Haku
Viitteet 1-10 / 12
The role and corrosivity of lead in recycled wood combustion
(Åbo Akademi - Åbo Akademi University, 2019-08-30)
Three-dimensional printing of wood-derived biopolymers towards biomedical applications
(Åbo Akademi - Åbo Akademi University, 2019-02-22)
Three-dimensional (3D) printing has shown promising potential in fabrication of complex tissue with a structural control from micro- to macro-scale, meeting the requirements of tissue engineering. Wood-derived biopolymers ...
Aqueous-Phase Reforming of Renewable Polyols for Sustainable Hydrogen Production
(Åbo Akademi - Åbo Akademi University, 2019-02-22)
Renewable biomass can be utilized for sustainable hydrogen production via aqueousphase reforming (APR), which implies catalytic conversion of aqueous solutions of alcohols and polyols over transition metals at comparably ...
Supramolecular design of cellulose-based hydrogel beads
(Åbo Akademi - Åbo Akademi University, 2019-03-08)
The degree of polymerization (DP) of cellulose fibres is an important factor to consider during dissolution in water-based solvent system and to design further advanced biomaterials. The lower is the DP, the higher cellulose ...
A set of models for optimization of gas distribution networks : A study in Process and Systems Engineering
(Åbo Akademi - Åbo Akademi University, 2019-06-14)
Natural gas is a fossil fuel with a high potential to become the bridging fuel in the transition towards a sustainable future because of its lower share of carbon compared to oil and coal. A growing popularity of LNG, ...
Aspects on Robust Control and Identification
(Åbo Akademi - Åbo Akademi University, 2019-05-31)
This thesis treats different aspects on robust controller design and model identification techniques. The controller design technique proposes frequency-domain specifications for achieving a fixed-structure controller with ...
Membrane Separations, Extractions and Precipitations in Aqueous Solutions for CO2 Mineralisation
(Åbo Akademi - Åbo Akademi University, 2019-10-11)
The global carbon dioxide (CO2) emissions have been growing rapidly since the industrial revolution starting in the 18th century. This has led to increasing CO2 concentrations in the atmosphere, which in turn heats up the ...
Effects of Temperature Gradient on Ash Deposit Aging and Heat Exchanger Corrosion
(Åbo Akademi - Åbo Akademi University, 2019-11-22)
Boilers firing biomass and/or waste-derived fuel have in general lower electrical efficiencies compared to coal-fired boilers. The root cause for the lower electrical efficiency lies in the high-temperature corrosion of ...
Initial Stages of Alkali Salt Induced High Temperature Corrosion Mechanisms : Experimental studies using a combination of chronoamperometry, scanning electron microscopy, X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry
(Åbo Akademi - Åbo Akademi University, 2019-05-24)
Various environmental problems, such as global warming, are related to the extensive use of fossil fuels. To solve these environmental problems, several renewable energy resources (RES) to substitute fossil fuels have drawn ...
Valuable monomers and oligomers from hemicelluloses
(Åbo Akademi - Åbo Akademi University, 2019-05-03)
Current environmental problems such as global warming and climate change related to greenhouse gas emissions have enhanced industrially relevant research aimed towards a more sustainable future. The biorefinery concept ...