在Windows Server 2003(以下简称Win2003)操作系统推出两年后，在众多用户的期盼之下。微软终于发布了它的第一个中文版补丁包Windows Server 2003 Service Pack 1(以下简称Win2003 SP1)。Win2003 SP1汇集了Win2003系统推出以来最完整...在Windows Server 2003(以下简称Win2003)操作系统推出两年后，在众多用户的期盼之下。微软终于发布了它的第一个中文版补丁包Windows Server 2003 Service Pack 1(以下简称Win2003 SP1)。Win2003 SP1汇集了Win2003系统推出以来最完整的安全更新，并根据这些安全更新降低了可能的攻击面，提升系统的防御能力。同时也提供了更健全的默认值与使用者的权限控管，使系统服务受到更好的保护。本文就是应用Win2003 SP1的安全配置向导来配置安全策略，增强Win2003服务器的安全性。展开更多
这款外观颇似Tablet PC的电脑可谓是一个“异数”，其采用的硬件配置和略微精简的Windows XP embedded操作系统使它看起来更像是一台传统的Tablet PC。然而．与PDA类似．M1400未配置硬盘．它的操作系统固化在512MB的ROM中．这意味着它...这款外观颇似Tablet PC的电脑可谓是一个“异数”，其采用的硬件配置和略微精简的Windows XP embedded操作系统使它看起来更像是一台传统的Tablet PC。然而．与PDA类似．M1400未配置硬盘．它的操作系统固化在512MB的ROM中．这意味着它没有传统的开关机等待时间．而且与系统相关的操作更是快捷无比．其与PC平台软件共通性的特点更是PDA所无法与之匹敌。我们期待已久的固化桌面操作系统终于在M1400身上成为了现实。展开更多
Partial least squares discriminant analysis (PLS-DA) with integrated moving-window (MW) waveband screening was applied to the discriminant analysis of liquor brands with near-infrared (NIR) spectroscopy. Luzhou Laojia...Partial least squares discriminant analysis (PLS-DA) with integrated moving-window (MW) waveband screening was applied to the discriminant analysis of liquor brands with near-infrared (NIR) spectroscopy. Luzhou Laojiao, a popular liquor with strong fragrant flavor, was used as the identified liquor brand (160 samples, negative, 52 vol alcoholicity). Liquors of 10 other brands with strong fragrant flavor were used as the interferential brands (200 samples, positive, 52 vol alcoholicity). The Kennard-Stone algorithm was used for the division of modeling samples to achieve uniformity and representativeness. Based on the MW-PLS-DA, a simplified optimal model set with 157 wavebands was further proposed. This set contained five types of wavebands corresponding to the NIR absorption bands of water, ethanol, and other micronutrients (i.e., acids, aldehydes, phenols, and aromatic compounds) in liquor for practical choice. Using five selected simple models with 4775 - 4239, 7804 - 6569, 6264 - 5844, 9435 - 7896, and 12066 - 10373 cm-1, the validation recognition rates were obtained as 99.3% or higher. Results show good prediction performance and low model complexity, and also provided a valuable reference for designing small dedicated instruments. The proposed method is a promising tool for large-scale inspection of liquor food safety.展开更多
文摘在Windows Server 2003(以下简称Win2003)操作系统推出两年后，在众多用户的期盼之下。微软终于发布了它的第一个中文版补丁包Windows Server 2003 Service Pack 1(以下简称Win2003 SP1)。Win2003 SP1汇集了Win2003系统推出以来最完整的安全更新，并根据这些安全更新降低了可能的攻击面，提升系统的防御能力。同时也提供了更健全的默认值与使用者的权限控管，使系统服务受到更好的保护。本文就是应用Win2003 SP1的安全配置向导来配置安全策略，增强Win2003服务器的安全性。
文摘这款外观颇似Tablet PC的电脑可谓是一个“异数”，其采用的硬件配置和略微精简的Windows XP embedded操作系统使它看起来更像是一台传统的Tablet PC。然而．与PDA类似．M1400未配置硬盘．它的操作系统固化在512MB的ROM中．这意味着它没有传统的开关机等待时间．而且与系统相关的操作更是快捷无比．其与PC平台软件共通性的特点更是PDA所无法与之匹敌。我们期待已久的固化桌面操作系统终于在M1400身上成为了现实。
文摘Partial least squares discriminant analysis (PLS-DA) with integrated moving-window (MW) waveband screening was applied to the discriminant analysis of liquor brands with near-infrared (NIR) spectroscopy. Luzhou Laojiao, a popular liquor with strong fragrant flavor, was used as the identified liquor brand (160 samples, negative, 52 vol alcoholicity). Liquors of 10 other brands with strong fragrant flavor were used as the interferential brands (200 samples, positive, 52 vol alcoholicity). The Kennard-Stone algorithm was used for the division of modeling samples to achieve uniformity and representativeness. Based on the MW-PLS-DA, a simplified optimal model set with 157 wavebands was further proposed. This set contained five types of wavebands corresponding to the NIR absorption bands of water, ethanol, and other micronutrients (i.e., acids, aldehydes, phenols, and aromatic compounds) in liquor for practical choice. Using five selected simple models with 4775 - 4239, 7804 - 6569, 6264 - 5844, 9435 - 7896, and 12066 - 10373 cm-1, the validation recognition rates were obtained as 99.3% or higher. Results show good prediction performance and low model complexity, and also provided a valuable reference for designing small dedicated instruments. The proposed method is a promising tool for large-scale inspection of liquor food safety.
