När vi tittar upp mot himlen kan vi urskilja skenet från tusentals strålande stjärnor. En mörk natt kan man också förnimma ett ljussvagt stråk som spänner över himlen; Vintergatan. Stråket består av (för ögat) oupplösta stjärnor, som tillsammans med gas och stoft sammanfogats under gravitationens inverkan för att, över tid, bilda vår hemgalax. Tittar man med ett teleskop kan man se en enorm variatContext. Effective temperature is one of the fundamental stellar parameters. A traditional spectroscopic way to determine it is from optical spectra using excitation balance of Fe-lines. With technological advances and the advent of the next generation telescopes there will be an emphasis on the relatively unexplored near-IR (NIR) wavelength region (1-5 μm). A method to determine the effective tem

This research seeks to find how the Spanish society perceives Personal Income Tax compliance. By following the Slippery Slope Framework developed by Kirchler (2008) the study aims at measuring perceived trust and power of Spanish authorities. Higher levels of trust in authorities and power of authorities are proportional to raised levels of tax compliance. Estimating respondent´s perceptions as to

In cognitive linguistics there are three prevalent theoretical perspectives on metaphor: (universal) conceptual metaphors, discourse metaphors and language-consciousness interactionism. This thesis looked for evidence of support for these positions by conducting an empirical study comparing motion-emotion metaphors in English, Spanish and Swedish, focusing on the source domain MOTION. Following th

The aim of this study is to understand how crowdsourcing campaigns in an online environment can change brand perceptions and behavioral intentions of non-participating customers. Therefore, the thesis connects two major concepts. First the phenomenon of crowdsourcing will be discussed with emphasis an emphasis on its use in marketing. Then crowdsourcing will be lined to the theoretical concept of

In this master thesis, combinations of noise-canceling LNA and harmonic-rejection mixers are investigated and compared to find an optimal inductorless receiver front-end for low-band (600-960MHz) FDD LTE-A network. The work was carried out in a modem development project at Ericsson Modems, Lund. Three receiver versions with different harmonic rejection techniques are compared in terms of noise fig

Rening av avloppsvatten från fosfor med bakterier som växer på plastbitar En ny metod för rening av avloppsvatten från fosfor har designats och utvärderats. Reningsprocessen utnyttjar en speciell bakteries strategi för överlevnad för att på ett miljövänligt sätt rena vattnet från fosfor. Det nya med processen var att dessa bakterier kan växa på små plastbitar. I takt med att antalet människor ökarThe human population is increasing and more wastewater, rich in nutrients, is produced. Increased levels of nutrients such as phosphorus, nitrogen and organic matter in water bodies present a risk for eutrophication, toxicity to the water-living fauna and oxygen depletion. Therefore, it is important to operate the wastewater treatment plants efficiently to limit the release of nutrients to the rec

Background and issue of study: The global financial crisis, climate change, demographic changes, and rising inequality are some of the global trends that put pressure on public leaders and organizations, civil society organizations and corporations to shift to a social and environmental sustainable development. Social innovations are demanded to be both drivers of positive societal change and forc

Betong skadas ibland av frysning. I miljöer där dessutom salt förekommer blir det särskilt svårt för betongen att inte skadas. Skadorna yttrar sig som avskalningar på betongens yta, men den inre strukturen kan vara opåverkad. Utöver den estetiska oangelägenheten kan dessa ytliga avskalningar även bidra till påskyndade korrosionskador och inre frostskador. Syftet med detta examensarbete är att undeConcrete is sometimes damaged by freezing. The damage increases if salt also is present. The damage consists of the removal of small flakes on the surface of the concrete, the inner structure may however be completely unaffected. This surface damage may increase the degree of saturation and ingress of e.g. chloride ions, which may lead to inner frost damage and corrosion on the reinforcing steel.