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Found 6414 publications

Electric Vehicles and Environmental Attitudes: The Social Dimensions of Sustainable Mobility

Boglárka Eisingerné Balassa Boglárka Eisinger Balassa Réka Koteczhi

Publication Name: International Scientific Business Conference Limen Leadership Innovation Management and Economics Integrated Politics of Research

Publication Date: 2024-01-01

Volume: 2024

Issue: Unknown

Page Range: 709-719

Description:

The widespread uptake of electric vehicles (EVs) is key to reducing emissions and achieving sustainable development goals. However, the acceptance of EVs depends not only on technological progress but also on consumers' environmental attitudes. The aim of this study was to investigate the role of these attitudes through a regionally representative survey of a sample of 500 people in a Central Eastern European country. The questionnaire was used to measure consumers' attitudes towards environment, acceptance of EVs and the availability of charging infrastructure. K-means cluster analysis was used to identify four clusters. Following the purchase intention of each cluster for EVs and the influence of charging stations location were analysed. Results showed that respondents with positive environmental attitudes were significantly more likely to plan to purchase an EV. These results underline the need not only for infrastructure development but also for initiatives to promote environmentally conscious attitudes in order to accelerate the uptake of EVs.

Open Access: Yes

DOI: 10.31410/LIMEN.2024.709

Effects of Feasibility Constraints on Optimisation of a Synchronous Reluctance Machine

Mihaly Katona Tamas Orosz

Publication Name: Lecture Notes in Networks and Systems

Publication Date: 2026-01-01

Volume: 1768 LNNS

Issue: Unknown

Page Range: 16-25

Description:

The optimisation of synchronous reluctance rotor topologies using the NSGA-II algorithm has been proven to be an effective method for calculating optimal solutions for various applications. However, increasing the number of design variables defines a vast design space, which necessitates constraints. These constraints reduce the number of possibilities and ensure feasibility; however, it could lead to Pareto-front fragmentation. The previous investigation of the presented machine design’s Pareto front identified such fragmentation. This paper investigates four different optimisation rounds of the same electric machine using the NSGA-II method to check for the cause of fragmentation. While Pareto front fragmentation is not widely covered in the literature for electric machines, this paper focuses on geometric feasibility-induced Pareto front fragmentation, which is solved by implementing a coupled constraint repair operator. The results show that by extending the design variable ranges and rewriting the feasibility constraints, not only can the fragmentation be repaired, but the average torque range of the Pareto front also improved from 779.76 mNm - 1823.83 mNm to 1046.48 mNm - 2149.129 mNm, while the torque ripple range reduced from 22.22% - 65.62% to 7.23% - 48.81%.

Open Access: Yes

DOI: 10.1007/978-3-032-13898-9_2

In the footsteps of Artificial Intelligence : EExamining logical relationships between employee turnover and behavior patterns

Bernadett Domokos Zoltán Baracskai

Publication Name: 11th IEEE International Conference on Cognitive Infocommunications Coginfocom 2020 Proceedings

Publication Date: 2020-09-23

Volume: Unknown

Issue: Unknown

Page Range: 569-572

Description:

In this study, the initial problem is the capacity of the human mind to set up a conceptual model. The novelty of this article is that we show that defined concepts created by the human mind can be passed on to an artificial intelligence-based expert system. The expert system helps the human mind to settle the logical connections between the defined terms and the conceptual model thus the created model will be better than what man could have set up without an expert system. These articles have examined the impact of employee turnover in countless aspects as one of potential index of a corporation. As a starting point for our research, we systematically reviewed the literature on employee turnover and selected six concepts that are bilaterally related to our phenomenon. Based on the terms and the correlation of it, we created a conceptual model that was examined with the help of an artificial intelligence-based system. Based on our experience in observing, consulting, and working with decision-makers, we examined the aspects of employee turnover phenomenon in the analysis. This was performed using a rule-based system, which used logical rules and found classical 'if-then' connections in the employee behavior cases. According to our examination, our outcomes can provide credible results for further research activities as well as for practitioners.

Open Access: Yes

DOI: 10.1109/CogInfoCom50765.2020.9237862

The Role of Micronutrients to Support Immunity for COVID-19 Prevention

Mukhtar H. Ahmed Judit Molnár Arez Hassan

Publication Name: Revista Brasileira De Farmacognosia

Publication Date: 2021-08-01

Volume: 31

Issue: 4

Page Range: 361-374

Description:

The World Health Organization declared the novel coronavirus, named as SARS-CoV-2, as a global pandemic in early 2020 after the disease spread to more than 180 countries leading to tens of thousands of cases and many deaths within a couple of months. Consequently, this paper aims to summarize the evidence for the relationships between nutrition and the boosting of the immune system in the fight against the disease caused by SARS-CoV-2. This review, in particular, assesses the impact of vitamin and mineral supplements on the body’s defence mechanisms against SARS-CoV-2. The results revealed that there is a strong relationship between the ingestion of biological ingredients like vitamins C–E, and minerals such as zinc, and a reduction in the effects of coronavirus infection. These can be received from either nutrition rich food sources or from vitamin supplements. Furthermore, these macromolecules might have roles to play in boosting the immune response, in the healing process and the recovery time. Hence, we recommend that eating healthy foods rich in vitamins C–E with zinc and flavonoids could boost the immune system and consequently protect the body from serious infections. Graphical Abstract: [Figure not available: see fulltext.].

Open Access: Yes

DOI: 10.1007/s43450-021-00179-w

Genotyping of four loci in Hungarian yellow and broiler chickens

Károly Tempfli Klaudia Szalai Erika Lencsés-Varga Ágnes Bali Papp

Publication Name: Acta Veterinaria Hungarica

Publication Date: 2019-01-01

Volume: 67

Issue: 1

Page Range: 1-10

Description:

Traditional selection has led to remarkable differences in allele frequencies among various chicken breeds. Indigenous and broiler-type chicken populations were genotyped for polymorphisms in thyroid hormone responsive Spot14α, prolactin (PRL), IGF-binding protein 2 (IGFBP2), and somatostatin (SST) genes in order to determine potential utilisation type-associated allele frequencies. Significant (P < 0.05) differences were detected between Hungarian Yellow and broiler populations for Spot14α, PRL, and IGFBP2 allele frequencies, whereas the same SST allele (A) was fixed in both groups. In this study, the most significant associations (P < 0.05) were found between the IGFBP2 genotypes and the measured traits (body weight, carcass weight, breast muscle weight with or without skin, breast muscle weight as a percentage of carcass weight) in the broiler population. The results can be applied for the evaluation of polymorphism effects in the analysed populations; however, contradictory allele effects in different breeds and hybrids indicate the need for cautious marker utilisation in selection programmes.

Open Access: Yes

DOI: 10.1556/004.2019.001

Special Issue on CogInfoCom-Supported Approaches, Models and Solutions in Surface Transportation

Attila Borsos Salvatore Cafiso Marian Tracz Peter Baranyi

Publication Name: Intelligent Decision Technologies

Publication Date: 2017-01-01

Volume: 11

Issue: 4

Page Range: 415

Description:

No description provided

Open Access: Yes

DOI: 10.3233/IDT-170311

Application of the walkability index in Hungarian small towns

Emese Makó Viktória Hideg

Publication Name: Pollack Periodica

Publication Date: 2026-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

AbstractThe assessment of walkability is essential for sustainable mobility and livable urban environments. This study explores the applicability of a walkability index - originally developed for a metropolitan context-to small towns in Hungary and identifies necessary adaptations. Data were collected through an expert survey on the prioritization and weighting of walkability factors. Weighting was determined using two methods: pairwise comparison and 100-point distribution, followed by linear normalization. Statistical analyses revealed that sense of safety and transport accessibility is more significant in small towns, while other factors, for example the attractiveness of the environment, are less emphasized. The findings support settlement-specific weighting of walkability criteria to address local needs.

Open Access: Yes

DOI: 10.1556/606.2026.01476

Development of tire-road noise measuring system

Balázs Vehovszky István Horváth Zsolt Gaszner

Publication Name: Advances in Acoustics Noise and Vibration 2021 Proceedings of the 27th International Congress on Sound and Vibration Icsv 2021

Publication Date: 2021-01-01

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

In vehicles there are 3 main noise sources: powertrain noise (e.g. engine, gear engagement or exhaust noise), aerodynamic noise (or wind noise), and the noise from the tire-road contact. The first two are traditionally in the primary focus of vehicle manufacturers, however, due to both the already made powerful developments and the spreading of electric vehicles, the rolling noise is gaining more and more attention during the vehicle development process. There are two major influencing factors of this noise source: tire (geometrical and material) characteristics and road (surface) characteristics. The separation of their contribution is not straightforward, investigated rarely, and the requirements of homologation standards do not expect it neither. However, if one would like to meet the new vehicle pass-by noise regulations, it is more and more inevitable to have a sophisticated break-down of rolling noise. A straightforward solution is the usage of a one-wheel testbench developed directly for acoustical measurements. Such design process is presented in this paper, where the most important requirements are: enabling the users to compare tires from acoustical aspect under totally objective conditions, modelling the typical conditions of vehicles and ensuring data for rolling noise simulations. One further functionality of the testbench is to reproduce the real rolling noise by mounting realistic road surface sections onto the superficies.

Open Access: Yes

DOI: DOI not available

Numerical methods for solving the modified filter algebraic riccati equation for H-infinity filtering

Zsolt Horváth

Publication Name: Przeglad Elektrotechniczny

Publication Date: 2019-01-01

Volume: 95

Issue: 4

Page Range: 9-15

Description:

This paper presents numerical methods for solving the Modified Filter Algebraic Riccati Equation (MFARE) for synthesis of H-infinity fault detection filters. Two methods are presented, namely the gamma-iteration and then rewriting the MFARE in Linear Matrix Inequalities (LMIs) and casting it as a convex optimization problem. Each algorithm has to ensure the condition for a global convergence and also has to deliver an optimal solution. Not at least the computational cost has to be as small as possible.

Open Access: Yes

DOI: 10.15199/48.2019.04.02