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1448 Uppsatser om Technical properties - Sida 14 av 97

Micro plastics in the oceans and their effect on the marine fauna

Small pieces of plastic, termed ?micro plastic? in the oceans derive mainly from degradation of big plastics such as beach littering, but also from sources of direct emission from e.g. beauty scrubbers and synthetic sand-blasting. These micro plastics are ingested by marine animals ? mistaking them for plankton ? or via prey.

"Allt jag gör lär jag mig ju av". En studie om kunskapskrav och kunnande i anslutning till audionomstudenters praktiska utbildning

The audiologists´ knowledge-domain is generally described as a unique combination of medical, technical, social and behavioural sciences. It gives prominence to the importance of an adequate education relating to the knowledge-demands the students´encounter during their trainee-period. However, an important question is if the educational content corresponds to the knowledge-demands during the training? Aim: This study aimed to identify the knowledge-demands of students during their trainee-period. Furthermore, to identify how the students´ actual knowledge was related to the encountered knowledge-demands.

?Vi sitter i kl?m fr?n alla h?ll och kanter. Det ?r v?r vardag.? En kvalitativ studie om chefers digitala mognad i offentlig sektor

This study examines how managers in the public sector experience and manage their digital maturity in the context of digital transformation. The study is based on qualitative interviews with twelve managers and three developers in a municipality in western Sweden and is analyzed based on a theoretical framework that combines individuals digital maturity (DIMI model) with organizational conditions. The results show that managers' digital maturity is influenced by both individual and organizational factors. At the individual level, the importance of digital competence, self-efficacy, and willingness to participate in and lead change are emphasized. At the same time, organizational conditions such as coordination, resources, technical support and clear governance are required.

Simulering av valkar i pappersrullar : och analys av de slappa stråk som uppkommer

A baggy paper web has parts that are longer than neighboring parts. One of the assumed reasons for bagginess is thickness variations of the paper. In the roll the thicker streaks then add up to form a ridge. In the ridges the paper is strained and during storage the strain may become permanent. When the paper unreeled it is then baggy.

ENERGIANVÄNDING PÅ BYGGARBETSPLATSER : Analys av införandet av energieffektiva bygg­etableringar

This report is the final step in the Bachelor of Science program in Building Construction Engineering, Department of Engineering Sciences, Uppsala University.The purpose of this study is to highlight the difficulties and possibilities that could involve the introduction of new energy efficient technologies and changing work around this technology. This study focuses on energy use at a construction site or other temporary workplace where so-called portacabins are in place to address the need for temporary facilities.The method for obtaining knowledge on the subject was mainly interviews with site managers working in Svevia AB's various activities. In conjunction with the interviews I visited construction sites and portacabins if it was possible.My most important suggestion to Svevia AB concerns a better organization in order to make poratacabins more efficient on energy and costs. The company should also evaluate and monitor the energy efficient portacabins that are in operation.Expected energy savings of new technology may not materialize if there are gaps in information, education, technical services and technical maintenance. It is very important to utilize the experiences of new technology.

Elektroniska spel i tidningsfältet : En studie av recensenters förhållningssätt till dator- och TV-spel

This paper considers the roles of critics, newspapers and magazines, in the process ofdescribing computer games and video games as either technical objects or products intendedfor entertainment.The making and ?using? of computer games and videogames originates in small groups ofpeople possessing a lot of knowledge in computers, during a time when these kinds of deviceswere very expensive. But now, the gaming culture has grown and almost anyone in oursociety can own and play a video game. For that reason, one could ask the questions ?are thegames and the people who plays them still parts of a ?technical culture??? and ?do we needsome kind of prior knowledge to fully understand the videogame critics??The critics represent ?the official idea? of what a videogame is, how it works and if it is worthplaying.

Möte i månsken : ett belysningsförslag för Fyristorg

The object of the thesis is to propose a new lighting plan for the square Fyristorg in Uppsala, and to describe the process which have led to it. It all started when I choosed the place together with the municipality of Uppsala. I have been doing research and analyzed how the place and it´s existing lighting works both during different times of the day and also in the evening. After researching the place and it´s existing lighting I´ve decided to put up the following goals fot the new lighting design. 1. The general light level of the place shall be experienced as higher than today. 2. The light level of the place shall be adapted to the light levels of surrounding places. 3. The lighting shall be free from glare. 4. The lighting shall be adapted to people passing by. 5.The lighting shall be adapted to the surrounding architecture. 6.

Utveckling av beslutsstöd för kreditvärdighet

The aim is to develop a new decision-making model for credit-loans. The model will be specific for credit applicants of the OKQ8 bank, becauseit is based on data of earlier applicants of credit from the client (the bank). The final model is, in effect, functional enough to use informationabout a new applicant as input, and predict the outcome to either the good risk group or the bad risk group based on the applicant?s properties.The prediction may then lay the foundation for the decision to grant or deny credit loan.Because of the skewed distribution in the response variable, different sampling techniques are evaluated. These include oversampling with SMOTE, random undersampling and pure oversampling in the form of scalar weighting of the minority class.

Indexeringens dilemma. En analys av förutsättningarna för ämnesindexering av skönlitteratur i förhållandet mellan indexeringen och dess objekt.

This thesis analyses the conditions for subject indexing of fiction by studying the relationship between the nature of fiction and the properties of subject indexing. The analysis is founded on a reading of a recently published Swedish subject headings list and uses a theoretical framework of Adornos theory of modern reason. The study is conducted through a qualitative text analysis in three steps. In the first step the subject headings list is analysed by examining how it provides subject access to fiction by the aspects of form, frame and subject. In the second step of the analysis these aspects of subject access are analysed and discussed by relating them to relevant research of subject indexing of fiction.

Jämförelse Mellan Lätt och Tung Stomme på ett Kontorshus

I början av varje nytt projekt stöter man på de olika alternativ av stomme- och bjälklagskonstruktioner som finns att välja mellan, och frågan blir ofta vilken alternativ som är optimal för den aktuella projekteten.Den optimala lösningen för varje projekt existerar inte, på grund av de olika faktorer och förutsättningar som styr projektet, till exempel: ekonomi, typ av byggnad, terrängtyp etc.Frågeställningen i denna rapport är om limträ eller betong är den mest optimala alternativen som stommaterial i det aktuella projektet.Jämförelsearbetet utgående från förutsättningar har gjorts genom att dimensionera delar av ett projekt med både materialen. Fokus har lagts på skillnader i byggnadshöjd, vindstabilitet och grundläggningen. Resultaten tyder på om man ska bygga ett kontorshus eller flervåningshus vore betong mer lämpligare alternativ jämfört med limträ.Skillnaden i byggnadshöjd finns men är förvånansvärt inte så stor mellan de två olika stommaterial. Dock skillnaden varierar avsevärd när det gäller bjälklagshöjd mellan limträ och betong. Detta pga krav på nedböjning och svikt som ställs på limträbjälklag.Båda stommaterial klara vindstabiliteten utan plintar, som är ganska intressant speciellt med tanke på limträets låga vikt.När det gäller grundläggningen, blev skillnaden betydlig större mellan limträ och betong.Dimensionering enligt Eurokoder har gjorts genom egna handberäkningar och även användandet av programvaran Strusoft..

V?RMEAKTIVERADE TISSUES P? TRANSPARENT PAPPER En j?mf?rande studie vid revlagning

Works on transparent paper, also commonly known as tracing paper, have been described as ephemeral or temporary working documents and they usually number large quantities in archival and museum collections. They have therefore previously been considered of lower priority and can be found in poor condition due to a lack of treatment or suitable storage prospects. In addition, transparent paper can be very sensitive to moisture and reacts by deformation or loss of transparency. Due to the volume of these works and the necessity of treatment, there is a call for simple and efficient conservation methods. A common solution in archives for the treatment of water-sensitive works on paper has been the use of heat-activated tissues as they can be applied without the introduction of solvents. There is little published about the use of heat-activated tissues on transparent paper and is mentioned only briefly in existing literature.

Sa?kerhet och integritet i webbapplikationer : En orientering o?ver sa?ker utveckling

The use of Web applications is a growing area. While the possibilities and functionalities are increasing, so is the complexity of them, together with the threats against them because the complexity also opens up the application to vulnerabilities. It is therefore important for developers to know how a web application can be developed with security in mind.This study?s intention has been to create an introductory documentation of what kind of techniques that exists which can produce higher security, which methods there can be within the development process and what to think about when programming secure web applications. In this paper we have investigated how theoretical manuals in the IT security department handles that area, and interviewed two developers from two different companies to see how they use security in their web applications.The study has an exploratory technical perspective and does not explain how to practically use and interconnecting different security-enhancing technologies, but is more suppose to give a first glance at what is available and sow a seed for those interested to continue reading further about the subject.

Överstora bostadsfastigheter : En undersökning av ändamålsfördelning över storlek och geografiskt läge

Detta examensarbete har genomförts genom en akt- och intervjustudie där syftet varit att se hur många överstora bostadsfastigheter, som inom fem distrikt, bildats under tre år samt till vilka ändamål..

SMS i TV : ett sätt att skapa interaktion i TV?

The purpose with this essay is to examine the phenomenon SMS in TV. Partly by identify the communication process behind the phenomenon and partly by describing it in a editorial and technical point of view. We have analysed the communication process regarding scientific theories in communication, interaction and convergence. With a qualitive approach we have fulfilled four interviews and two small ethnographical field observations. Objects for the interviews and observations have been two Swedish produced debate-programs, broadcasted in TV; Diskus in TV4 and Debatt in SVT2.

Planteringsförbandets inverkan på bestånd av contortatall (Pinus contorta var. latifolia) med avseende på volymtillväxt och virkesegenskaper

At the beginning of the 1970´s forestry feared an imbalance in the future wood supply. Because of this anticipated "timber slump" forest companies undertook a variety of measures to counter this. One of these measures was the introduction of exotic tree species. The choice finally ended up with lodgepole pines which were considered a fast growing tree species compared to our native tree species. Theambition for the new lodgepole pine stands were to run these with rotation periods of between 40-60 years, thus smoothing out the ?timber slump? that was anticipated.

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