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In this paper, we study the problem of data collection for monitoring traffic condition with compressed sensing (CS) in vehicular ad-hoc networks (VANETs). Unlike the conventional approaches, which require uniform sampling of the velocities of the vehicles, we propose a scheme that combines in-network data aggregation and compressed sensing technique based on random walk for data gathering in VANETs...
Utilizing catheters with unchangeable distal tip, traditional endovascular minimally invasive surgery is manually performed by surgeons present in an operating room filled with X-ray radiation. It has many disadvantages, such as poor maneuverability, radiation injury and undesirable interactivity, Thus it is difficult to guarantee the safety and efficiency. In order to improve these limitations, this...
Acidic light: The reaction of the pincer‐type cyclometalated platinum(II) complex [PtCl(η3‐N C N)] with an N‐heterocyclic carbene (NHC) led to the [Pt(η2‐N C N)(NHC)2]+ complex with a pendent pyridyl group, which can be protonated by a variety of acidic vapors. This protonation switches the solid‐state phosphorescence on (see graphic).
In the application of target tracking based on dynamic convey tree-based collaboration (DCTC) in wireless sensor networks, collisions and interferences among nodes pose a challenge for data aggregation. In this paper, we refine slot allocation to the nodes in dynamic convey tree and design an energy efficient MAC protocol called D-TDMA, which avoids collisions and interferences and allocates contiguous...
Intrusion Detection is an indispensable component of Network Security. Because exists the problems of the high false positives rate and low detection efficiency in the current intrusion detection system, in this paper, we propose a hybrid intrusion detection model and improve intrusion detection system analyzer, applying the Data fusion and data mining techniques to intrusion detection systems. We...
Existing approaches to 3D input on wall-sized displays include tracking users with markers, using stereo- or depth-cameras or have users carry devices like the Nintendo Wiimote. Markers makes ad hoc usage difficult, and in public settings devices may easily get lost or stolen. Further, most camera-based approaches limit the area where users can interact.
A community intrusion detection and pre-warning system based on wireless mesh network is presented in this paper. This system is composed of ARM (advanced RISC Machines) data acquisition nodes, wireless mesh network and control centre. The flame, smog and infrared signal of human can be detected by ARM nodes, and video and audio signal is collected and transmitted to control centre by wireless mesh...
Considering the issues that the sewage treatment process is a complicated and nonlinear system, it is very difficult to found the process model to describe it, and the key parameter of sewage treatment quality can not be detected on-line, a soft sensor modeling method based on wavelet neural network is presented. The wavelet network structure for soft sensor of sewage treatment quality is established...
Considering the issues that the relationship between the submarine oil pipelines corrosion degree and detection information of sensor is a complicated and nonlinear and the chaos genetic algorithm neural network has the ability of strong nonlinear function approach and the feature of global optimization, in this paper, a detection method of submarine oil pipelines corrosion degree based on chaos genetic...
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