Sökresultat

Electrical machines in electrical vehicles are sometimes put under a lot of stress when for example climbing an uphill road. In order for the machine to cope with the heat generation that comes of running extended periods of time near or at peak power one needs a highly developed cooling system. At the division of Industrial Electrical Engineering and Automation (IEA), located at Lunds Tekniska Hö

Abstract Future climate change scenarios project a water temperature increase of 2 to 5 ˚C for the upcoming 100 years. Simultaneously, north temperate zones will face precipitation changes that will ultimately enhance humic content and water colour in freshwater systems. I hypothesised that increased temperature and water colour would benefit the grazing activity of mixotrophs, and the dominance

As a stage in the development of the next generation of wheel loaders, all systems are evaluated in order to minimize the energy consumption. This master thesis aims to investigate the energy consumption for four linkages with different design. It will also investigate how the energy consumption changes when an electro-hydraulic compensation is added in order to keep the load parallel and what the

To be able to change gears in a transmission it is necessary to remove the torque when disengaging and engaging gears in order not to damage the teeth of the cogs. If the driving torque from the engine to the wheels is interrupted for a longer period of time it can be perceived as very uncomfortable for both the driver and passengers in the vehicle. A gear change can be divided into three main sta

Quantum entanglement between electrons in nanostructures is a key concept of quantum information still waiting to be experimentally demonstrated. In this master's thesis we present and analyze the full counting statistics of the charge transfer of a sextuple quantum dot system which works as both entangler and detector of spatially separated electrons. Under certain resonance conditions the sy

Seminariedatum: 2014-06-04 Ämne/kurs: Examensarbete i Strategic Management på kandidatnivå, 15 HP. Författare: Siri Albrecht, Adam Svingstedt och Hugo Wennberg Handledare: Magnus Nilsson Nyckelord: E-handel, Returhantering, Returns Management (RM), Avoidance, Gatekeeping, Konkurrensstrategi, Supply Chain Management (SCM) Syfte: Att undersöka i vilken utsträckning gatekeeping och avoidance integ

With the diminishing reserves of oil and the growing public concern for environmental issues, the end of gasoline powered vehicles is getting closer each year. To prevent this from causing the personal and comfortable way of transportation mankind has gotten used to, to die with them, an alternative without the downsides of the gasoline engine must be developed. The environmentally friendly electr

In 1996 the European Union adopted the Seveso II Directive. The Directive stated actions to be taken in the process industry in order to prevent and limit the impact of serious chemical accidents. In the Directive it is clearly stated that domino effects shall be considered, but the level of detail required is not specified. Due to that fact and the high degree of complexity linked to domino e

Reduction of the cleaning time is an important issue for companies using large tanks. A common solution is a stationary pipe going into the tank with a cleaning nozzle mounted on the end. Today the spray pattern of most cleaning systems is fixed. It would be beneficial to adjust the cleaning cycles so that the most soiled places of the tank get extra attention without increasing the total cleaning

Climate change is exponentially becoming one of the most pressing issues of our time. While it is an issue that plaques the international community it is an issue that needs to be addressed on all levels. Local government has been highlighted as the level closest to the people and is uniquely positioned to instigate a range of activities that directly address climate change and sustainability. Thi

Happiness is a relatively new discipline within economics. Traditionally, economists have not paid too much attention to it since they considered that both indicators and theoretical assumptions in which this discipline was based were not neither reliable nor useful for policy recommendations. However, especially in the last decade, there has been extensive research which, if not proved, at least

In this study I have examined which conditions that play a role in the conservation of natural environment. The results in this paper have been analysed from interviews that I have conducted with conservation officers working with conservation efforts in local municipality's in southwest Skåne, Sweden. In the process, I have come to the conclusion that the nature conservation the conservation

Innovation is a dynamic process that has been extensively studied by researchers across different fields: a variety of frameworks and mental models have been produced as a result of efforts to measure and manage innovations. However, despite its obvious importance to the success of an innovation process, the “culture” of innovation remains an uninvestigated “black box”. Our thesis examines the com

The current research addressed the daily reality of Roma women from multiple perspectives. The paper gradually revealed the sociological challenges that the individuals must face and the way the state undertook the responsibility to intervene by means of law and policies in relation to the human rights system. The findings were based on relevant legal and policy documents, multidisciplinary litera

Returning refugees are an important aspect of economic reconstruction-, and the reconciliation process after the civil war. For this reason, extensive research has been done on the relationship between return migration and economic performance. From those studies, some identify a positive relationship while others find a negative relationship between returned migrants and their economic performanc