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The purpose of this paper is to present a novel model for predicting the effective viscosity of nanofluids. At present, no unified model exists for the same.

The present effective viscosity model draws upon the regression analysis of carefully selected published papers covering experimental, numerical and theoretical findings.

Unlike some other models, this one is reliable and has a good level of accuracy. This model has been assessed in a numerical investigation using a 3D horizontal pipe, and the results are presented.

This is a new model for predicting the effective viscosity of nanofluids. The proposed model has been tested in a 3D horizontal pipe, and the predicted results for viscosity and Nusselt number show good agreement with the available data.

The purpose of the study is to numerically investigate the characteristics of laminar heat transfer and fluid flow in a double tube heat exchanger (DTHE) using water-aluminum oxide (Al₂O₃) nanofluid. The study examines the effects of nanofluid in both counter and parallel flow configurations. Furthermore, an exergy analysis is conducted to assess the impact of nanofluid on exergy destruction.

The single-phase method has been used for Al₂O₃ nanoparticles in water as base fluid in a laminar regime for Reynolds numbers from 400 to 2,000. The effects of nanoparticle volume fractions (0 to 0.1), Nusselt number, Reynolds number, heat transfer coefficient, pressure drop, performance evaluation criteria (PEC) and the impact of counter and parallel flow direction have been studied.

The findings indicate that the incorporation of nanoparticles into the water enhances the heat transfer rate of DTHE. This enhancement is attributed to the improved thermal properties of the working fluid and its impact on the thermal boundary layer. Nusselt number, heat transfer coefficient, and PEC increase by approximately 19.5%, 58% and 1.2, respectively, in comparison to pure water. Conversely, the pressure drop experiences a 5.3 times increase relative to pure water. Exergy analysis reveals that nanofluids exhibit lower exergy destruction compared to pure water. The single-phase method showed better agreement with the experimental results compared to the two-phase method.

Dimensionless correlations were derived and validated with experimental and numerical results for the Nusselt number and PEC for both counter and parallel flow configurations based on the Reynolds number and nanoparticles volume fraction with high accuracy to predict the performance of DTHE without performing time-consuming simulations. Also, an exergy analysis was performed to compare the exergy destruction between nanofluid and pure water.

This chapter examines corporate social responsibility (CSR) practices by Islamic banks (IBs) in Bangladesh and to identify how these initiatives impact on citizens in a positive and a productive manner without compromising the ethics and values. CSR data and the information of seven IBs in Bangladesh were considered to analyse sector-wise CSR expenditures, as well as in the specialised areas focussing on religious values, from 2007–2010. Results indicate that most of the IBs are committed to CSR practice. This may motivate conventional banks to spend more on CSR to compete with their counterparts. Consequently, the total inflow of resources from the banks towards social wellbeing may also increase. The study finds that IBs share some common areas in conducting CSR activities similar to their conventional counterparts. IBs are also engaged in some additional areas due to their mandatory compliance with the shari’ah. The study finds a significantly increasing trend of CSR expenditures and engagements by IBs.

This study aims to gain the perception of Selangor’s disadvantaged women on the Sharīʿah (Islamic law) rules on two micro-equity financing instruments, namely, muḍārabah (profit sharing) and mushārakah (profit-and-loss sharing) (M&M).

A survey was carried out in the rural area of Selangor district in Malaysia by administering a self-generated structured questionnaire. A total of 330 completed questionnaires were retrieved from the members of an Islamic microfinance institution (IsMFI), namely, Amanah Ikhtiar Malaysia (AIM). The data were analysed by using structural equation modelling.

The female borrowers of AIM perceive the Sharīʿah rules of M&M requiring high moral and ethical values and diligent repayment performance. They are aware of some other underlying provisions such as business liquidation, share transfer, information discloser and business termination. The overall findings of this study suggest that the perceived Sharīʿah rules are akin to those that are commonly used in general partnership businesses between Muslims. It also indicates that disadvantaged entrepreneurs would accept the rules that are easy to comprehend as well as favourable to their interests. It further suggests that respondents’ experiences of microfinance and business operation do not have a significant influence on their perception of M&M instruments.

This study was limited to Selangor. So, the perception of Muslim women surveyed may not represent the views of all women in Malaysia. However, it can offer a primary understanding of the said issue.

The findings of this study can help IsMIFs take initiatives to offer M&M as micro-equity finance to poor women entrepreneurs.

So far, limited studies have been carried out on M&M-based microfinancing. This paper offers new insights presenting disadvantaged women entrepreneurs’ perception of these financing instruments.

This study aims to investigate the determinants of the extent and quality of corporate social responsibility disclosure (CSRD) in Jordan. The study examines a number of factors that influence the extent and quality of CSR disclosure, such as corporate characteristics, corporate governance and ownership structure.

A quantitative approach and a content analysis technique is used to measure the extent and quality of CSRD from annual reports. The sample is drawn from the annual reports of 118 Jordanian companies between 2010 and 2015. A CSRD index is constructed, which includes the disclosures of the following categories: environmental, human resources, product and consumers, and community involvement. This is the first study that presents a new measurement for CSR disclosure quality by using images and charts in a seven-point scale measurement.

The result reveals that the extent of CSRD is higher than quality in Jordan. Regarding the determinants of CSR disclosures, the following factors were found to have a significant relationship with both the extent and quality of CSRD: board size, non-executive directors, age of firm, foreign members on the board, number of boards meetings, the presence of audit committees, big 4, government ownership, size of firm and industry type. Non-executive directors was found to have a significant correlation with the extent of CSRD.

The current study has some limitations; first, the study findings are limited to the Jordanian environment. Second, the study adopted a purely quantitative method, and future research could include interviews and questionnaires to gather data from financial managers and chief executive officers (CEOs). Third, the potential influences on the level and quality of CSR are not limited to the variables tested in this study. Future research can be done on new determinants, such as CEO interlocking and profitability. Finally, the sample included companies from two main sectors – the services and industrial sectors; thus, this limited the results to these two main sectors.

Practitioners, as firms, should develop new strategies and ensure that CSR is included in their reports. Thus, companies can achieve legitimacy for their products and activities. Policymakers must consider introducing new laws that mandate CSRDs since it has many advantages for companies and society. In addition, this research suggests amending the law to require companies to have 33% of their directors be non-executives since this will remove the negative effect on CSR disclosure. Investors must pay attention to the social activities of the companies they invest in, as CSR could have a positive effect on their market value.

The study has indicated that Jordanian companies became increasingly more involved in CSR activities, as this growth in CSRD is linked with global increases in CSR. Moreover, the study has revealed that the highest category of CSR disclosures is related to products or services and employee information. On the other hand, the lowest category of CSR disclosures is related to community and other disclosures (extent) and environmental disclosures (quality). Furthermore, the results show that the services sector was found to have more disclosures regarding employees and community, whereas the industrial sector was more concerned about environmental and product information.

To the best of the authors’ knowledge, this is the first study that presents a new measurement for CSR disclosure quality by using images and charts in a seven-point scale measurement. This new seven-point scale will be adopted to distinguish between poor and excellent disclosures. In addition, to the best of the authors’ knowledge, this is the first study in Jordan which examines the determinants of the extent and the quality of CSR for three categories, namely, corporate characteristics, corporate governance and ownership structure.

This study aims to examine the key determinants of corporate social responsibility (CSR) disclosure of all listed banks that operate their function in an emerging market, Pakistan.

This study applied the principles of systems-oriented theories such as legitimacy, stakeholder and agency theory. The hypothesis is linking the bank’s social disclosure and its determinants are developed. The relevant data was gathered from the bank’s annual reports and Pakistan Stock Exchange from 2008 to 2018. Further, governance attributes and performance measures are used as the predictor variable and the CSR score as the predicted variable. This study applied panel data analysis on the sampled banks to examine the proposed hypothesis for empirical estimation.

This study’s inclusive results confirm that the hypothesized determinants of board size, foreign directors on board and female directors on board positively impact the CSR disclosure potential. Board size significantly explains the CSR disclosure in all bank samples. The determined performance measures, profitability and liquidity show a significant positive relationship with CSR disclosure except for few exceptions.

This study’s results lack generalizability due to its unique setting; future researchers can extend the research scope in national–international settings and a regional context.

This study enriches the literature on CSR disclosure determinants and is relevant to practice in an emerging context. It can be helpful from a policy perspective; institutions (bodies) that regulate banks should recognize the governance and performance aspects essential to enhancing CSR disclosure and enhancing the bank’s performance hence value.

This research offers empirical evidence that sheds light on the key governance attributes and performance measures that partially affect CSR disclosure and its extent. In doing so, this study’s findings contribute to the literature significantly, along with regulators, shareholders, deposit holders, individual–institutional investors.

Plantar force is the interface pressure existing between the foot plantar surface and the shoe sole during static or dynamic gait. Plantar force derived from gait and posture plays a critical role for rehabilitation, footwear design, clinical diagnostics and sports activities, and so on. This paper aims to review plantar force measurement technologies based on piezoelectric materials, which can make the reader understand preliminary works systematically and provide convenience for researchers to further study.

The review introduces working principle of piezoelectric sensor, structures and hardware design of plantar force measurement systems based on piezoelectric materials. The structures of sensors in plantar force measurement systems can be divided into four kinds, including monolayered sensor, multilayered sensor, tri-axial sensor and other sensor. The previous studies about plantar force measurement system based on piezoelectric technology are reviewed in detail, and their characteristics and performances are compared.

A good deal of measurement technologies have been studied by researchers to detect and analyze the plantar force. Among these measurement technologies, taking advantage of easy fabrication and high sensitivity, piezoelectric sensor is an ideal candidate sensing element. However, the number and arrangement of the sensors will influence the characteristics and performances of plantar force measurement systems. Therefore, it is necessary to further study plantar force measurement system for better performances.

So far, many plantar force measurement systems have been proposed, and several reviews already introduced plantar force measurement systems in the aspect of types of pressure sensors, experimental setups for foot pressure measurement analysis and the technologies used in plantar shear stress measurements. However, this paper reviews plantar force measurement systems based on piezoelectric materials. The structures of piezoelectric sensors in the measurement systems are discussed. Hardware design applied to measurement system is summarized. Moreover, the main point of further study is presented in this paper.