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187 Uppsatser om Track following - Sida 2 av 13

Utveckling av en dynamisk Simuleringsmodell av en skotare

The predominant forestry harvesting method is based on the harvester-forwarder method, theharvester folds, branches and cuts trees, and sorts the logs into piles, while a forwarder transportsthe logs to a landing area.This master thesis work is about realization of a dynamic forwarder simulation model, and itspurpose is to provide an integrated forwarder simulation model in MATLAB/SimMechanicswhere the forwarder is based on a concept using pendulum arms to connect wheels and chassis.Active suspension control is developed and implemented into the simulation model, and finallycompared in simulation with passive suspension.In a first step, an integrated forwarder simulation model is developed, containing a simplifiedforwarder model, a tire-to-ground interaction model and a test track model. The simplifiedforwarder model is based a rigid multi-body system with a spring-damper suspension of thependulum arms. The tire-to-ground interaction model calculates the reaction forces, friction fromthe ground and applies the propulsion force. The test track model is a simplified version of thereal test track in Skogforsk. The propulsion wheel torque control is used to regulate theforwarder speed.

Analys, modellering och återskapande av fordonsdynamiska rörelser i tåg

The purpose of this thesis was to analyse, model and finally generate dynamic vehicular motions in a train. The objective with the analysis was to find important motions for a realistic train experience. The motions from the analysis were then weighted against possibilities for generation in a motion platform.A dynamic motion model was created to model the selected motions. The model was implemented in a simulation environment, more specifically MATLAB/Simulink. The simulation environment was used to simulate the model and to generate outputs to control a motion platform.

Tidig extubation efter hjärtkirurgi : graden av smärta och konfusion

Bakrund: Fast track-kirurgi är ett alltmer vanligt förekommande arbetssätt inom hjärtkirurgi. Tidigare studier har påvisat att en tidig extubation har medfört en vinst i patientens rehabili-teringsprocess samt bidragit till kortare vårdtider och sänkta sjukvårdskostnader. Syfte: Syftet med studien är att kartlägga och redovisa graden av smärta och konfusion efter extubation hos patienter som genomgått hjärtkirurgi. Metod: Material inhämtades genom en fortlöpande journalgranskning. Pilotstudien granskade patientjournaler samt övervakningsjournaler i realtid.

En fordonsförares upplevelse av accelerationer som grund för en effektiv simuleringsmodell

Saab Aerosystems has a long tradition and a lot of competence in the field of flight simulation. Their ambition to broaden the market horizon has led to a discussion about also selling vehicle simulation solutions, both for military and civilian use.The aim of this thesis is to investigate the driver?s experiences of the accelerations he or she is exposed to whilst driving in rough terrain. The results may be used as a basis for future decisions and can act as a platform for the construction of an effective simulation model.To investigate the driver?s exposure of acceleration, some kind of dynamic simulation is needed.

Fördelning av frambensskador på ytliga böjsenan hos galopphästar :

Superficial digital flexor tendon injuries are common causes of premature retirement or pre-longed convalescence periods for race horses. The curve gradient at Täby Galopp race track is very small and most races as well as high speed training are done on the left rein. It is believed that the horses left foreleg is under considerably more strain then the right foreleg when being ridden on the left rein during gallop at high speed. During gallop on the left rein the horse puts its entire weight on the left foreleg when regaining ground contact. The purpose of this study has been to find out, through analyzing the statistics concerning the horses that visited the ATG clinic at Täby during a period between January 2003 and September 2006, whether there is a higher frequency of superficial digital flexor tendon injuries on the left leg rather than the right and if so, can this support the theory that the design of the race track in combination with continuous left rein races can be a contributing cause of these injuries. The result of the study shows that 57% of the tendon injuries occurred on the left front leg and 38% on the right front leg. The difference is not large enough to support the above theory of the underlying cause of these injuries..

Motorik hos barn som går montessoriskola : En pilotstudie av elever på en montessoriskola i jämförelse med Skola, Idrott och Hälsa-projektet

AimThe aim of this essay is by using a motor skill track to see if there exists any remarkable difference in the motor skill profiles between pupils from our montessori school and the mean score in the "Nytidstest". The questions at issue we had were: How is the motor skill profile on pupils in year 2 and 3 practicing montessori pedagogy? Is the motor skill profile superior or inferior to the mean score in the "Nytidstest"? What factors, if any, concerning the montessori pedagogy affects the results of the test?MethodWe used a motor skill track consisting of 8 stations sellected from the "Nytidstest" adapted for year 3 (the original test consists of 16 stations). Pupils from year 2 and 3 in our chosen montessori school were tested in groups of 4-5 persons each. We made the tests on two occasions each lasting for 100 minutes at the time.

Beslut om betydande miljöpåverkan för järnvägsprojekt : beslutsmotiveringar, åtgärder och regionala skillnader

This thesis examines the reasons to why railway projects conducted by Banverket (Swedish National Rail Administration) could be expected to cause significant effects on the environment, on which grounds the County Administrative Board and Swedish National Rail Administration base their decisions/assumptions and highlight regional differences between the different Swedish national rail administrations regions. Total 24 railway projects, conducted or being conducted, during the time period 2001 - January 2010 have been analyzed and studied. These projects represent eight different measures/activities which are dispersed throughout all five of the Swedish National Rail Administration´s different regions. Swedish legislations demands that the planner of a new railway project shall first conduct a pre-study and then conduct a public consultation which provides the participants an opportunity to provide input. The County Administrative Board shall then decide if the project could cause significant effects on the environment.

Electrical track system : Utveckling av ett nytt system, innefattande elektrisk golvlist och uttag, som medger flytt av de traditionellt fasta vägguttagen

This degree project concludes the Innovation and Design Engineering programme at Karlstad University. The project was carried out by David Brocker, Erik Hallberg and Andreas Hertzman during the spring of 2006 and corresponded to 15 weeks of work per student. Assigner was Martin Larsson at Arexor and instructor at Karlstad University was Monica Jakobsson.Arexor has a patent to a construction of an electrical skirting board with moveable wall sockets, called Electrical Track System. The lowest parts of the interior walls along the floor are today almost always covered by a conventional skirting board. Arexors patented product replaces that with the possibility to move and increase the number of wall sockets by choice along an electrical skirting board.

En beskrivning av informationsmiljö därdatumstyrda förhållanden råder : En fallstudie av en myndighet och dess informationsmiljö med rättsakter

In this study a case study was conducted at the Transport Agency. The government agency is seeking better alternatives to its current ways of keeping track of important dates stated in legal documents. The agency wants to explore the possibility for an IT-solution for keeping track on those dates. In the case study change analysis was conducted on the vehicle type approval process. Qualitative interviews were conducted with a section manager, vehicle type and component approvers, and with a system administrator and a system manager at the Transport Agency in Borlänge.

Tidig extubering efter hjärtkirurgi : Intensivvårdssjuksköterskans kunskap om tidig extubering och deras syn på faktorer som påverkar tiden till extubering

Early extubation of cardiac surgery patients has become increasingly important. The assessment of the patient before an early extubation is crucial and the intensive care nurses (ICU nurses) in this estimation is there for very important.The aim of this study was to examine critical care nurses' knowledge of early extubation, and what view ICU nurse has about factors that affect the time to extubation of cardiac surgery patients.A quantitative approach with descriptive and comparative design was used. Selection was all ICU nurses at a thoracic intensive care unit who were clinically active in patient care.The study showed that ICU nurses had good knowledge of why an early extubation was essential. However, the knowledge about the unit?s extubation criteria was low.

Arbetsterapeuters kliniska resonemang vid bedömning av arbetsförmåga hos personer med neuropsykiatriska funktionsnedsättningar.  :  En kvalitativ intervjustudie 

Uppsatsens syfte var att beskriva hur arbetsterapeuter resonerar kliniskt vid bedömning av arbetsförmåga hos personer med neuropsykiatriska funktionsnedsättningar. För denna studie användes en kvalitativ ansats. Semistrukturerade intervjuer genomfördes med fem arbetsterapeuter som jobbar mot arbetsmarknaden. Frågeområdena inspirerades av clinical reasoning ?three track mind? där procedural, interactive och conditional reasoning utgör de tre olika tankemönstren.Resultatet redovisades i fyra kategorier och ett övergripande tema som beskriver arbetsterapeuternas kliniska resonemang: Att forma en frågeställning, Att välja bedömningsmetod, Att utforma en slutrapport och Yrkeskompetens.

Upprustningsmetoder för en bankropp : En jämförelse ur ett LCC-perspektiv

In recent years, the Swedish railway track system has been neglected in terms of capacity and maintenance. To adapt the existing system to current traffic load there is a great need for extensive improvement and maintenance. Shortcomings are especially occurring on older embankments running over soft subgrades. To select the most suitable method for reinforcement of the embankment, it is important to evaluate different solutions from a life cycle cost perspective. In long-term perspective, it is often shown that a method with low investment cost causes a higher maintenance cost and a shorter technical lifetime.

Närståendes behov av stöd vid palliativ vård i hemmet : en litteraturstudie

Uppsatsens syfte var att beskriva hur arbetsterapeuter resonerar kliniskt vid bedömning av arbetsförmåga hos personer med neuropsykiatriska funktionsnedsättningar. För denna studie användes en kvalitativ ansats. Semistrukturerade intervjuer genomfördes med fem arbetsterapeuter som jobbar mot arbetsmarknaden. Frågeområdena inspirerades av clinical reasoning ?three track mind? där procedural, interactive och conditional reasoning utgör de tre olika tankemönstren.Resultatet redovisades i fyra kategorier och ett övergripande tema som beskriver arbetsterapeuternas kliniska resonemang: Att forma en frågeställning, Att välja bedömningsmetod, Att utforma en slutrapport och Yrkeskompetens.

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.

Juniorfinansiering i fastighetsbranschen? Fokus kring Mezzanine

Real estate financing is one of the key figures for financial success and fundamental to asuccessful business. Funding will come in several different ways, from existing cashflows andassets to new capital requirements which are aimed at different markets.These markets are constantly changing and since the recent financial crisis, there have beenadjustments and austerity measures which led to that the banks have become more restrictive intheir lending.The real estate industry is characterized by both long-term and short-term thinking that ischaracterized by a solid continuity. Our thesis discuss how the demand is in the real estatebusiness and how mature the Swedish market is for junior financingwith focus aroundmezzanine debt and where are we headed in the near future.We've reached out to the key players in the industry on both the buy and sell side of real estatefinancing but also people between lenders and borrowers that handles transaction advice. Tohave been able to implement the analysisa survey and simulation of an investment calculationwas created. This questionnaire was answered by many real estate companies with senior peoplethat had operational positionsmost associated with corporate commitments.

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