Browsing by Subject "Sensors"
Now showing items 1-20 of 55
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Adaptive GLR Change Detector for Increasing Reliability of Vessel Performance System
(2019)In this paper a new adaptive GLR (generalized likelihood ratio) detector which is able to detect the stable periods of the operation of a vessel has been presented. To assess the performance of a vessel, the stable periods ... -
An area-based overlay architecture for scalable integration of sensor networks
(2010)With many different sensor networks being deployed, there will be an increased need to facilitate their uniform and efficient access at a large, perhaps even global, scale. To this end, we present an overlay-based architecture ... -
Asymptotically optimal policies for wireless networks with rechargeable batteries
(2008)We consider the problem of cross-layer resource allocation for single-hop, time-varying, wireless networks operating with rechargeable batteries under general arrival, channel and recharge processes. The objective is to ... -
Automatic steering control of unmanned vehicles
(2000)The problem of robust automatic steering of an autonomous unmanned vehicle is studied. The problem is solved using a robust P-D feedback controller feeding back the path error and the front steering angle. The design goal ... -
A Bayesian methodology for crack identification in structures using strain measurements
(2010)A Bayesian system identification methodology is presented for estimating the crack location, size and orientation in a structure using strain measurements. The Bayesian statistical approach combines information from measured ... -
Bringing IoT and cloud computing towards pervasive healthcare
(2012)Pervasive healthcare applications utilizing body sensor networks generate a vast amount of data that need to be managed and stored for processing and future usage. Cloud computing among with the Internet of Things (IoT) ... -
Combined amperometric and potentiometric hydrogen sensors based on BaCe0.7Zr0.1Y0.2O3-δ proton-conducting ceramic
(2016)The present study aims at the potential application of BaCe0.7Zr0.1Y0.2O3-δ proton-conducting material as an electrolyte for hydrogen sensor operating under potentiometric and amperometric modes. The reason of selection ... -
A completely scalable lumped-circuit model for horizontal and vertical HALL devices
(2007)A completely scalable lumped-circuit model for horizontal and vertical HALL devices is presented therein that can be efficiently implemented in SPICE-like EDA simulators. The model has been employed for the quantitative ... -
Decentralized CUSUM change detection
(2006)We consider the problem of decentralized change detection using the CUSUM test. More than one sensors acquire independent signals and send their quantized version to a fusion center that uses this information to detect a ... -
Demonstration of a Vehicle-to-Infrastructure (V2I) communication network featuring heterogeneous sensors and delay tolerant network capabilities
(2012)The development of applications based over vehicular networks, such as road safety, environmental information etc. require a complete testbed platform for research and evaluation. Such a platform will be provided by NITOS[1] ... -
A demonstration of video over a user centric prioritization scheme for wireless LANs
(2008)Due to the unreliable nature of the wireless medium, provisioning of the Quality of Service (QoS) in wireless LANs is by far more complicated than in wired networks. In this demo we show the efficiency of a new QoS support ... -
Detecting energy-efficient central nodes for cooperative caching in wireless sensor networks
(2013)The deployment of wireless sensor networks in many application areas like environment control, target tracking in battlefields, requires an optimization to the communication among the sensors so as to serve data in short ... -
Development of an advanced embedded system for description of electrophysiological phenomena in ornamental plants by biosignals processing
(2011)Extracellular electrical signals that are produced from plants have different patterns depending on factors that may cause stress such as water deficiency, nutrient shortages, high salinity level in the root environment ... -
EBC: A topology control algorithm for achieving high QoS in sensor networks
(2009)A novel approach for achieving high Quality of Service (QoS) in sensor networks via topology control is introduced and experimentally assessed in this paper. Our approach falls in the broader discipline of graph structural ... -
An electrochemical method for the determination of concentration and diffusion coefficient of ammonia‑nitrogen gas mixtures
(2018)In the present investigation an electrochemical method for the determination of concentration and diffusion coefficient of ammonia in nitrogen (NH3/N2) is proposed by the means of a solid-state amperometric sensor based ... -
An experimental framework for data gathering and analysis in wireless sensor networks
(2011)In the last decade testbeds have been set-up to evaluate network protocols and algorithms under realistic settings. Moreover, wireless sensors have lately been integrated into testbeds in order to simulate application ... -
Exploiting co-location history for efficient service selection in ubiquitous computing systems
(2005)As the ubiquitous computing vision materializes, the number and diversity of digital elements in our environment increases. Computing capability comes in various forms and is embedded in different physical objects, ranging ... -
Galvanomagnetic effects "Sensors based on hall effect"
(2009)The Hall effect is the generation of a transverse electromotive force in a sample carrying an electric current and exposed to perpendicular magnetic field. Depending on the sample geometry, this electromotive force may ... -
General development of a new hall effect sensor
(2011)Silicon Hall plates show an offset of a few millitesla. A large portion of this offset is caused by mechanical stress in the device. The offset can be reduced with a factor 103 to 105 when the spinning - current principle ... -
A hybrid Jiles-Atherton / Stoner-Wohlfarth magnetic hysteresis model for inductive sensors and actuators
(2004)The Jiles-Atherton (JA) theory of hysteresis is currently used in the majority of CAD tools. The JA model provides precise results in the case of poly crystalline, multi-domain magnetic structures, whose flux-reversal is ...