). The work results in design and other technical documents. According to common public opinion the quality in

Comparing Apples & Oranges - A Life Cycle Perspective on Energy Requirements in Swedish & British Columbian Building Codes

“Comparing Apples & Oranges – A Life Cycle Perspective on the Energy Requirements in Swedish and British Columbian Building Codes” The requirements to decrease the energy use in a building vary in the building codes. “British Columbia Building Code” (BCBC) prescribes a nominal thermal resistance of insulation, while “Boverket’s Building Regulations” (BBR) requires an annual specific energy use

Bodetableringar - en fallstudie av standard och elförbrukning

Bodar förbrukar mycket energi, varav en ansenlig del skulle vara möjligt att spara. Det finns regler och lagkrav som måste vara uppfyllda. Specificeringen av hur mycket energi det skulle vara möjligt att spara samt undersökningen av hur väl efterlevda lagarna är, utgör denna rapports syfte. Metoden som har använts är främst litteraturstudier och e-postutväxling med platschefer. Rapporten behandlar

Förekomst av mjölksyrabakterier på ölbryggeri

Presence of lactic acid bacteria on a beer brewery The purpose of this thesis is to help a brewery solve a mayor problem regarding the quality of their product. The brewery has for a considerable amount of time had a problem with the presence of lactic acid bacteria in their product, which has caused it to acid long before the expiration date has passed. The root of the problem could be establishe

Effektivisering av byggarbetsplatser

NCC’s main objective is to reduce their production costs by 5 % each year until 2012. Taking this into consideration, studies have been made to investigate the efficiency on today’s construction sites. There are certainly a considerable number of factors that contribute to today’s inefficiency on the construction sites. Our main objective with this report is to locate these factors, investigate th

SCAM (Secure Compression Algorithm for Multimedia)

Denna rapport har som uppgift att gå igenom hur den nya krypterings och komprimeringsalgoritmen SCAM har utvecklats. Kryptering och komprimering är två vanliga begrepp inom datateknik och det finns många olika typer av algoritmer inom båda områdena. Rapporten går igenom en möjlig kombination av dessa två begrepp till en enda algoritm. Under projektets gång så har två nya algoritmer utvecklats, en

Sänkt tillverkningstemperatur i varmtillverkad asfaltsmassa

Eftersom det går åt mycket energi för att tillverka asfalt, så är det viktigt att undersöka om det finns möjligheter att minska energiåtgången. Därför har detta examensarbete tillsammans med Peab Asfalt gjorts, för att undersöka möjligheterna till sänkt tillverkningstemperatur. Detta examensarbete syftar till att undersöka om det är möjligt att sänka tillverkningstemperaturen med 30 °C för varmtil

Växelvärme, Nulägesbeskrivning och effektiviseringspotential

Track switches are vital parts in the railway construction. They meet an important feature when planing and stearing the traffic flow through them to increase capacity. To ensure functionality during winter they have since the 50- century systematically installed switch heating with different technical solutions but with the same objective, to keep the moving parts on the switch free from snow and

Glasfiberarmering i betong - Förankringsegenskaper

Fiberbar manufactures glass-fiber reinforcement that is intended to be used in different types of structures, such as buildings and bridges. In order for the reinforcement to fulfill it’s purpose. It’s requires that the reinforcing and concrete interact under load. Earlier trials have shown that the anchorage between the concrete and glass fiber reinforcement is substandard for Fiberbar AB's p

Energieffektivisering miljonprogrammet, en studie av Grönkullagatan

In the 1960:s the Swedish government approved a decision that led to the construction of about one million households during the years 1965-1975. Today these buildings are both deprived and suffer from high energy consumption. To address these problems individually is very expensive. If it instead is done simultaneously substantial savings can be made. The company AB Helsingborgshem owns and manag

Urban vindkraft - Dagens kunskapsläge

For a successful project of urban wind power requires wind as well as attachments, sound level and the requirements and regulations should be taken under consideration. But a lot of experience is still lacking and many projects fail therefore. This report covers the aspects described above and a summary of experiences and knowledge gaps have been made with the aim of facilitating the planning phas

Putsfasader i kustmiljö - En undersökning av havsnära putsfasader i västra Skåne

Kustnära putsade fasader ställda mot havet har av rapportförfattarna observerats vara i sämre skick än fasader med riktning inåt landet i samma miljö. Detta leder till hypotesen att saltvatten påskyndar nedbrytningen av kalk/cementbruk genom saltsprängning eller annan form av vittringsprocess. Ingen form av kemisk nedbrytning är rimlig då salt inte reagerar med putsens vanliga beståndsdelar. SvensOf rendered façades in coastal environment Rendered coastal-facing façades have been observed to be in worse condition than those facing away from the coastline in the same environment. This leads to the hypothesis that salt water accelerates the deterioration of render, either by salt blasting or through other forms of weathering processes. Since salt does not react with common render components,

Battle Management Language - An Implementation for a Military Scenario Editor

In order to plan and control a military simulation, there is a need for a language which can be understood by all parts and levels of the organization - both man and machine. This need has encouraged the development of a highly structured and unambiguous language. The term for this type of language is Battle Management Language. The United States military has further developed the concept into an

International Law and Power: A Theoretical Perspective on Statehood and Self-Determination

The purpose of the present thesis is to investigate the foundations for statehood and self-determination—two seminal points of international law—through the concept of discourse and its notion of power. The starting point is that language and representations of reality are not merely ‘objective’ depictions, but in fact shaped by the practices that convey the representations. This constitutes the t

Macedonian national identity-A study about the current construction of Macedonian national identity in national history narration

The subject of the study is the contemporary national identity of the Macedonians which reflects the actuality and importance of national identity and nationalism in present time. Grounding the research in theoretical frameworks which explore the shaping of national identity and the meaning of history in relation to it, using Rusen’s typology of historical narration as a methodological tool and po

Women and Citizenship Legislation in Lebanon

Lebanese women cannot confer their citizenship to their children incase they marry a non-Lebanese man, nor can the man become a naturalized citizen through his Lebanese spouse. The purpose of this study is to describe the reasons to the policy of dependent citizenship in the Lebanese case, as well as its objectives. Lebanese women’s dependent citizenship in conjunction with the 15 different confes

Auditory Subliminal Stimuli

The aim was to study whether stimuli that cannot be detected consciously might nevertheless influence subject’s higher cognitive functions, and whether such an effect differs in individuals with different levels of state-trait anxiety, social desirability and “Repressor”. Participants (N = 56) listened to a classical piece of music in which subliminal messages were embedded. These messages could b

Hur kan Vägverket kommunicera för att göra en webbtjänst mer känd och använd bland unga människor?

Abstract Being a public authority, as the Swedish Vägverket, includes communication with youth. A lot of research is done concerning youth and its life conditions – they are the future and thereby important to understand. A common goal for public authorities of today is to cooperate to create more value for the citizen. The web service Körkortsportalen is a result of that. The research questions a