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547 Uppsatser om Absorption cooling machine - Sida 11 av 37
Kemiskt försvar mot havstulpanskolonisering i marina svampdjur
The purpose of this project is to analyze and study the absorption of the substances ivermectin, spinosad and barettin to hydrophobic and hydrophilic surfaces, and to analyze and study if the barnacle larva are effected when they try to settle on the treated surface.Incubation tests with barnacle larva in Petri dishes were performed as well as absorption tests on hydrophobic and hydrophilic surfaces which were tested with ellipsometry. To determine the surface thickness.The barnacles were placed in hydrophobic as well as hydrophilic Petri dishes that had been incubated with ivermectin, spinosad or barettin. After four to six days the larva was counted to analyze the settling. From the results conclusions could be drawn about the adsorption abilities of the substances to the different surfaces.The barnacles were placed in hydrophobic as well as hydrophilic Petri dishes that had been incubated with ivermectin, spinosad or barettin. After four to six days the larva was counted to analyze the settling.
Analys av hur byggnadens höjd påverkar energiförbrukningen i flerbostads- och kontorshus
This diploma work has been carried out in collaboration with the building contractor Sh Bygg Fastighetsutveckling AB in Uppsala with the intention to investigate how the height of a building affects various energy aspects such as transmission losses, infiltration, and the specific energy usage. Three different reference objects have been studied. The reference objects have been simulated for four different heights in the calculation program VIP-Energy.The results show that an increase in floor number can lead to both advantages and disadvantages. As the number of floors increases, transmission losses per square meter floor area decreases. However, as the height of the building increases, the reduction rate decreases.
EasyMill - En kompakt CNC-fräs för träskivor
ThisreportisathesisfortheTechniciansinComputerAidedDesignprogramatHalmstadUniversity.Thegrouphasdevelopedamillingmachinemainlyusedforfiberboards,onbehalfofJohanWretborn..
Automatiskt Nödstopp
In today?s industry it is starting to get more and more interesting with wireless systems and solutions for applications. To be able to reduce the amount of cables drawn to various machines which takes both space and an extra fee for every cable drawn. Some systems might require the user to use a handheld device that is directly connected by a cable which in some machines might be inelegant for the user.The goal with this bachelor thesis is to develop wireless monitoring of the machine operators position that is working with heavy industrial machinery. The thesis started out with researching different techniques for positioning a transmitter indoors, this was done in order to get a better understanding on how to go about.
Cross-Language Information Retrieval: En granskning av tre översättningsmetoder använda i experimentell CLIR-forskning.
The purpose of this paper is to examine the three main translation methods used in experimental Cross-language Information Retrieval CLIR research today, namely translation using either machine-readable dictionaries, machine translation systems or corpus-based methods. Working notes from research groups participating in the Text Retrieval Conference TREC and the Cross-Language Evaluation Forum CLEF between 1997 and 2000 have provided the main source material used to discuss the possible advantages and drawbacks that each method presents. It appears that all three approaches have their pros and cons, and because the different researchers tend to favour their own chosen method, it is not possible to establish a "winner approach" to CLIR translation by studying the working notes alone. One should remember however that the present interest in cross-language-applications of information retrieval has arisen as late as in the 1990s, and thus the research is yet in its early stages. The methods discussed in this paper may well be improved, or perhaps replaced by others in the future..
Effektivitet på olika biogasanläggningar : Definiering och framtagning av nyckeltal
SammanfattningDet finns tre anledningar till att uppsatsen kom att handla om biogas. Göteborg Energi AB som vi samarbetat med under vårt examensår, hade ett behov av att kartlägga hur effektiva deras biogasanläggningar var. Samt vårt intresse för biogas som bygger på ett stort engagemang kring förnybarenergi, och att branschen spås en lika expansiv utveckling som vindkraften haft det senaste decenniet.Syftet med uppsatsen är att defininera och utveckla relevanta nyckeltal. Vi kommer sedan att samla in data från utvalda biogasanläggningar, för att sedan sammanställa och analysera denna. Frågan vi vill besvara är hur de olika biogasanläggningarna och produktionsmetoderna skiljer sig åt beträffande hur effektiva de är ur energi- och kostnadssynpunkt samt ur ett lönsamhetsperspektiv?För att besvara forskningsfrågan har vi skapat en modell där relationen mellan de olika nyckeltalen illustreras och förklaras, för att skapa förståelse för sambandet mellan intäktsdrivande och kostnadsdrivande produktionsfaktorer.
Vem styr bostadsbyggandet i Nacka och Södertälje? : Vilka aktörer påverkar slutresultatet?
Who runs the development? A comparative study of the construction of residential buildings in Nacka and Södertälje.The aim of this study is to identify actors involved in the initiation and implementation of residential house construction in two Swedish municipalities. This means who is taking initiative for new residential buildings, who affects the planning process, who finances these new buildings and who builds them. By exploring empiric material from the municipalities of Nacka and Södertälje, the above questions will be answered and by referring to pluralism, growth machine theory and regime theory a link to general theories of political science is made. The results found show that the analysed municipalities have quite different possibilities for acting and that these backgrounds are also important for which actors will take initiative for new residential buildings and which actors will be allowed to state their opinion during the planning process.
Design och konstruktion av Splitmaskin
During springterm 2010 Erik Persson and Magnus Hansson performed their ThesisWork with DIAB Laholm, in Hallands County for University of Halmstad.The project has been a product development project without exterior customers. Thusit had a great emphasis on functionality and less emphasis on marketing and such.This reflects the ambition to develop machinery to be used within the productionfacilities of DIAB Laholm, not to be sold to exterior customers.Main objective has been to create machinery which enables the production ofrotational symmetric work pieces within a NC-milling machine with 5 axles. Thework pieces milled will be made of DIAB?s material Divyncell with varyingdensities.The project has followed Fredy Olssons method involving Principal ? Primary ?Manufacturing constructions. However a complete manufacturing construction hasnot been made since DIAB just wanted a good Primary construction which will serveas a base for finishing touches at DIAB.By the end of the project material including calculations has been sent to DIAB andthey will finish the work and manufacture the machine if they find economic viabilityin this.The work method has been suited for this by several reasons, it was created withthese projects in mind and it?s also the method most familiar to us..
Konstruktion av specialmaskin för orientering och positionering av nyckelämnen
The thesis in product development ? mechanical design includes 15 credits and was carried out during the spring of 2014 at Semcon in Eskilstuna. The task is to construct a special machine for positioning and orientation of a key blank found in six different shapes, the construction is a part of a larger machine for encoding the key blank where a pick- and-place device or robot pick up the key blank and deliver it further in the process. The entire construction is designed for ASSA OEM Gothenburg.In order to accomplish the project the first step was to analyze the existing solutions to similar problems on the market in a current situation analysis to create an understanding of the problem. This was followed by a flow analysis and a functional analysis to get a deeper understanding of the problem and structuring the machine's process flow and its features.
Sönderdelning av plogtilta med skärknivar :
During the last couple of years it has been more important to reduce the driving on the field to prepair the soil after ploughing. The machine costs are high so it is necessary to be effective. To reach a pleasant soilbed directly after ploughing is sometimes possible on easier soils but heavier clay soils always need more tillages. There is a lot of equipment mounted on the ploughs on the market, for example Furrow Cracker and Furrow presses, which makes a pleasant soilbed on easier soils. The last year Överum and Kverneland have presented knives which are mounted on the wing or moulboard.
Konstruktion av 6:e axel på 5-axligportalfräsmaskin
During springterm 2010 Erik Persson and Magnus Hansson performed their ThesisWork with DIAB Laholm, in Hallands County for University of Halmstad.The project has been a product development project without exterior customers. Thusit had a great emphasis on functionality and less emphasis on marketing and such.This reflects the ambition to develop machinery to be used within the productionfacilities of DIAB Laholm, not to be sold to exterior customers.Main objective has been to create machinery which enables the production ofrotational symmetric work pieces within a NC-milling machine with 5 axles. Thework pieces milled will be made of DIAB?s material Divyncell with varyingdensities.The project has followed Fredy Olssons method involving Principal ? Primary ?Manufacturing constructions. However a complete manufacturing construction hasnot been made since DIAB just wanted a good Primary construction which will serveas a base for finishing touches at DIAB.By the end of the project material including calculations has been sent to DIAB andthey will finish the work and manufacture the machine if they find economic viabilityin this.The work method has been suited for this by several reasons, it was created withthese projects in mind and it?s also the method most familiar to us..
Utredning av solenergi för drivning av sorptiv kylprocess för inomhusluften på Stockholmsarenan
Cooling down the indoor air can be done in several ways. One way is desiccantcooling which will be used at the Stockholm Arena. This method is used in airhandling units that use temperature changes and moisture fluctuations in the air. Oneof the steps is to add heat during the cooling process in order to reduce the relativehumidity of the exhaust air. The air passes thru an adsorptions rotor which thenabsorbs moisture from the supply air.
"Dåligt språk ger dåligt jobb"
Vårt syfte med detta examensarbete är att förstå nyanländas upplevelser och tankar kring sitt karriärval i det nya landet utifrån faktorer som tidigare utbildning från hemlandet, språk och studie- och yrkesvägledning. Undersökningen handlar om nyanlända med hög utbildning från hemlandet som går på SFI. Våra frågeställningar till examensarbetet är: Hur upplever nyanlända att tidigare utbildning och det nya språket påverkar karriärvalet i Sverige? Hur upplever nyanlända att studie- och yrkesvägledning påverkar deras karriärval i Sverige?
Till detta arbete har vi använt oss av Phil Hodkinson och Andrew Sparkes Careership teori samt effekten av Cooling down som kan uppstå under vägledningssamtalen. Studien bygger på en kvalitativ metod där vi intervjuar sex nyanlända vuxna som går på SFI-utbildningen.
Dåligt språk ger dåligt jobb
Vårt syfte med detta examensarbete är att förstå nyanländas upplevelser och tankar kring sitt karriärval i det nya landet utifrån faktorer som tidigare utbildning från hemlandet, språk och studie- och yrkesvägledning. Undersökningen handlar om nyanlända med hög utbildning från hemlandet som går på SFI. Våra frågeställningar till examensarbetet är: Hur upplever nyanlända att tidigare utbildning och det nya språket påverkar karriärvalet i Sverige? Hur upplever nyanlända att studie- och yrkesvägledning påverkar deras karriärval i Sverige?
Till detta arbete har vi använt oss av Phil Hodkinson och Andrew Sparkes Careership teori samt effekten av Cooling down som kan uppstå under vägledningssamtalen. Studien bygger på en kvalitativ metod där vi har intervjuat sex nyanlända vuxna som går på SFI-utbildningen.
Volymsrapportering vid terrängtransport av virke
This report is a B.Sc. Forestry thesis work at the school for Forest Management, SLU.
The work was an assignment from the forest owners? association Mellanskog.
The aim of the work where to investigate the economical result of removing undergrowth trees before first thinning, and a follow-up of the contractors and their compliance with Mellanskog standards.
This thesis work was divided in three parts: The first was to find a relation between the net volume from the first thinning and the cost of cleaning undergrowth trees. Secondly there was a follow-up in the field, to investigate whether the contractors have done the undergrowth cleaning according to Mellanskog?s directives.