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“Invisible eavesdropping” in this paper means that some applications call the mobile phone's microphone module and gather the user's voice and transmit information illegally when the screen is locked or the users are playing games and completely unaware of the situation. Based on idea of “real-time monitoring” and “active protection”, a scheme was proposed in this paper using the access authority...
An electronic nose principally composed of a photo ionization detector (PID) was developed for rapid detection of volatile chlorinated hydrocarbons (VCHs) in contaminated soil. Interference gases such as benzene homologues were removed with a halogenated hydrocarbon RAE-SEP tube and the removal effect was estimated with gas chromatography (GC). Different concentrations of perchloroethylene (PCE) and...
Wireless Sensor Networks (WSNs) are being used in a variety of applications including environmental monitoring, event detection, object tracking, and healthcare applications. Network management of WSNs is one of the key practical challenges that arise from the increasing number of applications and technologies deployed. This work presents the demonstration proposal for a web-based integrated network...
Ground subsidence in mining area does not only seriously damage land resource, surface engineering project, ground facilities and the surrounding environment, but also badly influence people's work and lives and greatly hinder the economic development in the mining area. In this paper, D-InSAR technology is used to research the land subsidence trend of Tangshan City from the year 1997 to 2004. Analyzing...
Mineral resource is the important material base for the humanity livelihood and development. But, it is unavoidable that development of mineral resources could cause a certain extent of destruction on ecological environment, In order to development mineral resources reasonably and prevent environmental problems effectively, carrying on the effective monitor to the environment's present situation and...
It is discussed in this paper about how to use MSS, TM/ETM and CBERS-2 images to detect dynamically the ground sunk seeper in Kailuan Caol Mine, Which area ranging from E118deg20' ~~ 118deg34' to N39deg33'~~ 39deg46'. By extracting the 4 temporal RS images, the dynamic information on 28 years of ground sunk seeper in KaiLuan Coal Mine is achieved. The result shows that RS technology works very well...
Agreement-based resource management is becoming the foundation of grid system. Since the grid resource management encompasses a wide range of different scenarios, the decision making for service level agreement is a complicated procedure. Traditional resource management can not meet the new requirements. In this paper, we analyze and categorize the situations of resource availabilities and requirements...
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