2007年4月26日，甲骨文公司在美国总部宣布，同意收购面向公用事业的表计管理和竞争性能源解决方案领先供应商Lodestar公司。Lodestar互补的产品和甲骨文业界领先的公用事业应用软件产品组合（通过收购SPL World Group以及甲骨文公用事...2007年4月26日，甲骨文公司在美国总部宣布，同意收购面向公用事业的表计管理和竞争性能源解决方案领先供应商Lodestar公司。Lodestar互补的产品和甲骨文业界领先的公用事业应用软件产品组合（通过收购SPL World Group以及甲骨文公用事业全球业务部门目前所提供的产品而获得）突显了甲骨文致力于公用事业的承诺。展开更多
A novel nonlinear combination process monitoring method was proposed based on techniques with memo- ry effect （multivariate exponentially weighted moving average （MEWMA）） and kernel independent component analysis ...A novel nonlinear combination process monitoring method was proposed based on techniques with memo- ry effect （multivariate exponentially weighted moving average （MEWMA）） and kernel independent component analysis （KICA）. The method was developed for dealing with nonlinear issues and detecting small or moderate drifts in one or more process variables with autocorrelation. MEWMA charts use additional information from the past history of the process for keeping the memory effect of the process behavior trend. KICA is a recently devel- oped statistical technique for revealing hidden, nonlinear statistically independent factors that underlie sets of mea- surements and it is a two-phase algorithm., whitened kernel principal component analysis （KPCA） plus indepen- dent component analysis （ICA）. The application to the fluid catalytic cracking unit （FCCU） simulated process in- dicates that the proposed combined method based on MEWMA and KICA can effectively capture the nonlinear rela- tionship and detect small drifts in process variables. Its performance significantly outperforms monitoring method based on ICA, MEWMA-ICA and KICA, especially for lonu-term performance deterioration.展开更多
This paper aims to analyze the development of auditing. It is found that auditing has evolved through a number of stages. In the mid 1800s to early 1900s, the audit practice was considered as ＂traditional conformance...This paper aims to analyze the development of auditing. It is found that auditing has evolved through a number of stages. In the mid 1800s to early 1900s, the audit practice was considered as ＂traditional conformance role of auditing＂. However, for the past 30 years, the auditor has been playing an ＂enhancing role＂. Today, auditors are expected not only to enhance the credibility of the financial statement, but also to provide value-added services. Nevertheless, following extensive reform in various countries as a result of the collapse of big corporations, it is expected that the role of auditors will converge. It is evident that the paradigm about auditing has shifted over the years and it is likely to continue shifting in the future.展开更多
文摘2007年4月26日，甲骨文公司在美国总部宣布，同意收购面向公用事业的表计管理和竞争性能源解决方案领先供应商Lodestar公司。Lodestar互补的产品和甲骨文业界领先的公用事业应用软件产品组合（通过收购SPL World Group以及甲骨文公用事业全球业务部门目前所提供的产品而获得）突显了甲骨文致力于公用事业的承诺。
基金The National Natural Science Foundation ofChina(No60504033)
文摘A novel nonlinear combination process monitoring method was proposed based on techniques with memo- ry effect （multivariate exponentially weighted moving average （MEWMA）） and kernel independent component analysis （KICA）. The method was developed for dealing with nonlinear issues and detecting small or moderate drifts in one or more process variables with autocorrelation. MEWMA charts use additional information from the past history of the process for keeping the memory effect of the process behavior trend. KICA is a recently devel- oped statistical technique for revealing hidden, nonlinear statistically independent factors that underlie sets of mea- surements and it is a two-phase algorithm., whitened kernel principal component analysis （KPCA） plus indepen- dent component analysis （ICA）. The application to the fluid catalytic cracking unit （FCCU） simulated process in- dicates that the proposed combined method based on MEWMA and KICA can effectively capture the nonlinear rela- tionship and detect small drifts in process variables. Its performance significantly outperforms monitoring method based on ICA, MEWMA-ICA and KICA, especially for lonu-term performance deterioration.
文摘This paper aims to analyze the development of auditing. It is found that auditing has evolved through a number of stages. In the mid 1800s to early 1900s, the audit practice was considered as ＂traditional conformance role of auditing＂. However, for the past 30 years, the auditor has been playing an ＂enhancing role＂. Today, auditors are expected not only to enhance the credibility of the financial statement, but also to provide value-added services. Nevertheless, following extensive reform in various countries as a result of the collapse of big corporations, it is expected that the role of auditors will converge. It is evident that the paradigm about auditing has shifted over the years and it is likely to continue shifting in the future.
