Filtyp
Recent studies have shown that increased liquidity is perhaps not always strictly beneficial and that high trading volumes can produce trading noise causing increased volatility above that based on fundamentals. This study investigates whether this applies to the Swedish stock market by analyzing dual-class stocks that have the same cash flow rights but different control rights and different tradi
more and more people being bilingual. Two languages that are often mixed in the United States are English and Spanish. Due to the high population of Spanish speaking immigrants, new words are being formed by mixing the two languages. This can be heard in the areas near the border between the USA and Mexico among other areas. The verb watch in English, which in Spanish would be mirar, becomes wacha
This thesis investigates and examines the factors that affect university students’ acceptance and intention to use Facebook, and then identifies the key factors among them. Information systems are growing rapidly and leading new Web 2.0 technologies into education. Therefore, finding the factors influence the user acceptance and intention to use Web 2.0 technologies in education context is recogni
The migration of people by sea is not a new phenomenon. Since early days, people whose lives have been under threat or people in search of better living conditions often have taken this route. However, today States are trying to prevent every attempt of irregular migration as they have established policies of interception at sea. They often engage in interceptions without taking into consideration
This thesis presents methods for estimation and autonomous control of a hexacopter which is an unmanned aerial vehicle with six rotors. The hexacopter used is a ArduCopter 3DR Hexa B and the work follows a model-based approach using Matlab Simulink, running the model on a PandaBoard ES after automatic code generation. The main challenge will be to investigate how data from an Internal Measurement
The European Spallation Source, ESS, is a joint collaboration of 17 European countries, where the world’s most powerful neutron source will be built for future research within a vast variety of fields. In order to deliver the highly energetic neutrons, protons are accelerated to energies in the GeV range and then collided with a spallation target. This acceleration process requires superconducting
Modified Atmosphere Packaging (MAP) is a technique for modifying internal gas atmosphere of the food package to slow deteriorative reactions inside the package and prolong shelf life of the product. However, due to current limitations of this passive technology, there might be some opportunities for introduction of active MAP through microorganisms. Therefore, the study is conducted on investigati
The possibility to print out metallic components with complex 3D-structures is could revolutionize the industry. In this master’s thesis the cause of process parameters have been investigated for three alloys; stainless steel, 316L, two nickel-based alloys, a derivative of Alloy 738 and 939. Microstructure, porosity, tensile testing, impact toughness, hardness and surface roughness was investigate
This paper presents an exploratory case study of the factors that explain the emergence and growth of social finance in the UK. Social finance refers to an array of activities that address societal issues using finance tools and logic. The practice of social finance manifests itself in the investment in social organisations and enterprises. Investments in social finance, ultimately aim to generate
A combination of acoustic trapping and impedance spectroscopy for micrometer-sized objects is here presented for the first time. Acoustic trapping has proven to be a well-functioning method for non-contact immobilization and positioning of particles or cells in microfluidic channels. The combination with impedance spectroscopy allows for simultaneous electrical measurements on the trapped objects.
When carton packages are formed in a filling machine, there have to be a certain tension in the material package to keep it stretched, however not so much that the material is damaged. In the Tetra Pak A1 filling machine this is achieved through a \emph{web tension-mechanism} consisting of a number of rollers and a pneumatic cylinder. The aim of the master thesis is to get a simulation model for
Movements occur among many different organisms and a suggested theory about the pattern of these movements is called the Ideal free distribution. It states that individuals in a complex area with different quality of the habitats will distribute themselves proportionally after resources in the different habitats, so that they can maximize their fitness. Lake Ringsjön is a complex lake, which consi
Objective: The purpose of the present thesis is to enrich the robustness of a statistical atrioventricular (AV) node model during atrial Fibrillation (AF). The model takes into account electrophysiological properties as the two pathways, their refractory periods and concealed conduction; these pathways are located between sinoatrial (SA) and AV node. It is highly desirable understanding of the AV
High-Order Harmonic generation (HHG) is an alternative and much more compact way of generating x-ray radiation compared to producing it in a synchrotron. In this report a two color inline interferometer is designed to superimpose electrical fields generated by a frequency doubling crystal, for the purpose of reshaping the pulse train generated in the HHG process. The challenges of this design is t
This study investigates how regionalism and regional identity is perceived and promoted in the Oresund region including a specific focus on Malmö, particularly from the perspective of the Oresund committee as an actor. The relevance of this focus is sanctioned by reported growth of regionalism in the Oresund region, and the sparse amount of research in whether organizations and their work could be
This report contains a study of thermal effects in concrete bridges. The purpose is to investigate the relevance of the temperature actions prescribed in the Swedish bridge standard, BRO 2002, for concrete bridges. The analyses are performed for a bridge cross-section model, exposed to climatic effects described by climate data for several Swedish locations. The program HEAT 2 was used to calculat
The age structure and its impact on economic growth is a current issue that concerns all countries in the world. For Sri Lanka, the issue lies within an ageing population and the economic implications of the growing share of elderly. Thus, this paper strives to investigate how the age structure in Sri Lanka affects the economic growth, mainly looking at the ageing population. A time series regress
Global pollinator populations are declining. One of the causes is land use change, which results in reduced flower resources in the landscape. Bumblebees have small stores of nectar and pollen and are therefore vulnerable to loss of flower resources. I test if forbs plantings, which enhance forage resources, can support colony development and reproductive success of bumblebee colonies in Californi
Estonia is facing a challenging security situation, given the broad spectrum of threats and its historical and geopolitical ties to Russia. With that in mind, this qualitative case study aims at providing an overview of Estonia’s security by establishing the similarities and differences between internal and external perceptions and applying role theory to the findings. The empirical data, gathered
