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Found 6374 publications

Prioritising water-related regional development project ideas based on stakeholder involvement activities: A case study from Szigetköz, Hungary

Katalin Bene Máté Chappon Attila Kálmán R. P. Ray

Publication Name: Environmental Challenges

Publication Date: 2024-08-01

Volume: 16

Issue: Unknown

Page Range: Unknown

Description:

Szigetköz—a large island of the Danube in Hungary—is attracting a new wave of interest in water-related regional development projects from the public and private sectors alike. The revived interest in the Szigetköz floodplain area, which has historically endured the adverse effects of large-scale water management initiatives, draws attention to the necessity for careful consideration and the active involvement of local stakeholders in the decision-making process. In our research, we conducted various stakeholder engagement activities, including interviews, questionnaires, and workshops. These activities helped define the problems and objectives of each stakeholder group. Through collaborative consultations, we gathered over 100 proposed water related development project ideas. Additionally, to address key issues in project development and selection, we evaluated the integrative potential of each proposed project, considering the number of distinct water management issues it addressed. We also assigned an attitude score to each project, derived from the diverse objectives of various stakeholder groups, and analysed these quantities using a multiple-criteria analysis. This paper details a novel approach to assess and rank the proposed water-related regional development project ideas based on the calculated integrative potential and attitude scores. The goal was to prioritise and further develop these proposed projects to benefit Szigetköz and its surrounding areas. Main results of the study have shown the average project scored between 0.33–0.50 in integrative potential out of a maximum of 1.00 For positive attitude score the average was between 0.28–0.43, out of a maximum of 1.00 while for the negative attitude score the average project scored between -0.14–0.00 out of a minimum of -1.00. The ranking of projects that was based on these scores, highlighted three types of proposed projects that need to be further developed in different ways. The top-ranked positive attitude integrative projects need cost-benefit calculations involving all ecosystem services to justify their economic sustainability. Top-ranked opposing attitude integrative projects need conflict resolution to be socially sustainable. Finally, project ideas that scored low on integrative potential need to be developed to make use of blue-green infrastructure, and circular economical advancements to foster their environmental sustainability.

Open Access: Yes

DOI: 10.1016/j.envc.2024.100994

Decisions with general scope in the light of special sectoral regulations in the Hungarian administrative system

János Kálmán

Publication Name: Hungarian Journal of Legal Studies

Publication Date: 2024-03-21

Volume: 64

Issue: 2

Page Range: 220-235

Description:

In the 21st century, the two administrative instruments that have the greatest impact on the legal situation of members of society, administrative enforcement and administrative legislation, have been and are being confronted with a number of social challenges (global economic crisis, refugee crisis, epidemics and pandemics). The challenges of the 21st century require public intervention to provide a rapid, accurate and effective response to the problems that arise, while ensuring legality and the protection of the rights of the citizens. The first responses to social problems are provided by sectoral regulations, which may conflict with general rules of administrative procedure. The study analyses administrative decisions of general scope in the light of special sectoral regulation and review the points of conflict with general rules of administrative procedure. The study concludes with a proposal.

Open Access: Yes

DOI: 10.1556/2052.2023.00439

Optimizing fuzzy flip-flop based neural networks by bacterial memetic algorithm

László Gál Rita Lovassy Laszlo T. Koczy

Publication Name: 2009 International Fuzzy Systems Association World Congress and 2009 European Society for Fuzzy Logic and Technology Conference Ifsa Eusflat 2009 Proceedings

Publication Date: 2009-12-01

Volume: Unknown

Issue: Unknown

Page Range: 1508-1513

Description:

In our previous work we proposed a Multilayer Perceptron Neural Networks (MLP NN) consisting of fuzzy flipflops (F3) based on various operations. We showed that such kind of fuzzy-neural network had good learning properties. In this paper we propose an evolutionary approach for optimizing fuzzy flip-flop networks (FNN). Various popular fuzzy operation and three different fuzzy flip-flop types will be compared from the point of view of the respective fuzzy-neural networks' approximation capability.

Open Access: Yes

DOI: DOI not available

Novel calculation of fuzzy exponent in the sigmoid functions for fuzzy neural networks

János Botzheim Peter Foldesi

Publication Name: Neurocomputing

Publication Date: 2014-04-10

Volume: 129

Issue: Unknown

Page Range: 458-466

Description:

This paper presents a novel calculation of fuzzy exponent in the sigmoid functions for fuzzy neural networks. The investigated fuzzy neural network applies fuzzy input signals and crisp connection weights in the network's hidden and output layers. The applied calculation of fuzzy exponent is based on a parametric representation of the fuzzy exponent that is able to provide a crisp output instead of the extension principle's fuzzy output and requires significantly less computational effort than the learning based on α-cuts. For the training of the network the bacterial memetic algorithm is applied which effectively combines the bacterial evolutionary algorithm with gradient based learning. The method is tested on a benchmark problem and on two real datasets. Comparison to the classical technique concerning the learning time is also provided in the paper. © 2013 Elsevier B.V.

Open Access: Yes

DOI: 10.1016/j.neucom.2013.09.013

Numerical Modeling and Optimization of a Quasi-Resonant Inverter-Based Induction Heating Process of a Magnetic Gear

Tamas Orosz Balázs Nagy Miklos CSIZMADIA

Publication Name: Energies

Publication Date: 2024-08-01

Volume: 17

Issue: 16

Page Range: Unknown

Description:

Induction heating is a clear, cheap, and highly effective technology used for many industrial and commercial applications. Generally, a time-varying magnetic field produces the required heat in the workpiece with a specially designed coil. The efficiency of the heating process depends highly on the coil design and the geometrical arrangement. A detailed and accurate finite element analysis of the induction heating process usually needs to resolve a coupled thermoelastic–magnetic problem, whose parameters values depend on the solution of another field. The paper deals with a shrink-fitting process design problem: a gear should be assembled with an axe. The interesting part of this case study is given the prescribed low limits for critical stress, the temperature of the gear material, and the heat-treated wearing surfaces. A coupled finite-element-based model and a genetic algorithm-based parameter determination methodology were presented. A thermal imaging-based measurement validated the presented numerical model and parameter determination task. The results show that the proposed methodology can be used to calibrate and validate the numerical model and optimize an induction heating process.

Open Access: Yes

DOI: 10.3390/en17164130

Comparison between European protestant and catholic economic development through modern painting

No authors available

Publication Name: DETUROPE

Publication Date: 2018-01-01

Volume: 10

Issue: 1

Page Range: 82-96

Description:

Since Max Weber, economists suggest that religious activity affects the European economic development, and this hypothesis was proven between the seventeenth and nineteenth centuries. Accordingly Protestant economic thinking accelerated the evolving system of capitalism, giving adequate attitudes to the accumulation of wealth. This research supposes that the mentioned capitalist approaches have their own impressions on visual arts, particularly on modern painting. It examines almost nine hundred religious paintings from the fifteenth to nineteenth centuries, investigating signs of business activities on the artworks. This form of qualitative examination apply the methodology of content analysis. As a result of the study the former hypothesis of Weber could be verified from multidisciplinary approach.

Open Access: No

DOI: DOI not available

Economic development and economic governance through the example of the city of Gyor

No authors available

Publication Name: DETUROPE

Publication Date: 2018-01-01

Volume: 10

Issue: 1

Page Range: 97-115

Description:

Since the 1990s the metropolitan region and its governance has got into the focus of regional science again. Nowadays a newer wave of metropolitan governance is authoritative, which has exceeded the former administrative-territorial planning aspects, and has appeared on the scene as the mechanism of economic development policy. Examining the development stages of regional policy it is well-known that the classical (modern) approach was superseded by the postmodern one. While the national methods applied in the classical period were characterized by strictness, central regulation, indirect regulation of the market (Fordist approach), in the postmodern period flexibility, decentralization and direct regulation have come to the fore (Post-Fordism). In the postmodern period the state level also takes its role in the financing of innovation and research and and development, and the notions of networking and competitiveness are coming more and more to the fore. In this article I analyze these processes through the case study of Gyor. After the theoretical introduction I examine the tools of economic development and economic governance in the Gyor metropolitan region. Activities observed in Gyor can strengthen the view-point that the processes of economic development and economic governance have nowadays been going on in parallel with each other. Moreover, the coordinating activities of local authorities can be observed in the work of organizations that support economic governance. In the course of the research it was also confirmed that built infrastructure can serve as a fundamental condition for the cooperation of network-systems that operate the governance system of a municipality.

Open Access: No

DOI: DOI not available

Interpretation of disruptive innovation in the era of smart cities of the fourth industrial revolution

No authors available

Publication Name: DETUROPE

Publication Date: 2018-01-01

Volume: 10

Issue: 1

Page Range: 53-70

Description:

The exponential development of information technology and, in this context, the latest generation of open innovation systems result in revolutionary changes in almost every industry as well as in other areas of life. From the automotive industry to the energy sector and to tourism, newcomers emerge everywhere, building on the tools of disruptive innovation, which with earlier unprecedented speeds transform their previous industry power. The essence of the smart city approach is to put the latest tools of technological advancement in serving the social, economic and ecological sustainability of cities' lives for the inhabitants as well as for the enterprises of the city. Industry 4.0 is an imagined future, which in our opinion - in direct or indirect ways - would have a fundamental influence on smart cities and their environment and regions, given that their primary goal is to improve a country's competitiveness. In our study, we review the relevant literature on the definition of and approach to innovation as well as the smart city concept in this new revolutionary age, we demonstrate relevant correlations between the concepts of disruptive innovation, smart city and Industry 4.0.

Open Access: No

DOI: DOI not available

An attempt to categorize Hungarian community currencies

No authors available

Publication Name: DETUROPE

Publication Date: 2018-01-01

Volume: 10

Issue: 1

Page Range: 144-159

Description:

Since the emergence of complementary currencies in the 1980s there have been numerous attempts to classify them, despite that the terms local currency, community currency and many others describing place-based monetary tools are not considered similarly by scholars. The local currencies take many forms, and local governments play different roles in their emergence and development. In Hungary there has been an increasing attention and discussion around the idea of implementing these alternative monetary tools. There is a growing number of working complementary currencies in Hungary, but academic research focuses mostly on whether these can contribute to the local development and what kind of effects they have. The aim of this paper is to present a possible categorization of Hungarian complementary currencies based on the role local governments played in their implementation. I evaluate whether these community currencies are effective at first, and attempt to categorize them based on their purpose, association form and their relationships with local governments, with the purpose of increasing awareness for these initiatives in the process of policy-making.

Open Access: No

DOI: DOI not available