The Jiahu site is an early Neolithic settlement,dated to 9000～7800 BP and located in Henan Province.A systematic floatation work was carried out on the site during the 2001 excavation season.Abundant charred plant re...The Jiahu site is an early Neolithic settlement,dated to 9000～7800 BP and located in Henan Province.A systematic floatation work was carried out on the site during the 2001 excavation season.Abundant charred plant remains were recovered,including tubers such as lotus,nuts such as trapa,fruits such as grape,seeds such as wild soybean,and crops such as rice.Various quantitative measurements were made to compare the materials.All of the results show that rice was not significantly abundant in comparison with the other plant remains.Considering that extremely abundant fish bones were also found from the site,the authors come to the conclusion that the subsistence of the Jiahu people relied mainly on fishing,hunting and gathering,and agricultural products gained from rice farming and animal husbandry were only minor supplement to their diet.展开更多
物联网(Internet of Things,IoT)是一种通过各种接入技术将海量电子设备与互联网进行互联的大规模虚拟网络,包括RFID、传感器以及执行器的电子设备通过互联网互联互通,将异构信息汇聚后共同完成某项特定的任务。为了解决物联网规模化运...物联网(Internet of Things,IoT)是一种通过各种接入技术将海量电子设备与互联网进行互联的大规模虚拟网络,包括RFID、传感器以及执行器的电子设备通过互联网互联互通,将异构信息汇聚后共同完成某项特定的任务。为了解决物联网规模化运用中的关键技术,首先探讨了物联网与这些网络的区别,给出了物联网的定义、特征以及参考架构。同时,创新性地提出了区域服务器的概念,并通过本体论知识表达等方法的运用解决了物联网中的"信息孤岛"难题。智能信息处理是物联网的核心内容之一,而物联网的知识表达与情景感知等相关技术是物联网智能信息处理的核心内容。据此,着重分析研究了智能信息处理的信息空间定义、信息量化方法以及信息处理各阶段的主要问题及相应的解决办法。展开更多
文摘The Jiahu site is an early Neolithic settlement,dated to 9000～7800 BP and located in Henan Province.A systematic floatation work was carried out on the site during the 2001 excavation season.Abundant charred plant remains were recovered,including tubers such as lotus,nuts such as trapa,fruits such as grape,seeds such as wild soybean,and crops such as rice.Various quantitative measurements were made to compare the materials.All of the results show that rice was not significantly abundant in comparison with the other plant remains.Considering that extremely abundant fish bones were also found from the site,the authors come to the conclusion that the subsistence of the Jiahu people relied mainly on fishing,hunting and gathering,and agricultural products gained from rice farming and animal husbandry were only minor supplement to their diet.
文摘物联网(Internet of Things,IoT)是一种通过各种接入技术将海量电子设备与互联网进行互联的大规模虚拟网络,包括RFID、传感器以及执行器的电子设备通过互联网互联互通,将异构信息汇聚后共同完成某项特定的任务。为了解决物联网规模化运用中的关键技术,首先探讨了物联网与这些网络的区别,给出了物联网的定义、特征以及参考架构。同时,创新性地提出了区域服务器的概念,并通过本体论知识表达等方法的运用解决了物联网中的"信息孤岛"难题。智能信息处理是物联网的核心内容之一,而物联网的知识表达与情景感知等相关技术是物联网智能信息处理的核心内容。据此,着重分析研究了智能信息处理的信息空间定义、信息量化方法以及信息处理各阶段的主要问题及相应的解决办法。
