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1324 Uppsatser om Virtual force fields - Sida 64 av 89
The economic consequences of Striga hermonthica in maize production in Western Kenya
Kenya is a country of 35 million people and is situated in Eastern Africa. 70% of thepopulation works within the agricultural sector and for many of them food insecurity is amajor problem. Maize and beans are today the staple food for many households. Goodfarming conditions enable two harvests per year and a potential maize yield of 4-5 tons perhectare.A major problem for many farmers in this area is the increase of the weed striga. The weedcauses severe yield losses, and has a major economic impact on smallholders.
Nöjda kunder med risken i fokus : En studie i hur finansiell risk bör förmedlas
During the last decades major changes has occurred at the financial markets, meaning an increasing supply and a greater variation of financial instruments. The saving habits of the Swedish people have gone from traditional bank deposits to investments in equities, funds and bonds. All this together with the great rise in the stock market at the late 90?s has brought words like risk and return up-to-date, and is the background to the development of a new law concerning financial advising which come into force the 1th of July 2004. The contents of the thesis can be described as three bricks, representing the survey questions.
Konst Offentlighet Motstånd Om konst som motstånd i den urbana offentligheten - En fallstudie av konstprojektet (O)önskad samhällsförbättring
This thesis is a cultural theoretical case study of the art project (O)önskad samhällsförbättring.Via an analysis of the project, that is based on theories of power, resistance and contemporaryurban development, it examines the construction of urban space, its impact on public art including the ability of art to initiate evolvement of the urban public space.The last decades art has plaid an important role in what is called the creative city; to become attractive nodal points of the global economy, larger cities increasingly invest in art,culture and creative industry. Simultaneously the urban public space is limited to activitiesand expressions of art that are presumed to create economic growth. This introduces animpression of what is allowed and what is not allowed, possible and not possible, wished andnot wished which, as a consequence, evolves the public space. The events during the artproject and the reactions that followed enlightened these limitations. This tells a story, not only about the structuring process of the local urban space, but also important changes that are created as a simultaneous effect at different levels in society, as well locally as globally.
Elevers uppfattningar av vad man bör uppnå efter avslutad kurs i Idrott och Hälsa A : En studie av två gymnasieskolor i årskurs 2 ? ett elevperspektiv
The purpose of this work is to see if the students, on two separate high schools, understand what skills you should achieve after completing the course in physical education and health A 100 points. The entire study is based on a student perspective. In order to best answer the purpose, the questionnaire used in the "available groups" in schools. The questions for the work are: To what extent and how students perceive what they should achieve after completing the course in Sport and Health A?, Which is the goal, based on the curriculum in Physical Education, that students feel are important to achieve? and how do a comparison like between these two schools on the basis of what students perceive that they must achieve in Sport and Health A?The result shows that the main goal that finds support in the course objectives is an assertion; Has knowledge of what to eat to maintain or improve health, which over 90% of students had checked in.
En museilärares perspektiv : ett pedagogiskt utvecklingsarbete kring Skansens samiska informationsprojekt 2004-2006
Denna studie är en beskrivning av ett pedagogiskt utvecklingsarbete kring det samiska informationsprojekt vilket jag varit ansvarig för inom ramen för mitt arbete som museilärare på Skansens Visningsavdelning. Projektet omfattade tiden 2004-2006. Aktionsforskning handlar om att utveckla och förändra en verksamhet men också att skaffa sig kunskap om hur detta går till och vad som sker under arbetets gång. Det viktigast verktyget inom aktionsforskningen är reflektionen. Jag har reflekterat över vad som kännetecknar mitt museipedagogiska synsätt och utifrån detta studerat övriga synsätt i projektet och deras relation till varandra.
"Alla soldater ner - alla hem" : riskbedömning vid tjänstgöring i utlandsstyrkan ; en fallstudie av insatserna i KOSOVO
Försvarsmaktens ska kunna hantera risker då det är en normal del av verksamheten. Det gällersåväl vid nationell övnings- och utbildningsverksamhet som vid internationella insatser avutlandsstyrkan. Syftet med den här uppsatsen är att beskriv och till del förklarar hurFörsvarsmakten hanterar risker som personalen i utlandsstyrkan kan utsättas för vid sintjänstgöring. För analysen av beslutsprocessen och riskhanteringen har Bolman och Deal Nyaperspektiv på organisation och ledarskap används. Metoden som sedan har använts är endokument och intervjustudie som omfattar svenska bataljoner som tjänstgjort i Kosovo under åren2001 till 2004.Resultatet visar på att Försvarsmakten styr riskhanteringen genom en för ändamålet rationell ochlämplig metod.
ACL-rupturer hos fotbollstjejer ? riskfaktorer och prevention
Non-contact anterior cruciate ligament (ACL) injuries is a serius and traumatic injury to the knee that is common in female soccer players and often force the player to quit or lower the level of activity because of lost stability in the knee or from fear to suffer a new injury. Female soccerplayers have a higher risk than their male counterparts to get an ACL rupture and especially adolescent females have a high risk. The most common causes to a non-contact ACL rupture is side-cutting manuvers and landing after jumping. Every other player with an ACL rupture develops osteoarthritis within 10-15 years from the time of injuryResults: The higher risk for females to incur a ACL rupture is due to smaller intercondylar notch, they?re in the follicular or ovulatory phase of their menstrual cycle, increased knee laxity, dominance in the quadriceps muscles, flexion in hip and valgus movement in the knee.
Likabehandling : Men på vilka grunder?
The Act Prohibiting Discrimination and Other Degrading Treatment of Children and School Students (2006:67) entered into force on 1 of April 2006. The purpose of this Act is to promote equal rights for children and school students and to combat discrimination on the five discrimination grounds of sex, ethnic origin, religion or other belief, sexual orientation or disability. This Act also has the purpose of combating other degrading treatment. According to the Act the organiser of the activity shall insure that there is an equal treatment plan that aims to promote the equal rights for children and school students irrespective of the five discrimination grounds. Discrimination is a result of the social norms which tends to exclude people who does not fit in and therefore considerers as being abnormal.
Robot-Assisterad Gradningscell med Force Control
This thesis includes an energy survey of the Herrgården pre-school, which has a modern heating- and ventilation system, and a comparison with Östers pre-school which has an older system. An energy survey of Östers pre-school has already been done by a group of three students and all the calculations and values have been collected from that survey. As of today, both pre-schools are heated thru district heating. It will be much easier to make smart and feasible energy-saving-measures by first conducting the energy survey.Herrgården pre-school in Gävle houses 81 children, therteen teachers, one cleaner and one cook. It was finished in the middle of 2009 and the staff has been very pleased with the in-door climate.
Kombinerad bekämpning i strid i bebyggelse
Even though battles have been fought in built-up areas for a long time, there have not been any specific theories connected to it. As the world becomes increasingly urbanized, the problem of not having any complete theories with which to analyze military operations in urban terrain becomes bigger. This essay aims to contribute to the field of military theory by investigating if Robert Leonhard?s theory of combined arms can be used in analyzing such operations and to be able to explaining the outcome of them. The main question posed in this essay is; to what extent can Leonhard?s theory explain the outcome of military operations in urban terrain? The method used to answer this question is a comparative method formed as a case study of two military operations in urban terrain, Operation Vigilant Resolve and Operation Phantom Fury, which both took place in Fallujah during the Iraq war 2004. The intention is to test Leonhard?s theory in both cases by assigning the theory several indicators, which are tested in each case. The result shows that the indicators appeared almost equally in both cases, even though one of the operations was said to be a success and the other a failure.
Folkbibliotekets nya roll i det digitala bibliotekets epok: : om e-böcker, Internetbaserade ljud- och talböcker och förbättrad tillgänglighet till folkbiblioteken i Stockholms län
The digital era has led to technical advances that have transformed the role of the public library from being a place that is used only through physical visits and material, into also being a virtual space that can be accessed by users from outside the library through Internet-based access to e-media such as e-books and streamed or downloadable audiobooks.The aim of this study is to examine how the role of public libraries in Stockholm County has changed in the process of developing into digital libraries: how this has affected their organisation, work methods and strate- gies, as well as their accessibility. The theoretical framework of the study draws on Michael K. Bucklands theory of information accessibility, which is based on six factors of access that are determined by different types of barriers. The methodology is based on a combination of quantitative and qualitative methods. Primary data was gathered through an empirical survey, which consisted of a structured questionnaire distributed to most of the public libraries in Stockholm County and semi-structured interviews with selected librarians and experts for further in-depth understanding.
Den nya marknaden i Japan : En fallstudie av svenska cleantechföretags möjligheter på den japanska markanden
The purpose of this study is to facilitate sustainable building by the use of BIM. The goal is to determine which aspects of sustainable building, which can be analyzed mainly with BIM tools, but also other aids.The study is based on literature studies and interviews. The literature review examines aspects important for sustainable building by studying environmental certification systems applicable in Sweden, as well as the BIM tools available on the market to analyze these aspects. The literature also includes the concepts of BIM and sustainability in order to provide a clearer view of its meaning. The interviews have brought the study's overall understanding of the industry and guidance on the subject.The results are presented in a table, where the aspects relevant to sustainable building are listed.
Augmented Reality i mobiltelefonen : En kunskapssammanställning med trafikinriktning
This master thesis is about Augmented Reality (AR), a phenomenon that has existed since the mid-fifties but only recently has become available for the general public. This report is a knowledge compilation about AR, focusing on AR in cell phones and the use of the technology in traffic related situations.AR is usually described as adding a digital layer of information onto the real world. There are different technologies to make virtual images; in cell phones sensor-based and camera-based technologies are the most common ones.In this report, the market of AR applications for cell phones has been investigated. Three use cases have also been investigated in order to get more knowledge about the designers' thoughts and visions.In order to analyze the technology and the applications in a broader and more scientific perspective, two theories has been used: Situation Awareness (SA) and the Service Dominant Logic (SDL). These theories seem useful when reflecting on the Swedish road administrations vision, and to investigate what the applications and the AR technology can contribute to the traffic domain.The conclusions of this thesis are that:- AR can be applied on most of the human senses, but augmenting by visualization is most common.- The market for cell phone applications is growing rapidly: AR applications are relatively new but on the rise.
Klimatsimulering av ett kontorsrum : Hur de termiska stigkrafterna påverkar ventilationseffektiviteten
AbstractIn urban societies people spend more and more time indoors, which put great demands on the indoor environment. If the ventilation is to manage the removal of unwanted substances in the indoor air, a good mixing of the air is required. The question arises that, whether the buoyancy forces will counteract a good mixing of the indoor air or not?This report aims to clear up the difficulties whether you need to consider the buoyancy forces or not, when adjusting a ventilation unit. For studying the indoor mixing of the air a two dimensional model is constructed in COMSOL Multiphysics.
Utveckling av nytt koncept för positioneringsslid
A manufacturing machine at the engineering company Sandvik Coromant has a positioning table which task is to move an item linearly. The positioning table has a linear motor capable of high velocity and acceleration. This makes it possible to achieve short cycle times and a more profitable production.The purpose of this thesis is to bring forward a new concept which is more adapted to the requirements of the positioning table. The reason is that the current positioning table provides an unnecessarily positioning accuracy of 0.01 mm, while the requirement for the positioning accuracy is just 0.1 mm. The goal is to reduce manufacturing and component costs.To develop a suitable solution an approach for the concept development process has been performed.