Browsing B6 – LU institūti un aģentūras / Institutes and agencies of the UL by Title
Now showing items 21-40 of 1025
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Ab Initio Study on the Vibrational and Electronic Properties of Radiation-Induced Defects in Potassium Bromide
(MDPI, 2024)The vibrational and electronic properties of several basic radiation defects in potassium bromide are computed at the quantum mechanical level using a periodic supercell approach based on hybrid functionals, an all-electron ... -
Ab-Initio Calculations of Oxygen Vacancy in Ga2O3 Crystals
(Sciendo, 2021)Gallium oxide β-Ga2O3 is an important wide-band gap semiconductor. In this study, we have calculated the formation energy and transition levels of oxygen vacancies in β-Ga2O3 crystal using the B3LYP hybrid exchange-correlation ... -
About Correctness of Graph-Based Social Network Analysis
(2017-07-24)Social network analysis widely uses graph techniques. Together with correct applications, in some cases, results are obtained from the graphs using paths longer than one, and due to intransitivity of relationships, several ... -
Abrupt elastic-to-plastic transition in pentagonal nanowires under bending
(Beilstein-Institut Zur Forderung der Chemischen Wissenschaften, 2019)In this study, pentagonal Ag and Au nanowires (NWs) were bent in cantilever beam configuration inside a scanning electron microscope. We demonstrated an unusual, abrupt elastic-to-plastic transition, observed as a sudden ... -
Abstracts of the 28th Scientific Conference (February 8-10, 2012, Riga)
(LU Cietvielu fizikas institūts, 2012) -
Accumulation of radiation defects and modification of micromechanical properties under MgO crystal irradiation with swift 132Xe ions
(Elsevier B.V., 2020)Accumulation of F-type defects under irradiation of MgO crystals by 0.23-GeV 132Xe ions with fluence varying by three orders of magnitude has been investigated via the spectra of optical absorption and low-temperature ... -
Acoustic and aditory characteristics of the Latvian monophthong system
(Helmut Buske Verlag, 2012) -
Adhesion and mechanical properties of PDMS-based materials probed with AFM: A review
(Institute of Problems of Mechanical Engineering, 2018)Polydimethylsiloxane (PDMS) is the most widely used silicon-based organic polymer, and is particularly known for its unusual rheological properties. PDMS has found extensive usage in various fields ranging from microfluidics ... -
Advanced approach to the local structure reconstruction and theory validation on the example of the W L3-edge extended X-ray absorption fine structure of tungsten
(IOP Publishing, 2018)Atomistic simulations of the experimental W L3-edge extended x-ray absorption fine structure (EXAFS) of bcc tungsten at T = 300 K were performed using classical molecular dynamics (MD) and reverse Monte Carlo (RMC) methods. ... -
Advanced Composites and Applications: Book of abstracts
(Institute for Mechanics of Materials University of Latvia, 2023-02-16)The section ‘Advanced Composites and Applications’ was organized by the Institute for Mechanics of Materials of the University of Latvia (LU MMI) on 16.02.2023 as a part of the annual 81th scientific conference of the ... -
Advanced Composites and Applications: Book of Abstracts : February 13th, 2024
(University of Latvia, 2024-02-14)Traditionally, the session ‘Advanced Composites and Applications’ was organized by the Institute for Mechanics of Materials of the University of Latvia (LU MMI) on 13.02.2024 as a part of the annual 82nd scientific conference ... -
Afterglow, TL and OSL properties of Mn2+-doped ZnGa2O4 phosphor
(Nature Publishing Group, 2019)Zinc gallate (ZnGa2O4) spinel ceramics doped with Mn2+ ions was prepared by a solid-state reaction at 1200 °C in air. Manganese concentration was equal to 0.05 mol.% of MnO with respect to ZnO. Ceramics produced in this ... -
Akadēmiķa Jāņa Endzelīna 148. dzimšanas dienas atceres starptautiskā zinātniskā konference "Baltijas onīmi: no sendienām līdz mūsdienām". Tēzes
(LU Latviešu valodas institūts, 2021-02-22)Tēžu krājumā apvienotas LU Latviešu valodas institūta rīkotās akadēmiķa Jāņa Endzelīna (1873–1961) 148. dzimšanas dienas atcerei veltītās starptautiskās zinātniskās konferences tēzes, kuras iesnieguši 20 konferences ... -
Akadēmiķa Jāņa Endzelīna 149. dzimšanas dienas atceres starptautiskā zinātniskā konference "Valodas reģionālie varianti": tēzes, 2022. gada 22.–23. februāris
(LU Latviešu valodas institūts, 2022-02)Tēžu krājumā apvienotas LU Latviešu valodas institūta rīkotās akadēmiķa Jāņa Endzelīna (1873–1961) 149. dzimšanas dienas atcerei veltītās starptautiskās zinātniskās konferences tēzes, kuras iesnieguši 36 konferences ... -
Akadēmiķa Jāņa Endzelīna 150. dzimšanas dienas atcerei veltīta starptautiska zinātniska konference "Endzelīns. Valoda. Laiks": Tēzes
(LU Latviešu valodas institūts, 2023-02-22)Tēžu krājumā apvienotas LU Latviešu valodas institūta rīkotās akadēmiķa Jāņa Endzelīna (1873–1961) 150. dzimšanas dienas atcerei veltītās starptautiskas zinātniskas konferences tēzes, kuras iesnieguši 43 konferences ... -
Al-driven peculiarities of local coordination and magnetic properties in single-phase Al x-CrFeCoNi high-entropy alloys
(Tsinghua University Press, 2021)Modern design of superior multi-functional alloys composed of several principal components requires in-depth studies of their local structure for developing desired macroscopic properties. Herein, peculiarities of atomic ... -
All-organic electro-optic waveguide modulator comprising SU-8 and nonlinear optical polymer
(OSA - The Optical Society, 2017)In this paper we describe the principles of operation as well as the fabrication and testing steps of an all-organic waveguide modulator. The modulator comprises an SU-8 core and an electro-optic host-guest polymer cladding. ...