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Article
Publication date: 25 December 2023

Umair Khan, William Pao, Karl Ezra Salgado Pilario, Nabihah Sallih and Muhammad Rehan Khan

Identifying the flow regime is a prerequisite for accurately modeling two-phase flow. This paper aims to introduce a comprehensive data-driven workflow for flow regime…

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Abstract

Purpose

Identifying the flow regime is a prerequisite for accurately modeling two-phase flow. This paper aims to introduce a comprehensive data-driven workflow for flow regime identification.

Design/methodology/approach

A numerical two-phase flow model was validated against experimental data and was used to generate dynamic pressure signals for three different flow regimes. First, four distinct methods were used for feature extraction: discrete wavelet transform (DWT), empirical mode decomposition, power spectral density and the time series analysis method. Kernel Fisher discriminant analysis (KFDA) was used to simultaneously perform dimensionality reduction and machine learning (ML) classification for each set of features. Finally, the Shapley additive explanations (SHAP) method was applied to make the workflow explainable.

Findings

The results highlighted that the DWT + KFDA method exhibited the highest testing and training accuracy at 95.2% and 88.8%, respectively. Results also include a virtual flow regime map to facilitate the visualization of features in two dimension. Finally, SHAP analysis showed that minimum and maximum values extracted at the fourth and second signal decomposition levels of DWT are the best flow-distinguishing features.

Practical implications

This workflow can be applied to opaque pipes fitted with pressure sensors to achieve flow assurance and automatic monitoring of two-phase flow occurring in many process industries.

Originality/value

This paper presents a novel flow regime identification method by fusing dynamic pressure measurements with ML techniques. The authors’ novel DWT + KFDA method demonstrates superior performance for flow regime identification with explainability.

Details

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

Keywords

Article
Publication date: 28 October 2022

Muhammad Farooq, Qadri Al-Jabri, Muhammad Tahir Khan, Muhamamad Akbar Ali Ansari and Rehan Bin Tariq

The present study aims to investigate the impact of corporate governance proxies by ownership structure and firm-specific characteristics, i.e. firm size, leverage, growth…

Abstract

Purpose

The present study aims to investigate the impact of corporate governance proxies by ownership structure and firm-specific characteristics, i.e. firm size, leverage, growth opportunities, previous year dividend, firm risk, profitability, and liquidity on dividend behavior of the Pakistan Stock Exchange (PSX) listed firms.

Design/methodology/approach

Final sample of the study consists of 140 PSX-listed firms. The study covers a period of six years, starting from 2015 to 2020. Dividend payout dummy, dividend payout ratio, and dividend yield were used to assess the dividend behavior of the sample firms. The appropriate regression procedures (logistic, probit, ordinary least square (OLS), and fixed effect regression) are used to test the study hypothesis. To check the robustness of the result, a system GMM estimation technique is also used in the present study.

Findings

The study reveals that institutional ownership, foreign ownership, and individual ownership have a significant positive whereas managerial ownership has a significant negative impact on the dividend decision of sample firms. Among firm-specific characteristics, it was found that liquidity, profitability, and the previous year's dividend were significantly positive, while growth opportunities were significantly inversely associated with dividend payout decisions of PSX-listed firms.

Practical implications

This study sheds light on the relationship between dividend policy, ownership structure, and firm-specific factors in the context of an emerging market like Pakistan. The study's findings have important implications for managers, minority shareholders, lawmakers, and investors looking for guidance on the dividend policy of publicly-traded non-financial firms.

Originality/value

The literature lacks studies that together analyze the ownership characteristics and firm-specific variables on dividend decisions, particularly in the context of developing economies. The current study aims to fill this gap.

Details

Asia-Pacific Journal of Business Administration, vol. 16 no. 3
Type: Research Article
ISSN: 1757-4323

Keywords

Article
Publication date: 20 September 2021

Muhammad Bilal Khan, Rehan Zahid, Ali Hussain Kazim and Khalid Javed

Depleting reserves of crude oils and their adverse environmental effects have shifted focus toward environment friendly and biobased lubricant base oils. Natural oils and fats act…

Abstract

Purpose

Depleting reserves of crude oils and their adverse environmental effects have shifted focus toward environment friendly and biobased lubricant base oils. Natural oils and fats act as good lubricants but they have low oxidation and thermal stability which makes them unsuitable for modern day uses. This paper aims to produce trimethylolpropane ester biolubricant from cottonseed oil and study the effects of its use in spark ignition (SI) engines.

Design/methodology/approach

In this work, cottonseed oil is converted to TMP lubricant by a two-step based catalyzed esterification. The lubricants thermophysical properties are then analyzed and a 20% blend with synthetic poly-alpha olefin is used in an spark ignition engine.

Findings

The produced lubricant has viscosity @100oC of 4.91 cSt, a viscosity index of 230 and a flash point of 202oC. When used as a 20% blend in a petrol engine, the rate of oil deterioration was reduced by 18%, however, the overall wear increased by 6.7%. However, this increase is offset by its improved environmental impacts.

Originality/value

In its current state, such a biolubricant can be used as an additive to most commercially available lubricants to improve oil deterioration characteristics and environmental impact. However, further work on improving biolubricant’s wear characteristics is needed for the complete replacement of mineral oil-based lubricants.

Details

Industrial Lubrication and Tribology, vol. 73 no. 7
Type: Research Article
ISSN: 0036-8792

Keywords

Article
Publication date: 12 February 2024

Sami Ullah, Tooba Ahmad, Mohit Kukreti, Abdul Sami and Muhammad Rehan Shaukat

Consumers and businesses are becoming increasingly conscious of sustainable business practices and are often willing to pay a premium for responsibly sourced and manufactured…

Abstract

Purpose

Consumers and businesses are becoming increasingly conscious of sustainable business practices and are often willing to pay a premium for responsibly sourced and manufactured products. Many countries and organizations have implemented regulations and standards for sustainability and companies face penalties or are barred from exporting for not meeting the requirements. Rooted in the resource-based view theory, this study aims to test a moderated mediation model to improve the sustainability performance of exporting firms.

Design/methodology/approach

Textile firms generating more than 25% of export revenues were targeted for this research. The data collected from 245 middle management-level employees were tested for reliability and validity. The structural equation modelling in AMOS 26 was used to test hypotheses.

Findings

Organizational readiness for green innovation (ORGI) has a direct positive effect on sustainability performance. The mediation analysis implies that ORGI translates into sustainability performance through improvement in green innovation performance. The moderating effect of knowledge integration highlights the importance of being prepared internally and actively seeking and incorporating external knowledge to improve green innovation performance.

Originality/value

The findings offer a solid foundation for informed decision-making, policy development and strategies to improve sustainability performance while aligning with the global nature of the textile industry and its inherent challenges. The proposed model and practical implications guide policymakers and managers of exporting firms to foster a culture of green innovation to leverage the effect of their readiness for green innovation on sustainability performance.

Details

Journal of Asia Business Studies, vol. 18 no. 2
Type: Research Article
ISSN: 1558-7894

Keywords

Article
Publication date: 28 August 2020

Rehan Aftab and Muhammad Naveed

The study invites seminal investigation on potential of investment returns in professional sports leagues. In line with scope of research, the analysis of this study brings into…

Abstract

Purpose

The study invites seminal investigation on potential of investment returns in professional sports leagues. In line with scope of research, the analysis of this study brings into focus the Pakistan Cricket Board (PCB) and franchises pertinent to Pakistan Super League (PSL) for investment appraisal and returns analysis.

Design/methodology/approach

The methodical aspect of research deals with financial ratios and sensitivity analysis capturing the potential of returns on investment for target sample of study.

Findings

The investment appraisal substantiates the significance of potential returns on sports projects. The returns of investment reports sluggish seasonal returns during initial phase of PSL; however, return on investment (ROI) optimized with the maturity and further capitalization of Pakistan Supper League in more concentrated competitive environment. Sensitivity analysis proves variability of returns with changes in growth prospect of franchises.

Research limitations/implications

The study provides important working knowledge for existing and potential new investors and sports boards to consider the financial investment feasibility through customized investment models and relative orientations of promotion of sports, new talent hunting and re-fabricating the structure of sports in line with new age.

Originality/value

The efficacy of research is ensured through empirical verification of data obtained from reliable sources, and the novelty of research comes from investment appraisal and analysis of growing sports league familiarized as Pakistan Super League. The research approach and target sample are quite unique in context of sports leagues literature.

Details

Managerial Finance, vol. 47 no. 6
Type: Research Article
ISSN: 0307-4358

Keywords

Article
Publication date: 18 April 2023

Rehan Ahmad, Khurram Shahzad, Muhammad Ishtiaq Ishaq and Junaid Aftab

The supply chain agility (SCA) is becoming a source of competitive differentiation but debate on its antecedents which can result in optimal firm performance is still…

Abstract

Purpose

The supply chain agility (SCA) is becoming a source of competitive differentiation but debate on its antecedents which can result in optimal firm performance is still non-pervasive in the literature. Taking this gap into consideration, the current research aimed at investigating various enablers of supply chain agility of Pakistani pharmaceutical industry.

Design/methodology/approach

The data were collected from 204 top executives working in different supply chain functions including planning, supplying, operations and purchasing in national and multinational pharmaceutical companies in Pakistan.

Findings

Through serial-mediation model, results revealed the strength of various SCA enablers, along with the mediating roles of delivery dependability.

Originality/value

This study adds in the literature on how various supply chain enablers and competencies help the organizations to achieve supply chain agility and performance, especially in a developing country.

Details

Business Process Management Journal, vol. 29 no. 4
Type: Research Article
ISSN: 1463-7154

Keywords

Article
Publication date: 10 May 2023

Siswanto

This study aims to investigate religiosity and entrepreneurial motivation roles in the goal-specific, involving Muslim students’ entrepreneurial intention and self-efficacy…

Abstract

Purpose

This study aims to investigate religiosity and entrepreneurial motivation roles in the goal-specific, involving Muslim students’ entrepreneurial intention and self-efficacy. Besides, it examines the robustness model based on group context.

Design/methodology/approach

Partial least square structural equation modelling is employed to examine 502 data collected from Muslim students in Indonesia through an online survey. Meanwhile, partial least square multigroup analysis tests the robustness model.

Findings

Religiosity plays a powerful role in increasing goal-specificity. Meanwhile, entrepreneurial motivation and self-efficacy perform as full mediations in the pathway mechanism of religiosity's effect on entrepreneurial intention.

Research limitations/implications

The current study is conducted based on the previous recommendations and contradictions. Therefore, it clarifies and develops a study on the role of religiosity and entrepreneurial motivation in the goal-specific motivation of Muslim students.

Practical implications

To increase the goal-specificity of entrepreneurship activities, policymakers in the ministry of education and universities must implement and revitalize Muslim students' understanding of the relationship between religiosity and entrepreneurship.

Originality/value

This study defines the role of religiosity in goal-specific, especially Muslim students’ entrepreneurial intentions, by gender, faculty/department and age. Furthermore, it completes the opportunity for research agendas on the relationship between religiosity, entrepreneurial motivation, self-efficacy and entrepreneurial intention.

Details

Journal of Islamic Accounting and Business Research, vol. 15 no. 4
Type: Research Article
ISSN: 1759-0817

Keywords

Open Access
Article
Publication date: 19 January 2023

Oussama Saoula, Amjad Shamim, Munawar Javed Ahmad and Muhammad Farrukh Abid

Entrepreneurship is an important paradigm for enhancing the economic well-being of nations. However, despite heated debate about the significant role of entrepreneurial education…

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Abstract

Purpose

Entrepreneurship is an important paradigm for enhancing the economic well-being of nations. However, despite heated debate about the significant role of entrepreneurial education (EE) in developing favourable entrepreneurial intention (EI), little is known about the role of individuals’ entrepreneurial self-efficacy (ES), entrepreneurial motivation (EM) and family support (FS), which the authors investigated in this study.

Design/methodology/approach

This study has used a quantitative research design to collect data from 334 young people from various Malaysian higher education institutes using a purposive sampling technique and a deductive approach based on the theory of planned behaviour (TPB).

Findings

The findings revealed interesting insights into the criticality of young people’s ES, EM and FS in learning methods, techniques and skills to start new enterprises. Moreover, EE was a significant mediator of the relationship between individual self-efficacy, FS, EM and EI.

Originality/value

This study is among the few to contribute to strategic management scholarship by designing a framework based on the idea that EE relies on diverse factors, particularly ES, EM and FS. These factors encourage Malaysian young people to seek the necessary education to develop favourable EI and launch successful businesses.

Details

Asia Pacific Journal of Innovation and Entrepreneurship, vol. 17 no. 1
Type: Research Article
ISSN: 2071-1395

Keywords

Article
Publication date: 28 June 2022

Maqsood Ahmad

This article aims to systematically review the literature published in recognized journals focused on cognitive heuristic-driven biases and their effect on investment management…

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Abstract

Purpose

This article aims to systematically review the literature published in recognized journals focused on cognitive heuristic-driven biases and their effect on investment management activities and market efficiency. It also includes some of the research work on the origins and foundations of behavioral finance, and how this has grown substantially to become an established and particular subject of study in its own right. The study also aims to provide future direction to the researchers working in this field.

Design/methodology/approach

For doing research synthesis, a systematic literature review (SLR) approach was applied considering research studies published within the time period, i.e. 1970–2021. This study attempted to accomplish a critical review of 176 studies out of 256 studies identified, which were published in reputable journals to synthesize the existing literature in the behavioral finance domain-related explicitly to cognitive heuristic-driven biases and their effect on investment management activities and market efficiency as well as on the origins and foundations of behavioral finance.

Findings

This review reveals that investors often use cognitive heuristics to reduce the risk of losses in uncertain situations, but that leads to errors in judgment; as a result, investors make irrational decisions, which may cause the market to overreact or underreact – in both situations, the market becomes inefficient. Overall, the literature demonstrates that there is currently no consensus on the usefulness of cognitive heuristics in the context of investment management activities and market efficiency. Therefore, a lack of consensus about this topic suggests that further studies may bring relevant contributions to the literature. Based on the gaps analysis, three major categories of gaps, namely theoretical and methodological gaps, and contextual gaps, are found, where research is needed.

Practical implications

The skillful understanding and knowledge of the cognitive heuristic-driven biases will help the investors, financial institutions and policymakers to overcome the adverse effect of these behavioral biases in the stock market. This article provides a detailed explanation of cognitive heuristic-driven biases and their influence on investment management activities and market efficiency, which could be very useful for finance practitioners, such as an investor who plays at the stock exchange, a portfolio manager, a financial strategist/advisor in an investment firm, a financial planner, an investment banker, a trader/broker at the stock exchange or a financial analyst. But most importantly, the term also includes all those persons who manage corporate entities and are responsible for making their financial management strategies.

Originality/value

Currently, no recent study exists, which reviews and evaluates the empirical research on cognitive heuristic-driven biases displayed by investors. The current study is original in discussing the role of cognitive heuristic-driven biases in investment management activities and market efficiency as well as the history and foundations of behavioral finance by means of research synthesis. This paper is useful to researchers, academicians, policymakers and those working in the area of behavioral finance in understanding the role that cognitive heuristic plays in investment management activities and market efficiency.

Details

International Journal of Emerging Markets, vol. 19 no. 2
Type: Research Article
ISSN: 1746-8809

Keywords

Article
Publication date: 26 February 2021

Khairul Hidayatullah Basir and Siti Fatimahwati Pehin Dato Musa

This paper aims to provide an understanding of agripreneurs motivation from the Islamic perspective. The objective of this paper is to explore the proposition that motivations to…

Abstract

Purpose

This paper aims to provide an understanding of agripreneurs motivation from the Islamic perspective. The objective of this paper is to explore the proposition that motivations to become agripreneurs is directly influenced by religious intentions and Islamic values, which would indirectly have an effect on entrepreneurial behaviour.

Design/methodology/approach

An exploratory qualitative approach was used to capture the respondents’ Islamic values and intentions, which motivate them to become agripreneurs. In-depth face-to-face interviewing technique was adopted whereby the respondents were asked to share their thoughts, views and understanding of the issues presented. A sample of five Muslim agripreneurs were interviewed for this study.

Findings

The study found that Islam plays a significant role in influencing the agripreneurs entrepreneurial motivation. Their entrepreneurial behaviour is also underpinned by some Islamic values, which have a positive impact on their mindsets and the growth of their businesses; such as having utmost faith in Allah (taqwa) and believing that Allah is the sole provider, makes them fearless in the business environment and results in a healthy competition amongst agripreneurs.

Research limitations/implications

The study has several limitations. Firstly, the study is based on a small sample of five Muslim agripreneurs who are willing to be interviewed in a specific Islamic environment such as Brunei. Thus, the findings cannot be generalised and may not be a true reflection of all Islamic countries and to Muslims residing in countries in which they are not the majority. Secondly, cultural differences within a country may influence the attitude towards entrepreneurship and entrepreneurship intentions. As this study focusses on Brunei, which is based on Malay Islamic Monarchy, the motivations might be different in other countries because of the cultural differences. Thirdly, agriculture types in this study are limited. Finally, the methodology is purely qualitative.

Practical implications

The findings may assist the government to devise strategies and policies to attract more youth into agriculture particularly in creating a supportive environment for the farmers.

Social implications

The findings of this paper have shown that their Islamic motivations and values result in a more socially responsible entrepreneur in shaping the economy and community at large and more importantly, it also brings them closer to Allah.

Originality/value

This paper highlights the role of Islam in influencing and motivating the respondents to become agripreneurs and persevere in the challenging business environment.

Details

Journal of Enterprising Communities: People and Places in the Global Economy, vol. 16 no. 3
Type: Research Article
ISSN: 1750-6204

Keywords

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