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Found 6412 publications

Effects of Crumb Rubber-Modified Asphalt as a Pavement Layer in Railways: A Scoping Review

Szabolcs Fischer Amir Hajimirzajan Milad Kazemian Ebrahim Hadizadeh Raeisi Ahmad Davari Ghezelhesar

Publication Name: Infrastructures

Publication Date: 2025-04-01

Volume: 10

Issue: 4

Page Range: Unknown

Description:

Railway track performance and durability face growing challenges from higher speeds, heavier axle loads, and changing environmental conditions. Crumb rubber-modified asphalt (CRMA) offers a sustainable solution by repurposing waste tires into a durable material for railway trackbeds, improving both performance and environmental impact. Following PRISMA-ScR guidelines, this scoping review synthesizes an extensive body of global research on the structural, mechanical, and environmental benefits of CRMA in railway trackbeds. A systematic literature search was conducted across major academic databases, covering studies published over several decades. Selection criteria focused on CRMA applications in railway trackbeds, using keywords such as “crumb rubber-modified asphalt”, “railway track vibration”, and “sustainable railway materials.” After rigorous screening and eligibility assessment, the most relevant peer-reviewed studies were included, emphasizing mechanical performance, durability, and environmental impact. Key findings indicate that CRMA effectively reduces ground vibrations, enhances load distribution, and lowers long-term maintenance costs while promoting sustainable waste management through tire recycling. However, challenges such as optimal mix design, potential emissions, and long-term bonding stability require further investigation. Additionally, the review was limited to English-language studies, potentially omitting relevant non-English research, and some reports were inaccessible during retrieval. This review maps critical research gaps, identifies key areas for future optimization, and highlights CRMA’s potential to advance resilient and eco-friendly railway infrastructure.

Open Access: Yes

DOI: 10.3390/infrastructures10040084

Fuzzy Situational Maps: A new approach in mobile robot cooperation

Claudiu Radu Pozna Áron Ballagi Péter Földesi Laszlo T. Koczy

Publication Name: Ines 2013 IEEE 17th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2013-12-12

Volume: Unknown

Issue: Unknown

Page Range: 287-292

Description:

Intelligent robot cooperation tasks have very complex decision-making and computational processes. Collecting and calculating with a high amount of data is one of the weakest point of such system. In addition all of these it is necessary to process in real-time with limited computational capacity. In this paper we propose some novel algorithms for coping with these problems and give some information about the Fuzzy Situational Maps as a special case of the Fuzzy Signatures. An example takes to the field of warehouse logistics, managing and arranging boxes will be presented. © 2013 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2013.6632828

Cultural metaphors and schemata in the representation of river in Hungarian folk songs Part 2

Judit Baranyiné Kóczy

Publication Name: Magyar Nyelv

Publication Date: 2018-01-01

Volume: 114

Issue: 3

Page Range: 320-329

Description:

The aim of this paper is to disentangle the conceptual net lurking behind the appearance of rivers in the context of love in Hungarian folk songs. The theoretical framework of the paper is given by Cultural Linguistics, a branch of cognitive linguistics studying interrelationships of language, culture, and conceptualization. A corpus study of folk songs suggests that one of the main sources of the representation of human feelings is people’s experience of nature, implemented in metaphors concerning the natural environment. It can be stated on the basis of the folk songs studied here that metaphoric reference to rivers can be traced back to the conceptual metaphor eMotionS are watercourSeS appearing in a number of specific metaphors and image schemas deeply rooted in cultural experiences. The representational structure of folk songs is organised by an overall cultural schema, cHaStity, emerging from village dwellers’ strict moral norms. The study shows that natural scenes of folk songs are associated with conceptual metaphors, in particular, emotion-metaphors, but a genuine (and full) explanation can only be given in terms of the notion of love as entertained by traditional Hungarian communities and the related socio-cultural norms and moral principles of those communities.

Open Access: Yes

DOI: 10.18349/MagyarNyelv.2018.3.320

Discrete bacterial memetic evolutionary algorithm for the time dependent traveling salesman problem

Péter Földesi Boldizsár Tüu-Szabó Laszlo T. Koczy

Publication Name: Communications in Computer and Information Science

Publication Date: 2018-01-01

Volume: 853

Issue: Unknown

Page Range: 523-533

Description:

The Time Dependent Traveling Salesman Problem (TDTSP) that is addressed in this paper is a variant of the well-known Traveling Salesman Problem. In this problem the distances between nodes vary in time (are longer in rush hours in the city centre), Our Discrete Bacterial Evolutionary Algorithm (DBMEA) was tested on benchmark problems (on bier127 and on a self-generated problem with 250 nodes) with various jam factors. The results demonstrate the effectiveness of the algorithm.

Open Access: Yes

DOI: 10.1007/978-3-319-91473-2_45

Complex Test Scenarios for Functional Validation Prior to Type Approval

Balint Toth Leticia Pekk

Publication Name: Future Transportation

Publication Date: 2026-02-01

Volume: 6

Issue: 1

Page Range: Unknown

Description:

The continuous tightening of European regulatory requirements, particularly under the General Safety Regulation (GSR), has considerably increased the scope and cost of proving ground testing required for the validation of Advanced Driver Assistance Systems (ADASs) and Automated Driving Systems (ADSs). This study presents a methodology for constructing complex proving ground test scenarios aimed at supporting early-stage functional validation and cost-efficient preparation for type approval. The method is based on the systematic analysis of proving ground–relevant ADAS regulations and the classification of test case variations according to sensing, actuation, and execution complexity. By filtering and combining representative test cases, minimum and maximum complexity scenarios were developed and evaluated on the ZalaZONE proving ground in Hungary. The results demonstrate that the proposed approach can substantially reduce test duration, facility occupancy, and overall validation costs, while maintaining the representativeness and credibility of results. Beyond cost savings, the methodology offers a scalable and practical framework for physical validation, supporting manufacturers in achieving regulatory compliance with reduced time and expenditure.

Open Access: Yes

DOI: 10.3390/futuretransp6010001

Brain Structural Abnormalities in Patients with Post-COVID-19 Headache

Gergely Orsi József Tollár Klaudia Széphelyi Szilvia Kóra

Publication Name: Neurology International

Publication Date: 2025-04-01

Volume: 17

Issue: 4

Page Range: Unknown

Description:

Background/Objectives: Headache is one of the most common neurological symptoms associated with COVID-19, affecting approximately 25% of patients. While most headaches resolve within weeks, some persist for months, suggesting underlying structural brain changes. This study aimed to identify brain MRI abnormalities associated with chronic headaches in patients with a history of COVID-19 infection. Methods: This retrospective study included 30 patients with post-COVID-19 headaches and 30 control patients with no history of COVID-19. Demographic characteristics were analyzed using t-tests and chi-square tests. MRI findings were categorized into six types: cortical atrophy, white matter lesions, vascular lesions, lacunar lesions, vascular encephalopathy, and sinusitis. Differences in MRI findings between the two groups were evaluated using chi-square tests. Secondary outcomes included the analysis of symptoms accompanying headaches, diagnoses following MRI, and treatments applied. Results: White matter lesions were significantly more frequent in the post-COVID-19 group (50%) compared to controls (20%) (p = 0.015). Conversely, sinusitis was more prevalent in the control group (36.7%) than in the post-COVID-19 group (6.7%) (p = 0.005). Other MRI abnormalities showed no significant differences. Cognitive dysfunction (30%) and dizziness (33.3%) were the most common associated symptoms. The most frequent diagnoses after MRI in the post-COVID-19 group were headaches/migraines (23.3%), post-COVID-19 headache (20%), and vestibular syndrome (13.3%). Conclusions: Persistent post-COVID-19 headaches may be linked to structural white matter changes observed in MRI. Further research, ideally including pre-infection imaging data, is needed to determine the causal relationship between these lesions and chronic headache symptoms. Trial Registration: This study was registered in ClinicalTrials with the trial registration number NCT06825741 on 13 February 2025.

Open Access: Yes

DOI: 10.3390/neurolint17040050

There is no plan(et) B - environmental “crossroads’ of children’s rights”

Gábor Kecskés L. U.X. Ágnes

Publication Name: Hungarian Journal of Legal Studies

Publication Date: 2023-12-14

Volume: 64

Issue: 1

Page Range: 4-31

Description:

It is an obvious statement that children are disproportionately affected by changes in their environment, due to their incomplete maturity, evolving capacities, vulnerabilities derived from their age and special developmental needs. Changes in temperature, air and water quality, and access to proper nutrition are likely to have more severe and long-term impacts on children’s health, development and well-being, since they basically determine the enjoyment of the right of the child to a healthy environment. The impacts of climate change clearly undermine the effective enjoyment of the rights enshrined in the UN Convention on the Rights of the Child (hereinafter: UN CRC) and its Optional Protocols, including the rights to life, survival and development (art. 6), to family relations and the right not to be separated from one’s parents against one’s will (arts. 9–10), the highest attainable standard of health (art. 24), an adequate standard of living (art. 27), education (art. 28), freedom from any form of violence or exploitation (arts. 19, 32 and 34–36), the right to recreation and play (art. 31) and the enjoyment of one’s culture (art. 30). The climate crisis has been declared as child rights crisis, although children bear the least responsibility for it. The UN Committee on the Rights of the Child has clearly identified climate change as one of the biggest threats to children’s health and has urged States Parties to put children’s health concerns at the centre of their climate change adaptation and mitigation strategies.1 Despite data and research explicitly

Open Access: Yes

DOI: 10.1556/2052.2023.00440

Old railways, new borders. The impact of treaty of Trianon on Western Transdanubia network (1918–1924)

Csaba Sándor Horváth

Publication Name: Journal of Transport History

Publication Date: 2023-12-01

Volume: 44

Issue: 3

Page Range: 457-482

Description:

The Great War and Trianon opened a new chapter in the history, not only of the Kingdom of Hungary, but also of Western Hungary. Besides dividing up the counties of Sopron, Moson and Vas, the newly re-drawn borders also split up most of the railway lines running within them as well. From the territory sliced from the three counties, the previously non-existent province of Austria, Burgenland, was established in 1922. In many cases, the new demarcation lines followed boundaries of old districts or settlements, but it was rare to find natural boundaries among them. As a result, between the two World Wars, the use of the affected railway tracks began to change similar to several contemporary Central European cases, with the exception of GYSEV (Győr–Sopron–Ebenfurth Railway Company), which could remain in its original form. This research paper aims to examine how the shift of borders in this region affected railway transport. It is based on the local historical literature on the railway, regional history and primary resources.

Open Access: Yes

DOI: 10.1177/00225266231185547

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