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Article
Publication date: 11 January 2019

Abdul Hameed, Syed Asif Raza, Qadeer Ahmed, Faisal Khan and Salim Ahmed

The purpose of this paper is to develop a decision support tool for risk-based maintenance scheduling for a large heavily equipped gas sweetening unit in a Liquefied…

Abstract

Purpose

The purpose of this paper is to develop a decision support tool for risk-based maintenance scheduling for a large heavily equipped gas sweetening unit in a Liquefied Natural Gas (LNG) plant. Two conflicting objectives, i.e., total maintenance cost and the reliability, are considered in the tool. The tool is tested with the real plant data and suggests several Pareto-optimal schedules for a decision maker to choose from. The financial impacts are assessed.

Design/methodology/approach

A bi-objective scheduling optimization model is developed for maintenance scheduling using a risk-based framework. The model is developed integrating genetic algorithm and simulation-based optimization to find Pareto-optimal schedules. The model delivered true Pareto front optimal solutions for given plant-specific data. The two conflicting objectives: the minimization of total expenditures incurred on maintenance-related activities and improving the total reliability are considered.

Findings

For large and complex processing facilities such as LNG plant, a shutdown of facility generates a significant financial impact, resulting in millions of dollars in production loss. The developed risk-based equipment selection strategy helps to minimize such an event of production loss by generating a thorough maintenance strategy for inspection, repair, overhaul or replacement schedule of the unit without initiating the shutdown. The proposed model has been successfully applied to obtain an optimize maintenance schedule for a gas sweetening unit.

Research limitations/implications

A future work may consider the state-dependent models for various failure modes that will result in obtaining a better representation of the model. The proposed scheduling can further be extended to multi-criteria scheduling including availability, resource limitation and inflationary condition. A comparative analysis with other meta-heuristic techniques such as harmony search algorithm, tabu search, and simulated annealing will further help in confirming the schedule obtained from this application.

Practical implications

Maintenance scheduling using a conventional approach for special equipment generally does not consider the conflicting objectives. This research addresses this aspect using a bi-objective model. The usefulness of risk-based method is to assist in minimizing the financial and safety risk exposure to the operating companies, but some variation in results is expected due to varying risk matrix for different organizations.

Social implications

Managing two objectives, i.e., minimizing the cost of maintenance-related activities, while at the same time maximizing the overall reliability dramatically, helps in mitigating adverse safety and financial risk due to fires, explosions, fatality and excessive maintenance cost.

Originality/value

Research develops a decision support tool for managing conflicting objectives for an LNG process. This research highlights the impact of utilizing the simulation-based approach coupled with risk-based equipment selection for complex processing unit or plant maintenance scheduling optimization.

Details

Journal of Quality in Maintenance Engineering, vol. 25 no. 1
Type: Research Article
ISSN: 1355-2511

Keywords

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Article
Publication date: 9 March 2021

Abdul Hameed Pitafi and Minglun Ren

This study aims to investigate the impact of enterprise social media (ESM) usage on employee agility through communication quality and visibility. Theory of communication…

Abstract

Purpose

This study aims to investigate the impact of enterprise social media (ESM) usage on employee agility through communication quality and visibility. Theory of communication visibility is used to explore the moderating role of ESM-related strain in the relationship among communication quality, visibility and employee agility.

Design/methodology/approach

The research model is analyzed using data from 240 Chinese employees of different companies. The proposed hypotheses are tested using structural equation modeling, hierarchical regression and mediation analysis.

Findings

Findings suggest that ESM usage is positively related to communication quality and visibility. Communication visibility mediates the relationship between ESM usage and employee agility. ESM-related strain reduces the relationship between communication visibility and employee agility. However, ESM-related strain has an insignificant moderating effect on the relationship between communication quality and employee agility.

Originality/value

The present study examines how employee agility is associated with ESM usage in the workplace. The mediating effects of communication quality and visibility are explored using a theoretical foundation. This study provides empirical evidence on how the impact of ESM on employee agility is transmitted through communication visibility. Lastly, the current study quantifies the advantages of ESM for organizations and may motivate managers to confidently deploy ESM in the workplace.

Details

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

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Article
Publication date: 12 November 2020

Xiongfei Cao, Ahsan Ali, Abdul Hameed Pitafi, Ali Nawaz Khan and Muhammad Waqas

The purpose of this study is to extend the existing literature on knowledge management, which generally focuses on knowledge sharing. The model of this article explains…

Abstract

Purpose

The purpose of this study is to extend the existing literature on knowledge management, which generally focuses on knowledge sharing. The model of this article explains how knowledge creation and team performance can be increased through the integration of social and technological factors

Design/methodology/approach

To empirically test the model, multi-wave and multi-source data were collected from 80 teams whose members use social media as a tool for communication and interaction.

Findings

The analysis results provide insights into some interesting findings. The results show transactive memory system (TMS) as an important factor that can significantly contribute to knowledge creation in teams. Especially, the TMS strengthens the significant positive effect of enterprise social media (ESM) and insignificant positive effect of knowledge complementarity on knowledge creation. Furthermore, knowledge creation is found to be a significant predictor of team performance

Originality/value

Much of the knowledge management literature focuses on the ways to increase the quantity of accessible knowledge to organization members. Such knowledge management studies are more relevant to knowledge exchange among individual employees, teams and organizations. However, this study takes a nuanced approach to explore how knowledge creation can be increased in teams by implementing a knowledge integration mechanism. A general model of knowledge creation is proposed, but the strength of this model lies in the moderating effect of TMS which strengthens the effect of knowledge complementarity and ESM on knowledge creation in teams which eventually increases team performance.

Details

Information Technology & People, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0959-3845

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Article
Publication date: 6 August 2020

Muhammad Athar Nadeem, Zhiying Liu, Abdul Hameed Pitafi, Amna Younis and Yi Xu

Cryptocurrencies, such as Bitcoin, generate innovative and fast exchanges without any physical form and facilitate online payments; thus, they may bring about revolutions…

Abstract

Purpose

Cryptocurrencies, such as Bitcoin, generate innovative and fast exchanges without any physical form and facilitate online payments; thus, they may bring about revolutions of the future economic system. Recent investigations reveal that China, the second largest Bitcoin market, accounts for a huge volume of Bitcoin trading and mining, which can cast distinct influences on future values of Bitcoin. Therefore, it would be of great significance to probe into the repurchase intention of Bitcoin of the Chinese individuals.

Design/methodology/approach

One hundred and forty-three questionnaires were collected from Chinese respondents. SPPS was employed for data analysis of the proposed hypotheses.

Findings

The results show that expectation has a positive impact on perceived enjoyment and perceived ease of use. A positive relationship between perceived ease of use and perceived enjoyment was confirmed. The findings also reveal that expectation, perceived enjoyment and perceived ease of use have significant impact on satisfaction. Moreover, it is found that perceived enjoyment, perceived ease of use and satisfaction significantly influence the repurchase intention of Bitcoin.

Research limitations/implications

This study encourages future comparative studies to be conducted. Besides, it is recommended to find out other possible antecedents of repurchase intention. Moreover, this study suggested negative effects of Bitcoin to be explored.

Practical implications

In a practical standpoint, this study provides valuable suggestions about cryptocurrencies use and regularization. For instance, education and learnability issues of novice users need to be considered. Further, the regularization/implementation of cryptocurrencies/blockchain technologies is also suggested.

Originality/value

This is the pioneer endeavor which investigates the repurchase intention of Bitcoin. The findings explore some of the possible antecedents which influence repurchase intention of Bitcoin. These findings provide valuable insights and enrich the existing body of literature in the domain of Bitcoin.

Details

Data Technologies and Applications, vol. 54 no. 5
Type: Research Article
ISSN: 2514-9288

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Article
Publication date: 22 December 2020

Tashooq Bhat, Syed Zameer Hussain, Bazila Naseer, Abdul Hameed Rather and Shakeel Ahmad Mir

Snack industry is one of the fastest growing food sectors globally, and people are nowadays conscious about intake of healthy snacks on regular basis. There is enormous…

Abstract

Purpose

Snack industry is one of the fastest growing food sectors globally, and people are nowadays conscious about intake of healthy snacks on regular basis. There is enormous variety of ready-to-snacks available in the market. Brown rice though highly nutritious in comparison to polished rice is consumed meagerly by masses. Each raw material/ingredient used in extrusion cooking requires specific control of processing variables to meet acceptable product characteristics and consumer demands, which in turn necessitates the need to optimize the conditions for development of brown-rice-based snacks. The aim of this study was to optimize the extrusion cooking conditions for development of brown-rice-based extrudates.

Design/methodology/approach

Extrusion conditions were optimized through design expert using central composite rotatable design (CCRD) experimental design. The effect of feed moisture (10–22%), screw speed (215–385 rpm) and barrel temperature (95–160 °C) on specific mechanical energy (SME), bulk density (BD), water absorption index (WAI), water solubility index (WSI), expansion ratio (ER), breaking strength (BS) and instrumental color (L*, a*, b*) was evaluated.

Findings

All the system and product responses were significantly (p < 0.01) affected by independent variables. Regression models obtained were highly significant with high coefficient of determination (R2 = 0.992). The optimum extrusion conditions obtained by numerical optimization for development of snacks were moisture content of 12%, screw speed of 350 rpm and temperature of 133 °C. The vitamin B1 content of brown-rice-based snacks was 0.45 mg/100 (50% of RDA) whereas no vitamin B1 was detected in white-rice-based snacks used as control.

Practical implications

The developed snacks contain 0.45 mg/100 g of vitamin B1. If a person on an average consumes 150 g of snacks in a day, 50% of RDA (1.2 mg/day) for vitamin B1 can be sufficed. Therefore, developed snacks can prove to be a viable vehicle to reduce the vitamin B1 deficiency burden among the target population. Large-scale production and consumption of such type of snacks could improve the nutritional status of vitamin B1 deficient people. Furthermore, it can also provide a good opportunity for snack industry to develop nutritious snacks through utilization of brown rice.

Originality/value

Brown rice flour contains nutrients such as iron, calcium, zinc, sodium and vitamin B1 in appreciable portions and was thus explored for development of nutritious snacks. Moreover, developed snacks recorded an overall acceptability of 4.70 out of 5, which depicts it is acceptable for mass production and consumption.

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Book part
Publication date: 27 November 2018

Tabish Zaman, Matthew Mount, Tyrone S. Pitsis, Rory O’Connor and Stephen Dean

In this chapter the authors present a field study investigating the adoption of information communications technology innovation at a UK-based University hospital. The…

Abstract

In this chapter the authors present a field study investigating the adoption of information communications technology innovation at a UK-based University hospital. The authors have followed the implementation of electronic medicine chart technology (EMEDs) designed to replace “traditional” paper-based systems used by doctors, nurses, and pharmacists teams in the hospital. Having studied the interactions between the “user” and “implementer” groups, the findings of this chapter offer a socio-cognitive model of innovation adoption which accounts for the intra- and inter-team idiosyncrasies that underpin the processes of implementation. Using the concept of interactive framing as the analytical lens, findings of this chapter illustrate that the adoption and diffusion process of innovation is a social process resulting from the interaction of organizational team members. The cycles constituting the adoption and implementation of EMEDs in this research encapsulate the conflicting experience of different groups and their transition from implementation to acceptance. The authors have adopted a socio-cognitive perspective to explain the asymmetrical experience of different groups in a complex, high reliable organization.

Details

Cognition and Innovation
Type: Book
ISBN: 978-1-78769-432-3

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Article
Publication date: 6 April 2021

Mohammad Yousef Abuhashesh, Muhammad Turki Alshurideh, Ala'eddin Ahmed, Mohammad Sumadi and Ra'ed Masa'deh

This paper aims to investigate the impact of Hofstede’s cultural factors on customers’ attitudes toward Facebook advertising through the moderating role of gender.

Abstract

Purpose

This paper aims to investigate the impact of Hofstede’s cultural factors on customers’ attitudes toward Facebook advertising through the moderating role of gender.

Design/methodology/approach

This study used the quantitative method and the research tool was a questionnaire, comprising 38 items, which was distributed in Jordan. A total of 404 correctly completed questionnaires were returned. In total, 187 of the respondents were women and 217 men. Multiple regression analysis was conducted to test the research hypotheses.

Findings

The results of the current study revealed that differences in each dimension have varied impacts on consumers’ attitudes. From the perspective of individualism, it appears that individualistic customers tend to make their own decisions and are less susceptible to influence from others. Also, uncertainty avoidance can negatively impact attitudes toward Facebook advertising due to a lack of trust. In addition, this study investigates differences in attitudes toward Facebook advertising based on gender. The null hypothesis test is statistically rejected and the alternate hypothesis test is statistically accepted for gender role as the moderating variable.

Originality/value

This is the first study that examines the impact of Hofstede’s cultural factors on customers’ attitudes toward Facebook advertising through the moderating role of gender in Jordan. Also, the study clarifies the importance of culture and gender differences as important factors affecting marketing strategy. Moreover, the study’s result can add more value to international companies to understand culture differences among customers with an international scope.

Details

Review of International Business and Strategy, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2059-6014

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Article
Publication date: 12 April 2013

Adel Mohammed Sarea and Mustafa Mohd Hanefah

The purpose of this paper is to determine the need of Islamic Accounting Standards – a review of the literature – for Islamic financial institutions (IFIs).

Abstract

Purpose

The purpose of this paper is to determine the need of Islamic Accounting Standards – a review of the literature – for Islamic financial institutions (IFIs).

Design/methodology/approach

The basis of the paper was stakeholder theory to analyse the need of accounting standards and to design the conceptual framework as evidenced from Accounting and Auditing Organization for Islamic Financial Institutions (AAOIFI). The evidence reviewed suggests the need for Islamic accounting standards to fill the gap in accounting practice among Islamic financial institutions.

Findings

The AAOIFI accounting standards serve as a guideline that may reflect the unique characteristics of IFIs and become a useful tool to meet the various needs of IFIs. Currently, one of the major challenges facing IFIs lies in the preparation of the financial statements under different accounting standards and which may lead to problems of comparability, reliability and compliance level measurement. This has resulted in a heated debate among scholars which has hitherto translated to the evolving existing literature surrounding the interpretation of the level of compliance with the Islamic accounting standards. The paper concludes with various recommendations for future research, the most important of which is the need for future studies on how AAOIFI accounting standards can be made mandatory in all Muslim countries.

Originality/value

This paper contributes towards a better understanding and acceptability of the need of Islamic Accounting Standards.

Details

Journal of Islamic Accounting and Business Research, vol. 4 no. 1
Type: Research Article
ISSN: 1759-0817

Keywords

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Article
Publication date: 1 February 1997

Hamid S. Atiyyah

The purpose of this article is twofold: to identify the characteristics of research on organisation and management in Arab countries and to find out whether research…

Abstract

The purpose of this article is twofold: to identify the characteristics of research on organisation and management in Arab countries and to find out whether research results support the culture‐free hypothesis or not. A thorough search of sixteen journals, research monographs, books and theses produced only 35 empirical studies. Most of these studies were exploratory, descriptive, and used small convenient samples. Although some findings supported the culture‐bound hypothesis, major conceptual and methodological weaknesses in these studies throw doubt upon the validity of their results.

Details

Cross Cultural Management: An International Journal, vol. 4 no. 2
Type: Research Article
ISSN: 1352-7606

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Article
Publication date: 1 December 2005

Khalid Mahmood, Abdul Hameed and Syed Jalaluddin Haider

To identify which library services could be provided on a fee‐based model in Pakistan.

Abstract

Purpose

To identify which library services could be provided on a fee‐based model in Pakistan.

Design/methodology/approach

Surveying experts in Pakistani libraries, a questionnaire was administered to determine both the types of library services that could generate revenue and the viability of charging for library services.

Findings

Out of 32 identified information services, 12 were identified as excellent candidates for the fee‐based model. Another 16 were identified as having a better than 50 percent chance of success.

Originality/value

Identifies a minimum of 28 library services that may generate funds for Pakistani libraries if they are changed to a fee‐based model.

Details

The Bottom Line, vol. 18 no. 4
Type: Research Article
ISSN: 0888-045X

Keywords

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