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Found 6278 publications

Unpacking IT-Driven Digital Transformation in Marketing 4.0 Through a Sociomaterial Gioia Lens

Ankit Mehrotra Nourah O. Alshaghdali Istvan Drotar Sushant Kumar Vishnoi

Publication Name: Journal of Global Information Management

Publication Date: 2025-01-01

Volume: 33

Issue: 1

Page Range: Unknown

Description:

The application of Artificial Intelligence (AI)-enabled technologies into the retail environment has led to the emergence of the Marketing 4.0 paradigm, which integrates customer digital and physical touch-points to deliver value. The study used sociomateriality as a theoretical lens to examine how AI-driven marketing practices were enacted, negotiated, and established in retail organizations through human-material entanglements. The crowdsourcing platform Prolific Academic was used to collect data from retail professionals through open-ended essays. Data were analyzed using Gioia's methodology, which led to the identification of five dimensions—sociomaterial entanglement, material agency, situated practices, temporal emergence, and sociomaterial identity—which aligned with sociomateriality theory, encouraging the adoption of Marketing 4.0 in the retail context. The study developed a holistic framework to visualize the relationships that emerged from the participants' responses, addressing the criticalities of the Marketing 4.0 ecosystem.

Open Access: Yes

DOI: 10.4018/JGIM.393626

Crisis, institutional change and peripheral industrialization: Municipal-central state relations and changing dependencies in three old industrial towns of Hungary

Ernő Molnár Gergő Gajzágó Melinda Mihály Erika Nagy

Publication Name: Applied Geography

Publication Date: 2021-11-01

Volume: 136

Issue: Unknown

Page Range: Unknown

Description:

This paper aims to discuss radical changes, institutional responses and their socio-spatial consequences by focusing on reorganisation of institutional settings of local economic development after the global financial crisis (2008). We focus on the complexity of institutional change and social relations driving those in three old industrial towns (Dunaújváros, Martfű and Tatabánya in Hungary) that faced a functional, cognitive and political lock-in in the 1990s, and emerged as spaces of encounter of global production networks, governmental development policies and local society in the 2000s. This entailed a complex and dynamic assembly of various interests and strategies, providing a scope for local institutional experimentations that were interrupted by the global crisis and the resulting macro-structural changes. We place municipal agency, its uneasy, contested and changing relation to the central state in the focus. We discuss how the introduction of a new regulative system and institutional-spatial hierarchies in Hungary after the 2008 crisis enhanced central state power, and how that was mobilized to develop a new regime in which communities were losing control over their resources, and local assets were being channelled in peripheral industrialization orchestrated by the central government. Discussing municipal agency in a strategic-relational approach allows us to highlight the depth and multiple consequences of the crisis locally beyond market relations, giving an insight in the spatial rearrangement of power in relation to peripheral industrialization.

Open Access: Yes

DOI: 10.1016/j.apgeog.2021.102576

Characterisation of Inhomogeneous Plastic Deformation of AlMg Sheet Metals during Tensile Tests

Szabolcs Szalai Dóra Harangozó Imre Czinege

Publication Name: Iop Conference Series Materials Science and Engineering

Publication Date: 2020-08-25

Volume: 903

Issue: 1

Page Range: Unknown

Description:

The Portrevin-Le-Chatelier (PLC) effect was analysed quantitatively in the selected AlMg alloys with Mg-content between 2,8-4,6%. The propagation and characteristics of PLC bands were detected by digital image correlation (DIC) technique and the parameters of the bands were evaluated from strain distributions of tensile test specimens. In parallel, stress-strain curves were analysed evaluating stress serrations. The numerically defined parameters of changes in stress and strain were used for characterising the PLC effect on the behaviour of different sheet metals. General statements of literature were numerically proven for the tested materials and the effect of magnesium content on stress amplitude was analysed in detail.

Open Access: Yes

DOI: 10.1088/1757-899X/903/1/012023

Knowledge management strategy as a chance of small and medium-sized enterprises

Bencsik Andrea Tímea Juhász

Publication Name: International Business Strategy and Entrepreneurship an Information Technology Perspective

Publication Date: 2013-11-30

Volume: Unknown

Issue: Unknown

Page Range: 52-81

Description:

This chapter shows how SMEs can compete with multinational companies. This chapter was written on the basis of practical research results. In this research, Hungarian and Slovakian SMEs were investigated from the view of a Knowledge-Based economy. The question was how they can face future challenges. The researchers wanted to know how SMEs handle their chance which is hidden in their way of thinking about a knowledge strategy. As a result, these companies seem to be afraid, uncertain, and think their success is only luck or a current incident. They live a 'fly by night' existence, and they do not feel the importance of development, of studying, of knowledge; they run after work and money. These enterprises feel that they have to survive, and to this, they need money and financial capital. Therefore, knowledge and studying fall behind.

Open Access: Yes

DOI: 10.4018/978-1-4666-4753-4.ch004

Mirages and Illusions: The Prospects of Hungarian Imperial Ambitions during the Era of Dualism (1867–1918)

Balázs Pálvölgyi

Publication Name: Journal on European History of Law

Publication Date: 2025-01-01

Volume: 16

Issue: 2

Page Range: 69-78

Description:

Although the Hungarian political elite recognized that it is the Austro-Hungarian Monarchy which provided the country with a position of great power, from the 1890 s onwards there was a noticeable increase in independent Hungarian expansionist efforts. Among the complex reasons for this were the results of the Hungarian state’s modernization program, the economic development, and the emergence of a new elite of officials and politicians who had been socialised in the institutional system of Dualism, were au fait with the system, and were able to use it. The strengthening of Hungarian positions and the search for opportunities to assert the country’s interests within the common institutional system of Austria-Hungary, a series of economic policy measures, efforts to gain ground economically, mainly in the south-east, and, to a certain extent and in certain points, the goal of creating a Hungarian nation state emerged as means of achieving expansionist goals. Although the political elite could rightly feel that the country’s room for manoeuvre, weight, and ability to assert its interests within the Monarchy had increased, giving rise to a certain optimism, this proved to be a kind of optical illusion. It is true that Hungary’s clout within the Monarchy had increased, but the Austro-Hungarian Monarchy was steadily losing its importance compared to the other great powers, so the Hungarian elite could formulate its ambitious goals as a strengthening element of a weakening Empire.

Open Access: Yes

DOI: DOI not available

Parameter Determination and Drive Control Analysis of Axial Flux Permanent Magnet Synchronous Motors

Gergely Szabo Attila Nyitrai Sándor Horvath

Publication Name: Periodica Polytechnica Electrical Engineering and Computer Science

Publication Date: 2022-04-01

Volume: 66

Issue: 2

Page Range: 205-214

Description:

Axial flux electric motors have received a lot of attention in recent years due to successful implementations in industrial or traction applications. Particularly, axial flux permanent magnet synchronous motors (AFPMSM) can be an attractive choice in case of high torque-density requirements or when the drive environment (packaging) is geometrically limited to a disc-shaped motor. However, compared to radial flux motors, axial flux machine modeling possibilities are much less documented. In the present study, different electromagnetic modeling approaches have been compared through an example AFPMSM design. The motor parameters were determined by analytical and finite element methods. A 2D equivalent model (2D Linear Motor Modeling Approach - 2D-LMMA) and a 3D model results have been compared. The calculated values were used to carry out a drive control analysis of the axial flux motor.

Open Access: Yes

DOI: 10.3311/PPee.19714

The Circle Group Heuristic to Improve the Efficiency of the Discrete Bacterial Memetic Evolutionary Algorithm Applied for TSP, TRP, and TSPTW

Boldizsar Tuu-Szabo Ali Jawad Ibada László T. Kóczy

Publication Name: Symmetry

Publication Date: 2025-10-01

Volume: 17

Issue: 10

Page Range: Unknown

Description:

The quality of the initial population is a critical factor in the convergence speed and overall performance of an optimization algorithm. A well-structured initial population can significantly enhance the exploration capabilities of the algorithm, allowing it to more efficiently traverse the solution space and converge more quickly and reliably towards optimal or near-optimal solutions. In this paper, we present the Circle Group Heuristic (CGH), a spatially structured initialization method, for generating high-quality initial populations to enhance the convergence speed of the Discrete Bacterial Memetic Evolutionary Algorithm (DBMEA) in solving the Traveling Salesman Problem (TSP) and related combinatorial optimization problems. This work extends the CGH beyond the TSP to a broader class of routing problems. The results show that the integration of CGH into DBMEA demonstrated consistent performance improvements on the TSP, the Traveling Repairman Problem (TRP), and the Traveling Salesman Problem with Time Window (TSPTW) instances of varying sizes. In particular, CGH provided high-quality starting points that accelerated convergence and reduced computational cost. In all tested scenarios, DBMEA enhanced with CGH and consistently preserved the best-known solution quality while reducing execution time.

Open Access: Yes

DOI: 10.3390/sym17101683

A Comparative Evaluation of Classical and Deep Learning-Based Visual Odometry Methods for Autonomous Vehicle Navigation †

János Hollósi Armand Nagy

Publication Name: Engineering Proceedings

Publication Date: 2025-01-01

Volume: 113

Issue: 1

Page Range: Unknown

Description:

This study introduces a comprehensive benchmarking framework for evaluating visual odometry (VO) methods, combining classical, learning-based, and hybrid approaches. We assess 52 configurations—spanning 19 keypoint detectors, 21 descriptors, and 4 matchers—across two widely used benchmark datasets: KITTI and EuRoC. Six key trajectory metrics, including Absolute Trajectory Error (ATE) and Final Displacement Error (FDE), provide a detailed performance comparison under various environmental conditions, such as motion blur, occlusions, and dynamic lighting. Our results highlight the critical role of feature matchers, with the LightGlue–SIFT combination consistently outperforming others across both datasets. Additionally, learning-based matchers can be integrated with classical pipelines, improving robustness without requiring end-to-end training. Hybrid configurations combining classical detectors with learned components offer a balanced trade-off between accuracy, robustness, and computational efficiency, making them suitable for real-world applications in autonomous systems and robotics.

Open Access: Yes

DOI: 10.3390/engproc2025113016

Field Application of Austenitic Filler Metals for Repairing Rail Surface Defects in Paved Tracks

Szabolcs Fischer Mykola Sysyn Dmytro Kurhan Dóra Harangozó András Brautigam

Publication Name: Lecture Notes in Networks and Systems

Publication Date: 2025-01-01

Volume: 1258 LNNS

Issue: Unknown

Page Range: 87-95

Description:

Previous research by the authors identified a welding technology to repair rail defects in tramways with partial disassembly and partial preheating, with the following main advantages for the operator: the process can be carried out during operational downtime or even during traffic, disassembly, and repair costs are reduced, and traffic disruption is reduced compared to conventional hard surfacing welding technologies. After welding, the hardening under traffic should approach the vehicle wheels’ hardness values (310–350 HB). In the track measurements under investigation, welds were made on two different rail grades using austenitic weld metal with high elongation relative to the rails, which was also compared with welds made by conventional hard surfacing welding. The present study aims to determine the hardening function of austenitic dowel bars at different layer counts by performing continuous hardness measurements at the investigated sites. The hardening shows a power function at the initial stage and a linear trend after about 2.5 million MGT.

Open Access: Yes

DOI: 10.1007/978-3-031-81799-1_9