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1081 Uppsatser om Natural cement - Sida 37 av 73
Dödsrikets livshistorier : Benkemiska isotopanalyser på artikulerade och disartikulerade individer i Frälsegårdens gånggrift
The aim in this thesis is to use carbon, nitrogen and sulfur isotope analysis on teeth and bone to track diet and mobility of the population as well as the individual level from the articulated and disarticulated individuals from the passage grave Frälsegården, situated in Gökhem parish in the region of Falbygden, western Sweden.50 human samples were analyzed from tooth, mandibula and femur, together with 11 faunal samples from different bone elements of local wild and domestic animals.The results fall well in line with earlier stable isotope work done on passage grave individuals from Falbygden in stable isotopes: A homogenous group with a diet which was clearly terrestrial and lived on a pretty high trophic level. It also seems that the analyzed individuals deliberately focused their food intake to the cultural and natural, megalith and limestone landscape of Falbygden, and not to its surroundings, even if the passage grave is situated in the outermost areas of the region.A small study compares the sulfur results to with earlier work done on strontium isotopes. The results show that the different methods might provide a deeper understanding in the interpretation of the methods, and therefore suggesting that further work should be done to compare the methods..
Kritisk diskursanalys av skönlitterära genreutbrytningar i folkbibliotekets litteraturförmedlingskontext
This master?s thesis aims to study the practice of separating popular genres of fiction from the rest of the fiction stock, often seen at public libraries. The method being used is critical discourse analysis according to Norman Fairclough?s three-dimensional conception of discourse. The textual dimension of this analysis is the book shelf itself and the sociocultural practice is the everyday practice at a public library of supplying and mediating books to the visitors.
Resonans
This report describes how the system may be exposed to oscillations and how this can lead to resonance. Resonance is a phenomenon that occurs when a system is affected by external periodic oscillations with frequencies close to the system's natural frequencies. Structures subjected to resonance can risk great damage and destruction, why resonance is something that is important to take into account when designing structures. Alternative ways to counteract resonance is to supply damping in the system. Damping means that the resonance decreases instead of letting the amplitude increase.The report discusses some examples on constructions that have experienced the effect of resonance.
Främjandet av expansivt lärande i samband med en organisationsförändring : En studie med utgångspunkt i Engeströms teori
In connection with that the last few decades have been characterized by major changes where also the rate of change has increased, changes in organizations has become a natural part of today's organizational activities. Every change involves a learning challenge and because of that every change is unique, its output is unclear. However, there is much research that highlights various factors critical to creating an effective change, among others internal communication.The purpose of this study is to investigate whether Engeström's theory can be applied to a completed organizational change and see whether an expansive learning has been promoted in connection with this. This is accomplished through interviews with six employees, all working in one of Sweden's leading property companies. Engeström's theory of expansive learning is applied in order to analyze whether learning is promoted in connection with the organizational change.The result of the study shows that Engeström's theory can be applied to a completed organizational change in order to analyze whether an expansive learning has been promoted in connection with this.
Kvinnors erfarenheter av framfödandet vid planerad hemförlossning
Background: The prevalence of sphincter rupture during childbirth has increased in Sweden from half percent to three percent from 1973 to 1993. Women who undergo planned home birth have sphincter injuries to a smaller extent than women who undergo planned hospital births. Objective: The purpose of this study was to describe women?s experience of the last stages of delivery during planned home birth. Design: Inductive content analysis of 150 randomly selected delivery reports.
Finanskrisens påverkan på bilbranschen under hög- och lågkonjunktur : en studie av hur bilbolagen påverkats av den globala finanskrisen
Purpose: The purpose of this thesis is to examine how the major car companies have been affected by the global financial crisis. We would also want to look at how revenues and profits have been affected, and what the consequences have been both within the company and the market in general. It?s also interesting to see how profitability and financial stability has been affected. We had chosen to do a ?before-after? comparison, and we chose to compare the years 2007 and 2009.Boundaries: We have chosen to concentrate on a corporation in the Asian market, more specifically Toyota.
Kreditbedömning : Betalningsanmärkningars påverkan på kreditvärdighet
Credits are considered as a natural financing form for all types of companies. The financial market in Sweden is dominated by four banks and the credit appraisals that are done by these banks are partly based on credit reports from external companies. This thesis? purpose is to increase the knowledge of which the consequences of payment remarks can imply for companies in relation to the banks. A qualitative study has been done to relay to the purpose, through the means of interviews with four companies, four banks, one rating institute and a collecting agency.
Hydratationssprickor i väggkonstruktioner av betong: sprickriskklassificering för WSP Byggprojektering
Hydratationssprickor i betong behandlas vanligtvis vid arbete med grövre konstruktioner. Det är av stor vikt att behandla dessa även i tunnare konstruktioner såsom väggar i hus och industrier, Bernander (1998). Uppkomna sprickor kan bland annat påverka konstruktionens hållbarhet, beständighet, ljudisolering, täthet, utseende och komfort, Bernander (1998). På grund av detta är det viktigt att i ett så tidigt skede som möjligt kunna bedöma om risk för sprickbildning föreligger. Examensarbetet behandlar riskklassificering av hydratationssprickor i vägg-konstruktioner av betong och har utförts på uppdrag av konsultföretaget WSP Byggprojektering Hydratationssprickor beror på flera olika orsaker, men grunden till sprickornas uppkomst är den värmeutveckling som sker då betongens huvudkomponent cement kemiskt reagerar med vatten.
KLIMATTOLERANS HOS URBANA TR?D I G?TEBORG: Analys av klimatgr?nser och framtida klimathot
Urban trees contribute significantly to our society. By providing ecosystem services and a habitat that other urban species and ecosystems depend on, both biodiversity and the people in the city benefit. Some characteristics that the trees possess include functioning as biological filters for the atmosphere and water, as well as positively impacting people's mental health. However, urban trees are challenged by stressors such as pollution and a drier environment, making them particularly sensitive to climate change. The goal of this study was to estimate the expected magnitude of climate change in Gothenburg and compare it with the current urban species' natural climate boundaries to understand the extent of the climate threat and which species appear to be most at risk.
Fiberföstärkning av Limträbalkar
Glulam is a product that was engineered to make use of timber in a more efficient way. Bychoosing timber of similar quality and discarding natural defects during production, thedevelopment of a stronger cross-section is achieved.Carbon fiber is a relatively new material with a high tension capacity. This feature is used toexamine how the bending capacity of the beams improve by adhering carbon fiber laminateson the lower edge of the beamsThe strength of the material is tested with three experiments: carbon fiber on the bottom of thebeam (a), carbon fiber attached to the lower sides of the beam (b) and carbon fiber in thebeam, covered with a layer of wood (c)The results show that the first case, where the carbon fiber is attached to the bottom of thebeam, gave the best result with an increase in capacity of 59 % compared to the nonreinforcedcontrol. The other two cases also show an improvement in capacity, beam-type 3had a capacity increase of 47% and beam-type 4 increased with 25 %Tests were also made with glulam beams reinforced with fiberglass, but these tests were notanalyzed in depth because the purpose was to compare the capacity to carbon fiber. Thisbeam improved its capacity by 40.3%.The tests show that carbon fiber as a reinforcement material for glulam is a good choice whenthere is a requirement for stronger cross-sections in both new production and renovation ofold buildings.
Omsorgspersonalens tankar och arbetssätt kring sexualitet : En kvalitativ studie på grupp- och serviceboenden för personer med intellektuell funktionsnedsättning
The aim of this study was to acquire a greater understanding and knowledge about how care staff at houses with special services for people with intellectual disabilities think and work (handle situations) regarding sexuality. To achieve our goal we carried out nine semi structured interviews using an interview guide. These interviews took place in two different communities in southern Sweden. The theoretical perspectives that were used to analyze the result were Sense of Coherence, Scope of action and Normalization. The result showed that the staff considered sexuality a part of their work and a natural subject to talk about.
1 X 2 : En kvalitativ intervjustudie om unga vuxna som lever "mellan" två kulturer
The study seeks to investigate and understand how individuals create their identity from the perspective of two countries and cultures, and how these affect their current lives today. The focus of the study is aimed at young adults who have mostly or entirely grown up in Sweden to parents that have migrated. The material is based on seven qualitative, semi-structured interviews. The result is then divided into three themes; ethnic and cultural belonging, life impact, and the preservation and passing on of culture. The derivation of the first theme is that there are mixed views regarding the cultural association of the persons interviewed.
Grävlingar : En studie om grävlingar i fångenskap, deras naturliga beteenden och fysiologi
I det här arbetet presenteras en studie från ett projekt som ägde rum i Kolmården djurpark sommaren och hösten år 2003. Projektet bygger på ett uppdrag från jordbruksdepartementet. Det handlade om huruvida grävlingar i fångenskap reagerar i olika stressande situationer. För att kunna undersöka detta har grävlingarnas naturliga beteende studerats under fyra perioder från juni till september samma år. Det som studerats under perioden är grävlingarnas olika beteenden, lokationen i grävlingshägnet samt fysiologiska parametrar så som hjärtfrekvens och kroppstemperatur hos grävlingarna.
Modellstudie av föroreningsretention i Bäckaslövs våtmark : Tillämpning av modellverktygen MIKE SHE WET och MIKE 21
During the nineties, ecological handling of urban storm water became very popular in Sweden. Together with Chalmers University of Technology and two Swedish communities, DHI Water and Environment has been doing research of storm water ponds and constructed wetlands. This thesis work is a part of that research project. The work has been applied at the Bäckaslöv storm water treatment plant in Växjö, Sweden. The plant consists of one storm water pond and a downstream constructed wetland.
LNG - Framtidens fartygsbra?nsle : Vad a?r det som ha?mmar utvecklingen av LNG-drift i Sverige?
Sjo?farten sta?r idag info?r allt stra?ngare miljo?krav. Fo?r att uppna? miljo?va?nligare resultat har allt fler rederier bo?rjat se sig om efter ett miljo?va?nligare bra?nsle. O?stersjo?n a?r ett stort handelsomra?de da?r striktare krav fra?n SECA tra?der i kraft den 1 januari 2015.