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Aineistot 21-40 / 114

    • Emission, kinetic and magnetic phenomena in rare-earth and transition metal doped ZnSe single crystals 

      Radevici, Ivan
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 515 (Turun yliopisto, 22.05.2015)
      In this work emission, optical, electrical and magnetic properties of the d- and f- elements doped zinc selenide crystals were investigated within a wide temperature range. Doping was performed in various technological ...

    • Empirical modelling of solar energetic particles 

      Raukunen, Osku
      Turun yliopiston julkaisuja - Annales Universitatis Turkuensis, Ser A I: Astronomica, Chemica, Physica, Mathematica : 648 (Turun yliopisto, 28.06.2021)
      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 ...

    • Enhancing the Usability of Drug Materials by Electrostatic Atomisation 

      Nyström, Maija
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 501 (Turun yliopisto, 12.11.2014)
      Electrospraying or electrostatic atomisation is a process of liquid disruption by electrostatic forces. When liquid is brought into an electric field, charge is induced to its surface. Once the repulsive electrostatic force ...

    • Environments of Active Galaxies 

      Lietzen, Heidi
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 447 (Turun yliopisto, 10.11.2012)
      This dissertation presents studies on the environments of active galaxies. Paper I is a case study of a cluster of galaxies containing BL Lac object RGB 1745+398. We measured the velocity dispersion, mass, and richness ...

    • Evolution and Stellar Content of AGN Host Galaxies 

      Hyvönen, Tomi
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 394 (Turun yliopisto, 09.05.2009)
      In this dissertation, Active Galactic Nuclei (AGN) and their host galaxies are discussed. Together with transitional events, such as supernovae and gamma-ray bursts, AGN are the most energetic phenomena in the Universe. ...

    • Exploring connections between open quantum systems, relativity and complex quantum networks 

      Sokolov, Boris
      Turun yliopiston julkaisuja - Annales Universitatis Turkuensis, Ser A I: Astronomica, Chemica, Physica, Mathematica : 632 (Turun yliopisto, 05.12.2020)
      This thesis is a collection of works focusing on interrelations between the fields of special relativity, open quantum systems and complex networks. As each of the aforementioned fields encompasses a huge variety of topics, ...

    • Extreme Observables and Optimal Measurements in Quantum Theory 

      Haapasalo, Erkka
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 526 (Turun yliopisto, 21.11.2015)
      Optimization of quantum measurement processes has a pivotal role in carrying out better, more accurate or less disrupting, measurements and experiments on a quantum system. Especially, convex optimization, ...

    • Fragmentation Processes in Organic Molecules induced by Synchrotron Radiation 

      Itälä, Eero
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 454 (Turun yliopisto, 14.01.2013)

    • High-precision polarimetric, broad-band spectroscopic and temporal studies of black hole X-ray binaries 

      Kosenkov, Ilia
      Turun yliopiston julkaisuja - Annales Universitatis Turkuensis, Ser A I: Astronomica, Chemica, Physica, Mathematica : 652 (Turun yliopisto, 08.10.2021)
      Black holes are among the most unusual objects in the Universe. Powered through accretion, they are strong sources of radiation in a broad energy range, from radio to hard X-rays. Stellar-mass black holes manifest themselves ...

    • Implementability of observables, channels and instruments in quantum theory of measurements 

      Tukiainen, Mikko
      Turun yliopiston julkaisuja. Sarja AI: Astronomica – Chemica – Physica – Mathematica : 567 (Turun yliopisto, 25.11.2017)
      Measurements play an integral part in any scientific theory. Indeed, the observations revealing causal behaviour and symmetries in our world of experience lie at the heart of determining the truth or the falsity of scientific ...

    • Investigation and suppression of semiconductor–oxide related defect states : from surface science to device tests 

      Mäkelä, Jaakko
      Turun yliopiston julkaisuja. Sarja A I: Astronomica – Chemica – Physica – Mathematica : 598 (Turun yliopisto, 22.02.2019)
      Many present challenges in semiconductor technology are related to utilizing solid structures with atomic scale dimensions and materials with higher charge carrier mobility and/or other readily controllable properties. ...

    • Investigation of properties of solar energetic particles and geomagnetic storms related to coronal mass ejections 

      Dheyaa, Ameri
      Turun yliopiston julkaisuja. Sarja A I: Astronomica – Chemica – Physica – Mathematica : 622 (Turun yliopisto, 19.12.2019)
      Solar energetic particles (SEPs) and geomagnetic storms related to coronal mass ejections (CMEs) are a major research topic in solar-terrestrial and geospace physics. Solar energetic particles and coronal mass ejections ...

    • Leptogenesis as the origin of matter-antimatter asymmetry in extra dimensional and supersymmetric models 

      Kuismanen, Heidi
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 423 (Turun yliopisto, 01.10.2011)
      The Standard Model of particle physics is currently the best description of fundamental particles and their interactions. All particles save the Higgs boson have been observed in particle accelerator experiments over the ...

    • Long quasi-periodic oscillations of sunspots and small-scale magnetic structures 

      Smirnova, Victoria (Turun yliopisto, 30.01.2020)
      This thesis presents the investigations and the interpretation of long quasi-periodic oscillations with periods more than 30 minutes observed in the magnetic field of sunspots, as well as, at millimeter radio emission ...

    • Low bandwidth manganite (Gd, Ca)MnO3 for future memristor devices 

      Beiranvand, Azar
      Turun yliopiston julkaisuja - Annales Universitatis Turkuensis, Ser A I: Astronomica, Chemica, Physica, Mathematica : 669 (Turun yliopisto, 21.05.2022)

    • Magnetic Perovskites Sr2FeMoO6 and La(1-x)Ca(x)MnO3: Synthesis, Fabrication and Characterization of Nanosized Powders and Thin Films 

      Suominen, Tanja
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 403 (Turun yliopisto, 19.12.2009)
      Due to font problem on the tilte field the titlte of the thesis is corrected here. The title of the thesis is: <b>Magnetic Perovskites Sr<sub>2</sub>FeMoO<sub>6</sub> and La<sub>(1-x)</sub>Ca<sub>(x)</sub>MnO<sub>3</sub>: ...

    • Magnetic Properties of CdSb Doped with Ni and ZnO Co-Doped with Fe and Mg 

      Ojala, Ilari
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 459 (Turun yliopisto, 23.03.2013)

    • Magnetic Resonance Experiments with Atomic Hydrogen 

      Ahokas, Janne
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 412 (Turun yliopisto, 30.10.2010)
      In this thesis three experiments with atomic hydrogen (H) at low temperatures T<1 K are presented. Experiments were carried out with two- (2D) and three-dimensional (3D) H gas, and with H atoms trapped in solid H2 matrix. ...

    • Magnetic resonance study of atomic hydrogen stabilized in matrices of hydrogen isotopes below 1K 

      Sheludiakov, Sergei
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 555 (Turun yliopisto, 03.03.2017)
      In this thesis, we report on an experimental study of H, D and T atoms stabilized in solid molecular matrices of hydrogen isotopes at temperatures down to 70 mK. Previous experiments have been carried out at ...

    • Magnetophotoresistance in Pr 1–x CaxMnO3 Thin Films 

      Elovaara, Tomi
      Turun yliopiston julkaisuja. Sarja AI, Chemica - Physica – Mathematica : 542 (Turun yliopisto, 18.06.2016)
      In this work, a colossal magnetoresistive (CMR) Pr1−xCaxMnO3 (PCMO) man- ganite thin films and polycrystalline samples were studied with the main focus on the properties of the insulator to metal Mott phase transition. ...