When it comes to international mergers and acquisitions(M&A),2013 was a record-breaking year for Chinese companies as US$96.4 billion of cross-border transaction,out of which US$61.9 billion was outbound investmen...When it comes to international mergers and acquisitions(M&A),2013 was a record-breaking year for Chinese companies as US$96.4 billion of cross-border transaction,out of which US$61.9 billion was outbound investment,was recorded,an 8.8 percent increase year on year,according to data from Thomsonreuters.State-owned energy giants were the top players in cross-border M&A.Oil and energy remained the top destination for Chinese investment,but private companies also showed their appetite for overseas acquisition,among which Chinese company Shuanghui Group sealed the biggest M&A deal in the United States by a Chinese company.展开更多
Vodafone已经推出了在美国使用的、Verizon Wireless的EVDO网络上的高速数据卡。在欧洲、日本和新西兰Vodafone的客户都可以接入到Vodafone WCDMA网络，当客户在美国旅游的时候，客户只需要拿掉Vodafone Mobile Connect 3G／GPRS数据卡...Vodafone已经推出了在美国使用的、Verizon Wireless的EVDO网络上的高速数据卡。在欧洲、日本和新西兰Vodafone的客户都可以接入到Vodafone WCDMA网络，当客户在美国旅游的时候，客户只需要拿掉Vodafone Mobile Connect 3G／GPRS数据卡，取而代之使用Vodafone Mobile Connect EVDO数据卡，然后使用已有的Vodafone移动连接软件就可以接入到Verizon Wireless的EVDO网络。展开更多
Power loss sometimes needs particular consideration in coal mine. This paper analyzes the main three parts of power consuming of RS 485 system, that is quiescent power consuming, transmission power consuming and perip...Power loss sometimes needs particular consideration in coal mine. This paper analyzes the main three parts of power consuming of RS 485 system, that is quiescent power consuming, transmission power consuming and peripheral equipment power consuming. How to reduce the power consuming in RS 485 designs is introduced, and also the method of hardware and software design is presented including choosing low power transceiver, optimizing communication data structure, optimizing communication working mode.展开更多
The integration of remote sensing (RS) with geographical information system (GIS) is a hotspot in geographical information science.A good database structure is important to the integration of RS with GIS,which should ...The integration of remote sensing (RS) with geographical information system (GIS) is a hotspot in geographical information science.A good database structure is important to the integration of RS with GIS,which should be beneficial to the complete integration of RS with GIS,able to deal with the disagreement between the resolution of remote sensing images and the precision of GIS data,and also helpful to the knowledge discovery and exploitation.In this paper,the database structure storing the spatial data based on semantic network is presented.This database structure has several advantages.Firstly,the spatial data is stored as raster data with space index,so the image processing can be done directly on the GIS data that is stored hierarchically according to the distinguishing precision.Secondly,the simple objects are aggregated into complex ones.Thirdly,because we use the indexing tree to depict the relationship of aggregation and the indexing pictures expressed by 2_D strings to describe the topology structure of the objects,the concepts of surrounding and region are expressed clearly and the semantic content of the landscape can be illustrated well.All the factors that affect the recognition of the objects are depicted in the factor space,which provides a uniform mathematical frame for the fusion of the semantic and non_semantic information.Lastly,the object node,knowledge node and the indexing node are integrated into one node.This feature enhances the ability of system in knowledge expressing,intelligent inference and association.The application shows that this database structure can benefit the interpretation of remote sensing image with the information of GIS.展开更多
Based on remote sensing technique,using 1990's Landsat TM data and 2000's Landsat ETM data,the authors conducts the comparative study of mainstream area of Songhua River by means of human-computer inter-action...Based on remote sensing technique,using 1990's Landsat TM data and 2000's Landsat ETM data,the authors conducts the comparative study of mainstream area of Songhua River by means of human-computer inter-action method.The results show that the area of Songhua River mainstream was 738 102 km 2 in 1990,and was 810.451 km 2 in 2000.From 1990 to 2000,the increased area of river mainstream is up to 72.349 km2 due to soil erosion and water loss.Meanwhile,the dynamic changes of surrounding vegetation cover are also studied.It is estimated that the trend of surrounding soil erosion and water loss of Songhua River mainstream becomes worse in Jilin Province.展开更多
文摘When it comes to international mergers and acquisitions(M&A),2013 was a record-breaking year for Chinese companies as US$96.4 billion of cross-border transaction,out of which US$61.9 billion was outbound investment,was recorded,an 8.8 percent increase year on year,according to data from Thomsonreuters.State-owned energy giants were the top players in cross-border M&A.Oil and energy remained the top destination for Chinese investment,but private companies also showed their appetite for overseas acquisition,among which Chinese company Shuanghui Group sealed the biggest M&A deal in the United States by a Chinese company.
文摘Vodafone已经推出了在美国使用的、Verizon Wireless的EVDO网络上的高速数据卡。在欧洲、日本和新西兰Vodafone的客户都可以接入到Vodafone WCDMA网络，当客户在美国旅游的时候，客户只需要拿掉Vodafone Mobile Connect 3G／GPRS数据卡，取而代之使用Vodafone Mobile Connect EVDO数据卡，然后使用已有的Vodafone移动连接软件就可以接入到Verizon Wireless的EVDO网络。
文摘Power loss sometimes needs particular consideration in coal mine. This paper analyzes the main three parts of power consuming of RS 485 system, that is quiescent power consuming, transmission power consuming and peripheral equipment power consuming. How to reduce the power consuming in RS 485 designs is introduced, and also the method of hardware and software design is presented including choosing low power transceiver, optimizing communication data structure, optimizing communication working mode.
文摘The integration of remote sensing (RS) with geographical information system (GIS) is a hotspot in geographical information science.A good database structure is important to the integration of RS with GIS,which should be beneficial to the complete integration of RS with GIS,able to deal with the disagreement between the resolution of remote sensing images and the precision of GIS data,and also helpful to the knowledge discovery and exploitation.In this paper,the database structure storing the spatial data based on semantic network is presented.This database structure has several advantages.Firstly,the spatial data is stored as raster data with space index,so the image processing can be done directly on the GIS data that is stored hierarchically according to the distinguishing precision.Secondly,the simple objects are aggregated into complex ones.Thirdly,because we use the indexing tree to depict the relationship of aggregation and the indexing pictures expressed by 2_D strings to describe the topology structure of the objects,the concepts of surrounding and region are expressed clearly and the semantic content of the landscape can be illustrated well.All the factors that affect the recognition of the objects are depicted in the factor space,which provides a uniform mathematical frame for the fusion of the semantic and non_semantic information.Lastly,the object node,knowledge node and the indexing node are integrated into one node.This feature enhances the ability of system in knowledge expressing,intelligent inference and association.The application shows that this database structure can benefit the interpretation of remote sensing image with the information of GIS.
文摘Based on remote sensing technique,using 1990's Landsat TM data and 2000's Landsat ETM data,the authors conducts the comparative study of mainstream area of Songhua River by means of human-computer inter-action method.The results show that the area of Songhua River mainstream was 738 102 km 2 in 1990,and was 810.451 km 2 in 2000.From 1990 to 2000,the increased area of river mainstream is up to 72.349 km2 due to soil erosion and water loss.Meanwhile,the dynamic changes of surrounding vegetation cover are also studied.It is estimated that the trend of surrounding soil erosion and water loss of Songhua River mainstream becomes worse in Jilin Province.
