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Examensarbetets titel: Ratingverktygets betydelse för styrningen av plattformsföretag i delningsekonomin Seminariedatum: 27-05-2015 Ämne/kurs: FEKN90, Examensarbete på Civilekonomprogrammet, 30 Högskolepoäng Författare: Cecilia Brahme & Lisen Hentschel Handledare: Jon Bertilsson Nyckelord: Styrning, Tjänster, Delningsekonomin, Plattformsföretag, Rating Syfte: Studiens syfte är att unders
Vehicles of today are equipped with several driving enhancing systems. The Electronic Stability Program (ESP) controls the brakes of the vehicle to prevent undesirable vehicle behavior. The Anti-lock Braking System (ABS) prevents the wheels to lock up while braking hard. Many vehicles are also equipped with advanced All Wheel Drive (AWD) systems or Limited Slip Differentials (LSD) allowing for the
In the current work, partial denaturation mapping of DNA in nanochannels is studied with the goal to use this technique as a tool for the identification of bacteria. This method has the potential to simplify and speed up the diagnosis of bacterial infections. A partially denatured and YOYO-1-labeled DNA molecule displays a sequence specific pattern of fluorescent and non-fluorescent regions along
In this thesis an investigation of how inaccuracies in measurements affects the field in the cavities used in the accelerator of the European Spallation Source (ESS). New ways to calculate the dynamic detuning and the quality factor of the cavities will also be investigated. This is done by setting up a simulation model in Simulink where the cavities are described by a differential equation. This
This thesis evaluates the possibilities of determining the flight direction of insects by analysing the wingbeat modulation pattern of the backscattered sunlight from insects. The Lund University Mobile Biosphere Observatory (LUMBO) was used during the summer of 2013 for a field campaign at two locations in Skåne, Sweden. The purpose of the campaigns was to study insect activity and biodiversity i
Within the Swedish rail network, maximum track capacity is reached on multiple sections with costly delays as a result. Therefore minimizing the time a train is stationary after a disruption such as overhead line damage or suicide is important. Prior work has mapped stakeholders within the management of the two scenarios, but due to complexity, finding effective means of improvement is difficult.
A manual iterative process is often used in the design process of vehicle suspension systems. This thesis aim to develop a methodology for multidisciplinary optimization of vehicle suspension systems, which can be used to introduce an optimization driven process into the design process of vehicle suspension systems. A Multibody Dynamics (MBD) model of a Strut & Coil Spring suspension system w
The aim for the thesis is to analyze the policy processes for the kilometre-based taxation aimed to regulate trucks heavier than 3,5 tons. The theoretical framework that constitutes this study is Kingdon´s three streams which include problem, policy and politics, and an aspect that describes institutionalized governance. Climate change has been the foremost problem definition for the coupling to t
Small scale projects outsourced to consultants provide their own difficulties when compared to more standard software development. Some of these problems are a lack of infrastructure and customers inexperienced with software development. This thesis is looking at the possibility of implementing continuous delivery in such an environment. The concrete problems are small projects with very little ro
While localization helps to create websites and mobile apps for specific target markets, not as much attention was devoted to the area of affective virtual service agents. The situation is changing due to advances in affective computing and artificial intelligence. Virtual service agents have the potential to change the way how people interact with information technology by transforming control me
Trycksår orsakar onödigt lidande och är ett globalt problem för hälso- och sjukvården. Trots befintlig evidensbaserad kunskap och ett brett utbud av trycksårsförebyggande utrustning, fortsätter trycksår att uppstå. Syftet med föreliggande studie var att identifiera hinder för tillämpning av trycksårsförebyggande åtgärder. En integrerad litteraturöversikt genomfördes. Resultatet byggdes på 11 veten
Denna studien undersöker riskpresentationens påverkan på riskreducerande åtgärder i företag. Studien undersöker Sysav, Sydskånes avfallsaktiebolag och deras riskhanteringsprocess. Intervjuer genomfördes med representanter från företagets fyra huvudavdelningar för att få en övergripande insyn i deras riskhanteringsprocess. Det långsiktiga målet inom Sysav är att kunna jämföra risker mellan avdelnin
This thesis and technical report concentrates on distributed control using a distributed model predictive scheme. The model of a two room house and three room houses is build and a distributed model predictive control (MPC) algorithm is implemented in order to reach specified room temperatures with minimized energy effort in each room. For reference tracking Target Calculation and the delta input
I takt med att jordbruket har intensifierats har arter anpassade till det gamla kulturlandskapet trängts undan, vilket hotar den biologiska mångfalden. Ledningsgator har på senare tid uppmärksammats för sitt värde som ett alternativt habitat för dessa arter och energibolaget Kraftringen vill arbeta för att främja mångfalden i sina ledningsgator. För att utreda vilken biologisk mångfald som finns i
Every car has its own cornering dynamics, some are oversteered, meaning that they respond more to a steering input, and some are understeered, responding less to a steering input. These dynamics depend on a wide range of parameters, the size and weight of a car and the distribution of the weight to name a few. The main part of this thesis is aimed at controlling the cornering dynamics. More specif
The ball-and-beam process is one of the most famous control laboratory processes [1]. At the Department of Automatic Control at Lund Institute of Technology a light-weight ballandbeam process has been made portable by implementing the controls on a laptop with a webcam. The main contribution of this master thesis was the testing and implementation of a variety of vision-based algorithms used to lo
When using industrial robots in production lines both speed and accuracy is of great importance. This thesis investigates how off-line optimization can be used to create references to a control structure with the aim of traversing a given path in as little time as possible, under given input constraints, without deviating from the path. In this thesis Modelica and Optimica is used to formulate and
More than 90 % of all computers are embedded in different types of systems, for example mobile phones and industrial robots. Some of these systems are real-time systems; they have to produce their output within certain time constraints. They can also be safety critical; if something goes wrong, there is a risk that a great deal of damage is caused. Industrial Extended Automation System 800xA, deve
The ModeGraph library offers improved flexibility of hybrid modelling and incorporates powerful properties of the Mode-Automata semantics. Concepts from Finite State Machines (FSM), Sequential Function Charts (SFC)/Grafcet and Statecharts are efficiently utilised to provide a flexible modelling environment that a broad audience can feel familiar with. Being able to guarantee mutual exclusivity of
During the ongoing development of new car models, testing and simulation are used for validation, which involves a large amount of measured data being sampled. To use the tests and simulations in the best way possible, the data collection needs to be effectively worked on. Currently, the evaluation of sampled data is done primarily through studies of numerous parameters in graphs. To avoid problem
