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The potential of Fe-V-oxide catalysts for use in methanol oxidation is explored. Our results show that although FeVO4 is active and selective for formaldehyde formation, it is not completely stable towards volatilization under reaction conditions. Attempts to stabilize Fe-V-oxide were made using titania, alumina and silica supports. However, we observe that although some stabilization is achieved
Background This study identifies a promising, new focus for the crisis management research in the health care domain. After reviewing the literature on health care crisis management, there seems to be a knowledge-gap regarding organisational change and adaption, especially when health care situations goes from normal, to non-normal, to pathological and further into a state of emergency or crisis.
A carbon nanotube forest provides a unique non-stick surface for nanomanipulation, as the nanostructuring of the surface allows micro- and nanoscale objects to be easily removed after first being deposited via a liquid dispersion. A common problem for smooth surfaces is the strong initial stiction caused by adhesion forces after deposition onto the surface. In this work, carbon nanotube forests fa
Economical grade changes are considered for a Borealis Borstar polyethylene plant model, incorporating two slurry-phase reactors, one gas-phase reactor and a recycle area with three distillation columns. The model is constructed in the Modelica language and the JModelica.org platform is used for opti- mization. The cost function expresses the economical profit during a grade change and is formulat
Silica-filled poly(1-trimethylsilyl-1-propyne) (PTMSP) layers were successfully applied for the first time on top of ultrafiltration support membranes and applied in the pervaporative separation of ethanol/water mixtures. Reduction of the thickness of the separating PTMSP top layer and addition of hydrophobic silica particles resulted in a clear flux increase as compared to dense PTMSP membranes.
We present a review and our own experience of the demographic aspects of popliteal artery aneurysms (PAAs), their clinical presentation, the treatment alternatives and associated outcome. The incidence of PAAs varies between 0,1-1%. 95% of the patients are male. 50% are asymptomatic at the time of diagnosis. Annually, 5-24% of PAAs develop symptoms. The clinical presentation varies widely with an
This review of the educational tools developed to promote peace in Uganda sought to answer two primary questions through qualitative elite interviews and secondary research: is the Government of Uganda (GoU) actively trying to promote peace by promoting education? and what are the tools being used? A lens made of peace education theory was employed to assess those questions while the relationship
Parallel kinematik machines are nowadays an important branch of investigation in the robotics field. Its design allows for high speeds, accelerations and tool forces as well as makes them ideals for faster cycle times and high repeatability works. TAU is a parallel kinematic machine from ABB Company with three degrees of freedom. Therefore, it can be positioned anywhere of the workspace but not or
Formula Student is an international inter-universities competition about designing and building a single-seater racing car. One of the most important parts in a car is the suspension system, from the tires to the shock absorbers. This Master Thesis’ report goes through all these parts, looking to theory, different design options, the constraints (rules, economical, packaging, etc) and the final de
The Republic of Moldova is celebrating 20 years of independence and is still almost completely dependent on energy imports from the Russian federation. Renewable energy is in its infancy despite a climate that is well suited for solar and wind energy with 2,300 sunshine hours per year and measured wind speeds up to 8.5 m/s. Moldova has a history of wine production and wide spread usage of more tha
This thesis investigates the driving forces behind the debt level in the Swedish counties, the possibility that the metropolitan areas are different from the rest of the country and presents a short discussion about possible policy actions to address this matter. The results show that housing price and supply, wealth, income and average age have a significant impact on the debt level where a diffe
A new optical interferometer for delay stabilization in attosecond pump/probe experiments is constructed, featuring a custom-made hole-drilled recombination mirror and using a co-propagating HeNe laser for the interference. The interferometer is shown to generate an interference pattern of high enough contrast for delay stabilization. The stability of the measured delay is tested with the interfer
This study focuses on the part of the policy process called implementation. Theorists like Lipsky (1980) and Rice (2012) assign the street-level bureaucrats a major role in this process. The street-level bureaucrats of object in this study are personnel on group homes for unaccompanied minors. Since the children do not have anyone else to look after them, it is the welfare states responsibility to
After the economic recession suffered during the eighties decade, the population under poverty conditions has increased dramatically. With the purpose of amend the situation; President Carlos Salinas has established the biggest anti-poverty program in Mexican history, the Programa Nacional de Solidaridad (PRONASOL). The following three administrations continued the implementation of these policies
Due to the multiple benefits of biogas systems, the Chinese Government has made great efforts to promote the development of biogas systems in rural China, especially household biogas plants and medium and large scale biogas plants to treat manure and waste water from intensive livestock and poultry farms. This thesis conducts a comprehensive literature review to understand the current situation of
The recent events of piracy, especially in the Gulf of Aden raised the concerns of the international community, shipping businesses as well as the marine insurance industries. The drastic increase in piratical incidents and the costs associated with them started a discussion as to the piracy coverage under modern marine insurance policies. Piracy has oscillated through history between being treate
