the proceedings contain 131 papers and 2 PowerPoint presentations. the topics discussed include: dynamic and adaptive multi-point fiber optic acoustic emission sensor (FAESENSE™) system;review of fiber optic sensors f...
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ISBN:
(纸本)9781450323307
the proceedings contain 131 papers and 2 PowerPoint presentations. the topics discussed include: dynamic and adaptive multi-point fiber optic acoustic emission sensor (FAESENSE™) system;review of fiber optic sensors for monitoring of concrete structures in the nuclear industry;investigation on moisture monitoring in masonry stones using a wireless LC resonant sensor;sensing sheet for SHM based on large area electronics;an amplifier design for an extensometer in high temperature deformation monitoring;experimental study of a soil-embedded fibre optic strain sensor crossing a shear zone;design and experimental validation of low-frequency wireless vibration data acquisition system;FBG based embeddable strain sensor: high strain measurement;design of low cost wireless sensor network for health monitoring of larger structures;wireless strain measurements in shield-driven tunnels;and wireless sensor network systems for structural health monitoring of building structures.
the proceedings contain 14 papers. the special focus in this conference is on themes and Issues. the topics include: Using deception to shield cyberspace sensors;botnets as an instrument of warfare;lightweight intrusi...
ISBN:
(纸本)9783642248634
the proceedings contain 14 papers. the special focus in this conference is on themes and Issues. the topics include: Using deception to shield cyberspace sensors;botnets as an instrument of warfare;lightweight intrusion detection for resource-constrained embedded control systems;a plant-wide industrial process control security problem;identifying vulnerabilities in SCADA systems via fuzz-testing;security analysis of VPN configurations in industrial control environments;implementing novel defense functionality in MPLS networks using hyperspeed signaling;creating a cyber moving target for critical infrastructure applications;an evidence-based trust assessment framework for critical infrastructure decision making;enhancing the usability of the commercial mobile alert system;real-time detection of covert channels in highly virtualized environments;analyzing cyber-physical attacks on networked industrial control systems;using an emulation testbed for operational cyber security exercises and analyzing intelligence on WMD attacks using threaded event-based simulation.
Recent advances in the technology of wireless electronic devices have made possible to build ad-hoc Wireless sensor Networks (WSNs) using inexpensive nodes consisting of low power processors, a modest amount of memory...
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ISBN:
(纸本)9781612081717
Recent advances in the technology of wireless electronic devices have made possible to build ad-hoc Wireless sensor Networks (WSNs) using inexpensive nodes consisting of low power processors, a modest amount of memory and simple wireless transceivers. Over the last years, many novel applications have been envisaged for distributed WSNs in the area of monitoring, communication and control. One of the key enabling and indispensable services in WSNs is localization (i.e, positioning), given that the availability of nodes' location may represent the fundamental support for various protocols (e.g, routing) and applications (e.g, habitat monitoring). Furthermore, WSNs are now being increasingly used for real-time applications having stringent Quality-of- Service (QoS) requirements, such as timeliness and reliability. Towards this end, Zigbee/IEEE 802.15.4 and the Cluster-Tree model are considered among the most promising candidates. Building from (i) our proposed Enhanced Steepest Descent (ESD) algorithm to solve positioning of nodes in a fully distributed fashion, (ii) the mechanism to evaluate at run-time the site-specific parameters for the correct operation of the ESD (i.e, RSSI-based ranging) and (iii) the recent availability of Zigbee/IEEE 802.15.4 implementations over TinyOS, the main output of this paper is to outline how a positioning service can be fully integrated into a communication protocol stack.
We present an integrated voltage sensor dedicated to fuel cells monitoring. this sensor is based on Giant Magneto Resistances (GMR) as sensitive elements coupled to a micron size integrated metallic line which creates...
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the proceedings contain 24 papers. the topics discussed include: automatic base station deployment algorithm in next generation cellular networks;modeling the content popularity evolution in video-on-demand systems;mo...
ISBN:
(纸本)9783642209307
the proceedings contain 24 papers. the topics discussed include: automatic base station deployment algorithm in next generation cellular networks;modeling the content popularity evolution in video-on-demand systems;modeling self-organized application spreading;passive access capacity estimation through the analysis of packet bursts;self-repairing clusters for time-efficient and scalable actor-fault-tolerance in wireless sensor and actor networks;bit-error analysis in WiFi networks based on real measurements;data-rate and queuing method optimization for Internet-working medical applications;towards sustainable broadband communication in rural areas;remediating anomalous traffic behavior in future networked environments;and a min-max hop-count based self-discovering method of a bootstrap router for the bootstrap mechanism in multicast routing.
the presence of moisture in the masonry structures has a great impact on the strength and integrity of building. Moisture controlling paradigms for preventing structural deterioration and performance degradation from ...
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ISBN:
(纸本)9781450323307
the presence of moisture in the masonry structures has a great impact on the strength and integrity of building. Moisture controlling paradigms for preventing structural deterioration and performance degradation from the water content require effective moisture monitoring systems. However, most moisture sensors require the use of wires. this paper presents a wireless, passive inductor-capacitor (LC) resonant circuit technique for measuring the moisture level within application to heritage masonry building stones. the sensor monitors capacitance changes between embedded electrodes, induced by the variation of the effective dielectric constant due to the presence of water in the stone. the corresponding change of the resonant frequency can therefore be used to monitor the water content of the stone. the operation of the sensor was demonstrated with dry sandstone samples placed in a water bath, allowing moisture to be transported into the sandstone surrounding the electrodes of the capacitor. the rise in capacitance resulted in a resonant frequency decrease from 5.96 MHz to 5.21 MHz while the moisture RH sensor indicated the relative humidity inside the stone changed from about 10% to 100%. the moisture variations were investigated for boththe wetting and drying cycling processes. the RH sensor was found to be saturated at 100% over a wide range of stone moisture conditions. Since the electrical signal can be inductively transmitted between two spiral inductors in separate positions, wireless monitoring of the civil structural health becomes possible without requiring batteries.
Remote control based on an adaptive predictive control scheme over wireless sensor and actuator networks is considered. To cope with possible faults on the forward channel linking the base station and actuator nodes a...
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Radio interference drastically affects the performance of sensor-net communications, leading to packet loss and reduced energy-efficiency. As an increasing number of wireless devices operates on the same ISM frequenci...
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To acquire continuous observation results is an essential demand to environmental monitoring. Wireless sensor networks (WSNs), composed of many tiny sensing equipment, give a good solution to collect continuously temp...
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