Simulation and validation of injection-compression filling stage of liquid moulding with fast curing resins

Very short manufacture cycle times are required if continuous carbon fibre and epoxy composite components are to be economically viable solutions for high volume composite production for the automotive industry. Here, a manufacturing process variant of resin transfer moulding (RTM), targets a reduction of in-mould manufacture time by reducing the time to inject and cure components. The process involves two stages; resin injection followed by compression. A flow simulation methodology using an RTM solver for the process has been developed. This paper compares the simulation prediction to experiments performed using industrial equipment. The issues encountered during the manufacturing are included in the simulation and their sensitivity to the process is explored

Corporate social responsibility disclosure and profitability: Evidence from Islamic banks working in Yemen

This study aims to examine the influence of corporate social responsibility (CSR) disclosure determinants on profitability of Yemeni Islamic financial institutions. The empirical study was based on a balanced panel for twelve years from 2005 to 2016. Banks’ profitability is measured by four indicators such as return on assets (ROA), return on equity (ROE), profit after tax (PAT), and earnings per share (EPS), while corporate social responsibility, financial leverage, inflation rate, asset size, and age of Islamic banks are considered as independent variables. The results of this study with regard to ROA indicated that corporate social responsibility, asset size, inflation rate, and age of Islamic banks have a significant influence on profitability (ROA). With respect to ROE, the result indicated that financial leverage, asset size, and inflation rate are the most important variables affecting bank profitability (ROE). Concerning PAT, the outcome revealed that financial leverage and age of Islamic banks have a significant effect on profitability (PAT). Finally, the result with respect to EPS indicated that financial leverage, asset size, inflation rate, and age of Islamic banks have a significant impact on bank profitability (EPS). The result will be beneficial to scholars, investors, stakeholders, managers, and policymakers in the Islamic financial sector