Repozitář publikační činnosti UK: Poslední příspěvky

Zobrazují se záznamy 61-80 z 2091

    • A new approach to near-surface positron annihilation analysis of ion irradiated ferritic alloys 

      původní článek

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      Krsjak, Vladimir

      ;

      Hruška, Petr

      ;

      Degmova, Jarmila

      ;

      Sojak, Stanislav

      ;

      Noga, Pavol

      ;

      Shen, Tielong

      ;

      Sabelova, Veronika

      ;

      Egger, Werner

      ;

      Slugen, Vladimir

      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 ...

    • Study of Rechargeable Batteries Using Advanced Spectroscopic and Computational Techniques 

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      open access

      vydavatelská verze

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      Barbiellini, Bernardo

      ;

      Kuriplach, Jan

      ;

      Saniz, Rolando

      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 ...

    • Vacancy-Hydrogen Interaction in Niobium during Low-Temperature Baking 

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      Wenskat, Marc

      ;

      Čížek, Jakub

      ;

      Liedke, Maciej Oskar

      ;

      Butterling, Maik

      ;

      Bate, Christopher

      ;

      Hausild, Petr

      ;

      Hirschmann, Eric

      ;

      Wagner, Andreas

      ;

      Weise, Hans

      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 ...

    • Co-evolution of vacancies and solute clusters during artificial ageing of Al-Mg-Si alloys 

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      Madanat, Mazen

      ;

      Liu, Meng

      ;

      Zhang, Xingpu

      ;

      Guo, Qianning

      ;

      Čížek, Jakub

      ;

      Banhart, John

      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 ...

    • Search for Long-Lived Particles Decaying in the CMS End Cap Muon Detectors in Proton-Proton Collisions at root s=13 TeV 

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      Tumasyan, A

      ;

      Adam, W

      ;

      Andrejkovic, J. W

      ;

      Bergauer, T

      ;

      Chatterjee, S

      ;

      Dragicevic, M

      ;

      Del Valle, A. Escalante

      ;

      Fruehwirth, R

      ;

      Jeitler, M

      ;

      Finger, Michael

      ;

      Finger, Miroslav

      ;

      Květoň, Antonín

      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 ...

    • Investigation of Optical Properties and Defects Structure of Rare Earth (Sm, Gd, Ho) Doped Zinc Oxide Thin Films Prepared by Pulsed Laser Deposition 

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      Novotny, M

      ;

      Hruška, Petr

      ;

      Fitl, P

      ;

      Maresova, E

      ;

      Havlova, S

      ;

      Bulir, J

      ;

      Fekete, L

      ;

      Yatskiv, R

      ;

      Vrnata, M

      ;

      Čížek, Jakub

      ;

      Liedke, M. O

      ;

      Lancok, J

      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 ...

    • Microstructure and Nanoscopic Porosity in Black Pd Films 

      původní článek

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      Melikhova, Oksana

      ;

      Čížek, Jakub

      ;

      Hruška, Petr

      ;

      Lukáč, František

      ;

      Novotny, M

      ;

      More-Chevalier, J

      ;

      Fitl, P

      ;

      Liedke, Mo

      ;

      Butterling, M

      ;

      Wagner, A

      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 ...

    • STUDY OF NANOSCOPIC POROSITY IN BLACK METALS BY POSITRON ANNIHILATION SPECTROSCOPY 

      původní článek

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      vydavatelská verze

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      Melikhova, Oksana

      ;

      Čížek, Jakub

      ;

      Hruška, Petr

      ;

      Liedke, M. O

      ;

      Butterling, M

      ;

      Wagner, A

      ;

      Novotny, M

      ;

      More-Chevalier, J

      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, ...

    • Quenched-in Vacancies and Hardening of Fe-Al Intermetallics 

      původní článek

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      Procházka, Ivan

      ;

      Vlasák, Tomáš

      ;

      Čížek, Jakub

      ;

      Lukáč, František

      ;

      Liedke, M. O

      ;

      Anwand, W

      ;

      Jiraskova, Y

      ;

      Janickovic, D

      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 ...

    • PLRF Code for Decomposition of Positron Lifetime Spectra 

      původní článek

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      Čížek, Jakub

      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 ...

    • Defects in Thin Layers of High Entropy Alloy HfNbTaTiZr 

      původní článek

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      Lukáč, František

      ;

      Hruška, Petr

      ;

      Cichon, S

      ;

      Vlasák, Tomáš

      ;

      Čížek, Jakub

      ;

      Kmječ, Tomáš

      ;

      Melikhova, Oksana

      ;

      Butterling, M

      ;

      Liedke, M. O

      ;

      Wagner, A

      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 ...

    • Why EDI matters: equ(al)ity, diversity and inclusion in European universities 

      monografie

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      Oboe, Annalisa

      ;

      Sokolová, Věra

      ;

      Wahlström Henriksson, Helena

      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, ...

    • 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

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      Bahenský, Vojtěch

      ;

      Komasová, Sarah

      2025

      Metodika upravuje vzájemně porovnatelné a v čase opakovatelné měření postojů veřejnosti k zahraničnímu vlivovému působení, protiopatřením proti němu a komunikaci jeho existence.

    • Discovering the Čirá–Kopanina Fault: Bridging the Gap between Surface Evidence and Seismic Activity 

      původní článek

      open access

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      Štěpančíková, Petra

      ;

      Stemberk, Jakub

      ;

      Tábořík, Petr

      ;

      Fischer, Tomáš

      ;

      Findžová, Leona

      ;

      Valenta, Jan

      2025

      ,

      Geological Society of America

      ,

      Lithosphere

      ,

      2024

      (July 2025)

      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 ...

    • Spatiotemporal Variability of Dendroecological Indicators in Pedunculate Oak (Quercus robur L.) Tree-Rings Across Europe in Relation to Species Distribution Models 

      původní článek

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      Popa, Andrei

      ;

      Jevšenak, Jernej

      ;

      Dyderski, Marcin

      ;

      Puchałka, Radosław

      ;

      Buras, Allan

      ;

      Popa, Ionel

      ;

      Wilmking, Martin

      ;

      Kalisty, Aleksandra

      ;

      Roibu, Catalin-constantin

      ;

      Jakubowski, Marcin

      ;

      Thurm, Eric

      ;

      Šenfeldr, Martin

      ;

      Smiljanić, Marko

      ;

      Van Der Maaten, Ernst

      ;

      Esper, Jan

      ;

      Martinez Del Castillo, Edurne

      ;

      Treml, Václav

      ;

      Tumajer, Jan

      ;

      Zlatanov, Tzvetan

      ;

      Matisons, Roberts

      ;

      Florenta, Gheorghe

      ;

      Florenta, Veronica

      ;

      Netsvetov, Maksym

      ;

      Grati, Vladislav

      ;

      Burger, Andreas

      ;

      Janecka, Karolina

      ;

      Kostić, Saša

      ;

      Pilch, Kamil

      ;

      Jansone, Diana

      ;

      Liepina, Agnese

      ;

      Prokopuk, Yulia

      ;

      Sylenko, Oleksandr

      ;

      Árvai, Mátyás

      ;

      Bräuning, Achim

      ;

      Marques, Cristina

      ;

      Häusser, Martin

      ;

      Horváth, Emil

      ;

      Jeleń, Jakub

      ;

      Kaczka, Ryszard

      ;

      Kern, Zoltán

      ;

      Kolář, Tomáš

      ;

      Koprowski, Marcin

      ;

      Metslaid, Sandra

      ;

      Morgós, András

      ;

      Khodosovtsev, Oleksandr

      ;

      Potapov, Aleksei

      ;

      Rybníček, Michal

      ;

      Sochová, Irena

      ;

      Sohar, Kristina

      ;

      Budzhak, Vasyl

      ;

      Zin, Ewa

      ;

      Schneider, Tassilo

      ;

      Gil, Wojciech

      ;

      Klisz, Marcin

      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 ...

    • Integrating the Grading Entropy Theory (GET) into a Physics-Informed Neural Network (PINN) to predict soil hydraulic properties 

      původní článek

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      Polo Mendoza, Rodrigo Ernesto

      ;

      Mašín, David

      ;

      Duque Felfle, Jose Alejandro

      2025

      ,

      Elsevier B.V.

      ,

      Results in Engineering

      ,

      27

      (September 2025)

      The soil's hydraulic properties are fundamental for most geotechnical analyses and designs. For fully saturated soils, the Soil Saturated Hydraulic Conductivity (SSHC) is employed to quantify the capacity of the soil to ...

    • The impact of an unprecedented hotter drought on oak growth was related to climate of origin 

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      Camarero, J. Julio

      ;

      Valeriano Peňas, Cristina

      ;

      Gazol, Antonio

      2025

      ,

      Frontiers Media SA

      ,

      Frontiers in Forests and Global Change

      ,

      8

      (09 December 2025)

      Future forests will have to face compound climate events such as hotter droughts as climate keeps warming. A better understanding of tree growth resilience to such extreme droughts is key to better inform future forests ...

    • Soil cropping selects for nutrient efficient but more costly indigenous mycorrhizal fungal communities 

      původní článek

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      Buil Maldonado, Paula Alejandra

      ;

      Jansa, Jan

      ;

      Rozmoš, Martin

      ;

      Kotianová, Michala

      ;

      Bukovská, Petra

      ;

      Grilli, Gabriel

      ;

      Marro, Nicolás

      ;

      Janoušková, Martina

      2025

      ,

      Springer

      ,

      Biology and Fertility of Soils

      ,

      61

      (5)

      Conventional agriculture has been suggested to promote less mutualistic arbuscular mycorrhizal fungi (AMF). The main aim of this study was to test this assumption by a detailed functional analysis of the plant mycorrhizal ...

    • Institutionalization of the Czech and Luxembourgish Pirate Parties: a comparative perspective 

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      Cirhan, Tomáš

      ;

      Pršín, Marek

      2025

      ,

      Zeitschrift für Vergleichende Politikwissenschaft

      ,

      19

      (1)

      This paper contributes to the debate on party institutionalization by including new parties that lack both connections with existing parties and social movement structures, thus unlikely adepts to institutionalize. To that ...

    • Czech and Italian Challengers' Survival Comparative Analysis of Party Organisation and Leadership of FI, FdI, ANO and SPD Parties 

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      Cirhan, Tomáš

      ;

      Collini, Mattia

      2025

      ,

      Politologický časopis

      ,

      2025

      (1)

      Our paper explores the organisational and leadership strategies of new anti-establishment parties in Czechia and Italy. The electorally volatile party systems in the countries of Central-Eastern and Southern Europe are ...