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Agriculture cropland soil moisture information plays a significant role in the management of agricultural policy, food security, and food prices. For better utilizing and reusing the agricultural information and knowledge, US Departments of Agriculture (USDA) National Agricultural Statistics Service (NASS) monitors US crop soil moisture condition using weekly field observations for counties in 45...
Agricultural drought greatly impacts the crop yield. Monitoring agricultural drought can deliver critical information to farmers on when, where and how much to irrigate. However, precisely monitoring which requires many kinds of data sources and data fusion and mining is still a huge challenge for scientists. In recent years, many data sources like remote sensed hyperspectral images are released online...
The Pub/Sub, short for Publish-Subscribe, is a flexible mechanism perferred by many users who'd like to passively know the changes of situation. Once a new message is published by a provider, all the subscribers to the specific kind of messages will receive the message and make corresponding responses. In agricultural crop monitoring, such mechanism is very helpful in enhancing the efficiency of message...
The longitudinal survey is conducted to collect responses from the target population repeatedly over long periods of time, aiming to analyze and monitor the response development as time goes on. However so far systematic detection methodology for survey response changes is still in its infancy. In this regard, this paper sheds light on this field by applying statistical process control (SPC) methodology...
This paper introduces the background, illustrates the hardware structure and software features of malicious base station, explains its work principle, presents a method of detecting malicious base station, analyses the experiment and evaluates the experimental results to verify the reliability of this method. Finally proposes the future work.
For thermal design and assembly reason, there inevitably exist thermal aperture arrays and slots on computer enclosure, so electromagnetic pulse will get into enclosure through these apertures, which is called “back-door coupling”. This paper simulates and computes the computer enclosure's apertures coupling effects caused by electromagnetic pulse by using Transmission Line Matrix Method (TLM). Change...
As MapReduce becomes more and more popular in data processing applications, the demand for Hadoop clusters grows. However, Hadoop is incompatible with existing cluster batch job queuing systems and requires a dedicated cluster under its full control. Hadoop also lacks support for user access control, accounting, fine-grain performance monitoring and legacy batch job processing facilities comparable...
An SOA-based emergency logistics system based on GPS / GIS is presented for that the emergency logistics system can not meet the requirement of managing public emergency frequently. The intelligent vehicle system based on GPS and monitoring platform is designed for real-time data interaction. Ontology-based emergency logistics repository, emergency logistics framework, early-warning rule base and...
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