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520 Uppsatser om Cykel ochgångbana. Speed - Sida 23 av 35

Friidrottsungdomars fysiska kapacitet över tid : En retrospektiv studie av intagningstesterna vid friidrottsgymnasiet i Växjö mellan åren 1982 ? 2009

Background: Today when leisure time is spent, spontaneous sports activities decrease, due to a more comfortable way of living and physical capacity among non active adolescents decreases. There for it´s interesting to see how the physical capacity level has changed over time among young people participating in organized leisure time sports.Studies around the world show that young people standing outside organized sport activities have tended to decrease their physical activity levels over the last few decades. Less leisure time is spent doing physical activity and sometimes gets put into context with increased time spent behind the computer or inactivity.Design: A retrospective study of the test results on physical capacity between 1982 and 2009 for students applying to Växjö track and field high school. A total of 635 students (15 years old) have done 11 physical tests during the years. Five of these tests, with enough participants (at least 100) and documentation over at least 10 years, were used in this study.Results: This study shows that young track and field athletes have maintained the same physical capacity from 1982 to 2009.

Nya regler i sjukförsäkringen - fler personer i utanförskap?

The purpose of this paper is to study the rules of the bill 2007/08: 136 "Areformed sick-leave process of increased return to work" as related to therehabilitation chain. In the interpretation of the material I have used the ?practicallegal method? and a minor empirical study has been conducted to find out howRegion Skåne and UMAS adjust their activities to the new regulations.The government aims to reduce sick leave and on March 19, 2008,the above mentioned bill was presented to the Riksdag. The bill is a part of thegovernment's package of measures and contains proposals for a revised sick-leaveprocess. The rehabilitation chain is a part of the package and includes actions witha tighter schedule.The employer is still after the new rules playing a central role in thesick-leave process and must through early and continuous contact with theworkers start the rehabilitation process.

LSD - Hallucination eller flödeseffektiv innovation

Increased competition in the IT industry has sparked a need for developing faster innovation processes with more predictable output. One of the biggest issues when it comes to achieving a faster flow through the innovation process lies in managing its high degree of variation. Proposing a solution to this problem, Lean Software Development (LSD), was developed to provide a framework for how IT companies should organize its software development process to achieve increased speed and quality. This study examines to which extent LSD, as a set of values, principles, methods and tools, can be used to improve flow efficiency in the innovation process. A case study of a multinational IT company was made by conducting ten semi-structured interviews with current employees.

Det hemsökta vardagsrummet : Gestaltning och förmedling av ockulta fenomen i TV-serien 'Most Haunted'

In the 19th century, photography was often employed in attempts to objectively capture evidence of paranormal phenomena. With the advent of television, this tradition came to be coupled with the apparent mystery of distant communication through electromagnetic waves. The television set has often been depicted as intrinsically occult or even haunted.It is therefore natural that television has proven to be an ideal medium to present beliefs, tales, and investigations about paranormal phenomena. Most such presentations have been openly ficticious, but in television the distinction between fact and fiction is often blurred, and the emergence of shows where the crew claims to pursue a serious investigation was inevitable. One of the most successful such shows is the British Most Haunted, airing since 2001.

Skolans organisering och pedagogiska arbete med svenska som andraspråk : ur ett lärarperspektiv

Research has shown that students with another mother tongue than Swedish terminate elementary school with lower grades in all subjects, compared to students having Swedish as a mother tongue. This fact justifies further research on the forms of teaching Swedish as a second language. Attention has been given to the fact that the students with another mother tongue than Swedish have to cope with "dual learning". Parallel to the learning of a second language they need to obtain knowledge in all other subjects. The purpose of this thesis is to investigate how the School organise the work with students having another mother tongue than Swedish, and to find out how teachers in other subjects solve the problem of having students that struggle with "dual learning".

Konstruktion av säkerhetslagerför svänghjul

This thesis is the result of the investigation and solution of a mechanicalproblem regarding flywheel malfunctions. A flywheel is, in short, a devicethat relies on a rotating object?s moment of inertia to store energy overshort time spans. This project is part of the development of a fourthflywheel prototype at the division for electricity at Uppsala university,which uses magnetic levitation to keep a hollow cylinder rotating at veryhigh speeds inside a vacuum chamber. Should the magnets fail however, orsome other error occur that leads to an uncontrolled state of rotation, thecylinder needs to be stabilized mechanically by a device usually referredto as ?back-up bearing?.

Prim, Stadsförnyelse i Barcelona

This final project discusses renewal and upgrading of the area of Prim. It is discussed how this industrial area can be an attractive neighborhood with a varied range of services and commercial trade. Prim is located 2km north-east of the center of Barcelona. The area boarders to a deep railway valley that historically has separated Prim from its neighboring districts. At present there is almost no housing, services or commercial trade within the area and the industry is discontinued or the existing industrial buildings are derelict. There is also a lack of green recreational areas.

Reglering av matarsystem vid höghastighetskapning

Today small metal parts are mass-produced as for example rollers in cylinder bearings. At high velocity cutting the metal is cut with a great force in a scissor-like device. Both precision and repeatability is important to be able to guarantee good quality, but from an economical point of view it is also important to keep a great manufacturing capacity. The part of the process that is most time consuming is when the metal bar, that is about to be cut, is fed to the right position. Therefore it is interesting to examine if the time used for positioning can be reduced.

Cykelparkering i stadsmiljö : en redogörelse för cykelparkeringens komponenter

In recent years many cities have seen an increase in bicycle traffic. This is a development that benefits both the environment and the individual cyclist. When the need for bicycle parking is not met several problems arise such as an increase in bicycle thefts, jammed sidewalks and a decreased interest in using bicycles. My aim with this paper has been to answer the question of how to create parking facilities in an urban environment based on cyclists' needs. Through a literature survey, following the method "Trattmodellen" (the funnel model) the question has been answered and divided under the headings cyclist, bike, bicycle racks, bicycle garage and bicycle operators and hosts.

Elkvalitéproblem vid varvtalsstyrd motordrift i industrimiljö

Övertoner orsakade av varvtalsstyrda motordrifter ger problem i industrisystem. Syftet med studien är att identifiera problemen och ge rekommendationer för att undvika dem. Studien utfördes som examensjobb på KTH för konsultföretaget Ramböll. En litteraturstudie i ämnet kombinerades med elkvalitémätningar på drifter hos Sandvik Mining.Elkvalitéproblem orsakade av varvtalsstyrda motordrifter kommer till stor del av att frekvensstyrningen ger olinjärt strömuttag som, om nätet inte är tillräckligt starkt, påverkar spänningskvalitén. Problemen kan vara driftstopp, störd utrustning och ökat slitage på utrustning för att nämna några.Denna studie visar att vid ändringar i system innehållande övertoner kan framtida övertonshalter approximeras för vissa fall.

Planering av regionala cykelnät : en studie av upplevelsevärden på länsväg 255 mellan Knivsta och Uppsala

I fokus för den här studien står en maskininvestering och råvarorna för pellets, deras täckningsbidrag samt kostnaderna för att tillverka pellets när olika råvaror tas i anspråk. Uppsatsen ger också läsaren en inblick i marknaden för pellets och konkurrensen om träråvaran. I korthet beskrivs också produktions- processen. Underlaget för den bidragskalkyl avseende råvara och investeringskalkyl på flisaggregatet har hämtats från biobränsleföretaget Laxå Pellets, Bruks-Klöckner AB och Allan Bruks AB-CBI. Med hjälp av bidragskalkylen jämförs kostnaderna för potentiella råvaror som kan pelleteras.

Rehabiliteringsträdgården : hur människan påverkas och utformningens betydelse

In today?s hectic society more and more people experience stress and our lifestyle gives us a very limited chance to recover. For some it sometimes goes that far that they get burnt-out, they have pushed themselves to the ultimate limit. There are different methods and treatments to recover but one very efficient treatment is to spend time in a rehabilitation garden. There the patients get treated by therapeutics that uses the garden as the main tool.The fact that gardens and parks have a positive effect on humans have been used by people for a long time but it?s not until recently that the research has taken speed.

Antinutritionella substanser iåkerböna, ärter och blålupin vidutfodring till mjölkkor

There is a shortage of locally produced high quality protein concentrates in Europe andSweden. Local production would decrease the dependency on imported soybean and meet thedemand for organically grown feedstuff from ecological dairy farmers. Field bean (Viciafaba), peas (Pisum sativum) and sweet lupin (Lupinus angustifolius) are good alternatives tosoybean, but contain anti-nutritional substances (ANS) that could reduce their use as proteinconcentrates in dairy cow diets. The aim of this literature study was to review which ANSfield bean, peas and sweet lupin contain and whether they affect dairy cows negatively.Trypsin inhibitors and Chymotrypsin inhibitors (TI) were present in all three crops. TI couldbecome inactivated and degraded in the rumen, but due to the high passage speed of thedigesta, most TI left the rumen in an active state.

Serietecknaryrket

Information technology and globalization has led to an increasing competition and service production has been more and more independent of locations. This has made a market of outsourced telephone costumer service possible. Due to high establishment the market has been saturated and with that price has sunk. Customer companies have the last few years got more negative to outsourcing of their telephone customer service as they through operating the customer service internally want to get closer to their customers.In the empirical study the writers try to figure out which companies the callcenters should try to aim towards to get long and profitable cooperation. This will be done through deducing guiding principles from theories about how different factors around companies costumer service should look like.

Riskanalys över Kimit ABs transporter

Kimit AB är ett ledande företag inom den svenska sprängmedelsbranschen och de transporter sina produkter bland annat mellan LKAB:s gruvor i Kiruna, där fabriken ligger, och Malmberget. Dessa transporter faller under lagen (2006:263) om transport av farligt gods, då några av deras produkter klassas som explosiva och några som oxiderande, beroende på produktens innehåll. Fordon som transporterar farligt gods på väg eller järnväg måste vara märkta med dels storetiketter som visar vilken klass godset tillhör och dels en orange skylt som visa godsets unika UN-nummer samt farlighetsnummer. Från farlighetsnumret är det möjligt att utläsa godset farligaste egenskaper som till exempel om godset är giftigt, frätande eller reagerar kraftigt med vatten.Under ett test som Kimit genomförde tillsammans med några andra aktörer kunde de visa på fördelen med att använda aluminiumtankar under transporten av deras produkter. Då aluminiumtanken gav vika under mycket lindrigare förhållanden när den utsattes för kraftig värme än ståltanken som exploderade och skickade bitar av tanken över hundra meter från platsen.

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