Search results

1 – 5 of 5
Article
Publication date: 4 September 2017

Werner Renhart, Oszkár Bíró, Christian Magele, Kurt Preis and Alexander Rabel

The purpose of this paper is the modelling and estimation of inrush currents while energising power devices under no load conditions. An analytical representation of the nonlinear…

Abstract

Purpose

The purpose of this paper is the modelling and estimation of inrush currents while energising power devices under no load conditions. An analytical representation of the nonlinear B-H curve serves for considering the hysteresis behaviour in the numerical model.

Design/methodology/approach

The model is implemented into a standard finite element formulation to compute transient problems.

Findings

Inrush currents behave like faults in power distribution facilities. Its prior estimation helps to distinguish between operating conditions and faults.

Research limitations/implications

The magnetic cores may become extremely magnetised. At such high material saturations, the material characteristics are not measurable accurately. Hence, the results depend on the extrapolation of the B-H curves.

Originality/value

The use of first-order reversal curves within the major hysteresis loops helps in a convenient way to estimate peak and shape of the inrush currents.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 36 no. 5
Type: Research Article
ISSN: 0332-1649

Keywords

Book part
Publication date: 8 November 2003

Timothy T Schwartz

This article assesses pronatalism in the non-industrialized Caribbean in light of contributions that children make to household production. The place that the economic utility of…

Abstract

This article assesses pronatalism in the non-industrialized Caribbean in light of contributions that children make to household production. The place that the economic utility of children has in determining pronatal attitudes and behavior has been increasingly neglected by social scientists. This trend is especially unwarranted in regard to the traditional Caribbean. As an example, it is shown that the primary reason farmers in Jean Rabel, Haiti, are in favor of high birth rates and reject contraceptives is because the farmers conceptualize children as necessary to their economic survival.

Details

Anthropological Perspectives on Economic Development and Integration
Type: Book
ISBN: 978-0-76231-071-5

Article
Publication date: 12 October 2020

Igor Velkavrh, Florian Ausserer, Stefan Klien, Joel Voyer, Georg Vorlaufer and Alexander Abbrederis

During the production of cardboard food cans, the packaging bottom and the cylindrical wall are joined in the seaming process. In order to achieve a high-quality, crack-free…

Abstract

Purpose

During the production of cardboard food cans, the packaging bottom and the cylindrical wall are joined in the seaming process. In order to achieve a high-quality, crack-free surface of the cardboard seam, low friction between the seaming chuck and the cardboard must be ensured. The goal of this study was to minimise the friction between the seaming chuck and the cardboard can surface.

Design/methodology/approach

Tribological properties of the seaming chuck were optimised by adjusting its material properties, surface topography and surface energy followed by measurements of the resulting friction response in sliding contact with a representative paper sample.

Findings

A strong correlation between the surface free energies of the tribological samples and their measured coefficients of friction was observed, indicating that in tribological tests, adhesion was the dominating friction mechanism. Furthermore, the fact that the smoother samples yielded higher friction values than the rougher ones is most likely also correlated with the higher adhesion of the smoother samples originating from their larger contact area.

Research limitations/implications

The existing results indicate that for tribological optimisation of paper and cardboard contacts primarily the adhesive friction component should be considered – by either reducing the surface free energy of the counter-body or optimising its surface topography.

Practical implications

By applying the selected solution concept, a friction reduction of more than 50% as compared to the benchmark was achieved.

Originality/value

The present study provides a guideline for tribological optimisation of paper and cardboard contacts.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2020-0064/

Details

Industrial Lubrication and Tribology, vol. 72 no. 8
Type: Research Article
ISSN: 0036-8792

Keywords

Article
Publication date: 21 March 2008

Alexander J. Bělohlávek

The applicable jurisdiction for insolvency proceedings, as provided by the Regulation (EC) No 1346/2000 on insolvency proceedings, is the court of the Member State where the…

Abstract

Purpose

The applicable jurisdiction for insolvency proceedings, as provided by the Regulation (EC) No 1346/2000 on insolvency proceedings, is the court of the Member State where the debtor's center of main interest (COMI) is located (Article 3(1)). The Regulation, however, does not provide a comprehensive definition of the COMI. This paper seeks to explore the meaning and developments behind the meaning of COMI as influenced by judicial reasoning and conflicts across Member States.

Design/methodology/approach

The study centres around the emerging jurisprudence and analyses case law across Member States in order to draw conclusions on the meaning of COMI and the emerging concepts. Extensive consideration of statutory interpretation, case reports and judicial comment is present in order to inform and develop conclusions.

Findings

In the absence of a definition it appears that the only relevant European guidance emerges from recital 13 and Article 3 (1). With little guidance in the Regulation, it has therefore been left to national courts to decide how the notion of COMI should be interpreted. Determining the COMI has emerged as one of the most controversial aspect and the principle point of legal conflict, with some highly debated cases within member states’ courts. On the basis of the case law, it is suggested that the interpretation of COMI is more flexible in UK and Italian courts. The approach adopted in continental Europe is referred to as the “centre of operations approach”, i.e. the debtor's COMI has to be determined by the place where he is “ascertainable by third parties”. The Anglo Saxon approach, on the other hand, is known as the “mind of management approach”, i.e. the debtor's COMI must be situated where decisions are actually made. The latter seems to enjoy a more practical and accessible approach.

Originality/value

Not only will the findings assist those seeking to understand the process and COMI requirements across member states but it will also assist those researchers seeking to understanding the comparative and conflict of law barriers to pan‐European insolvency proceedings.

Details

International Journal of Law and Management, vol. 50 no. 2
Type: Research Article
ISSN: 1754-243X

Keywords

Article
Publication date: 23 June 2021

Sherena Sheng Huang

The UK authority published its first regulatory guidance on crypto-assets in July 2019. This paper aims to critically evaluate the effectiveness of the crypto-asset regulation in…

2273

Abstract

Purpose

The UK authority published its first regulatory guidance on crypto-assets in July 2019. This paper aims to critically evaluate the effectiveness of the crypto-asset regulation in the UK and the consistency of the existing regulatory scheme.

Design/methodology/approach

This paper adopts comparative methods to carry out the analysis. The paper begins by elaborating the development of crypto-assets alongside the financial innovation in the world and pinpointing the core Acts and Regulations applied to crypto-assets in the UK. The paper also discusses a court case in the EU to highlight an argument among legal professions concerning crypto-assets classification.

Findings

Through carefully analysing relevant primary and secondary legislation of the UK and EU, this paper identifies some unclarified issues in the regulatory framework and discovers three flaws in the regulatory system. The paper concludes that the effectiveness of the current regulatory scheme is poor and room for improvement exists.

Originality/value

The paper provides the first review and a thorough analysis of the Laws and Acts applied to the crypto-asset regulation in the UK. It also calls on a simpler and clearer regulatory scheme from the perspectives of market participants and consumers. The discovered issues in the crypto-asset regulation in the UK may urge authorities to improve the existing regulatory frameworks and legal provisions.

Details

Journal of Financial Regulation and Compliance, vol. 29 no. 3
Type: Research Article
ISSN: 1358-1988

Keywords

1 – 5 of 5