Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Jouko Lehto Name of the doctoral dissertation Reinforcement ability of mechanical pulp fibres Publisher School of Chemical Technology Unit Department of Forest Products Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 47/2011 Field of research Paper and Printing Research Manuscript submitted 2 Novem...

A multiple-source approximation system (MSAS) is a tuple F := (U, {Ri}i∈N ), where U is a non-empty set, N an initial segment of the set N of positive integers, and each Ri, i ∈ N, is an equivalence relation on the domain U . A quantified propositional modal logic LMSAS was defined in [1] in order to study MSAS. In this paper, we will present an algebraic semantics for LMSAS. Syntax of the logi...

In this work, different aspects on the re-use of wood based fibres have been studied, focusing on ink detachment of flexographic ink from model cellulose surfaces and changes in porous structure of kraft fibres following different treatments. New model systems for evaluation of ink detachment and ink-cellulose interactions were used. Ink detachment was studied using Impinging jet cell equipment...

In dynamic epistemic logic, actions are described using action models. In this paper we introduce a framework for studying learnability of action models from observations. We present first results concerning propositional action models. First we check two basic learnability criteria: finite identifiability (conclusively inferring the appropriate action model in finite time) and identifiability ...

The entropy budget of an atmosphere in radiativeonve tive equilibrium is analyzed here. The di erential heating of the atmosphere, resulting from surfa e heat uxes and tropospheri radiative ooling, orresponds to a net entropy sink. In statisti al equilibrium, this entropy sink is balan ed by the entropy produ tion due to various irreversible pro esses su h as fri tional dissipation, di usion of...