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    WCF后续之旅(13): 创建一个简单的WCF SOAP Message拦截、转发工具[上篇]

    WCF是.NET平台下实现SOA的一种手段,SOA的一个重要的特征就基于Message的通信方式。从Messaging的角度讲,WCF可以看成是对Message进行发送、传递、接收、基础的工具。对于一个消息交换的过程,很多人只会关注message的最初的发送端和最终的接收端。实际上在很多情况下,在两者之间还存在很多的中间结点(Intermediary),这些中间结点在可能在实际的应用中发挥中重要的作用。比如,我们可以创建路由器(Router)进行消息的转发,甚至是Load Balance;可以创建一个消息拦截器(Interceptor)获取request或者response message,并进行Audit、Logging和Instrumentation。今天我们就我们的目光转向这些充当着中间人角色的Intermediary上面来。

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    Google Earth Engine ——数据全解析专辑(BLM AIM TerrADat TerrestrialAIM Point v1)美国西部联邦土地上最广泛的、公开可用的地块测量点数据集!

    Since 2011, the Bureau of Land Management (BLM) has collected field information to inform land health through its Assessment Inventory and Monitoring (AIM) strategy. To date, more than 6,000 terrestrial AIM field plots have been collected over BLM lands. The BLM AIM data archive is updated annually. Standardized core indicators are collected at each plot that are known to be both ecologically relevant and clearly tied to rangeland health. These indicators inform biotic integrity, soil and site stability, and hydrologic function. The terrestrial plot measurements include fractional bare ground cover, vegetation composition and height, plants of management concern, Non-native invasive species, plant canopy gaps, species richness, and soil aggregate stability. AIM represents one of the most extensive, publicly available plot measurement datasets across Western US federal lands, which can be integrated with remotely sensed imagery and other geospatial information for a range of analysis, classification, and validation purposes.

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