Trusted computing,which can effectively increase the credibility of information system,has made great achievements and is in continuous development. For country who is going to strengthen network construction like Chi...Trusted computing,which can effectively increase the credibility of information system,has made great achievements and is in continuous development. For country who is going to strengthen network construction like China,it is an important fundamental supporting technology worth researching. China is in the international forefront in the field of trusted computing. This paper gives comprehensive introductions to the new development and application of key technologies in trusted computing,such as various trusted platform modules(TPM、TCM、TPCM),TCG Software Stack(TSS),trusted cloud server and Trusted Execution Environment(TEE). We illustrate the progressing and application extension of these technologies and also point out some key problems worth studying in the future.展开更多
Urban green spaces have been arisen growing concern responded to the social and environmental costs of urban sprawl. A wide range of planning and policies has been and/or will be designed to protect urban green spaces...Urban green spaces have been arisen growing concern responded to the social and environmental costs of urban sprawl. A wide range of planning and policies has been and/or will be designed to protect urban green spaces and optimize their spatial pattern. A better design or planning of urban green space can make a major contribution to quality of environment and urban life, and furthermore can decide whether we can have a sustainable development in the urban area. Information about the status quo of urban green spaces can help planners design more effectively. However, how to quantify and capture such information will be the essential question we face. In this paper, to quantify the urban green space, a new method comprising gradient analysis, landscape metrics and GIS was developed through a case of Jinan City. The results demonstrate: 1) the gradient analysis is a valid and reliable instrument to quantify the urban green space spatial pattern precisely; 2) using moving window, explicit landscape metrics were spatially realized. Compared with quantifying metrics in the entire landscape, it would be better to link pattern with process and establish an important basis for analyzing the ecological and socioeconomic functions of green spaces.展开更多
Along with the development of Internet, geo-information sharing and Open GIS are of increasing importance for GIS application fields. Southwestern China consists of several provinces or districts, they are Sichuan, Gu...Along with the development of Internet, geo-information sharing and Open GIS are of increasing importance for GIS application fields. Southwestern China consists of several provinces or districts, they are Sichuan, Guizhou, Yunnan, Chongqing, etc. The economic and information cooperation among them are of significance. The pilot platform for resource and environment geo-information sharing for the southwestern China based on Web services, OGC(Open GIS Consortium) WFS(Web feature service) is constructed. Via this pilot platform, a loose information sharing mode can be implemented to improve their cooperation level.展开更多
The real-time informational monitoring system is adopted in the construction of middle tower foundation of Taizhou Bridge for the first time. The geometric state of the caisson, the stress of upstream and downstream a...The real-time informational monitoring system is adopted in the construction of middle tower foundation of Taizhou Bridge for the first time. The geometric state of the caisson, the stress of upstream and downstream anchorage cables, underwater topography, the drag forces of the caisson cutting edge and frictional resistances of the sidewall and etc. are monitored in real time. According to the synthesized data analysis and decision-making system, the spatial states of the caisson are adjusted in time to locate and embed the deep water caisson precisely. The offset error of the caisson is less than 30 cm and the vertical error is 1/363 at the final stage. The control technology for construction of large caisson under deep water is concluded and would be helpful for the construction of bridge foundation in the future.展开更多
Nowadays, cities are the main living environment of human beings. Rapid urbanization is associated with a variety of issues: population explosion, urban heat island effect, greenhouse gases emissions, energy crisis, ...Nowadays, cities are the main living environment of human beings. Rapid urbanization is associated with a variety of issues: population explosion, urban heat island effect, greenhouse gases emissions, energy crisis, climate change and so on. To deal with the challenges from the huge energy consumption and GHGs (greenhouse gases) emission, more and more attention has been paid to low carbon eco-city in China. In this research, the whole process is linked by low carbon eco-city development. High-resolution thermal IR (infrared) satellite remote-sensing is introduced to land use and urban heat island monitoring to meet the requirement of higher accuracy. GIS (geo-information science) technology provides a framework for collecting, processing, managing, analyzing and sharing spatial and temporal data. It has been used in spatial and temporal database management and analysis in low carbon eco-city study. The integrated geo-information system proposed in this research, which will be introduced to various government agencies in China, could enrich the concepts and means for the construction of low carbon eco^city.展开更多
With the constructions of "intelligence city", intelligent life quietly came to the people. As the "cell" of the city, the construction of intelligence community arises. Resident service system and e-government ap...With the constructions of "intelligence city", intelligent life quietly came to the people. As the "cell" of the city, the construction of intelligence community arises. Resident service system and e-government application system have been used in the traditional information community, but these systems are independent of each other, lack of interconnectedness, which results in the phenomenon of information isolated island. Intelligence community integrated information service platform can integrate information service resources and provide residents with efficient and convenient life. From the meaning, operation mode, we can design the cooperative, open and extensible system architecture.展开更多
With the acceleration of the process of social information, information resources construction has become an important part of national development strategies. The library is one of the main information resources cons...With the acceleration of the process of social information, information resources construction has become an important part of national development strategies. The library is one of the main information resources constructions and is an important information resource position of social construction. Computer applications in the book management, greatly improve the management efficiency of the library, and have changed the traditional management service model. Universal service network extends to every comer make reader can read everywhere, breaking the boundaries of time and space and also greatly promoting the modernization of the library. Library modernization, according to the characteristics of the objective law refers library work practices, uses modem technological conditions, rational organization of scientific management of library work, to maximize efficiency and quality and effectively complete the task library. Library essence of modem management techniques is to achieve the modernization of libraries and library management modernization. Modem library information system can be divided into three aspects of building automation libraries, library networks and digital libraries. Digital library management directly reflects a country' s level of a regional knowledge economy and information industry development, and digital network resource management in the book gradually dominates.展开更多
In terms of policies to Chinese enterprises income tax system, especially nowadays two income tax systems within domestic and foreign enterprises, their weakness is becoming more and more apparent. In order to perfect...In terms of policies to Chinese enterprises income tax system, especially nowadays two income tax systems within domestic and foreign enterprises, their weakness is becoming more and more apparent. In order to perfect China's future tax system, it is supposed to combine the two income tax systems within domestic and foreign enterprises.展开更多
基金supported by the National Natural Science Foundation of China (Grant NO.61332019, NO.61402342, NO.61202387)the National Basic Research Program of China ("973" Program) (Grant No.2014CB340600)the National High–Tech Research and Development Program of China ("863" Program) (Grant No.2015AA016002)
文摘Trusted computing,which can effectively increase the credibility of information system,has made great achievements and is in continuous development. For country who is going to strengthen network construction like China,it is an important fundamental supporting technology worth researching. China is in the international forefront in the field of trusted computing. This paper gives comprehensive introductions to the new development and application of key technologies in trusted computing,such as various trusted platform modules(TPM、TCM、TPCM),TCG Software Stack(TSS),trusted cloud server and Trusted Execution Environment(TEE). We illustrate the progressing and application extension of these technologies and also point out some key problems worth studying in the future.
文摘Urban green spaces have been arisen growing concern responded to the social and environmental costs of urban sprawl. A wide range of planning and policies has been and/or will be designed to protect urban green spaces and optimize their spatial pattern. A better design or planning of urban green space can make a major contribution to quality of environment and urban life, and furthermore can decide whether we can have a sustainable development in the urban area. Information about the status quo of urban green spaces can help planners design more effectively. However, how to quantify and capture such information will be the essential question we face. In this paper, to quantify the urban green space, a new method comprising gradient analysis, landscape metrics and GIS was developed through a case of Jinan City. The results demonstrate: 1) the gradient analysis is a valid and reliable instrument to quantify the urban green space spatial pattern precisely; 2) using moving window, explicit landscape metrics were spatially realized. Compared with quantifying metrics in the entire landscape, it would be better to link pattern with process and establish an important basis for analyzing the ecological and socioeconomic functions of green spaces.
基金Supported by the International Cooperation Project of Ministry of Science and Technology of China (No.2004DF1003589) .
文摘Along with the development of Internet, geo-information sharing and Open GIS are of increasing importance for GIS application fields. Southwestern China consists of several provinces or districts, they are Sichuan, Guizhou, Yunnan, Chongqing, etc. The economic and information cooperation among them are of significance. The pilot platform for resource and environment geo-information sharing for the southwestern China based on Web services, OGC(Open GIS Consortium) WFS(Web feature service) is constructed. Via this pilot platform, a loose information sharing mode can be implemented to improve their cooperation level.
基金National Science and Technology Support Program of China ( No. 2009BAG15B02)Key Programs for Science and Technology Development of Chinese Transportation Industry( No. 2008-353-332-150)
文摘The real-time informational monitoring system is adopted in the construction of middle tower foundation of Taizhou Bridge for the first time. The geometric state of the caisson, the stress of upstream and downstream anchorage cables, underwater topography, the drag forces of the caisson cutting edge and frictional resistances of the sidewall and etc. are monitored in real time. According to the synthesized data analysis and decision-making system, the spatial states of the caisson are adjusted in time to locate and embed the deep water caisson precisely. The offset error of the caisson is less than 30 cm and the vertical error is 1/363 at the final stage. The control technology for construction of large caisson under deep water is concluded and would be helpful for the construction of bridge foundation in the future.
文摘Nowadays, cities are the main living environment of human beings. Rapid urbanization is associated with a variety of issues: population explosion, urban heat island effect, greenhouse gases emissions, energy crisis, climate change and so on. To deal with the challenges from the huge energy consumption and GHGs (greenhouse gases) emission, more and more attention has been paid to low carbon eco-city in China. In this research, the whole process is linked by low carbon eco-city development. High-resolution thermal IR (infrared) satellite remote-sensing is introduced to land use and urban heat island monitoring to meet the requirement of higher accuracy. GIS (geo-information science) technology provides a framework for collecting, processing, managing, analyzing and sharing spatial and temporal data. It has been used in spatial and temporal database management and analysis in low carbon eco-city study. The integrated geo-information system proposed in this research, which will be introduced to various government agencies in China, could enrich the concepts and means for the construction of low carbon eco^city.
文摘With the constructions of "intelligence city", intelligent life quietly came to the people. As the "cell" of the city, the construction of intelligence community arises. Resident service system and e-government application system have been used in the traditional information community, but these systems are independent of each other, lack of interconnectedness, which results in the phenomenon of information isolated island. Intelligence community integrated information service platform can integrate information service resources and provide residents with efficient and convenient life. From the meaning, operation mode, we can design the cooperative, open and extensible system architecture.
文摘With the acceleration of the process of social information, information resources construction has become an important part of national development strategies. The library is one of the main information resources constructions and is an important information resource position of social construction. Computer applications in the book management, greatly improve the management efficiency of the library, and have changed the traditional management service model. Universal service network extends to every comer make reader can read everywhere, breaking the boundaries of time and space and also greatly promoting the modernization of the library. Library modernization, according to the characteristics of the objective law refers library work practices, uses modem technological conditions, rational organization of scientific management of library work, to maximize efficiency and quality and effectively complete the task library. Library essence of modem management techniques is to achieve the modernization of libraries and library management modernization. Modem library information system can be divided into three aspects of building automation libraries, library networks and digital libraries. Digital library management directly reflects a country' s level of a regional knowledge economy and information industry development, and digital network resource management in the book gradually dominates.
文摘In terms of policies to Chinese enterprises income tax system, especially nowadays two income tax systems within domestic and foreign enterprises, their weakness is becoming more and more apparent. In order to perfect China's future tax system, it is supposed to combine the two income tax systems within domestic and foreign enterprises.