HyperDB:A Hyperspectral Land Class Database Designed for an Image Processing System China's Land System and Its Extraordinary Infrastructure Development A Comparative Study of Land Economy under Different Ownerships in China Land use scenarios simuLation in ecoLogicaL conservation area:a case study of miyun district;Beijing A Holistic Energy-Efficient Approach for a Processor-Memory System MIX-RS:A Multi-Indexing System Based on HDFS for Remote Sensing Data Storage Combating climate change calls for a global technological cooperation system built on the concept of ecological civilization ReseaRch on the Design of inteRnational coopeRation system to supply global public gooDs:with a View on the Route selection foR china‘s paRticipation Constructing ecological system of digital culture industries in the new era 数字对象唯一标识Handle System