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Determining the effective temperature of cool stars from near-infrared spectra

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

Social perceptions of Personal Income Tax compliance from a Spanish perspective: estimating the impact of its legal framework

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

Motion-emotion metaphors in English, Swedish and Spanish: a cross-linguistic comparison

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 Use of Crowdsourcing as a Strategic Marketing Tool - An Examination of Brand Perceptions and Behavioral Intentions

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

Inductorless LNA and Harmonic-rejection Mixer for Wideband Direct-conversion Receiver

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