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Publications - 6374

Construction 4.0 organisational level challenges and solutions

Ilona Papp Roland Zsolt Szabó Orsolya Nagy

Publication Name: Sustainability Switzerland

Publication Date: 2021-11-01

Volume: 13

Issue: 21

Page Range: Unknown

Description:

The construction industry (CI) is ancient and has evolved along with humanity, yet it has become increasingly inefficient due to fragmentation, the use of traditional solutions and the lack of innovative technologies and methodologies which are no longer sustainable. The Fourth Industrial Revolution has started to transform this industry, and Construction 4.0 (C4) can advocate this change to become a more efficient cyber-physical ecosystem. However, technology alone will not solve all challenges. While research on C4 focuses mainly on technology, management also plays a key role. We asked experienced company executives for their opinions on the digital transformation in the CI. Research proves that it is not just a technology but primarily a management and strategic challenge.

Open Access: Yes

DOI: 10.3390/su132112321

Biologia Futura: potential of different forms of microalgae for soil improvement

Zoltán Molnár Tibor Janda Lamnganbi Mutum Vince Ördög

Publication Name: Biologia Futura

Publication Date: 2022-03-01

Volume: 73

Issue: 1

Page Range: Unknown

Description:

Products derived from microalgae have great potential in diverse field. As a part of the enhancing agriculture application, various forms of microalgae applications have been developed so far. They are known to influence soil properties. The various forms of application may enhance soil in more or less similar manner. They can help improve soil health, nitrogen, and phosphorus content, and even carbon sequestration. Thus, overall, it can enhance fertility of the soil.

Open Access: Yes

DOI: 10.1007/s42977-021-00103-2

Benefit evaluation model for gamified add-ons in business software

Ferenc Erdos Gábor Kallos

Publication Name: Acta Polytechnica Hungarica

Publication Date: 2014-01-01

Volume: 11

Issue: 5

Page Range: 109-124

Description:

Return on IT investment analysis has become a fundamental task of the finance function at corporations, let it be large multinational organizations or small and medium businesses (SME). Besides the cost analysis, the benefit analysis is also an essential component of economic calculations and decisions. Due to complicated profit calculations and estimation methods, the benefit of IT investments is less easily forecast and hence less frequently calculated than their costs. This study focuses on a special innovative type of IT investments, the gamified extensions of business software. Gamification, which refers to the use of game design elements in a non-gaming context, can expect big development in the field of business applications in the near future. Gamification features of business software generally enhance user experience, enabling people to do otherwise boring tasks. In the following we attempt to propose a sophisticated benefit evaluation model based on the hedonic wage model (HWM) and technology acceptance model (TAM) for this special type of IT projects.

Open Access: Yes

DOI: DOI not available

Opportunities and Solutions for Developing Core Skills and STEM Competencies in Higher Education

Beata Orosz Eniko Nagy Karl Eva Gyorgy Molnar

Publication Name: Lecture Notes in Networks and Systems

Publication Date: 2026-01-01

Volume: 1849 LNNS

Issue: Unknown

Page Range: 245-255

Description:

The presence of artificial intelligence (AI) and machine learning (ML) in higher education is no longer merely a technological novelty. It is increasingly becoming an issue of educational organisation and pedagogy. Functions such as designing adaptive learning pathways, predicting student performance, and providing automated feedback can enhance the efficiency of instruction and support students’ personal development. AI-based systems such as chatbots, automated assessment platforms, or intelligent tutoring applications can analyse learner data in real-time, offering tailored support to instructors and students. This becomes especially valuable when the goal is not only the transmission of knowledge but also its deeper understanding and long-term retention. At the same time, technology is not a cure-all. The use of intelligent systems raises several new challenges, including concerns about data protection, technical flexibility, and the redefinition of the teacher-student relationship. Drawing on insights from the WTCAi research, this paper presents development directions to ensure AI systems do not function as isolated educational units but as integrated solutions that align with existing curricula [9, 10]. In this context, artificial intelligence appears as a tool and a new educational perspective. It supports a learning culture that places student autonomy, personalised learning, and pedagogical flexibility at its centre.

Open Access: Yes

DOI: 10.1007/978-3-032-18891-5_21

Examination of formability of cast aluminium alloy

Erno Halbritter Ágnes Csizmazia

Publication Name: Materials Science Forum

Publication Date: 2003-01-01

Volume: 414-415

Issue: Unknown

Page Range: 15-20

Description:

Ring upsetting has been used to upset AlSi9Cu3 cast alloy in order to examine formability as well as the effect of deformation. Maier scalar quantity, which characterises the stress state, has been calculated. It is concluded that, from the point of view of maximum deformation, ring upsetting tests are more advantageous than simple upsetting tests.

Open Access: Yes

DOI: 10.4028/www.scientific.net/msf.414-415.15

Traffic Sign Detection Related to Weather Variations

Csaba Koren Ziyad N. Aldoski

Publication Name: Lecture Notes in Networks and Systems

Publication Date: 2026-01-01

Volume: 1768 LNNS

Issue: Unknown

Page Range: 190-196

Description:

Environmental variability poses a significant challenge to the reliability of vision-based perception systems in autonomous vehicles (AVs), particularly in the context of traffic sign detection. This study evaluates the performance of the YOLOv8 deep learning model under clear, rainy, and snowy conditions. Real-world video data captured in clear weather was augmented using simulation techniques to replicate realistic rain and snow effects, including precipitation, motion blur, lens distortion, and reduced visibility. Detection performance was assessed using detection rate, sharpness, mean saturation, and intensity. Results show a marked decline in accuracy under adverse conditions, with snow causing further issues like occlusion, reduced contrast, and altered reflectivity. Additionally, detection resilience varied among sign classes; high-contrast signs with distinct geometric shapes were detected more reliably than those with fine details or low color contrast. These findings highlight the critical need for robust perception algorithms and the advancement of AV vision systems capable of maintaining accuracy across challenging environmental conditions.

Open Access: Yes

DOI: 10.1007/978-3-032-13898-9_21

Measurement and analysis of vibration levels in stacked small package shipments in delivery vans as a function of free movement space

Péter Böröcz Bence Molnar

Publication Name: Applied Sciences Switzerland

Publication Date: 2020-11-01

Volume: 10

Issue: 21

Page Range: 1-13

Description:

In recent years there has been a very significant increase in parcel delivery shipments all over the world. Moreover, this mode of delivery, in some cases, is facing a very intensive flow of goods, such as in annual festive seasons or, for instance, in situations like COVID-19 when personal purchase of goods is strictly limited in malls. This often means that delivery vehicles operate at almost full capacity, and many same or different kinds of packages are therefore stacked in small delivery vehicles. In this study, we measured and analyzed the vibration levels that occur in smaller stacks of packages in parcel delivery shipments, paying particular attention to those circumstances such as stacking layers and free movement spaces that can affect the vibration in different layers of packages. The goal of this paper was to provide information about the vibration levels that occur in smaller stacks of packages that are not unitized and fixed, as is common in parcel transportation. The recorded vibration events were analyzed in terms of power spectral densities (PSDs) and supplied with statistical data of acceleration events to provide an understanding of the variability of intensity. Based on the results of this study, PSD spectra were developed for various free movement conditions, as well as spectra for each layer in the stacked parcel package shipment. The results showed that the vibration level increases in the stacked load upwards and with an increase of free space of possible movement. The results of this study can be used to simulate the measured vibration conditions in laboratory tests conducted on courier express parcel shipments.

Open Access: Yes

DOI: 10.3390/app10217821

At the Borderline of Public and Private Law: The Restitution of Cultural Property Held in Public Collections in Hungary

Vanda Vadász Viktória Verebélyi

Publication Name: Santander Art and Culture Law Review

Publication Date: 2024-01-01

Volume: 2024

Issue: 2

Page Range: 181-208

Description:

During the Second World War, and thereafter until the end of the communist regime in 1989, a massive amount of private-ly owned works of art came into the possession of the Hungarian state. The ownership of the property thus collected was only par-tially clarified after the war. After the fall of communism, national-ized cultural property was subject to restitution laws, but restitution typically meant partial compensation. The aim of this article is to highlight the shortcomings that still characterize the restitution of cultural property held in public collections in Hungary. After summa-rizing the historical-legal situation pertaining to restitution measures in Central and Eastern Europe, we provide a comprehensive overview of the Hungarian legal environment in terms of restitution. The focus is on the restitution rules adopted in the 2010s that were intended to settle the possession of cultural property held in public collections. The roots of constitutional issues related to the regulation arise from and are reflected in the intermingling of private law and public law characteristics and guarantees. In the presentation of civil law disputes concerning the ownership rights of property held in public collections, we outline the characteristics of the Hungarian regula-tory framework regarding protected cultural property and the issues arising from their application. Finally, we provide an overview of the European Court of Human Rights’ jurisprudence on the protection of property rights and an assessment of Hungarian regulations before the Court. We claim that the lack of predictability and certainty of the latter authority’s proceedings may lead to human rights issues.

Open Access: Yes

DOI: 10.4467/2450050XSNR.24.017.20828

Why are the participation rates in lifelong learning so low in Hungary?

Péter Róbert Saida Ayupova Szilvia Altorjai

Publication Name: Lifelong Learning in Europe National Patterns and Challenges

Publication Date: 2013-01-01

Volume: Unknown

Issue: Unknown

Page Range: 280-303

Description:

No description provided

Open Access: Yes

DOI: 10.4337/9780857937360.00020