Estudi de la coautoria de publicacions científiques entre la Universitat Politècnica de Catalunya i l’Aalto University

S'analitza la coautoria de la UPC amb autors vinculats a l'Aalto University, per totes les àrees temàtiques i sense considerar límits cronològics o documentals.

Meri

Voimakas meren aalto. Lasia menee rikki.

Families of periodic horseshoe orbits in the restricted three-body problem

We compute families of symmetric periodic horseshoe orbits in the restricted three-body problem. Both the planar and three-dimensional cases are considered and several families are found.We describe how these families are organized as well as the behavior along and among the families of parameters such as the Jacobi constant or the eccentricity. We also determine the stability properties of individual orbits along the families. Interestingly, we find stable horseshoe-shaped orbit up to the quite high inclination of 17◦

Statistical Analysis and Numerics of Heat Exchanger Models

The identifiability of the parameters of a heat exchanger model without phase change was studied in this Master’s thesis using synthetically made data. A fast, two-step Markov chain Monte Carlo method (MCMC) was tested with a couple of case studies and a heat exchanger model. The two-step MCMC-method worked well and decreased the computation time compared to the traditional MCMC-method. The effect of measurement accuracy of certain control variables to the identifiability of parameters was also studied. The accuracy used did not seem to have a remarkable effect to the identifiability of parameters. The use of the posterior distribution of parameters in different heat exchanger geometries was studied. It would be computationally most efficient to use the same posterior distribution among different geometries in the optimisation of heat exchanger networks. According to the results, this was possible in the case when the frontal surface areas were the same among different geometries. In the other cases the same posterior distribution can be used for optimisation too, but that will give a wider predictive distribution as a result. For condensing surface heat exchangers the numerical stability of the simulation model was studied. As a result, a stable algorithm was developed.

Som alla dar V

Soitinnus: naiskuoro, kitara, alttoviulu, sello.

Sibelius-Akatemian lapsikonsertit 12. 3. 1977

Nauha sisältää kaksi esitystä samasta konsertista.

Rappresentazione di anima e di corpo

Digitoitu 17. 9. 2008.

Sateisen suurtapahtuman anti

Kirjallisuusarvostelu

Filosofiaa liiketaloustieteilijöille ja muillekin

Kirjallisuusarvostelu

Ensimmäinen kattava suomenkielinen historia Virosta

Kirjallisuusarvostelu