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1594 Uppsatser om Plant site - Sida 43 av 107
Optimization of Burner Kiln 7, Cementa Slite
In this report focus is put on the combustion process at a cement plant. Combustion is the
heart of the cement making process and absolutely crucial to have under full control and well
optimized.
The fuel is put into the process through a burner pipe and this burner pipe is modified to
reach a more efficient combustion. The primary target is to enable burning of heterogeneous
alternative fuels and increase the production level. Other positive effects from this type of
optimization is lowered specific fuel consumption and lowered CO2 emissions.
A redundant burner is chosen for the project and overall the project steps are the following:
1. Installing a Jet air nozzle ring in a way so it can move both axially and radially due to
temperature changes.
2.
Autumn water sources for understory vegetation and fungi in a boreal forest : an evaluation using stable isotopes
Understory vegetation and fungi are regarded as important ecological drivers of processes like productivity and nutrient cycling in boreal forests. Whilst those processes are linked to soil water content, relatively little is known about the sources of soil water for these forest
components. During early autumn in boreal forests, temperature falls and large events of rain are frequent which may influence soil water availability. To better understand the autumn plant-soil-fungi water relationships in this ecosystem, I used stable isotopes techniques in this
study to examine the water sources for ericaceous shrubs and fungi in a Scots pine forest following a large, early autumn rain event. I hypothesize that ericaceous shrubs of two functional groups (evergreen vs.
Att anpassa ett småhus till prefab
Prefabricering eller platsbyggt hus? Många ställer sig den frågan. Vad finns det för fördelar respektive nackdelar med prefabgentemot platsbyggt hus? Vilka ritningar behövs och hur går man tillväga?Detta examensarbete är en framtagning på hur man anpassar ett småhus till prefabricering.Platsbyggt hus är ett hus som byggs på plats. Material fraktas dit, förvaras och kapas.Den vanligaste byggmetoden för byggande av hus.Prefabricering av hus är däremot ett hus som byggs i en fabrik eller industri.
Akutbehandling av hyperkalcemi hos hund
In this thesis we propose a conceptual plan for thedevelopment of an Agroforestry Training Centre (ATC)in Musoma, Tanzania. The aim is to make a proposalto support peasant education in agroforestry. How canan ATC in Musoma be developed into a stimulatingand educational park suitable for teaching agroforestrymethods to peasant farmers and other potential users?To answer that a field study was conducted to investigatehow our client Vi Agroforestry Programme (Vi) and thetarget groups of the client can benefit from the site.The thesis begins with a short explanation of thecontext, in which the ATC plays a part followed by amethodology chapter. Next are three chapters presentedwhich introduce the reader to the research conductedbefore starting the proposal, these include: results ofliterature studies, study of precedents, and results of fieldstudy.
Ett dedikert sportprodukt till klatring for mennesker med amputert arm
The purpose of this study is to facilitate sustainable building by the use of BIM. The goal is to determine which aspects of sustainable building, which can be analyzed mainly with BIM tools, but also other aids.The study is based on literature studies and interviews. The literature review examines aspects important for sustainable building by studying environmental certification systems applicable in Sweden, as well as the BIM tools available on the market to analyze these aspects. The literature also includes the concepts of BIM and sustainability in order to provide a clearer view of its meaning. The interviews have brought the study's overall understanding of the industry and guidance on the subject.The results are presented in a table, where the aspects relevant to sustainable building are listed.
Hydrolys av primärslam för förbättrande av biologisk fosforreduktion vid behandling av hushållsavloppsvatten [Hydrolysis of primary sludge for enhancement of biological phosphorus removal in household wastewater]
Hammarby Sjöstad is a new district of southern Stockholm built with focus on reduced environmental impact by recirculation of materials and sustainability. The environmental goals aim to cut the water consumption by half and a separate storm water treatment. Thus, the wastewater will be more concentrated and will originate from the households only. The Sjöstad project includes the idea of a local treatment plant for the household wastewater. To evaluate this possibility, Sjöstadsverket, an experimental treatment plant was constructed.
Transporttidsmodellering vid provpumpning i heterogen jord : spårämnesförsök i en isälvsavlagring
When protection zones for wells are delineated, it is important to acquire good knowledge about possible travel time from different points in the catchment area to the well. Often, simple analytical methods are used for estimating travel times and the assumption is made that the hydraulic conductivity is relatively homogenous within the aquifer. Nevertheless, many aquifers are strongly heterogeneous which may lead to differences between estimates and actual travel times. As a part of the process to develop improved methods for delineating protection zones for groundwater supply wells, a tracer experiment was performed in a glaciofluvial esker formation in Järlåsa. On the basis of the experiment, a numerical flow model was created for the test site.The purpose of this master?s thesis was to apply the flow model to an aquifer where the hydraulic conductivity shows great variability and should be described by a stochastic distribution.
Kartläggning av markberedning i svår terräng på SCA Skog
Due to the requirement for reduced use of insecticides and the lack of competitive mechanical plant protection, you need a scarification with good result. This is often no problem to perform in normal terrain without technical barriers. However, in difficult terrain with large number of rocks and steep slopes, the result would be worse. The purpose of the study is, that in these areas with difficult terrain, to find out the scarified areas quality, describe the non-scarified areas conditions and find out where the limit is for the use of a traditional disc trencher. Findings indicate that there are usually not the machine that is the limit, but the driver of this.
Industrialiserat byggande
The industrialization of construction is increasing in Sweden which leads to higher demands of prefabricated components and cells. But what does the business of construction think of the industrialized business and what can be done in order to decrease faults and errors with these products? Today we have many manufacturers who have different technical solutions which might lead to difficulties when assembling components and cells at the building site. But by trying to make a more opened market, with possibly standardized connections details and improving the communication between the different participants, the prefabricated components and cells can be made and assembled with less errors. This is something that needs to be done in order to establish a more secure business, and especially when working with new companies and methods, when using industrialized products..
Rehabilitation in a tropical secondary rain forest in Malaysian Borneo : early effects of canopy properties on light conditions at the forest floor
Tropisk regnskog i Sydostasien är ett av de områden som hyser störst biodiversitet i världen, av vilken stora ytor är hotat. Ön Borneo drabbades av en katastrof åren 1982-1983 efter att väderfenomenet El Niño orsakat torka med vidsträckta skogsbränder som följd. Detta lämnade stora ytor av Borneos skogar i ett undermåligt, sekundärt tillstånd. På grund av detta startades INIKEA projektet med syfte att rehabilitera skogar i regionen kring Tawau vid östkusten av delstaten Sabah i Malaysia. I denna studie undersökte jag resultatet av rehabiliteringsarbetet på krontaket i tre olika skogstyper genom att ta hemisfäriska foton med en digital systemkamera (DSLR).
Flödesanalys av laser- och limcell på Volvo CE i Eskilstuna
Volvo Construction Equipment AB Component Division (CMP) I Eskilstuna har idag det globala ansvaret för utveckling och tillverkning av drivlinor till anläggningsmaskiner. De nya kraven på nästa generations transmissioner har dock krav på sig att vara mindre och lättare samt ha mindre inre förluster än den föregående. För att kunna möta detta krav krävs det att kopplingsaxlarna i tranmissionerna blir mindre. För att leva upp till detta samt en förbättring hos kvalitén på förbanden så introduceras två nya fogningsmetoder enligt laser- och lim/krympförband. I denna rapport klargörs flödet genom de två fogningscellerna.
Samtidskonsten och bildämnet i skolan, : En undersökning av högskolekurs Samtidskonst i pedagogiskt perspektiv vid Linnéuniversitetet
Magisteruppsats 15 hp Vårterminen 2011ABSTRACT Eva CronquistSamtidskonsten och bildämnet i skolan En undersökning av högskolekurs Samtidskonst i pedagogiskt perspektiv vid Linnéuniversitetet Contemporary Art in Art EducationA Study up on University Course Samtidskonst i pedagogiskt perspektiv at Linnaeus University Antal sidor: 53 Uppsatsens syfte är att visa på vilket sätt den samtida konceptuella bildkonsten förändrar en lärandeprocess och på vilket sätt det platsspecifika bildkonstbegreppets metoder kan belysa en kunskapsbildning. Den teoretiska utgångspunken för undersökningen är det sociokulturella perspektivet. Undersökningen vilar på en kvalitativ forskningsstrategi. Uppsatsen synliggör de möjligheter och utmaningar som ett samtida konceptuellt platsspecifik konstbegrepp innebär för bildämnet. Undersökningen är utförd på material från studenter som gått kursen Samtidkonst i pedagogiskt perspektiv vid Linnéuniversitetet. Resultatet baseras på en kvalitativ analys av insamlade rapporter, bildmaterial och skriftliga svar på utskickade frågor.
Att konstruera en gemenskap -teori och konstruktion av virtuella samhällen
Virtual communities are a phenomenon that is becoming more
common as the information technology comes with in reach for
the general public. This report will bring the theories and
construction of a virtual community together.
The purpose of this report is to describe the different theories that have
emerged from the research within this field and to examine the work procedures
that have been used during the development of a site for a MDA-community. The
MDA-website is a homepage on the Internet that was developed to bring the
students closer together. The report describes the work of the project group,
why the website was not completed and at the end the theories are looked at on
the basis of the construction of the website..
Olfactory responses of the parasitic wasp, Trybliographa rapae (Hymenoptera: Figitidae)
Delia flies (Diptera: Anthomyiidae) are economically important pests in several horticultural crops. The control is commonly relying on chemical insecticides, though there are possibilities with biological control from the natural enemies in the field. An important natural enemy is the parasitic wasp, Trybliographa rapae Westwood (Hymenoptera: Figitidae) that lays eggs in the Delia fly larvae. The parasitoid larva and the host larva have a parallel development until the host dies within its puparium and an adult parasitoid emerges.
The aim of this thesis was to understand the attraction to host- and food-associated plant volatiles of T. rapae, in order to enhance the effectiveness of the parasitic wasp as a biological control agent.
BIM för Hållbart Byggande
The purpose of this study is to facilitate sustainable building by the use of BIM. The goal is to determine which aspects of sustainable building, which can be analyzed mainly with BIM tools, but also other aids.The study is based on literature studies and interviews. The literature review examines aspects important for sustainable building by studying environmental certification systems applicable in Sweden, as well as the BIM tools available on the market to analyze these aspects. The literature also includes the concepts of BIM and sustainability in order to provide a clearer view of its meaning. The interviews have brought the study's overall understanding of the industry and guidance on the subject.The results are presented in a table, where the aspects relevant to sustainable building are listed.