Repozitář publikační činnosti UK: Poslední příspěvky
Zobrazují se záznamy 161-180 z 2195
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Náčrt historie novodobé vzájemné a mezinárodní spolupráce českých archivů vysokých škol a vědeckých institucí
An Outline of Recent History of Mutual and International Cooperation Between Czech University Archives and Scientific Institutions
původní článek
open access
vydavatelská verze
2025
,Acta Universitatis Carolinae. Historia Universitatis Carolinae Pragensis
,65
(1)
Studie se zabývá novodobými, tj. po roce 1989, možnostmi spolupráce mezi českými archivy vysokých škol a vědeckých institucí, která v roce 2020 získala nový organizační rámec v podobě Odborné skupiny vysokoškolských a ...
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Testing axial symmetry by means of directional regression quantiles
původní článek
open access
vydavatelská verze
2021
,INST MATHEMATICAL STATISTICS-IMS
,Electronic Journal of Statistics
,15
(1)
The article describes how directional quantiles can be useful for testing the null hypothesis that a multivariate distribution is symmetric around a line in a given direction. It also generalizes the proposed tests to ...
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Defect Structures of Magnetic Nanoparticles in Smectic A Liquid Crystals
původní článek
open access
vydavatelská verze
2021
,MDPI
,Molecules
,26
(18)
Topological defects in anisotropic fluids like liquid crystals serve as a playground for the research of various effects. In this study, we concentrated on a hybrid system of chiral rod-like molecules doped by magnetic ...
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Measurement of the Z boson differential production cross section using its invisible decay mode (Z -> nu(nu)over-bar) in proton-proton collisions at root s=13 TeV
původní článek
open access
vydavatelská verze
2021
,SPRINGER
,Journal of High Energy Physics [online]
,2021
(5)
Measurements of the total and differential fiducial cross sections for the Z boson decaying into two neutrinos are presented at the LHC in proton-proton collisions at a center-of-mass energy of 13TeV. The data were collected ...
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Measurement of the top quark mass using events with a single reconstructed top quark in pp collisions at root s=13 TeV
původní článek
open access
vydavatelská verze
2021
,SPRINGER
,Journal of High Energy Physics [online]
,2021
(12)
A measurement of the top quark mass is performed using a data sample enriched with single top quark events produced in the t channel. The study is based on protonproton collision data, corresponding to an integrated ...
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A new approach to near-surface positron annihilation analysis of ion irradiated ferritic alloys
původní článek
open access
vydavatelská verze
2021
,ROYAL SOC CHEMISTRY
,Nanoscale Advances [online]
,3
(23)
The present work provides an innovative approach to the near-surface slow-positron-beam (SPB) study of structural materials exposed to ion-beam irradiation. This approach enables the use of variable-energy positron ...
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Study of Rechargeable Batteries Using Advanced Spectroscopic and Computational Techniques
původní článek
open access
vydavatelská verze
2021
,MDPI
,Condensed Matter [online]
,6
(3)
Improving the efficiency and longevity of energy storage systems based on Li- and Na-ion rechargeable batteries presents a major challenge. The main problems are essentially capacity loss and limited cyclability. These ...
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Vacancy-Hydrogen Interaction in Niobium during Low-Temperature Baking
původní článek
open access
vydavatelská verze
2020
,NATURE PUBLISHING GROUP
,Scientific Reports
,10
(1)
A recently discovered modified low-temperature baking leads to reduced surface losses and an increase of the accelerating gradient of superconducting TESLA shape cavities. We will show that the dynamics of vacancy-hydrogen ...
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Co-evolution of vacancies and solute clusters during artificial ageing of Al-Mg-Si alloys
původní článek
open access
vydavatelská verze
2020
,AMER PHYSICAL SOC
,Physical Review Materials
,4
(6)
Al-Mg-Si alloys with total solute contents ranging from 0.8 to 1.4 wt % were solutionized, quenched, and then artificially aged (AA) at 180 degrees C, after which positron annihilation lifetime spectroscopy was applied to ...
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Search for Long-Lived Particles Decaying in the CMS End Cap Muon Detectors in Proton-Proton Collisions at root s=13 TeV
původní článek
open access
vydavatelská verze
2021
,AMER PHYSICAL SOC
,Physical Review Letters
,127
(26)
A search for long-lived particles (LLPs) produced in decays of standard model (SM) Higgs bosons is presented. The data sample consists of 137 fb(-1) of proton-proton collisions at root s = 13 TeV, recorded at the LHC in ...
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Investigation of Optical Properties and Defects Structure of Rare Earth (Sm, Gd, Ho) Doped Zinc Oxide Thin Films Prepared by Pulsed Laser Deposition
původní článek
open access
vydavatelská verze
2020
,POLISH ACAD SCIENCES INST PHYSICS
,Acta Physica Polonica A
,137
(2)
Rare earths (RE = Sm, Gd, Ho) doped ZnO thin films were grown by pulsed laser deposition in oxygen ambient at pressure of 10 Pa on fused silica and Si(100) substrates at room temperature. A good optical quality of the films ...
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Microstructure and Nanoscopic Porosity in Black Pd Films
původní článek
open access
vydavatelská verze
2020
,POLISH ACAD SCIENCES INST PHYSICS
,Acta Physica Polonica A
,137
(2)
In the present work the microstructure of a black Pd film prepared by thermal evaporation and a glossy Pd film deposited by magnetron sputtering was compared. While the glossy Pd film exhibits typical polycrystalline ...
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STUDY OF NANOSCOPIC POROSITY IN BLACK METALS BY POSITRON ANNIHILATION SPECTROSCOPY
původní článek
open access
vydavatelská verze
2020
,JAGIELLONIAN UNIV PRESS
,Acta Physica Polonica, Series B.
,51
(1)
Black and smooth Al films were characterized by the variable energy positron annihilation spectroscopy (VEPAS). It was found that in smooth films positronium (Ps) is formed on the surface only while in black metal films, ...
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Quenched-in Vacancies and Hardening of Fe-Al Intermetallics
původní článek
open access
vydavatelská verze
2020
,POLISH ACAD SCIENCES INST PHYSICS
,Acta Physica Polonica A
,137
(2)
The role of vacancies in hardening of Fe-Al intermetallic alloys were studied in the present work for a wide range of Al concentrations from 20 to 50 at%. The alloys quenched from 1000 degrees C as well as those annealed ...
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PLRF Code for Decomposition of Positron Lifetime Spectra
původní článek
open access
vydavatelská verze
2020
,POLISH ACAD SCIENCES INST PHYSICS
,Acta Physica Polonica A
,137
(2)
A new code PLRF (version 19) was developed for decomposition of positron lifetime spectra. The PLRF code is based on the least squares fitting of positron lifetime spectra and utilizes a minimization routine MINUIT from ...
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Defects in Thin Layers of High Entropy Alloy HfNbTaTiZr
původní článek
open access
vydavatelská verze
2020
,POLISH ACAD SCIENCES INST PHYSICS
,Acta Physica Polonica A
,137
(2)
High entropy alloys represent a new type of materials with unique combination of physical properties originating due to occurrence of single phase solid solution of numerous elements. Preparation of high entropy alloys ...
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Why EDI matters: equ(al)ity, diversity and inclusion in European universities
monografie
open access
vydavatelská verze
2025
,Padova
,Padova University Press
This timely collective volume provides a critical yet constructive analysis of EDI in prestigious European universities, situating these challenges within a broader global context. It examines the political pressures, ...
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Metodika měření vnímání zahraničního informačnímu vlivu, protiopatření proti němu a komunikace jeho existence v dospělé populaci ČR
Methodology for measuring the perception of foreign information influence, the countermeasures against it, and the communication of its existence among the adult population of the Czech Republic
schválená metodika
open access
vydavatelská verze
2025
Metodika upravuje vzájemně porovnatelné a v čase opakovatelné měření postojů veřejnosti k zahraničnímu vlivovému působení, protiopatřením proti němu a komunikaci jeho existence.
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Discovering the Čirá–Kopanina Fault: Bridging the Gap between Surface Evidence and Seismic Activity
původní článek
open access
vydavatelská verze
2025
,Geological Society of America
,Lithosphere
,2024
(July)
The West Bohemia region in Czechia is well known for its frequent seismic activity, particularly earthquake swarms with magnitudes up to 3-4. Seismicity has been documented since the sixteenth century, with pronounced ...
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Spatiotemporal Variability of Dendroecological Indicators in Pedunculate Oak (Quercus robur L.) Tree-Rings Across Europe in Relation to Species Distribution Models
původní článek
open access
vydavatelská verze
2025
,Blackwell Science
,Global Change Biology
,31
(11)
Climate is a primary, but non-stationary, driver of tree growth. Climate change is altering the sensitivity of forest growth to water availability and temperature over time. It is considered that pedunculate oak (Quercus ...
