Avancerad sökning

Hittade 2 uppsatser som matchar ovanstående sökkriterier.

1. 1. E-handelssidoroch laddningstider

   Kandidat-uppsats, Mittuniversitetet/Avdelningen för data- och systemvetenskap

   Författare :Niklas Ekström Liljendahl; [2017]
   Nyckelord :Response time; e-commerce; loading symbol; user attitude; user effectivity;

   Sammanfattning : In this study,   the purpose is to measure how much the response time affect the effectiveness   and usability of the user on e-commerce pages, and to evaluate whether   displaying a loading symbol affects the user's opinion positively or   negatively. This study is based on three theories, Nielsen's (2010) theory of   how response time affect users effectiveness, Galetta et al. LÄS MER

3. 2. Frequency Noise in Widely Tunable Lasers for Coherent Communication

   Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Författare :Gabriela Cristina Dascalu; [2013]
   Nyckelord :;

   Sammanfattning : The objectives of this thesis are to measure the frequency noise of a widely tunable semiconductor laser, determine the main causes for the frequency uctuations and investigate the requirements for laser frequency noise for mQAM modulation formats by means of simulations. The following theoretical aspects are covered: the derivation of the frequency noise spectrum and the detuned loading effect from the rate equations; the shape and the causes of the frequency noise power spectral density; the derivation of the linewidth spectrum from white and 1/f frequency noise; the functionality of the laser and feedback loop used for the measurements. LÄS MER