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Article
Publication date: 3 January 2022

Daniel Straubinger, Attila Toth, Viktor Kerek, Zsolt Czeczei, Andras Szabo and Attila Geczy

The purpose of this paper is to study the solder beading phenomenon (referring to larger-sized solder balls) of surface-mounted electrolytic capacitors. Solder beading could…

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Abstract

Purpose

The purpose of this paper is to study the solder beading phenomenon (referring to larger-sized solder balls) of surface-mounted electrolytic capacitors. Solder beading could induce failures by violating the minimal electrical clearance on the printed circuit board (PCB). In modern lead-free reflow soldering, especially in high-reliability industries, such as automotive, aeroplane and aerospace, detecting and preventing such defects is essential in reliable and cost-effective manufacturing.

Design/methodology/approach

The large size of the involved components may block the view of automatic optical inspection; therefore, X-ray inspection is necessary. To detect the failure mode, X-ray imaging, cross-section grinding, optical microscopy and Fourier transformed infrared spectroscopy were used. High-resolution noncontact profilometry and optical microscopy were used to analyse component designs. The surface mounting process steps were also analysed to reveal their dependence on the issue. Test methods were designed and performed to reveal the behaviour of the solder paste (SP) during the reflow soldering process and to emphasise the component design relevance.

Findings

It was found that the reduction of SP volume only reduces the failure rate but does not solve the problem. Results show that excessive component placement pressure could induce solder beading. Statistical analysis revealed that differences between distinct components had the highest effect on the solder beading rate. Design aspects of solder beading-prone components were identified and discussed as the primary source of the problem.

Practical implications

The findings can be applied in surface-mount technology production, where the total failure count and resulting failure costs could be reduced according to the findings.

Originality/value

This paper shows that component design aspects such as the low distance between the underside of the component and the PCB and blocked proper outgassing of volatile compounds of the SP can be root causes of solder beading under surface-mounted electrolytic capacitors.

Details

Soldering & Surface Mount Technology, vol. 34 no. 4
Type: Research Article
ISSN: 0954-0911

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Publication date: 15 July 2009

Zsuzsanna Toszegi

This chapter summarizes the library history of Hungary, with the main focus on the decades preceding the regime change in 1989. The country has been a member of the European Union…

Abstract

This chapter summarizes the library history of Hungary, with the main focus on the decades preceding the regime change in 1989. The country has been a member of the European Union since 2004. One of the consequences of joining the EU was that Hungary had to implement the three-tier system of higher education defined by the Bologna Declaration. This new system of library and information professional education and training that began in the 2006–2007 academic year is discussed in detail. The first students to begin their studies in the new, two-tier system of higher education will be awarded the BA degree in the first half of 2009. The best of them will be able to continue their studies at the MA level at one of the four universities that were approved for new MA programs in 2008.

Details

Advances in Library Administration and Organization
Type: Book
ISBN: 978-1-84855-710-9

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Book part
Publication date: 15 July 2009

Abstract

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Advances in Library Administration and Organization
Type: Book
ISBN: 978-1-84855-710-9

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Article
Publication date: 4 May 2023

Andrea Szabó and András Déri

Political participation of young people has been examined, but there is a lack of research about how these participation forms are interpreted and what counts as participation for…

127

Abstract

Purpose

Political participation of young people has been examined, but there is a lack of research about how these participation forms are interpreted and what counts as participation for young people. The study aims to identify discourses of political participation in Hungary, where the COVID-19 restrictions during 2020–2021 have confined young people's everyday interactions and political activism to the online space for an extended period. The authors’ asteroid-effect hypothesis suggests that new discourses of political participation have become more widespread, which may have reinterpreted the previous dynamics between online and offline participation.

Design/methodology/approach

The authors analyse the results of six focus groups and eight interviews with young people conducted between 2021–2022 through discourse analysis.

Findings

The qualitative results show that to intellectualise the everyday discourses of youth political participation, extending its classical theories is worthwhile. While online participation has not emerged as a paramount, positive interpretational framework, a new discourse of political participation has emerged, making conversation a fundamental act.

Originality/value

While the results are limited to Hungarian youth, the strong appearance of participation as a communicative action can have consequences to theoretical approaches of political participation. The authors believe that COVID-19 restrictions had a significant role in this change, because family talks became more politicised.

Details

Qualitative Research Journal, vol. 23 no. 5
Type: Research Article
ISSN: 1443-9883

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Effective Leadership for Overcoming ICT Challenges in Higher Education: What Faculty, Staff and Administrators Can Do to Thrive Amidst the Chaos
Type: Book
ISBN: 978-1-83982-307-7

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Book part
Publication date: 9 May 2022

Agnes Lux

In Hungary, soon after the democratic transition in 1989/1990, the institution of the general ombudsman was established, based on the Swedish model, possessing broad oversight…

Abstract

In Hungary, soon after the democratic transition in 1989/1990, the institution of the general ombudsman was established, based on the Swedish model, possessing broad oversight. Since 2012, with the Fundamental Law (new constitution) and a new ombudsman act entering into force, the defense of children’s rights has become one of the legal obligations of the general ombudsman. In this chapter, the author examines the historical background of this “hybrid” institution1 and the performance of the last three commissioners based on the child rights approach of the UN Convention on the Rights of the Child (UN CRC).

The UN CRC represents the “whole child” approach, a holistic view of a child which also informs the work of independent children’s rights institutions (ICRIs). Hence, the four guiding principles of the UN CRC2 (the right to non-discrimination; the best interests of the child; the right to life, survival and development; and the right to participation) can be seen as analyzable elements of an ICRI’s performance. There are also “informal” factors that can influence the performance of an ICRI – even a stand-alone – for example, social and political recognition of the institution, the societal and legal regard of children (are their rights widely recognized or not, etc.), the personal motivation and drive of the ombudsman, the ombudsman’s own interests and background, the financial constraints of the office and the overall political atmosphere and various political influences around. These factors can play a vital role, but their existence can only be assumed in cases where the institution’s more exact outputs based on the UN CRC guiding principles can be seen: the appearance of children in its work, attention to vulnerable groups and cases related to non-discrimination, the number of complaints submitted to the commissioner (including those by children) and the appearance of best interests of children in cases. The author has found differences between the last three commissioners’ performances based on the guiding principles, which are also not independent from informal factors too.

Details

The Roles of Independent Children's Rights Institutions in Advancing Human Rights of Children
Type: Book
ISBN: 978-1-80117-608-8

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Article
Publication date: 15 February 2011

Roy Allen, Norman Bedford and András Margitay‐Becht

The purpose of this paper is to present a “human ecology economics (HEE)” framework for understanding economic growth and development challenges in Eastern Europe.

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Abstract

Purpose

The purpose of this paper is to present a “human ecology economics (HEE)” framework for understanding economic growth and development challenges in Eastern Europe.

Design/methodology/approach

The HEE approach relies on evolutionary and complex systems processes; it expands the field of ecological economics by incorporating interdisciplinary material from the humanities; and it allows a long‐run perspective with a focus on sustainability of human systems. Using this framework and primary research from Hungary, Estonia, and Azerbaijan, challenges to Eastern European development are identified.

Findings

The main limit to Eastern European sustainable development is not “production capital”, i.e. the availability of natural resources, fixed human‐made capital, and intermediate consumption, but instead shortages of “transaction capital”, i.e. “social capital, informational capital, and financial capital.”

Research limitations/implications

Rigorous analytical models of, and precise predictions of, change in the human ecology are at present not possible using evolutionary and complex systems approaches; however, Eastern Europe can be fruitfully studied through the HEE approach, and certain simulation methods and lessons from recent history are suggested.

Practical implications

Greater support for various kinds of transaction capital is recommended, including for social and communication networks, for information exchange between small and medium size businesses, for innovation and creative learning by doing, for financial intermediation, for better inter‐party cooperation at the national level, etc.

Social implications

The need for greater social cooperation, including a reduction in discrimination exercised by dominant individuals or groups, arises as a more important pre‐condition for sustainable economic growth than is commonly believed.

Originality/value

Scholars, policymakers, and practitioners might appreciate the more comprehensive interdisciplinary framework for understanding economic growth and development challenges in Eastern Europe, especially the role played by intangible belief systems, social agreements, and levels of cooperation.

Details

International Journal of Social Economics, vol. 38 no. 3
Type: Research Article
ISSN: 0306-8293

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Book part
Publication date: 14 March 2022

Péter Juhász and Ágnes Szabó

Companies over the world faced several risks related to the COVID-19 crisis. However, when quoting those risks, it is common to mix up pandemic effects with general consequences

Abstract

Companies over the world faced several risks related to the COVID-19 crisis. However, when quoting those risks, it is common to mix up pandemic effects with general consequences of work at home or the use of electronic communication channels. At the same time, a lot of indirect effects of the crisis are not straightforward, and some consequences may only turn evident in the long term. This chapter collects different appearances and implications of the risk caused by the epidemic based on literature review, questionnaires, in-depth interviews, and expert panels with a particular emphasis on the findings from Hungary. The authors conclude that risk effects differ little across countries but rather widely across industries and individuals. The risk map presented clarifies critical connections and offers a structured overview for the first time in the literature. A better understanding of the risk effects may assist managers and regulators when another similar crisis would emerge in the future.

Details

International Business in Times of Crisis: Tribute Volume to Geoffrey Jones
Type: Book
ISBN: 978-1-80262-164-8

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Article
Publication date: 13 October 2023

Judit Gárdos, Julia Egyed-Gergely, Anna Horváth, Balázs Pataki, Roza Vajda and András Micsik

The present study is about generating metadata to enhance thematic transparency and facilitate research on interview collections at the Research Documentation Centre, Centre for…

170

Abstract

Purpose

The present study is about generating metadata to enhance thematic transparency and facilitate research on interview collections at the Research Documentation Centre, Centre for Social Sciences (TK KDK) in Budapest. It explores the use of artificial intelligence (AI) in producing, managing and processing social science data and its potential to generate useful metadata to describe the contents of such archives on a large scale.

Design/methodology/approach

The authors combined manual and automated/semi-automated methods of metadata development and curation. The authors developed a suitable domain-oriented taxonomy to classify a large text corpus of semi-structured interviews. To this end, the authors adapted the European Language Social Science Thesaurus (ELSST) to produce a concise, hierarchical structure of topics relevant in social sciences. The authors identified and tested the most promising natural language processing (NLP) tools supporting the Hungarian language. The results of manual and machine coding will be presented in a user interface.

Findings

The study describes how an international social scientific taxonomy can be adapted to a specific local setting and tailored to be used by automated NLP tools. The authors show the potential and limitations of existing and new NLP methods for thematic assignment. The current possibilities of multi-label classification in social scientific metadata assignment are discussed, i.e. the problem of automated selection of relevant labels from a large pool.

Originality/value

Interview materials have not yet been used for building manually annotated training datasets for automated indexing of scientifically relevant topics in a data repository. Comparing various automated-indexing methods, this study shows a possible implementation of a researcher tool supporting custom visualizations and the faceted search of interview collections.

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Article
Publication date: 4 June 2024

Mónika Szente-Varga

This research aims to contribute to History of Education Studies as well as to New Cold War Studies, by examining a Reactor Technology Specialist Engineer program, launched in…

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Abstract

Purpose

This research aims to contribute to History of Education Studies as well as to New Cold War Studies, by examining a Reactor Technology Specialist Engineer program, launched in Hungary three times in the 1980s for Cuban nuclear engineers, graduates of the University of Havana.

Design/methodology/approach

The institutional setting, the content of the program, the teaching staff, the students, and the outcomes are studied. The factors that motivated the birth of this special program are examined, including the following areas; in what ways it was different from the courses in which foreign students participated in Hungary; what its strengths and weaknesses were; how we can learn from this past experience and what relevance it has for the present.

Findings

The analysis – carried out within the context of Cuban–Hungarian relations in the Cold War – demonstrates that these two satellite countries used the fields of science and education to widen their international possibilities and at the same time to reinforce their national interests by cooperating with each other.

Originality/value

The investigation is based on archival sources, university yearbooks and journals as well as contemporary Hungarian press. Written sources were complemented by interviews with Cuban students and Hungarian teaching staff, thus providing a personal perspective, balancing official views.

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