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Numerics of Spacecraft Dynamics
(Turun yliopisto, 2011-02-26)
Whenever a spacecraft is launched it is essential that the algorithms in the on-board software systems and at ground control are efficient and reliable over extended periods of time. Geometric numerical integrators, and ...
Calibration and simulations of SIXS-P's response to energetic particles
(Turun yliopisto, 2016-10-04)
The Solar Intensity X-ray and particle Spectrometer (SIXS) on board BepiColombo's Mercury Planetary Orbiter (MPO) will study solar energetic particles moving towards Mercury and solar X-rays on the dayside of Mercury. The ...
GaN- ja AlGaN-puolijohteiden pintaominaisuuksista ja niiden muokkauksesta
(Turun yliopisto, 2016-05-24)
Yhdistepuolijohde galliumnitridi (GaN) on energiatehokkaiden valkoisten ledien päämateriaali. GaN on kestävä materiaali; sillä on muun muassa alhainen säteilyreagointi ja suuri jännitekestävyys, minkä vuoksi GaN soveltuu ...
Menetelmiä jauheen resistiivisyyden kosteusriippuvuuden tutkimiseksi
(Turun yliopisto, 2015-02-12)
Studies of Eu- and Yb-induced Reconstructions on the Si(100) Surface
(Turun yliopistoAnnales Universitatis Turkuensis A I 387, 2008-12-19)
This thesis presents experimental studies of rare earth (RE) metal induced structures on Si(100) surfaces. Two divalent RE metal adsorbates, Eu and Yb, are investigated on nominally flat Si(100) and on vicinal, stepped ...
Michelson interferometer with porch swing bearing for portable FTIR spectrometer
(Turun yliopistoAnnales Universitatis Turkuensis A I 487, 2014-05-10)
The interferometer for low resolution portable Fourier Transform middle infrared spectrometer was developed and studied experimentally. The final aim was a concept for a commercial prototype. Because of the portability, ...
On Methods for Constraining F (R) Theories of Gravity
(Turun yliopistoAnnales Universitatis Turkuensis A I 556, 2017-04-21)
Einstein's theory of general relativity is without doubt one of greatest achievements in the history of Mankind. Even so, there are some ways, in which it leaves room for improvement. The last one hundred ...
On the Properties and Cosmology of Q-balls
(Turun yliopistoAnnales Universitatis Turkuensis AI 272, 2001)
The properties and cosmological importance of a class of non-topological solitons, Q-balls, are studied. Aspects of Q-ball solutions and Q-ball cosmology discussed in the literature are reviewed. Q-balls are particularly ...
Fysiikka ja geometria
(Turun yliopisto, 2014-01-08)
X-ray bursts as a tool to constrain the equation of state of the ultra-dense matter inside neutron stars
(Turun yliopisto, 2017-12-15)
Neutron stars are one of the most dense objects in the Universe. However, the exact description of the equation of state (EoS) of the cold ultra-dense matter inside them is still a mystery. In this thesis, we measure the ...