Browsing B6 – LU institūti un aģentūras / Institutes and agencies of the UL by Title
Now showing items 129-148 of 1025
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Characterization of Structural Stability of Magnetron Sputtered Tungsten-boron Thin Films at Elevated Temperatures
(Kaunas University of Technology, 2023)In the divertor of the tokamak type fusion reactors tungsten and tungsten-covered plasma facing materials are currently among the selected materials. However, metallic, high-Z plasma facing materials require plasma mitigation. ... -
Chemical-state analyses of Ni, Zn, and W ions in NiWO4–ZnWO4 solid solutions by X-ray photoelectron spectroscopy
(Elsevier, 2022)The chemical states of Ni, Zn, and W in microcrystalline NiWO4–ZnWO4 solid solutions were studied by X-ray photoelectron spectroscopy. The recorded spectra of the Ni 2p, Zn 2p, and W 4f photoelectron lines and Ni L2M23M45, ... -
Chlorine Adsorption on TiO2(110)/Water Interface: Nonadiabatic Molecular Dynamics Simulations for Photocatalytic Water Splitting
(MDPI, 2023)Chloride is one of the most abundant ions in sea water, which is more available than fresh water. Due to lack of H2O adsorbate states near the valence band maximum (VBM) edge, the difficulty of water dissociation incidents ... -
Cilvēks un cilvēksituācija sabiedrībā un kultūrā: zinātniskās konferences rakstu krājums
(LU Filozofijas un socioloģijas institūts, 2023-12-28)Krājumu veido LU Filozofijas un socioloģijas institūta (FSI) pētnieku LU FSI prioritārajā projektā “Kultūras, identitātes, starpkultūru komunikācijas un cilvēksituācijas pētījumi humānisma vērtību, konfliktu un krīžu ... -
Cladding-Pumped Er/Yb-Co-Doped Fiber Amplifier for Multi-Channel Operation
(MDPI, 2022)Cladding-pumped erbium (Er3+)/ytterbium (Yb3+)-co-doped fiber amplifiers are more advantageous at high output powers. However, this amplification technique also has potential in telecom-related applications. These types ... -
Cladding-Pumped Erbium/Ytterbium Co-Doped Fiber Amplifier for C-Band Operation in Optical Networks
(MDPI, 2021)Space-division multiplexing (SDM) attracts attention to cladding-pumped optical amplifiers, but they suffer from a low pump power conversion efficiency. To address this issue, ytterbium (Yb3+) and erbium (Er3+) co-doping ... -
Clinical evaluation of automated capillary refill time estimation in dogs and cats
(SPIE, 2019-02-26)In this study, we clinically evaluated a pulse oximeter-based device for automated capillary refill time (CRT) estimation in dogs and cats. CRT can reveal conditions like shock or anemia in dogs and cats. However, visual ... -
Co-doping with boron and nitrogen impurities in T-carbon
(Elsevier B.V., 2020)Previously, Ren et al. [Chem. Phys. 518, 69–73, 2019] reported the failure of Boron-Nitrogen (B-N) co-doping as inter B-N bond in T-carbon. In present work, a B-N atom pair is introduced in T-carbon as p-n co-dopant to ... -
CO2 and CH2 Adsorption on Copper-Decorated Graphene: Predictions from First Principle Calculations
(MDPI, 2022)Single-layer graphene decorated with monodisperse copper nanoparticles can support the size and mass-dependent catalysis of the selective electrochemical reduction of CO2 to ethylene (C2 H4 ). In this study, various active ... -
Color constancy in dermatoscopy with smartphone
(SPIE, 2017-12-07)The recent spread of cheap dermatoscopes for smartphones can empower patients to acquire images of skin lesions on their own and send them to dermatologists. Since images are acquired by different smartphone cameras under ... -
Colorimetric gas detection by the varying thickness of a thin film of ultrasmall PTSA-coated TiO2 nanoparticles on a Si substrate
(Beilstein-Institut Zur Forderung der Chemischen Wissenschaften, 2017)Colorimetric gas sensing is demonstrated by thin films based on ultrasmall TiO2 nanoparticles (NPs) on Si substrates. The NPs are bound into the film by p-toluenesulfonic acid (PTSA) and the film is made to absorb volatile ... -
Comparative ab initio calculations of reo3, srzro3, bazro3, pbzro3 and cazro3 (001) surfaces
(MDPI AG, 2020)We performed, for first time, ab initio calculations for the ReO2-terminated ReO3 (001) surface and analyzed systematic trends in the ReO3, SrZrO3, BaZrO3, PbZrO3 and CaZrO3 (001) surfaces using first-principles calculations. ... -
Comparative Hybrid Hartree-Fock-DFT Calculations of WO2-Terminated Cubic WO3 as Well as SrTiO3, BaTiO3, PbTiO3 and CaTiO3 (001) Surfaces
(MDPI, 2021)We performed, to the best of our knowledge, the world’s first first-principles calculations for the WO2-terminated cubic WO3 (001) surface and analyzed the systematic trends in the WO3, SrTiO3, BaTiO3, PbTiO3 and CaTiO3 ... -
A comparative study of heterostructured CuO/CuWO4 nanowires and thin films
(Elsevier B.V., 2017)A comparative study of heterostructured CuO/CuWO4 core/shell nanowires and double-layer thin films was performed through X-ray diffraction, confocal micro-Raman spectroscopy and electron (SEM and TEM) microscopies. The ... -
A comparative study of photocatalytically active nanocrystalline tetragonal T zyrcon- type and monoclinic scheelite-type bismuth vanadate
(Elsevier Ltd, 2018)Monoclinic scheelite-type BiVO4 is currently considered as one of the most promising non-titania photocatalysts, wheras tetragonal zircon-type BiVO4 is still poorly understood. Herein, a new and simple synthetic approach ... -
Comparative Study on Micromechanical Properties of ZnO:Ga and ZnO:In Luminiscent Ceramics
(De Gruyter, 2021)Indium (0.038 at.%) and gallium (0.042 at.%) doped ZnO ceramics were prepared by hot pressing. Ceramics were investigated to determine their structural and mechanical characteristics for the prospective use in scintillators. ... -
Comparing various concepts of function prediction. Part 1.
(Latvia State University, 1974)Prediction: f(m+1) is guessed from given f(0), ..., f(m). Program synthesis: a program computing f is guessed from given f(0), ..., f(m). The hypotheses are required to be correct for all sufficiently large m, or with some ... -
Comparing various concepts of function prediction. Part 2.
(Latvia State University, 1975)Prediction: f(m+1) is guessed from given f(0), ..., f(m). Program synthesis: a program computing f is guessed from given f(0), ..., f(m). The hypotheses are required to be correct for all sufficiently large m, or with some ... -
Comparing various types of limiting synthesis and prediction of functions
(Latvia State University, 1974)