It is composed following the Common European Framework of Reference for Languages (A1-B2 levels, understanding of oral and written texts). It turns to good account the composition exercises of Norwegian, Czech, Swedish and Arab students of the previous ten years teaching experience; it promotes Romanian culture and civilization landmarks; it considers probable day-to-day language understanding sit

The emergence of electric bikes (e-bikes) has brought a paradigm shift in shared mobility with a promise to move towards the mission of sustainable cities. Whereas an in-depth understanding of e-bike riding characteristics iscrucial to effectively design the infrastructure for active mobility, it remains an open area of research. We take the first step towards modelling the e-bike navigation comfo

The ongoing COVID-19 pandemic affects people worldwide. The policies in response to the virus range from closure of national borders to curfews for entire metropolises, like Paris. While we can expect severe impacts on the world economy, the consequences of the pandemic for local sustainability transitions are entirely unclear. In this exploratory study, we investigate how the current situation af

Rapporten är en förstudie avseende potential för biogasproduktion i Helsingborg,baserad på vegetation från urbana gräsytor. Rapporten fokuserar på frågor rörande tekniska aspekter på hela kedjan, dvs. från skörd av stadsgräs till leverans av vegetationen till en biogasanläggning. Rapporten innefattar även stad-landperspektivet, och värdet av biogödseln, samt olika nyttor för urbana gräsytor genom

Artikel i Nationalencyklopedin

Solid oxide fuel cells (SOFCs) produce electricity with high electrical efficiency and fuel flexibility without pollution, for example, CO2, NOx, SOx, and particles. Still, numerous issues hindered the large-scale commercialization of fuel cell at a large scale, such as fuel storage, mechanical failure, catalytic degradation, electrode poisoning from fuel and air, for example, lifetime in relation

Efficient and robust control strategies can greatly contribute to the reliability of fuel cell systems, and a stable output voltage is a key criterion for evaluating a fuel cell system's reliability as a power source. In this study, a polymer electrolyte fuel cell (PEFC) system model is developed, and its performances under different operating conditions are studied. Then two different novel contr

Applying pre-processing and geometric transformation, for the generalization of building blocks, can lead to spatial conflicts which are mainly resolved by displacement. However, the conflicts may not be resolved, due to the insufficient space for displacement or the existence of other objects that prevent displacement. This article proposes a novel model combining building block displacement and

Across the world, children are forced to leave their homes for far-flung destinations. This global phenomenon has particular impact in Europe, where there are now more child refugees than since World War II. Education plays an important role for children with extraordinary experiences seeking to build meaningful lives in their new context. This article offers a new theoretical approach to underpin

Binas surrande är en viktig komponent för känslan av sommar. Men, förutom många hyllmeter av litteratur om några vanliga arter av honungsbi och humlor, vet vi än idag förvånansvärt lite om många av de tjugofem tusen arter vi kallar bin. Vissa humlor överlever Grönlands minusgrader och hårda vindbyar, medan de i Amazonas snarare älskar skogens höga temperatur och fuktighet. Vissa arter bor i stora The buzzing flight of bees is a popular summer hit. Yet, outside of a few familiar species of honeybees and bumblebees, these fantastic little creatures are still mostly unknown. With about twenty-five thousand species, bees are a very diverse group. They can be found in drastically different habitats. For example, some kinds of bumblebees endure the freezing temperatures and windswept tundra of G

The paper analyzes the need for structural change in the Haitian economy, an economy where the majority make their living in agriculture – a sector characterized by a severe erosion problem. It is argued that tourism does not offer any solution, other than possibly in the long run. The only alternative is export-based industrialization, since Haiti is a small and poor country. Its comparative adva

John Maynard Keynes became world famous with the publication of The Economic Consequences of the Peace in 1919, a harsh critique of the Versailles peace treaty. As a consequence, Keynes was nominated by German professors in economics for the Nobel Peace Prize three years in a row, 1922, 1923 and 1924. Because Keynes was put on the shortlist of candidates, he was evaluated in an advisory report in