Články / Articles (NTIS) Collection home page

Browse
Subscribe to this collection to receive daily e-mail notification of new additions RSS Feed RSS Feed RSS Feed
Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 291
Farhadizadeh, Alireza , Kozák, Tomáš
The importance of discharge voltage in DC magnetron sputtering for energy of sputtered and backscattered atoms on the substrate: Monte-Carlo simulations

The main goal of this work is to investigate the number and energy of the arriving atoms to the growing films with respect to the discharge voltage at a given input power using Monte-Carlo simulation for light and heavy elements (C, Al, Ti, Zr, Hf, Ta, W, and&#x...

Gruber, Ivan , Hrúz, Marek , Ircing, Pavel , Neduchal, Petr , Zítka, Tomáš , Hlaváč, Miroslav , Zajíc, Zbyněk , Švec, Jan , Bulín, Martin
OCR Improvements for Images of Multi-page Historical Documents

This work presents a pipeline for processing digitally scanned documents, reading their textual content, and storing it in a dataset for the purpose of information retrieval. The pipeline is able to handle images of various quality, whether they were obtained by a digital scanner&#...

Purcell, Christopher Charles , Ryan, Joe , Ryjáček, Zdeněk , Skyvová, Mária
On Exclusive Sum Labellings of Hypergraphs

The class E(k) of hypergraphs with a k-exclusive sum labelling is hereditary, but non-trivial to characterise even for k=1. Our main result is a complete description of the minimal forbidden induced subhypergraphs of E(1) that are 3-uniform with maximum vertex degree 2. We also...

Tezaur, Radek , Vaněk, Petr
Improved convergence bounds for two-level methods with an improved convergence bounds for two-level methods with an aggressive coarsening and massive polynomial smoothing

An improved convergence bound for the polynomially accelerated two-level method of Brousek et al. [Electron. Trans. Numer. Anal., 44 (2015), pp. 401–442, Section 5] is proven. This method is a reinterpretation of the smoothed aggregation method with an aggressive coarsening and massive ...

Machuldová, Alena , Houdová, Lucie , Kratochvílová, Kateřina , Leba, Martin , Jindra, Pavel , Ostašov, Pavel , Macečková, Diana , Klieber, Robin , Gmucová, Hana , Šrámek, Jiří , Holubová, Monika
Single-Nucleotide Polymorphisms in MICA and MICB Genes Could Play a Role in the Outcome in AML Patients after HSCT

NKG2D and its ligands, MICA and MICB, are known as the key regulators of NK cells. NK cells are the first reconstituted cells after the allogeneic hematopoietic stem cell transplantation (HSCT); therefore, it is crucial to understand their role in HSCT outcome. In the presente...

Machuldová, Alena , Holubová, Monika , Caputo, Valentina S. , Čedíková, Miroslava , Jindra, Pavel , Houdová, Lucie , Pitule, Pavel
Role of Polymorphisms of NKG2D Receptor and Its Ligands in Acute Myeloid Leukemia and Human Stem Cell Transplantation

Natural killer cells possess key regulatory function in various malignant diseases, including acute myeloid leukemia. NK cell activity is driven by signals received through ligands binding activating or inhibitory receptors. Their activity towards elimination of transformed or virally infected cells&#...

Gruber, Ivan
Heterogeneous Face Recognition from Facial Sketches

This paper presents a short summary of a dissertation thesis. The thesis presents a novel approach named X-Bridge for image-to-sketch translation for automatic heterogeneous face recognition. X-Bridge is based on a conditional adversarial network with an additional reconstruction path and a ...

Houška, Jiří , Rezek, Jiří , Čerstvý, Radomír
Dependence of the ZrO2 growth on the crystal orientation: growth simulations and magnetron sputtering

The growth of crystalline ZrO2 is studied by a combined approach of atom-by-atom growth simulations, high-power impulse magnetron sputtering and conventional pulsed magnetron sputtering. We focus on the energy of arriving atoms of various elements and investigate how does it affect the ...

Nečesal, Petr , Sobotková, Iveta
Localization of Fučík curves for the second order discrete Dirichlet operator

In this paper, we deal with the second order difference equation with asymmetric nonlinearities on the integer lattice and we investigate the distribution of zeros for continuous extensions of positive semi-waves. The distance between two consecutive zeros of two different positive semi-wave...

Goubej, Martin , Königsmarková, Jana , Kampinga, Ronald , Nieuwenkamp, Jakko , Paquay, Stéphane
Employing finite element analysis and robust control concepts in mechatronic system design-flexible manipulator case study

The paper deals with development of a methodology for mechatronic system design using state-of-the-art model-based system engineering methods. A simple flexible robotic arm is considered as a benchmark problem for the evaluation of various techniques used in the phases of modelling, analysis...

Varillas Delgado, Javier , Očenášek, Jan , Torner, Jordi , Alcalá, Jorge
Understanding imprint formation, plastic instabilities and hardness evolutions in FCC, BCC and HCP metal surfaces

Nanoindentation experiments in metal surfaces are characterized by the onset of plastic instabilities along with the development of permanent nanoimprints and dense defect networks. This investigation concerns massive molecular dynamics simulations of nanoindentation experiments in FCC, BCC and HCP me...

Zauner, L. , Bahr, A. , Kozák, Tomáš , Čapek, Jiří , Wojcik, T. , Hunold, O. , Kolozsvári, S. , Zeman, Petr , Mayrhofer, P.H. , Riedl, H.
Time-averaged and time-resolved ion fluxes related to reactive HiPIMS deposition of Ti–Al–N films

Time-averaged and time-resolved ion fluxes during reactive HiPIMS deposition of Ti–Al–N thin films are thoroughly investigated for the usage of Ti–Al composite targets. Ion mass spectroscopy analysis revealed, that increasing Al content in the target material or reducing the N2 flow-rate rat...

Kagerer, S. , Zauner, L. , Wojcik, T. , Koloszvári, S. , Kozák, Tomáš , Čapek, Jiří , Zeman, Petr , Riedl, H. , Mayrhofer, P.H.
Reactive HiPIMS deposition of Al-oxide thin films using W-alloyed Al targets

We investigated in detail the influence of 2 at.% tungsten in the Al-target on the process stability and phase formation during reactive DC magnetron sputtering as well as high power impulse magnetron sputtering (HiPIMS) of Al2O3-based coatings. The small addition of W to the ...

Rendl, Jan , Dyk, Štěpán , Smolík, Luboš
Nonlinear dynamic analysis of a tilting pad journal bearing subjected to pad fluttering

This work brings an overview of the nonlinear dynamics of four-segment tilting pad journal bearings (TPJB) in load-between-pads configuration supported on flexible pivots. We focus primarily on analysing the sub-synchronous motion of statically unloaded pads, also called pad fluttering. In this&#...

Hynčík, Luděk , Kochová, Petra , Špička, Jan , Bońkowski, Tomasz , Cimrman, Robert , Kaňáková, Sandra , Kottner, Radek , Pašek, Miloslav
Identification of the LLDPE Constitutive Material Model for Energy Absorption in Impact Applications

Current industrial trends bring new challenges in energy absorbing systems. Polymer materials as the traditional packaging materials seem to be promising due to their low weight, structure, and production price. Based on the review, the linear low-density polyethylene (LLDPE) material was id...

Poutanen, Markku , Kotsakis, Christopher , Boy, Jean-Paul , Jaeggi, Adrian , Reguzzoni, Mirko , Bogusz, Janusz , Huang, Cheng-Li , Kealy, Allison , Gikas, Vassilis , Novák, Pavel , Crespi, Mattia , Eicker, Annette , Boening, Carmen , Yang, Yuanxi , Kopp, Heidrun , Mueller, Juergen , Santos, Marcelo , Rozsa, Szabolcs , Toth, Gyula
International Union of Geodesy and Geophysics (IUGG)

The Geodesist’s Handbook is published by the International Association of Geodesy (IAG) periodically after each IUGG/IAG General Assembly. The objective is to present the current IAG structure and its specifications, and to introduce the terms of reference and the officers of the A...

Varga, Matej , Pitoňák, Martin , Novák, Pavel , Basic, Tomislav
Contribution of GRAV-D airborne gravity to improvement of regional gravimetric geoid modelling in Colorado, USA

This paper studies the contribution of airborne gravity data to improvement of gravimetric geoid modelling across the mountainous area in Colorado, USA. First, airborne gravity data was processed, filtered, and downward-continued. Then, three gravity anomaly grids were prepared; the first grid&#x...

Mareš, Pavel , Dubau, M. , Polášek, Jan , Mates, Tomáš , Kozák, Tomáš , Vyskočil, Jiří
High deposition rate films prepared by reactive HiPIMS

Theoretical models indicate that reactive HiPIMS can deliver higher deposition rates compared to the mid-frequency pulsed dc magnetron sputtering (Mf-PDCMS) due to a lower degree of target poisoning. To confirm these theoretical results, series of experiments were performed in laboratory depositi...

Tangdamrongsub, Nattachet , Šprlák, Michal
The Assessment of Hydrologic- and Flood-Induced Land Deformation in Data-Sparse Regions Using GRACE/GRACE-FO Data Assimilation

The vertical motion of the Earth’s surface is dominated by the hydrologic cycle on a seasonal scale. Accurate land deformation measurements can provide constructive insight into the regional geophysical process. Although the Global Positioning System (GPS) delivers relatively accurate measurements,&#x...

Drábek, Pavel , Takáč, Peter
Travelling waves in the Fisher–KPP equation with nonlinear degenerate or singular diffusion

We consider a one-dimensional reaction–diffusion equation of Fisher–Kolmogoroff– Petrovsky–Piscounoff type. We investigate the effect of the interaction between the nonlinear diffusion coefficient and the reaction termon the existence and non-existence of travelling waves. Our diffusion coefficient is allowed&#...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 291