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Wind Effect on PV Module Temperature: Analysis of Different Techniques for an Accurate Estimation
(2013)Energy Procedia ~ European Geosciences Union General Assembly 2013, EGUDivision Energy, Resources & the Environment, EREPhotovoltaic (PV) module temperature predictions are crucial to accurately assess the efficiency of PV installations. In this study we focus on the cooling effect of wind on PV cell temperature. We show that for most of the technologies installed at a PV test facility in Bolzano (Italy), models including wind data predict PV cell temperature better than standard approaches which do not include wind data. Moreover, we show that wind data ...Conference Paper -
Geomechanical modeling of fault responses and the potential for notable seismic events during underground CO2 injection
(2013)Energy Procedia ~ GHGT-11 Proceedings of the 11th International Conference on Greenhouse Gas Control TechnologiesWe summarize a number of recent modeling studies related to the potential for fault reactivations and induced seismicity during underground CO2 injection. The model simulations were conducted using coupled multiphase fluid flow and geomechanics, including fault-frictional weakening enabling analysis of sudden (seismic) fault rupture, with some of the numerical analyses extended to dynamic modeling of seismic source, wave propagation, and ...Conference Paper -
Self-organisation of motion features with a temporal asynchronous dynamic vision sensor
(2013)Biologically Inspired Cognitive ArchitecturesNeural circuits closer to the periphery tend to be organised in a topological way, i.e. stimuli which are spatially close tend to be mapped onto neighbouring processing neurons. The goal of this study is to show how motion features (optic-flow), which have an inherent spatio-temporal profile, can be self-organised using correlations of precise spike intervals. The proposed framework is applied to the spiking output of an asynchronous ...Conference Paper -
Scripting Cultures, Parametric Urbanism and Adaptive Ecologies
(2013)Workshop Proceedings of the 9th International Conference on Intelligent EnvironmentsThis paper aims to examine how the role of the architect has changed as we shifted to the process of design that Kostas Terzidis calls “Algorithmic Architecture”. The relationships between subjects and objects have changed and thanks to Computer-Assisted Conception and Fabrication (CFAO) systems we are able to manufacture different shapes of each object in the same series. In order to address the problem of global ecological crisis we ...Conference Paper -
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Railway line capacity consumption of different railway signalling systems under scheduled and disturbed conditions
(2013)This paper evaluates the capacity consumption on a Dutch railway line both under scheduled and disturbed traffic conditions. For the scheduled condition the standard UIC compression method is used, while the computation of capacity consumption under disturbed conditions requires multiple simulation runs via a Monte Carlo simulation set up. For the analysis we use the optimization-based train dispatching system ROMA that combines the ...Conference Paper -
Photoplethysmogram Processing Using an Adaptive Single Frequency Phase Vocoder Algorithm
(2013)Communications in Computer and Information Science ~ Biomedical Engineering Systems and Technologies : 4th International Joint Conference, BIOSTEC 2011, Rome, Italy, January 26-29, 2011, Revised Selected PapersConference Paper -
Sparse Probit Factor Analysis for Learning Analytics
(2013)2013 IEEE International Conference on Acoustics, Speech and Signal ProcessingWe develop a new model and algorithm for machine learning-based learning analytics, which estimate a learner's knowledge of the concepts underlying a domain. Our model represents the probability that a learner provides the correct response to a question in terms of three factors: their understanding of a set of underlying concepts, the concepts involved in each question, and each question's intrinsic difficulty. We estimate these factors ...Conference Paper -
A Robust and Efficient Method to Recover Neural Events from Noisy and Corrupted Data
(2013)2013 6th International IEEE/EMBS Conference on Neural Engineering (NER)In a variety of neural data analysis problems, “neural events” such as action potentials (APs) or post-synaptic potentials (PSPs), must be recovered from noisy and possibly corrupted measurements. For instance, in calcium imaging, an AP or group of APs generate a stereotyped calcium signal with a quick rise time and slow decay. In this work, we develop a general-purpose method for: (i) learning a template waveform that signifies the ...Conference Paper -
HSPA+/LTE-A Turbo Decoder on GPU and Multicore CPU
(2013)2013 Asilomar Conference on Signals, Systems and ComputersThis paper compares two implementations of reconfigurable and high-throughput turbo decoders. The first implementation is optimized for an NVIDIA Kepler graphics processing unit (GPU), whereas the second implementation is for an Intel Ivy Bridge processor. Both implementations support max-log-MAP and log-MAP turbo decoding algorithms, various code rates, different interleaver types, and all block-lengths, as specified by HSPA; and ...Conference Paper