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1 – 10 of over 2000
Article
Publication date: 10 February 2023

Kanungo Barada Mohanty and Pavankumar Daramukkala

The purpose of this study is to provide the enhancement of power quality of a high power-rated voltage source inverter driven induction motor with a three-phase, three-level…

Abstract

Purpose

The purpose of this study is to provide the enhancement of power quality of a high power-rated voltage source inverter driven induction motor with a three-phase, three-level neutral point clamped converter placed at the front end, while a passive power filter is connected in shunt with it. The improvement in power quality can be achieved by reducing the total harmonic distortion in source current. The controllers were designed for the linearization of the high-power induction motor drive. A control method is presented for the regulation of the common DC-link voltage.

Design/methodology/approach

The induction motor is modeled using its dynamic equations, and a decoupling controller is designed to linearize the nonlinear dynamics of the drive through feedback. The common DC-link voltage of the proposed front-end connected converter is monitored and controlled through a control method which feeds the pulse width modulated inverter that drives the induction motor. A passive power filter is designed to meet the reactive power requirement of the system in addition to improve the power quality.

Findings

Simulations were carried out for the proposed topology of the drive mechanism, and the outcomes were analyzed by a comparative analysis of the drive system both in the presence of the passive filter as well as in the absence of the filter. The total harmonic distortion is found to be reduced enough to meet the standards with the designed filter, and the reactive power is also compensated considerably. The input power factor at the supply side is maintained almost to unity, and the DC-link voltage of the proposed circuit topology is maintained at the desired level. The overall performance of the drive system was found to be useful and economical.

Originality/value

A new topology of a front-end connected three-level neutral point clamped converter to a high power-rated induction motor drive is proposed. The drive is fed by a pulse width modulated inverter with a common DC-link with the front end connected converter. A passive filter is designed with respect to the reactive power requirement of the system and connected in shunt to the converter at the supply side. Control schemes are designed and used for the drive system and also for the regulation of the common DC-link voltage of the proposed front end connected converter.

Details

World Journal of Engineering, vol. 21 no. 3
Type: Research Article
ISSN: 1708-5284

Keywords

Article
Publication date: 4 March 2024

Zeyu Xing, Tachia Chin, Jing Huang, Mirko Perano and Valerio Temperini

The ongoing paradigm shift in the energy sector holds paramount implications for the realization of the sustainable development goals, encompassing critical domains such as…

Abstract

Purpose

The ongoing paradigm shift in the energy sector holds paramount implications for the realization of the sustainable development goals, encompassing critical domains such as resource optimization, environmental stewardship and workforce opportunities. Concurrently, this transformative trajectory within the power sector possesses a dual-edged nature; it may ameliorate certain challenges while accentuating others. In light of the burgeoning research stream on open innovation, this study aims to examine the intricate dynamics of knowledge-based industry-university-research networking, with an overarching objective to elucidate and calibrate the equilibrium of ambidextrous innovation within power systems.

Design/methodology/approach

The authors scrutinize the role of different innovation organizations in three innovation models: ambidextrous, exploitative and exploratory, and use a multiobjective decision analysis method-entropy weight TOPSIS. The research was conducted within the sphere of the power industry, and the authors mined data from the widely used PatSnap database.

Findings

Results show that the breadth of knowledge search and the strength of an organization’s direct relationships are crucial for ambidextrous innovation, with research institutions having the highest impact. In contrast, for exploitative innovation, depth of knowledge search, the number of R&D patents and the number of innovative products are paramount, with universities playing the most significant role. For exploratory innovation, the depth of knowledge search and the quality of two-mode network relations are vital, with research institutions yielding the best effect. Regional analysis reveals Beijing as the primary hub for ambidextrous and exploratory innovation organizations, while Jiangsu leads for exploitative innovation.

Practical implications

The study offers valuable implications to cope with the dynamic state of ambidextrous innovation performance of the entire power system. In light of the findings, the dynamic state of ambidextrous innovation performance within the power system can be adeptly managed. By emphasizing a balance between exploratory and exploitative strategies, stakeholders are better positioned to respond to evolving challenges and opportunities. Thus, the study offers pivotal guidance to ensure sustained adaptability and growth in the power sector’s innovation landscape.

Originality/value

The primary originality is to extend and refine the theoretical understanding of ambidextrous innovation within power systems. By integrating several theoretical frameworks, including social network theory, knowledge-based theory and resource-based theory, the authors enrich the theoretical landscape of power system ambidextrous innovation. Also, this inclusive examination of two-mode network structures, including the interplay between knowledge and cooperation networks, unveils the intricate interdependencies between these networks and the ambidextrous innovation of power systems. This approach significantly widens the theoretical parameters of innovation network research.

Details

Journal of Knowledge Management, vol. 28 no. 5
Type: Research Article
ISSN: 1367-3270

Keywords

Open Access
Article
Publication date: 31 May 2024

Prashanth Madhala, Hongxiu Li and Nina Helander

The information systems (IS) literature has indicated the importance of data analytics capabilities (DAC) in improving business performance in organizations. The literature has…

1446

Abstract

Purpose

The information systems (IS) literature has indicated the importance of data analytics capabilities (DAC) in improving business performance in organizations. The literature has also highlighted the roles of organizations’ data-related resources in developing their DAC and enhancing their business performance. However, little research has taken resource quality into account when studying DAC for business performance enhancement. Therefore, the purpose of this paper is to understand the impact of resource quality on DAC development for business performance enhancement.

Design/methodology/approach

We studied DAC development using the resource-based view and the IS success model based on empirical data collected via 19 semi-structured interviews.

Findings

Our findings show that data-related resource (including data, data systems, and data services) quality is vital to the development of DAC and the enhancement of organizations’ business performance. The study uncovers the factors that make up each quality dimension, which is required for developing DAC for business performance enhancement.

Originality/value

Using the resource quality view, this study contributes to the literature by exploring the role of data-related resource quality in DAC development and business performance enhancement.

Details

Industrial Management & Data Systems, vol. 124 no. 7
Type: Research Article
ISSN: 0263-5577

Keywords

Article
Publication date: 9 January 2024

Shahzaf Iqbal, Kamran Moosa and Che Azlan Bin Taib

This study aims to investigate the relationship between management support, quality infrastructure, staff training and the effectiveness of quality enhancement cells (QECs…

Abstract

Purpose

This study aims to investigate the relationship between management support, quality infrastructure, staff training and the effectiveness of quality enhancement cells (QECs) established in higher education institutions.

Design/methodology/approach

Data were acquired via a structured questionnaire dispatched to faculty members across 12 public and private universities, primarily situated in Punjab, Pakistan. Among the 200 questionnaires distributed, 180 were retrieved and 140 were deemed valid. The proposed relationships were examined using SPSS–25 and PLS–SEM.

Findings

The results show a positive and significant relationship between management support, quality infrastructure and staff training with QECs' effectiveness. The study also highlights that the effectiveness of QECs is “Good” in only two of the 12 universities, while in most universities it is “Barely Acceptable”. Furthermore, QECs' effectiveness is slightly better in public universities compared to private institutions.

Research limitations/implications

The study employs convenience sampling and a cross-sectional approach, focusing on faculty members from 12 universities, primarily in Punjab, Pakistan. To enhance future research, larger samples and probability-based sampling should be considered, while involving quality managers and students for a broader perspective.

Practical implications

The research suggests policymakers and university leaders should strengthen their support by providing resources, quality infrastructure and training for academic and administrative staff. This would enhance the effectiveness of QECs and improve the overall quality of education in both public and private universities.

Originality/value

This study contributes to the literature on quality assurance in higher education by emphasizing the significance of QECs concerning management support, quality infrastructure and staff training – areas that are often overlooked in Pakistani universities.

Details

International Journal of Quality & Reliability Management, vol. 41 no. 6
Type: Research Article
ISSN: 0265-671X

Keywords

Article
Publication date: 3 June 2024

Xin-Jean Lim, Jun-Hwa Cheah, Jennifer Yee-Shan Chang, Weng Marc Lim, Alastair M. Morrison and Yogesh K. Dwivedi

This study synthesises the self-determination theory (SDT), expectation-confirmation model (ECM), and protection motivation theory (PMT) to formulate an integrated theoretical…

Abstract

Purpose

This study synthesises the self-determination theory (SDT), expectation-confirmation model (ECM), and protection motivation theory (PMT) to formulate an integrated theoretical framework that elucidates the process of shaping the intention to continue using facial recognition payment (FRP) under the conditional impact of perceived technology security.

Design/methodology/approach

Data from 667 Beijing Winter Olympics visitors with FRP experience were collected through an online survey and analysed using variance based-structural equation modelling (VB-SEM).

Findings

This study reveals that the intention to continue using FRP evolves through three key stages. Initially, in the expectation stage, the multidimensional concept of artificial autonomy (sensing, thought, and action), which is underpinned by self-determination, is pivotal, strongly influencing perceptions of service enhancement and fostering trust in FRP. Subsequently, the confirmation stage underscores the importance of perceived service enhancement and trust as vital drivers in maintaining FRP usage, while also contributing to subjective well-being. Crucially, perceived technology security emerges as a key moderating factor, enhancing positive perceptions and intentions towards FRP, thus influencing its sustained adoption.

Originality/value

This study stands out by revealing the nuanced interplay between artificial autonomy and user perceptions, particularly concerning service enhancement, technology security, and trust, as they influence well-being and the continued adoption of FRP. Robustly grounded in the integrated theoretical framework of SDT, ECM, and PMT, the study’s findings are critical for comprehending the core elements and specific drivers that promote sustained FRP use, especially as we consider its potential widespread implementation. Therefore, this study not only advances theoretical understanding but also offers practical guidance for optimising FRP deployment strategies in a rapidly evolving technological landscape.

Details

Internet Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 18 July 2024

Claudia Moura-Romero, Carolina Rojas-Córdova and Julio A. Pertuze

This study explores the structure of founders’ hybrid personal identities and their relationship to social venture performance. The authors hypothesize that founders experience…

Abstract

Purpose

This study explores the structure of founders’ hybrid personal identities and their relationship to social venture performance. The authors hypothesize that founders experience the tension between the social and commercial goals of their venture as a paradox rooted in their personal values.

Design/methodology/approach

The authors surveyed 112 social enterprise founders in Chile and used structural equation modeling to test hypotheses about the relationship between self-transcendent values (i.e. promotion of others’ welfare and care for nature) and self-enhancement values (i.e. pursuing own interests and power over others) on a multidimensional scale of social venture performance.

Findings

Self-transcendence and self-enhancement are distinct yet interrelated values that coexist within social venture founders (i.e. they constitute a paradox). Self-transcendence values negatively moderate the positive relationship between self-enhancement values and social venture performance.

Practical implications

Mere benevolence is insufficient for effective social venturing; success depends on the founder’s self-enhancement values or their “drive” to succeed. Founder values can thus inform organizational design choices (e.g. tasks, team composition, structures and processes) and guide public and private investment decisions.

Originality/value

This research empirically assesses the structure of hybrid personal identities, uncovering how the concurrent action of self-transcendence and self-enhancement values influences social venture performance. The authors challenge the belief that balancing social and commercial goals benefits social venture performance. Best-performing ventures are those whose founder’s exhibit high self-enhancement and low self-transcendence values.

Details

Social Enterprise Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1750-8614

Keywords

Article
Publication date: 28 November 2023

Delin Meng, Yanxi Li and Lan Wang

Utilizing the expectation states theory in sociology, this study probes into the influence of the board's informal hierarchy on the quality of enterprise innovation, originating…

Abstract

Purpose

Utilizing the expectation states theory in sociology, this study probes into the influence of the board's informal hierarchy on the quality of enterprise innovation, originating from the perspective of internal directorial interactions, while analyzing the boundary effects exhibited by the nature of property rights and the intensity of geo-culture.

Design/methodology/approach

The study selects China's A-share listed companies from 2008 to 2021 as the research sample, employing the Tobit regression analysis method to scrutinize the hypotheses presented in the text.

Findings

The regression results demonstrate a positive correlation between the board's informal hierarchy and the enterprise innovation quality (EIQ). Upon introducing variables specific to property rights and geographical culture, the authors found that in comparison to non-state-owned enterprises (non-SOEs), the influence of the board's informal hierarchy on the quality of corporate innovation is diminished in SOEs. Conversely, the intensity of geo-culture across Chinese provinces enhances their mutual positive influence. In the additional analysis, the authors also found that the elevation of corporate risk tolerance is a significant pathway for the positive effect of the board's informal hierarchy on EIQ. Moreover, this positive influence is more profound in high-tech enterprises, businesses implementing equity incentive plans and companies that have subscribed to director and officer liability insurance.

Originality/value

The findings not only deepen the understanding of how the board's internal status characteristics influence corporate decision-making but also enrich the application scope of expectation states theory. Furthermore, this study offers valuable guidance for optimizing innovation decision-making by adjusting the personnel structures of corporate boards.

Article
Publication date: 26 July 2024

Saba Sareminia and Vida Mohammadi Dehcheshmeh

Although E-learning has been in use for over two decades, running parallel to traditional learning systems, it has gained increased attention due to its vital role in universities…

Abstract

Purpose

Although E-learning has been in use for over two decades, running parallel to traditional learning systems, it has gained increased attention due to its vital role in universities in the wake of the COVID-19 pandemic. The primary challenge within E-learning pertains to the maintenance of sustainable effectiveness and the assurance of stakeholders' satisfaction. This research focuses on an intelligence-driven solution to recommend the most effective approach to education policymakers by considering the unique characteristics of all components within the educational system (course type, student and teacher characteristics, and technological features) to achieve a sustainable E-learning system.

Design/methodology/approach

Through a systematic literature review and qualitative content analysis, a conceptual model of the critical components influencing E-learning quality and satisfaction has been developed. The proposed model comprises six main dimensions: usage, service quality, learning system quality, content quality, perceived usefulness, and individual characteristics. These dimensions are further divided into 15 components and 114 sub-components. A data mining process encompassing two scenarios has been designed to prioritize the components impacting E-learning success.

Findings

In the first scenario, data mining techniques identified the most influential components based on the features outlined in the conceptual model. According to the results, the components affecting E-learning quality enhancement in the studied case are “usage purpose, system loyalty, technical and supportive system quality, and student characteristics.” The second scenario examines the impact of individuals' personality types and learning styles on E-learning satisfaction across various aspects (Average System Satisfaction, Overall System Satisfaction, Efficiency and Effectiveness, Skill Enhancement, and Personal Enhancement). The findings reveal that, with an accuracy of over 70%, E-learning satisfaction for diplomat and guard learners is influenced by the alignment between “course learning style” and “student-suggested course learning style.” Conversely, for analyzer and researcher types, satisfaction levels are impacted by the “learning style compatible with their personality type.”

Originality/value

Implementing a dynamic model founded on data mining enables educational institutions to personalize the E-learning experience for each individual as much as possible. The study’s findings indicate that “achieving higher satisfaction levels in the E-learning process is not necessarily contingent upon providing a learning style congruent with learners' personality types.” Rather, perceived and suggested learning styles exert a more profound influence. Consequently, providing prescriptive principles for higher education institutions seeking to enhance E-learning quality is inadvisable. Instead, adopting a dynamic, knowledge-based process that furnishes recommendations to policymakers for each course—tailored to the specific course type, teaching records, current processes and technology, and student type—is highly recommended.

Details

The International Journal of Information and Learning Technology, vol. 41 no. 4
Type: Research Article
ISSN: 2056-4880

Keywords

Article
Publication date: 17 May 2022

Fouad Jamaani, Manal Alidarous and Esraa Alharasis

This study aims to examine the impact of the International Financial Reporting Standards (IFRS) mandate and differences in national institutional quality on the underpricing of…

Abstract

Purpose

This study aims to examine the impact of the International Financial Reporting Standards (IFRS) mandate and differences in national institutional quality on the underpricing of Initial Public Offering (IPO) companies.

Design/methodology/approach

Multiple Difference-in-Differences (DiD) ordinary least squares estimations were conducted for 100 corporations listed on the Saudi Arabian stock market using country-level institutional quality data from 2005 to 2017.

Findings

IFRS requirements and improvements in institutional quality have a combined effect on minimizing IPO underpricing. The analysis of the combined impact of IFRS requirements and differences in transparency revealed that IPO vendors leave $5 on average for IPO investors to cash out post the IFRS mandate, compared to $29 previously. Thus, IFRS serves as a quality certification instrument that alleviates IPO investors’ ex ante uncertainties, even in nations with undeveloped institutions.

Practical implications

The findings may be beneficial to researchers and policymakers. The results suggest that institutional quality enhancements and obligatory IFRS implementation highlight IFRS’s synergistic influence on the IPO market. While European harmonization efforts drove the adoption of IFRS in Europe in 2005, Saudi Arabia’s adoption of IFRS is not being driven by such initiatives (Daske et al., 2008; Persakis and Iatridis 2017). In reality, when IFRS was officially imposed in Saudi Arabia in 2008, it, like many other emerging market nations, made considerable reforms to its formal institutions. However, research on the combined impact of IFRS and disparities in institutional quality in emerging IPO markets remains sparse. Emerging markets represent more than half of economies that use IFRS. Therefore, to the best of the authors’ knowledge, this study is the first to conduct an empirical investigation to identify this combined effect in emerging countries using the DiD analytical technique. Equity market legislators remain concerned regarding IPO underpricing, as it has a detrimental influence on economic growth (Bova and Pereira, 2012; Jamaani and Ahmed, 2021; Mehmood et al., 2021). Depending on the degree of information asymmetry in national stock markets, underpricing costs increase the cost of going public for entrepreneurs. Consequently, prospective private firms are discouraged from accessing equity financing through the stock markets. This is likely to impede private sector development plans, causing a negative effect on economic growth.

Originality/value

Emerging countries represent over 50% of the IFRS mandating economies. However, there is insufficient research on the combined effect of IFRS requirements and improvements in institutional quality in developing IPO markets. To the best of the authors’ knowledge, this study is the first empirical attempt to identify this combined effect in one of the largest developing countries. The results may aid academics and policymakers in better understanding the interaction between these two variables.

Article
Publication date: 16 April 2024

Samuel Koomson

Although total quality management (TQM) is an innovative management philosophy, how it connects innovative behaviour (INB) to innovation performance (INP) has gone unnoticed…

Abstract

Purpose

Although total quality management (TQM) is an innovative management philosophy, how it connects innovative behaviour (INB) to innovation performance (INP) has gone unnoticed. Also, the external factors (technological turbulence [TUR], competitive intensity [CMP], market dynamism [MKD] and government regulation [GOV]) under which the INB–TQM connection may grow are yet to be understood. In spite of the various evolutions that have occurred in the banking industry, there remains a necessity to enhance the quality of service offered to clients. This paper aims to address these issues in the total quality management literature.

Design/methodology/approach

This study constructs and analyses a research framework by analysing the replies of 260 executives in senior and intermediate positions across 21 quality-certified universal banks in Ghana, using the Smart PLS methodology.

Findings

TQM played a partial mediating role between INB and INP (variance accounted for = 46.85%, p = 0.000). TUR (β = 0.023, p = 0.000), CMP (β = 0.043, p = 0.000), MKD (β = 0.056, p = 0.000) and GOV (β = 0.068, p = 0.000) positively and significantly moderated the INB–TQM connection.

Research limitations/implications

Future research may examine the proposed framework in various environments and sectors.

Practical implications

Practical insights for industry players in the sector are discussed.

Originality/value

To the best of the authors’ knowledge, this study is the first to show how innovation serves both as an antecedent and consequence of TQM. It is also the first to explicate the boundary conditions under which the INB–TQM relationship may flourish.

Details

European Business Review, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0955-534X

Keywords

1 – 10 of over 2000