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石墨烯增强功能梯度多孔梁材料不确定性对热机械过屈曲行为的影响
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作者 Fahed Mohd mohammad talha 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2023年第4期21-43,共23页
本文旨在研究石墨烯片增强功能梯度多孔梁材料不确定性对在热环境下的过屈曲行为的影响.通过采用随机有限元方法,已经完成了全面的确定性和随机性研究.考虑了温度依赖性(TD)和温度无关性(TID)的材料特性.使用Halpin-Tsai微力学模型估计... 本文旨在研究石墨烯片增强功能梯度多孔梁材料不确定性对在热环境下的过屈曲行为的影响.通过采用随机有限元方法,已经完成了全面的确定性和随机性研究.考虑了温度依赖性(TD)和温度无关性(TID)的材料特性.使用Halpin-Tsai微力学模型估计了杨氏模量等均质化有效材料性质,通过Voigt混合法则估计了密度和热膨胀系数.假设均质化的材料特性沿厚度方向以功能渐变的方式变化.所开发的公式基于高阶剪切变形理论,结合冯-卡门型几何非线性进行过屈曲分析.开发C^(0)有限元模型求解非线性控制方程组,使用直接迭代过程进行数值求解.所开发方法的收敛和验证研究也通过独立的蒙特卡罗模拟进行,以确保方法的准确性.分别讨论了材料设计参数如孔隙率含量、纳米填料量和材料特性(即杨氏模量、金属基体密度和纳米填料)的低变异性(随机性)等材料不确定性对FGGPLRC多孔梁热机械过屈曲行为的影响.结果表明,材料性能的不确定性会显著影响FG-GPLRC多孔梁的过屈曲响应. 展开更多
关键词 杨氏模量 功能梯度 蒙特卡罗模拟 纳米填料 温度依赖性 热膨胀系数 材料特性 直接迭代
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Role of supply chain management in target costing
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作者 mohammad talha John B.Raja 《Journal of Modern Accounting and Auditing》 2010年第7期46-57,共12页
Standard costing is used as a control for product costing. But with life cycle becoming shorter, costing should be done at the design and development stage of a product. This is achieved through target costing.The imp... Standard costing is used as a control for product costing. But with life cycle becoming shorter, costing should be done at the design and development stage of a product. This is achieved through target costing.The implementation of target costing and target pricing is done with the ultimate purpose of cost reduction, cost understanding, continuous improvement, competitiveness, early purchasing and supplier involvement, and improved design and accountability by manufacturers. The study explores the participation of the purchasing and supply chain management's role in target costing and target pricing process. Supply management plays an active role in monitoring the ongoing cost and performance of suppliers during the early stages of product development. Implementation of target costing and target pricing in various organizations are also explored. Leading Japanese manufacturers have used target costing and target pricing systems to their advantage and the paper also examines the adaptation of the Western companies to these proactive cost management techniques to improve their product development processes. 展开更多
关键词 target costing supply chain management product lifecycle costing target pricing Kaizen costing
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A study on directors' remuneration and board committee in Malaysia
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作者 mohammad talha Abdullah Sallehhuddin Abdullah Salim Shukor Masoud 《Journal of Modern Accounting and Auditing》 2009年第1期34-44,共11页
Researches on company directors' remuneration and its links with firms' performance and corporate governance have drawn wide attention as stakeholders are interested to find out whether directors received the right ... Researches on company directors' remuneration and its links with firms' performance and corporate governance have drawn wide attention as stakeholders are interested to find out whether directors received the right package of remuneration and whether it is always in line with the firm's performance and corporate governance policy. However, there is a lack of study examining the impact of specific board committee on directors' remuneration, particularly in emerging capital and financial market. This study, involving 120 Malaysian public listed companies, aims to examine this association. The study employs descriptive analysis, Pearson's correlation test and multivariate stepwise statistical technique. The result of the study indicates that there is a positive relationship between directors' remuneration with board executive committee, remuneration committee, nomination committee and corporate governance committee. The result also indicates negative relationship between directors' remuneration with employees share option scheme committee. However, all these associations are not significant, except ownership structure that is used as a control variable. This result prompts a need to reexamine the effectiveness of corporate governance practice through establishment of board committee in determining directors' remuneration. 展开更多
关键词 directors' remuneration board of directors board committee corporate governance MALAYSIA
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An Enquiry Into the Responsiveness of Corporate Profitability to Corporate Governance Mechanism" Evidences From Malaysian Government-Linked Companies (GLCs)
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作者 mohammad talha Abdullah Sallehhuddin +1 位作者 Md Shukor Masoud Musthafa Mohamed 《Journal of Modern Accounting and Auditing》 2014年第6期683-693,共11页
Realizing the importance of corporate governance, many governments have embarked upon various initiatives. In Malaysia, the recently introduced Green Book program aims to strengthen the corporate governance among the ... Realizing the importance of corporate governance, many governments have embarked upon various initiatives. In Malaysia, the recently introduced Green Book program aims to strengthen the corporate governance among the government-linked companies (GLCs), in view of their significant contributions to the national socio-economic development. The Green Book initiative, launched in 2005, contains, among other things, a provision to create a high-performing board. Performance of GLCs, therefore, is likely to scale better heights with the modification of the constitution of the boards. The present paper aims to examine the association between the selected corporate governance attributes and performance of GLCs in 2010, approximately five years since the implementation of the transformation program. The regression analysis reveals that none of the selected corporate governance indicators has significantly impacted the performance of GLCs. The findings serve as a wake-up call to the authorities to appraise the effectiveness of the transformation program in enhancing the performance of GLCs. 展开更多
关键词 corporate governance government investment agencies government-linked companies (GLCs) Malaysia
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