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473 Uppsatser om Walk speed - Sida 2 av 32
Hastighets- och positionsinterface för motorer
The environmental requirements and laws on combustion engine emissions are very tough today andthey will become even more stringent in the future. To achieve these requirements there are highdemands on the control systems for these engines. An improved precision in the measurement of anengine's speed and position gives the electronic control system an even better timing when it comes tofuel injection and ignition. This makes the engine more fuel efficient, reducing the emissions. This thesisis part of a collaborative project between Hoerbiger Control Systems and subsidiaries.
Automatisk trimning av drivsystemreglering från MATLAB
This master thesis covers the development of an automatic tuning process for the existing speed controller for drive systems. The drive systems are resonant two-mass systems where a motor is used to drive a load connected by a shaft. The developed method relies heavily on system identification and the construction of a complete mechanical model of the process. With this approach, the common problem with poor load speed control that derives from measuring only the motor speed can be addressed and solved for a majority of such processes.The automatic tuning method has along with general test functions been implemented in a complete tool for automatic tuning, testing and performance evaluation and reporting for drive systems..
En studie om styrkor och svagheter hos sudokulösande algoritmer
Sudoku is a popular game of logic in the form of a puzzle. Sudoku puzzles are printed daily in Swedish newspapers. The challenge of solving these puzzles have inspired many programmers to develop Sudokusolving algorithms. These algorithms use different approaches in order to quickly and efficiently solve the puzzles. One such approach is the use of logical strategies initially developed for human players.
Parallell beräkning av omslutande volymer
This paper presents techniques for speeding up commonly used algorithms forbounding volume (BV) computation, such as the AABB, sphere and k-DOP. Byexploiting the possibilities of parallelismin modern processors, the result exceedsthe expected theoretical result. The methods focus on data-level-parallelism(DLP) using Intel?s SSE instructions, for operations on 4 parallel independentsingle precision floating point values, with a theoretical speed-up factor of 4 ondata throughput. Still, a speed-up between 7?9 are shown in the computation ofAABBs and k-DOPs.
Hemlösas situation i Kalmar : Exkludering ur ett genusperspektiv
Title:?Speed cameras - an prevention of crime and a standard forming instrument of control??Authors: Markus HanssonTutors: Bo Isenberg & Carl HultExaminator: Ulf DruggeThe School of Human SciencesUniversity of KalmarThe studys purpose is to get a absorbed understanding for peoples attitude, and effect of speed cameras. The disposition for the study is to integrate earlier studies in the matter, combined with elevating interesting sociological conceptions. As an attempt to understand speed cameras as an instrument of force on the individual have Michel Foucaults concept Panopticon been used to see its effect, and it?s look upon how crime prevention will be formulated, which can give an explanation of why speed cameras are being used as an instrument of control on the traffic area.
Stereoseende i realtid
In this thesis, two real-time stereo methods have been implemented and evaluated. The first one is based on blockmatching and the second one is based on local phase. The goal was to be able to run the algorithms at real-time and examine which one is best. The blockmatching method performed better than the phase based method, both in speed and accuracy. SIMD operations (Single Instruction Multiple Data) have been used in the processor giving a speed boost by a factor of two..
Utveckling av dynamiska farthinder
The aim of this Master of Science Thesis is to develop guidelines and improvementsuggestions of RiNOVA Traffic AB?s dynamic speed bump. The project started with athorough pre study of the design and its function to find out how passing vehiclesaffects the dynamic speed bump. The majority part of the pre study was to createnecessary mathematical models to explain the arisen forces and strains.The results of the mathematical models gave necessary information about the designregarding weaknesses and flaws. The most critical ones where those which interferedwith the design?s performance and reliability, and therefore needed to be corrected.These problems where more thorough analysed and discussed with experts before thefinal guidelines and improvement suggestions where developed.The parts of the design that had to be redesigned were the extension springs and thebearing that enables the dynamic properties.
Fortkörning - en inkomstfråga? : En studie utav inkomstens påverkan på benägenheten att köra för fort
The purpose of the thesis is to investigate whether a higher income make individuals more likely to exceed the speed limit. In addition to income the variables age, sex, perception of the speed of the average driver and offense history for the last three years are taken into account.The method used is based on a survey performed at the mandatory annual motor-vehicle inspection (Bilprovningen). 177 individuals were asked to participate, of these, 124 completed the survey which in turn left us with 117 usable observations.The analysis is based on two forms of regression, a linear regression and an ordered logit regression to confirm the results for the ordinal data.The final model indicates a result where income and age are statistically significant. Sex is considered insignificant for our data material and is excluded from the model. Age has a negative effect on the propensity to exceed the speed limit while income has a positive effect.
Hastighetskameror ? ett brottsförebyggande och normskapande styrmedel? : enkätundersökning kring hastighetskameror
Title:?Speed cameras - an prevention of crime and a standard forming instrument of control??Authors: Markus HanssonTutors: Bo Isenberg & Carl HultExaminator: Ulf DruggeThe School of Human SciencesUniversity of KalmarThe studys purpose is to get a absorbed understanding for peoples attitude, and effect of speed cameras. The disposition for the study is to integrate earlier studies in the matter, combined with elevating interesting sociological conceptions. As an attempt to understand speed cameras as an instrument of force on the individual have Michel Foucaults concept Panopticon been used to see its effect, and it?s look upon how crime prevention will be formulated, which can give an explanation of why speed cameras are being used as an instrument of control on the traffic area.
Fågel fisk eller mittemellan?
The project is a thesis which intends to strengthen the form language and increase the user friendliness of an International Moth. This is a single handed dinghy with only one sail. It sails on two hydrofoils and receives a very high speed compared to its size, and are therefore often referred to as ?the Formula One on water ?. The result is a new concept where the aerodynamic forces have been used to stabilize the boat and relieve the hydrofoils.
Jane's walk som strategi för involvering av allmänheten i planeringsprocessen
I denna studie undersöks det ifall karaktärer med psykopatiskt beteende uppfattas mindre skrämmande och mer lättsamt i animerad form än i icke-animerad form. En litteraturstudie har genomförts som till stor del fokuserar på psykopater i film och de extrema personligheter och beteende som är frekventa i animerade verk. Två klipp har skapats utifrån två icke-animerade referensklipp innehållandes psykopatiska karaktärer spelade av skådespelare med identisk handling, karaktärsbeteende och miljö fast i animerad form. Dessa animerade klipp utvärderas genom strukturerade kvalitativa intervjuer med en fokusgrupp inriktad på föräldrar med barn som är 7-9 år gamla. Undersökningen visar att de animerade karaktärerna upplevs som mindre skrämmande och mer lättsamma än sina icke-animerade motsvarigheter..
Empiriska växelkursmodeller för den svenska kronan - Är det någon som fungerar?
The forecast ability of four well-known exchange rate models for theSwedish krona is tested in this thesis. The models that are tested arethe purchase power parity, the real interest differential model, thesticky-price model and a productivity model. In addition to thebenchmark, the random walk, they are also compared to each other.They are all tested on three different horizons one quarter, two quartersand four quarters. The mean squared forecast error criteria and thedirection of change criteria are used for evaluation of the forecastability. Only in a couple of cases are the forecast ability of thetheoretical based models significant better than the random walk..
Ögårdsparken - en gemensam park för olika kulturer genom aktivitet
Road safety is the result of measures to reduce therisk of accident and injury. (Nationalencyklopedin,2008). In principle, road safety means to arrive saveand sound.Safe traffic in cities is mainly achieved throughappropriate speed. In Sweden, more than half ofall rides happen with a speed above the legal speedlimit (Holmberg, Hydén m.fl, 1996). To reducespeed in order to increase safety requires measureswhich influence a driver?s motives for his orher choice of speed even if these are not rational(Boverket, 2002).
Sakta ner : åtgärder för förbättrad miljö ochtrafiksäkerhet på gator i bostadsområdeni Varberg, idékatalog ochtillämpning
Road safety is the result of measures to reduce therisk of accident and injury. (Nationalencyklopedin,2008). In principle, road safety means to arrive saveand sound.Safe traffic in cities is mainly achieved throughappropriate speed. In Sweden, more than half ofall rides happen with a speed above the legal speedlimit (Holmberg, Hydén m.fl, 1996). To reducespeed in order to increase safety requires measureswhich influence a driver?s motives for his orher choice of speed even if these are not rational(Boverket, 2002).
Jakten på en effektiv intervention : En kommuns satsning i åk 2 på intensiv lästeknisk träning för elever i lässvårigheter
The aim of this study is to investigate the effect of an intervention that focuses on phonics, decoding, reading speed and phonological awareness for 8-9 year old children in reading difficulties. Participants were selected on the basis of screening test results in grade one (decoding and reading comprehension). The participants were divided into two groups, an intervention group (A1, n=10 children) and a control group (A2, n=10). A1 received 30 minutes of intense reading instruction every day for six weeks from special educational needs teachers on top of their usual classroom based reading instruction. The control group received only their usual classroom-based reading instruction.