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In this thesis a concept for a new leg construction, for a force regulated Stewart Platform called Hexapod, was created. The design process for this concept was split into three major parts: the actuator, joints, and the frameless motor, which make up the dynamic elements, the legs, that move the Hexapod. The design of these three parts was approached in a similar fashion, through four phases. T
In the days of IoT and smart homes Bluetooth is in constant development and with it the products that use Bluetooth. Bluetooth mesh is the latest feature and with it comes many opportunities of new products. This report describes the development of an outdoor light system which can be controlled from a website. The system is named Luminaire and consists of a custom built circuit board, an encapsul
The feasibility of implementing a hydraulic load-holding solution in a BorgWarner all-wheel-drive (AWD) coupling was investigated in this work. There exist many sophisticated valve designs intended for load holding applications, but this work focused on simple solenoid valves to reduce cost and complexity. To evaluate the feasibility of the intended load-holding solution, a leakage and pressure dr
A new type of Remotely Operated Vehicle (ROV) has been designed by Marin Mätteknik (MMT) in cooperation with Reach Subsea and Kystdesign AS; the Surveyor ROV. Although MMT is successfully using the SROV in day-to-day operations, no mathematical model describing the system has previously been derived. In this thesis project, a mathematical model describing the SROV is developed through system ident
Background The thesis was initiated by Alfdex, an oil mist separator manufacturer, to explore the organisation’s possibility for expansion by adapting their product to separate air and solid particles. They are currently prototyping a new product without knowing what markets it would succeed in and thus have the need for an expansion strategy. The market possibilities for the new product were exam
Faced with an acute problem of housing options during the 1960s, the Swedish government introduced a nationwide campaign of ‘A Million New Homes’. In order to achieve the aim of the campaign, the construction of these homes depends on cheap and fast building methods which do not result in the homes being energy efficient nor are they equipped with good acoustical properties. As time progress and s
Sex chromosomes are chromosomes that carry vital sex-determining genes. Different sex determination systems and sex chromosomes have evolved from autosomes independently in different taxa; nevertheless, they share strikingly similar characteristics. Sex chromosomes undergo somewhat unique evolutionary processes due to paucity in recombination and transmission through only one of the sexes. As a re
The question of whether the choice of performance measure (PM) matters when evaluating Hedge funds has for a long time been subject to debate . This study explores the same question with a sample of individual monthly data from 669 Hedge Funds over a 10 year period. The standard rank correlation tests usually applied when studying the topic yield weaker correlations between the PM:s in our study t
Our thesis investigates the comparative interpretations of democracy in the opinions of the European Committee of the Region (CoR) and the European Economic and Social Committee (EESC). Using the mixed methods of a qualitative content analysis and a discourse analysis, we assess the extent to which, how and why democracy is unevenly interpreted at the CoR and EESC; relative to their joint remits a
Downscaling of Si-based metal-oxide-semiconductor field-effect transistors (MOSFETs) has contributed to increased microchip device density and to improve the functionality of the electronic circuits. The dimensions of state of art MOSFET is down to a few nanometers. It has been demonstrated that smaller MOSFETs are faster and more energy-efficient. However, with continued device scaling the perfor
Denna studie ämnar undersöka utmaningarna med att bedriva CSR i ett modernt samhälle. Den undersöker hur företags image påverkas när CSR-aktiviteter och CSR-ansvar är uppdelat mellan olika parter. En kvalitativ studie har gjorts om företaget Big Heart där semi-strukturerade intervjuer har använts som metod för att uppnå en djupare förståelse av fenomenet. I intervjuerna har perspektiv från alla paThis study examines the challenges of managing CSR in modern society. It explores how the image of companies is affected in an ethical sense, when CSR activities and CSR-responsibility are divided among a variety of different parties. Through a qualitative study of the company Big Heart, semi-structured interviews was made, including interviews from all parties in order to gain a deeper understand
The goal of this master's thesis is to detect and position sharp sounds using Axis speakers with built-in microphones. Sharp sounds of special interest are gunshots. The system needs at least five speakers to function and is designed for usage in indoor environments. The project follows a pipeline in order to position sound sources containing recording, synchronisation, detection of gunshot in
This work is divided in two parts related to repair and strengthening of engineering structures: the first part deals with the design for strengthening of concrete structures by carbon fiber composites. The work focuses on a design program that had to be corrected before being released on the market according to the following steps: presentation of design rules and materials, development of an own
Den sociala omgivningens påverkan på vår mentala hälsa är viktig att försöka förstå. Mycket forskning har ägnats åt att undersöka hur omgivningen påverkar antalet personer som insjuknar med olika typer av psykiatriska diagnoser. Få har dock undersökt hur omgivningen påverkar symptombilden inom psykiatriska tillstånd som till exempel psykotiska sjukdomar. Psykos är ett tillstånd som kan innefatta t
The first part of the thesis aims to investigate the applicability of JGrafchart and its associated Model of Computation(MoC) for describing sequential control in aircraft primary power distribution systems. The motivation behind this is the need for better modeling tools and in particular support for separation between nominal control and fault handling. Also, as system complexity increases, bett
This master thesis describes how to compensate for the compliance of the Gantry-Tau robot. The main reason for this is to improve the performance of the robot. The compliance is modeled as nine springs, one for each cart and each link. The model seems promising but has only been tested in homing position of the robot but shows a positive result in decreasing the compliance. External control of the
The coalescence of emulsion droplets during the homogenization process is governed by the emulsifier adsorption rate. This is in turn affected by the size and shape of the adsorbing molecule which can be dependant of the aggregation states. The aim of this thesis was to develop a model system suitable for measuring the efficiency of emulsifier during homogenization and to evaluate the hypothesis t
Cancer is today a common disease in our society. There are several forms of cancer and some can be treated with cytostatic drogs. The most common form of cancer among men in the age of 20-35 is testicular cancer. Testicular cancer can be treatedwith cisplatin or oxaliplatin. The therapeutic use of cisplatin was discovered in the late 60's by Barnett Rosenberg. The main target of cisplatin is t
Measuring pharmacokinetic properties is notoriously difficult. The invitro/ex vivo laboratory experiments seek to mimic the physiological responses of the body to the drug, but it rarely gives a good estimate of what happens in vivo. Lipophilicity is traditionally measured by the shake-flask method,in which the distribution of the analyte between two immiscible phases (one organic, one aqueous) is
