Search
Results
-
Stability analysis of an active marble quarry by DEM modeling
(2009)Proceedings of the International Conference on Rock Joints and Jointed Rock MassesConference Paper -
ArDM, a 1t liquid argon detector for dark matter searches
(2009)PoS: Proceedings of ScienceWeak Interacting Massive Particles (WIMPs) are prime candidates for the dark matter in the universe. The ArDM experiment consists of a 1t liquid argon detector to search for WIMPs interacting elastically with argon nuclei. Both scintillation light and ionization charge from nuclear recoils are measured. The 128 nm light is reflected and shifted into the visible range by wavelength shifting foils and detected by 8" photomultipliers immersed ...Conference Paper -
Adaptive performance optimization for large-scale traffic control systems
(2009)IFAC Proceedings Volumes ~ Proceedings of the 12th IFAC Symposium on Transportation Systems (CTS 2009)The majority of practical Large-Scale Traffic Control Systems (LSTCSs) requires the optimization (fine-tuning) of their design parameters. A tremendous amount of human effort and time is spent for optimization of the overall LSTCS, which is usually performed by experienced personnel in the lack of an automated – well established – systematic approach. This paper, investigates the efficiency of the Adaptive Fine-Tuning algorithm, when ...Conference Paper -
-
A rolling-horizon quadratic-programming approach to the signal control problem in large-scale congested urban road networks
(2008)Proceedings of 10th International Conference on Applications of Advanced Technologies in Transportation 2008The paper investigates the efficiency of a new signal control methodology, which offers a computationally feasible technique for real-time network-wide signal control in large- scale urban traffic networks and is applicable also under congested traffic conditions. In this methodology, the traffic flow process is modeled by use of the so-called store-and-forward modeling paradigm. The overall problem of network-wide signal control is ...Conference Paper -
CARTOSAT-1 Stereo Imagery
(2007)International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesCARTOSAT-1 satellite was launched in May 2005; the optical sensor is configured with two pushbroom cameras, namely Aft and Fore, tilted in along track direction by -5° and +26°, providing stereoscopic imagery in the same pass with a ground resolution of 2.5 m. Within the ISRO-ISPRS Cartosat Scientific Assessment Program (C-SAP), investigations were carried out on a stereopair belonging to the test field called TS-6, acquired on 8th June ...Conference Paper -
Ray Tracing for Modeling of Small Footprint Airborne Laser Scanning Returns
(2007)International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesAirborne Laser Scanning (ALS) has been established as a valuable tool for the estimation of biophysical canopy variables, such as treeheight and vegetation density. However, up to now most approaches are built upon empirical stand based methods for linking ALS datawith the relevant canopy properties estimated by field work. These empirical methods mostly comprise regression models, where effectsof site conditions and sensor configurations ...Conference Paper -
Bibliometric Analysis as a new Business Area in Libraries: Theory and Practice
(2006)Proceedings of the Asia-Pacific Conference on Library & Information Education & Practice 2006 (A-LIEP 2006). Preparing Information Professionals for Leadership in New AgeConference Paper -
Parallel Estimation and Control Architectures for Deep-Space Formation Flying Spacecraft
(2006)2006 IEEE Aerospace ConferenceThe formation flying of precisely controlled spacecraft in deep space can be used to implement optical instruments capable of imaging planets in other solar systems. The distance of the formation from Earth necessitates a significant level of autonomy and each spacecraft must base its actions on its estimates of the location and velocity of the other spacecraft. Precise coordination and control is the key requirement in such missions and ...Conference Paper -
Advanced traffic control strategies and their potential application in Greece
(2006)Proceedings of the 3rd International Congress on Transportation ResearchConference Paper