Search results for "Linear"
showing 10 items of 7165 documents
INTERVENTI DI MIGLIORAMENTO SISMICO DEL PALAZZO BONAGIA DI PALERMO
2011
La memoria riguarda gli interventi progettati per la ricostruzione del Palazzo Bonagia sito in Via Alloro, nel centro storico di Palermo, che costituisce uno degli edifici più significativi dell’architettura civile tardo barocca siciliana e testimonia dei terribili danni inferti alla città dai bombardamenti del 1943, dall’incuria dei proprietari nel mantenere in vita le parti risparmiate dalla guerra e degli atti di vandalismo di cui sono stati oggetto un gran numero di monumenti. Nei primi anni del Settecento iniziò l'opera di successive aquisizioni di immobili, che vennero poi riuniti e riconfigurati attraverso un progetto unitario. La realizzazione del nuovo edificio venne commissionata …
Non-linear Correlation Coefficients for pushover analysis
2013
Aiming to put forward an improvement on Multimodal Pushover Analysis, a modified version of the modal correlation rule that takes into account the non-linear behavior of structures is proposed. The modification is primarily based on using the correlation coefficients consistent with the mechanical and dynamical properties of the hysteretic oscillators utilized in the MPA method, i.e. determined taking into account the second order statistics pertinent to the non-linear oscillators. Initially, the new correlation coefficients are evaluated by Monte Carlo Simulations (MCS), assuming a spectrum-compatible representation of the seismic input. The results of a large numerical parametric analysis…
A strategy for the identification of building structures under base excitations
2008
In this paper the evolution of a time domain dynamic identification technique based on a statistical moment approach is presented. This technique is usable in the case of structures under base random excitations in the linear state and in the non linear one. By applying Itoˆ stochastic calculus special algebraic equations can be obtained depending on the statistical moments of the response of the system to be identified. Such equations can be used for the dynamic identification of the mechanical parameters and of the input. The above equations, differently from many techniques in the literature, show the possibility to obtain the identification of the dissipation characteristics independent…
Dynamical identification of building structures: new strategies
2010
In this paper the evolution of a time domain dynamic identification technique based on a statistical moment approach is presented. This technique can be used in the case of structures under base random excitations in the linear state and in the non linear one. By applying stochastic calculus, special algebraic equations can be obtained depending on the statistical moments of the response of the system to be identified. Such equations can be used for the dynamic identification of the mechanical parameters and of the input. The above equations, differently from many techniques in the literature, show the possibility of obtaining the identification of the dissipation characteristics independen…
Linearità e waterfront
2018
Il waterfront è un luogo particolare sia per la città che per il progetto di architettura. Esistono due modi per intenderlo: uno perpendicolare ad esso ed uno orizzontale. Il primo è quello più tradizionale e scontato, il secondo invece meno diffuso ma di forte interesse.
Seme d'arancia. Area di progetto_ Quartiere Fondaco Nuovo
2011
Il progetto per un'area marginale di Barcellona Pozzo di Gotto si propone di ridare un'identità al quartiere di case popolari attraverso una rilettura dei valori esistenti, la trasformazione di una ferrovia dismessa in parco lineare, il mantenimento e rafforzamento delle colture tradizionali e il rapporto con il borgo, come elementi di partenza per le regole di un nuovo insediamento residenziale e di servizi collettivi per il quartiere.
EntityBot: Supporting Everyday Digital Tasks with Entity Recommendations
2021
Everyday digital tasks can highly benefit from systems that recommend the right information to use at the right time. However, existing solutions typically support only specific applications and tasks. In this demo, we showcase EntityBot, a system that captures context across application boundaries and recommends information entities related to the current task. The user’s digital activity is continuously monitored by capturing all content on the computer screen using optical character recognition. This includes all applications and services being used and specific to individuals’ computer usages such as instant messaging, emailing, web browsing, and word processing. A linear model is then …
Improving Harris corner selection strategy
2011
This study describes a corner selection strategy based on the Harris approach. Corners are usually defined as interest points for which intensity variation in the principal directions is locally maximised, as response from a filter given by the linear combination of the determinant and the trace of the autocorrelation matrix. The Harris corner detector, in its original definition, is only rotationally invariant, but scale-invariant and affine-covariant extensions have been developed. As one of the main drawbacks, corner detector performances are influenced by two user-given parameters: the linear combination coefficient and the response filter threshold. The main idea of the authors' approa…
Optimization of polygeneration plants and μ-grids for civil applications
2010
The problem of combined energy production and distribution of warm and cold fluids is very complex because it includes two possible configurations, the small single unit for individual buildings and the large plant integrated with district heating networks. Dealing with such a complex problem, involving a very large number of variables, requires efficient algorithms and resolution techniques. The present study illustrates a MILP approach to the optimization of synthesis, design and operation for CHCP-based μ-grids including thermal energy storages. The proposed approach develops a method for designing and optimizing district energy systems, starting with the information available for the di…
An Experimental Comparison between an Ironless and a Traditional Permanent Magnet Linear Generator for Wave Energy Conversion
2022
Permanent Magnet Linear Generators (PMLGs) are currently being studied for sea wave energy harvesting. Typically, a PMLG consists of an iron-made armature and a moving translator. The permanent magnets adoption produces parasitic effects, such as cogging force, and the machine weight increment. A solution could be the adoption of an ironless configuration, accepting a power density reduction. This paper investigates the use of ironless PMLGs in sea wave energy conversion systems by an experimental comparative analysis between an iron PMLG prototype and an ironless PMLG prototype, which share the same geometry. The main electrical and mechanical parameters (resistance, mass, and magnetic fie…