Haku
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Technology Development and Techno-Economic Analysis of Hydrogen Production by Thermal Decomposition of Methane
(Tampere University of Technology, 2017)
Artikkeliväitöskirja
Artikkeliväitöskirja
The transition to the hydrogen economy has been proposed as a sustainable solution for the simultaneous depletion of fossil fuels and the increase in global energy demand since the 1970s. However, the current fossil ...
The Role of Inorganics in Biomass Gasification: Catalytic Effects on Char Reactions and Toxic Emissions
(Tampere University of Technology, 2017)
Artikkeliväitöskirja
Artikkeliväitöskirja
This thesis studied the role of inorganic elements in biomass gasification, focusing on catalytic effects in char gasification and removal of toxic metals from the product gas. A combination of experimental, including ...
Bioelectrochemical Recovery of Energy and Metals from Simulated Mining Waters
(Tampere University of Technology, 2017)
Artikkeliväitöskirja
Artikkeliväitöskirja
Extremely acidic water with high metal concentrations is often produced during mining and processing of sulfidic ores. Sulfur-oxidizing microorganisms contribute significantly to the acidification of the water streams and ...
Charge Carrier Dynamics in Solar Water Oxidation
(Tampere University of Technology, 2017)
Artikkeliväitöskirja
Artikkeliväitöskirja
The search for sustainable energy sources is one of the greatest problems facing mankind in the 21st century. Most renewable sources do not have adequate potential to cover the growing need for energy in order to sustain ...
Narrow-Linewidth DFB and DBR Lasers with Surface Gratings Fabricated Using UV-Nanoimprint Lithography
(Tampere University of Technology, 2017)
Artikkeliväitöskirja
Artikkeliväitöskirja
This thesis presents the design, modeling, and fabrication of high performance narrowlinewidth edge-emitting semiconductor distributed feedback (DFB) and distributed Bragg reflector (DBR) lasers employing surface gratings ...
Scaling Approaches to Quantum Many-Body Problems
(Tampere University of Technology, 2017)
Artikkeliväitöskirja
Artikkeliväitöskirja
In the present thesis, we will focus on a less studied aspect of Thomas-Fermi theory: the highly non-trivial scaling relations following from it. The main objective of this thesis is to introduce this scaling approach, not ...
Measurements of Noise-seeded Dynamics in Nonlinear Fiber Optics
(Tampere University of Technology, 2017)
Artikkeliväitöskirja
Artikkeliväitöskirja
Nonlinear physical systems are ubiquitous in nature - formation of sand dunes, currents occuring in a rapidly flowing river or a simple double rod pedulum are just a few examples from everyday life. Studying and understanding ...
On the Surface Interaction of Aerosol Particles
(Tampere University of Technology, 2017)
Artikkeliväitöskirja
Artikkeliväitöskirja
Aerosol particles interact with surfaces in different environments and applications. The knowledge of fundamental surface interaction phenomena can be used to investigate the structural properties of particles, describe ...
Sub-100 ps Light Sources Based on Q-Switched Microchip Lasers
(Tampere University of Technology, 2017)
Artikkeliväitöskirja
Artikkeliväitöskirja
Laser pulses are instrumental for a wide range of applications in advanced measurement and imaging techniques, such as time-gated Raman spectroscopy or fluorescent lifetime measurements. Key features for these applications ...