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Article
Publication date: 26 March 2024

Abdelmalek Saidoune, Hamza Houassine, Samir Bensaid, Nacera Yassa and Sadia Abbas

This paper aims to investigate the efficacy of teeth flux sensors in detecting, locating and assessing the severity of short-circuit faults in the stator windings of induction…

Abstract

Purpose

This paper aims to investigate the efficacy of teeth flux sensors in detecting, locating and assessing the severity of short-circuit faults in the stator windings of induction machines.

Design/methodology/approach

The experimental study involves inducing short-circuit winding turn variations on the induction machine’s stator and continuously measuring the RMS values across teeth flux sensors. Two crucial steps are taken for machine diagnosis: measurements under load operating conditions for fault detection and measurements under no-load conditions to determine fault location and severity.

Findings

The experimental results demonstrate that the proposed approach using teeth flux sensors is reliable and effective in detecting, locating and evaluating the severity of stator winding faults.

Research limitations/implications

While this study focuses on short-circuit faults, future research could explore other fault types and alternative sensor configurations to enhance the comprehensiveness of fault diagnosis.

Practical implications

The methodology outlined in this paper holds the potential to significantly reduce maintenance time and costs for induction machines, leading to substantial savings for companies.

Originality/value

This research contributes to the field by presenting an innovative approach that uses teeth flux sensors for a comprehensive fault diagnosis in induction machines. The originality lies in the effectiveness of this approach in providing reliable fault detection, location and severity evaluation.

Book part
Publication date: 13 May 2024

Ajay Chandel and Anjali Sharma

Purpose: Since its inception in 1987, the literature on the VUCA that represents the volatile, uncertain, complex, and ambiguous nature of the business environment has…

Abstract

Purpose: Since its inception in 1987, the literature on the VUCA that represents the volatile, uncertain, complex, and ambiguous nature of the business environment has progressively increased. This study systematically evaluates the vast literature on the VUCA world. Since review-based studies have been criticised as biased, this study uniquely amalgamates bibliometric analysis with content analysis, thereby taking a research triangulation discourse.

Need of the Study: This study was conducted to consolidate the literature about the VUCA environment and uncover the foundational and emerging themes for future research agendas.

Design/Methodology/Approach: This study conducts a performance analysis and science mapping of 193 carefully selected articles (using PRISMA) published in various sources during 2012–2023. Articles for the study were procured from the SCOPUS database. While performance analysis focused on analysing publication and citation evolution, thematic evolution, leading publications, country publication analysis, and most relevant authors and sources. On the other hand, science mapping revealed conceptual structures (keyword plus co-occurrence analysis and thematic maps) and intellectual structures (co-authorship analysis). VOSviewer and Biblioshiny (R-tool for comprehensive science mapping) were used for this study’s choice of application.

Findings: This chapter concludes with future research agendas using content analysis of the ‘scope for the future research’ section of selected publications and bibliographic coupling (to unearth emerging themes).

Practical Implications: The work presented in this chapter will help the researchers gain a structured conceptual, intellectual, and social understanding of the vast literature on the VUCA environment.

Details

VUCA and Other Analytics in Business Resilience, Part B
Type: Book
ISBN: 978-1-83753-199-8

Keywords

Article
Publication date: 14 August 2023

Sohail Ahmad, Aisha Naz Ansari, Saman Khawaja and Sadia Muzaffar Bhutta

This paper aims to explore contribution of informal learning space - Research Cafe - to enrich research learning experiences of graduate students. Developing strong research…

Abstract

Purpose

This paper aims to explore contribution of informal learning space - Research Cafe - to enrich research learning experiences of graduate students. Developing strong research skills among graduate students is a prime focus of higher education around the world. Thereby, universities are striving to maximise opportunities that can foster and enrich students’ learning experiences of research; however, the focus is mostly confined to formal opportunities such as research method courses and thesis writing. The provision of informal learning spaces has been recognised as a useful tool for fostering research learning experiences of graduates. This reflective paper is among a few focusing on a model of student-led informal learning space for enriching research experiences in higher education in the context of Pakistan.

Design/methodology/approach

This paper uses a reflective approach to generate a metalogue. The research experiences shared by the participants were further reflected by the authors after each research café session. The authors then shared their collective metacognitive reflections with each other, generating a metalogue, which was used as the data set. The metalogue was analysed thematically to generate themes.

Findings

Findings reveal that the research café is an informal space to promote academic socialisation by providing a conducive environment, peer support and informal supervision opportunities to foster the research learning experiences of graduate students. Importantly, the model presented in this paper provides a complimentary pathway for boosting learning experiences.

Research limitations/implications

This paper would be useful for graduate students, faculty and university manager to acknowledge the potential of informal learning spaces in promoting research learning experiences. This paper highlights opportunities for replication, and further empirical research are needed to establish the efficacy of research café.

Originality/value

This study contributes to the global debate about graduate research learning experiences through informal learning space, which is yet to be explored, particularly in developing contexts like Pakistan. The idea of the research café is original, as it was conceived keeping in consideration the contextual and cultural aspects. The methodology used in this paper was specifically derived which can be replicated by other researchers.

Details

Studies in Graduate and Postdoctoral Education, vol. 14 no. 3
Type: Research Article
ISSN: 2398-4686

Keywords

Article
Publication date: 3 September 2021

Dirk De Clercq, Tasneem Fatima and Sadia Jahanzeb

This study seeks to unpack the relationship between employees' exposure to workplace bullying and their turnover intentions, with a particular focus on the possible mediating role…

Abstract

Purpose

This study seeks to unpack the relationship between employees' exposure to workplace bullying and their turnover intentions, with a particular focus on the possible mediating role of perceived organizational politics and moderating role of creativity.

Design/methodology/approach

The hypotheses are tested with multi-source, multi-wave data collected from employees and their peers in various organizations.

Findings

Workplace bullying spurs turnover intentions because employees believe they operate in strongly politicized organizational environments. This mediating role of perceived organizational politics is mitigated to the extent that employees can draw from their creative skills though.

Practical implications

For managers, this study pinpoints a critical reason – employees perceive that they operate in an organizational climate that endorses dysfunctional politics – by which bullying behaviors stimulate desires to leave the organization. It also reveals how this process might be contained by spurring employees' creativity.

Originality/value

This study provides novel insights into the process that underlies the connection between workplace bullying and quitting intentions by revealing the hitherto overlooked roles of employees' beliefs about dysfunctional politics and their own creativity levels.

Details

Personnel Review, vol. 51 no. 9
Type: Research Article
ISSN: 0048-3486

Keywords

Article
Publication date: 16 May 2023

Sadia Aziz and Muhammad Abdullah Khan Niazi

Tourists’ irresponsible behaviours (e.g. damaging flowers, writing and painting on the walls and throwing waste material in the water and around the sea site) damage the coastal…

Abstract

Purpose

Tourists’ irresponsible behaviours (e.g. damaging flowers, writing and painting on the walls and throwing waste material in the water and around the sea site) damage the coastal environment. The irresponsible behaviour of tourists has raised concerns about the sustainability of the coastal tourism environment. The purpose of this study is to identify and explain the behavioural patterns of tourists that can influence the environmentally responsible behaviours (ERBs) of tourists, particularly in the context of coastal tourism. The study aims to provide a theoretical and practical explanation of destination image and perceived destination value (PDV) in shaping ERB with the mediating role of destination social responsibility (DSR) among tourists at the coastal touring destination.

Design/methodology/approach

The study used a quantitative research design and data were gathered from the five beaches in Karachi. Structured equation model was used to analyse the direct and mediating effect while stepwise regression was used to analyse the moderating effect of DSR. The results of the direct effect showed that cognitive image has a significant effect on the affective image, while the insignificant effect on conative image and ERB. While the affective image has a significant effect on conative and ERB, and finally, results showed a significant effect of conative image on ERB. Results of the study revealed that PDV significantly mediated the relationship between cognitive, affective and conative destination image and ERB. Finally, the study’s results revealed that DSR has significantly moderated the relationship between affective, conative destination image, PDV and ERB.

Findings

The results are divided into three categories, direct effect, mediating effect and moderating effect. The results of the direct effect showed that cognitive image has a significant effect on the affective image, while the insignificant effect on conative image and ERB. While affective image has a significant effect on conative and ERB, and finally, results showed a significant effect of conative image on ERB. It is found in the results that PDV significantly mediated the relationship between cognitive, affective and conative destination image and ERB. Finally, the study’s results revealed that DSR has significantly moderated the relationship between affective, conative destination image, PDV and ERB.

Research limitations/implications

First, data has been collected from a single geographic area of Pakistan. Therefore, cross-country data are required to compare the ERB of tourists. Second, only local respondents are considered in the study; future studies may include foreign tourists as well. Finally, data has been collected during one month in summer, which may have measured the experience of only summer. The respondent may have different perceived values and destination images during winter. The future study may split data collection into summer and winter to cover diverse perceptions of tourists.

Social implications

It is almost impossible for coastal destinations to achieve a competitive advantage without attaining sustainable coastal environments. Clean and green beaches and responsible behaviour towards marine mammals can only be achieved through tourists’ ERB. This study has major contributions towards society by reserving the natural environment of coastal areas.

Originality/value

This research will significantly contribute to the existing literature by extending the ERB knowledge through the theoretical lens of cognitive-affective-conative models and social expectancy theory. Moreover, PDV as a mediator and DSR as a moderator will enhance the understanding of ERB and extend the existing literature. Further research has provided a strong understanding of how cognitive, effective and conative image helps in influencing the ERB of tourists. Moreover, research will benefit destination managers and policymakers to enhance the image and perceived value of touring destinations. Finally, this study is a unique attempt to present a comprehensive model which could be applicable to diverse situations and areas.

Details

Social Responsibility Journal, vol. 19 no. 10
Type: Research Article
ISSN: 1747-1117

Keywords

Article
Publication date: 4 June 2019

Muhammad Asrar-ul-Haq, Hafiz Yasir Ali, Sadia Anwar, Anam Iqbal, Muhammad Badr Iqbal, Nazia Suleman, Iqbal Sadiq and Muhammad Haris-ul-Mahasbi

Organizational politics has been a topic of conceptual and empirical interest for researchers and practitioners for many years. The purpose of this paper is to examine the…

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Abstract

Purpose

Organizational politics has been a topic of conceptual and empirical interest for researchers and practitioners for many years. The purpose of this paper is to examine the relationship between organizational politics and employee work outcomes in educational institutions. In addition, this paper also aims to assess the moderating role of social capital.

Design/methodology/approach

Employee perceptions about organizational politics and its impact on their work outcomes have been assessed empirically with a sample of 270 full-time employees in higher education institutions of Pakistan. The data have been collected from faculty members of five universities of Pakistan using survey method. SPSS and AMOS have been used to analyze the data and SEM has been used to test the hypotheses.

Findings

The results indicate a moderating effect of social capital on the relationship between perceived organizational politics and employee outcomes, and the most significant employee outcomes are job stress, job satisfaction and turnover intentions. The findings of the study support the view that organizational politics has negative association with employee job stress and turnover intentions.

Research limitations/implications

Higher education sector in Pakistan is facing certain challenges, which affect talent retention. The findings of this study will help the administration of higher education institutions to develop effective strategies to cope with the challenges of organizational politics, such as motivation, satisfaction and retention of their employees.

Originality/value

The study adds to the literature on organizational politics by highlighting and validating its adverse effects on employee work outcomes in the context of Pakistani higher education.

Details

South Asian Journal of Business Studies, vol. 8 no. 2
Type: Research Article
ISSN: 2398-628X

Keywords

Article
Publication date: 27 November 2020

Sayeda Zeenat Maryam, Fouzia Ali, Mehvish Rizvi and Sadia Farooq

This paper aims to demonstrate the turnover intentions (TIs) among the academic faculty of higher education institutions (HEIs) in Pakistan through their motivation and commitment…

Abstract

Purpose

This paper aims to demonstrate the turnover intentions (TIs) among the academic faculty of higher education institutions (HEIs) in Pakistan through their motivation and commitment toward the concerned institution. It inspects the relationship of dimensions of motivation including an absence of motivation (AM), extrinsic motivation (ExM) and intrinsic motivation (InM) with the dimensions of commitment including affective commitment (AC), continuous commitment (CC) and normative commitment (NC) and finally the academic's TIs.

Design/methodology/approach

The paper used the self-determination theory (SDT), the theory of organizational commitment (OC) and the theory of planned behavior (TPB) for its proposed model. A sample of 500 academics, working under higher education commission recognized public and private universities in Punjab Pakistan. A structural equation modeling (SEM) conducted for analysis using an algorithm, bootstrapping and blindfolding techniques.

Findings

The outcomes of the research are attention-grabbing, as no direct relationship has been observed between the dimensions of motivation and TIs except InM. The dimensions of commitments are mediating the relationship between motivation and TIs with high significance value. The results reveal a significant adverse effect on TIs through two dimensions of commitment.

Research limitations/implications

As it is the case of a developing country like Pakistan therefore the finding cannot generalize to developed countries.

Practical implications

The findings of this research may lead the policymakers and practitioners of HEIs and controlling body to retain their competent teachers.

Social implications

This research can help the private sector to develop strategies about the retention of their competent teachers within the institutions that not just value the institution but also will be much beneficial for the students and society.

Originality/value

This paper is identifying how motivation is related to TIs and the role of commitment in it at HEIs. Still, no research has been conducted considering this avenue of SDT, OC and TPB

Details

International Journal of Educational Management, vol. 35 no. 2
Type: Research Article
ISSN: 0951-354X

Keywords

Article
Publication date: 16 November 2023

Afaf Khalid, Usman Raja, Abdur Rahman Malik and Sadia Jahanzeb

Despite the extent of working from home (WFH) during the coronavirus disease 2019 (COVID-19) pandemic, research exploring its positive or negative effects is exceptionally scarce…

Abstract

Purpose

Despite the extent of working from home (WFH) during the coronavirus disease 2019 (COVID-19) pandemic, research exploring its positive or negative effects is exceptionally scarce. Unlike the traditional positive view of WFH, the authors hypothesize that WFH during the COVID-19 pandemic has triggered work–life imbalance and work–family conflict (WFC) for employees. Furthermore, the authors suggest that work–life imbalance and WFC elicit burnout in employees.

Design/methodology/approach

Using a time-lagged design, the authors collected data in three waves during the peak of the first wave of the COVID-19 pandemic to test the authors' hypotheses.

Findings

Overall, the authors found good support for the proposed hypotheses. WFH had a significant positive relationship with burnout. WFH was negatively related to work–life balance (WLB) and positively related to WFC. Both WLB and WFC mediated the effects of WFH on burnout.

Practical implications

This is one of the earliest studies to explore the harmful effects of involuntary WFH and identify the channels through which these effects are transmitted. The practical implications can help managers deal with the adverse effects of WFH during and after the COVID-19 crisis.

Originality/value

The authors' results significantly contribute to the research on WFH and burnout and present important implications for practice and future research.

Details

Journal of Organizational Effectiveness: People and Performance, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2051-6614

Keywords

Article
Publication date: 13 December 2018

Sadia Rashid, Tasawar Hayat, Sumaira Qayyum, Muhammad Ayub and Ahmed Alsaedi

The purpose of this study is to study flow caused by rotating frame. Effects of Darcy–Forchheimer and porous medium are considered to study velocity field. Concentration field is…

Abstract

Purpose

The purpose of this study is to study flow caused by rotating frame. Effects of Darcy–Forchheimer and porous medium are considered to study velocity field. Concentration field is discussed in presence of activation energy. Darcy–Forchheimer in a rotating frame is examined. Flow because of stretched sheet fills the porous space. Binary chemical reaction is entertained. Resulting system is numerically solved. The plots are arranged for rotational parameter, porosity parameter, coefficients of inertia, Prandtl number and Schmidt number. It is revealed that rotation on velocity has opposite effects when compared with temperature and concentration distributions. Skin friction coefficients and local Nusselt and Sherwood numbers are numerically discussed.

Design/methodology/approach

Darcy–Forchheimer in a rotating frame is examined. Flow because of stretched sheet fills the porous space. Binary chemical reaction is entertained. Resulting system is numerically solved. The plots are arranged for rotational parameter, porosity parameter, coefficients of inertia, Prandtl number and Schmidt number. It is revealed that rotation on velocity has opposite effects when compared with temperature and concentration distributions. Skin friction coefficients and local Nusselt and Sherwood numbers are numerically discussed.

Findings

The major findings here are as follows: an addition in porosity λ causes decay in velocity f′(η) while there is opposite behavior for temperature θ(η) and concentration ϕ(η) fields. θ and ϕ via β have similar results qualitatively. There is an opposite behavior of Pr on temperature and concentration. Inverse behavior of λ on ϕ and wall mass flux is noted. Concentration ϕ is decreasing function of reaction rate constant σ. Skin friction coefficient has similar qualitative results for λ and β. Temperature gradient −θ(0) is decreased by λ and β.

Originality/value

Here, the authors are interested to investigate rotating flow in a porous space. Dissipation and radiation effects are neglected. Effects of activation energy are studied. This work is not done yet in literature.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 29 no. 3
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 8 August 2019

Sadia Rashid, Tasawar Hayat, Sumaira Qayyum, Muhammad Ayub and Ahmed Alsaedi

The purpose of this paper is to examine outcome of activation energy in rotating flow of an Oldroyd-B nano liquid.

Abstract

Purpose

The purpose of this paper is to examine outcome of activation energy in rotating flow of an Oldroyd-B nano liquid.

Design/methodology/approach

Flow is generated due to stretched surface. Binary chemical reaction is studied. Brownian and thermophoresis effects are considered. The system of nonlinear ordinary differential equations is derived. Convergent series solutions are obtained by homotopy analysis method. The resulting expressions for velocities, temperature and concentration are computed for different embedded parameters.

Findings

It is found that velocities f′ and g  have decreasing effect when rotation parameter is enhanced. Brownian and thermophoresis are increasing functions of temperature and concentration. The physical quantities are sketched and discussed numerically. Concentration and temperature fields show decreasing behavior via Brownian and thermophoresis parameters.

Originality/value

Authors investigate the Rotating flow of Oldroyd-B nano fluid with chemical reactions. This work is not done yet in literature.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 29 no. 8
Type: Research Article
ISSN: 0961-5539

Keywords

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