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536 Uppsatser om Self-compacting concrete - Sida 10 av 36

Dammsäkerhetsanalys via stabilitetsberäkningar för Långströmmens kraftverk : En jämförelse mellan olika dimensioneringsmetoder

A detailed dam safety evaluation (in Sweden called FDU) was performed in 2009 by WSP where stability control was performed for Långströmmen power plant with associated spillways. This evaluation concluded that stability could not be ensured, and risk of sliding occurred. The evaluation is based entirely on the recommendations outlined in RIDAS, the power companies guidelines for dam safety, and it is clear that extensive renovations are necessary to stabilize the dam.In this work, the stability will also be checked with guidance through new proposals on guidelines for concrete dams sliding stability, ELFORSK?s report 08:59. This report considered the guidelines in RIDAS as oversimplified, both from an international perspective, but also with regard to the current state of knowledge regarding dam safety.

Genus och informationsteknologi

This thesis discusses how the education in the Master of Engineering program can change to become more into line for the students needs, especially for the women, both directly in the education situation and later in their occupational roles. This is done using a gender perspective. Both the education and the occupation today is characterised by masculine norms and values. The education lacks gender perspective and is created by men, for men. The thesis gives concrete proposals on how to change two existing courses to better fit the students.

Matematiksvårigheter : Klasslärarens arbetsmetoder

The purpose of my study is to contribute knowledge about how class teachers can work with students who are in mathematics difficulties. The question at issues I have is: Which methods can class teachers in grades 1-3 use to help students with mathematics difficulties? and Which obstacles and opportunities are there in this work? To get answers to my questions, I have read relevant literature and interviewed 3 class teachers in central Sweden. Through my interview I learned that education should include and build on concrete materials and methods. I also got to know that time is the biggest obstacle to helping students with mathematics difficulties. Keywords: mathematics difficulties, methods, obstacles, opportunities.

Islastens inverkan på brottsannolikheten för glidning och stjälpning av betongdammar

There are many old dams in Sweden and, since few dams are constructed today, the main task in risk assessment on the existing dams is often to reduce the risk of failure. RIDAS (Swedish Guidelines on Dam Safety) is used when designing new dams and assess the existing ones. The guidelines include stability requirements for different failure modes, e.g. overturning and sliding, which imply that the load effect from e.g. uplift and ice load need to be less than the resisting loads or moments.

Ljudlandskapets Attribut: Metoder för att bättre förstå och beskriva ljudlandskap

In soundscape research, the field?s methods can be employed in combination with approaches involving sound quality attributes in order to create a deeper understanding of sound images and soundscapes and how these may be described and designed. The integration of four methods are outlined, two from the soundscape domain and two from the sound engineering domain. This study has shown that by combining these methods the understanding of both the entire soundscape and the specific sounds increase. The study also shows that when the methods are used, there is a qualitative change of the description and understanding of soundscapes and the concrete description becomes more elaborate..

Tillämpad informationsteknologi i klassrummet

This bachelor thesis in science Informatics contains the qualifications for the applying of IT in education for students in elementary school, grade 1-3. By empirical case study on an existing elementary school, whose success on IT use is noticed, describes how to apply IT in the classroom in an adequate way. We look at different theoretical frameworks in interaction and design of systems designed for learning purposes, and satisfies their specific needs and situations within the classroom's four walls. The current lack of statistical measurements on students' results and effects of the use of IT in teaching, prevents further improvements. If we simultaneously work to develop more well-designed systems that are designed for this purpose, it is possible that the effects become more and better.

There is no there, there : om platslöshet i fysisk planering

The vizualisation and creating of places is an essential part of physical planning. The notion of places as placeless, is likewise of importance for the creating of places. Some tendencies concerning architecture like modernism, as well as constructions whome don´t fit in their landscape, have contributed to the benaming and experience of places as placeless. Phenomenon as globalization and post-industrialism have in some cases conduced to the withering of the sense of place. With starting-point in litteraturestudies, observations of places and interviews, this is a lucubration concerning the means of placelessness in physical planning.

Ett tidigt möte med matematik : En förskolas arbete med matematik

This research is about the experience educationalists have of children encountering mathematics in a preschool. What is the impact of introducing mathematics in preschool? How do educationalists work with mathematics and how do they experience the children?s interest in mathematics?  The aim of this degree project is to examine how educationalists experience children´s interest in mathematics when they encounter mathematics at an early age. The degree project is limited to educationalists and children within a preschool located north of Stockholm.This research seeks answers to the following questions at issue. Does an early encounter with mathematics in preschool lead to increased interest in mathematics among children?  How can educationalists in preschool work in a appropriate way with mathematics to stimulate children to develop within mathematics and to increase their interest? How does educationalists in preschool experience children´s interest in mathematics?Theories by Piaget, Vygotskij and Dewey were used as well as former research in this subject.To answer the aim and the questions at issue in this research, three interviews was conducted with educationalists at the preschool and recorded with a Dictaphone.

CSR i sociala medier - Möjligheter och risker med att kommunicera CSR i sociala medier

This B.Sc. Thesis examines how Swedish Large Cap companies communicate CSR in social media. We describe the current state of CSR communication in four different social media channels, Twitter, Youtube, Facebook, and blogs. This research, supported by interviews with stakeholders and a quantitative survey, analyses the potential risks and benefits from communicating CSR via social media and provides concrete advice on the development of a CSR communication strategy for social media. Although some benefits have been realized, many companies have failed to truly reap the potential benefits from an effective social media strategy for CSR.

Grundskolans nya kursplan för matematik : en jämförande analys av den nu rådande och den kommande kursplanen för matematik

The purpose of this study has been to compare the present with the future syllabus of mathematics. With a text analytical approach has questions about how the structure is different, how the look at knowledge has changed and which learning theory that characterizes the two syllabus been answered. As a theoretical framework I adopt three different learning theories, behaviourism, cognitivism and the socio-cultural perspective. The pervious research I have looked at is the concept of knowledge an the underlying theories to previous curriculum. During the increase results in the greatest difference seen in the structure.

Metaforen - sportkrönikans byggsten : En kvalitativ studie av hur metaforer användes i Aftonbladets sportkrönikor under en tvåmånadersperiod under 2014

The purpose of this study was to study how metaphors are used in sports chronicles . As a complement, we also chose to study whether there are gender differences in the use of metaphors. We also wanted to take a look at whether journalists tend to mythologize sports stars with the help of metaphors. We have been using a qualitative study in our work. We chose to examine four sports journalists who writes sports chronicles for the newspaper Aftonbladet.

Generation Y:s arbetsvärderingar i praktiken

I och med att Baby Boomers-generationen i allt större grad går i pension upplever företag och organisationer en ökande brist på kompetent personal. Detta har gjort att Generation Y, som ska fylla tomrummet som Baby Boomers lämnar efter sig, blir allt mer attraktiva för arbetsgivare. I media och ekonomiska tidskrifter blir vi ofta påminda om detta faktum, men frågan kvarstår, är det så att de arbetsvärderingar som Generation Y prioriterar faktiskt återspeglas på arbetsplatserna? I denna uppsats har en intervju samt en enkätundersökning genomförts på det för sin motivation prisbelönade företaget Concrete IT. Studien visar att det undersökta företaget återspeglar flertalet av de arbetsvärderingar som Generation Y värdesätter och bör anses vara attraktivt för Generation Y.

Utvärdering av skalväggar som byggnadsmetod

Granskande av ritningar, tidsplaner och kalkyler för referensprojektet Hus N i Växjö har hjälpt oss kartlägga skalväggars för- och nackdelar. Från intervjuer har vi sedan kunnat se liknelser och skillnader om vad olika yrkesfolk i samma bransch tycker, sedan därifrån dragit slutsatser. Det är inte alltid enkelt att avgöra vilken byggnadsmetod som är att föredra för att projektet ska vara kostnadseffektivt, prefabricerat eller platsbyggd. Faktorer som byggnadens konstruktion, årstid, arbetsmiljö, resurser, tid och kostnad ska ta hänsyns till.Genom att planera bättre, öka förtillverkningen, skapa en bättre samverkan mellan byggherrar, konsulter, entreprenörer, underentreprenörer och materialleverantörer, så anser man allmänt att man kan öka industrialiseringen av byggandet. Då man kan få kortare byggtider och lägre totalkostnader. .

Samband mellan hög incidens ämnesomsättningssjukdomar och klövhälsa hos svenska mjölkkobesättningar :

Metabolic diseases in dairy cows are considered to increase the risk for claw lesions, most of all laminitis, sole haemorrhages and sole ulcers, but also to increase the risk for environmental claw lesions. The aim of this study was to compare claw health in 27 Swedish dairy farms, 18 with high incidence of metabolic diseases and 9 with low incidence. Data on claw health status was retrieved from recordings at routine claw trimmings and analysed on herd level regarding the prevalence of: any lesion, interdigital dermatitis, heel-horn erosion, sole haemorrhages, sole ulcer, lameness, abnormal claw shape, and other diseases (abscess in the white line, limb disorders, double sole, laminitic groove, white line disease, interdigital phlegmon, interdigital hyperplasia, toe abscess and verucose dermatitis). Mean prevalence of any lesion for herds with low incidence of metabolic diseases was 48 % and in herds with high incidence 41 %, and there was no statistical difference between the two groups. Mean prevalence for interdigital dermatitis was 2,0 % and 6.4 % in the low and high incidence groups, respectively (p.

Hållbar utveckling med början i förskolan?

Abstract The objective of our study was to get knowledge about how teachers think when they make purchases to preschool. Do they consider making environmentally conscious purchases? Do they work actively to transfer environmental consciousness to the children?We chose to interview nine preschool teachers and one cook in two different local municipalities. Our investigation showed that there was a very low engagement in these issues. The teachers said that they were very strictly bound to already existing public contracts and did not see any possibilities to influence the preschools consumption.The teachers hade no idea that not only their work could result in environmental savings in the school, but also result in attitudes changes among the children, their parents and, in the long term, society in general.

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