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1076 Uppsatser om Materials - Sida 66 av 72

Ledhälsostatus hos Shetland Sheepdog : en enkätstudie

Background The Shetland Sheepdog is a popular breed of dogs in Sweden. The breed is mostly used as a companion dog and is also popular within certain dog sports such as agility. The Shetland Sheepdog is not included in any breeding programs regarding joint health. The animal insurance company, Agria had recently informed the Swedish Shetland Sheepdog Club (SSSK) that they had noted an increasing number of arthritis in the elbow joints, therefore they wanted to exclude elbow joints from the insurance until SSSK started a breeding program against elbow dysplasia. After the start of this study Agria withdrew their demand, but the study went on as planned. Aims of this study The aims of this study was to investigate if there is any data that may show if there is a larger or smaller reason than before to suspect that the breed has a problem with elbow dysplasia and therefore would benefit from a breeding program regarding this.

Igensättning av långsamfilter i Östby vattenverk i Kramfors : studie av påverkande faktorer

Östby waterworks in the community of Kramfors has since 2003 had problems of fast clogging of the slow sand filters. As the clogging appears more often, they must be cleaned more frequently which has made the drinking water preparation difficult. Wintertime it has sometimes been impossible to clean the filters which has led to their closing and this has influenced the water quality negatively.The waterworks is a surface waterworks which takes its raw water from the lake Sjöbysjön. The water is flocculated and filtered in a contact filter with the flocculent EKOFLOCK 91. Thereafter it is alkalinized before it reaches the outdoors placed slow sand filters.

Hur påverkar logistikplaneringen byggarbetsplatsen? : En enkätundersökning om logistikkostnader i produktion

Logistics planning for a construction site is usually limited by traffic flow to and from the workplace. The geographical location of the construction site is determined by roads around the workplace and opportunities for well-functioning logistics. Inventory of material is often impossible because of the frequently small workspaces. As a result, a concern relating material handling remains . Even before the establishment of a construction site, it is required in the construction industry to eliminate errors that might arise in the planning stage.

Styrdokument för kontorsbyggnation ur ett ekologiskt hållbarhetsperspektiv : Aspekter och argument

The construction and real estate industry represents a significant part of Sweden's total impact on the environment and mainly affects the following national environmental objectives: reduced climate impact, a good built environment and a non-toxic environment. By establishing internal rules, companies within the industry can reduce their environmental impact. SMT (AB Sandvik Materials Technology), a part of the industrial group Sandvik AB, has set a target that during 2014 develop a guiding document with special consider to the environmental impact during construction of office buildings, that they establish at the Swedish regional capital Sandviken, for both internal and external tenants. This study therefore aims to clarify which environmental aspects that the construction and real estate sector mainly are responsible for, and therefore should be part of a guiding document for a company for establishing office buildings, and to present arguments regarding the use of such a document. The study is based on literature studies and personal contact with other companies, in the form of e-mail conversations and a telephone interview.

Ny förbättrad layout vid Stena Stål AB : Kartläggning av plock- och tillverkningsprocesser samt personalens arbetssituation i dagsläget.

With today`s business world, it is very important to deliver the right product with right quality and quantity at the right time. By ensuring that the staff are happy and have the opportunity to work in a workplace with good structure, the company will be able to reach these parameters and at the same time maximize the efficiency.The project has been carried out at Stena Stål AB in Värnamo. The company's main task is to cut, store and deliver production steel and tool steel to processing companies in the surrounding region. Stena Stål AB in Värnamo is one of total 21 companies in the company group Stena Stål. Stena Stål is a part of the Stena corporate group which owns a total of eight different company groups that are spread in about 250 different locations in 14 countries.The purpose of this report is to give Stena Stål AB in Värnamo suggestions on how to design a new facility for tool steel.

Mineralämnen i fullfoder : studier på 20 mjölkkogårdar i Halland

In 2003 the recommended phosphorus allowance for dairy cows in Sweden was lowered approximately 10 %. For a cow at a production level of 35 kg ECM it decreased from 0,40 to 0,36 % of dry matter. To investigate if the decrease has been implemented at farm level, analysis of following minerals; P, Ca, Mg, K, Na, S, Se, Cu, Mn and Zn was performed on the TMR at 20 farms in Sweden in the summer of 2004. The purpose was to describe the actual allowance of different minerals as compared to the new recommendations. One hypothesis was that the decrease in recommended allowance of phosphorus would lead to the need of new mineral feeds on the market.

Historia och historieskildring i det svenska skolsystemet : En studie kring läroplaner, faktaskildring och historiebegrepp, mellan 1962-2012

Syftet med detta examensarbete har varit tudelat, med både kvalitativ och kvantitativ innehållsanalys. Den första har syftat till att undersöka vilken ställning historieämnet har haft i läro- och kursplaner, från år 1962 till 2012. Analys skulle också ske över vilken historia elever möter genom läromedel i historieundervisningen, vilket har skett utifrån Staffan Selanders definition av pedagogisk text-traduktion. Den kvantitativa innehållsanalysen har berört vilka och antalet begrepp eleverna möter i epokskildringen av häxprocesserna. Resultatet har visat att historieämnet som en del av styrdokumenten ständigt har haft en hög status, trots att det i den samhälleliga kontexten har gått att utläsa motsatt scenario.

Potentialen av värmebesparing i ett avlopps luftningsledning

This thesis aims at determining the heat losses in a property vent stack and its roof valve. Upon request of a company, the vent stack is analysed for possible heat recovering solutions to be implemented, while relining of the drain system is executed and with a suitable payback time for the economic investments. The heat loss calculations are based on data for properties that are located in the Stockholm region, but also easy to change depending on the situation. The calculations are done on pipes made out of cast iron, which still is the most common type of drain pipe in Sweden, and these are the pipes that relining is usually made on. The calculations that needed to take several variables into account have been done in MatlabR2014a and the thermos dynamical properties that were used in those calculations have been extracted from EES.Three different types of heat losses in the vent stack have been taken into consideration in this thesis.

Tillämpning av nya beräkningsmetoder för branddimensionering av  träkonstruktioner - analyser och jämförelser

To build high-rise buildings made of timber has for long been limited by national laws, due to the lack of knowledge in engineering solutions. Frame structures made of wood has for a long time been associated with major fire hazards and consequently lower safety and this connection is still being made today. The increased environmental awareness in recent years has contributed to the exploitation of indigenous building Materials, including wood from our own Swedish forests and has become increasingly common. Increased knowledge about how structures behave in fire and how they can be protected in order to achieve safe timber structures has resulted in a growing interest in these structures in the construction industry. Research in the area is constantly updated and new laws allow any number of storeys in wooden buildings in Sweden as long as the performance requirements are fulfilled.The main part of this work has involved calculations of the fire resistance and load bearing capacity of floor and wall constructions.

Market analysis for glulam within the Swedish construction sector

Glulam?s position at the Swedish market for building constructions has been established over the past decades. Factors affecting glulam demand are found both in global and national contexts as well in customer attitudes and knowledge of the material. Arguments for environmentally friendly and sustainable construction processes and energy-efficient designs are nowadays common, which is something that should motivate increased usage of wood as a renewable material. For the glulam industry to increase its sales, improve profitability and thereby gain market share in present competitive climate, reliable market information and updated market intelligence is required.

En jämförelse av sitkagranens (Picea sitchensis) och den vanliga granens (P. abies) produktion :

Sitka spruce (Picea sitchensis) is a tree species that have its natural distribution along the West Coast of North America, from Alaska in the north to northern California in the south. Sitka spruce is a typical coastal tree species that can reach heights up to 85 meters and occurs in single pure as well as in mixed stands. The main purposes of this study were to describe the Sitka spruce growing characteristics and the volume production in comparison to spruce (Picea abies). The possibility to predict future volume production by using prognosis tools designed to be used on spruce were also studied. The material that has been used in this study are permanent sitka trials established by the Faculty of Forestry fixed Sitka trials and also material gathered in this study. A literature study was also carried out in order to determine the Sitka spruce growing characteristics. Sitka spruce has a high adaptation and a high volume production on a broad scale of soil types. The tree species is a pioneer species that has a fast early growth and in combination with sharp needles it is less susceptible to animal browsing than spruce. The factor that is the single most limiting factor for where the Sitka spruce can be planted is frost. This factor can be limited by using plant material with a well-suited provenance. According to the literature, the Sitka spruce has an average total volume production that is between 20-40% higher than spruce.

Fejans vandrarhem ? En studie om isolering och uppvärmningsalternativ

During the last decennium climate issues have become more and more important. Many steps towards an adaption of efficient energy supply systems have been taken all around the world. These steps have been created to ensure the next generation?s energy demand. In EU and Sweden objectives have been set to ensure that the energy consumption decreases by 20% year 2020 and by 50% year 2050 compared with the energy consumption levels of year 1995.

Ma?rkning av leveranser : En fallstudie utförd på Sandvik Materials Technology

I detta examensarbete har Alne församlingshem i Örnsköldsviks kommun varit den centrala delen. För att företaget Tecnicon, som projekterat byggnaden, ska få ett kvitto på vad som blev bra och vad som blev mindre bra från projektering, så jämförs energiprestandan mellan projekterad och uppföljd. Utöver detta undersöktes det om byggnaden blev ett lågenergihus samt ur en miljömässig, energimässig och ur ett ekonomiskt perspektiv jämfördes Alne församlingshems klimatskal med ett klimatskal som uppfyller energiprestanda kraven som BBR ställer.För att genomföra detta gjordes en energideklaration över byggnadens energianvändning och som jämfördes med det projekterade resultatet. Värden för energiberäkningarna har avlästs på el- och vattenmätare, hämtats från elbolaget, i tekniska datablad, schablonvärden samt antagna värden. Som hjälp vid energiberäkningarna användes ett Excel-dokument där energiprestandan beräknades.

IT-samhällets kärleksbrev : En kvalitativ innehållsanalys av kommunikationen via nätdejting

Abstract Author: Kristin NäsTitle: The technology society?s love letters ? a qualitative analysis of communication through internet dating.Level: BA Thesis in CommunicationLocation: University of KalmarLanguage: SwedishNumber of pages: 53 Keywords: communication, dating, web dating, gendering talk, interaction, flirting, the internet, contact, communities.Summary: A qualitative study on the subject of internet dating and how people using internet dating chooses to present them self and how they choose to communicate with others to create contact. Internet dating is a phenomenon that is continually growing. 2 million people in Sweden are singles today and more than half of them have tried internet dating at least once. The purpose of this study was to research the way people choose to present them self and how the communication on an internet dating site is used.

Passivhus - lönsamt eller ej? : En jämförelse mellan ett passivhus och ett konventionellt hus

As a result of increased energy prices more and more energy-efficient homes are coveted. An energy-efficient alternative is passive houses, which is characterized by an extremely well insulated building envelope that recovers the heat without the use of radiators or under floor heating. But a passive house requires a higher investment cost than a conventional building project, since it will require more construction Materials, training of construction workers, greater land area, and long construction period. But the lower operating cost expects to pay back the higher cost of investment. We therefore question how profitable a passive house is in relation to houses built according to modern conventional building techniques.The aim of our study is to investigate the viability of passive houses compared to convent­ional houses.

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