Windows Server 2003的最大特点是固若金汤的安全性,但是Windows Server 2003安全配置是一项比较有难度的网络技术,而且其默认的安全配置也不一定适合我们的需要,可以通过正确划分文件系统格式、选择稳定的操作系统安装盘、正确设置磁...Windows Server 2003的最大特点是固若金汤的安全性,但是Windows Server 2003安全配置是一项比较有难度的网络技术,而且其默认的安全配置也不一定适合我们的需要,可以通过正确划分文件系统格式、选择稳定的操作系统安装盘、正确设置磁盘的安全性、禁用不必要的服务和修改注册表等方式,对Windows Server 2003安全配置进行再设置。展开更多
为提高选煤厂生产的自动化程度,加强对选煤过程的控制,促进选煤厂安全高效生产,保证产品指标的合格稳定。根据斜沟煤矿选煤厂原煤处理量大、介质系统多、设备台数多,不同原煤性质差异大的特点,引进了选煤厂集控操作系统。从集控系统的...为提高选煤厂生产的自动化程度,加强对选煤过程的控制,促进选煤厂安全高效生产,保证产品指标的合格稳定。根据斜沟煤矿选煤厂原煤处理量大、介质系统多、设备台数多,不同原煤性质差异大的特点,引进了选煤厂集控操作系统。从集控系统的配置与设置、集控功能的实现和集控在生产过程中的调节3方面进行了论述。2014年上半年销售精煤合格率100%,混煤合格率100%,介耗1.41 kg/t、电耗6.51 k Wh/t。指标证明了该操作法完全适应本厂工艺、煤质特点。展开更多
A polyhedral oligomeric silsesquioxane-[60]fullerene (POSS-C60) dyad was designed and used as a novel electron acceptor for bulk heterojunction (BHJ) polymer solar cells (PSCs) with an inverted device configuration. T...A polyhedral oligomeric silsesquioxane-[60]fullerene (POSS-C60) dyad was designed and used as a novel electron acceptor for bulk heterojunction (BHJ) polymer solar cells (PSCs) with an inverted device configuration. The studies of time-resolved photoinduced absorption of the pristine thin film of poly[(4,4'-bis(2-ethylhexyl)dithieno[3,2-b:2',3'-d]silole)-2,6-diyl-alt-(4,7-bis (2-thienyl)-2,1,3-benzothiadiazole)-5,5'-diyl] (SiPCPDTBT) and the composite thin film of SiPCPDTBT:POSS-C60 indicated efficient electron transfer from SiPCPDTBT to POSS-C60 with inhibited back-transfer. BHJ PSCs made by SiPCPDTBT mixed with POSS-C60 yielded the power conversion efficiencies (PCEs) of 1.50%. Under the same operational conditions, PCEs observed from BHJ PSCs made by SiPCPDTBT mixed with [6,6]-phenyl-C61-butyric acid methyl ester were 0.92%. These results demonstrated that POSS-C60 is a potentially good electron acceptor for inverted BHJ PSCs.展开更多
文摘Windows Server 2003的最大特点是固若金汤的安全性,但是Windows Server 2003安全配置是一项比较有难度的网络技术,而且其默认的安全配置也不一定适合我们的需要,可以通过正确划分文件系统格式、选择稳定的操作系统安装盘、正确设置磁盘的安全性、禁用不必要的服务和修改注册表等方式,对Windows Server 2003安全配置进行再设置。
文摘为提高选煤厂生产的自动化程度,加强对选煤过程的控制,促进选煤厂安全高效生产,保证产品指标的合格稳定。根据斜沟煤矿选煤厂原煤处理量大、介质系统多、设备台数多,不同原煤性质差异大的特点,引进了选煤厂集控操作系统。从集控系统的配置与设置、集控功能的实现和集控在生产过程中的调节3方面进行了论述。2014年上半年销售精煤合格率100%,混煤合格率100%,介耗1.41 kg/t、电耗6.51 k Wh/t。指标证明了该操作法完全适应本厂工艺、煤质特点。
基金supported by the US NSF (DMR-0906898)the Joint Research Fund for Overseas Chinese Scholars, the National Natural Science Foundation of China (5082830)
文摘A polyhedral oligomeric silsesquioxane-[60]fullerene (POSS-C60) dyad was designed and used as a novel electron acceptor for bulk heterojunction (BHJ) polymer solar cells (PSCs) with an inverted device configuration. The studies of time-resolved photoinduced absorption of the pristine thin film of poly[(4,4'-bis(2-ethylhexyl)dithieno[3,2-b:2',3'-d]silole)-2,6-diyl-alt-(4,7-bis (2-thienyl)-2,1,3-benzothiadiazole)-5,5'-diyl] (SiPCPDTBT) and the composite thin film of SiPCPDTBT:POSS-C60 indicated efficient electron transfer from SiPCPDTBT to POSS-C60 with inhibited back-transfer. BHJ PSCs made by SiPCPDTBT mixed with POSS-C60 yielded the power conversion efficiencies (PCEs) of 1.50%. Under the same operational conditions, PCEs observed from BHJ PSCs made by SiPCPDTBT mixed with [6,6]-phenyl-C61-butyric acid methyl ester were 0.92%. These results demonstrated that POSS-C60 is a potentially good electron acceptor for inverted BHJ PSCs.
