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The use of supercritical CO, (SC-CO2) for extracting alkylresorcinols from rye bran was investigated. For pure SC-CO2, 35 MPa and 55 degrees C were used. SC-CO2 with 10% ethanol or methanol as co-solvents was tested at four pressure levels (8, 15, 30 and 35 MPa) and two temperatures (40 and 55 degrees C). Experiments were conducted at a constant SC-CO2 flow of 5 g/min for 2 h. For comparative purp
A novel sulfophenylated polysulfone membrane material has been evaluated in a hydrogen/oxygen fuel cell using Nafion-impregnated commercial electrodes. Comparative measurements were performed with Nafion membranes to distinguish between different sources of potential losses. The operational temperatures in the experiments ranged from 60 to 110 °C, and the effect of different humidifying conditions
Time series analysis of herbivore data with weather included as covariate is commonly used as a mean to shed light on the state and ecology of the studied population. Conclusions about the herbivore population are drawn from statistical parameter values and presence/absence in the most parsimonious model. However, this procedure is only reliable if the statistical parameters have general interpret
The paper will argue that the centre-periphery dynamics of the modernisation of sexuality is more complex and difficult to grasp than is usually shown in queer studies and gay history. Existing historiography on the emerging of a modern gay and lesbian identity has failed to study the links between different sites for the emergence of a gay and lesbian subculture. The contacts between Greenland
Human safety and health, environmental and property protection and security concerning hazardous materials supply chain are important issues for many countries, industries and organisations around the world. This paper presents some key results of a comprehensive risk study on hazardous materials supply chain incidents. Based on a risk analysis framework adapted for mari-time transport of packaged
One of the constant characteristics featuring Iran-Britain relations in the post-revolutionary era has been a strong sense of distrust and a demonizing discourse they have employed mostly as an ideological-moral framework to interpret and represent each other’s actions and policies. A great majority of the Islamic Republic officials view the UK and its policies, however favourable or friendly they
Recently Prévot-Julliard and colleagues presented a concept paper on biological conservation strategies using exotic species as a case study. They emphasized the difficulty of integrating conservation into a broad picture that accounts for public perception as well as scientific knowledge. We support this general call for better integration of society in conservation research, but we believe that
An experimental study was performed to investigate the behavior of inclined negatively buoyant jets. Such jets arise when brine is discharged from desalination plants. A turbulent jet with a specific salinity was discharged through a circular nozzle at an angle to the horizontal into a tank with fresh water and the spatial evolution of the jet was recorded. Four different initial jet parameters we
Over the last decades methods of vestibular rehabilitation to enhance adaptation to vestibular loss, habituation to changing sensory conditions, and sensory reweighting in the compensation process have been developed. However, the use of these techniques still depends to a large part on the educational background of the therapist. Individualized assessment of deficits and specific therapeutic prog
When a video sequence is recorded in low-light conditions, the image often become noisy. Standard methods for noise reduction have difficulties with motion. But the interesting parts in a video is often the ones that are moving, for instance a burglar captured in a surveillance video. One approach for denoising video sequences is to use temporal filtering controlled by optical flow, which describ
The eminent dilemma around the relationship between the increasing world population, the need of new fuel sources and environment issues has raised great awareness in the last decades. The European Parliament has set common goals such as the reduction of the greenhouse gases by 20 % by the year of 2020, followed by the requirement of at least 10 % of the fuel has to be biofuel. An adjacent issue i
This Master Thesis will cover the development of the mechanics and design aspects for a new product innovation made for IPsense AB (at Lund Technical University and Ingvar Kamprad Design Center in Lund, Sweden). Due to the sensitivity of the project some information has been left out. The product is part of an IP-based network concept developed for analyzing sound in real time. The total concept
Deep convolutional neural networks are great at learning structures in signals and sequential data. Their performance have surpassed most non-convolutional algorithms on classical problems within the field of image analysis. A reason behind their success is that even though these networks generally need a great amount of examples to learn from, they can be used to learn smaller tasks through diffe
The Spanish newspaper El País wrote on the 25th of November 2015 that Spain has 3,4 million empty homes. Today one sees skeletons of unfinished buildings scattered throughout the country as well as finished buildings uninhabited due to corruption and diminished investment opportunities. We can no longer expect that the buildings we design will inhabit the same program throughout their lifetime. I
Today hazard studies are a self evident part of a project plan while creating a new process or making changes in an existing one in the chemical industry. Therefore it is important to make the hazard studies as efficient as possible. The objective for this thesis was to optimise the hazard study processes based on the main methods presently used at Neste Oil Oyj, Neste Jacobs Oy and Borealis Polym
Abstract Author: Erica Almström Title: “Too personal a tale” – a qualitative study about accommodation educators vision of their work with unaccompanied refugee children. Supervisor: Anders Östnäs The purpose of this study was to illustrate how the work with unaccompanied refugee children is perceived by the employees at a youth accommodation. The study had a qualitative study and the empirical d
Let us talk about the kids – family law social workers’ description of mediation with separated couples Divorce and separation are a part and parcel of modern family life in western society. However the separation process can sometimes get out of hand, especially when children are involved. Long custody fights in the courts are not only harmful to the children but are also costly for society. Med
There is a constant need for the fire and rescue service to develop new methods, materials and extinguishing media to implement the most effective firefighting operations as possible while minimizing environmental impacts. The effect of additives in the extinguishing water is fairly unknown. In this report small-scale experiments shows that additives and fire retardants can provide a significant i
An experimental study was performed, aimed at finding a way to produce single crystalline powder of pure (Fe0.7Co0.3)2B with a particle size of 100-200nm. This was done with the ultimate goal of producing a hard magnetic ferrite powder for powder metallurgical production of permanent magnets. For this study, eight different compositions of iron, cobalt and boron were atomized using atomization by
