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245 Uppsatser om Maj Sjöwall - Sida 10 av 17

Analys av lokala otÀtheters pÄverkan i yttervÀggskonstruktioner : Analys och riskbedömning med programmen WUFI and WUFI-Bio

MÄnga byggnader Àr idag fuktskadade. Fuktskador uppstÄr pÄ sÄ vÀl nya som gamla byggnader. Idag provtrycker man hus för att fÄ ett vÀrde pÄ dess tÀthet, men mÄnga hus som klarar tÀthetskraven drabbas ÀndÄ av fuktskador. Detta beror pÄ att otÀtheterna Àr lokala pÄ en eller flera delar av klimatskalet bortsett frÄn otÀtheter vid anslutningar.  En studie har gjorts pÄ tvÄ vÀggtyper; en standardvÀgg och en passivhusvÀgg.

Radiologiska tecken vid lungödem hos hund och katt :

Williams, E. 2003 Radiologic sign of lung oedema in the dog and cat. To determine if the descriptions of lung oedema in the literature accurately describe the presence and frequency of radiologic signs, thoracic radiographs of 55 dogs with mitral regurgitation due to endocardiosis (ME), 46 dogs with dilated cardiomyopathy (DCM), 9 dogs with hunting oedema, and 20 cats with hypertrophic cardiomyopathy (HCM) were analysed. The location, type (diffuse or patchy, without or with air bronchograms) and presence of pleural oedema, bronchial wall thickening, widened pulmonary veins, and heart enlargement with subjectively and by the VHS measurement, were determined, and analysed by chi squared test with respect to disease. The dogs nearly always had diffuse oedema, whereas 35% of the cats had a patchy pattern, which agreed with the literature. The common occurrence of cranioventral and caudioventral oedema in heart failure was not described.

Scenerier i glas - ett projekt om mönstermoduler

The present project was initiated with the aim to create pattern modules for use in public environments. My intention was to let the properties, of the specific materials used, have a marked influence on the realisation of the final form. I also wanted to find a material, which is suitable from the perspective of sustainabilityand possibilities to create modules from it. The work was initiated with a study of some candidate materials and many sketches before I finally made my choice. My decision was clear after a visit to the company Glasfabriken inKalmar.

Elevers syn pÄ teknikÀmnet : En jÀmförelse mellan svenska och sydafrikanska elevers tankar om teknik och teknikÀmnet

Tile covered bathrooms require a wellexecuted waterproofing in order toprotect the underlying construction frommoisture. LĂ€nsforsakringar Uppsala paysannually out millions in insurance fordamages related to poor waterproofedbathrooms. In recent years, SP (SwedishNational Testing and Research Institute)investigated and researchedwaterproofing products, resulting ingreater shortcomings of product defectsthan expected.This report raises the problemsconcerning waterproofing and discusseswhy they occur. By studying productinstructions and insurance cases anddamage reports provided byLĂ€nsforsakringar, the most commonproblems concerning bathroomwaterproofing where concluded. Animportant part of the report was tofind out the actual cause to whywaterproofing damages occur.The results of the survey indicate thata common cause of water damage usuallyis related to poor productinstallations.

Biotopskydd av stenmurar : SkÀl för dispens

Stone walls in agricultural land are incorporated in the general protection of biotopes. They are protected because they provide a habitat for endangered species. Therefore it is illegal to carry out proceedings in an area that is included in the protection of biotopes. In order to do that, exemption is needed which can only be granted if there are special reasons. The essay stipulates what these special reasons are.In an exemption errand the interest for nature conservation must be weighed against a public or a private interest.

BerÀkning av direktljud genom homogena betongvÀggar : Densitetens och tjocklekens pÄverkan pÄ reduktionstalet

Today's urban centers become denser, which contributes to higher demands on sound and noise. It is therefore highly relevant to build homes with good sound environment while maintaining living space. This thesis aimed to reduce the current concrete walls and see how the mass law affects the reduction index value and flanking transmissions. Handmade calculations were calculated according to the Swedish standard SS-EN 21354-1, where only air sound was calculated.Calculations we­­­re performed on wall elements with different weights and thicknesses, and compared with results from Bastian.In Bastian calculations of flanking transmissions were also made, this was made to see the impact of the flanking transmission when changing the mass per unit area. Mass law's impact was examined by flanking transmission and the result shows that they are not affected as long as the ratio between the thickness and the density remains the same.A questionnaire survey was conducted to determine the actual sound experience; this questionnaire was conducted on three concrete buildings in VÀxjö.

En jÀmförelse mellan vakuumisolering och traditionell isolering

The purpose of this thesis is to investigate if vacuum insulation panels are a competitive alternative to traditional insulation.Vacuum insulation has been used as insulation in buildings in Germany and Switzerland for a few years. In Sweden the high-performance insulation material is mainly used in refrigerators, freezers and vacuum thermoses. The development is proceeding well and vacuum insulation is becoming more common in the construction industry. Since it is a relatively unexplored material on the market there are many flaws and problems with the material.The questions we have chosen to answer in this report include an increased knowledge of vacuum insulation, various problems that may arise when handling/installation and the pros and cons of vacuum insulation compared to standard traditional insulation.The methods we have chosen to use in this report is a literature study, interviews with various suppliers and manufactures and calculations to show the differences between traditional and vacuum insulation. Vacuum insulation is 5-10 times better insulation than standard traditional mineral wool insulation, mainly at the beginning of its lifetime.Vacuum insulation panels (VIP) have a service life of approximately 50 years, whereas traditional insulation has a service life of approximately 100 years.

Utveckling av hygienfunktioner i diskmaskiner : Desinfektion med hjÀlp av UV-ljus och ozon

This thesis within the field of Integrated Product development at the Royal Insitute ofTechnology, performed at Primary Development Dishcare at AB Electrolux, is supposed to finda solution to enhance the hygiene inside an Electrolux dishwasher. The outcomes of this thesisare functional prototypes to evaluate the efficiency of disinfection by the use of Ultra VioletLight and Ozone.The thesis has followed Electrolux Primary Development process, with delivarables andcheckpoints.Ultra violett light with a wavelength of around 264 nm penetrates through the cell wall ofbacteria and micro organisms and causes a molecular rearrangement of the cells DNA. Thisprevent the bacteria from reproducing and it is considered dead. Commonly used UV-C lampstransmits the wavelength 254 nm which is very close to the optimum for germicidal action.A competitive brand have reacently launched a dishwasher claiming to achieve greaterdisinfection with an UV feature. This dishwasher was tested during the thesis and proven tohave a very low effect on the hygienic result.Two prototypes were devolped and tested for UV disinfection of dishware.

Barns delaktighet och inflytande i den pedagogiska dokumentationen i förskolan

The purpose of this study is to find out what the educators idea of educational documentations in ratio to childrens inclusion and impact in pre-school are, together with the child's own perception of the concepts of documentation. We proceeded from the following issues: What are the significance of educational work according to the teachers? What is the teachers idea of a childs impact and inclusion in educational documentation? In what way do the children have influence over, and inclusion in educational documentation? What are the childrens feelings of the documentations? In order to find answers to our questions, we used qualitative examinations consisting of seven educators and seven children from various pre-schools in Stockholm, and thereby, we have analyzed our results. As our theoretical frame, we used ourselves of Vygotskijs and SÀljö's sociocultural perspective that is about "progress and learning", which is achieved by interaction and cooperation in a social context. The result shows that the aim of educational documentation is to reveal the childs development and learning, and also to involve the parents by putting up documents on the wall.

Framtagning av en rörvÀxlaretill sopsugsystem

The main goal of this project was to develop some sort of a diverter for pipestransporting waste in a vacuum system. This unit was supposed to be both cheap andeasy to serve/exchange worn out parts. With a limited space to install the pipeexchanger, the challenge was to keep it as compact as possible without constructingbends with to small radius or to sharp angles as this would wear out the system a lotfaster than planned. The system was also supposed to be able to handle clothes andscrubs from hospitals. Having too much sharp edges or angles would tear the clothesapart.

Tekniska system i förskolan : 3-5 Äringars uppfattningar om mobiltelefoni

 This report will describe a project between two students from Karlstad University and Markus Norström from Hovercraft solutions. The project aim was to develop a cabin for the hovercraft 380TD. The project was divided into two sub parts; one concerning the design of the cabin and one concerning the engineering. Throughout this rapport you can follow the engineering part of the project. The project has followed a systematic product development process resulting in optimized results for material selection and engineering solutions.

TillfÀllig klÀdförvaring

This degree project has been carried out by Niclas Andersson and Sebastian Zwahlen, students of the Innovation and Design Engineering Program at the Faculty of Technology and Science at Karlstad University. The project was carried out during the spring 2010 and includes 22, 5 ETCS credits.Initially the group had contact with the company Mavis möbler AB. Mavis gave the group the task of developing a new bedroom product. To assess the needs and problems of bedroom behaviors, an extensive questionnaire and several interviews were made. This became the starting point for further work.According to the results uncovered during the market research a vast problem was found with temporary clothing storage.

FörbÀttring av U-vÀrde i trÀkonstruktion för fönster med Aerogel

When constructing a building, a number of aspects must be harmonized in order for it to fulfill requirements ? a building must fulfill requirements such a load-bearing, conservation of energy and a good indoor environment by means of, among other things, moisture proofing .Moisture problems in buildings can affect health negatively. As we are increasingly staying in indoors, demands on a good indoor environment are higher.This work starts with examining moisture problems in slab-on-ground solutions, and then links the various scenarios to moisture problems in a concrete slab of a real building. The building with moisture problems is located in Årby by in BorlĂ€nge and moisture damage was found in the slab at an apartment adjoining wall.By reviewing literature written within the field of moisture problem, making hand calculations and modeling in the program Comsol Multiphysics, judgments are made to find explanations as to why the rise of moisture occurred in the building in Årby by.Generally, the following guidelines may be used to reduce the risk of moisture problems in slab-on-ground constructions:Drying of construction moisture before laying the floor material.Using draining layer beneath the slab, to prevent capillary suction.Using insulation under the slab, partly for comfort and to establish the temperature difference between the ground and the concrete slab.Avoid direct contact between the wood and concrete, due to degradation and fouling smells that normally occurs.If necessary, use additional vapor barrier.In addition to the above, there are various methods for moisture-proof and moisture-monitoring by design or by the method ByggaF suited for the entire construction process various events..

Konstaterade fel i internationella bolag : En studie av begÄngna bolagsskandaler

 Inledning: Under 2000-talet har olika slag av bolagsskandaler uppmÀrksammats inom företags- och finansvÀrlden, som har kommit att pÄverka ekonomin och redovisningen en hel del. Bland dessa finns bland annat energibolaget Enron, telecombolaget Worldcom samt svenska bolaget Skandia. Effekterna av bolagsskandalerna Àr mÄnga och i vÀrsta fall kan företagsledarna fÄ handskas med fÀngelsestraff. Syfte: Syftet med studien Àr att granska begÄngna regelbrott i stora bolag samt jÀmföra de med varandra för att se vilka likheter och samband som finns kring bolagsskandalerna som uppstÄtt.Teori: I den teoretiska referensramen beskrivs teorier om bolagsstyrning, Svensk kod för bolagsstyrning, den svenska modellen för bolagsstyrning, agentteorin samt Sarbanes Oxley Act. Metod: Insamlingen av kvalitativ data har skett via sekundÀr datainsamling, exempelvis via artiklar, tidigare studier, Internet samt böcker. Slutsats: Det finns tydliga mönster mellan de begÄngna bolagsskandalerna som har undersökts i denna studie. Ett av de dessa Àr att ledningen i de flesta fall hÄller i trÄdarna. Motivet till de flesta brotten ligger i grund och botten pÄ att rÀdda bolaget frÄn att gÄ med förlust eller till och med i konkurs, eller att leva upp till stÀllda förvÀntningar pÄ exempelvis Wall Street. .

Karlskrona: örlogsstad och vÀrldsarv : en fallstudie om stadsidentitet

In 1998, 'the Naval Port of Karlskrona' was inscribed as a World Heritage Site by UNESCO and thus, it is equally protected as China?s Great Wall and the Pyramids of Egypt.The essay is a case study of Karlskrona, one of Sweden's most well planned cities, where famous urban planners and architects such as Erik Dahlberg and Nicodemus Tessin the Elder has been involved.Today, Karlskrona is a rather unknown small town in Sweden's outskirts, where population growth has been a problem. When Karlskrona was founded, in the late 17th century, Sweden was a major power. The Blekinge archipelago was in the middle of the Baltic dominion and Karlskrona represented a midpoint in the kingdom. Therefore, Karlskrona has a small town charm with the history and style of a cosmopolitan city.By initially studying how the town?s character of today is expressed, the history of Karlskrona is explored.

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