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Anisotropy in crystal growth of III-V semiconductor nanowires can be enhanced by the assistance of a liquid particle. During the past decades, selected scientific works have reported a controlled change in the nanowire growth direction by manipulation of the assisting droplet. Although these results are interesting from an engineering point of view, a detailed understanding of the process is neces
Over the years several models have been developed to describe hydrophobic pervaporation. The different approaches can be generally classified as process-orientated or membrane-orientated. Among these models the resistance-in-series model (RSM) has a unique position since it combines process conditions with membrane parameters. The aim of this work is to demonstrate the extension of the RSM to cove
The new estimates of the Maddison Project show that GDP per capita ratio at purchasing power parity (ppp) between Bolivia and Finland has changed from 0.68 ca. 1850 to 0.16 in 2015; similarly, that between Chile and Norway from 0.65 to 0.28. The aim of this article is to present a review of the literature and available quantitative evidence to understand how these extreme differences became possib
Diesel engines are by far the most common means of propulsion aboard ships. It is estimated that around half of their fuel energy consumption is dissipated as low-grade heat. The organic Rankine cycle technology is a well-established solution for the energy conversion of thermal power from biomass combustion, geothermal reservoirs, and waste heat from industrial processes. However, its economic fe
Information and communication are increasingly being conveyed over the Internet. The forms of service and commerce that we are familiar with today will most likely be reduced in scale in the future to be replaced by new electronic solutions. For this reason, it is important that new technology be designed so that as many people as possible can utilize it. Accessibility to a range of services and i
This paper considers the role of digital recording methods and visualisation tools in the primary recording of archaeology at the Neolithic tell site of Çatalhöyük, Turkey. Operating within and building on Çatalhöyük Research Project's understanding of reflexive methods (Hodder 2000b, 2003; Berggren and Nilson 2014; Berggren et al. 2015) we incorporate elements of science and technology studies (P
Kisel är ett vanligt förekommande grundämne som gärna bildar en oxid, nämligen kiseldioxid. Kiseldioxid träffar man i hög utsträckning på i det dagliga livet. Det är nämligen huvudbeståndsdelen i sand, glasvaror, kvarts, många keramiska material men också i den färgskiftande ädelstenen opal. Det finns också flera grupper av porösa kiseldioxidmaterial, till exempel så kallade zeoliter som har myckeThe formation process of porous silica materials is an intricate process, involving a number of components that interact to form a highly organized material. Both zeolites and mesoporous silica materials typically require the presence of organic structure director agents (SDAs) around which the silica network polymerizes. For zeolites the SDAs are molecular and for mesoporous silica the SDAs assem
In this thesis we have performed a systematic atomic scale characterization of model catalysts under pressures ranging from UHV to atmospheric ambient. By using a unique approach, linking UHV and high pressures studies by combining traditional electron based techniques with novel high pressure in situ probes and ab initio calculations, the surface structure of the different model catalysts could b
In this paper we develop an Enterprise Systems Implementation Methodology in Action framework. The framework is grounded in contemporary views on methodology in action (theoretical grounding) and enhanced by an empirical study (empirical grounding). The notion of Implementation Methodology in Action, as articulated in this paper, integrates two complementary views that conceptualise a methodology
Popular Abstract in Swedish Fysiologiska och biokemiska processer i den levande kroppen kan studeras mha spårämnestekniken positronemissions tomografi (PET). Den bildgivande tekniken PET kräver radionuklider som sönderfaller genom att sända ut en positron. Positronen är antimateria till elektronen. När positronen har en mycket låg rörelseenergi och träffar på en elektron, ombildas deras vilomassor
Modeling and understanding the vortex breakdown is a key issue of modern Lean Premixed Combustors. The main difficulty of the problem is the unsteady behavior of this type of flow: Large structures resulting from vortex breakdown and the swirling shear-layers, affect directly the flame stabilization leading to heat-release fluctuations and combustion instabilities. Consequently, one needs to captu
Modelling is a fairly mature technology that is already being adopted by industry. Unfortunately the tools for supporting Model-Driven Engineering are not at the same level of maturity. In particular merge tools that are an important help for collaboration lack a lot to be desired in providing the support that is needed on industrial projects. Current model merge tools and research approaches focu
Unlike most jellyfish, box jellyfish (cubomedusae) are highly visually orientated. They are agile swimmers and use visual information to avoid obstacles and orientate themselves. They have an elaborate visual system which consists of four sensory structures called rhopalia, each holding six eyes of four morphological types: 2 camera-type eyes (upper and lower lens-eyes) and 2 lesser pigment cup ey
Eosinophils have a characteristic content of cationic proteins, stored in core-containing specific granules and released at sites of inflammation; coreless granules (sometimes called primary) are present in eosinophil promyelocytes. In order to determine a possible relationship between the two granule subsets, immunoelectron-microscopic techniques were used to determine the presence and precise in
The basic hypothesis is that mind is an emergent property of the processes that produce natural language expressions. The shape of the mind of a particular person can be discovered through the mechanisms forming the corresponding language space. Although covered by textual surface properties, this space is approachable with VERTEX, which is a new version of Perspective Text Analysis (PTA). Due to
Popular Abstract in Swedish Ända sedan Charles Darwin 1859 publicerade Om arternas uppkomst har just frågan om hur en art delas i två varit en central del av evolutionsbiologin. Darwin hade under resorna på HMS Beagle iakttagit hur bland annat härmtrastar och finkar på Galápagos varierade mellan öarna och drog slutsatsen att flera närbesläktade arter inom grupperna delade samma ursprung. Darwin beThe process of speciation is a cornerstone in evolutionary biology. In Darwin’s On the Origin of Species, he described how he imagined that a new species would evolve to fill an empty niche. This focus on ecology shifted with Mayr towards the importance of isolation, and for many decades the geographic modes of speciation were debated. Speciation in sympatry, i.e. without any isolation between the
Succinate:quinone reductase (SQR) is an enzyme in the respiratory system of aerobic cells. SQR catalyzes two reactions, the oxidation of succinate to fumarate and the reduction of quinone to quinol. These reactions are coupled by electron transfer within the enzyme from the site of succinate oxidation to the site of quinone reduction. Some enzymes reduce ubiquinone (exergonic reaction) whereas oth
