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Role of Science Centres in the Field of Sustainability

Attila Pongracz Szabolcs Rákosi

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 109-114

Description:

Sustainable Development is hard to imagine without a responsible, smart society. Accordingly, Education and Awareness-raising are essential prerequisites for social knowledge and acceptance of Sustainability. This research examines the role of today's innovative educational and awareness-raising institutions and science centres in presenting Sustainable Development issues playfully and experientially, and thus in shaping the attitudes of upgrowing generations and adults. The research aims to investigate how and to what extent science centres in Hungary reflect in their content and operations the Sustainable Development Goals (SDGs) declared by the UN and Sustainability in a broader sense. A questionnaire survey was carried out by contacting 14 science centres, supplemented by an analysis of the external communication of the institutions and a telephone inquiry. The results indicate that instead of representing the diversity of SDGs, on average, only 30 % of them are presented, and science centres are highly specialised, which threatens equal access and fairness. This study is outstanding in several respects: it contributes to the development of institutions by presenting promising practices, and its academic relevance is given by the fact that research on the operation of science centres is still lacking in Hungary.

Open Access: Yes

DOI: 10.3303/CET23107019

Role of Information (Internet) in the Route Choice at Sustainable Urban Public Transport

Agoston Winkler Balazs Horvath Viktor Nagy

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 217-222

Description:

The role of information is higher and higher in the modern society. It is the same in transportation, especially in urban environments. An increasing share of the world's population is living in urban environments, and the understanding of transport processes in this field is essential. To be able to produce a better public transport system, the decision-making process of the individual users must be understood. By helping them to make the right decision from the viewpoint of the whole urban society, a more sustainable system can be built up (through a more attractive public transport service, with fewer cars) with highly reduced chemical pollution. This paper deals with the issue of the helping force of collected information at the special decision of route choice. Five different scenarios will be described to show the power of information in individual decisions. As a basis, there is static information only (like a timetable). In the second case, there are only limited dynamic information sources (real-time user information at the bus stop), while in the third case, the possibilities of permanent dynamic information are considered on the real timetable with the help of IoT. In the final two cases, there is the assumption of a critical mass of IoT in the transportation system, like the passengers’ mobile phones and the vehicles themselves. This paper describes a novel theoretical framework. Quantitative and qualitative results are the subject of future work.

Open Access: Yes

DOI: 10.3303/CET23107037

Optimal Elasto-Plastic Analysis of Reinforced Concrete Structures under Residual Plastic Deformation Limitations

Szabolcs Fischer Majid Movahedi Rad Sarah Khaleel Ibrahim

Publication Name: Acta Polytechnica Hungarica

Publication Date: 2023-01-01

Volume: 20

Issue: 1

Page Range: 45-62

Description:

In this study, an investigation regarding optimal elastic-plastic analysis method of different reinforced concrete (RC) structures is held by applying the residual plastic deformations limitations on the steel bars inside the reinforced concrete. Where different structures, including simple beam and slab, are selected as benchmarks and modelled numerically using ABAQUS in order to calibrate their experimental behaviour according to laboratory tests. Furthermore, concrete damage plasticity (CDP) constitutive model was applied to represent concrete behaviour in the numerical models considered. Then, an objective function was established for optimizing the applied plastic loads for each structure where the process of controlling plastic deformations was carried out by applying constraints on the complementary strain energy of the residual internal forces initiated inside the steel bars. This methodology was applied by authors by writing MATLAB code and linking it with ABAQUS to determine the corresponding applied plastic load for each entered complementary strain energy. Generally, applying optimization problem for each model showed that the complementary strain energy of the residual forces reflects the general behaviour of the structures and may be assumed as a constraint controlling the plastic behaviour of the structures whereas the obtained results indicated how structures acted differently when possessing different complementary strain energy values turning from elastic into elasto-plastic condition and then reaching plastic state.

Open Access: Yes

DOI: 10.12700/APH.20.1.2023.20.4

Stair Climbing Aid Devices as Parts of Sustainable Healthcare

Péter Horváth F. Hajdu Attila Nagy

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 325-330

Description:

An important aspect of a sustainable society is the care of elderly people. For a sustainable society, it is necessary to develop cost-effective, culture-appropriate, and sustainable eldercare services, which should guarantee both safety and quality. It is also important to prolong the time in which elderly people can live independently to contribute to sustainable healthcare. For elderly people, a daily activity, climbing stairs, might be difficult. This paper presents an overview of stair-climbing aid devices. The paper introduces the sustainable healthcare of elderly people. Then, different stair-climbing aid devices are explained and analyzed, ranging from passive ones to high-tech stair-climbing exoskeletons. A prototype of a new solution, which is an Intelligent Crutch, is presented. After elaborating on the design criteria, the detailed conceptual design and the working principle of the device are presented. The presented concept fills a gap between expensive and complicated stair climbing aid devices and simple and cheaper solutions. It is cheaper and simpler than the active, complicated stair-climbing devices but performs almost the same function. The device helps elderly and disabled people to climb stairs alone, thus improving the quality of life of the target group. The study concludes with further development tasks in order to help elderly people and contribute to a sustainable society.

Open Access: Yes

DOI: 10.3303/CET23107055

THE SOCIO-ECONOMIC PERFORMANCE OF THE HUNGARIAN NUTS3 REGIONS BETWEEN 2010-2020

Dusek Tamás Judit Berkes

Publication Name: Deturope

Publication Date: 2023-01-01

Volume: 15

Issue: 2

Page Range: 85-108

Description:

The aim of the study is to analyse the changes in the socio-economic performance of Hungarian regions in the previous decade. The first part of the paper deals with the epistemological and methodological questions of the analysis of temporal change of spatial differences of various individual and composite socio-economic indicators. In the second part the empirical analysis will be conducted at the county level (NUTS 3 level, 20 spatial units), including a wide range of economic, social and demographic variables. The analysis is concerned with processes over an eleven-year period, 2010-2020. Our methodology combines the analysis of individual indicators with the use of complex aggregated indicators composed of several indicators. Some of the counties show higher level of socio-economic performance with more developed infrastructure, higher quality of education and stronger economic base. However, the picture is not entirely uniform, there are small, moderately positive and negative movements compared to the national average.

Open Access: Yes

DOI: 10.32725/DET.2023.014

Integration of Sustainability into the operation of businesses through Human Resource Management Education

Attila Pongracz Szabolcs Rákosi

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 91-96

Description:

This research focuses on a hardly studied dimension of Sustainability, on its aspects of Human Resource Management (HRM). The examination of the topic is justified by the fact that the emergence of Sustainable Human Resources Management (SHRM) as one of today's modern, innovative HR approaches has not yet been examined in Hungary. Thus, the research fills a gap. The study aims to investigate how and to what extent Sustainability is implemented in the HRM practices of businesses of different sizes in the Northwest-Hungarian Economic Development Zone. The questionnaire survey forming the basis of this study was carried out by interviewing managers and HR professionals of the companies. The results indicate that Sustainability appears in extremely diverse ways and degrees in the examined organizations. The vast majority of them still consider Sustainability to be a primarily environmental issue. During their operations, the companies highlight the economic and environmental aspects of Sustainability and, despite the labor shortage, do not place a significant emphasis on Sustainability in the areas of Staffing, Compensation Management, and Staff Development. As a result of this research, Széchenyi István University ensures, through the development of HR training, that future professionals can develop and operate the model of SHRM in practice by taking into account new aspects and applying a complex approach. The results of the study will not only provide new value for the academic sphere but can also contribute to more efficient and fair operation of businesses.

Open Access: Yes

DOI: 10.3303/CET23107016

Lézerszkennerrel felmért közlekedési csomópontok láthatósági vizsgálata referenciasík segítségével

Csaba Koren Zsófia Magyari

Publication Name: Geodezia Es Kartografia

Publication Date: 2023-01-01

Volume: 75

Issue: 1

Page Range: 16-23

Description:

According to road design guidelines, unsignalized intersections should have certain free sight fields to ensure that vehicles approaching from different directions see each other. However, in many cases these sight fields include some obstacles which cause safety concerns. The identification of these obstacles and the planning of appropriate interventions would improve safety. In this article, we present an analysis method suitable for visibility investigation based on a laser scanner survey. We review the methods developed in recent years to select the visible and hidden points of the point cloud. Based on the presented results, we developed a procedure that is consistent with the concept of sight distance used in the field of road design. The survey was taken from an observation point of the drivers on the minor road and the sightlines were projected onto a reference plane along the major road, considering the required sight distance. The projected results appeared as "shadows" from the visibility obstacles on the reference plane. The visibility difficulties detected can be used to decide the appropriate actions to improve the safety of the intersection.

Open Access: Yes

DOI: 10.30921/GK.75.2023.1.2

Sustainable Development in the Sahel Region

Kata D. Jankovits Julia Szoke

Publication Name: Chemical Engineering Transactions

Publication Date: 2023-01-01

Volume: 107

Issue: Unknown

Page Range: 223-228

Description:

Scientists from various fields have long examined the factors contributing to sustainable development in Africa. The paper investigates the topic of sustainable development focusing on a very special part of Africa, the Sahel region, which is an ecoclimatic and biogeographic region of Africa facing many challenges. Consequently, the secondary research to be presented in this paper aims to review some projects and actions taken by various organizations, like the United Nations and the African Union, that stimulate sustainable development in the Sahel region. Accordingly, it focuses on a few of those projects and actions, which, on the one hand, enable sustainable agriculture, the reduction of malnutrition and food insecurity, and water usage combined with latrine construction, and which, on the other hand, enhance natural resource management and increasing resilience to climate change. The paper concludes with some remarks regarding the efficacy of these projects and actions from the viewpoint of sustainability, and finds that even though these projects and actions are of significance, there is still a long road ahead to reach sustainable development in the Sahel region.

Open Access: Yes

DOI: 10.3303/CET23107038

FAMILY-FRIENDLY WORKING ARRANGEMENTS IN THE V4 COUNTRIES

Anna Pátkai Bende

Publication Name: Journal of Community Positive Practices

Publication Date: 2023-01-01

Volume: 23

Issue: 3

Page Range: 99-111

Description:

The study examines the countries of the Visegrad Group from the point of view of how widespread family-friendly working arrangements are in their labor market. The paper highlights that the labor market of the V4 countries in the past decade was characterized by continuous rise of employment rates. As the role of women in the labor market increases, employees have to face constant challenges in reconciling their professional and family obligations. However, flexible working arrangements that could help employees combine work and private life, are still not widespread in the V4 countries. The study primarily examines the proportion of part-time employees and remote workers of the Visegrad countries in the light of Eurostat data. The paper emphasizes the role of the governments, companies, and civil society in creating ideal workplaces for employees with family.

Open Access: Yes

DOI: 10.35782/JCPP.2023.3.07