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1980 Uppsatser om Construction moisture - Sida 55 av 132

Utveckling av Steghållare : För yrkesmän med skåpbil

Uppgiften som detta examensarbete går ut på är att utveckla en ny steghållare som ska ingå i Thules produktserie Professional. Det är önskvärt att kunna lasta stegen bakifrån och möjliggöra lastning från marken även på högre skåpbilar. Steghållaren ska framförallt vara anpassad till yrkesmän, såsom hantverkare, målare, etc. Därför söker Thule en robust, säker och lättmanövrerad steghållare med attraktivt utseende. Steghållaren ska minska den tid det tar att lasta på och av stegen.

Banväljare till livsmedelsindustrin

This report is about the issue with decreasing production rate mainly caused by failuresrelated to the multiswitch. The multiswitch is a machine at Gefleortens Mejeriföreningwhich has the function of distributing milk cartons from one incoming track into fiveoutgoing tracks. Milk cartons who gets stuck and there by causes the production to stop,is the mainly problem with this constructionThe purpose with this report is to understand the causing factors and make suggestions which can help solving these factors. By analyzing the machine during production, having contact with different suppliers, searching internet for information, 3d-cad drawings and the complementary with personal experiences, this machine has  been evaluated and as a result of this new problem has come to be known.The discovered problems was analyzed and resulted in new suggestions for alternative options. Later the most functional results was chosen and put as a suggestion for the new model.A new machine built with the suggestions from this report assures to be well adapted to the environment at Gefleortens Mejeriföreing and the problems it causes..

Utveckling av ett provtagningssystem för alkohol och aldehyder i fordonsemissioner.

A system for sampling of alcohol and aldehyde from diluted exhaust gases from vehicles powered by ethanol has been developed and tested. The major part of the work has been research of earlier work in the field and the construction of the sampling system.The part of the system constructed for the measurement of alcohol has been shown to work, however, more test should be performed. The part of the system constructed for the measurement of aldehyde was tested parallel to a commercially available system, based on the same principle of measurement, and has been shown to work well.Determination of the concentration of gaseous ethanol using a FID has shown the since earlier known fact that a FID is not able to measure a correct concentration of ethanol. Furthermore it has been shown that high concentrations of gaseous ethanol can not be kept in a bag more than a few minutes without a substantial decrease of the measured concentration..

Samordning mellan bygg- och underentreprenörer

Kv. Sandhamn heter projektet, där jag utförde min verksamhetsförlagda praktik och det var totalt sjuttio lägenheter byggda till en beställare, som i detta fall är Familjebostäder. Projektet är en totalentreprenad där HMB Construction AB är totalentreprenör. Jag har valt att avgränsa mig till att undersöka samordningen mellan bygg- och underentreprenörer, endast på HMB Constructions AB. Anledningen till det här arbetet var att se hur samordningen fungerar mellan bygg- och underentreprenörer.Genomförandet av detta arbete har sin grund i en frågeenkät som jag delat ut till sex olika entreprenörer.

Design av slutsteg med digital PWM-teknik för gitarr

Softube has developed DSP-card and software for simulation of the sound of old tube amplifiers. The purpose with this thesis is to design a compact amplifier with high power to function together with the DSP-card and build a unit that can replace several other guitar amplifiers. The advantages with that kind of solution could be that it would be cheaper, easier to carry and easier to stor than the real amplifiers. The amplifier that has been designed is of class D type with digital PWM modulator. There is several types of amplifier modules on the market that use analog input signal, but if one of them would be used a D-A converter is needed on the DSP card.

Materialval i utfackningsväggar

The aim of this report is to give a concise description of curtain walls, what it is and why they are used. It is also a description of six different but commonly used design technologies. By giving a detailed description of the different types and there special properties, the pros and cons will be clarified. The three most interesting alternatives were selected to be included in a test, to show the best alternative from a certain point of view.The parameters are:? Environment? Cost? Ergonomics? Isolation against noise and fire? DurabilityThese are important parameters in the planning and design phase.

Basenhetskoncept för projektordukar

Our thesis is conducted in collaboration with Draper Europe AB in Halmstad.The goal of the project has been to construct a baseline concept for the instaling of aprojector screen. Draper Europe AB, in the curent situation, have several kinds of fabrics and designs on their sceens and the cases they are in. Today if you select a screen you can´t chose the design and function of the sceens case.The arrangement of the components inside the cases was to be constructed so the assembler simply could move them to different cases. To make it even easier for the assembler and to save time, the desire of less component was mentioned. Another problem that needed to be solved was the mounting of the projectionscreen at the customer place.

Gravar i Alsike hage : Analys av fyndkontexter och gravkonstruktioner tillhörande gravfältet RAÄ 26 i Alsike socken, Uppland

This essay deals with the results and observations made during excavations in an iron age cemetery in Alsike hage, located in Alsike parish. The excavations took place in 2005 and 2006 and the investigated area comprised two adjacent, but secluded burial-constructions; a square stone setting with a secondary grave, and a stone-built terrace with at least one secondary grave. The artifacts suggests that the TPQ of the stone setting, and the construction date of the rest of the graves, is 900-950 A.D. The aim of this study was to comprehend the course of events in the investigated area, and toanalyse the archaeological finds - in comparison to the well documented an discussed material burial culture in the lake Mälar area ? in order to discuss indicators of gender and social status.Metal artefacts has been preserved as a part of the analysis..

Undersökning av fasadskivor

The purpose of this report is to present some of the market's façade panels and to do a survey of Masonite façade panels and compare. Therefore I have looked closer on potential competitors and studied their assembly method and properties. I will also propose suggestions on installing Masonite panels and improvements to the current carrying system. The carrying system for façade panels in general. Various key people in various areas of the construction industry have been interviewed. People with a wide knowledge of theory and with real work experience have been my main focuses too implement this survey.

Konsten att sälja sig själv : Balanserandet mellan identiteter och roller i fåmansföretag inom musikbranschen

Konsten att sälja sig själv/The art of selling yourself grasps the complex of problems that occur when artists chooses to start their own record companies. Not only must the artist fulfil the cultural aspects of being an artist but also the economical aspects of running a business. This means that the artist?s identities and roles become more complex. The purpose of this paper is to understand the construction of identities among artists who run their own record companies.

Underhållsbehandling ur socialtjänstens perspektiv

The aim of the study was to get a deeper understanding of how social workers at the welfare office think and act when it comes to methadone or buprenorphine treatment. What role does the welfare office take when it comes to methadone- or buprenorphine treatment, what does the welfare office think about this form of treatment, what possibilities does the welfare office have when it comes to decide the selection to this kind of treatment and what consideration does the welfare office take to the separate individuals demands when it comes to methadone- or buprenorphine treatment. The study is done in the perspective of society as a social construction. The method that was used was qualitative interviews with professionals at the welfare office and professionals at the reception of methadone- and buprenorphine treatment. The result of the study is that the attitude towards methadone- and buprenorphine treatment is complicated and the opinions are partly divided..

Kvalitetsarbete i grotskotning

This study was carried out at the request of the Swedish forest company Sveaskog which is an important producer of logging residues (branches and tops) intended for energy production. The company wanted to increase the average dry content to 60 percent in their delivered logging residues. At the time when this study was initiated, the dry content in the chipped logging residues originating from the Bergslagen district was at 52 percent. The aim of the study was to find out how windrows of logging residues could be arranged in order to help obtain desired properties such as increased dry content. Sveaskog had developed a system for evaluation of windrows and a standardized form was utilized to describe different properties of the windrows.

Nordisk identitet i förändring 1990 - talets försök till en nyartikulering av den Nordiska identiteten

The thesis analyzes the making of Nordic identity after the cold war which brought an end to Nordic exclusiveness of emphasizing ?soft power?. A need for a revitalization combined with an effort to enter History as an active subject, created constructivist project of a narrative style.My study relies on contemporary literature, focusing mainly on the construction of Nordic identity and regional cooperation in the 1990: s.I argue that Nordic identity was, and still is, determined of its comparable weakness in regard to the superpowers of the cold war, and, nowadays, to the EU.The architects of establishing a new Nordic identity, able to challenge a new Europe, fails in their effort, and what is left of their endeavour are separate states, each following their own agenda..

Skapa ett equalized underhålls/planeringsprogram samt minimera driftstopp

This report is a thesis on requests from Sandvik Mining and Construction (SMC) in autumn of 2012. The goal of this work was to study the feasibility of creating and implementing an Equalized preventive maintenance program in SMC maintenance operations and reduce downtime for preventive maintenance (PM). To investigate whether this was possible, the authors studied the current procedures for the PM. The authors have collected and analyzed all relevant information within the maintenance department reporting system as well as through interviews determined whether it is practical to introduce a Equalized PM programs. The authors had also studied the possibilities to entrust part of the maintenance work to the operators of the machine cells.

Träbroar för järnvägstrafik

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

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