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Article
Publication date: 4 July 2024

Emrah Cetin and Z.Q. Zhu

This study aims to obtain the minimum torque ripple at the maximum average torque for Flux-switching permanent magnet (FSPM) machines.

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Abstract

Purpose

This study aims to obtain the minimum torque ripple at the maximum average torque for Flux-switching permanent magnet (FSPM) machines.

Design/methodology/approach

This paper is about torque performance optimization of the FSPM machines. To achieve that, finite element analysis and genetic algorithm (GA) are used. Five different designs are simulated, optimized and compared on their air gap flux density, back electromotive force, cogging torque, average torque, torque density and torque ripple.

Findings

After the thousands of iterations, its proved that all proposed shaping techniques have potential for reducing torque ripple and cogging torque, with slightly reduced average torque. The best design is the joint stator and rotor shaping, Design V, which results in the lowest torque ripple and cogging torque. The techniques should be applicable to FSPMs with other stator slot/rotor pole number combinations.

Originality/value

In this paper, rotor pole shaping by notching, chamfering and generic shaping, stator tooth shaping and joint shaping techniques are investigated for 12 s/10p FSPM machines. Rotor and stator flanks are optimized separately and jointly, by using finite element analysis and GA for optimization to achieve maximum average torque and minimum torque ripple. Five different design is implemented and compared, respectively.

Details

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

Keywords

Article
Publication date: 14 January 2025

Aaron Cohen and Emrah Özsoy

Cyberloafing has emerged as a significant phenomenon in the modern workplace, largely driven by shifts in work dynamics. Recent discussions suggest that Dark Triad traits may play…

Abstract

Purpose

Cyberloafing has emerged as a significant phenomenon in the modern workplace, largely driven by shifts in work dynamics. Recent discussions suggest that Dark Triad traits may play a critical role in influencing cyberloafing behaviors; however, research exploring these traits in the context of cyberloafing remains limited. The purpose of this paper is to investigate the complex relationship between the Dark Triad personality traits – psychopathy, Machiavellianism and narcissism – and cyberloafing. Additionally, this study examines four other psychological variables and two demographic factors as potential correlates of cyberloafing.

Design/methodology/approach

The survey sample consisted of 155 working adults from the USA who participated via Amazon’s Mechanical Turk (MTurk). All participants were required to be full-time employees (working 35 or more hours per week) and hold MTurk Master qualifications.

Findings

The findings of this study provide credible support for the research hypotheses. While not all Dark Triad traits are linked to cyberloafing, the influence of certain traits is significant enough to draw meaningful conclusions. Specifically, the results of this study showed that Machiavellianism and psychopathy were associated with both forms of cyberloafing: browsing activities and emailing activities. However, narcissism was not related to any form of cyberloafing. Additionally, pay satisfaction and social media addiction were positively related to both forms of cyberloafing, while age was negatively related.

Research limitations/implications

This paper addresses several limitations, suggests avenues for future research and outlines practical implications for organizations aiming to mitigate the adverse effects of cyberloafing.

Originality/value

Cyberloafing – engaging in non-work-related online activities during work hours – has gained increasing attention because of its potential to disrupt productivity and organizational functioning. However, limited research has explored this important behavior in depth. Building on contemporary studies, this study investigates the underlying mechanisms and potential implications of how Dark Triad traits may either encourage or mitigate cyberloafing.

Details

Management Research Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2040-8269

Keywords

Book part
Publication date: 29 November 2019

Emrah Ozkul, Hakan Boz, Bilsen Bilgili and Erdogan Koc

This chapter explains the role and potential of colour and lighting as two important elements of the service atmosphere in tourism and hospitality service encounters. The chapter…

Abstract

This chapter explains the role and potential of colour and lighting as two important elements of the service atmosphere in tourism and hospitality service encounters. The chapter first explains the importance of colour and lighting in services from the perspective of customers’ sensory perceptions. Then, the chapter provides examples to demonstrate how psychological/neuro-marketing tools of Eye Tracker and Facial Recognition, Galvanic Skin Response (GSR) and Heart Rate (HR) can be used to understand the role of colour and lighting in customer satisfaction in tourism and hospitality service encounters. Based on this perspective, the study offers recommendations to design service environments in terms of colour and lighting.

Details

Atmospheric Turn in Culture and Tourism: Place, Design and Process Impacts on Customer Behaviour, Marketing and Branding
Type: Book
ISBN: 978-1-83867-070-2

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Book part
Publication date: 11 December 2023

Cenk Murat Koçoğlu, Burak Pinaroğlu and Emrah Yaşarsoy

Globalization, along with its technological developments, has brought important changes and developments in all sectors and led to innovation and modernization. In the tourism…

Abstract

Globalization, along with its technological developments, has brought important changes and developments in all sectors and led to innovation and modernization. In the tourism industry, the concept of smart destination, derived from the concept of smart city, has become widespread to meet the changing needs of tourists. In this context, smart technologies have started to be used in destinations, but more than technology in destinations is needed in terms of sustainability. To ensure sustainability in tourism, these smart technologies must also be eco-friendly. Smart destinations and eco-friendly practices are important for the sustainable development of the tourism industry. The use of technology in destinations can increase sustainability and efficiency, while using eco-friendly practices can protect and preserve the natural environment. In this study, first of all, smart destinations and the characteristics of smart destinations are discussed. Then, smart tourism and related eco-friendly practices are argued. Following this, information about the future of smart destinations is given, and assumptions are mentioned. Afterward, problems and solutions are discussed. Finally, the study has been completed with the conclusion part. The findings of the study revealed that the concept of green especially comes to the fore in smart destinations, that there are studies to prevent all kinds of pollution (air, noise, etc.), and applications such as smart parking systems, smart lighting systems, augmented reality (AR), and virtual reality (VR) are given importance.

Details

Smart Cities for Sustainability
Type: Book
ISBN: 978-1-80455-902-4

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Article
Publication date: 27 May 2024

Emrah Arioglu, Metin Borak and Murat Ocak

This study aims to investigate whether there is a relationship between the religiosity levels of chairpersons’ hometowns and the financial reporting quality of companies.

Abstract

Purpose

This study aims to investigate whether there is a relationship between the religiosity levels of chairpersons’ hometowns and the financial reporting quality of companies.

Design/methodology/approach

Using a unique hand-collected data set obtained from various sources, the authors use ordinary least squares and logistic regressions to test the hypotheses and further implement various methods to address potential issues such as omitted variables, reverse causality and selection bias problems. In addition, the authors control for the religiosity level of chief executive officers’ (CEOs) hometowns. Finally, the authors divide the sample into two subsamples – companies with strong corporate governance and companies with weak corporate governance – to investigate the effect of chairpersons’ hometown religiosity on financial reporting quality under strong or weak corporate governance.

Findings

The findings demonstrate that companies with chairpersons from religious hometowns produce high-quality financial reports. Additional tests, such as the Heckman selection model and instrument variable regression, confirm the robustness of the main results. Controlling for the religiosity level of the CEO’s hometown yields consistent findings with the main results. Finally, additional results indicate that the religiosity levels of chairpersons’ hometowns play a significant role in enhancing financial reporting quality in companies with weak corporate governance.

Practical implications

Companies should consider appointing board members or chairpersons from more religious hometowns, as the empirical results of this study support the positive effects of chairpersons’ hometown religiosity on financial reporting quality.

Originality/value

To the best of the authors’ knowledge, the current study is among the first to demonstrate the relationship between the religiosity level of the chairpersons’ hometown and the financial reporting quality of companies. The study introduces unique hometown religiosity proxies and controls for various variables related to corporate governance, chairperson attributes, company characteristics, and audit firm characteristics.

Details

Managerial Auditing Journal, vol. 39 no. 5
Type: Research Article
ISSN: 0268-6902

Keywords

Article
Publication date: 20 March 2020

Emrah Arioglu

This study aims to investigate whether female directors have an effect on company financial performance in a patriarchal emerging country that has a collectivistic culture with a…

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Abstract

Purpose

This study aims to investigate whether female directors have an effect on company financial performance in a patriarchal emerging country that has a collectivistic culture with a substantial gender equality gap and is characterized with a paternalistic management culture. In addition, it aims to investigate whether the affiliations of female directors matter performance-wise in a setting where the majority of the companies are ultimately controlled by large business groups including families.

Design/methodology/approach

The current study uses a unique hand-collected data set that covers all non-financial public companies quoted at the Borsa Istanbul between the years 2009 and 2017. To investigate the relationships between the presence and ratio of female directors and company financial performance, the current study uses the pooled ordinary least squares method, as well as the firm-fixed effects method to overcome potential omitted variables problems and various generalized method of moments methods to overcome potential reverse causality problems.

Findings

The findings of the current study demonstrate that the presence and percentage of female directors both have a positive effect on company financial performance in a cultural setting where the opposite might be expected. They also present evidence suggesting that the effect becomes larger as the level of the independence of female directors becomes greater.

Originality/value

The current study demonstrates that the presence of female directors on boards has a positive effect on company financial performance, even in a cultural setting that is very different from those of countries where the majority of previous studies on female directors are conducted on. In addition, it demonstrates how company financial performance varies with the level of the affiliation of female directors.

Details

Gender in Management: An International Journal , vol. 35 no. 2
Type: Research Article
ISSN: 1754-2413

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Book part
Publication date: 10 February 2020

Seval Kardeş Selimoğlu and Mehtap Altunel

Along with accounting scandals in the past, academics, researchers, and legislators have focused on fraud. The purpose of this study is to examine postgraduate and doctoral…

Abstract

Along with accounting scandals in the past, academics, researchers, and legislators have focused on fraud. The purpose of this study is to examine postgraduate and doctoral studies, articles, and books about forensic accounting and fraud audit published between the years 2008 and 2018 in Turkey. For this purpose, a total of 96 studies have been examined and 35 of these are master’s theses, 10 of them are PhD theses, 45 of them are articles, and six of them are books. These studies were presented in tables as classified. The studies examined in our research are summarized as year they were published, the author, and the scope of the topic and in terms of results. The conclusions of this study can be summarized as follows: (a) the majority of thesis published about forensic accounting and fraud audit are in 2011 and following years. In addition, most of the theses are focused on forensic accounting review rather than fraud audit. (b) Results in the articles reviewed are in the same direction with theses. (c) There are very few books about fraud audit and forensic accounting. One of them is related to fraud audit, while the rest of them are related to forensic accounting and forensic accounting profession. We suggest extending the scope of the study and making to other countries.

Details

Contemporary Issues in Audit Management and Forensic Accounting
Type: Book
ISBN: 978-1-83867-636-0

Keywords

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