Robust Gravitational Wave Burst Detection and Source Localization in a Network of Interferometers Using Cross Wigner Spectra

We discuss a fast cross-Wigner transform based technique for detecting gravitational wave bursts, and estimating the direction of arrival, using a network of (three) non co-located interferometric detectors. The performances of the detector as a function of signal strength and source location, and the accuracy of the direction of arrival estimation are investigated by numerical simulations.Comment: accepted in Class. Quantum Gravit

Kinect Fusion improvement using depth camera calibration

Scene's 3D modelling, gesture recognition and motion tracking are fields in rapid and continuous development which have caused growing demand on interactivity in video-game and e-entertainment market. Starting from the idea of creating a sensor that allows users to play without having to hold any remote controller, the Microsoft Kinect device was created. The Kinect has always attract researchers in different fields, from robotics to Computer Vision (CV) and biomedical engineering as well as third-party communities that have released several Software Development Kit (SDK) versions for Kinect in order to use it not only as a game device but as measurement system. Microsoft Kinect Fusion control libraries (firstly released in March 2013) allow using the device as a 3D scanning and produce meshed polygonal of a static scene just moving the Kinect around. A drawback of this sensor is the geometric quality of the delivered data and the low repeatability. For this reason the authors carried out some investigation in order to evaluate the accuracy and repeatability of the depth measured delivered by the Kinect. The paper will present a throughout calibration analysis of the Kinect imaging sensor, with the aim of establishing the accuracy and precision of the delivered information: a straightforward calibration of the depth sensor in presented and then the 3D data are correct accordingly. Integrating the depth correction algorithm and correcting the IR camera interior and exterior orientation parameters, the Fusion Libraries are corrected and a new reconstruction software is created to produce more accurate models

Análise do ruído de fundo no entorno de aeroportos urbanos em cidades brasileiras, Aeroporto de Congonhas, São Paulo

OBJETIVO Avaliar quantitativamente o ruído de fundo no entorno do aeroporto de Congonhas, com base em ampla amostragem e medições sem interrupção. MÉTODOS Locais de medição escolhidos a partir de curvas de ruído de 62 e 72 LDN (day-night level), em equipamentos urbanos de uso compatível com o residencial. Quinze locais foram avaliados por mais de 168 horas consecutivas cada um (sete dias). A compilação baseou-se em cruzamentos de dados do controle de tráfego aéreo e os resultados foram validados por meio de relatórios meteorológicos do aeroporto. Diagnósticos preliminares foram estabelecidos utilizando a NBR-13368. O ruído de fundo foi calculado com base no Sound Exposure Level (SEL). Os parâmetros estatísticos foram calculados em intervalos de uma hora. RESULTADOS Apenas quatro dos 15 locais avaliados apresentaram clara contribuição da operação de aeronaves no incômodo. Mesmo assim, é possível identificar ruído de fundo acima do regulamentar durante os períodos de baixa atividade ou de fechamento do aeroporto durante a noite. CONCLUSÕES Todos os locais avaliados apresentaram ruído de fundo acima do regulamentar entre 7:00h e 21:00h. Nos intervalos entre 6:00h-6:59h e 21:00h-22:59h, os dados de monitoramento, quando analisados em conjunto com as atuais características operacionais do aeroporto, ainda possibilitam a elaboração de medidas mitigadoras adicionais.OBJECTIVE To perform a quantitative analysis of the background noise at Congonhas Airport surroundings based on large sampling and measurements with no interruption. METHODS Measuring sites were chosen from 62 and 72 DNL (day-night-level) noise contours, in urban sites compatible with residential use. Fifteen sites were monitored for at least 168 hours without interruption or seven consecutive days. Data compilation was based on cross-reference between noise measurements and air traffic control records, and results were validated by airport meteorological reports. Preliminary diagnoses were established using the standard NBR-13368. Background noise values were calculated based on the Sound Exposure Level (SEL). Statistic parameters were calculated in one-hour intervals. RESULTS Only four of the fifteen sites assessed presented aircraft operations as a clear cause for the noise annoyance. Even so, it is possible to detect background noise levels above regulation limits during periods of low airport activity or when it closes at night. CONCLUSIONS All the sites monitored showed background noise levels above regulation limits between 7:00 and 21:00. In the intervals between 6:00-6:59 and 21:00-22:59 the noise data, when analyzed with the current airport operational characteristics, still allow the development of additional mitigating measures

Enhancing the collaboration of earthquake engineering research infrastructures

Towards stronger international collaboration of earthquake engineering research infrastructures International collaboration and mobility of researchers is a means for maximising the efficiency of use of research infrastructures. The European infrastructures are committed to widen joint research and access to their facilities. This is relevant to European framework for research and innovation, the single market and the competitiveness of the construction industry.JRC.G.4-European laboratory for structural assessmen

Adoption of the Eurocodes in the Balkan Region

This report addresses the activities carried out for the adoption and implementation of the Eurocodes in the non-EU countries in the Balkan region within the context of the Enlargement and Integration Action of the JRC. The considerable interest in the implementation and adoption of the Eurocodes in the Balkan region is based on the opportunity to have an advanced common standardization environment, which is adaptable to the particular requirements of each country with regard to the geographical, geological or climatic conditions and also allows selecting the level of safety. Moreover, adoption and implementation of Eurocodes will help the Candidate Countries to fully implement EU acquis at the time of accession and support Potential Candidate Countries to progressively align themselves with the EU acquis. The main objective of the activities presented herein was to focus on progress and specific needs for adoption and implementation of the Eurocodes and related EN standards in the Balkan region. Generally, it may be concluded that most of the non-EU countries in the Balkan region are going to use the Eurocodes as primary standards. These countries are aware about needs for harmonization of national legislation and standardization framework for construction with EU legislation. However, in most of the countries there is a lack of relevant institutional support for adoption and implementation of the Eurocodes.JRC.G.5-European laboratory for structural assessmen

Simplified Models/Procedures for Estimation of Secant-to-Yielding Stiffness, Equivalent Damping, Ultimate Deformations and Shear Capacity of Bridge Piers on the Basis of Numerical Analysis

The present report gives charts and expressions for computing the equivalent stiffness and damping of bridge piers of rectangular hollow cross section at maximum displacement within the framework of displacement based design and assessment of bridges, based on the results of parametric non-linear cyclic fibre section analysis calibrated from full-scale experimental results. A state of the art review is presented concerning the different approaches that may be adopted to model shear effects in reinforced concrete columns concerning the different approaches that may be adopted to model the shear effects in reinforced concrete columns.JRC.G.5-European laboratory for structural assessmen

The Molise (Italy) Earthquakes of 31 October and 1 November 2002. Report and Analysis froma Field Mission.

Abstract not availableJRC.G-Institute for the Protection and the Security of the Citizen (Ispra

FUSÃO, APAGAMENTO, ASSIMETRIA E REPRESENTAÇÃO EM ARMADILHA PARA LAMARTINE DE CARLOS & CARLOS SUSSEKIND

Estudo de certas estratégias narrativas utilizadas por Carlos Sussekind em Armadilha para Lamartine. Entre elas, o apagamento da figura do narrador através da fusão de duas vozes narrativas discursivamente assimétricas. Com isso, busca-se encontrar a lógica estrutural do romance e seu significado ideológico, político e social. Resumen Estudio de ciertas estrategias narrativas utilizadas por Carlos Sussekind en Armadilha para Lamartine. Entre ellas, el apagamiento de la figura del narrador através de la fusión de dos voces narrativas discursivas. Con eso, busca-se encontrar la lógica estructural del romance y su significación ideologica, politica y social. Fusion, erasure, asymmetry and representation in Armadilha para Lamartine by Carlos & Carlos Sussekind Abstract A study of certain strategies used by Carlos Sussekind in Armadilha para Lamartine. Among these there is the erasure of the narrator through the fusion of two narrative voices discursively asymmetric. Due to this, an attempt is made to uncover the structural rationale of the novel and its ideological, political, and social significance

Autoritarismo e patrulhamento: sobre a recepção de Armadilha para Lamartine, de Carlos & Carlos Sussekind, pela censura e pela crítica literária nos anos 70

Análise do romance Armadilha para Lamartine, de Carlos & Carlos Sussekind, a partir de sua recepção no contexto histórico de sua primeira edição (1976). Palavras-chave: Romance brasileiro; Crítica; Recepção; Anos 7