借助最新的商业智能理论和方法,建立面向中小型企业的商业智能平台软件MDDAS(Multi-Dimensionality Data Analyze System,多维数据分析系统)。MDDAS应用固定报表、仪表盘、电子地图和OLAP等工具,在序列趋势模型、周期模型、结构模型、...借助最新的商业智能理论和方法,建立面向中小型企业的商业智能平台软件MDDAS(Multi-Dimensionality Data Analyze System,多维数据分析系统)。MDDAS应用固定报表、仪表盘、电子地图和OLAP等工具,在序列趋势模型、周期模型、结构模型、对比模型、关联模型、统计模型、模拟模型等模型技术的辅助下,对原料,产品,企业,供应商,销售,库存,市场综合,效益综合,品牌综合等分析评价指标在不同统计口径(时间口径、空间口径等)下进行分析、评价、监督和预警,给企业管理决策者提供及时、准确的信息。MDDAS具有通用性、灵活性、敏捷性,可以为应用MDDAS的中小型企业提供有益的帮助。展开更多
Sub-microsecond time-resolved absorption spectroscopy has been used to study the electronically excited state behavior of soluble multiwalled carbon nanotube (MWNTsCON((CH2)9- CH3)2, denoted as MDDA) in chloroform, to...Sub-microsecond time-resolved absorption spectroscopy has been used to study the electronically excited state behavior of soluble multiwalled carbon nanotube (MWNTsCON((CH2)9- CH3)2, denoted as MDDA) in chloroform, toluene and cyclohexane. Following pulsed photo-excitation of MDDA at 355 nm, three major spectral components are clearly identified with the help of global analysis carried out over 7 representative kinetics curves from 450 to 700 nm. The solvent depend-ence of decay associated difference spectra (DADS) and the corresponding lifetimes help to assign these transient species to singlet state (S1), triplet state (T1) and charge-separated state (CS), re-spectively. Preliminary discussion had been made to explore the involved photophysical and electron transfer processes.展开更多
文摘借助最新的商业智能理论和方法,建立面向中小型企业的商业智能平台软件MDDAS(Multi-Dimensionality Data Analyze System,多维数据分析系统)。MDDAS应用固定报表、仪表盘、电子地图和OLAP等工具,在序列趋势模型、周期模型、结构模型、对比模型、关联模型、统计模型、模拟模型等模型技术的辅助下,对原料,产品,企业,供应商,销售,库存,市场综合,效益综合,品牌综合等分析评价指标在不同统计口径(时间口径、空间口径等)下进行分析、评价、监督和预警,给企业管理决策者提供及时、准确的信息。MDDAS具有通用性、灵活性、敏捷性,可以为应用MDDAS的中小型企业提供有益的帮助。
基金This work was supported by the National Natural Science Foundation of China (Grant No. 20373079).
文摘Sub-microsecond time-resolved absorption spectroscopy has been used to study the electronically excited state behavior of soluble multiwalled carbon nanotube (MWNTsCON((CH2)9- CH3)2, denoted as MDDA) in chloroform, toluene and cyclohexane. Following pulsed photo-excitation of MDDA at 355 nm, three major spectral components are clearly identified with the help of global analysis carried out over 7 representative kinetics curves from 450 to 700 nm. The solvent depend-ence of decay associated difference spectra (DADS) and the corresponding lifetimes help to assign these transient species to singlet state (S1), triplet state (T1) and charge-separated state (CS), re-spectively. Preliminary discussion had been made to explore the involved photophysical and electron transfer processes.
