Search Everything

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

Publications - 6374

Outlines of a framework for progressive representation-bridging CogInfoCom channels

Adam Csapo

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

Publication Date: 2014-01-23

Volume: Unknown

Issue: Unknown

Page Range: 321-326

Description:

In the context of the development of engineering systems, communication is often interpreted as a behavior that is planned for and implemented a priori, with a concrete use case in mind. In contrast, the natural world follows different patterns: function emerges through evolution, and communication emerges through a process known as (signal) ritualization. Based on these differences, the concept of communication used in engineering would be worth broadening, in an effort to develop systems capable of exhibiting spontaneous communicative behaviors that evolve and develop into patterns through a history of interactions. In this paper, the concept of progressive CogInfoCom channels is proposed along with a generic framework for their implementation.

Open Access: Yes

DOI: 10.1109/CogInfoCom.2014.7020471

Exchange interaction between two quantum dots coupled through a superconducting island

Rok Žitko Ádám Bácsi Luka Pavešić

Publication Name: Physical Review B

Publication Date: 2023-09-15

Volume: 108

Issue: 11

Page Range: Unknown

Description:

We present a theoretical study of a system consisting of a superconducting island and two quantum dots, a possible platform for building qubits and Cooper pair splitters, in the regime where each dot hosts a single electron and, hence, carries a magnetic moment. We focus on the case where the dots are coupled to overlapping superconductor states and we study whether the spins are ferromagnetically or antiferromagnetically aligned. We show that if the total number of particles is even the spins align antiferromagnetically in the flatband limit, i.e., when the bandwidth of the superconductor is negligibly small, but they align ferromagnetically if the bandwidth is finite and above some value. If the total number of particles is odd, the alignment is ferromagnetic independently from the bandwidth. This implies that the results of the flatband limit are applicable only within a restricted parameter regime for realistic superconducting qubit systems and that some care is required in applying simplified models to devices such as Cooper pair splitters.

Open Access: Yes

DOI: 10.1103/PhysRevB.108.115160

The past, the present and the future of online road vehicle diagnosis from car and scan tool communication perspective

I. Lakatos Jozsef Nagy

Publication Name: Advances in Transdisciplinary Engineering

Publication Date: 2023-09-15

Volume: 39

Issue: Unknown

Page Range: 52-58

Description:

In the luxury vehicle class, online internet connection has become a standard feature in the recent years. This process is likely to spread completely in all vehicle categories in the coming years. In the past, computer supported vehicle diagnostics started with On-Board Diagnostic (OBD) I standard in the late 1960's. This has been followed by OBD II in 1996, which allows a fully standardization regardless of vehicle manufacturer and models, based on a generic scan tool. Even its communication with the vehicle electronic architecture has been developed rapidly followed by the new technologies. This way of car analysis has been extended also for non-emission related functions. Online data collecting and analysis provides not only solutions in the car production and service but in its development process too. For example, it can help you to set realistic thresholds by defining an OBD strategy for many in-car systems and functions to avoid customer complaints, warranty costs and recalls afterwards. From predictive maintenance / repair perspective it is possible to monitor material properties, vibrations, damages potentials also in processes e.g. welding and soldering. The dynamic development of telecommunication and automotive technologies hand in hand will provide completely new ways for 'car to diagnostics back end' communication in the future without using a scan tool device and its physical in-vehicle interface.

Open Access: Yes

DOI: 10.3233/ATDE230419

Numerical algorithm of fourth-grade nanofluid flow with heat transfer consists of aluminum alloys over a riga plate

M. M. Mosallem H. I. Elsaeedy Hijaz Ahmad Asif Ullah Hayat Hassan Ali Ghazwani

Publication Name: Journal of Thermal Analysis and Calorimetry

Publication Date: 2025-10-01

Volume: 150

Issue: 19

Page Range: 15723-15736

Description:

The MHD (magnetohydrodynamic) fourth-grade nanofluid flow consisting of aluminum alloys (Ti6Al4V) nanoparticles over a Riga plate is studied. The study of fourth-grade fluids (FGFs) improves the capacity to design systems and procedures for a variety of industries, ultimately promoting performance and the durability of the product. Ti6Al4V nanoparticles (NPs) are dissolved in water to prepare the nanofluid. The FGF flow has been analyzed under the impacts of Arrhenius activation energy, heat source/sink, and chemical reaction. The modeled equations (momentum, energy, and fluid concentration equations) are reformed into dimension-free form through similarity conversion. The transform set of ordinary differential equations (ODEs) is numerically solved by using the parametric continuation method (PCM). For accuracy of the results, the outcomes are compared to the published work. The error between the present results and the published study is -0.00028% at M = 5.0 (magnetic parameter), which ensures that the proposed methodology and model are accurate and reliable. From the graphic results, it has been noticed that the velocity field improves with the influence of fourth-grade fluid parameter, cross-viscous coefficient, and third-grade fluid parameter. The thermal profile of NF boosts with the variation in heat source parameters and the rising number of Ti6Al4V-NPs.

Open Access: Yes

DOI: 10.1007/s10973-025-14713-8

Genome-Wide Association Study of Exercise Addiction Among Elite Wrestlers

Ildus I. Ahmetov Seyrani Koncagul Mehmet A. Ergun Hasan H. Kazan Celal Bulgay Anıl Kasakolu Mark D. Griffiths Türker Bıyıklı Mark D. Griffiths Attila Szabo

Publication Name: Brain Sciences

Publication Date: 2025-02-01

Volume: 15

Issue: 2

Page Range: Unknown

Description:

Background: Exercise addiction, marked by an inability to control exercise and associated with distress that clinically impairs daily activities, is a significant but underrecognized issue in physical activity and health. While its physiological, psychological, and behavioral aspects have been studied, the genetic basis of exercise addiction remains poorly understood, requiring further investigation. The present study conducted a genome-wide association study of exercise addiction among elite Turkish wrestlers. Methods: The sample comprised 67 male wrestlers (34 freestyle wrestlers and 33 Greco-Roman wrestlers). Exercise addiction was assessed using the Exercise Addiction Scale. Whole-genome genotyping was performed using DNA microarray. Results: Using a genome-wide approach (p < 1.0 × 10−⁵), we identified six suggestively significant single-nucleotide polymorphisms (SNPs) associated with exercise addiction status. Of these, the high-addiction alleles of five SNPs (PRDM10 rs74345126, near PTPRU rs72652685, HADHB rs6745226, XIRP2 rs17614860, and near GAREM2 rs1025542) have previously been associated with an increased risk of mental health disorders such as anxiety and depression or higher levels of physical activity. We also examined potential associations between the genetic markers previously linked to addiction-related traits such as obsessive–compulsive disorder and cigarette smoking, and personality traits linked to negative emotions including neuroticism. Using this candidate gene approach (p < 0.05), we identified three additional SNPs associated with exercise addiction in the same direction of association (DEFB135 rs4841662, BCL11A rs7599488, and CSRNP3 rs1551336). Conclusions: The present study provides preliminary evidence for the genetic basis of exercise addiction, highlighting specific SNPs that may play a role in the development of this condition among elite wrestlers.

Open Access: Yes

DOI: 10.3390/brainsci15020102

Chinese foreign direct investments in hungary from the perspective of BRI, international capacity cooperation, and made in China 2025

Eszter Lukács Katalin Völgyi

Publication Name: Contemporary Chinese Political Economy and Strategic Relations

Publication Date: 2021-04-01

Volume: 7

Issue: 1

Page Range: 413-446

Description:

This study analyses Chinese investments in Hungary from the perspective of three initiatives (Belt and Road Initiative, International Cooperation in Industrial Capacity and Equipment, and Made in China 2025) which are in line with China's "Go global" strategy and among other things aimed at promoting the spread of Chinese companies and products abroad. The findings show a vivid cooperation between China and Hungary in automotive, ICT, renewable energy, chemical, transportation/logistics and banking sector through the three abovementioned initiatives.

Open Access: Yes

DOI: DOI not available

Tracing knowledge diffusion trajectories in the research field of cyberbullying

Edit Süle Imen Zrelli Abderahman Rejeb Karim Rejeb

Publication Name: Heliyon

Publication Date: 2025-01-15

Volume: 11

Issue: 1

Page Range: Unknown

Description:

In today's digital age, cyberbullying has emerged as a pervasive issue that affects individuals across various social media platforms and digital communication channels. This review explores the developmental trajectory of cyberbullying as an interdisciplinary academic field, employing a unique combination of co-word analysis and main path analysis (MPA) across a substantial body of 5183 documents. This integrated methodological approach allows for a nuanced examination of the evolution of themes and influential works within the realm of cyberbullying research. The findings highlight a complex landscape where initial focus areas, such as the behavioral and psychological triggers of cyberbullying, progressively expand towards exploring effective preventive measures and intervention strategies. Key themes identified include the impact of digital literacy, the dual role of social media as both a vector and a tool against cyberbullying, and the potential of technological advancements in detecting and mitigating cyberbullying. This comprehensive mapping and analysis deepens our understanding of cyberbullying and highlights the dynamic nature of this field, suggesting new directions for future research and practical applications to effectively address cyberbullying across various social and technological contexts. This study represents a pioneering effort in synthesizing a broad spectrum of research to offer detailed insights into the changing dynamics of cyberbullying, marking a significant contribution to both academic knowledge and practical approaches to handling cyberbullying.

Open Access: Yes

DOI: 10.1016/j.heliyon.2024.e41141

Tensor-based Format for Exchanging Hypergraphs between Cognitive Entities

Adam Csapo Csaba Hajdu

Publication Name: 2022 IEEE 1st International Conference on Internet of Digital Reality Iod 2022

Publication Date: 2022-01-01

Volume: Unknown

Issue: Unknown

Page Range: 33-38

Description:

Robotic and other intelligent systems have recently gained prominence, integrating a growing number of new functionalities. Since the beginning, the flexible semantic self-recognition of intelligent devices has been a challenge. The traditional solution is to provide a centralized source of semantic descriptions (in parameter servers or external sources). This paper introduces a graph-like binary format for machine-to-machine information exchange to efficiently index and process graph-based data at each endpoint. The exchanged graphs, which are represented as multidimensional tensors, are based on the formal theory of hypergraphs, allowing for the description of associations between not just two, but multiple modalities. We show in addition that hierarchical information is also compatible with this hypergraph-based formalism. Thus, structured information can be shared between intelligent entities, using the proposed format, to share information for reasoning, planning (e.g., motion planning in robotics), as well as environment representation. A further motivation includes the description of vision data by providing semantic information that can be rewritten in interpretable form for the target visualization engine.

Open Access: Yes

DOI: 10.1109/IoD55468.2022.9986845

Characterization of fatty acid, antioxidant, and polyphenol content of grape seed oil from different Vitis vinifera L. varieties

E. Lakatos V. Kapcsándi Székelyhidi Rita Beatrix Sik László Ádám Linka

Publication Name: OCL Oilseeds and Fats Crops and Lipids

Publication Date: 2021-01-01

Volume: 28

Issue: Unknown

Page Range: Unknown

Description:

In this study, we examined the yield and oil quality of eight different grape varieties. For the experiments, the grape seeds were obtained from the Benedictine Pannonhalma Archabbey in the northwestern region of Hungary. The aim of the studies was to determine the oil yield obtained by extraction and to examine the differences between the fatty acid composition, antioxidant capacity, and total polyphenol content of the oils of different grape varieties. Based on the results, the oil content of the grape seeds varied between 99.91 g/kg and 126.74 g/kg. The grape seed oils analysed contained significant amounts of stearic acid (3.42-9.93%), palmitic acid (7.81-10.66%), oleic acid (14.29-19.92%), and linoleic acid (66.85-72.47%). Besides, the grape seed oils tested contained several other fatty acids in small amounts. There were significant differences in the total antioxidant and total polyphenol content of the oils. Total polyphenol content ranged from 0.24 to 1.13 mg GAE/g, while the total antioxidant content changed between 0.12 and 0.78 μg TEAC/g. The results show that the studied varieties are suitable for the production of table grape seed oil based on their oil yield, and the oils have favourable, health-protecting properties in terms of their quality.

Open Access: Yes

DOI: 10.1051/ocl/2021017