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一个自催化振动模型的概周期解与周期解
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作者 陈水林 《湖北工学院学报》 2002年第3期56-58,62,共4页
利用概周期解的扰动原理及 Poincare的周期理论 ,讨论一个自催化振动模型在周期外力作用下 ,带强迫项后的概周期解及周期解的存在性 .
关键词 自催化振动模 概周期解 周期解 指数型二分法
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强迫布鲁塞尔振子的概周期解
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作者 李相朋 《湖北科技学院学报》 1995年第3期10-13,共4页
通过适当的坐标变换,我们化简布鲁塞尔振子模型为拟线性微分方程,然后用概周期解的扰动原理证明了布鲁塞尔振子模型的概周期解的存在性.
关键词 特征根 概周期解 指数型二分法
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Annual risk reporting of listed companies in Malaysia
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作者 Ruhaya Atan Enny Nurdin Sutan Maruhun +1 位作者 Wan Hasnah Wan A bdul Kadir Kamaruzaman Jusoff 《Journal of Modern Accounting and Auditing》 2010年第8期26-37,共12页
This study examines risk reporting in annual reports of Malaysian listed companies. The mandatory and voluntary disclosures of risk information are analyzed and the authors examine whether a relationship exists betwee... This study examines risk reporting in annual reports of Malaysian listed companies. The mandatory and voluntary disclosures of risk information are analyzed and the authors examine whether a relationship exists between company size, leverage, and industry type and risk disclosure levels. 150 listed companies from five industries are selected as sample. Content analysis and risk disclosure index of dichotomous measurement are used in data collection. Overall the results indicate that level of risk information disclosed in the annual reports is still minimal. OLS (Ordinary least squares) regression analysis indicates that the level of risk information disclosure is positively associated with size and not with leverage. However, a mixed result has been found for industry type; where only property industry shows a significant relationship with level of risk disclosure, and not for the other industries. This study contributes to financial reporting literature in relation to risk reporting, particularly the practice of Malaysian companies. Findings from this study are also useful to regulators and accounting standard setting body to assess the level of compliance to regulations and standards relating to risk reporting by these companies. More studies are required to further understand the importance of risk information disclosure, such as risk disclosure within specific industry, cross-country studies and usefulness of risk information disclosure from the stakeholders' perspectives. 展开更多
关键词 RISK REPORTING annual reports listed companies RISK
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