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High Precision Positioning and Very Low Velocity Control of a Permanent Magnet Synchronous Motor

The purpose of this report is to evaluate a direct driven permanent magnet motor in high accuracy position and low speed operation. Actuation in this case is usually accomplished by stepping motors combined with belts and pulleys. High accuracy positioning is considered to be within 0.1 degrees and low speed 0.05 degrees per second, while at the same time have a 180 degree step response within 0.5

Population Change and its Effects on Public Spending:Cost Efficiency Behaviors of Swedish Municipalities on the Case of School Expenditures

The paper investigates the relationship between population changes and public spending. The main interest is hereby whether local governments can adjust their public spending in times of population decline. A Swedish case study is conducted on all 290 municipalities in regard to their comprehensive school expenses between 2005 and 2013. The theoretical framework incorporates economies of scale and

Made By Children - A study of the elimination of child labour in Bangladesh’s textile industry

I stygnen i våra kläder kan man ofta finna spår av barnarbete. Klädindustrin i Bangladesh är landets största exportsektor. Det är också den sektor där överträdelser av de mänskliga rättigheterna sker dagligen i förhållande till barnarbete. Olyckor i textilfabriker runt om i landet har orsakat flertalet dödsfall, vilket även tagit situationen gällande landets arbetsrättsliga förhållanden samt använIn the stitches of our clothes one can often find traces of child labour. The garment industry in Bangladesh is the country’s largest export sector. It is also a sector where sever human rights violations take place on a daily basis in relation to child labour. Accidents in textile factories in the country causing numerous deaths relatively recently brought the situation of working conditions to t

The Effect of Temperature on Casein Micelle Structure in Micellar Casein Concentrate

Effekten av temperatur på kaseinmicellstruktur i kaseinmicellkoncentrat. Anders Lindqvist: 2015 Med mål om att optimera produktionen av koncentrerade mjölkproteinlösningar och att få bättre kunskap om mjölkproteinet, kasein, och hur det påverkas av temperaturförändringar studerades förändringarna av koncentrerad mjölkproteinlösning efter att ha blivit utsatt för olika temperaturer. De förändrinThe viscosity of concentrated casein solutions play a vital part in the product quality of medical nutrition as well as for the energy consumption in spray drying. Previous work has shown that a lower viscosity can be achieved through processing (Hemar et al. 2011). This project focused on the effect on temperatures on micellar casein isolate (MCI). A temperature range of 5-90 °C has been studied

"Disruptive Technologies – Mobile Internet & Mobile Application market in China"

Abstract: This paper tried to investigate the internet, in particular mobile internet and mobile application economy in China through theories like catching up, disruptive technologies and leapfrogging concept. The unique development of mobile internet and mobile application economy in China facilitate the motivation to investigate the fundamental characteristics and stories behind mobile app mark

Assessment of radionuclide content in waste barrels using the Canberra In-Situ Object Counting System (ISOCS)

Drift av kärnkraftverk och andra kärntekniska anläggningar resulterar i radioaktivt avfall. Att mäta och karakterisera detta avfall finns det ett stort behov av då en tunna med radioaktivt avfall hamnar i olika förvar beroende på hur högaktivt och långlivat innehållet är. Visar det sig att avfallet är tillräckligt lågaktivt kan innehållet friklassas, d.v.s. att hantering/användning av materialet kIn order to store radioactive waste its contents need to be known. Determining radioactive waste can be achieved by different means. The most common method is using a detector to measure the gamma photons produced by the radionuclides in the waste. A widely used method is Segmented Gamma Scanning, in which the waste package is rotated in front of a detector and then raised to the next vertical seg

Design of MIMO Antenna for a Realistic Mobile Phone Platform Using Characteristic Modes

The Theory of Characteristic Modes (TCM) provides an alternative means of antenna synthesis in compact mobile handsets by taking into account the chassis. This makes it possible to create dual-element Multiple-Input Multiple-Output (MIMO) antennas in mobile handsets with very little coupling and correlation between the two antennas. But apart from the antennas, modern mobile phones are each equipp

A critical reflection on the hegemony of technology and possibilities of including ethics in public consumption

Motivated by the phenomenon of one laptop per child in education at high-school level in the Swedish public sector, this master’s thesis elaborates on the question of ethics in public consumption. My research aims to show that collective actors such as municipalities can be seen as (un)ethical consumers and that they need to become aware of this. What I find problematic is the underlying processes

Reaching across - managing variants of one application on multiple platforms

The number of platforms to support in today's software projects are many and there are a wide range of differences to consider. There are tons of programming languages on the market and each platform, both mobile and desktop, have different preferences on how to develop applications. This do often result in multiple applications, similar to the end user but different to the developers. The sam

Quantification and Implementation of Structural Damping in MBS Flexible Bodies

In multi body simulation (MBS) using flexible bodies, damping is an important model input to be able to predict the response of a structure with sufficient precision. The purpose of this thesis has been to estimate the structural damping of an experimental setup and implement the estimated damping into MBS-models of the setup. In this thesis the modal properties in terms of natural frequencies, m

TRIPS and ICT Developments in Developing Countries: Do ‘One-Size-Fits-All’ Standards Work?

Since the introduction of the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS), its impacts on developing countries have been widely discussed by scholars. In this article, we focus on the impacts of stronger Intellectual Property protection, pushed by TRIPS, on Information and Communications Technology (ICT) potentials and performances of the developing countries at diff

Omdimensionering av Lunds fjärrvärmenät

Fjärrvärmenät för ett energieffektivare Lund Lund är en stad i förändring. En helt ny design på fjärrvärmenätet skulle kunna vara en lösning på många problem. I dagens samhälle ses ett uppvärmt hem som en självklarhet. Men värmen uppkommer inte av sig själv. För att värma sitt hem använder många idag fjärrvärme då detta är både en smidig, miljövänlig och ofta billig lösning. I Lund har fjärrvärmeLund is a rapidly growing city, and in a short time two new research facilities, ESS and MAX IV, will be completed. These facilities will deliver their excess heat to the district heating network of Lund which puts a high demand on the network. Kraftringen Energi AB, which owns and operates the network, are also in the process of replacing old pipes which motivates a through investigation of which