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Publications - 6525

Overview Study of the Applications of Unmanned Aerial Vehicles in the Transportation Sector †

Miklós Kuczmann Áron Ballagi Barnabás Kiss

Publication Name: Engineering Proceedings

Publication Date: 2024-01-01

Volume: 79

Issue: 1

Page Range: Unknown

Description:

This study examines the use of Unmanned Aerial Vehicles (UAVs) in transportation, focusing on traffic monitoring and accident prevention. UAVs provide a cost-effective means for traffic surveillance, route planning, and accident analysis, enhancing data accuracy and timeliness. The paper discusses autonomous and human-intervention-supported drone systems for traffic surveillance, addressing technological and operational challenges and the balance needed for practical implementation. It also presents recent advancements, including a forerunner drone model, and references research on UAVs for maritime navigation safety, underscoring the need for their safe and efficient integration into transportation systems.

Open Access: Yes

DOI: 10.3390/engproc2024079011

Nonlinear finite element method in magnetism

Miklós Kuczmann

Publication Name: Pollack Periodica

Publication Date: 2009-08-01

Volume: 4

Issue: 2

Page Range: 13-24

Description:

The paper presents and compares three potential formulations to solve nonlinear static magnetic field problems by applying the fixed-point technique and the Newton-Raphson scheme. Nonlinear characteristics have been handled by the polarization method in the two algorithms. The proposed combination of Newton-Raphson scheme and the polarization formulation result in a very effective nonlinear solver, because only the derivate of the characteristics, i.e. only the permeability or the reluctivity has to be used. That is why, this method can be prosperous to solve nonlinear problems with hysteresis, and it is faster than the classical fixed-point method.

Open Access: Yes

DOI: 10.1556/Pollack.4.2009.2.2

Analysis of railway vehicles' bogies with different wheel forces

László Bozóky Vince Nagy

Publication Name: Proceedings of the Mini Conference on Vehicle System Dynamics Identification and Anomalies

Publication Date: 1996-12-01

Volume: Unknown

Issue: Unknown

Page Range: 203-213

Description:

For the past ten years, geometry and loaded tests on railway bogies are in progress at the Department for Automotive and Railway Engineering of Szechenyi Istvan College. Following analysis of running and driven bogies and laboratory measurements, operating test of running vehicles has also been conducted. Initial results made it possible to perform different theoretical and computer analysis.

Open Access: Yes

DOI: DOI not available

AR Solution for Indoor Drone Motion Forecasting

Imre Paniti József Tóth Erik Tóth János Nacsa

Publication Name: Springer Proceedings in Advanced Robotics

Publication Date: 2024-01-01

Volume: 33 SPAR

Issue: Unknown

Page Range: 60-64

Description:

In case of indoor drone applications three different areas are classified: inventory management, indoor intra-logistics and inspection & surveillance. For each drone movement there is an optimal trajectory where the time for reaching point B from point A can be minimized. This optimal trajectory cannot be executed in case a human is blocking the route. In order to avoid collisions with the drone, either the drone trajectory has to be modified in real-time (which might cost additional time and energy in case the drone delivers a heavy object) or the human operator has to be warned with a pre-defined understandable signal so he/she can modify his/her movement in time. In this paper, the implementation of an Augmented Reality solution (previously tested in an industrial relevant environment on a collaborative robot) using a micro drone is presented.

Open Access: Yes

DOI: 10.1007/978-3-031-76428-8_12

Impact of agricultural drought on sunflower production across hungary

Tamás Ratonyi Endre Harsányi A. Széles Muhammad Habib Ur Rahman Bashar Bashir István Bácskai Karam Alsafadi Safwan Mohammed Firas Alsilibe Csaba Juhász Abdullah Alsalman

Publication Name: Atmosphere

Publication Date: 2021-10-01

Volume: 12

Issue: 10

Page Range: Unknown

Description:

In the last few decades, agricultural drought (Ag.D) has seriously affected crop production and food security worldwide. In Hungary, little research has been carried out to assess the impacts of climate change, particularly regarding droughts and crop production, and especially on regional scales. Thus, the main aim of this study was to evaluate the impact of agricultural drought on sunflower production across Hungary. Drought data for the Standardized Precipitation Index (SPI) and the Standardized Precipitation Evapotranspiration Index (SPEI) were collected from the CAR-BATCLIM database (1961–2010), whereas sunflower production was collected from the Hungarian national statistical center (KSH) on regional and national scales. To address the impact of Ag.D on sunflower production, the sequence of standardized yield residuals (SSYR) and yield losses YlossAD was applied. Additionally, sunflower resilience to Ag.D (SRAg.D) was assessed on a regional scale. The results showed that Ag.D is more severe in the western regions of Hungary, with a significantly positive trend. Interestingly, drought events were more frequent between 1990 and 2010. Moreover, the lowest SSYR values were reported as −3.20 in the Hajdu-Bihar region (2010). In this sense, during the sunflower growing cycle, the relationship between SSYR and Ag.D revealed that the highest correlations were recorded in the central and western regions of Hungary. However, 75% of the regions showed that the plantation of sunflower is not resilient to drought where SRAg.Dx < 1. To cope with climate change in Hungary, an urgent mitigation plan should be implemented.

Open Access: Yes

DOI: 10.3390/atmos12101339

Towards a modern, integrated virtual laboratory system

Miklós Kuczmann Tamás Budai

Publication Name: Acta Polytechnica Hungarica

Publication Date: 2018-01-01

Volume: 15

Issue: 3

Page Range: 191-204

Description:

The aim of this paper is to give an overview on virtual and remote laboratory systems and to evaluate current solutions focusing on feasibility and applicability in higher education. Based on the conclusions of this evaluation, a new set of requirements are established against a modern virtual laboratory system. Finally, an overview of state of the art infocommunication technologies, including cognitive infocommunication are presented, which can help create high user experience in the new virtual laboratory environment.

Open Access: Yes

DOI: 10.12700/APH.15.3.2018.3.11

Development of Magnetic Hysteresis Loop Measurement System for Characterization of 3D-Printed Magnetic Cores

Tamas Orosz Miklos CSIZMADIA Tamás Horváth

Publication Name: Electronics Switzerland

Publication Date: 2025-06-01

Volume: 14

Issue: 11

Page Range: Unknown

Description:

Today, numerous advanced options exist for analyzing and measuring magnetic hysteresis loops and core loss across a broad spectrum of applications. Most of these systems are compact and ready to use, fulfilling the measurement and data processing requirements for laminated iron cores according to the standards. However, modeling newly developed materials with complex structures or the high-frequency behavior of iron cores, and the computation of dynamic hysteresis properties’ temperature dependence, are still challenging problems in the field. Moreover, these standardized measurement tools are relatively expensive, and most of them represent a black box that impedes research and further development. This paper presents the development of a cheap and accessible measurement system that is explicitly designed for recording the hysteresis properties of 3D-printed iron cores. The paper presents a comprehensive overview of the design process, components, circuitry, and simulations integral to this project. The paper presents a completed circuit simulation conducted using LTspice and validation of the prototype’s measurement performance. The measurements obtained with the proposed system show good agreement with those of the reference setup, demonstrating its accuracy and practical applicability.

Open Access: Yes

DOI: 10.3390/electronics14112235

The influence of hybrid leadership in sustainable women entrepreneurial performance

Walton Wider Syed Far Abid Hossain Mohammad Fakhrul Islam Pratikshya Bhandari Md Rashed Tania Akter Tausif Bari Sumaiya Selim Sushme

Publication Name: Sustainable Futures

Publication Date: 2025-06-01

Volume: 9

Issue: Unknown

Page Range: Unknown

Description:

In the contemporary era, strategic leadership style plays significant role in entrepreneurial performance. The key purpose of this study is to examine the influence of hybrid (self, shared and opinion) leadership in women entrepreneurial performance towards sustainable growth. This mixed method study investigated data in two ways. First, the study analyzed the data and measured the hypotheses employing the partial least squares structured equation model (PLS-SEM) in SmartPLS software 4 packages. Second, fsQCA explores multiple causal relationships between the constructs. The fsQCA results claim that the multiple causal relationships among the shared, self and opinion leadership have strong significant impact on women entrepreneurial performance. In particular, it is addressed that different entrepreneurial performances are positively associated with the extent of self, shared and opinion leadership. Theoretically, this study contributes to the understanding of women leadership behavior in entrepreneurial performance with a mixed statistical analysis. The study has valuable insights for the women entrepreneurs and concerned

Open Access: Yes

DOI: 10.1016/j.sftr.2025.100727

Review Paper on the Field Measurement of Parcel Packaging Drop for Testing Purposes

Péter Böröcz Zsófia Németh

Publication Name: Packaging Technology and Science

Publication Date: 2025-05-01

Volume: 38

Issue: 5

Page Range: 345-357

Description:

The parcel delivery shipping industry has developed rapidly all over the world in the last 10–15 years. These parcel packages are generally small and have a high risk of damage due to the numerous handling events during delivery services. Inefficient packaging solutions can lead to significant costs and increase the occurrence of product damage. This problem is widely known, and packaging engineers have tried to simulate field physical events in the laboratory to optimize the protective packaging system. Drop events during parcel delivery are one of the primary causes of damage for small individual shipments and need to be precisely simulated to achieve optimized product protection. Over the past 50 years, drop tests have become common practice as a pre-shipment test for parcel packages, and many devices have been developed to measure and observe these physical events during package transit. Due to the nature of packages and their variations, different field measurements and observations have been presented across continents and countries and have been implemented in general practices. A review of drop event observations is required to summarize and critically evaluate recent results. This review begins with an overview of the drop observation methods [real drop height (RDH) and effective drop height (EDH)], then discusses methods proposed by standards organizations, followed by a focus on the setup and materials of measuring systems used by researchers to record the events. Finally, a summary of previous results is presented, which can serve as a guide for further research on the topic.

Open Access: Yes

DOI: 10.1002/pts.2875