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Found 6334 publications

Age-friendly Transport: Traffic Safety for All

Balázs Horváth Diána Henézi Csaba József Májer

Publication Name: Periodica Polytechnica Transportation Engineering

Publication Date: 2024-01-01

Volume: 52

Issue: 3

Page Range: 209-212

Description:

The elderly make up an increasing percentage of the European population and, with it, of the Hungarian population. Modern society is built around mobility. These two factors together lead to an increasing proportion of elderly drivers on the roads. Given the high proportion of people with chronic neurological conditions (stroke, Parkinson's disease, dementia), particular care should be taken to regularly check their fitness to drive. At present, there is no standardized, well-established protocol for the objective assessment of fitness to drive in the case of these diseases. Our paper discusses this matter.

Open Access: Yes

DOI: 10.3311/PPtr.23804

Hybrid Artificial Intelligence-based Process Flowsheet Synthesis and Design using Extended SFILES Representation

Mauricio Sales-Cruz Vipul Mann Rafiqul Gani Venkat Venkatasubramanian

Publication Name: Computer Aided Chemical Engineering

Publication Date: 2024-01-01

Volume: 53

Issue: Unknown

Page Range: 1279-1284

Description:

Process flowsheet synthesis and design involves simultaneously solving several problems, including determining the unit operations and their sequence, underlying reactions and reaction stoichiometry, downstream separation design and operation parameters, sustainability factors, and many more. Naturally, this results in a large amount of data being associated with a given process flowsheet that captures the relevant process context and should be readily accessible. This data is useful for solving related problems both using data-driven and process knowledge-based methods. A hierarchical framework, called the extended SFILES (or eSFILES), proposed recently stores this information using a combination of text-based, graph-based, and ontology-based representations. Here, we provide details on a prototype software for automated flowsheet representation and generation across various levels in the eSFILES framework. The underlying methods include a novel flowsheet grammar, a set of inferencing algorithms, and interfacing with a commercial process simulator facilitating rigorous flowsheet simulation.

Open Access: Yes

DOI: 10.1016/B978-0-443-28824-1.50214-3

Exploring factors of service adoption using SERVQUAL paradigm: Its impact on millennials’ adoption of services in the self-drive rental sector

Laszlo Vasa Vinod Sharma A. S. Suresh Yogesh Mahajan

Publication Name: Innovative Marketing

Publication Date: 2024-01-01

Volume: 20

Issue: 2

Page Range: 182-192

Description:

The self-drive rental sector has witnessed exponential growth in recent years due to rising demand for long and short-distance drives among millennials. This study aims to investigate the quality of services in the self-driving rental sector and its impact on customer adoption or rejection of service in India. The conceptual framework was developed using the SERVQUAL model and other important factors affecting consumers’ service adoption. A quantitative research method was deployed, and data were gathered through a survey method using a structured questionnaire (based on a 5-point Likert scale). The sample size comprised 385 respondents, 23-38 years old millennials (with 69% of males and 31% of females). The population sample was chosen from Delhi, Mumbai, and Bangalore, India. The data were collected in March 2023. The factor and regression analyses were applied along with chi-square and SEM analyses to test the research hypotheses. The results indicated that the absence of low prices (42%), customer assistance (28 %), and security issues is responsible for consumer rejection. The factors leading to dissatisfaction are the absence of consumer schemes and discounts, a lack of staff interaction and assistance, and poor service quality. The brands must focus on the negative impact arising from the absence of these factors and effectively address the areas of improvement to regain customer trust and garner customer loyalty.

Open Access: Yes

DOI: 10.21511/im.20(2).2024.15

Defining User Coordinate Systems for Industrial Robots in Mixed Reality

Péter Galambos Csaba Hajdu Károly Széll Zoltán Szilágyi Ákos Soós

Publication Name: Cando EPE 2024 Proceedings IEEE 7th International Conference and Workshop Obuda on Electrical and Power Engineering

Publication Date: 2024-01-01

Volume: Unknown

Issue: Unknown

Page Range: 225-230

Description:

This article presents a solution to support the identification of important user coordinate systems for creating an industrial robot work programme. The objective of this article is to provide a support tool for users for a task that may arise numerous times during the lifecycle of industrial robots. The solution described in the article offers a developable support tool that can be transferred from the industrial robotics environment to the collaborative robots' application environment, where the proportion of professionally trained and experienced users may be smaller compared to the previously mentioned area. By reducing the time required and improving the quality of task results, it can contribute to increasing the efficiency of robot systems.

Open Access: Yes

DOI: 10.1109/CANDO-EPE65072.2024.10772842

Does self-esteem mediate the relationship between stress and exercise addiction?

Renato Pisanti Rocco Servidio Francesco M. Melchiori Calogero Lo Destro Paolo Soraci Carla D. Di Bernardo Annalisa La Rocca Attila Szabo

Publication Name: Psychology Hub

Publication Date: 2024-01-01

Volume: 41

Issue: 3

Page Range: 23-30

Description:

Background: The risk of exercise addiction is generally associated with high levels of stress and low self-esteem. Previous studies have revealed a significant association between stress, risk of exercise addiction, and self-esteem. However, the mediating effect of the latter was not examined. Aims: Based on the Interactional Model of Exercise Addiction, we hypothesized that stress might influence the risk of exercise addiction through the mediating role of self-esteem. Method: This cross-sectional study used a convenience sample of 200 Italian exercisers aged 18 to 69 (M = 35; SD = 4.05; 62% females). Participants completed demographic and exercise habits-related questions, the revised Exercise Addiction Inventory, Stress subscale of DASS-21, and the Rosenberg’s Self-Esteem Scale in an online survey. Results: A positive association was found between stress and the risk of exercise addiction. However, a negative association emerged between stress and self-esteem. Furthermore, self-esteem was also related negatively to the risk of exercise addiction. Notably, self-esteem partially mediated the association between stress and the risk of exercise addiction. Conclusions: Self-esteem plays a role in the stress and exercise addiction relationship. Overall, the results contribute to a better understanding of the complex set of mechanisms that underlie the effects of stress on exercise addiction.

Open Access: Yes

DOI: 10.13133/2724-2943/18355

Hydrogen System Design Methodology for Autonomous Houses in Central-East Europe

István Ervin Háber Virag Meszaros Erzsébet Cserta

Publication Name: Chemical Engineering Transactions

Publication Date: 2024-01-01

Volume: 114

Issue: Unknown

Page Range: 901-906

Description:

As part of the energy transition, the building sector must be revolutionized to reach the goal of carbon neutrality since it is responsible for 3 Gt of CO2 emission worldwide every year. Energy storage capacities, which could help in the spread of renewables – are still at a very low level. Hydrogen is considered a solution for seasonal hydrogen storage, but only a few examples exist still worldwide to showcase the technology. The residential sector is more underrepresented in this manner. Therefore, the number of good practices should be higher to give examples to architects and engineers. In this paper, a design methodology is presented, which can help to identify and size the system components for autonomous (i.e., grid-independent) homes. An opportunity is given to estimate the cost of the whole complex electrical system. As the heat loss factor of buildings and the energy use of residents can be determined as part of the energy label certification, the sizing of the renewable energy equipment is an iterative process. For that, more grade system losses have to be taken into consideration. The result of this study is a numerical formula that gives the needed component properties. This offers stakeholders and real estate developers an easy tool to predesign their systems in the early stages of development.

Open Access: Yes

DOI: 10.3303/CET24114151

Main trends in the tourism industry in Indonesia between 2020–2023

Lóránt Dávid Setiawan Priatmoko Al Fauzi Rahmat

Publication Name: Journal of Infrastructure Policy and Development

Publication Date: 2024-01-01

Volume: 8

Issue: 11

Page Range: Unknown

Description:

Indonesia’s tourism industry has emerged as a strategic sector, contributing to the country’s foreign exchange earnings. Given the prominence of this sector, there is significant potential for further development. Indeed, a mapping study to assess the dissemination of the trend and the potential for further issues to emerge would be highly beneficial. It is encouraging to note that academics have produced substantial literature on the subject, offering insights into its many facets. However, there is still a need for more in-depth analysis to understand the trends and issues currently facing the sector entirely. Consequently, this article examines the core themes in Indonesia’s tourism studies and maps the potential for future research on tourism issues and regulations. To this end, it employs a qualitative, four-year data set (2020– 2023) and a SWOT analysis to identify critical aspects of Indonesian tourism issues. The data was collected in three forms: government reports, statistical data, and research articles (n = 252 samples) from the Scopus database. The results demonstrate that the predominant trend in Indonesia’s tourism industry is the widespread embrace of ecotourism at both the local and regional levels. Instead of identifying a limited number of leading destinations, the focus has shifted towards developing tourism villages and multi-stakeholder tourism. The primary concerns are the Indonesian tourism industry’s growth potential and sustainability. The development potential of Indonesian destinations based on SWOT objectives is a crucial aspect, and its score shows that Indonesia’s tourism sector is strategically positioned to take advantage of strengths and opportunities.

Open Access: Yes

DOI: 10.24294/jipd.v8i11.8162

Supporting the Pedagogical Evaluation of Educational Institutions with the Help of the WTCAi System

Zoltan Szuts Eniko Nagy Karl Eva Gyorgy Molnar

Publication Name: Acta Polytechnica Hungarica

Publication Date: 2024-01-01

Volume: 21

Issue: 3

Page Range: 125-142

Description:

One of the main aims of educational institutions, is to prepare children for further education and successful integration into the workforce. To achieve this, as much as possible, it is necessary to meet the requirements and expectations set by dynamically changing economic and social environments. Research has shown that learner-centered knowledge transfer and a constructive pedagogical approach have proven more effective in achieving all possible learning outcomes than cognitivist learning theory (teacher-centered education). Therefore, pedagogical monitoring and evaluation procedures are necessary and integral parts, of the educational process, with the goal not only being performance evaluation but also improving and supporting the learning process. Then again, a sad characteristic of the current system is that, on the one hand, it needs to support individual learning paths adequately and on the other hand, the validity of measuring tools suffers, due to the generation gap between teachers and children. Therefore, the development of pedagogical monitoring and evaluation processes, should be an integral part of the constant improvement of educational institutions. Consequently, the question arises: How can the pedagogical monitoring and evaluation system be developed, so that individual learning paths are supported and the validity of measurement tools is optimally ensured? In seeking the answer to this question, our research aims to develop a complex evaluation system, supported by artificial intelligence (WTCAi-When The Child Ask with AI), that suggests suitable actions for monitoring and evaluation, for subject teachers.

Open Access: Yes

DOI: 10.12700/APH.21.3.2024.3.9

Hammerstein Model Identification for Autonomous Vehicle Dynamics by Two-Stage Algorithm †

György Terdik Dániel Pup György Istenes József Bokor

Publication Name: Engineering Proceedings

Publication Date: 2024-01-01

Volume: 79

Issue: 1

Page Range: Unknown

Description:

In this paper, the nonlinear identification (ID) of the lateral dynamics of a road vehicle is presented. The mathematical description of lateral dynamics is crucial for developing various self-driving functions. One method of describing dynamics is system identification from measured data. During the measurements, the steering servo of a test vehicle kept in straight-line motion by a self-driving function was artificially excited. A Hammerstein–Wiener model was successfully applied for the identification of these measurements. A nonlinear estimator was used during the fitting, which needed high computing power. For the Hammerstein–Wiener model, we used the two-stage algorithm (TSA) with a bilinear estimation method, which makes it possible to apply linear regression. We compared these methods during simulations and real data.

Open Access: Yes

DOI: 10.3390/engproc2024079054