Browsing B6 – LU institūti un aģentūras / Institutes and agencies of the UL by Title
Now showing items 229-248 of 1025
-
Effect of Printing Direction and Post-Printing Conditions on Bending Properties of ULTEM 9085
(MDPI, 2023)The purpose of this study was to reveal the effect of printing direction and post-printing conditions on static and fatigue bending characteristics of Ultem 9085 at two stress levels. Right after the printing, the Ultem ... -
The Effect of Stimulus Contrast and Spatial Position on Saccadic Eye Movement Parameters
(MDPI, 2023-12)Background: Saccadic eye movements are rapid eye movements aimed to position the object image on the central retina, ensuring high-resolution data sampling across the visual field. Although saccadic eye movements are studied ... -
The Effect of the Range of a Modulating Phase Mask on the Retrieval of a Complex Object from Intensity Measurements
(Walter de Gruyter, 2021)In many fields of science, it is often impossible to preserve the information about the phase of the electromagnetic field, and only the information about the magnitude is available. This is known as the phase problem. ... -
Effect of Yb3+ doping level on the structure and spectroscopic properties of ZnO optical ceramics
(Institute of Physics Publishing, 2021)Zinc oxide optical ceramics with hexagonal structure doped with 0.6 –5.0 wt% Yb were fabricated by uniaxial hot pressing of commercial oxide powders at 1180 °C in vacuum. The ceramics were characterized by X-ray diffraction, ... -
Effects of CuO doping on structure, microstructure and dielectric properties of BaTiO3–PbTiO3 solid solution
(Taylor and Francis Ltd., 2019)Ba0.7Pb0.3TiO3 and Ba0.7Pb0.3TiO3+yCuO (y = 0.1 wt%, 0.5 wt%, 1 wt% and 3 wt%) samples were prepared by a solid state reaction method. High purity raw materials were used. Structural properties of the sintered pellets were ... -
Effects of Electron Correlation inside Disordered Crystals
(MDPI, 2022)We propose a novel approach for characterising the electron spectrum of disordered crystals constructed from a Hamiltonian of electrons as well as phonons and a diagram approach for Green’s function. The system’s electronic ... -
Effects of Mn doping on dielectric properties of ferroelectric relaxor PLZT ceramics
(Elsevier B.V., 2017)A series of PLZT (8/65/35) ceramics with different Mn2O3 concentration (0.01, 0.1, 0.3, 1.0, and 3.0% by weight) have been synthesized to figure out its influence on their dielectric properties. The complex dielectric ... -
Effects of Pulsed Electric Field on the Physicochemical and Structural Properties of Micellar Casein
(MDPI, 2023)Pulsed electric field (PEF) as a green processing technology is drawing greater attention due to its eco-friendliness and potential to promote sustainable development goals. In this study, the effects of different electric ... -
Effects of steric encumbrance of iridium(iii) complex core on performance of solution-processed organic light emitting diodes
(Royal Society of Chemistry, 2020)Iridium(iii) complexes are the most frequently applied commercialized green and red emitters for organic light emitting diode (OLED) displays. Throughout years a significant research effort has been devoted to modify these ... -
Efficient ultrafast laser writing with elliptical polarization
(Springer Nature, 2023)Photosensitivity in nature is commonly associated with stronger light absorption. It is also believed that artificial optical anisotropy to be the strongest when created by light with linear polarization. Contrary to ... -
Eko-fenomenoloģija mūsdienās: LU 79. starptautiskās zinātniskās konferences materiāli
(LU Filozofijas un socioloģijas institūts, 2021)Collection of articles, reports and abstracts “Eco-phenomenology today” presents results of the first stage of the Latvian Science Council project Izp-2020/2-0085. It is devoted to research of the world's first published ... -
Electric current induced modification of germanium nanowire NEM switch contact
(IOP Publishing, 2015) -
Electric relaxation and Mn3+/Mn4+ charge transfer in Fe-doped Bi12MnO20–BiMn2O5 structural self-composite
(Springer New York LLC, 2017)Fe-doped Bi12MnO20–BiMn2O5 ceramics was sintered at 1130 K for 6 h in ambient air. Two centro-symmetric phases formed thermodynamically stable self-composite material that was deduced from X-ray pattern analysis. The lattice ... -
Electro-catalytic and photo-catalytic reformation of CO2–reactions and efficiencies processes (Review)
(Institute of Physics Publishing, 2019)Energy harvesting with lowest environmental impact is one of key elements for cleaner future. Photocatalytic as well as electrocatalytic CO2 reformation processes are considered as prominent methods. Thus, extensive research ... -
Electrocaloric Effect in (1−x)(0.8Na0.5Bi0.5TiO3-0.2BaTiO3)− xCaTiO3 Solid Solutions at High Electric Fields
(MDPI, 2022)Recently, promising results were obtained in studies of the electrocaloric effect in thin films. Therefore, research into this effect at high applied electric field values in bulk ferroelectrics is an important task for ... -
Electrochemical exfoliation-streamline method for synthesis of nitrogen doped graphene
(Lithuanian Academy of Sciences Publishers, 2021)Graphene was discovered in the early 21st century, but has already proven itself in many applications – energy, medicine, electronics, food and sports, and more. Functionalization of nanostructured carbon materials with ... -
Electrochemical Growth and Structural Study of the AlxGa1−xAs Nanowhisker Layer on the GaAs Surface
(MDPI, 2023)This work presents a novel, cost-effective method for synthesizing AlxGa1−xAs nanowhiskers on a GaAs surface by electrochemical deposition. The process begins with structuring the GaAs surface by electrochemical etching, ... -
Electromechanical properties in CaTiO3modified Na0.5Bi0.5TiO3-BaTiO3solid solutions above morphotropic phase boundary
(American Institute of Physics Inc., 2022)The structural, electromechanical, and dielectric properties of (1-x)(0.8Na0.5Bi0.5TiO3-0.2BaTiO3)-xCaTiO3 [(1-x) (0.8NBT-0.2BT)-xCT] ceramics are studied as candidates for room temperature actuators with high field-induced ... -
Electromechanical Properties of Ba(1–x)SrxTiO3 Perovskite Solid Solutions from First-Principles Calculations
(ACS Publications, 2017)An enhancement of the piezoelectric properties of lead-free materials, which allow conversion of mechanical energy into electricity, is a task of great importance and interest. Results of first-principles calculations of ... -
Electron Beam-Assisted Synthesis of YAG:Ce Ceramics
(MDPI, 2023)In this work, we present the results of the structure and luminescence properties of YAG:Ce (Y3Al5O12 doped with Ce3+ ions) ceramic samples. Their synthesis was carried out by sintering samples from the initial oxide powders ...