Search results for "SAF"
showing 10 items of 2183 documents
Palermo, ZEN District. An occasion of urban re-qualifying
2012
Among the changes made to the original scheme proposed by Amoroso Group, were some that showed the willingness to accommodate the constraints established by the local council and were designed primarily to protect certain pre-existing historical sites in the area. Consequently, the gridded, dense neighbourhood Zen 2 had to be opened in certain parts. Thereupon on the South-East quarter the "0D" insula, the citrus grove, the historical outskirts and the school in Trapani Pescia Street detect an emblematic fragment, useful to understand the contradictions that exist in this district, where heterogeneous elements form self and distinct parts. The design of new residences in this area is an occ…
Le rôle du patrimoine dans le projet urbain et d’architecture Marseille et Tunis, villes de la Méditerranée
2014
Cette travail de recherche porte sur la mise en valeur et la transformation du patrimoine urbain et architectural à travers la pratique du projet urbain dans la ville méditerranéenne. La recherche étudie également la relation qui existe de nos jours entre le patrimoine et la durabilité environnementale, notions qui ne sont plus opposées mais complémentaires, dans une construction réciproque des identités et des différences conduisant à leur redéfinition. Certains projets durables réalisés en Méditerranée, ces dernières années, révèlent une façon inédite de comprendre le développement de la métropole à partir du patrimoine de la ville consolidée, en tant que vecteur mobilisateur de changemen…
Moving towards a new life cycle analysis approach by implementing low cost structural 3d monitoring of historic building safety by means of image bas…
2016
Abstract A building’s structural safety is often remit to human life fatalities and the measures of social protection and security often used following the collapse of a portion of the building. It is quite clear that, if it were possible to monitor the increase of static deterioration, it would be easier to prevent the collapse. There are two fundamental aspects closely linked to the building’s collapse: the first concerns the security of lives and the second concerns the well-being and quality of life when it is considered in relation to Cultural Heritage survival. Unfortunately, the high cost of a 3D survey does not usually permit a constant monitoring of the visible instability. The pap…
A Quantum-Inspired Classifier for Early Web Bot Detection
2022
This paper introduces a novel approach, inspired by the principles of Quantum Computing, to address web bot detection in terms of real-time classification of an incoming data stream of HTTP request headers, in order to ensure the shortest decision time with the highest accuracy. The proposed approach exploits the analogy between the intrinsic correlation of two or more particles and the dependence of each HTTP request on the preceding ones. Starting from the a-posteriori probability of each request to belong to a particular class, it is possible to assign a Qubit state representing a combination of the aforementioned probabilities for all available observations of the time series. By levera…
Further Experimental Investigation of Motored Engine Friction Using Shunt Pipe Method
2019
Mechanical friction is a significant power dissipater in the internal combustion engine. In the effort of designing more efficient and less pollutant engines, friction reduction is certainly on the agenda to be investigated. Such investigation cannot be possible without an accurate measurement of the same quantity. This publication regards a continued study on the mechanical friction determination in an internal combustion engine using the Pressurised Motoring Method. In this work, the friction mean effective pressure of a four-cylinder compression ignition engine was investigated with varying engine speed and manifold pressurisation, using a dedicated high precision sensor for the correct …
Ergonomics and cultural heritage: the Palatina chapel in Palermo, Italy
2007
The present article presents results of a study that aims at the assessment of ergonomic safety conditions inside the Palatina chapel of Palermo. To reach this object, an informative questionnaire was established so as to collect visitors’ subjective judgments regarding overall ergonomic conditions in terms of accessibility, availability, safety or else environmental conditions (thermo-hygrometry; air, sound and visual quality); this stage was carried out, bearing in mind the Museum Visitors’ Rights Card that is currently under creation by the "Legambiente" group. An automatic instrument was bought to daily count the numbers of visitors; the latter element shall then be related to indoor en…
Human reliability analysis to support the development of a software project
2017
The Human Reliability Analysis (HRA) is considered as a useful tool in predicting and quantifying the occurrence of human errors during the execution of a specific task. With this recognition, the present paper firstly aims at discussing the support given by HRA methodologies to the fault risk evaluation. Then, the Technique for Human Error Rate Prediction (THERP) is suggested to evaluate the success probability of a software development project.
A Structured Methodology for the Safety Key Performance Indicator Prioritization: A Case Study
2021
Nowadays, companies have become more and more attentive to the management and evaluation of activities, processes and actions related to the safety in workplaces. This attention stems from both the need to comply with law requirements and to improve the productivity of the company by ensuring the reduction of occupational injuries and diseases. Accordingly, performance evaluation is a fundamental step also theorized by the most important guidelines on Occupational Health and Safety Management Systems (OHSMSs). With this recognition, the present paper provides a methodology to prioritize Safety Key Performance Indicators (SKPIs) starting from an initial set selected from the literature. Refe…
Multiobjective Optimal Reconfiguration of MV Networks with Different Earthing Systems
2010
The paper deals with the traditional problem of multiobjective optimal reconfiguration applied to power distribution systems considering the safety issue in the formulation. The applications are devoted to the solution of the posed problem in networks in which coexist energy sources with unearthed neutral point and resonant earthed neutral point. After a brief review of the most recent papers on optimal reconfiguration, the paper outlines the safety problem and provides a solution to the multiobjective problem using the Non dominated Sorting Genetic Algorithm II aiming at: minimal power losses operation, safety check at distribution substations and load balancing among the HV/MV transformer…
Safety Concerns on Ground Fault Application Transfer Phenomenon in HV Installations
2007
When a fault to ground occurs in HV/MV substations supplied by a combined overhead-cable line, most of the fault current can be transferred and injected into the soil several kilometers far away from the fault location. This phenomenon is called "fault application transfer" and mostly concerns transition stations, where cables are connected to the overhead line. If the transition station is a dead-end steel pole structure, usually accessible to the general public, the local ground electrode could be inadequate to maintain ground potential rise within safety limits. Hence, dangerous touch and step voltages may appear at exposed locations. In the paper results of various computer simulations …