Search results for "TARE"
showing 10 items of 619 documents
Diagnostics for studies of novel laser ion acceleration mechanisms.
2014
Diagnostic for investigating and distinguishing different laser ion acceleration mechanisms has been developed and successfully tested. An ion separation wide angle spectrometer can simultaneously investigate three important aspects of the laser plasma interaction: (1) acquire angularly resolved energy spectra for two ion species, (2) obtain ion energy spectra for multiple species, separated according to their charge to mass ratio, along selected axes, and (3) collect laser radiation reflected from and transmitted through the target and propagating in the same direction as the ion beam. Thus, the presented diagnostic constitutes a highly adaptable tool for accurately studying novel accelera…
A methodology for the rapid characterization of Mode II delamination fatigue threshold in FRP composites
2019
Abstract A new methodology to measure the Mode II interlaminar fracture in fatigue for FRP composites is developed. The proposed methodology uses a Modified Transvers Crack Tensile (MTCT) specimen and is able to characterize the near threshold behavior in a robust, easier and significantly faster way than standard procedures. Analytical formulae, able to link the crack growth rate to the load or strain amplitudes, were found and verified, and their importance was explained, in particular, for what concerns the characterisation of the near threshold behavior. Experiments were performed both in load and strain control, while the delamination growth was monitored using different techniques inc…
Constraint handling in efficient global optimization
2017
Real-world optimization problems are often subject to several constraints which are expensive to evaluate in terms of cost or time. Although a lot of effort is devoted to make use of surrogate models for expensive optimization tasks, not many strong surrogate-assisted algorithms can address the challenging constrained problems. Efficient Global Optimization (EGO) is a Kriging-based surrogate-assisted algorithm. It was originally proposed to address unconstrained problems and later was modified to solve constrained problems. However, these type of algorithms still suffer from several issues, mainly: (1) early stagnation, (2) problems with multiple active constraints and (3) frequent crashes.…
Film and digital periapical radiographs for the measurement of apical root shortening
2012
Objectives: The aim of this study was to compare the accuracy and agreement of scanned film and digital periapical radiographs for the measurement of apical root shortening. Study design: Twenty-four film and digital [phosphor plate sensor (PPS)] periapical radiographs were taken using the long-cone paralleling technique for six extracted teeth before and after 1mm of apical root trimming. All teeth were mounted using a typodont and the radiographs were recorded using a film holder and polysiloxane occlusal index for each tooth to ensure standardization during the different radiographic exposures. The film radiographs were scanned and the tooth length measurements for the scanned film and d…
Dissonanze mediterranee
2009
Una questione aperta
2018
Il simposio di Messina è il primo tentativo di applicare la strategia di politica urbana sperimentata a Cefalù ad una scala urbana più grande. Il terzo punto individuato come centrale nella strategia di politica urbana: la partecipazione dei cittadini al processo decisionale, è sviluppato attraverso l’associazione culturale Officina 1892, di cui fanno parte alcuni politici legati al Partito socialista, intellettuali e professionisti locali. L’occasione era di avviare una discussione sul nuovo PRG e sulla proposta del Governo nazionale di costruire il Ponte sullo stretto di Messina. Il PRG era stato affidato dall’Amministrazione a tre professionisti di rilievo nazionale nominati dai tre part…
Dal Sud. Percorsi e mete di viaggio di Ernesto Basile (1876-1900)
2015
Come, dunque, studiare Ernesto Basile oggi e quale ambito della sua copiosa produzione analizzare? Alla luce dello stato degli studi odierni si potrebbe ritenere che possa essere stato detto tutto. Tuttavia, ci sono diversi ambiti che si offrono a ulteriori indagini, a nuove letture e ricerche. Tra questi, vi è quello dei viaggi, non irrilevante, per diverse ragioni. Una prima motivazione, che vale per Ernesto Basile così come per altri architetti, è quella più interna ed è strettamente legata alla natura stessa dell'architettura e dei luoghi, alla formazione continua dell'architetto e al ruolo che hanno i viaggi nel processo di costruzione o assimilazione del patrimonio di immagini e dei p…
Progettare in Sicilia al tempo del «Miracolo Economico»: il sogno di una moderna socialità nelle documentazioni degli archivi di architettura
2021
A sette anni dalla sua fondazione la Regione Autonoma Siciliana a Statuto Speciale, istituita nel 1946, si andava affermando, nel bene e nel male, come un vero “laboratorio politico e amministrativo”. In ambito architettonico il decennio del «Miracolo Economico» in Sicilia si apre con realizzazioni significative dell’avvenuta maturazione di una cultura del progetto che, dopo le pur apprezzabili permanenze novecentiste e gli entusiasti richiami a modi razionalisti oramai datati, ma assai opportuni in quella fase di ristrettezze dell’immediato dopoguerra, aveva saputo maturare sia una peculiare linea neo funzionalista sia contestualizzate declinazioni delle tendenze “altre” rispetto all’irres…
The synthesis, structure and properties of N-acetylated derivatives of ethyl 3-amino-1H-pyrazole-4-carboxylate.
2007
Ethyl 3-amino-1H-pyrazole-4-carboxylate (1) was yielded through total synthesis and reacted with acetic anhydride to give the acetylated products 2-6. Compounds 1-6 were studied with HPLC, X-ray, FT-IR, (1)H-NMR, (13)C-NMR and MS. Acetylation was carried out in solvents of various polarity, namely; chloroform; dioxane; DMF; acetic anhydride, at room temperature and at boiling points; and in the presence and absence of DMAP. The acetylated products are mainly nitrogen atoms in the ring. The position of the ring proton in the solution was based on NOESY; multinuclear HMBC, HSQC spectra and calculations. For equivalent amounts (1-1.5 mol) of acetic anhydride at room temperature two products of…
Touching the upper limit for ferromagnetic interactions in hetero-bridged dinuclear [Cu-2(II)] complexes using a novel N-5-dinucleating ligand bearin…
2012
A novel N-5-dinucleating ligand 4-amino-3,5-bis(bipyridine-2-yl)-1,2,4-triazole allows the preparation for the first time, and under mild conditions, of single and mixed amido(R-NH-)-bridged copper(II) complexes, the latter exhibiting very strong ferromagnetic coupling.