Ramos, Luís Decomposição da amostra e estimação em difusões ergódicas. Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa., 2000.
AbstractThe required results of stochastic calculus are introduced as well as sufficient conditions for a diffusin to be ergodic. Invariant densities are obtained for two families of diffusion. These families belong the Ornstein-Uhlenbeck and Cox-Ingersoll & Ross diffusions. The moments of transition density of the Cox-Ingersoll & Ross diffusion were obtained and it was shown that this density converges to the invariant density. Lastly a technique, based on sample partition, is given for parameter estimation for ergodic diffusion. A numerical application of that technique for the Ornstein-Uhlenbeck diffusion is given. Final remarks and comments are included.
Devedjiev, I., K. T. Petrova, and I. Glavchev. "
Preparation of glycidylmethacrylate."
Journal of the University of Chemical Technology and Metallurgy. 35 (2000): 87-90. http://dl.uctm.edu/journal/node/j2000/ChemTech.htm#tech1.
Ramos, A. M. P., and V. J. G. Lúcio Punching of prestressed flat slabs: Experimental analysis. Vol. 57. International Workshop on Punching Shear Capacity of RC Flat Slabs, 57. Stockholm: Royal Institute of Technology, 2000.
AbstractThe experimental analysis of nine prestressed flat slab models under punching is described and the results are compared with the recommendations of EC2 and MC90. The tests were performed on specimens at a scale 1/3, prestressed with unbonded high strength steel. In the first set, the specimens (AR2 to AR5 and AR7) were only subjected to in-plane compression, to evaluate the effect of the in-plane forces on the punching resistance. The second set of tests (AR8 to AR11) intended to study the effect of the vertical component of the tendon forces near the column in the punching resistance. This work aims to improve the understanding of the behaviour of prestressed flat slabs under punching load and the evaluation of the punching resistance.