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Aineistot 1-10 / 117
Particle observations in near-earth space: Design and verification of particle instruments for CubeSat experiments
(Turun yliopisto, 2021-12-15)
This doctoral thesis presents the design, simulation, and calibration of two instruments developed to study energetic charged particles in low-Earth orbit. The near-Earth energetic charged particle populations include ...
Measurement simulability and incompatibility in quantum theory and other operational theories
(Turun yliopisto, 2021-06-17)
Quantum theory is a particularly important instance of an operational theory.By looking at quantum theory from the perspective of more abstract operational framework one is able to study its properties in a wider context. ...
Transport in correlated open quantum systems
(Turun yliopisto, 2021-01-30)
The problem of the dynamics in open and correlated quantum systems has gained attention in recent years due to the impressive experimental advances that were made in quantum transport in molecular systems. The importance ...
Empirical modelling of solar energetic particles
(Turun yliopisto, 2021-06-28)
Solar energetic particles (SEPs) are an important component of space weather. They pose a serious radiation hazard to electronic equipment and biological organisms in space. They are produced in explosive events such as ...
Tiivistemateriaalien ikääntyminen sähköisten ajoneuvojen akkujärjestelmissä
(2021-01-20)
Sähköaujoneuvon akkupaketin suunnittelussa on otettava huomioon kaikki autoympäristössä vaikuttavat olosuhteet, sillä vahingoittuessaan litiumioniakku on epävakaa ja voi pahimmillaan räjähtää. Tärkeimpiin huomioonotettaviin ...
Properties of highly magnetized neutron stars from X-ray timing analysis on different time scales
(Turun yliopisto, 2022-10-26)
Massive stars end their lives either by collapsing directly into a black hole or by exploding as a supernova, leaving behind their collapsed core, a black hole or a neutron star (NS). NSs are a showcase of extremities: ...
GaN-puolijohteen kontaktiresistanssi Ni/p-GaN rajapinnassa
(2022-09-12)
Puolijohteiden käyttö elektroniikassa on lisääntynyt jatkuvasti. Erityisesti 3. ja 5.
pääryhmien alkuaineista valmistettujen yhdistepuolijohteiden käyttö valontuotannossa on kasvanut merkittävästi ledien ansiosta. ...
Kvantti-informaation naamiointi
(2022-08-15)
Kvanttimekaniikan matemaattinen rakenne johtaa tuloksiin, joiden mukaan on olemassa sellaisia operaatioita, joita ei yleisesti ole mahdollista toteuttaa. Näitä tuloksia kutsutaan kieltolauseiksi. Tunnettuja esimerkkejä ...
Observational studies of accreting X-ray pulsars in a broad energy range
(Turun yliopisto, 2022-11-04)
Among all interesting astrophysical objects in the universe, only a few are capable of improving our understanding of physics under extreme conditions. Accreting neutronstars are one of these objects. These compact objects ...
Simulation of thermal runaway in Li-ion batteries
(2022-04-25)
Lithium-ion batteries have gained a vast and ever-growing popularity as the choice for a high energy capacity energy storage solution. With the ever-growing use of Li-ion batteries, also comes the heightened risk of accidents ...