Search Everything

Tip: Search using "First Name + Last Name", e.g.
János Kiss instead of Kiss János.

Publications - 6525

Improved control performance of the 3-DoF aeroelastic wing section: a TP model based 2D parametric control performance optimization

Alexandra Szollosi Peter Baranyi

Publication Name: Asian Journal of Control

Publication Date: 2017-03-01

Volume: 19

Issue: 2

Page Range: 450-466

Description:

Based on the most recent Tensor Product model transformation solutions, the paper presents an improved control performance for the most recent version of the three Degree of Freedom aeroelastic wing section model including Stribeck friction, according to signals pitch, plunge, trailing edge and control value, based on practical engineering criteria such as overshoot, undershoot, signal end values and settling time. This is achieved through proposing a novel two dimensional parametric convex hull manipulation based method for Tensor Product model transformation based Control Design Frameworks. The approach provides two TP model representations for the different requirements of the controller and observer of a given model, opening the possibility to utilize the TP model transformation's convex hull manipulation potential in control performance optimization for a separate optimization of the two TP model representations. Numerical simulation results are provided to illustrate the control performance improvements of the aeroelastic wing section model through the proposed 2D parametric convex hull manipulation based design method.

Open Access: Yes

DOI: 10.1002/asjc.1418

Factors of Responsible Entrepreneurial Behaviour: Empirical Findings from Hungary

Áron Szennay Judit Csákné Filep Melinda Krankovits

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 25-30

Description:

Sustainability is a contemporary global challenge that could be resolved only with the active and effective contribution of businesses. Thus, this paper aims to shed light on factors influencing entrepreneurs’ responsible behaviour. The analysis is based on the Hungarian merged dataset of the Global Entrepreneurship Monitor (GEM) Adult Population Survey (APS) 2021 and 2022 (n=697). The results are based on statistical analyses, namely non-parametric correlation analyses and factor analysis. The findings show that variables concerning entrepreneurs’ responsible attitudes and behaviours significantly correlate with each other – except for two variables concerning directly with the SDGs, namely SDG awareness and considering SDG in KPIs. Using the five correlated variables, two factors can be created, where variables concerning intentions decouple from those concerning taking any steps towards minimising environmental or maximising social impacts. These results implicate that although entrepreneurs tend to consider environmental and/or societal aspects of their business decisions, they come short of taking steps towards them. Thus, responsible actions should be incentivised with education or targeted aids.

Open Access: Yes

DOI: 10.3303/CET23107005

Tax knowledge in connection with tax compliance in Hungary

Katalin Borbély Rita Anna Ambrus

Publication Name: Journal of Infrastructure Policy and Development

Publication Date: 2024-01-01

Volume: 8

Issue: 11

Page Range: Unknown

Description:

During the examination of tax education, a significant part of the professional literature defines taxpayers as a homogeneous group, however, among others, the level of educational attainment and the digital skills of taxpayers are also important. This research investigates the role of knowledge in connection with tax compliance. The article is based on the statements from the professional literature and analysis of secondary data from national and international authorities and institutions. It also includes some comparisons of the components of the COM-B model on the data of nine European countries and sets up a model of tax behaviour based on Hungarian conditions. According to the classification based on the comparison, the performance of Hungary is at the lowest level among nine examined countries. Considering the complexity of the tax system, the knowledge of taxpayers is incomplete in Hungary. A developed version of the COM-B model points out that there is a close connection between capability and opportunity as well and these components can reinforce each other. With the adequate motivation and literacy as well as the knowledge of procedures can facilitate tax compliance. It can be concluded that successful tax education recognises and targets various groups of taxpayers. The Hungarian tax authorities treat taxpayers as a homogeneous group, however, there are slight developments by using several communication channels. In the current situation, the most important is to find the forms and levels of tax education to make the taxpayer able to comply.

Open Access: Yes

DOI: 10.24294/jipd.v8i11.8115

Interactive training and modeling environment for considering pallet setup features in storage location assignment of order picking zone

János Botzheim Tamás Bódis Kitti Udvardy

Publication Name: 10th France Japan Congress 8th Europe Asia Congress on Mecatronics Mecatronics 2014

Publication Date: 2014-01-22

Volume: Unknown

Issue: Unknown

Page Range: 64-69

Description:

Order picking is the most labor-intensive and costly activities in many warehouses by consuming ca. 60 % of the total operating expenses. Order picking development strategies mostly concentrate on warehouse layout, storage assignment policy, routing, zoning and on batching methods, while the physical parameters of the products - which are hardly ever taken into account - do also have a significant impact on the processes. Researchers of the pallet-loading problem could provide a wider horizon on considerable parameters, but their results are rarely implemented into order picking processes. In order to design a successful and optimal order picking system, considering all influential parameters is inevitable, since all of them are strongly connected to each other. This paper introduces an interactive training and modeling tool, which allows us to model, test, analyze and to evaluate order picking algorithms by taking numerous influencing factors into consideration. We describe an application of the simulation environment designed for highlighting the importance of physical product parameters in order picking performance.

Open Access: Yes

DOI: 10.1109/MECATRONICS.2014.7018613

Iconic Arable Weeds: The Significance of Corn Poppy (Papaver rhoeas), Cornflower (Centaurea cyanus), and Field Larkspur (Delphinium consolida) in Hungarian Ethnobotanical and Cultural Heritage

Bálint Czúcz G. Pinke V. Kapcsándi

Publication Name: Plants

Publication Date: 2023-01-01

Volume: 12

Issue: 1

Page Range: Unknown

Description:

There are an increasing number of initiatives that recognize arable weed species as an important component of agricultural biodiversity. Such initiatives often focus on declining species that were once abundant and are still well known, but the ethnographic relevance of such species receives little recognition. We carried out an extensive literature review on the medicinal, ornamental, and cultural applications of three selected species, Papaver rhoeas, Centaurea cyanus, and Delphinium consolida, in the relevant Hungarian literature published between 1578 and 2021. We found a great diversity of medicinal usages. While P. rhoeas stands out with its sedative influence, D. consolida was mainly employed to stop bleeding, and C. cyanus was most frequently used to cure eye inflammation. The buds of P. rhoeas were sporadically eaten and its petals were used as a food dye. All species fulfilled ornamental purposes, either as garden plants or gathered in the wild for bouquets. They were essential elements of harvest festivals and religious festivities, particularly in Corpus Christi processions. P. rhoeas was also a part of several children’s games. These wildflowers were regularly depicted in traditional Hungarian folk art. In poetry, P. rhoeas was used as a symbol of burning love or impermanence; C. cyanus was frequently associated with tenderness and faithfulness; while D. consolida regularly emerged as a nostalgic remembrance of the disappearing rural lifestyle. These plants were also used as patriotic symbols in illustrations for faithfulness, loyalty, or homesickness. Our results highlight the deep and prevalent embeddedness of the three iconic weed species studied in the folk culture of the Carpathian Basin. The ethnobotanical and cultural embeddedness of arable weed species should also be considered when efforts and instruments for the conservation of arable weed communities are designed.

Open Access: Yes

DOI: 10.3390/plants12010084

Long-term trends in the corrosion state and surface properties of the stainless steel tubes of steam generators decontaminated chemically in VVER-type nuclear reactors

D. Oravetz Gábor Patek Bernadett Baja P. Kádár N. A. Szabó Varga Kálmán Zoltán Németh Schunk János Z. Homonnay E. Kuzmann

Publication Name: Corrosion Science

Publication Date: 2009-12-01

Volume: 51

Issue: 12

Page Range: 2831-2839

Description:

At some VVER-type pressurized water nuclear reactors (Russian-type PWR) different versions of the so-called AP-CITROX method have been widely used for the chemical decontamination of the heat exchanger tubes of steam generators. In the period of 2000-2007, within the frame of a joint-project dealing with the comprehensive investigation of the corrosion state of the steam generators of the Paks Nuclear Power Plant, Hungary, effects of the AP-CITROX chemical decontamination procedure on the corrosion and surface characteristics of the heat exchanger tubes have been studied. These studies provide evidences that some adverse features (formation of a "hybrid" layer with accelerated corrosion rate and great mobility) can be detected after 1-3 years of applying the AP-CITROX procedure. The present work is a continuation of the above program and focused on the long-term trends in the corrosion state and structure of protective oxide-layer grown on the decontaminated surfaces. The results of electrochemical (voltammetric), surface analytical (SEM-EDX, CEMS) and mobility (ICP-OES) studies have revealed that (1) some beneficial changes in the corrosion characteristics, mobility and chemical composition of the inner surfaces of decontaminated heat exchanger tubes can be observed in the long run, and (2) the passivity of the oxide-layers formed on decontaminated surfaces of steel tubes exhibits favorable tendency after 4-7 years under normal operation conditions. © 2009 Elsevier Ltd. All rights reserved.

Open Access: Yes

DOI: 10.1016/j.corsci.2009.08.007

The three hidden pillars of the world: On the unconscious synchronistic 'cognitive cooperation' of C.G. Jung, W. Pauli and C. Kerényi Part II: On the late collaborations of the three great minds (1954-57)

Péter Várlaki Peter Baranyi

Publication Name: 5th IEEE International Conference on Cognitive Infocommunications Coginfocom 2014 Proceedings

Publication Date: 2014-01-23

Volume: Unknown

Issue: Unknown

Page Range: 617-628

Description:

The second part of the paper deals with the Jung-Kerényi -Pauli dominantly unconscious 'cooperation' on the basis of the synchronistic background in the years 1954-57.The main patterns of the 'especial communication' is based also on the structure and meaning of the 'Eleusinian mysteries' together with the Perseus mythologem and its possible relation to the 'Leviathan myth' exploring as an extended 'dynamic hermeneutical system'.

Open Access: Yes

DOI: 10.1109/CogInfoCom.2014.7020417

Joint experiments on the Tokamaks CASTOR and Ta10

E. Sukhov G. M. Vorobjev A. Singh V. Weinzettl B. Kuteev G. Mank G. Kirnev R. Gonzales A. Malaquias I. Ďuran B. Tál N. Kirneva A. Melnikov P. Khorshid M. Hron P. Peleman J. Sentkerestiova A. Fonseca J. Zajac M. Berta A. Talebitaher M. Sokolov V. Vershkov C. R.Gutierrez Tapia A. W. Kraemeraflecken I. El Chama Neto E. Del Bosco J. G. Ferreira J. Brotankova J. Stockel M. Gryaznevich R. Dejarnac G. Van Oost E. Dufkova V. Soldatov V. Budaev Y. Kuznetsov L. Ruchko H. Hegazy A. Ovsyannikov H. Hegazy L. I. Krupnik S. Zoletnik

Publication Name: Aip Conference Proceedings

Publication Date: 2008-12-01

Volume: 996

Issue: Unknown

Page Range: 24-33

Description:

Small tokamaks may significantly contribute to the better understanding of phenomena in a wide range of fields such as plasma confiement and energy transport; plasma stability in different magnetic configurations; plasma turbulence and its impact on local and global plasma parameters; processes at the plasma edge and plasmaawall interaction; scenarios of additional heating and nonainductive current drive; new methods of plasma profile and parameter control; development of novel plasma diagnostics; benchmarking of new numerical codes and so on. Furthermore, due to the compactness, flexibility, low operation costs and high skill of their personnel small tokamaks are very convenient to develop and test new materials and technologies. Small tokamaks are suitable and important for broad international cooperation, providing the necessary environment and manpower to conduct dedicated joint research programmes. In addition, the experimental work on small tokamaks is very appropriate for the education of students, scientific activities of postagraduate students and for the training of personnel for large tokamaks. The first Joint (Host Laboratory) Experiment (JE1) has been carried out in 2005 on the CASTOR tokamak at the IPP Prague, Czech Republic. It was jointly organized by the IPPaASCR and KFKI HAC, Budapest, involved 20 scientists from 7 countries and was supported through the IAEA and the ICTP, Trieste. The objective of JE1 was to perform studies of plasma edge turbulence and plasma confinement. Following the success of JE1, JE2 has been performed on Ta10 at RRC "Kurchatov Institute" in Moscow; 30 scientists from 13 countries participated in this experiment. This experiment aimed to continue JE1 turbulence studies, now extending them to the plasma core. Results of JE1 and JE2 will be overviewed and compared. © 2008 American Institute of Physics.

Open Access: Yes

DOI: 10.1063/1.2917019

Social Robots: A Retrospective Bibliometric Network Analysis

Horst Treiblmaier Edit Süle Imen Zrelli Abdo Hassoun Abderahman Rejeb Karim Rejeb

Publication Name: Technology Knowledge and Learning

Publication Date: 2026-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

Social robots are becoming increasingly prominent across various domains, yet comprehensive bibliometric studies detailing the field's development are scarce. To bridge this gap, this study conducts an extensive bibliometric and network analysis of social robot research and illustrates its dynamic evolution from 1989 to 2024. Based on 5338 publications from the Scopus database, authored by 14,693 researchers, this study highlights the most prominent scholars and influential academic articles. The analysis reveals various bibliometric networks, including citation, co-citation, and collaboration networks, as well as keyword co-occurrence networks, and presents two intellectual structure maps: a conceptual structure map and a thematic map. The findings identify five distinct growth phases in social robot research, with publication output peaking in 2021. The United States, China, Italy, Japan, and the United Kingdom are the most productive and collaborative countries, and the International Journal of Social Robotics is recognized as the leading publication venue. Citation and co-citation analyses indicate that Bartneck, Belpaeme, and Scassellati are central influential authors in the field. Keyword and thematic analyses reveal four primary thematic clusters: human–robot interaction and design, assistive and healthcare applications, educational and developmental uses, and AI-driven technological advancements. These insights emphasize evolving research patterns and highlight areas with strong future growth potential, particularly in healthcare and socially assistive contexts. The key trends and influential contributions presented in the paper provide critical insights for future research and practical applications in the field of social robots.

Open Access: Yes

DOI: 10.1007/s10758-026-09965-8