2,310 research outputs found
Biblioteche disvelate. Saggi di scavo storico-bibliografico nella Biblioteca comunale di Sarnano. Mostra bibliografica, Sarnano, 'Il loggiato', 24 maggio-31 agosto 2008, a cura di R.M. Borraccini e G. Avarucci.
No full textSito web dell'esposizione virtuale. Ragioni e contenuto della ricerca: Ogni biblioteca è il risultato di scelte precise e consapevoli del privato o dell'istituzione cui fa capo e di esse è ad un tempo immagine e testimonianza. La Biblioteca comunale di Sarnano - al pari di molte altre biblioteche pubbliche - è sorta come istituto collettore di precedenti organismi librari autonomi, appartenuti alle corporazioni religiose, la cui vicenda secolare è stata interrotta traumaticamente nel sec. XIX in forza delle cosiddette leggi eversive. I fondi librari claustrali furono smembrati e inglobati nella costituenda biblioteca comunale, confusi tra di loro e privati delle singole identità. Si determinò cioè il fenomeno della 'dispersione lineare' dei libri i quali, scorporati dal loro nucleo originario, continuano però a vivere insieme. Opportunamente interrogati, pertanto, essi sono in grado di guidarci nel duplice obiettivo di restituire la propria autonoma identità ad ogni organismo librario primigenio e consentire all'organismo collettore la distinzione e il riconoscimento dei propri fondi, liberandoli dalla dimensione indefinita di sedimenti bibliografici genericamente etichettati come 'fondo antico'.
Gli uomini dei chiostri, infatti, intrattennero un rapporto privilegiato con i propri libri che in molti casi personalizzarono e rivendicarono. E i libri parlano, raccontano di sé e della propria storia, con le dichiarazioni esplicite e i contrassegni ancora oggi presenti sugli esemplari pervenuti: gli ex-libris, le formule di appartenenza, le annotazioni, le antiche segnature di collocazione, le legature. Così la fisionomia e l'identità degli organismi librari claustrali e, al loro interno, dei singoli personaggi che li hanno formati e accresciuti nel tempo, possono essere ridisegnate sia attraverso la tipologia letteraria del patrimonio, sia attraverso l'intreccio dei segnali bibliologici depositati nelle copie superstiti, che rivelano i percorsi seguiti e l'ordito di relazioni intellettuali, amicali e parentali intessute dai singoli possessori.
L'obiettivo dello scavo nella Biblioteca di Sarnano consiste nella identificazione delle librerie claustrali in essa devolute; delle vicende storiche che ne hanno segnato il percorso; degli uomini che le hanno alimentate e delle motivazioni che li hanno mossi;
del contributo specifico di cultura e di memoria che ognuna di esse ha apportato al patrimonio comune. Ciò consente alla Biblioteca comunale di dipanare il filo aggrovigliato della matassa indistinta del suo 'fondo antico' e di individuare la serie dei nuclei distinti e riconoscibili che ne hanno costituito il patrimonio storico, determinandone la fisionomia. Così essa potrà meglio riconoscere la sua natura profonda e stratificata, valutare partitamente il proprio grado di rappresentazione e di radicamento nel contesto territoriale in cui opera e calibrare più consapevolmente il proprio sviluppo
«Sotto mentite spoglie». Modernità e paesaggio di Giovanni Boine
No full textIntroduzione alla figura e all'opera di Giovanni Boine, in occasione della ristampa di Frantumi vengono messe in rilievo le caratteristiche dello stile dell'autore, che ne fanno un autore moderno e originale all'inizio del Novecento, assieme alla centralità tematica e simbolica che assume la descrizione del paesaggio ligure nel libro in questione e nel resto dell'opera
Cryogenic-Energy-Storage-Based Optimized Green Growth of an Integrated and Sustainable Energy System
No full textThe advancement of using the cryogenic energy storage (CES) system has enabled efficient utilization of abandoned wind and solar energy, and the system can be dispatched in the peak hours of regional power load demand to release energy. It can fill the demand gap, which is conducive to the peak regulation of the power system and can further promote the rapid development of new energy. This study optimizes the various types of energy complementary to the CES system using hybrid gravitational search algorithm-local search optimization (hGSA-LS). First, the mathematical model of the energy storage system (ESS) including the CES system is briefly described. Second, an economic scheduling optimization model of the IES is constructed by minimizing the operating cost of the system. Third, the hGSA-LS methods to solve the optimization problem are proposed. Simulations show that the hGSA-LS methodology is more efficient. The simulation results verify the feasibility of CES compared with traditional systems in terms of economic benefits, new energy consumption rate, primary energy saving rate, and carbon emissions under different fluctuations in energy prices. Optimization of the system operation using the proposed hGSA-LS algorithm takes 5.87 s; however, the GA, PSO, and GSA require 12.56, 10.33, and 7.95 s, respectively. Thus, the hGSA-LS algorithm shows a comparatively better performance than GA, PSO, and GSA in terms of time
Dalitz plot analysis of e+e- --> pi zero pi zero gamma events with the KLOE detector
No full textWe have studied the Dalitz plot of the e+e- -> pi0 pi0 gamma events collected at sqrt(s) ~ m(phi) with the KLOE detector. In the dipion invariant mass region below 700 MeV, the process under study is dominated by the non-resonant process e+e- -> omega pi0 with omega -> pi0 gamma whereas, for higher mass values, the radiative phi decay to the f0(980) is the dominant mechanism. Different theoretical models are used to fit the Dalitz plot, taking also into account a possible contribution of the sigma(600). For each model, we extract the f0(980) mass and its coupling to pipi, KKbar and to the phi
Fabrication of a sealed electrochemical microcell for in situ soft X-ray microspectroscopy and testing with in situ Co-polypyrrole composite electrodeposition for Pt-free oxygen electrocatalysis
No full textPresentazione
No full textIntroduzione e commento all'ampio studio di Monica Bocchetta sulle biblioteche conventuali e personali dei religiosi, a partire dalla ricognizione di fine '500 depositata nel cod. Vat. Lat. 11292 fino alla loro dispersione provocata dalle replicate soppressioni. La Congregazione, fondata da Pietro Gambacorta nel sec. XIV, si diffuse principalmente nelle località della Romagna e delle Marche – la prima comunità eremitica si radunò a Montebello nell’Urbinate – ma con solidi capisaldi a Venezia, Padova, Ferrara, Napoli e Roma, dove la Curia generalizia si insediò nel convento di S. Onofrio al Gianicolo
Semantic distances of WAIS Similarities word pairs in non-demented adults: An item-level index of semantic memory granularity
No full textInnovative approaches to test scoring can help neuropsychologists detect subtle semantic memory alterations. We focussed on the Wechsler Adult Intelligence Scale Similarities (SIM) test and calculated an item-level score based on the ‘Leacock & Chodorow ‘(LCH) semantic distance expressed by each SIM item. We hypothesised that LCH would predict 1) performance on standard semantic memory tests; 2) an Alzheimer aetiology; 3) transentorhinal grey-matter integrity. Six hundred sixty-nine non-demented participants completed a neuropsychological battery inclusive of SIM and consolidated tests of semantic memory and executive functioning. Hierarchical linear regressions were designed to test the association between LCH and semantic memory performance after controlling for major confounders. A hierarchical logistic regression was then designed to test the association between LCH and underlying aetiology (Alzheimer/cerebrovascular) in a mild cognitive impairment sub-cohort. Finally, we tested the association between LCH and both whole-brain grey-matter density and transentorhinal thickness using voxel-based-morphometry and region-of-interest models. LCH predicted semantic memory performance but not on a test significantly supported by executive resources. LCH also predicted clinical aetiology and grey-matter density in the transentorhinal cortex and in other regions involved in linguistic-semantic processing. No significant association was found with regional thickness. Post-hoc LCH scoring in 89 people with dementia revealed the presence of a gradient of diagnostic severity, i.e., healthy adults < mild cognitive impairment < dementia. Item-level scores of SIM performance are associated with neurocognitive constituents of semantic memory. LCH is a valuable construct that could help clinicians detect semantic memory decline in ageing adults with suspected neurodegeneration
Phylogenetic depth of the bacterial genera Aquifex and Thermotoga inferred from analysis of ribosomal protein, elongation factor, and RNA polymerase subunit sequences
No full textImage quality comparison of two different experimental setups for MEMS actuators functional evaluation: a preliminary study
No full textThe high interest of scientists and industries in the application of MEMS micro-actuators to several fields requires effective and robust measurement methods and systems for their quality assessment, focusing on their functional characterization, usually carried out through image analysis-based methods. In this study, a comparison of two experimental setups for image acquisition is proposed, aiming at establishing which setup collects images with higher quality for MEMS microgripper functional evaluation. The proposed work describes an experimental approach based on the evaluation of five parameters, i.e., brightness, saturation, contrast, sharpness, and signal-to-noise ratio, applied to 24 regions of interest in two sets of images of a same micro-actuator acquired from different optical setups at three magnification levels. Measurement results have been assessed following an objective approach by processing the acquired data through an in-house algorithm and a subjective approach by showing the acquired images to six observers and collecting their preferences
Study of an Optimized Micro-Grid’s Operation with Electrical Vehicle-Based Hybridized Sustainable Algorithm
No full textRecently, the expansion of energy communities has been aided by the lowering cost of storage technologies and the appearance of mechanisms for exchanging energy that is driven by economics. An amalgamation of different renewable energy sources, including solar, wind, geothermal, tidal, etc., is necessary to offer sustainable energy for smart cities. Furthermore, considering the induction of large-scale electric vehicles connected to the regional micro-grid, and causes of increase in the randomness and uncertainty of the load in a certain area, a solution that meets the community demands for electricity, heating, cooling, and transportation while using renewable energy is needed. This paper aims to define the impact of large-scale electric vehicles on the operation and management of the microgrid using a hybridized algorithm. First, with the use of the natural attributes of electric vehicles such as flexible loads, a large-scale electric vehicle response dispatch model is constructed. Second, three factors of micro-grid operation, management, and environmental pollution control costs with load fluctuation variance are discussed. Third, a hybrid gravitational search algorithm and random forest regression (GSA-RFR) approach is proposed to confirm the method’s authenticity and reliability. The constructed large-scale electric vehicle response dispatch model significantly improves the load smoothness of the micro-grid after the large-scale electric vehicles are connected and reduces the impact of the entire grid. The proposed hybridized optimization method was solved within 296.7 s, the time taken for electric vehicle users to charge from and discharge to the regional micro-grid, which improves the economy of the micro-grid, and realizes the effective management of the regional load. The weight coefficients λ1 and λ2 were found at 0.589 and 0.421, respectively. This study provides key findings and suggestions that can be useful to scholars and decisionmakers
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