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Article
Publication date: 14 September 2010

Khurshid Hafiz, Gaurav Nanda and Narayan C. Kar

In order to assess the performance of an induction generator in standalone wind power application, it is imperative that mathematical models are developed that accurately…

Abstract

Purpose

In order to assess the performance of an induction generator in standalone wind power application, it is imperative that mathematical models are developed that accurately represent the system and take into account various electromagnetic influences such as skin effect. The purpose of this paper is to utilize mathematical models to study the transient and steady‐state behaviour of the self‐excited induction generator (SEIG), in one case with an aluminum rotor, in another case, with a copper rotor, under various load conditions while taking the above factor into account.

Design/methodology/approach

Mathematical models of a SEIG in the d‐q axis frame have been developed based on the generalized machine theory. A relationship between the mutual inductance and the magnetizing current of the machine has been presented. The rotor impedances have been customized to include skin effect. Using these relations, the model has been extended to include the saturation and skin effects. In order to verify the accuracy of the models, numerical and experimental investigations have been carried out on two 7.5 hp aluminum‐rotor and copper‐rotor SEIGs.

Findings

It was found that the model that takes into account the saturation and skin effects produces numerical results that closely match experimental values for both the machines.

Originality/value

This paper describes how a model of an SEIG considering saturation and skin effect has been developed and applied to aluminum‐ and copper‐rotor machines of similar power ratings to analyze their performance.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 29 no. 5
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 13 October 2022

Yunis Ali Ahmed, Hafiz Muhammad Faisal Shehzad, Muhammad Mahboob Khurshid, Omayma Husain Abbas Hassan, Samah Abdelsalam Abdalla and Nashat Alrefai

Building information modelling (BIM) has transformed the traditional practices of the Architecture, Engineering and Construction (AEC) industry. BIM creates a collaborative…

Abstract

Purpose

Building information modelling (BIM) has transformed the traditional practices of the Architecture, Engineering and Construction (AEC) industry. BIM creates a collaborative digital representation of built environment data. Competitive advantage can be achieved with collaborative project delivery and rich information modelling. Despite the abundant benefits, BIM’s adoption in the AEC is susceptible to confrontation. A substantial impediment to BIM adoption often cited is data interoperability. Other facets of interoperability got limited attention. Other academic areas, including information systems, discuss the interoperability construct ahead of data interoperability. These interoperability factors have yet to be surveyed in the AEC industry. This study aims to investigate the effect of interoperability factors on BIM adoption and develop a comprehensive BIM adoption model.

Design/methodology/approach

The theoretical foundations of the proposed model are based on the European interoperability framework (EIF) and technology, organization, environment framework (TOE). Quantitative data collection from construction firms is gathered. The model has been thoroughly examined and validated using partial least squares structural equation modelling in SmartPLS software.

Findings

The study’s findings indicate that relative advantage, top management support, government support, organizational readiness and regulation support are determinants of BIM adoption. Financial constraints, complexity, lack of technical interoperability, semantic interoperability, organizational interoperability and uncertainty are barriers to BIM adoption. However, compatibility, competitive pressure and legal interoperability do not affect BIM adoption.

Practical implications

Finally, this study provides recommendations containing the essential technological, organizational, environmental and interoperability factors that AEC stakeholders can address to enhance BIM adoption.

Originality/value

To the best of the authors’ knowledge, this paper is one of the first studies to combine TOE and EIF in a single research model. This research provides empirical evidence for using the proposed model as a guide to promoting BIM adoption. As a result, the highlighted determinants can assist organizations in developing and executing successful policies that support BIM adoption in the AEC industry.

Details

Construction Innovation , vol. 24 no. 2
Type: Research Article
ISSN: 1471-4175

Keywords

Article
Publication date: 20 April 2022

Talat Islam, Aiman Asif, Saqib Jamil and Hafiz Fawad Ali

This study aims to investigate how abusive supervisor affects knowledge hiding (KH). Specifically, this study investigates employee silence as a mediating mechanism between…

1004

Abstract

Purpose

This study aims to investigate how abusive supervisor affects knowledge hiding (KH). Specifically, this study investigates employee silence as a mediating mechanism between abusive supervision and employees’ KH. Further, psychological ownership is examined as a buffer between abusive supervision and employee silence.

Design/methodology/approach

KH has become a major issue for both manufacturing and service sectors. Therefore, this study collected data from 322 employees working in manufacturing and service sectors through “Google Forms” during COVID-19. The respondents were contacted through LinkedIn platform between January and July 2021.

Findings

This study noted that when employees working in high-power distance cultures perceive their leaders/supervisors as abusive, they avoid confrontation and engage in silent behavior, which positively affects their KH behavior. However, employees with a high level of psychological ownership are less likely to respond to their abusive supervisors through silence because such employees feel a greater sense of belongingness and prefer to benefit their organization.

Research limitations/implications

This study used a cross-sectional design that restricts causality. However, the findings of this study suggest management to focus on leadership style to minimize KH at the workplace.

Originality/value

To the best of the authors’ knowledge, this study is the first to explore the underlying mechanism (employee silence) and boundary condition (psychological ownership) to explain the association between abusive supervision and KH.

Details

VINE Journal of Information and Knowledge Management Systems, vol. 54 no. 4
Type: Research Article
ISSN: 2059-5891

Keywords

Article
Publication date: 2 August 2018

Mazni Abdullah and Noor Sharoja Sapiei

The purpose of this paper is to examine the influence of religiosity, gender and Islamic educational background of Muslims on zakat compliance. It also aims to identify which…

2358

Abstract

Purpose

The purpose of this paper is to examine the influence of religiosity, gender and Islamic educational background of Muslims on zakat compliance. It also aims to identify which dimensions of religiosity are significantly related to zakat compliance.

Design/methodology/approach

The study uses a self-administered questionnaire that was distributed to working Muslims individuals in Klang Valley, Malaysia. Analysis of the data was based on 690 usable questionnaires.

Findings

The findings show that religiosity had a significant influence on zakat compliance and three dimensions of religiosity, namely obligation, virtues and vices, and optional ritual, were significantly related to zakat compliance. Gender was also significantly related to zakat compliance, but in a negative direction, suggesting that Muslim working females are less compliant to zakat obligations compared to their male counterparts. It is found that formal Islamic educational background had no significant influence on zakat compliance.

Practical implications

Given the importance of zakat collection to the growth of the economy and society, the findings of this paper might provide some insights to Muslim-majority countries and zakat institutions which areas require more attention to encourage zakat payment among Muslims.

Originality/value

Compared to prior zakat studies, the findings of this study were derived from a larger sample size of Muslim working respondents. Furthermore, this study also identifies which dimensions of religiosity are significantly related to zakat compliance. Hence this study enriches the scarce literature on zakat and religiosity.

Details

International Journal of Social Economics, vol. 45 no. 8
Type: Research Article
ISSN: 0306-8293

Keywords

Article
Publication date: 1 August 1997

Hafiz Muhammad Khalid, Khalid Mahmood and Jonathan Willson

Surveys the status of cataloguing practice in university libraries in three Asian developing countries, Pakistan, Malaysia, and Saudi Arabia. Examines the extent of the usage of…

1083

Abstract

Surveys the status of cataloguing practice in university libraries in three Asian developing countries, Pakistan, Malaysia, and Saudi Arabia. Examines the extent of the usage of international cataloguing tools like cataloguing codes (AACR, ISBD), classification schemes (DDC, LC) and subject heading lists (Sears, LCSH). Finds that there is an overall uniformity in the use of technical tools. There is a trend towards automation of cataloguing services. With the help of new technology, more access points for catalogue searching have been made available. Online catalogues are also replacing all traditional catalogue forms, i.e. Card, Printed, and Microform. Survey findings show that, in using new information technology in technical services, Malaysian university libraries are more advanced than those of Pakistan and Saudi Arabia.

Details

Library Review, vol. 46 no. 5
Type: Research Article
ISSN: 0024-2535

Keywords

Article
Publication date: 1 February 1998

Syed Jalaluddin Haider

Surveying the growth of public libraries in Pakistan prior to and following independence, this paper shows that development has been at best a piecemeal affair and at worst…

2825

Abstract

Surveying the growth of public libraries in Pakistan prior to and following independence, this paper shows that development has been at best a piecemeal affair and at worst non‐existent. Although some libraries seek to fulfil their goal of providing quality service to the public, most are hampered by overwhelming economic, social and educational problems. Notwithstanding this gloomy scenario, it is suggested that library planning based on awareness of indigenous needs and with realistic aims can achieve far more than has been the case in the past. Six factors are suggested as essential in any effective public library planning process in Pakistan; these may be valid in other developing countries as well.

Details

Asian Libraries, vol. 7 no. 2
Type: Research Article
ISSN: 1017-6748

Keywords

Open Access
Article
Publication date: 8 July 2021

Ariful Islam, Nur Fadiah Mohd Zawawi and Sazali Abd Wahab

For Bangladeshi small and medium enterprises (SMEs), the COVID-19 economic shock is remarkable in both its complexity and intensity. SMEs need systemic inspiration to solve the…

4999

Abstract

Purpose

For Bangladeshi small and medium enterprises (SMEs), the COVID-19 economic shock is remarkable in both its complexity and intensity. SMEs need systemic inspiration to solve the crisis, aligned with a moral and authentic approach that serves both the leader and the follower’s interests. This study aims to conceptualize the innovation-focused success method of SMEs before and after the pandemic to manage the crisis by establishing spiritual leadership based on Islamic perspectives.

Design/methodology/approach

To discuss the impact of spiritual leadership on innovation-focused SME performance configuration through the lens of a crisis, a comprehensive literature study has been carried out in which over 360 articles are read and reviewed by the authors. It has also established the reliability and validity of literature analysis. Also, a qualitative investigation has been used to support the direction of the study.

Findings

For a subsequent process of scientific deployment and evaluation of its execution, a new applied strategic innovation-focused SME success configuration through spiritual leadership development is made available. The primary value of this paradigm is the potential to calculate and treat the aspects of spiritual leadership obtained from Islamic ideas.

Research limitations/implications

Prior analytical or empirical attempts from multiple viewpoints are subsequently needed to inquire about the proposed conceptualization.

Practical implications

Among the realistic consequences of this analysis is that while a number of leadership paradigms have been embraced by a broad body of leadership studies, the findings indicate that this paper should pay heed to the influential spiritual style of leadership, taking into account Islamic perspectives on the context of crisis. Therefore, Bangladeshi SMEs need to develop and run leadership training programs focused on the Islamic viewpoint of spirituality to encourage the actions of leaders during and after crises.

Social implications

The legal and moral values of the society would ultimately be upgraded from this conceptualization. Moreover, less corruption in corporate activities would improve the economic prosperity of a nation. It would also contribute to the cross-cultural portrayal of the positive picture of Islam.

Originality/value

This holistic conceptualization describes the mediating role of strategic innovation practices based on theoretical foundations, which have seldom been done in previous research, between the Islamic model of spiritual leadership and SME success during and after a crisis.

Details

PSU Research Review, vol. 8 no. 1
Type: Research Article
ISSN: 2399-1747

Keywords

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