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Natural Radiative Lifetimes of the 5p6s^(1)P_(1) , 5p6s^(3)P_(1,2), and 5p5d^(3)D_(1,2,3) Levels of the Sn I Spectrum by Zero Field Level Crossing Spectroscopy

Natural radiative lifetimes of some excited levels belonging to the 5 p 6 s and 5 p 5 d configurations have been measured by the Hanle method. Some of the levels could be optically excited only from the metastable 3 P 1 and 3 P 2 levels of the 5 p 2 ground configuration. These comparatively low-lying levels were sufficiently populated at the temperature necessary to produce a Sn atomic beam. The f

To move ahead - the extension of a life-world

This licentiate thesis is a monography complemented with one published article: “Interactive Design – the desire for autonomous upright mobility: A longitudinal case study, Technology and Disability 19 (2007) 213-224”. My hope is that the combination of the monographic part (with its phenomenological tone, personified and situated), and the more unbarked “Technology and Disability” article (with i

Recursive estimation of the continuous-time process parameters

The problem of continuous-time process parameter identification is considered. Filtered input-output process signals are used to create a linear differential equation governed by the same continuous-time process parameters. The estimation scheme is implemented by sampling the filtered signals and using a recursive least squares algorithm (RLS). The choice of filter leads to different parameter con

Experiment on consumer behaviour in fashion E-commerce – experience and insights

As e-commerce continues to grow, so do the competition and expectations from consumers. To meet these challenges, e-tailers need to become more streamlined and understand the behaviour of their customers. An experiment was performed to gain knowledge about the impact of delivery and returns policies on consumer buying behaviour. Realistic and trustworthy results were generated by using a random sa