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Properties of exchange interactions in magnetic semiconductors
(Lappeenranta-Lahti University of Technology LUT, 2020-12-02)
This dissertation is devoted to the investigation of magnetic properties of nanostructures with magnetic impurities. The properties of electron spin relaxation in magnetically doped quantum well was investigated. It has ...
Simulation and characterization of a front-end ASIC for gaseous muon detectors
(Lappeenranta-Lahti University of Technology LUT, 2021-06-09)
The Large hadron collider at CERN will get a luminosity upgrade in 2027. To cope with the increased particle rates, the compact muon solenoid (CMS) experiment will be upgraded with new gaseous muon detectors known as GEMs. ...
Statistical parameter identification of reaction-diffusion systems by Turing patterns
(Lappeenranta-Lahti University of Technology LUT, 2020-12-14)
Mathematical models allow a connection to be made between a pattern observed on a macroscopic scale and a hypothetical underlying mechanism. Different mechanisms, however, can result in similar patterns. In developmental ...
Magnetotransport properties of nanocomposites close to the percolation threshold
(Lappeenranta-Lahti University of Technology LUT, 2022-05-02)
Magnetic semiconductors and granular metal-insulator systems are the key materials for broadly developing spintronics and for many other fields of solid-state physics. The idea of this work was to investigate magnetotransport ...
Quantification of synchronization
(Lappeenranta-Lahti University of Technology LUT, 2023-11-24)
Synchronization is a universal behavior that is crucial in a wide array of biological, physical, and technical systems. Some examples are flashing fireflies, cardiac and neural processes, non-linear electronic circuits, ...
Atmospheric boundary-layer characteristics and their significance in wind energy and urban air quality assessment
(Lappeenranta-Lahti University of Technology LUT, 2023-11-03)
The study of the Atmospheric Boundary-Layer (ABL) flow is growing rapidly, owing to its crucial role in promoting environmental sustainability and facilitating renewable energy development. The significance of ABL modeling ...
Numerical simulations of defect modeling in semiconductor radiation detectors
(Lappeenranta-Lahti University of Technology LUT, 2022-11-18)
Semiconductor radiation detectors are the core of high energy physics experiments. Silicon (Si)-based segmented particle sensors detect and track all the charged particles that are produced during the collisions in different ...
NMR studies of functionalized peptide dendrimers
(Lappeenranta-Lahti University of Technology LUT, 2022-10-14)
This work is devoted to studying the peptide dendrimers functionalized by double insertions of different amino acid residues by NMR methods. The structures of the dendrimers were confirmed by one- and two-dimensional 1H ...
Heuristic similarity- and distance-based supervised feature selection methods
(Lappeenranta-Lahti University of Technology LUT, 2019-12-16)
In the field of machine learning, the available data often contain many features to describe phenomena. This can pose a problem since only those features that are relevant to characterize the target concept are needed, ...
Twin boundary dynamics in magnetic shape memory alloy Ni-Mn-Ga five-layered modulated martensite
(Lappeenranta University of Technology, 2018-12-10)
Ni-Mn-Ga magnetic shape memory (MSM) alloys are considered to be highly promising materials for actuation, damping, sensing and energy harvesting applications, due to the unique combination of a large transformation strain ...