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Publications - 6374

Receptiveness to flexible employment at Hungarian SMEs

No authors available

Publication Name: DETUROPE

Publication Date: 2018-01-01

Volume: 10

Issue: 1

Page Range: 116-130

Description:

Nowadays, only companies that are adaptable and flexible in their structure and processes can survive. The basis for a motivated company aiming for peak performance is organisational innovation. Hungary is one of the less innovative countries in Europe. Only organisations that can integrate new solutions smoothly into their everyday operations will remain truly competitive. The Government of Hungary, in its Partnership Agreement with the European Union, set out the goals for improving and supporting the adaptability of enterprises, the promotion of flexible and family-friendly workplace practices and services, and the employment of women with young children. The aim of this study is to demonstrate, through a Hungarian example, the receptiveness of Hungarian small and medium-sized enterprises to flexible forms of employment. The effect of flexible employment on economic adaptability and competitiveness through workforce efficiency and retention is examined. Its aim is the raise the awareness of options to increase employment among Hungarian SME managers.

Open Access: No

DOI: DOI not available

Immigration and regional competitiveness - Relevant theories in the migration research and in the regional science

No authors available

Publication Name: DETUROPE

Publication Date: 2018-01-01

Volume: 10

Issue: 1

Page Range: 71-81

Description:

International and interregional migrations, the geographic form of human mobility have a number of social, economic and political effects. These impacts can vary depending on the reference period, region or sector as well as on the goals and aspects of our interpretation. Another important question in connection with regional competitiveness is how decision makers act and react after perceiving migratory movements. Analysing the interference between immigration and regional development, we can rely on the well-known migration theories, however, a comparison of further models and concepts relating development and regional issues can be more useful for researchers. These questions are relevant, since the issues of the regional science, such as regional competitiveness and regional policy, have in the background strong associations with migratory phenomena. The aim of this study is to introduce the theoretical background, summarizing the mainstream solutions and the controversies as well. Thus the first part presents the role of the migration theories and these of the regional science in connection with the linkages between immigration and regional competitiveness. Besides it points out the importance of immigrants' inclusion. The next section focuses, complemented with the outcomes of a multivariate statistical analysis, on the theories on determinants and causalities of migration, exploring the connecting points with the issues of the regional policy.

Open Access: No

DOI: DOI not available

After the first lessons and experiences - Cases concerning Hungary before ECJ (2004-2007)

Balázs Horváthy

Publication Name: Acta Juridica Hungarica

Publication Date: 2008-03-01

Volume: 49

Issue: 1

Page Range: 89-110

Description:

The essay attempts to give an overview on the cases relating to Hungary before European Court of Justice in the period between 20042007, which are classified into four categories. The first part of the article analyses eleven procedures concerning petitions for preliminary rulings, illustrating the bearings of the cases and pointing out the importance as well as consequences from the point of view of the Hungarian legal order. The essay refers to the fact that activity of Hungarian courts to apply preliminary ruling procedures is exceptionally high comparing with the other nine Member States acceded to EU in 2004 and in almost each cases concerned, the references were profoundly considered by the Hungarian court. The second category described in this paper includes cases, in which Hungarian individual persons participate as litigants (including the cases before Civil Service Tribunal). The experiences of these procedures on the basis of direct complaints indicate the conclusion that in several cases, the attorneys representing the plaintiff before ECJ involve not enough responsibilities to avoid bringing obviously inadmissible actions. In the third part of the paper the reader can get an insight into the cases in which the Republic of Hungary appears as litigant. Finally the fourth category embraces cases with indirect interest relating Hungary. These are referred but not deeply examined in the article. © 2008 Akadémiai Kiadó.

Open Access: Yes

DOI: 10.1556/AJur.49.2008.1.3

Mediumship and its Cognitive 'Survival' in Identification of Collective Individuation : the Hungarian Painter-Genius Csontváry's Mediumship and 'Survival' Part I. on the Wailing Wall Picture of Csontváry

Peter Varlaki Judit Ida Steiner-Varlaki Péter Baranyi

Publication Name: 10th IEEE International Conference on Cognitive Infocommunications Coginfocom 2019 Proceedings

Publication Date: 2019-10-01

Volume: Unknown

Issue: Unknown

Page Range: 553-560

Description:

The paper deals with the mediumship and the retro-cognitive and precognitive patterns in identification of collective individuation. We attend to show the relationships between the artistic visions (pictures) of Csontváry the Hungarian genius and the dreams and active imaginations of C. G. Jung and W. Pauli by the identification of unconscious symbolic processes of collective individuation.11 This paper is dedicated to the blessed memory of Dr. Rezsö Pertorini and Dr. Anthony Storr. Thanks for the inspiration to Dr. Katalin Gellér.

Open Access: Yes

DOI: 10.1109/CogInfoCom47531.2019.9089946

Fourier transform and controlling of flux in scalar hysteresis measurement

Miklós Kuczmann

Publication Name: Physica B Condensed Matter

Publication Date: 2008-02-01

Volume: 403

Issue: 2-3

Page Range: 410-413

Description:

The paper deals with a possible realization of eliminating the effect of noise in scalar hysteresis measurements. The measured signals have been transformed into the frequency domain, and, after applying digital filter, the spectrums of the filtered signals have been transformed back to the time domain. The proposed technique results in an accurate noise-removal algorithm. The paper illustrates a fast controlling algorithm applying the inverse of the actually measured hysteresis loop, and another proportional one to measure distorted flux pattern. By developing the mentioned algorithms, it aims at the controlling of a more complicated phenomena, i.e. measuring the vector hysteresis characteristics. © 2007 Elsevier B.V. All rights reserved.

Open Access: Yes

DOI: 10.1016/j.physb.2007.08.062

Digital Twin Approaches for Gear NVH Optimization: A Literature Review of Modeling, Data Integration, and Validation Gaps

Ambrus Zelei Krisztian Horvath Krisztián Horváth Krisztián Horváth

Publication Name: Machines

Publication Date: 2025-12-01

Volume: 13

Issue: 12

Page Range: Unknown

Description:

Quiet drivetrains have become a central requirement in modern electric vehicles, where the absence of engine masking makes even subtle gear tones clearly audible. As a result, manufacturers are looking for more reliable ways to understand how design choices, manufacturing variability, and operating conditions shape gear noise and vibration. Digital Twin (DT) approaches—linking high-fidelity models with measured data throughout the product lifecycle—offer a potential route to achieve this, but their use in gear NVH is still emerging. This review examines recent work from the past decade on DT concepts applied to gears and drivetrain NVH, drawing together advances in simulation, metrology, sensing, and data exchange standards. The survey shows that several building blocks of an NVH-oriented twin already exist, yet they are rarely combined into an end-to-end workflow. Clear gaps remain. Current models still struggle with high-frequency behavior. Real-time operation is also limited. Manufacturing and test data are often disconnected from simulations. Validation practices lack consistent NVH metrics. Hybrid and surrogate modeling methods are used only to a limited extent. The sustainability benefits of reducing prototypes are rarely quantified. These gaps define the research directions needed to make DTs a practical tool for future gear NVH development. A research Gap Map is presented, categorizing these gaps and their impact. For each gap, we propose actionable future directions—from multiscale “hybrid twins” that merge test data with simulations, to benchmark datasets and standards for DT NVH validation. Closing these gaps will enable more reliable gear DTs that reduce development costs, improve acoustic quality, and support sustainable, data-driven NVH optimization.

Open Access: Yes

DOI: 10.3390/machines13121141

The assessment of financial risks of municipally owned public utility companies in hungary between 2009 and 2018

Laszlo Vasa Csaba Lentner Szilárd Hegedűs

Publication Name: Montenegrin Journal of Economics

Publication Date: 2020-01-01

Volume: 16

Issue: 4

Page Range: 29-41

Description:

The aim of this study is to assess the financial risks, as interpreted by us, of Hungarian corporations fully owned by municipalities across a national dimension after the global economic crisis broken out in 2008. In this study, financial risk was measured by profitability, liquidity and the equity ratio. We were seeking an answer to the question as to how more stringent state controls had influenced the companies’ ability to provide public services and their financial situation behind in a more robust public financial regulatory and control environment created in Hungary after 2010, that is, how the going concern principle of accounting had been implemented. Indirectly, we were also seeking an answer to the question as to how operational risks had been affected by the “breaking” effect on net income exerted by the administrative price regulation (reduction of utility costs on the consumers’ side) imposed on the services of public utility companies in 2013 (as part of the public finance re-form introduced in 2010), that is, whether a more robust regulatory environment of public finances compelled the promotion of corporate efficiency. With the complex (and inter-related) methodology of the assessments carried out, we could establish that financial risks improved, but we propose even stricter controls due the economic shock caused by the COVID-19 pandemic. Our research results present a comprehensive situational picture of municipally owned companies providing public services in an emerging market economy, which can be compared with the data of other countries as well.

Open Access: Yes

DOI: 10.14254/1800-5845/2020.16-4.3

Effect of the Particle Size Distribution of the Ballast on the Lateral Resistance of Continuously Welded Rail Tracks

Szabolcs Fischer Morteza Esmaeili Majid Movahedi Rad Jafar Chalabii Daniel Gosztola

Publication Name: Infrastructures

Publication Date: 2024-08-01

Volume: 9

Issue: 8

Page Range: Unknown

Description:

While the effect of ballast degradation on lateral resistance is noteworthy, limited research has delved into the specific aspect of ballast breakage in this context. This study is dedicated to assessing the influence of breakage on sleeper lateral resistance. For simplicity, it is assumed that ballast breakage has already occurred. Accordingly, nine granularity variations finer than No. 24 were chosen for simulation, with No. 24 as the assumed initial particle size distribution. Initially, a DEM model was validated for this purpose using experimental outcomes. Subsequently, employing this model, the lateral resistance of different particle size distributions was examined for a 3.5 mm displacement. The track was replaced by a reinforced concrete sleeper in the models, and no rails or rail fasteners were considered. The sleeper had a simplified model with clumps, the type of which was the so-called B70 and was applied in Western Europe. The sleeper was taken into consideration as a rigid body. The crushed stone ballast was considered as spherical grains with the addition that they were divided into fractions (sieves) in weight proportions (based on the particle distribution curve) and randomly generated in the 3D model. The complete 3D model was a 4.84 × 0.6 × 0.57 m trapezoidal prism with the sleeper at the longitudinal axis centered and at the top of the model. Compaction was performed with gravity and slope walls, with the latter being deleted before running the simulation. During the simulation, the sleeper was moved horizontally parallel to its longitudinal axis and laterally up to 3.5 mm in static load in the compacted ballast. The study successfully established a relationship between lateral resistance and ballast breakage. The current study’s findings indicate that lateral resistance decreases as ballast breakage increases. Moreover, it was observed that the rate of lateral resistance decrease becomes zero when the ballast breakage index reaches 0.6.

Open Access: Yes

DOI: 10.3390/infrastructures9080129

Biology, phylogenetic and evolutionary relations of Tradescantia mild mosaic virus isolates from Hungary

László Palkovics Réka Sáray János Ágoston Dóra Pinczés Asztéria Almási Katalin Salánki

Publication Name: Journal of Plant Pathology

Publication Date: 2024-08-01

Volume: 106

Issue: 3

Page Range: 1369-1374

Description:

In Western Transdanubia in 2018 and in Central-Hungary in 2022 spiderwort plants showed flower breaking symptoms and mild mosaic on the foliage, which indicated a potential virus infection. One gram of symptomatic leaf sample was collected at both locations. Potyvirus-specific ELISA tests demonstrated potyvirus infection. To identify the virus species, potyvirus-specific RT-PCR was carried out on the samples. In both samples specific PCR products were detected and cloned into pGEM®-T Easy vector. The nucleotide sequences of the inserts were determined by Sanger sequencing. BLASTn searches on the complete coat protein region of both isolates demonstrated more than 99.87% identity with Tradescantia mild mosaic virus (TraMMV; accession number OL584375). Koch postulates were fulfilled by sap inoculating seed grown spiderwort plants. Phylogenetic analyses of the TraMMV coat protein sequences revealed two distinct evolutionary lineages: a tropical subgroup with at least 97.84% identity within the group and temperate subgroup with at least 98.97% identity within the group. One major difference between the subgroups was in the triplet responsible for vector transmission. The isolates belonging to the tropical subgroup had DAG triplets, while the temperate subgroup had NAG triplets. The difference in the triplets could be caused by natural diversification, directional selection or disruptive selection. License: CC BY-NC-ND

Open Access: Yes

DOI: 10.1007/s42161-024-01661-9