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Found 6412 publications

Prioritisation of Nielsen’s usability heuristics for user interface design using fuzzy cognitive maps

Muhanna Muhanna Rita N. Amro Saransh Dhama Laszlo T. Koczy

Publication Name: Communications in Computer and Information Science

Publication Date: 2018-01-01

Volume: 853

Issue: Unknown

Page Range: 511-522

Description:

Usability Heuristics are being widely used as a means of evaluating user interfaces. However, little existing work has been done that focused on assessing the effect of these heuristics individually or collectively on said systems. In this paper, the authors propose an approach to evaluating the usability of systems that deploys a prioritised version of Nielsen’s usability heuristics. Fuzzy cognitive maps were used to prioritise the original heuristics according to experts in both fields. Using either set of heuristics evaluators can identify the same number of usability issues. However, when trying to enhance the overall usability of a system, the prioritised set of heuristics can help stakeholders focus their limited resources on fixing the subset of issues that collectively has the worst effect on the usability of their systems during each iteration. To test the findings proposed by authors several websites were evaluated for various usability problems. The experimental results show that by using the proposed heuristics, evaluators were able to find a comparable number of problems to those who used Nielsen’s, the prioritised heuristics resulted in an ordered list of issues based on their effect on usability. Therefore, the authors believe that heuristic evaluation in general, and their introduced heuristics in particular, are effective in dealing with issues when facing situations of limited resources.

Open Access: Yes

DOI: 10.1007/978-3-319-91473-2_44

Sustainable corporate environmental information disclosure: Evidence for green recovery from polluting firms of China

Laszlo Vasa Qin Chen Fengjiao Long Jian Wang Lu Xu

Publication Name: Frontiers in Environmental Science

Publication Date: 2022-09-29

Volume: 10

Issue: Unknown

Page Range: Unknown

Description:

For a greener society, good corporate environmental information disclosure is crucial. This study empirically examines the influence of media attention and state-owned equity, and their interaction on corporate environmental information disclosure by A-share heavily polluting firms in the Shanghai and Shenzhen stock markets from 2015 to 2019. The results show that state-owned equity can improve the level of corporate environmental information disclosure; however, it mainly affects financial environmental information disclosure. Media attention also improves the level of corporate environmental information disclosure, but only for non-financial environmental information. Moreover, media attention and state-owned equity have a certain substitution effect on environmental information disclosure: a higher state-owned equity ratio weakens the positive effect of media attention on environmental information disclosure. To improve environmental information disclosure, the government must clarify disclosure standards to improve the comparability of environmental information. In addition, media and shareholders can fully leverage their external and internal supervisory roles to promote the environmental responsibilities of firms. Our findings can be useful for further promoting corporate environmental information disclosure and developing relevant policies.

Open Access: Yes

DOI: 10.3389/fenvs.2022.1019499

The migration trends of highly skilled. Focus on brain waste

Katalin Bándy

Publication Name: Tarsadalomkutatas

Publication Date: 2014-12-01

Volume: 32

Issue: 4

Page Range: 323-335

Description:

After the Hungarian transition, the joining the EU and by the employment agreements among the European countries the west-wards migration brisked up. The high unemployment, the marketable professions and knowledge of languages helped the qualified experts to emigrate for better job and salary or prestige into the western European countries. Researching the Hungarian migrant potential it is verifiable; learnt material/occupancy and knowledge gained in Hungary almost lost as the employees that migrate, do not strive to get a job in accordance with their knowledge but in case they do so, it is without success. The brain waste tendency and underemployment is to be mentioned better, than the brain drain in case of the Hungarian high-skilled (BA, MA) employees obtaining a job abroad. This study is about to reveal the problems of mentioned above and this study is supported by the result of the survey made in the EU-15 among the Hungarian economics graduated migrants, examines the causes and in the focus there are the migrant motivations of the high-skilled young generation after the crisis. The survey's period is 2012-13 and it was carried out in a form of a questionnaire.

Open Access: Yes

DOI: 10.1556/Tarskut.32.2014.4.3

Introduction of simulation method and possibilities of standardisation

András Pfeiffer János Jósvai József Perger Botond Kádár

Publication Name: International Workshop on Modeling and Applied Simulation Mas 2009 Held at the International Mediterranean and Latin American Modeling Multiconference I3m 2009

Publication Date: 2009-01-01

Volume: Unknown

Issue: Unknown

Page Range: 224-231

Description:

The paper focuses on the applicability of simulation technology in several hierarchical levels of a production oriented industrial firm. The topic of the paper addresses the discrete event simulation technology which is used to model the material flow and the manufacturing processes in the company. This paper would like to show some practice experience about the industrial introduction steps of manufacturing simulation, as well as our recent research result in the field of standardized simulation model building and data handling procedure.

Open Access: Yes

DOI: DOI not available

Laser powder bed fusion and casting for an advanced hybrid prototype mold

Martin Zobač Imre Fekete József G. Kovács Béla Zink István Hatos Dániel Török Tatyana Ageyeva Róbert Boros Hajnalka Hargitai

Publication Name: Journal of Manufacturing Processes

Publication Date: 2022-09-01

Volume: 81

Issue: Unknown

Page Range: 748-758

Description:

One of the factors limiting the throughput of injection molding is cooling time, which is the most significant part of the total cycle time. The cooling efficiency of molds can be considerably improved with additive manufacturing techniques. A 3D printed injection mold with conformal cooling channels reduces cooling time by 30–40 %. However, the cooling efficiency of these molds can be further improved with a multi-material approach and the use of materials with excellent thermal and mechanical properties. In this study, we propose a hybrid mold insert made of steel and copper, produced with the combination of Laser Powder Bed Fusion (L-PBF) and casting. The steel shell that contains conformal cooling channels was printed by L-PBF. Then this shell was cast with copper. We found that the hybrid mold insert we developed has lower residual cooling time and heat extraction is more uniform than the conventional printed steel insert. The developed hybrid mold insert enables a reduction of residual cooling time by 15 %.

Open Access: Yes

DOI: 10.1016/j.jmapro.2022.07.034

Comparison of the different design software tools for the brushless DC motor designing

Miklós Kuczmann Gergely Kovács

Publication Name: Pollack Periodica

Publication Date: 2013-04-01

Volume: 8

Issue: 1

Page Range: 179-188

Description:

The paper presents simulation results of a two-dimensional permanent magnet synchronous motor, which were calculated by the help of the Infolytica MotorSolve and of the COMSOL Multiphysics, as well. The simulation results were compared with each other focusing on the torque, the magnetic flux density and the magnetic potential of the permanent magnet synchronous motor.

Open Access: Yes

DOI: 10.1556/Pollack.8.2013.1.16

Effects of outdoor education on traveling habits of adults in Slovakia and Hungary

Jaromír Šimonek Miklós Bánhidi Beata Dobay

Publication Name: Journal of Physical Education and Sport

Publication Date: 2018-01-01

Volume: 18

Issue: 2

Page Range: 731-738

Description:

The purpose of the research is to present results of an international study are presented regarding the traveling habits of adults who participated in outdoor education programs during their childhood. Materials and methods: in the survey, 2965 Slovak and 2404 Hungarian adults were studied to determine if there is any correlation between school experience and travel behavior. In both countries, there are serious discussions as to why school education should offer and support school camps, which teach children sport skills while they are away from home. The data were processed using the Statistica program. Results: In both countries, one out of every five individuals (21.6% SK; 22.2% HU) participating in the study take a vacation in the summer months. As children, many (84.5% SK, 92% HU) of the participants took part in school water sport camps. Of these participants, 65.8% of the Slovaks and 60.2% of the Hungarians rated the time spent there as very positive. Among the positive values, 44.2% indicated that the mountains were a favourite and frequently a chosen travel destination. Twenty-five percent of the respondents spend more than four hours hiking during their vacation. Conclusions: Based on the results of our survey we can conclude that the camps in the mountains can be considered as a useful outdoor program (5-7 days), where the students can experience traveling, living together and having fun.

Open Access: Yes

DOI: 10.7752/jpes.2018.02107

Hungary - Local government in Hungary: A creeping centralisation?

Zoltán Szente

Publication Name: Local Government in Europe the Fourth Level in the Eu Multilayered System of Governance

Publication Date: 2013-01-01

Volume: Unknown

Issue: Unknown

Page Range: 151-182

Description:

No description provided

Open Access: Yes

DOI: 10.4324/9780203766729

Diagnostic measurement for the effective performance of motor vehicles

István Lakatos

Publication Name: Acta Polytechnica Hungarica

Publication Date: 2013-01-01

Volume: 10

Issue: 3

Page Range: 239-249

Description:

Diagnostics means instrumental measurement without dismantling. So measuring the engines on rolling roads is not incorporated in this concept, as this measurement is accomplished on engines taken out from vehicles. During service, it is often necessary to measure the performance of the engines, or to judge the performance projection of some corrections. The new method discussed in this article provides a solution to this problem.

Open Access: Yes

DOI: 10.12700/aph.10.03.2013.3.16