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Article
Publication date: 27 July 2018

Ivan Yatchev, Mehmet Sen, Iosko Balabozov and Ivan Kostov

The purpose of the paper is to clarify the influence of introducing magnetic concentrators on the performance of Hall effect based current sensors and to obtain dependencies of…

163

Abstract

Purpose

The purpose of the paper is to clarify the influence of introducing magnetic concentrators on the performance of Hall effect based current sensors and to obtain dependencies of the sensor characteristics on the conductor position.

Design/methodology/approach

The finite element method and Comsol software are used for analysis of the three-dimensional magnetic field of the constructions of Hall effect based current sensor with different types of magnetic concentrators – closed-core (of rectangular and toroidal type) and open-core of toroidal type – with additional larger air gap. The Hall plate is also included in the model with its real dimensions and the magnetic flux density is obtained by integrating over its volume.

Findings

It has been found that there is dependence of the output signal (proportional to the magnetic flux density) of Hall effect based current sensor with both closed- and open-core magnetic concentrators on the position of the current carrying conductor. Distribution of the magnetic flux density and dependencies of its value in the Hall plate on the conductor position and on the additional air gap have been obtained. Optimization is carried out with respect to the additional air gap and cross-section dimensions of the concentrator.

Originality/value

Estimation of the influence of the introducing magnetic concentrators is made with respect to relationships between the output signal and conductor position for different constructions of the magnetic core of the concentrators.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 37 no. 4
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 January 1992

Colin Lea and Bob Willis

The UK is a leader in the implementation of surface mount technology, and SMARTEX '91 sponsored by the SMART Group is one of only a few shows organised worldwide which is…

24

Abstract

The UK is a leader in the implementation of surface mount technology, and SMARTEX '91 sponsored by the SMART Group is one of only a few shows organised worldwide which is dedicated solely to this field. Perhaps it was not surprising then that this year's three‐day event proved a great success.

Details

Soldering & Surface Mount Technology, vol. 4 no. 1
Type: Research Article
ISSN: 0954-0911

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Article
Publication date: 25 December 2024

Bektas Sari and Gulhan Sen

Disasters are catastrophic events that result in loss of life, injury and significant disruptions to everyday life. Unsustainable poverty, crises and migration policies worsen…

15

Abstract

Purpose

Disasters are catastrophic events that result in loss of life, injury and significant disruptions to everyday life. Unsustainable poverty, crises and migration policies worsen them. This study aimed to evaluate the critical perspectives of G7’s country leaders regarding their national agendas in 2022, focusing on the sustainable development goals (SDGs) and the Sendai Framework for Disaster Risk Reduction (SFDRR).

Design/methodology/approach

This study utilized document analysis, one of the qualitative research methods. Using purposive sampling, we analyzed 20,215 words of X (Twitter) data from G7’s country leaders between January 1 and December 31, 2022, with a thematic approach using MAXQDA qualitative software. MAXQDA applied Code Cloud, Code Matrix Browser, Word Frequencies and MaxMaps Code Models tests. Results are presented based on codes, categories and themes identified during analysis.

Findings

The G7’s country leaders emphasized peace, justice and strong institutions as their SDGs priority. However, it was observed that developed nations often overlooked critical issues such as hunger, quality education and inequality in their agendas in 2022. Based on SFDRR, the leaders addressed crisis response and recovery topics, but it is crucial to note that there is a need for a shift towards proactive measures in their disaster policies. The study also noted limited coverage of migration issues affecting many countries globally. There is an urgent need to address hunger, provide quality education and reduce inequality worldwide.

Research limitations/implications

This study has several limitations: Former Italian Prime Minister Mario Draghi did not have an X (Twitter) account in 2022, and the data only reflect the situation in 2022. Also, simply analyzing statements does not necessarily indicate what these countries support and promote in practice. However, this study could be enhanced by including analyses of funding allocations for projects that target various SDGs and SFDRR objectives. Lastly, this study focused on the strategic policy statements made by representatives of different countries. It does not include tactical and operational disaster management processes, which is a limitation because it is difficult to provide a broader perspective.

Practical implications

Developed countries’ approaches to disaster and development policies are essential for disaster risk reduction strategies. Future analyses of funding allocations for projects targeting various SDGs and SFDRR objectives can lead to practical implications.

Originality/value

The authors present a critical viewpoint on the SDGs and SFDRR perspectives of G7’s country leaders. As developed countries possess significant resources and capabilities, they should set a positive example in the global implementation of disaster policies. Consequently, their annual official statements are a valuable guide for disaster policymakers and practitioners.

Details

Disaster Prevention and Management: An International Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0965-3562

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Article
Publication date: 12 February 2018

Mehmet Altin, Mehmet Ali Koseoglu, Xiaojuan Yu and Arash Riasi

The purpose of this paper is to provide a critical review of the performance management literature in the hospitality and tourism (H/T) industry.

5194

Abstract

Purpose

The purpose of this paper is to provide a critical review of the performance management literature in the hospitality and tourism (H/T) industry.

Design/methodology/approach

The study is conducted through a critical literature review based on three dimensions: progress on ontological and epistemological issues, on the purpose of performance measurement (PM) and on the emerging contexts.

Findings

The progress on the three topics, namely, ontological and epistemological, purpose and emerging context, is addressed. Based on these three issues, the performance management literature in the H/T industry has not had any concrete structure. Few studies have been conducted reviewing the progress on performance criteria in the hotel industry. A research agenda is recommended to build a concrete structure in the field.

Research limitations/implications

This study focused on only leading H/T journals to analyze the progress on the performance management literature in the H/T industry. The findings can help researchers (re)design research agendas to contribute to both mainstream performance management literature and literature related to the H/T industry.

Originality/value

This is one of the first studies highlighting the progress on the performance management literature in hospitality and tourism by considering ontological and epistemological issues, the purpose of PM and the emerging contexts.

Details

International Journal of Contemporary Hospitality Management, vol. 30 no. 2
Type: Research Article
ISSN: 0959-6119

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Article
Publication date: 11 May 2020

Felicity Small, Michael Mehmet and Jodie Kleinschafer

People living with a disability (PWD) are often a marginalized vulnerable group who are economically and socially disadvantaged. This paper aims to explore the implementation of…

596

Abstract

Purpose

People living with a disability (PWD) are often a marginalized vulnerable group who are economically and socially disadvantaged. This paper aims to explore the implementation of new social and financial policy reforms aimed at transforming the disability sector. Using the capabilities approach, the authors explore the experience of carers and evaluate how this sector may have become more exposed and vulnerable as a consequence of the new policy.

Design/methodology/approach

This is a qualitative study with two rounds of semi-structured interviews; at initial-phase (n = 18) and post-phase (n = 14). Thematic analysis was applied to the capabilities and vulnerabilities framework to categorize and analyze the interview data.

Findings

The findings show that there are many ways PWD and carers are experiencing increased levels of vulnerability because of their capabilities. There is evidence of increased vulnerability in the intersections between PWD/carers’ inherent nature, the disruption to vital social relationships and conflicting values and interests of stakeholders and the complexity of situational policy changes.

Practical implications

Practical implications developed from the findings include identifying ways the government can improve its social marketing communication strategies. They also highlight the importance of building effective social support networks and provide guidelines for measuring capacity building to address some of the underlying factors leading to vulnerability.

Originality/value

This paper introduces into social marketing, the three-factor vulnerability framework, which conceptualizes the nature of vulnerability, and examines and evaluates the intersections of these factors in relation to the capabilities approach.

Details

Journal of Social Marketing, vol. 10 no. 4
Type: Research Article
ISSN: 2042-6763

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Article
Publication date: 13 February 2023

Nuh Keleş and Mehmet Pekkaya

The purpose of the study is the evaluation of choosing the determined logistics centers’ (LCs’) locations via Multi-Criteria Decision-Making (MCDM) methods.

296

Abstract

Purpose

The purpose of the study is the evaluation of choosing the determined logistics centers’ (LCs’) locations via Multi-Criteria Decision-Making (MCDM) methods.

Design/methodology/approach

Since there is more than one criterion in the evaluation of LC location, MCDM methods are used. The Entropy and CRiteria Importance Through Intercriteria Correlation (CRITIC) methods are used to determine the main criteria and sub-criteria weights. The Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE) method is used for ranking and evaluating 12 alternatives in Turkey and sensitivity analysis according to the threshold values of criteria and preference functions.

Findings

Possible LC alternatives in Turkey and 12 locations ranked. Changing the criteria weights at a significant level did not affect the ranking results much. In the sensitivity analysis of the criteria for which market data could not be obtained (scored by the experts) it is found that they either made no difference or made little difference in the ranking of the alternatives.

Practical implications

In terms of sustainability, economic factors along with environmental and social dimensions are important criteria for logistics companies and LC. The use of these variables in the LC location selection makes a difference.

Originality/value

This study focuses on LC location selection, via PROMETHEE with evaluated preference functions for criteria, taking into account nine scenarios that use variable criteria weight calculated via different MCDM methods. The results are evaluated by using sensitivity analysis and taking into account the sustainability aspect for LC. Multiple methods have been used effectively together in a way that support each other.

Details

Journal of Advances in Management Research, vol. 20 no. 2
Type: Research Article
ISSN: 0972-7981

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Article
Publication date: 6 January 2021

Mehmet Asutay and Isa Yilmaz

This study aims to theoretically explore and examine the possibility of developing an Islamic social welfare function (ISWF) within the Islamic moral economy (IME) frame by going…

892

Abstract

Purpose

This study aims to theoretically explore and examine the possibility of developing an Islamic social welfare function (ISWF) within the Islamic moral economy (IME) frame by going beyond the traditional fiqhī approach. It focuses on issues of preference ordering and utility through the normative dimension of Islamic ontology, as expressed and articulated within the IME.

Design/methodology/approach

Being a theoretical paper, a conceptual and critical discursive approach is used in this paper.

Findings

To establish an ISWF, a narrow juristic approach remains inadequate; there is a need to integrate the substantive morality to complement the juristic approach to achieve the ihsani process as the ultimate individual objective, which makes an ISWF possible. As the scattered debate on the topic concentrates mainly on the juristic approach, the main contribution of this study is to present a model in which juristic and moralist positions endogenized and augmented to constitute ISWF.

Originality/value

As there is a limited amount of research available on the subject matter, this paper will be an important theoretical contribution. In addition, this study develops an IME approach rather than fiqh-based approach used in the available research, which makes it novel.

Details

International Journal of Islamic and Middle Eastern Finance and Management, vol. 14 no. 3
Type: Research Article
ISSN: 1753-8394

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Article
Publication date: 13 February 2023

Mehmet Altuğ

The purpose of this study was conducted at an enterprise that produces fasteners and is one of the leading companies in the sector in terms of market share. Possible defects in…

359

Abstract

Purpose

The purpose of this study was conducted at an enterprise that produces fasteners and is one of the leading companies in the sector in terms of market share. Possible defects in the coating of bolts and nuts either lead to products being scrapped or all of the coating process being repeated from beginning to end. In both cases, the enterprise faces a waste of time and excessive costs. Through this project, the six sigma theory and its means were effectively used to improve the efficiency and quality management of the company. The selection of the six sigma project has also contributed to the creation of various documents to be used for project screening and evaluation of financial results.

Design/methodology/approach

Six sigma is an optimization strategy that is used to improve the profitability of businesses, avoid waste, scrap and losses, reduce costs and improve the effectiveness of all activities to meet or exceed customers’ needs and expectations. Six sigma’s process improvement model, known as Definition-Measurement-Analysis-Improvement-Control, contributes to the economic and technical achievements of businesses. The normal distribution of a process should be within ±3 sigma of the mean. This represents a scale of 99.7% certainty. However, improving the process through the utilization of the six sigma rule, which accepts normal variabilities of processes twice as strict, will result in an error rate of 3.4 per million instead of 2,700 per million for each product or service.

Findings

Using six sigma practices to reduce the costs associated with low quality and to increase economic added value became a cultural practice. With this, the continuation of six sigma practices throughout the Company was intended. The annual cost reduction achieved with the utilization of six sigma practices can be up to $21,780. When time savings are also considered, a loss reduction of about $30,000 each year can be achieved. The coating thickness efficiency increased from 85% to 95% after the improvements made through the six sigma project. There is a significant increase in the efficiency of coating thickness. In addition, the coating thickness efficiency is also close to the target value of 95%–97%.

Originality/value

The results of the study were optimized with the help of deep learning. The performance of the model created in deep learning was quite close to the actual performance. This result implicates the validity of the improvement work. The results may act as a guide for the use of deep learning in new projects.

Details

International Journal of Lean Six Sigma, vol. 14 no. 7
Type: Research Article
ISSN: 2040-4166

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Article
Publication date: 9 August 2023

Saeedeh Rezaee Vessal, Judith Partouche, Insaf Khelladi, Sylvaine Castellano, Mehmet Orhan and Rossella Sorio

Building on construal level theory and applying the hypothetical distance dimension, this cross-cultural study (individualistic vs collectivistic culture) aims to explore the…

302

Abstract

Purpose

Building on construal level theory and applying the hypothetical distance dimension, this cross-cultural study (individualistic vs collectivistic culture) aims to explore the effects of cause familiarity on individuals' attitudes toward a brand and how cause–brand fit mediates this relationship. Furthermore, this study explores how perceived betrayal moderates the relationship between cause–brand fit and attitude toward a brand.

Design/methodology/approach

A quantitative research design was adopted. Data collection was performed through snowball sampling of French and Turkish participants (N = 455). The collected data were then analyzed using the PROCESS macro for SPSS.

Findings

The results reveal a significant effect of cause familiarity on attitude toward the brand, wherein one's attitude toward fit in a cause–brand alliance serves as a mediator in this relationship. The results also indicate that perceived betrayal moderates the relationship between cause–brand fit and attitude toward a brand. However, when it comes to facing a global pandemic, culture has no significant effect on consumers' perceptions and attitudes toward cause–brand alliances.

Originality/value

This research investigates the enhancement of attitudes toward a brand through an alliance with a familiar cause and explains this relationship via attitudes toward fit in such an alliance. Moreover, it provides novel insights into perceived betrayal as a variable that can lead to a more pronounced relationship between attitude toward fit and attitude toward a brand.

Available. Content available
Book part
Publication date: 16 June 2021

Abstract

Details

Monetary Policy, Islamic Finance, and Islamic Corporate Governance: An International Overview
Type: Book
ISBN: 978-1-80043-786-9

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