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Now showing items 3531-3540 of 3558
Multimode time-dependent gyrotron equations for different time scales
(American Institute of Physics Inc., 2017)
Development of gyrotrons requires careful understanding of different regimes of gyrotron oscillations. For a long time, the gyrotron theory was developed assuming that the transit time of electrons through the interaction ...
Upconversion luminescence of a transparent glass ceramics with hexagonal Na(Gd,Lu)F4 nanocrystals
(Elsevier B.V., 2017)
Novel Er3+ doped transparent glass ceramics containing hexagonal Na(Gd,Lu)F4 nanocrystals were prepared from oxyfluoride glasses. The distribution of rare earth ions in the crystalline and glassy phase has been analyzed ...
Phase transitions and upconversion luminescence in oxyfluoride glass ceramics containing Ba4Gd3F17 nanocrystals
(Elsevier B.V., 2017)
Novel transparent Er3+ doped oxyfluoride glass-ceramics containing Ba4Gd3F17 nanocrystals were prepared by melt quenching followed by heat treatment of as-prepared glasses. The phase composition and microstructure were ...
Electron paramagnetic resonance and photoluminescence investigation of europium local structure in oxyfluoride glass ceramics containing SrF2 nanocrystals
(Elsevier B.V., 2017)
Different compositions of europium doped aluminosilicate oxyfluoride glass ceramics prepared in air atmosphere have been studied by electron paramagnetic resonance (EPR) and optical spectroscopy methods. X-ray diffraction ...
Starpdisciplināras angļu un teātra stundas 7. klases skolēnu angļu valodas izrunas uzlabošanai
(Latvijas Universitāte, 2017)
Diplomdarbā autors pētīja iespēju izmantot starpdisciplināras stundas, lai uzlabotu 7. klases skolēnu izrunu, mācot starpdisciplināras angļu / drāmas stundas. Darbā autors pētīja starpdisciplināru nodarbību integrāciju, ...
Diferenciācija angļu valodas mācību stundās 4.klases skolēnu lasītprasmes uzlabošanai
(Latvijas Universitāte, 2017)
Šī pētījuma mērķis bija izmeklēt diferenciācijas ietekmi uz skolēnu lasītprasmes attīstību. Šis pētījums norisinājās vidusskolā, Rīgā. Pētījuma grupa bija 28 skolēni no divām 4. klašu grupām un viena angļu valodas skolotāja ...
Internal audit in small local governments in Latvia
(Kaunas University of Technology, 2017-10-06)
Research background The role of internal audit is to provide independent assurance that an organisation’s risk management, governance, and internal control processes are operating effectively.
Purpose of the article The ...
Internal Audit and External Audit Cooperation in EU Countries
(Vilnius University, 2017-05-17)
There is no common requirement guiding the approaches taken by the European Union (EU) public sector internal audit cooperation with external audit. Relations between these audit systems have developed over time. There are ...
Introduction to Mathematical Logic (Edition 2017)
(2017-05-24)
This is Edition 2017. Read the NEW Edition 2021 at https://dspace.lu.lv/dspace/handle/7/53914. Hyper-textbook for students in mathematical logic. First order languages. Axioms of constructive and classical logic. Proving ...
Ukrainas krīze
(Lasītava, 2017)
Dr. hist. Aldis Miņins, monogrāfijas „Cīņa par varu Krievijas postimpērijas Rietumu perifērijā 1917.–1920. gadā” autors par grāmatu: Latvijas Universitātes Vēstures un filozofijas fakultātes absolvents Alvis Marcinkēvičs ...