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矿化域模型在某铷矿床工业指标制定中的运用 被引量:3
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作者 甄大超 黄旺宏 刘文凯 《地质与勘探》 CAS CSCD 北大核心 2016年第1期108-114,共7页
以某铷矿为研究对象,依据收集的矿床地质勘查资料,研究了矿化域建模技术方案,应用MICROMINE软件建立了矿化域三维实体模型,并对矿化域进行估值,快速获得了不同边界指标的资源量。与传统手工计算资源量进行比较,结果表明,建立的矿化域模... 以某铷矿为研究对象,依据收集的矿床地质勘查资料,研究了矿化域建模技术方案,应用MICROMINE软件建立了矿化域三维实体模型,并对矿化域进行估值,快速获得了不同边界指标的资源量。与传统手工计算资源量进行比较,结果表明,建立的矿化域模型合理,计算结果准确,其估算的不同边界指标方案的资源量可以用于本矿床工业指标制定。矿化域模型的运用,不仅提高了矿床资源量估算的准确性和合理性,而且大幅度提高了工业指标制定中矿体圈定和资源量估算工作效率。以某铷矿为研究对象,依据收集的矿床地质勘查资料,研究了矿化域建模技术方案,应用MICROMINE软件建立了矿化域三维实体模型,并对矿化域进行估值,快速获得了不同边界指标的资源量。与传统手工计算资源量进行比较,结果表明,建立的矿化域模型合理,计算结果准确,其估算的不同边界指标方案的资源量可以用于本矿床工业指标制定。矿化域模型的运用,不仅提高了矿床资源量估算的准确性和合理性,而且大幅度提高了工业指标制定中矿体圈定和资源量估算工作效率。 展开更多
关键词 矿化域 MICROMINE 工业指标制定 资源量 估算效率
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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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